PARENT HOLDING CORP
S-4, 1997-11-14
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<PAGE>
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 14, 1997
                                                      REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                              PARENT HOLDING CORP.
 
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                              <C>                            <C>
           DELAWARE                          4899                  62-1716020
 (State or other jurisdiction    (Primary Standard Industrial   (I.R.S. Employer
              of                 Classification Code Number)     Identification
incorporation or organization)                                      Number)
</TABLE>
 
                               755 CROSSOVER LANE
                               MEMPHIS, TN 38117
                                 (901) 374-5000
 
    (Address, including zip code, telephone number, including area code, of
                   registrant's principal executive offices)
                         ------------------------------
 
                              RALPH B. LAKE, ESQ.
                         SECRETARY AND GENERAL COUNSEL
                              PARENT HOLDING CORP.
                               755 CROSSOVER LANE
                               MEMPHIS, TN 38117
                                 (901) 374-5000
 
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                         ------------------------------
 
                        COPIES OF ALL COMMUNICATIONS TO:
 
         JOHN M. NEWELL, ESQ.                   WILLIAM J. PHILLIPS, ESQ.
           LATHAM & WATKINS                        DEWEY BALLANTINE LLP
  633 WEST FIFTH STREET, SUITE 4000            1301 AVENUE OF THE AMERICAS
    LOS ANGELES, CALIFORNIA 90071                NEW YORK, NEW YORK 10019
            (213) 485-1234                            (212) 259-8000
 
                         ------------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after this Registration Statement becomes effective and all other
conditions under the Merger Agreement (described in the Joint Proxy
Statement/Prospectus herein) are satisfied or waived.
                         ------------------------------
 
    If the securities being registered on this form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. / /
                         ------------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                       PROPOSED MAXIMUM     PROPOSED MAXIMUM
            TITLE OF EACH CLASS OF                    AMOUNT TO         OFFERING PRICE          AGGREGATE            AMOUNT OF
          SECURITIES TO BE REGISTERED             BE REGISTERED(1)       PER SHARE(2)       OFFERING PRICE(2)   REGISTRATION FEE(3)
<S>                                              <C>                  <C>                  <C>                  <C>
Common Stock, $.01 par value...................      91,850,830             $38.13           $3,502,089,682         $1,061,239
</TABLE>
 
(1) Represents the maximum number of shares of Common Stock, $.01 par value per
    share ("Parent Common Stock"), of Parent Holding Corp. (the "Registrant")
    issuable in connection with the mergers (together, the "Merger")
    contemplated by the Merger Agreement.
 
(2) Estimated solely for the purpose of determining the registration fee in
    accordance with Rule 457(f)(1). The proposed maximum aggregate offering
    price is based upon the sum of (a) the product of (i) $37.375 (the average
    of the high and low prices of Promus Common Stock on November 12, 1997)
    times (ii) 50,864,216 (the sum of the number of shares of Promus Common
    Stock outstanding plus the number of shares of Promus Common Stock issuable
    prior to the Effective Time upon the exercise of options to purchase Promus
    Common Stock) plus (b) the product of (i) $39.0625 (the average of the high
    and low prices of Doubletree Common Stock on November 12, 1997) times (ii)
    40,986,614 (the sum of the number of shares of Doubletree Common Stock
    outstanding plus the number of shares of Doubletree Common Stock issuable
    prior to the Effective Time upon the exercise of options and warrants to
    purchase Doubletree Common Stock). The proposed maximum offering price per
    share is based upon the proposed maximum aggregate offering price divided by
    the amount to be registered.
 
(3) The registration fee for the securities registered hereby has been
    calculated pursuant to Section 6(b) of the Securities Act of 1933, as
    amended (the "Securities Act"), as one thirty-third of one percent of the
    proposed maximum aggregate offering price. A fee of $866,016 was paid on
    October 2, 1997 pursuant to Rules 14a-6 and 0-11 promulgated under the
    Securities Exchange Act of 1934, as amended (the "Exchange Act"), in respect
    of the Merger upon filing by Doubletree and Promus of a preliminary joint
    proxy statement relating thereto. Pursuant to Rule 457(b) promulgated under
    the Securities Act and Section 14(g)(2) of the Exchange Act and Rule 0-11
    promulgated thereunder, the amount of such previously paid fee has been
    credited against the registration fee payable in connection with this
    filing.
                         ------------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME EFFECTIVE
ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION (THE "COMMISSION"),
ACTING PURSUANT TO SAID SECTION 8(a), MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                  [LOGO]                                [LOGO]
 
                  MERGER PROPOSED--YOUR VOTE IS VERY IMPORTANT
 
    The Boards of Directors of Doubletree Corporation and Promus Hotel
Corporation have agreed on a merger of equals designed to create one of the
premier lodging companies in the United States. The combined company will be
named Promus Hotel Corporation, also known as New Promus, and will be
headquartered in Memphis, Tennessee.
 
    If the merger is completed, Doubletree stockholders will receive one share
of New Promus common stock in exchange for each share of Doubletree common stock
that they own. Promus stockholders will receive 0.925 of a share of New Promus
common stock in exchange for each share of Promus stock that they own. Based on
closing prices on November 13, 1997, the market value of one share of Promus
common stock was $37.44, one share of Doubletree common stock was $39.25 and
0.925 of a share of Doubletree common stock was $36.31. We estimate that,
following the merger, Doubletree stockholders will own approximately 46% of the
stock of New Promus and Promus stockholders will own approximately 54%.
 
    The merger cannot be completed unless the stockholders of both companies
approve it. We have scheduled special meetings for our stockholders to vote on
the merger. YOUR VOTE IS VERY IMPORTANT. At the special meetings, you also will
vote on the 1997 Equity Participation Plan of New Promus.
 
    Whether or not you plan to attend a meeting, please take the time to vote by
completing and mailing the enclosed proxy card to us. If you sign, date and mail
your proxy card without indicating how you want to vote, your proxy will be
counted as a vote in favor of the merger and the 1997 Equity Participation Plan.
If you fail to return your card, the effect in most cases will be a vote against
the merger and the 1997 Equity Participation Plan.
 
    The dates, times and places of the meetings are as follows:
 
For Doubletree Stockholders:
THURSDAY, DECEMBER 18, 1997
10:00 A.M.
DOUBLETREE PARADISE VALLEY RESORT
5401 N. SCOTTSDALE ROAD
SCOTTSDALE, ARIZONA
 
For Promus Stockholders:
 
THURSDAY, DECEMBER 18, 1997
10:00 A.M.
EMBASSY HALL
EMBASSY SUITES HOTEL
1022 SOUTH SHADY GROVE ROAD
MEMPHIS, TENNESSEE
 
    This Joint Proxy Statement/Prospectus provides you with detailed information
about the proposed merger. In addition, you may obtain information about our
companies from documents that we have filed with the Securities and Exchange
Commission. We encourage you to read this entire document carefully.
 
/s/ RICHARD J. FERRIS                   /s/ MICHAEL D. ROSE
- --------------------------------------  --------------------------------------
Richard J. Ferris                       Michael D. Rose
Co-Chairman of the Board                Chairman of the Board
Doubletree Corporation                  Promus Hotel Corporation
 
 NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
 REGULATORS HAVE APPROVED THE NEW PROMUS COMMON STOCK TO BE ISSUED UNDER THIS
 JOINT PROXY STATEMENT/PROSPECTUS OR DETERMINED IF THIS JOINT PROXY
 STATEMENT/PROSPECTUS IS ACCURATE OR ADEQUATE. ANY REPRESENTATION TO THE
 CONTRARY IS A CRIMINAL OFFENSE.
 
Joint Proxy Statement/Prospectus dated November 14, 1997 and first mailed to
stockholders on November 18, 1997.
<PAGE>
                             DOUBLETREE CORPORATION
                             410 NORTH 44TH STREET
                                   SUITE 700
                             PHOENIX, ARIZONA 85008
 
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                        TO BE HELD ON DECEMBER 18, 1997
 
                            ------------------------
 
To the Stockholders of Doubletree Corporation:
 
    A Special Meeting of Stockholders of Doubletree Corporation ("Doubletree")
will be held on December 18, 1997, at 10:00 a.m., at Doubletree Paradise Valley
Resort, 5401 North Scottsdale Road, Scottsdale, Arizona (the "Doubletree Special
Meeting"), for the following purposes:
 
    (a) To consider and vote upon a proposal to approve and adopt an Agreement
       and Plan of Merger dated as of September 1, 1997 (the "Merger Agreement")
       by and among Doubletree, Promus Hotel Corporation ("Promus"), and Parent
       Holding Corp., a newly-formed corporation jointly owned by Doubletree and
       Promus ("New Promus"), pursuant to which, among other things, (i)
       Doubletree and Promus will become wholly-owned subsidiaries of New
       Promus; (ii) each outstanding share of common stock of Doubletree will be
       converted into the right to receive one share of common stock of New
       Promus; and (iii) each outstanding share of common stock of Promus will
       be converted into the right to receive 0.925 of a share of common stock
       of New Promus;
 
    (b) To consider and vote on a proposal to approve and adopt the 1997 Equity
       Participation Plan of New Promus; and
 
    (c) To transact such other business as may properly come before the
       Doubletree Special Meeting and any or all adjournments thereof.
 
    THE BOARD OF DIRECTORS OF DOUBLETREE HAS APPROVED THE MERGER AGREEMENT AND
THE TRANSACTIONS CONTEMPLATED THEREBY AND RECOMMENDS THAT STOCKHOLDERS VOTE FOR
APPROVAL AND ADOPTION OF THE MERGER AGREEMENT. THE BOARD OF DIRECTORS OF
DOUBLETREE ALSO RECOMMENDS THAT STOCKHOLDERS VOTE FOR APPROVAL AND ADOPTION OF
THE 1997 EQUITY PARTICIPATION PLAN OF NEW PROMUS.
 
    The Merger Agreement and other important matters are explained in the
accompanying Joint Proxy Statement/Prospectus, which you are urged to read
carefully. A copy of the Merger Agreement is attached as Annex A to the Joint
Proxy Statement/Prospectus. In addition, a copy of the 1997 Equity Participation
Plan of New Promus is attached as Annex F to the Joint Proxy
Statement/Prospectus.
 
    The Board of Directors of Doubletree has fixed the close of business on
October 31, 1997 as the record date for determining the stockholders entitled to
receive notice of and to vote at the Doubletree Special Meeting and at any and
all adjournments or postponements thereof.
<PAGE>
    Management welcomes your attendance at the Doubletree Special Meeting.
Whether or not you expect to attend the Doubletree Special Meeting in person,
however, you are requested to complete, sign, date and promptly return the
enclosed proxy in the accompanying postage-paid envelope. The prompt return of
your proxy will save expenses involved in further communication. Your proxy will
not affect your right to vote in person in the event you attend the Doubletree
Special Meeting. FAILURE TO RETURN A PROPERLY EXECUTED PROXY CARD OR TO VOTE IN
PERSON AT THE DOUBLETREE SPECIAL MEETING WILL HAVE THE SAME EFFECT AS A VOTE
AGAINST THE MERGER AGREEMENT.
 
<TABLE>
<S>                             <C>  <C>
                                By:             /s/ DAVID L. STIVERS
                                     -----------------------------------------
                                                  David L. Stivers
                                               SENIOR VICE PRESIDENT,
                                           GENERAL COUNSEL AND SECRETARY
</TABLE>
 
Phoenix, Arizona
November 14, 1997
 
                            YOUR VOTE IS IMPORTANT.
     TO VOTE YOUR SHARES, PLEASE SIGN, DATE AND COMPLETE THE ENCLOSED PROXY
             AND MAIL IT PROMPTLY IN THE ENCLOSED RETURN ENVELOPE.
                       STOCKHOLDERS SHOULD NOT SEND STOCK
                        CERTIFICATES WITH THEIR PROXIES.
<PAGE>
                            PROMUS HOTEL CORPORATION
                               755 CROSSOVER LANE
                            MEMPHIS, TENNESSEE 38117
 
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                        TO BE HELD ON DECEMBER 18, 1997
 
                            ------------------------
 
To the Stockholders of Promus Hotel Corporation:
 
    A Special Meeting of Stockholders of Promus Hotel Corporation ("Promus")
will be held on December 18, 1997, at 10:00 a.m., at the Embassy Hall, Embassy
Suites Hotel, 1022 South Shady Grove Road, Memphis, Tennessee (the "Promus
Special Meeting"), for the following purposes:
 
    (a) To consider and vote upon a proposal to approve and adopt an Agreement
       and Plan of Merger dated as of September 1, 1997 (the "Merger Agreement")
       by and among Promus, Doubletree Corporation ("Doubletree") and Parent
       Holding Corp., a newly-formed corporation jointly owned by Promus and
       Doubletree ("New Promus"), pursuant to which, among other things, (i)
       Promus and Doubletree will become wholly-owned subsidiaries of New
       Promus; (ii) each outstanding share of common stock of Promus will be
       converted into the right to receive 0.925 of a share of common stock of
       New Promus; and (iii) each outstanding share of common stock of
       Doubletree will be converted into the right to receive one share of
       common stock of New Promus;
 
    (b) To consider and vote on a proposal to approve and adopt the 1997 Equity
       Participation Plan of New Promus; and
 
    (c) To transact such other business as may properly come before the Promus
       Special Meeting and any or all adjournments thereof.
 
    THE BOARD OF DIRECTORS OF PROMUS HAS APPROVED THE MERGER AGREEMENT AND THE
TRANSACTIONS CONTEMPLATED THEREBY AND RECOMMENDS THAT STOCKHOLDERS VOTE FOR
APPROVAL AND ADOPTION OF THE MERGER AGREEMENT. THE BOARD OF DIRECTORS OF PROMUS
ALSO RECOMMENDS THAT STOCKHOLDERS VOTE FOR APPROVAL AND ADOPTION OF THE 1997
EQUITY PARTICIPATION PLAN OF NEW PROMUS.
 
    The Merger Agreement and other important matters are explained in the
accompanying Joint Proxy Statement/Prospectus, which you are urged to read
carefully. A copy of the Merger Agreement is attached as Annex A to the Joint
Proxy Statement/Prospectus. In addition, a copy of the 1997 Equity Participation
Plan of New Promus is attached as Annex F to the Joint Proxy
Statement/Prospectus.
 
    The Board of Directors of Promus has fixed the close of business on October
31, 1997 as the record date for determining the stockholders entitled to receive
notice of and to vote at the Promus Special Meeting and at any and all
adjournments or postponements thereof.
<PAGE>
    Management welcomes your attendance at the Promus Special Meeting. Whether
or not you expect to attend the Promus Special Meeting in person, however, you
are requested to complete, sign, date and promptly return the enclosed proxy in
the accompanying postage-paid envelope. The prompt return of your proxy will
save expenses involved in further communication. Your proxy will not affect your
right to vote in person in the event you attend the Promus Special Meeting.
FAILURE TO RETURN A PROPERLY EXECUTED PROXY CARD OR TO VOTE IN PERSON AT THE
PROMUS SPECIAL MEETING WILL HAVE THE SAME EFFECT AS A VOTE AGAINST THE MERGER.
 
                                                   /s/  RALPH B. LAKE
 
                                        ----------------------------------------
                                                     Ralph B. Lake
                                                 SENIOR VICE PRESIDENT,
                                             GENERAL COUNSEL AND SECRETARY
 
Memphis, Tennessee
November 14, 1997
 
                            YOUR VOTE IS IMPORTANT.
     TO VOTE YOUR SHARES, PLEASE SIGN, DATE AND COMPLETE THE ENCLOSED PROXY
             AND MAIL IT PROMPTLY IN THE ENCLOSED RETURN ENVELOPE.
 
                       STOCKHOLDERS SHOULD NOT SEND STOCK
                        CERTIFICATES WITH THEIR PROXIES.
<PAGE>
                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                 PAGE
                                                 -----
<S>                                           <C>
QUESTIONS AND ANSWERS ABOUT THE
  DOUBLETREE/PROMUS MERGER..................           1
 
WHO CAN HELP ANSWER YOUR QUESTIONS..........           2
 
SUMMARY.....................................           3
 
RISK FACTORS................................          14
 
THE DOUBLETREE SPECIAL MEETING..............          16
  General...................................          16
  Record Date and Voting....................          16
  Voting and Revocation of Proxies..........          17
 
THE PROMUS SPECIAL MEETING..................          18
  General...................................          18
  Record Date and Voting....................          19
  Voting and Revocation of Proxies..........          19
 
THE MERGER..................................          21
  Background of the Merger..................          21
  Recommendations of the Boards of Directors
    of Doubletree and Promus; Reasons for
    the Merger..............................          24
  Opinion of Financial Advisor to
    Doubletree..............................          29
  Opinion of Financial Advisor to Promus....          33
  Interests of Certain Persons in the
    Merger..................................          38
  Accounting Treatment of the Merger........          44
  Certain Federal Regulatory Matters........          45
  Certain Federal Income Tax Consequences...          45
  Delisting and Deregistration of Doubletree
    Common Stock and Promus Common Stock;
    Listing of New Promus Common Stock......          47
  Resales of New Promus Common Stock Issued
    in Connection with the Merger; Affiliate
    Agreements..............................          48
  No Appraisal Rights.......................          48
  Cautionary Statement Concerning Forward-
    Looking Statements......................          48
 
THE COMBINED COMPANY........................          50
  Business and Strategy.....................          50
  Hotel Properties..........................          52
  Directors and Executive Officers..........          57
 
THE MERGER AGREEMENT........................          58
  The Merger................................          58
  Conversion of Shares......................          58
  Exchange of Stock Certificates............          59
  Representations and Warranties............          61
  Certain Covenants.........................          61
  Conditions to Obligations to Effect the
    Merger..................................          66
  Termination; Termination Fees and
    Expenses................................          68
  Amendment and Waiver......................          70
 
OTHER AGREEMENTS............................          71
  Doubletree Stock Option Agreement.........          71
  Promus Stock Option Agreement.............          72
  Stockholder Support Agreement.............          73
 
REFINANCING ARRANGEMENTS....................          74
 
COMPARATIVE MARKET PRICES AND DIVIDENDS.....          75
 
<CAPTION>
                                                 PAGE
                                                 -----
<S>                                           <C>
 
UNAUDITED PRO FORMA FINANCIAL
  INFORMATION...............................          76
 
PRO FORMA SECURITY OWNERSHIP OF CERTAIN
  BENEFICIAL OWNERS AND MANAGEMENT OF NEW
  PROMUS....................................          79
 
DESCRIPTION OF NEW PROMUS CAPITAL STOCK.....          81
  General...................................          81
  New Promus Common Stock...................          81
  Preferred Stock...........................          81
  Preferred Share Purchase Rights...........          82
  Certain Effects of Preferred Share
    Purchase Rights.........................          82
  Prohibited Business Transactions..........          82
  Registrar and Transfer Agent..............          83
 
COMPARISON OF RIGHTS OF HOLDERS OF
  DOUBLETREE COMMON STOCK AND PROMUS COMMON
  STOCK BEFORE AND AFTER THE MERGER.........          84
  Authorized Capital........................          84
  Number of Directors.......................          84
  Classes and Terms of Directors............          84
  Actions by Written Consent of
    Stockholders; Special Meetings of
    Stockholders............................          85
  Amendment of Bylaws.......................          85
  Business Combination Provisions...........          85
  Retirement of Directors...................          85
 
PROPOSAL TO APPROVE NEW PROMUS EQUITY
  PARTICIPATION PLAN........................          86
  New Promus Equity Participation Plan......          86
  Administration............................          86
  Eligibility...............................          86
  Awards under the New Promus Equity
    Participation Plan......................          87
  Securities Laws and Federal Income
    Taxes...................................          88
  Recommendation of the Boards of
    Directors...............................          89
 
STOCKHOLDER PROPOSALS.......................          90
 
LEGAL MATTERS...............................          90
 
EXPERTS.....................................          90
 
OTHER MATTERS...............................          91
 
WHERE YOU CAN FIND MORE INFORMATION.........          92
 
ANNEXES
  A.  MERGER AGREEMENT
  B.  FAIRNESS OPINION OF MORGAN STANLEY
  C.  FAIRNESS OPINION OF BT WOLFENSOHN
  D.  FORM OF RESTATED CERTIFICATE OF INCORPORATION OF
      NEW PROMUS
  E.  FORM OF AMENDED AND RESTATED BYLAWS OF NEW PROMUS
  F.   FORM OF NEW PROMUS EQUITY PARTICIPATION PLAN
</TABLE>
<PAGE>
                             QUESTIONS AND ANSWERS
                       ABOUT THE DOUBLETREE/PROMUS MERGER
 
Q: WHY ARE THE TWO COMPANIES PROPOSING TO MERGE?
 
A:  Because we believe New Promus will provide you with substantial benefits and
    enable us to better serve our customers. The merger will create one of the
    largest hotel companies in the United States, with over 1,180 hotels with
    approximately 177,000 rooms under management or franchise. We believe that
    the merger will combine Promus's strength in franchising and building brands
    with Doubletree's strength in hotel management. The merger will create a
    portfolio of hotel brands, including Doubletree Hotels, Embassy Suites,
    Doubletree Guest Suites, Homewood Suites, Club Hotels by Doubletree, Hampton
    Inn, Hampton Inn & Suites, and Red Lion Hotels & Inns.
 
Q: WHAT DO I NEED TO DO NOW?
 
A:  Just mail your signed proxy card in the enclosed return envelope as soon as
    possible, so that your shares may be represented at the special meetings.
    The Doubletree and Promus special meetings will both take place on December
    18, 1997. The Boards of Directors of both Doubletree and Promus recommend
    voting in favor of the proposed merger.
 
Q: IF MY SHARES ARE HELD IN "STREET NAME" BY MY BROKER, WILL MY BROKER VOTE MY
    SHARES FOR ME?
 
A:  Your broker will vote your shares only if you provide instructions on how to
    vote. You should follow the directions provided by your broker regarding how
    to instruct your broker to vote your shares.
 
Q: CAN I CHANGE MY VOTE AFTER I HAVE MAILED MY SIGNED PROXY CARD?
 
A:  Yes. You can change your vote at any time before your proxy is voted at the
    stockholder meeting. You can do this in one of three ways. First, you can
    send a written notice stating that you would like to revoke your proxy.
    Second, you can complete and submit a new proxy card. If you choose either
    of these two methods, you must submit your notice of revocation or your new
    proxy card to Doubletree at the address on page 18 if you are a Doubletree
    stockholder, or to Promus at the address on page 20 if you are a Promus
    stockholder. Third, you can attend the stockholder meeting and vote in
    person. Simply attending the meeting, however, will not revoke your proxy.
    If you have instructed a broker to vote your shares, you must follow
    directions received from your broker to change your vote.
 
Q: SHOULD I SEND IN MY STOCK CERTIFICATES NOW?
 
A:  No. After the merger is completed, we will send you written instructions for
    exchanging your share certificates.
 
Q: WHAT WILL I RECEIVE IN THE MERGER?
 
A:  Promus stockholders will receive 0.925 of a share of New Promus common stock
    in exchange for each share of Promus common stock. We will not issue
    fractional shares. Promus stockholders who would otherwise be entitled to
    receive a fractional share instead will receive cash based on the market
    value of the fractional share of New Promus common stock.
 
    Doubletree stockholders will receive one share of New Promus common stock in
    exchange for each share of Doubletree common stock.
 
    EXAMPLE:
 
    - IF YOU CURRENTLY OWN 100 SHARES OF PROMUS COMMON STOCK, THEN AFTER THE
      MERGER YOU WILL BE ENTITLED TO RECEIVE 92 SHARES OF NEW PROMUS COMMON
      STOCK AND A CHECK FOR THE MARKET VALUE OF THE 0.5 FRACTIONAL SHARE.
 
    - IF YOU CURRENTLY OWN 100 SHARES OF DOUBLETREE COMMON STOCK, THEN AFTER THE
      MERGER YOU WILL BE ENTITLED TO RECEIVE 100 SHARES OF NEW PROMUS COMMON
      STOCK.
 
                                       1
<PAGE>
Q: WHEN DO YOU EXPECT THE MERGER TO BE COMPLETED?
 
A:  We are working towards completing the merger as quickly as possible. In
    addition to stockholder approvals, we must also obtain regulatory approvals.
    We expect to complete the merger by the end of December 1997.
 
Q: WHAT ARE THE TAX CONSEQUENCES OF THE MERGER?
 
A:  The merger generally will be tax-free to you for federal income tax
    purposes. To review the tax consequences to stockholders in greater detail,
    see page 45.
 
Q: WHAT OTHER MATTERS WILL BE VOTED ON AT THE SPECIAL MEETINGS?
 
A:  In addition to the merger, Doubletree and Promus stockholders will be asked
    at their special meetings to approve the 1997 Equity Participation Plan of
    New Promus, which will be used following the merger to grant stock options,
    restricted stock and other benefits to officers and employees of New Promus.
    We do not expect to ask you to vote on any other matters at the special
    meetings.
 
                       WHO CAN HELP ANSWER YOUR QUESTIONS
 
    If you have more questions about the merger you should contact:
 
                            DOUBLETREE STOCKHOLDERS:
 
                             Doubletree Corporation
                        410 North 44th Street, Suite 700
                             Phoenix, Arizona 85008
                    Attention: Office of Investor Relations
                          Phone Number: (602) 220-6666
 
                              PROMUS STOCKHOLDERS:
 
                            Promus Hotel Corporation
                               755 Crossover Lane
                            Memphis, Tennessee 38117
                         Attention: Investor Relations
                          Phone Number: (901) 374-5468
    If you would like additional copies of the Joint Proxy Statement/Prospectus
or if you have questions about the merger, you should contact:
 
                             D.F. King & Co., Inc.
 
                                77 Water Street
                            New York, New York 10005
                           Phone Number: 800-755-3107
 
                                       2
<PAGE>
                                    SUMMARY
 
    THIS SUMMARY HIGHLIGHTS SELECTED INFORMATION FROM THIS DOCUMENT AND MAY NOT
CONTAIN ALL OF THE INFORMATION THAT IS IMPORTANT TO YOU. TO UNDERSTAND THE
MERGER FULLY AND FOR A MORE COMPLETE DESCRIPTION OF THE LEGAL TERMS OF THE
MERGER, YOU SHOULD READ CAREFULLY THIS ENTIRE DOCUMENT AND THE DOCUMENTS WE HAVE
REFERRED YOU TO. SEE "WHERE YOU CAN FIND MORE INFORMATION" ON PAGE 92.
 
                                 THE COMPANIES
 
DOUBLETREE CORPORATION
410 North 44th Street, Suite 700
Phoenix, Arizona 85008
(602) 220-6666
 
    Doubletree Corporation is one of the largest full service hotel operating
companies in the United States. Doubletree provides hotel owners with management
and franchise services under its Doubletree Hotels, Doubletree Guest Suites,
Doubletree Club Hotels, Club Hotels by Doubletree and Red Lion Hotels & Inns
brand names, as well as management services for other non-Doubletree brand
hotels.
 
PROMUS HOTEL CORPORATION
755 Crossover Lane
Memphis, Tennessee 38117
(901) 374-5468
 
    Promus Hotel Corporation is one of the leading hotel companies in the United
States. Promus operates the Embassy Suites, Hampton Inn, Hampton Inn & Suites
and Homewood Suites hotel brands, and Embassy Vacation Resort and Hampton
Vacation Resort vacation interval ownership brands.
 
                           OUR REASONS FOR THE MERGER
 
    We believe that by combining Doubletree's strengths as a leading hotel
management company with Promus's strengths as a leading hotel franchisor, we
will create a powerful new hotel company in the lodging industry. We also
believe that the merger will provide opportunities for significant revenue
growth and operating cost savings.
 
    To review the reasons for the merger in greater detail, see pages 24 through
29.
 
THE STOCKHOLDERS' MEETINGS (PAGES 16 AND 18)
 
    The Doubletree Special Meeting will be held at the Doubletree Paradise
Valley Resort, 5401 N. Scottsdale Road, Phoenix, Arizona at 10:00 a.m. on
December 18, 1997.
 
    The Promus Special Meeting will be held at Embassy Hall, Embassy Suites
Hotel, 1022 South Shady Grove Road, Memphis, Tennessee, at 10:00 a.m. on
December 18, 1997.
 
                      OUR RECOMMENDATIONS TO STOCKHOLDERS
 
TO DOUBLETREE STOCKHOLDERS:
 
    The Doubletree Board believes that the merger is in your best interest and
recommends that you vote FOR the proposals to:
 
    (a) approve and adopt the merger agreement and the merger; and
 
    (b) approve the New Promus 1997 Equity Participation Plan.
 
TO PROMUS STOCKHOLDERS:
 
    The Promus Board believes that the merger is in your best interest and
recommends that you vote FOR the proposals to:
 
    (a) approve and adopt the merger agreement and the merger; and
 
    (b) approve the New Promus 1997 Equity Participation Plan.
 
                                 VOTES REQUIRED
 
    In order to approve the merger, a majority of the outstanding shares of each
of Doubletree and Promus must vote in favor of approving and adopting the merger
agreement and the merger.
 
    Certain directors and holders of shares of Doubletree common stock who
collectively own more than 39% of the outstanding Doubletree shares have already
agreed to vote their Doubletree shares in favor of the merger. In addition,
other directors and officers of Doubletree who collectively own less than 1% of
the outstanding Doubletree shares, and directors and officers of Promus who
collectively own approximately 4% of the outstanding Promus shares, have
expressed their intent to vote for the merger.
 
    Approval of the New Promus 1997 Equity Participation Plan will require the
affirmative vote of a majority of the shares voted on the matter at each of the
special meetings.
 
                                       3
<PAGE>
                                   THE MERGER
 
    THE MERGER AGREEMENT IS ATTACHED AS ANNEX A TO THIS JOINT PROXY
STATEMENT/PROSPECTUS. WE ENCOURAGE YOU TO READ THE MERGER AGREEMENT AS IT IS THE
LEGAL DOCUMENT THAT GOVERNS THE MERGER.
 
WHAT PROMUS STOCKHOLDERS WILL RECEIVE (SEE PAGE 58)
 
    As a result of the merger, Promus stockholders will receive 0.925 of a share
of New Promus common stock for each share of Promus common stock that they own.
No fractional shares will be issued. Instead, Promus stockholders will receive a
check in payment for any fractional shares based on the market value of the New
Promus common stock.
 
    Promus stockholders should not send in their stock certificates until
instructed to do so after the merger is completed.
 
WHAT DOUBLETREE STOCKHOLDERS WILL RECEIVE
  (SEE PAGE 58)
    As a result of the merger, Doubletree stockholders will receive one share of
New Promus common stock for each share of Doubletree common stock that they own.
    Doubletree stockholders should not send in their stock certificates until
instructed to do so after the merger is completed.
 
OWNERSHIP OF NEW PROMUS FOLLOWING THE MERGER
    Doubletree stockholders will own approximately 46% of the stock of New
Promus after the merger and Promus stockholders will own approximately 54%. On a
pro forma basis giving effect to the merger, approximately 72% of total assets,
72% of revenues and 39% of net income of New Promus as of and for the nine
months ending September 30, 1997 would have been attributable to Doubletree,
with all remaining amounts attributable to Promus.
 
BOARD OF DIRECTORS AND MANAGEMENT OF NEW PROMUS FOLLOWING THE MERGER (SEE PAGE
  57)
 
    If the merger is completed, Raymond E. Schultz, the current President and
Chief Executive Officer of Promus, will become Chief Executive Officer and
Chairman of the Board of New Promus. Richard M. Kelleher, the current President
and Chief Executive Officer of Doubletree, will become the President and Chief
Operating Officer of New Promus. Upon Mr. Schultz's retirement, Mr. Kelleher
will succeed as Chairman of the Board and Chief Executive Officer of New Promus.
 
    The Board of Directors of New Promus initially will consist of 14 members,
half chosen by Doubletree and half chosen by Promus.
 
OTHER INTERESTS OF OFFICERS AND DIRECTORS IN THE MERGER (SEE PAGE 38)
 
    A number of officers and directors of Doubletree and Promus have interests
in the merger that are different from or in addition to your interests. For
example, some officers, including some officers who are also directors, have
severance agreements that entitle them to compensation if they are terminated
after the merger. Doubletree and Promus currently estimate that the aggregate
payments required to be paid under severance agreements to executive officers,
if all such persons were to be terminated after the merger, would be
approximately $10.3 million for Doubletree executive officers and approximately
$14.3 million for Promus executive officers.
 
    A number of officers and directors also have stock options and restricted
stock which will vest as a result of the merger. The aggregate value of stock
options and restricted stock which will vest as a result of the merger is
approximately $10.1 million for executive officers and directors of Doubletree
and approximately $8.7 million for executive officers and directors of Promus.
These amounts are based on the prices of Doubletree and Promus common stock on
October 31, 1997.
 
    For the aggregate value of benefits of each named executive officer and
director of Doubletree and Promus, see the table on page 43.
 
    In addition, several of the executive officers of Doubletree and Promus will
receive new employment contracts that may provide such officers significant
compensation if the merger is consummated. The specific amounts of the salaries
for such officers have not yet been determined.
 
    Please refer to pages 39 through 44 generally for more information
concerning employment arrangements, severance agreements, acceleration
 
                                       4
<PAGE>
of stock options and restricted stock and other arrangements benefitting each
company's officers and directors.
 
CONDITIONS TO THE MERGER (SEE PAGE 66)
 
    The completion of the merger depends upon meeting a number of conditions,
including the following:
 
    (a) the approval of the holders of a majority of the common stock of each of
        Doubletree and Promus;
 
    (b) there shall have been no law enacted or injunction entered which
        effectively prohibits the merger;
 
    (c) the receipt of legal opinions regarding certain tax consequences of the
        merger; and
 
    (d) the receipt of letters from each of our independent accountants stating
        that the merger will qualify for pooling of interests accounting
        treatment.
 
    Certain of the conditions to the merger may be waived by the company
entitled to assert the condition.
 
TERMINATION OF THE MERGER AGREEMENT (SEE PAGE 68)
 
    Doubletree and Promus can agree to terminate the merger agreement without
completing the merger, and either of Doubletree or Promus can terminate the
merger agreement if any of the following occurs:
 
    (a) the merger is not completed by January 31, 1998, but this deadline may
        be extended to March 31, 1998 at the election of either of Doubletree or
        Promus;
 
    (b) the approval of the holders of a majority of the common stock of either
        Doubletree or Promus is not received;
 
    (c) a court or other governmental authority permanently prohibits the
        merger;
 
    (d) the other party breaches or materially fails to comply with any of its
        representations or warranties or obligations under the merger agreement;
 
    (e) the Board of Directors of the other party: (A) withdraws or modifies in
        any adverse manner its approval or recommendation in favor of the
        merger, or (B) approves or recommends a significant transaction with a
        third party; or
 
    (f) the Board of Directors of either company determines, under certain
        circumstances and before the approval of the merger agreement by its
        stockholders, that the Board's fiduciary obligations require acceptance
        of an offer from a third party to enter into a significant transaction.
 
TERMINATION FEES (SEE PAGE 68)
 
    The merger agreement generally requires Doubletree or Promus to pay to the
other a termination fee of $45 million if the merger agreement terminates under
certain circumstances.
 
RECIPROCAL STOCK OPTION AGREEMENTS (SEE PAGES 71 AND 72)
 
    We have both signed reciprocal stock option agreements under which we each
granted an option to the other party to purchase approximately 19.9% of its
outstanding common stock if certain events occur that entitle the party
exercising the option to receive a termination fee under the merger agreement.
The combined value of the termination fee and the stock option is limited to $65
million. These stock option agreements may make it more difficult and expensive
for Doubletree or Promus to consummate an alternative transaction.
 
ACCOUNTING TREATMENT (SEE PAGE 44)
 
    We expect the merger to qualify as a pooling of interests, which means that
we will treat our companies as if they had always been combined for accounting
and financial reporting purposes. We have conditioned the merger on our receipt
of letters from our accountants stating that the merger will qualify for pooling
of interests accounting treatment.
 
OPINIONS OF FINANCIAL ADVISORS
  (SEE PAGES 29 AND 33)
 
    In deciding to approve the merger, our Boards considered opinions from our
respective financial advisors as to the fairness of the exchange ratio from a
financial point of view. Doubletree received an opinion from its financial
advisor, Morgan Stanley & Co. Incorporated, and Promus received an opinion from
its financial advisor, BT Wolfensohn. These opinions are
 
                                       5
<PAGE>
attached as Annexes B and C to this Joint Proxy Statement/Prospectus and you are
encouraged to read them.
 
    The financial advisors performed several analyses in connection with
delivering their opinions. These analyses included comparing Doubletree and
Promus historical stock prices, comparing Doubletree and Promus to other
publicly traded companies, and estimating the relative values of Doubletree and
Promus and their contributions to New Promus based on past and estimated future
financial performance.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES (SEE PAGE 45)
 
    We have structured the merger so that no gain or loss generally should be
recognized for federal income tax purposes on the exchange of shares of
Doubletree and Promus common stock for shares of New Promus common stock. We
have conditioned the merger on our receipt of legal opinions regarding certain
tax consequences of the merger.
 
    Tax matters are very complicated, and the tax consequences of the merger to
you will depend on the facts of your own situation. You should consult your tax
advisor for a full understanding of the tax consequences of the merger to you.
 
NO APPRAISAL RIGHTS (SEE PAGE 48)
 
    Under Delaware law, Doubletree and Promus stockholders have no right to an
appraisal of the value of their shares in connection with the merger.
 
FORWARD-LOOKING STATEMENTS MAY PROVE INACCURATE (SEE PAGE 48)
 
    We have each made forward-looking statements in this document (and in
documents that are incorporated by reference) that are subject to risks and
uncertainties. Forward-looking statements include the information concerning
possible or assumed future results of operations of Doubletree, Promus or New
Promus, including the anticipated synergies from the merger. Also, when we use
words such as "believes," "expects," "anticipates" or similar expressions, we
are making forward-looking statements. Stockholders should note that many
factors could affect the future financial results of New Promus, Doubletree and
Promus, and could cause these results to differ materially from those expressed
in our forward-looking statements. These factors include the following:
 
    - operating, legal and regulatory risks;
 
    - economic, political and competitive forces affecting our businesses;
 
    - the risk that we are unable to achieve the revenue growth and cost savings
      in the amounts and in the time frames contemplated; and
 
    - the risk that our analyses of these risks and forces could be incorrect
      and/or that the strategies developed to address them could be
      unsuccessful.
 
COMPARATIVE MARKET PRICE INFORMATION (SEE PAGE 75)
 
    Shares of Doubletree are listed on the Nasdaq National Market. Shares of
Promus are listed on the New York Stock Exchange and certain other stock
exchanges. On August 29, 1997, the last full trading day prior to the public
announcement of the proposed merger, Doubletree common stock closed at $50.00
per share and Promus common stock closed at $38.81 per share. In the 30 trading
days ending August 29, 1997, the average closing price of Doubletree common
stock was $45.41 and the average closing price of Promus common stock was
$39.43. On November 13, 1997, Doubletree common stock closed at $39.25 per share
and Promus common stock closed at $37.44 per share. We urge you to obtain
current market quotations.
 
LISTING OF NEW PROMUS COMMON STOCK (SEE PAGE 47)
 
    New Promus will list the shares of New Promus common stock to be issued in
the merger on the New York Stock Exchange.
 
THE 1997 EQUITY PARTICIPATION PLAN (SEE PAGE 86)
 
    Doubletree and Promus stockholders also will vote on the 1997 Equity
Participation Plan of New Promus, which will be used following the merger to
grant stock options, restricted stock and other benefits to officers and
employees of New Promus. The 1997 Equity Participation Plan of New Promus is
attached as Annex F to this Joint Proxy Statement/Prospectus and we encourage
you to read the plan in its entirety.
 
                                       6
<PAGE>
                  DOUBLETREE SUMMARY HISTORICAL FINANCIAL DATA
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
    We are providing the following financial information to aid you in your
analysis of the financial aspects of the merger. We derived the historical
information from audited financial statements for 1992 through 1996 and
unaudited financial statements for the nine months ended September 30, 1996 and
1997. The information is only a summary and you should read it in conjunction
with our historical financial statements (and related notes) contained in the
annual reports and other information we have filed with the SEC. See "Where You
Can Find More Information" on page 92.
<TABLE>
<CAPTION>
                                                                                                             NINE MONTHS ENDED
                                                           YEARS ENDED DECEMBER 31,                            SEPTEMBER 30,
                                     --------------------------------------------------------------------  ----------------------
                                        PREDECESSOR(1)                 DOUBLETREE                 PRO         PRO      DOUBLETREE
                                            ACTUAL                       ACTUAL                 FORMA(3)    FORMA(3)     ACTUAL
                                     --------------------  ----------------------------------  ----------  ----------  ----------
                                       1992       1993        1994        1995      1996(2)       1996        1996        1996
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
<S>                                  <C>        <C>        <C>         <C>         <C>         <C>         <C>         <C>
CONSOLIDATED STATEMENT OF
  OPERATIONS DATA:
Revenues:
  Franchise and management fees....  $   8,556  $  10,612  $   26,330  $   30,082  $   38,621  $   49,341  $   37,483  $   28,258
  Owned hotel revenues.............      3,786      9,943          92       7,081      38,350     228,362     171,200       5,972
  Leased hotel revenues............      5,932     14,923      73,769     141,942     205,163     326,594     243,686     137,701
  Purchasing and service fees......         --        329      10,746      16,487      19,848      63,365      51,553      11,800
  Other fees and income............        419      2,547       1,545         994       2,953       3,160       2,030       2,233
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
    Total revenues.................     18,693     38,354     112,482     196,586     304,935     670,822     505,952     185,964
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
Operating costs and expenses:
  General and administrative
    expenses.......................      5,683      7,485      11,879      14,901      18,079      24,882      18,850      12,811
  Owned hotel expenses.............      2,810      6,400         101       6,049      27,889     150,376     112,653       4,740
  Leased hotel expenses............      4,972     14,266      68,981     132,644     190,797     287,584     211,857     127,153
  Purchasing and service
    expenses.......................         --        620       9,807      13,437      14,796      56,066      46,238       8,694
  Depreciation and amortization....        599      1,572       2,943       4,686      12,018      48,358      36,275       4,417
  Business combination expenses....         --      1,865          --       2,565          --          --          --          --
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
    Total operating costs and
      expenses.....................     14,064     32,208      93,711     174,282     263,579     567,266     425,873     157,815
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
Operating income...................      4,629      6,146      18,771      22,304      41,356     103,556      80,079      28,149
    Interest and dividend income...        159        254       1,630       4,147       5,561      11,113       8,473       3,478
    Interest expense...............         --     (1,228)       (831)       (227)     (6,648)    (42,290)    (31,581)       (175)
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
Income before income taxes and
  minority interest................      4,788      5,172      19,570      26,224      40,269      72,379      56,971      31,452
  Minority interest share of net
    (income) loss..................       (372)       175          --          35        (373)     (1,726)     (1,347)          6
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
Income before income taxes.........      4,416      5,347      19,570      26,259      39,896      70,653      55,624      31,458
  Income tax expense...............        (65)      (414)     (6,335)     (8,468)    (13,962)    (29,393)     23,140     (11,011)
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
Net income.........................  $   4,351  $   4,933  $   13,235  $   17,791  $   25,934  $   41,260  $   32,484  $   20,447
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
                                     ---------  ---------  ----------  ----------  ----------  ----------  ----------  ----------
Earnings per share.................                        $     0.66  $     0.80  $     1.01  $     1.04  $     0.82  $     0.88
                                                           ----------  ----------  ----------  ----------  ----------  ----------
                                                           ----------  ----------  ----------  ----------  ----------  ----------
Weighted average shares
  outstanding......................                            20,071      22,219      25,766      39,834      39,662      23,183
                                                           ----------  ----------  ----------  ----------  ----------  ----------
                                                           ----------  ----------  ----------  ----------  ----------  ----------
 
<CAPTION>
 
                                      1997(4)
                                     ----------
<S>                                  <C>
CONSOLIDATED STATEMENT OF
  OPERATIONS DATA:
Revenues:
  Franchise and management fees....  $   43,145
  Owned hotel revenues.............     181,526
  Leased hotel revenues............     314,945
  Purchasing and service fees......      25,860
  Other fees and income............      18,890
                                     ----------
    Total revenues.................     584,366
                                     ----------
Operating costs and expenses:
  General and administrative
    expenses.......................      23,996
  Owned hotel expenses.............     112,156
  Leased hotel expenses............     276,203
  Purchasing and service
    expenses.......................      19,028
  Depreciation and amortization....      36,611
  Business combination expenses....          --
                                     ----------
    Total operating costs and
      expenses.....................     467,994
                                     ----------
Operating income...................     116,372
    Interest and dividend income...       8,761
    Interest expense...............     (32,655)
                                     ----------
Income before income taxes and
  minority interest................      92,478
  Minority interest share of net
    (income) loss..................      (2,504)
                                     ----------
Income before income taxes.........      89,974
  Income tax expense...............      34,456
                                     ----------
Net income.........................  $   55,518
                                     ----------
                                     ----------
Earnings per share.................  $     1.37
                                     ----------
                                     ----------
Weighted average shares
  outstanding......................      40,524
                                     ----------
                                     ----------
</TABLE>
 
                                       7
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                     AS OF
                                                                                                                   SEPTEMBER
                                                                           AS OF DECEMBER 31,                         30,
                                                       ----------------------------------------------------------  ----------
                                                         1992       1993        1994        1995         1996         1996
                                                       ---------  ---------  ----------  ----------  ------------  ----------
<S>                                                    <C>        <C>        <C>         <C>         <C>           <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents............................  $   5,741  $   6,826  $   23,169  $   32,652  $     25,588  $   50,701
Total assets.........................................     22,368     89,072     134,701     163,107     1,730,949     229,987
Long-term debt, net of current portion...............      5,736     25,000          --          --       545,492          --
Stockholders' equity.................................      9,773     13,645      91,587     114,386       801,530     162,647
 
<CAPTION>
 
                                                           1997
                                                       ------------
<S>                                                    <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents............................  $     16,277
Total assets.........................................     1,746,322
Long-term debt, net of current portion...............       437,817
Stockholders' equity.................................       859,840
</TABLE>
 
- --------------------------
 
(1) The 1992 historical financial data for Samantha Hotel Corporation,
    Doubletree's predecessor (the "Predecessor"), include only the operations of
    Guest Quarters Hotel Partnership ("GQHP"). From January 1, 1993 to December
    16, 1993, the historical financial data for the Predecessor include the
    operations of GQHP and RFS, Inc. ("RFS"), and subsequent to such date
    include the combined operations of GQHP, RFS and Doubletree Hotels
    Corporation.
 
(2) Includes the operating results of Red Lion Hotels, Inc. (Red Lion) for the
    period commencing November 8, 1996 through December 31, 1996.
 
(3) Pro forma adjustments have been made to give effect to the acquisition of
    Red Lion and related transactions as if each had occurred on January 1,
    1996.
 
(4) During the nine months ended September 30, 1997 Doubletree realized three
    unusual items: (1) a break-up fee of $10.9 million (net of expenses) related
    to the terminated Renaissance Hotel Group transaction, (2) a $3.0 million
    gain from the sale of the Company's management rights for a hotel under
    development, and (3) $5.5 million of expenses for the establishment of
    long-term compensation plans for senior management. These items contributed
    $5.2 million and $0.13, respectively, to net income and earnings per share
    for the nine months ended September 30, 1997.
 
                                       8
<PAGE>
                    PROMUS SUMMARY HISTORICAL FINANCIAL DATA
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
    We are providing the following financial information to aid you in your
analysis of the financial aspects of the merger. We derived this information
from audited financial statements for 1992 through 1996 and unaudited financial
statements for the nine months ended September 30, 1996 and 1997. The
information is only a summary and you should read it in conjunction with our
historical financial statements (and related notes) contained in the annual
reports and other information we have filed with the SEC. See "Where You Can
Find More Information" on page 92.
 
<TABLE>
<CAPTION>
                                                                                                          NINE MONTHS
                                                          YEARS ENDED DECEMBER 31,                    ENDED SEPTEMBER 30,
                                         ----------------------------------------------------------  ----------------------
                                            1992        1993        1994        1995        1996        1996        1997
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
<S>                                      <C>         <C>         <C>         <C>         <C>         <C>         <C>
Consolidated Statement of Income Data:
Revenues
  Company owned hotels
    Rooms..............................  $  124,192  $  121,104  $  110,205  $  116,094  $  121,000  $   93,360  $   90,630
    Food and beverage..................       8,310       8,094       8,001       7,180       6,353       4,632       4,460
    Other..............................       7,250       7,207       6,879       6,805       7,190       5,530       5,226
  Franchise and management fees........      51,655      60,359      76,874      79,935     101,653      77,040      96,666
  Other................................      15,106      17,801      20,602      26,499      30,429      23,777      23,434
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
    Total revenues.....................     206,513     214,565     222,561     236,513     266,625     204,339     220,416
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Operating Expenses
  Company owned hotels
    Rooms..............................      71,191      65,529      56,952      56,228      58,823      44,870      42,739
    Food and beverage..................       8,696       8,235       7,760       6,832       5,982       4,373       4,113
    Other..............................      13,984      13,488      12,547      12,946      12,452       9,604       9,378
  Depreciation expense.................      20,122      20,244      18,829      20,890      22,246      16,793      16,367
  General and administrative
    expenses(a)........................      42,910      42,311      34,711      37,969      43,248      31,375      35,057
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
    Total operating expenses...........     156,903     149,807     130,799     134,865     142,751     107,015     107,654
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Property transactions..................      (5,713)      1,345         626       1,942       4,967       3,939      30,508
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Operating income.......................      43,897      66,103      92,388     103,590     128,841     101,263     143,270
Interest expense, net of interest
  capitalized(b).......................     (40,674)    (33,061)    (30,759)    (31,138)    (29,016)    (22,409)    (18,608)
Dividend income........................          --          --          --         547       5,713       3,982       3,924
Interest and other income..............          19      (2,247)      1,488       2,580       4,350       3,033      15,006
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Income before income taxes and
  extraordinary items..................       3,242      30,795      63,117      75,579     109,888      85,869     143,592
Provision for income taxes.............      (1,401)    (13,869)    (26,798)    (31,819)    (45,164)    (35,292)    (56,575)
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Income before extraordinary items......       1,841      16,926      36,319      43,760      64,724      50,577      87,017
Extraordinary items, net of income
  tax..................................       4,520          --          --       2,819          --          --          --
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Net income.............................  $    6,361  $   16,926  $   36,319  $   46,579  $   64,724  $   50,577  $   87,017
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
                                         ----------  ----------  ----------  ----------  ----------  ----------  ----------
Earnings per share.....................          (c)         (c)         (c)         (c) $     1.25  $     0.98  $     1.69
                                                                                         ----------  ----------  ----------
                                                                                         ----------  ----------  ----------
Weighted average shares outstanding....          (c)         (c)         (c)         (c)     51,690      51,659      51,441
                                                                                         ----------  ----------  ----------
                                                                                         ----------  ----------  ----------
</TABLE>
 
                                       9
<PAGE>
 
<TABLE>
<CAPTION>
                                                         AS OF DECEMBER 31,                    AS OF SEPTEMBER 30,
                                        -----------------------------------------------------  --------------------
                                          1992       1993       1994       1995       1996       1996       1997
                                        ---------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                                     <C>        <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents.............  $   2,243  $   3,657  $   2,221  $   2,668  $   3,700  $   5,549  $   3,781
Total assets..........................    506,111    438,016    413,308    519,809    631,965    604,049    650,538
Long-term debt, net of current
  portion(b)..........................    216,386    172,326    188,725    229,479    243,682    248,160    213,237
Stockholders' equity..................    212,229    180,522    143,088    167,367    248,089    228,438    277,701
</TABLE>
 
- ------------------------------
 
(a) The Promus historical operating results before June 30, 1995, do not reflect
    any incremental costs expected to be incurred by Promus to support its
    operations as a stand-alone entity.
 
(b) The financial information presented for periods prior to June 30, 1995
    includes certain allocations for overhead expenses from Promus Parent. In
    anticipation of the retirement of a portion of Promus Parent's outstanding
    debt using proceeds drawn under a new Promus bank facility, a pro-rata
    portion of Promus Parent's historical outstanding debt balance, unamortized
    deferred finance charges and interest expense was allocated to Promus. These
    allocations were based on the percentage of Promus Parent's existing debt
    expected to be retired using proceeds to be drawn under the new Promus bank
    facility.
 
(c) Not applicable for periods prior to the June 30, 1995 spin-off of Promus by
    The Promus Companies Incorporated ("Promus Parent"). On such date, Promus
    Parent completed the spin-off of its hotel business to Promus.
 
                                       10
<PAGE>
                       UNAUDITED PRO FORMA FINANCIAL DATA
                     (IN THOUSANDS, EXCEPT PER SHARE DATE)
 
    We expect that the merger will be accounted for as a "pooling of interests,"
which means that for accounting and financial reporting purposes we will treat
our companies as if they had always been combined. For a more detailed
description of pooling of interests accounting see "The Merger-- Accounting
Treatment of the Merger" on page 44.
 
    We have presented below unaudited pro forma consolidated financial
information that reflects the pooling of interests method of accounting and is
intended to give you a better picture of what our businesses might have looked
like had they always been combined. We prepared the pro forma income statement
and summary balance sheet data by adding or combining the historical amounts of
each company. We then reclassified certain of the combined amounts to achieve a
consistent presentation. The companies may have performed differently if they
were combined. You should not rely on the pro forma information as being
indicative of the historical results that we would have had or the future
results that we will experience after the merger. See "Unaudited Pro Forma
Financial Information" on page 76.
 
<TABLE>
<CAPTION>
                                                                                             NINE MONTHS ENDED
                                                              YEARS ENDED DECEMBER 31,         SEPTEMBER 30,
                                                           -------------------------------  --------------------
                                                             1994       1995      1996(3)    1996(3)    1997(1)
                                                           ---------  ---------  ---------  ---------  ---------
<S>                                                        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA(4):
Revenues:
  Franchise and management fees..........................  $ 104,040  $ 110,350  $ 140,768  $ 105,607  $ 140,695
  Owned hotel revenues...................................    125,177    137,160    172,893    109,494    281,842
  Leased hotel revenues..................................     73,769    141,942    205,163    137,701    314,945
  Purchasing and service fees............................      3,624      6,112      9,867      6,486     12,622
  Other fees and income..................................     20,045     26,265     31,522     23,414     44,162
                                                           ---------  ---------  ---------  ---------  ---------
    Total revenues.......................................    326,655    421,829    560,213    382,702    794,266
                                                           ---------  ---------  ---------  ---------  ---------
Operating costs and expenses:
  General and administrative expenses....................     46,013     52,952     62,638     44,886     61,283
  Owned hotel expenses...................................     77,360     82,055    105,146     63,587    168,386
  Leased hotel expenses..................................     68,981    132,644    190,797    127,153    276,203
  Depreciation and amortization..........................     24,603     27,759     36,276     22,719     54,094
  Business combination expenses..........................         --      2,565         --         --         --
                                                           ---------  ---------  ---------  ---------  ---------
    Total operating costs and expenses...................    216,957    297,975    394,857    258,345    559,966
                                                           ---------  ---------  ---------  ---------  ---------
    Operating income.....................................    109,698    123,854    165,356    124,357    234,300
                                                           ---------  ---------  ---------  ---------  ---------
  Interest and dividend income...........................      3,210      7,551     17,175     11,618     17,776
  Interest expense.......................................    (32,011)   (31,818)   (36,647)   (22,883)   (54,326)
  Gain on sale of real estate and securities.............      1,882      2,334      4,439      4,387     38,482
                                                           ---------  ---------  ---------  ---------  ---------
    Income before income taxes, minority interest and
      extraordinary items................................     82,779    101,921    150,323    117,479    236,232
 
Minority interest share of net income....................        (92)       (83)      (539)      (152)    (2,666)
                                                           ---------  ---------  ---------  ---------  ---------
Income before income taxes and extraordinary item........     82,687    101,838    149,784    117,327    233,566
    Income tax expense...................................    (33,133)   (40,287)   (59,126)   (46,303)   (91,031)
                                                           ---------  ---------  ---------  ---------  ---------
 
Income before extraordinary item.........................  $  49,554  $  61,551  $  90,658  $  71,024  $ 142,535
                                                           ---------  ---------  ---------  ---------  ---------
                                                           ---------  ---------  ---------  ---------  ---------
Earnings per share before extraordinary item.............  $    0.73  $    0.88  $    1.23  $    1.00  $    1.62
                                                           ---------  ---------  ---------  ---------  ---------
                                                           ---------  ---------  ---------  ---------  ---------
Weighted average shares outstanding(2)...................     67,776     69,920     73,579     70,968     88,107
                                                           ---------  ---------  ---------  ---------  ---------
                                                           ---------  ---------  ---------  ---------  ---------
</TABLE>
 
                                       11
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                             AS OF SEPTEMBER 30,
                                                                                                    1997
                                                                                           -----------------------
<S>                                                                                        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and cash equivalents................................................................       $      20,058
Total assets.............................................................................           2,396,860
Long-term debt, net of current portion...................................................             651,054
Stockholders' equity.....................................................................           1,137,541
</TABLE>
 
- ------------------------
 
(1) During the nine months ended September 30, 1997, Doubletree and Promus each
    experienced certain unusual items. Doubletree realized a $10.9 million
    breakup fee, net of expenses, from the terminated Renaissance Hotel Group
    transaction, $3.0 million from the sale of its management rights for a hotel
    under development in Atlantic City and $5.5 million of expenses for the
    establishment of long-term compensation plans for senior management. Promus
    recognized a gain on the sale of real estate and a common stock investment
    of $38.5 million and a gain of $3.2 million on the disposition of certain
    joint venture investments. The effect of these transactions, net of taxes,
    was to increase pro forma net income by approximately $30.5 million and to
    increase pro forma earnings per share by approximately $0.35.
 
(2) Combined weighted average shares outstanding have been derived from each
    company's historical weighted average outstanding shares adjusted for the
    exchange ratio. Promus's weighted average shares outstanding for periods
    prior to the spin-off are assumed to be equal to the actual common and
    common equivalent shares outstanding on June 30, 1995.
 
(3) Doubletree acquired Red Lion Hotels, Inc. on November 8, 1996 in a
    transaction accounted for as a purchase. The following pro forma summary
    presents the combined results of Doubletree and Promus as if the Red Lion
    acquisition had occurred on January 1, 1996. The weighted average shares
    outstanding assumes that 16.4 million shares issued in connection with the
    Red Lion acquisition were issued on January 1, 1996.
 
<TABLE>
<CAPTION>
                                                           YEAR ENDED      NINE MONTHS ENDED
                                                        DECEMBER 31, 1996  SEPTEMBER 30, 1996
                                                        -----------------  ------------------
<S>                                                     <C>                <C>
Total revenues........................................     $   890,552         $  668,937
Operating income......................................         230,445            178,813
Income before income taxes............................         180,541            141,493
Net income............................................         105,984             83,061
Earnings per share....................................            1.21               0.95
Weighted average shares outstanding...................          87,647             87,447
</TABLE>
 
(4) Doubletree and Promus expect to incur expenses in the fourth quarter of 1997
    related to the Merger of approximately $105.0 million. These costs will
    include approximately $25.5 million of legal, professional and accounting
    fees and due diligence costs, approximately $48.2 million of severance,
    relocation and certain other costs necessary to complete the transaction and
    the write-off of approximately $26.2 million of deferred financing costs and
    other assets whose benefit will not be realized after the Merger. Payments
    for these costs are expected to commence during the fourth quarter of 1997
    and are expected to continue during the first nine months of 1998. No such
    costs are reflected in the pro forma Consolidated Statement of Operations
    Data presented above.
 
                                       12
<PAGE>
          COMPARATIVE HISTORICAL AND PRO FORMA COMBINED PER SHARE DATA
 
    The following table sets forth information on the income from continuing
operations (before extraordinary item), book value and dividends declared per
common share for our respective companies on a historical, pro forma combined
and pro forma equivalent basis. The Pro Forma Promus Equivalent amounts were
calculated by multiplying the Pro Forma Combined per share amounts by 0.925.
Promus stockholders will receive 0.925 of a share of New Promus common stock in
exchange for each share of Promus common stock.
 
<TABLE>
<CAPTION>
                                              HISTORICAL
                                       ------------------------   PRO FORMA   PRO FORMA DOUBLETREE    PRO FORMA PROMUS
                                       DOUBLETREE     PROMUS      COMBINED         EQUIVALENT            EQUIVALENT
                                       -----------  -----------  -----------  ---------------------  -------------------
<S>                                    <C>          <C>          <C>          <C>                    <C>
COMPARATIVE PER SHARE DATA:
Income per share from continuing
  operations (before extraordinary
  item):
  Year ended December 31, 1994.......   $    0.66    $    0.70(1)  $    0.73        $    0.73             $    0.68
  Year ended December 31, 1995.......        0.80         0.85(1)       0.88             0.88                  0.81
  Year ended December 31, 1996.......        1.01         1.25         1.23              1.23                  1.14
  Nine months ended September 30,
    1997.............................        1.37         1.69         1.62              1.62                  1.50
 
Book value per share:
  December 31, 1996..................       20.26         4.83        12.05             12.05                 11.15
  September 30, 1997.................       21.66         5.56        13.24             13.24                 12.25
Cash dividends declared per share:
  Year ended December 31, 1994.......          --           --           --                --                    --
  Year ended December 31, 1995.......          --           --           --                --                    --
  Year ended December 31, 1996.......          --           --           --                --                    --
  Nine months ended September 30,
    1997.............................          --           --           --                --                    --
</TABLE>
 
(1) For purposes of computing earnings per share on a comparable basis, the
    weighted average shares outstanding for periods prior to the June 30, 1995
    spin-off of Promus by its parent company are assumed to be equal to the
    actual common and common equivalent shares outstanding on June 30, 1995.
 
                                       13
<PAGE>
                                  RISK FACTORS
 
    IN ADDITION TO GENERAL INVESTMENT RISKS AND THOSE FACTORS SET FORTH
ELSEWHERE HEREIN (INCLUDING UNDER THE CAPTION "THE MERGER--CAUTIONARY STATEMENT
CONCERNING FORWARD-LOOKING STATEMENTS"), THE FOLLOWING RISKS SHOULD BE
CONSIDERED BY STOCKHOLDERS OF DOUBLETREE CORPORATION ("DOUBLETREE") AND PROMUS
HOTEL CORPORATION ("PROMUS") IN DECIDING WHETHER TO APPROVE AND ADOPT THE MERGER
AGREEMENT, PURSUANT TO WHICH DOUBLETREE AND PROMUS WILL MERGE AND BECOME
SUBSIDIARIES OF A NEWLY-FORMED CORPORATION ("NEW PROMUS").
 
RISKS RELATING TO THE MERGER
 
    RISKS ASSOCIATED WITH THE INTEGRATION OF THE TWO COMPANIES.  The merger
involves the integration of two companies that have previously operated
independently. We cannot assure that New Promus will be able to integrate the
respective operations of Doubletree and Promus without encountering
difficulties. Such difficulties could include integrating different business
strategies with respect to franchising, managing, owning and leasing hotels and
integrating personnel with disparate business backgrounds and corporate
cultures. New Promus may also lose key Doubletree or Promus personnel due to the
merger and the relocation of Doubletree's corporate offices to New Promus's
headquarters. We cannot assure whether and to what extent the integration and
consolidation will achieve cost savings and operating synergies.
 
    RISKS ASSOCIATED WITH FIXED EXCHANGE RATIOS.  Upon completion of the merger,
each share of Doubletree common stock will be converted into the right to
receive one share of New Promus common stock and each share of Promus Common
Stock will be converted into the right to receive 0.925 of a share of New Promus
common stock. The exchange ratios for both Doubletree and Promus are fixed
numbers and will not be adjusted in the event of any increase or decrease in the
price of either Doubletree common stock or Promus common stock. As a result, the
value of the shares of New Promus common stock received by Doubletree and Promus
stockholders in the merger could vary depending on fluctuations in the value of
Doubletree common stock or Promus common stock. Such fluctuations may be the
result of changes in business, operations or prospects of Doubletree, Promus or
New Promus, market assessments of the likelihood that the merger will be
consummated, the timing thereof, and the prospects of Doubletree, Promus or New
Promus, regulatory considerations, general market and economic conditions and
other factors. Accordingly, there can be no assurance that the value of the
merger consideration on the date of this Joint Proxy Statement/Prospectus will
be the same as on the date of the special meetings of the stockholders of
Doubletree and Promus or the effective time of the merger.
 
RISKS RELATING TO THE BUSINESS OF NEW PROMUS
 
    COMPETITION.  New Promus's managed and franchised hotel will be in
competition for guests with a wide range of lodging facilities offering
full-service, limited-service and all-suite lodging options to the public.
Competitive factors in the lodging industry include room rates, quality of
accommodations, name recognition, service levels and convenience of location. We
cannot assure that new or existing competitors will not significantly expand or
improve facilities in a market in which New Promus's hotels compete, thereby
adversely affecting New Promus's operations. New Promus also will compete for
management contracts, leases and franchise agreements with other hotel
management companies and national brand franchisers. Some of the larger hotel
chains with which New Promus will compete include Marriott, Sheraton, Hyatt,
Hilton, Westin and Wyndham. In addition, many of New Promus's competitors will
be hotel management companies that do not have their own brand. We cannot assure
that New Promus will be successful in retaining current, or competing for
additional, management contractors, leases or franchise agreements.
 
    RISKS ASSOCIATED WITH OWNING AND LEASING REAL ESTATE.  After the merger, New
Promus will own and lease hotels. New Promus will be subject to varying degrees
of risk generally related to leasing and owning real estate. In addition to
general risks related to the lodging industry, these risks include, among
others, liability for long-term lease obligations, changes in national, regional
and local economic conditions, local real estate market conditions, changes in
interest rates and in the availability, cost and terms of financing,
 
                                       14
<PAGE>
the potential for uninsured casualty and other losses, the impact of present or
future environment legislation and compliance with environmental laws (as
discussed below), and adverse changes in zoning laws and other regulations, many
of which are beyond the control of New Promus. Moreover, real estate investments
are relatively illiquid, which means that the ability of New Promus to vary its
portfolio of hotels in response to changes in economic and other conditions may
be limited.
 
    Under various federal, state, and local environmental laws, ordinances and
regulations, a current or previous owner or operator of real property may be
liable for the costs of removal or remediation of hazardous or toxic substances
on, under or in such property. Such laws often impose liability whether or not
the owner or operator knew of, or was responsible for the presence of such
hazardous or toxic substances. For example, liability may arise as a result of
the historical use of a site or from the migration of contamination from
adjacent or nearby properties. Any such contamination or liability may also
reduce the value of the property. In addition, certain environmental laws and
common law principles could be used to impose liability for release of
asbestos-containing materials into the air, and third parties may seek recovery
from owners or operators of real properties for personal injury associated with
exposure to such materials. In connection with the ownership or operation of
hotels, including properties managed, leased or franchised by Doubletree or
Promus, New Promus may be potentially liable for any such costs. We cannot
assure that the current conditions at Doubletree's or Promus's properties have
not been or will not be affected by the historical or current uses of such
properties, or that the activities in the vicinity of such properties or the
potential liability resulting from non-compliance or other claims relating to
environmental matters will not have a material adverse effect on New Promus.
 
    FLUCTUATIONS IN OPERATING RESULTS.  The lodging industry may be adversely
affected by changes in economic conditions, changes in local market conditions,
oversupply of hotel space, a reduction in demand for hotel space in specific
areas, changes in travel patterns, extreme weather conditions, changes in
governmental regulations that influence or determine wages, prices or
construction costs, changes in interest rates, the availability of financing for
operating or capital needs, and changes in real estate tax rates and other
operating expenses. Room supply and demand historically have been sensitive to
shifts in GNP growth, which has resulted in cyclical changes in average daily
room and occupancy rates. Due in part to the strong correlation between the
lodging industry's performance and economic conditions, the lodging industry is
subject to cyclical changes in revenues. Furthermore, the lodging industry is
seasonal in nature, with revenues and profitability typically higher in summer
periods than in winter periods.
 
    GOVERNMENT REGULATION.  The hotel industry is subject to numerous federal,
state and local government regulations, including those relating to the
preparation and sale of food and beverages (such as health and liquor license
laws) and building and zoning requirements. Also, New Promus and its customers
are subject to laws governing their relationships with employees, including
minimum wage requirements, overtime, working conditions and work permit
requirements. New Promus will also be subject to federal regulations and certain
state laws that govern the offer and sale of franchises, including certain state
laws that require approvals before franchises can be offered or sold in that
state. The failure to obtain or retain liquor licenses or approvals to sell
franchises, or an increase in the minimum wage rate, employee benefit costs or
other costs associated with employees, could adversely affect New Promus.
 
    Under the Americans with Disabilities Act of 1990 (the "ADA"), all public
accommodations are required to meet certain federal requirements related to
access and use by disabled persons. We believe that the hotels that we own or
that are under our management are substantially in compliance with these
requirements. However, a determination that such hotels are not in compliance
with the ADA could result in the imposition of fines, an award of damages to
private litigants or significant expense to New Promus in bringing these hotels
into compliance.
 
                                       15
<PAGE>
                         THE DOUBLETREE SPECIAL MEETING
 
GENERAL
 
    This Joint Proxy Statement/Prospectus is being furnished to stockholders of
Doubletree as part of the solicitation of proxies by the Doubletree Board of
Directors for use at a Special Meeting of Stockholders of Doubletree (the
"Doubletree Special Meeting") to be held on December 18, 1997 at 10:00 a.m.
local time, at the Doubletree Paradise Valley Resort, 5401 North Scottsdale
Road, Scottsdale, Arizona. This Joint Proxy Statement/Prospectus and the
enclosed form of proxy are first being mailed to stockholders of Doubletree on
or about November 18, 1997.
 
    The purpose of the Doubletree Special Meeting is:
 
        (a) to consider and vote on a proposal to approve and adopt an Agreement
    and Plan of Merger dated September 1, 1997 (the "Merger Agreement") by and
    among Promus, Doubletree, and Parent Holding Corp., a newly-formed
    corporation jointly owned by Doubletree and Promus ("New Promus"), pursuant
    to which, among other things, (i) a newly-formed wholly-owned subsidiary of
    New Promus ("Doubletree Sub") will merge with and into Doubletree (the
    "Doubletree Merger"), with Doubletree surviving and becoming a wholly-owned
    subsidiary of New Promus, (ii) each issued and outstanding share of
    Doubletree common stock, par value $.01 per share ("Doubletree Common
    Stock"), will be converted into the right to receive one fully paid and
    nonassessable share of common stock, par value $.01 per share, of New Promus
    ("New Promus Common Stock"), (iii) a second newly-formed wholly-owned
    subsidiary of New Promus ("Promus Sub") will merge with and into Promus (the
    "Promus Merger," and together with the Doubletree Merger, the "Merger") with
    Promus surviving and becoming a wholly-owned subsidiary of New Promus and
    (iv) each issued and outstanding share of Promus common stock, par value
    $.10 per share ("Promus Common Stock"), will be converted into the right to
    receive 0.925 of a fully paid and nonassessable share of New Promus Common
    Stock;
 
        (b) to consider and vote on a proposal to approve and adopt a plan to
    permit the grant of stock options and other stock awards to employees,
    directors, and consultants of New Promus and its subsidiaries under the 1997
    Equity Participation Plan of New Promus (the "New Promus Equity
    Participation Plan"); and
 
        (c) to transact such other business that may properly come before the
    Doubletree Special Meeting.
 
    Each copy of this Joint Proxy Statement/Prospectus mailed to holders of
Doubletree Common Stock is accompanied by a form of proxy for use at the
Doubletree Special Meeting.
 
    The Board of Directors of Doubletree recommends that stockholders vote FOR
the approval and adoption of the Merger Agreement and the New Promus Equity
Participation Plan.
 
RECORD DATE AND VOTING
 
    Doubletree has fixed the close of business on October 31, 1997 as the record
date for the determination of the Doubletree stockholders entitled to notice of
and to vote at the Doubletree Special Meeting. Accordingly, only holders of
record of Doubletree Common Stock on the record date will be entitled to notice
of and to vote at the Doubletree Special Meeting. As of October 31, 1997, there
were outstanding and entitled to vote 39,760,058 shares of Doubletree Common
Stock (constituting all of the voting stock of Doubletree), which shares were
held by approximately 453 holders of record. Each holder of record of shares of
Doubletree Common Stock on the record date is entitled to one vote per share,
which may be cast either in person or by properly executed proxy, at the
Doubletree Special Meeting. The presence, in person or by properly executed
proxy, of the holders of a majority of the outstanding shares of Doubletree
 
                                       16
<PAGE>
Common Stock entitled to vote at the Doubletree Special Meeting is necessary to
constitute a quorum at the Doubletree Special Meeting.
 
    The approval of the Merger Agreement and the transactions contemplated
thereby will require the affirmative vote of the holders of a majority of the
shares of Doubletree Common Stock outstanding on the record date. The approval
of the New Promus Equity Participation Plan will require the affirmative vote of
the holders of shares of Doubletree Common Stock representing a majority of the
votes cast on the matter, provided that the total votes cast on the matter
represent over 50% in interest of all shares entitled to vote on the matter.
 
    Shares of Doubletree Common Stock represented in person or by proxy will be
counted for the purposes of determining whether a quorum is present at the
Doubletree Special Meeting. Shares which abstain from voting as to a particular
matter will be treated as shares that are present and entitled to vote at the
Doubletree Special Meeting for purposes of determining whether a quorum exists,
but will not be counted as votes cast on such matter. If a broker or nominee
holding stock in "street name" indicates on a proxy that it does not have
discretionary authority to vote as to a particular matter ("broker non-votes"),
those shares will be treated as present and entitled to vote at the Doubletree
Special Meeting for purposes of determining whether a quorum exists, but will
not be counted as votes cast on such matter. Accordingly, abstentions and broker
non-votes will have the same effect as votes against approval of the Merger
Agreement, and may have the same effect as votes against approval of the New
Promus Equity Participation Plan if they result in a failure of the total votes
cast on the matter to represent over 50% in interest of all shares of Doubletree
Common Stock entitled to vote on the matter.
 
    Holders of an aggregate of 15,671,069 shares of Doubletree Common Stock (the
"Key Stockholders"), representing over 39% of the outstanding shares of
Doubletree Common Stock as of the record date for the Doubletree Special
Meeting, have entered into a Stockholder Support Agreement (the "Stockholder
Support Agreement") with Promus pursuant to which such holders have agreed,
among other things, to vote their shares of Doubletree Common Stock in favor of
the Merger Agreement. See "Other Agreements--Stockholder Support Agreement." As
of the record date for the Doubletree Special Meeting, directors and executive
officers of Doubletree and their affiliates may be deemed to be beneficial
owners of an additional approximately 1% of the outstanding shares of Doubletree
Common Stock (excluding shares covered by the Stockholder Support Agreement) and
have expressed their intent to vote their shares in favor of the Merger
Agreement.
 
VOTING AND REVOCATION OF PROXIES
 
    All shares of Doubletree Common Stock which are entitled to vote and are
represented at the Doubletree Special Meeting by properly executed proxies
received prior to or at such Meeting, and not revoked, will be voted at such
Meeting in accordance with the instructions indicated on such proxies. If no
instructions are indicated (other than in the case of broker non-votes), such
proxies will be voted for approval and adoption of the Merger Agreement and the
New Promus Equity Participation Plan.
 
    The Doubletree Board of Directors does not know of any matters other than
those described in the notice of the Doubletree Special Meeting that are to come
before such Meeting. If any other matters are properly presented at the
Doubletree Special Meeting for consideration, including, among other things,
consideration of a motion to adjourn such meeting to another time and/or place
(including, without limitation, for the purposes of soliciting additional
proxies or allowing additional time for the satisfaction of conditions to the
Merger), the persons named in the enclosed forms of proxy and acting thereunder
generally will have discretion to vote on such matters in accordance with their
best judgment. Notwithstanding the foregoing, proxies voting against a specific
proposal may not be used by the persons named in the proxies to vote for
adjournment of the meeting for the purpose of giving management additional time
to solicit votes to approve such proposal.
 
                                       17
<PAGE>
    Any proxy given pursuant to this solicitation may be revoked by the person
giving it at any time before it is voted. Proxies may be revoked by (i) filing
with the Secretary of Doubletree, at or before the taking of the vote at the
Doubletree Special Meeting, a written notice of revocation bearing a later date
than the proxy, (ii) duly executing a later dated proxy relating to the same
shares and delivering it to the Secretary of Doubletree before the taking of the
vote at the Doubletree Special Meeting or (iii) attending the Doubletree Special
Meeting and voting in person (although attendance at the Doubletree Special
Meeting will not in and of itself constitute a revocation of a proxy). Any
written notice of revocation or subsequent proxy should be sent to Doubletree
Corporation, 410 North 44th Street, Suite 700, Phoenix, Arizona 85008,
Attention: Secretary, or hand delivered to the Secretary of Doubletree at or
before the taking of the vote at the Doubletree Special Meeting.
 
    All expenses of Doubletree's solicitation of proxies for the Doubletree
Special Meeting will be borne by Doubletree, except that the cost of preparing
and mailing this Joint Proxy Statement/Prospectus will be borne equally by
Doubletree and Promus. In addition to solicitation by use of the mails, proxies
may be solicited from Doubletree stockholders by directors, officers and
employees of Doubletree in person or by telephone, telegram or other means of
communication. Such directors, officers and employees will not be additionally
compensated, but may be reimbursed for reasonable out-of-pocket expenses in
connection with such solicitation. Doubletree has retained D.F. King & Co.,
Inc., a proxy solicitation firm, for assistance in connection with the
solicitation of proxies for the Doubletree Special Meeting at a cost of
approximately $10,000 plus reimbursement of reasonable out-of-pocket expenses.
Arrangements will also be made with brokerage houses, custodians, nominees and
fiduciaries for forwarding of proxy solicitation materials to beneficial owners
of shares held of record by such brokerage houses, custodians, nominees and
fiduciaries, and Doubletree will reimburse such brokerage houses, custodians,
nominees and fiduciaries for their reasonable expenses incurred in connection
therewith.
 
    STOCKHOLDERS SHOULD NOT SEND STOCK CERTIFICATES WITH THEIR PROXIES.
DOUBLETREE COMMON STOCK CERTIFICATES WILL BE EXCHANGED FOR SHARES OF NEW PROMUS
COMMON STOCK FOLLOWING CONSUMMATION OF THE MERGER IN ACCORDANCE WITH
INSTRUCTIONS TO BE SENT TO HOLDERS OF DOUBLETREE COMMON STOCK AFTER THE MERGER.
 
                           THE PROMUS SPECIAL MEETING
 
GENERAL
 
    This Joint Proxy Statement/Prospectus is being furnished to stockholders of
Promus as part of the solicitation of proxies by the Promus Board of Directors
for use at the Special Meeting of Stockholders of Promus (the "Promus Special
Meeting") to be held on December 18, 1997 at 10:00 a.m. local time, at the
Embassy Hall, Embassy Suites Hotel, 1022 South Shady Grove Road, Memphis,
Tennessee. This Joint Proxy Statement/Prospectus and the enclosed form of proxy
are first being mailed to stockholders of Promus on or about November 18, 1997.
 
    The purpose of the Promus Special Meeting is:
 
        (a) to consider and vote on a proposal to approve and adopt the Merger
    Agreement, pursuant to which, among other things, (i) Promus Sub will merge
    with and into Promus with Promus surviving the Promus Merger and becoming a
    wholly-owned subsidiary of New Promus, (ii) each issued and outstanding
    share of Promus Common Stock will be converted into the right to receive
    0.925 of a fully paid and nonassessable share of New Promus Common Stock,
    (iii) Doubletree Sub will merge with and into Doubletree with Doubletree
    surviving the Doubletree Merger and becoming a wholly-owned subsidiary of
    New Promus and (iv) each issued and outstanding share of Doubletree Common
    Stock will be converted into the right to receive one fully paid and
    nonassessable share of New Promus Common Stock;
 
                                       18
<PAGE>
        (b) to consider and vote on a proposal to approve and adopt the New
    Promus Equity Participation Plan; and
 
        (c) to transact such other business that may properly come before the
    Promus Special Meeting.
 
    Each copy of this Joint Proxy Statement/Prospectus mailed to holders of
Promus Common Stock is accompanied by a form of proxy for use at the Promus
Special Meeting.
 
    The Board of Directors of Promus recommends that stockholders vote FOR the
approval and adoption of the Merger Agreement and the New Promus Equity
Participation Plan.
 
RECORD DATE AND VOTING
 
    Promus has fixed the close of business on October 31, 1997 as the record
date for the determination of the Promus stockholders entitled to notice of and
to vote at the Promus Special Meeting. Accordingly, only holders of record of
Promus Common Stock on the record date will be entitled to notice of and to vote
at the Promus Special Meeting. As of October 31, 1997, there were outstanding
and entitled to vote 49,986,058 shares of Promus Common Stock (constituting all
of the voting stock of Promus), which shares were held by approximately 11,350
holders of record. Each holder of record of shares of Promus Common Stock on the
record date is entitled to one vote per share, which may be cast either in
person or by properly executed proxy, at the Promus Special Meeting. The
presence, in person or by properly executed proxy, of the holders of a majority
of the outstanding shares of Promus Common Stock entitled to vote at the Promus
Special Meeting is necessary to constitute a quorum at the Promus Special
Meeting.
 
    The approval of the Merger Agreement will require the affirmative vote of
the holders of a majority of the shares of Promus Common Stock outstanding on
the record date. The approval of the New Promus Equity Participation Plan will
require the affirmative vote of the holders of shares of Promus Common Stock
representing a majority of the votes cast on the matter, provided that the total
votes cast on the matter represent over 50% in interest of all shares entitled
to vote on the matter.
 
    Shares of Promus Common Stock represented in person or by proxy will be
counted for the purposes of determining whether a quorum is present at the
Promus Special Meeting. Shares which abstain from voting as to a particular
matter will be treated as shares that are present and entitled to vote at the
Promus Special Meeting for purposes of determining whether a quorum exists, but
will not be counted as votes cast on such matter. If a broker or nominee holding
stock in "street name" indicates on a proxy that it does not have discretionary
authority to vote as to a particular matter ("broker non-votes"), those shares
will be treated as present and entitled to vote at the Promus Special Meeting
for purposes of determining whether a quorum exists, but will not be counted as
votes cast on such matter. Accordingly, abstentions and broker non-votes will
have the same effect as votes against approval of the Merger Agreement, and may
have the same effect as votes against approval of the New Promus Equity
Participation Plan if they result in a failure of the total votes cast on the
matter to represent over 50% in interest of all shares of Promus Common Stock
entitled to vote on the matter.
 
    As of the record date for the Promus Special Meeting, directors and
executive officers of Promus and their affiliates may be deemed to be beneficial
owners of approximately 4% of the outstanding shares of Promus Common Stock and
have expressed their intent to vote their shares in favor of the Merger
Agreement.
 
VOTING AND REVOCATION OF PROXIES
 
    All shares of Promus Common Stock which are entitled to vote and are
represented at the Promus Special Meeting by properly executed proxies received
prior to or at such Meeting, and not revoked, will be voted at such Meeting in
accordance with the instructions indicated on such proxies. If no instructions
are indicated (other than in the case of broker non-votes), such proxies will be
voted for approval of the Merger Agreement and the New Promus Equity
Participation Plan.
 
                                       19
<PAGE>
    The Promus Board of Directors does not know of any matters other than those
described in the notice of the Promus Special Meeting that are to come before
such Meeting. If any other matters are properly presented at the Promus Special
Meeting for consideration, including, among other things, consideration of a
motion to adjourn such Meeting to another time and/or place (including, without
limitation, for the purposes of soliciting additional proxies or allowing
additional time for the satisfaction of conditions to the Merger), the persons
named in the enclosed forms of proxy and acting thereunder generally will have
discretion to vote on such matters in accordance with their best judgment.
Notwithstanding the foregoing, proxies voting against a specific proposal may
not be used by the persons named in the proxies to vote for adjournment of the
meeting for the purpose of giving management additional time to solicit votes to
approve such proposal.
 
    Any proxy given pursuant to this solicitation may be revoked by the person
giving it at any time before it is voted. Proxies may be revoked by (i) filing
with the Corporate Secretary of Promus, at or before the taking of the vote at
the Promus Special Meeting, a written notice of revocation bearing a later date
than the proxy, (ii) duly executing a later dated proxy relating to the same
shares and delivering it to the Corporate Secretary of Promus before the taking
of the vote at the Promus Special Meeting or (iii) attending the Promus Special
Meeting and voting in person (although attendance at the Promus Special Meeting
will not in and of itself constitute a revocation of a proxy). Any written
notice of revocation or subsequent proxy should be sent to Promus Hotel
Corporation, 755 Crossover Lane, Memphis, Tennessee 38117, Attention: Corporate
Secretary; or hand delivered to the Corporate Secretary of Promus at or before
the taking of the vote at the Promus Special Meeting.
 
    All expenses of Promus's solicitation of proxies for the Promus Special
Meeting will be borne by Promus, except that the cost of preparing and mailing
this Joint Proxy Statement/Prospectus will be borne equally by Doubletree and
Promus. In addition to solicitation by use of the mails, proxies may be
solicited from Promus stockholders by directors, officers and employees of
Promus in person or by telephone, telegram or other means of communication. Such
directors, officers and employees will not be additionally compensated, but may
be reimbursed for reasonable out-of-pocket expenses in connection with such
solicitation. Promus has retained D.F. King & Co., Inc., a proxy solicitation
firm, for assistance in connection with the solicitation of proxies for the
Promus Special Meeting at a cost of approximately $10,000 plus reimbursement of
reasonable out-of-pocket expenses. Arrangements will also be made with brokerage
houses, custodians, nominees and fiduciaries for forwarding of proxy
solicitation materials to beneficial owners of shares held of record by such
brokerage houses, custodians, nominees and fiduciaries, and Promus will
reimburse such brokerage houses, custodians, nominees and fiduciaries for their
reasonable expenses incurred in connection therewith.
 
    STOCKHOLDERS SHOULD NOT SEND STOCK CERTIFICATES WITH THEIR PROXIES. PROMUS
COMMON STOCK CERTIFICATES WILL BE EXCHANGED FOR SHARES OF NEW PROMUS COMMON
STOCK AND CASH IN LIEU OF FRACTIONAL SHARES FOLLOWING CONSUMMATION OF THE MERGER
IN ACCORDANCE WITH INSTRUCTIONS TO BE SENT TO HOLDERS OF PROMUS COMMON STOCK
AFTER THE MERGER.
 
                                       20
<PAGE>
                                   THE MERGER
 
BACKGROUND OF THE MERGER
 
    Over the past few years, Doubletree has pursued a growth strategy that
includes acquiring hotel companies with a product mix complementary to
Doubletree's existing hotel operations. In pursuing such strategy, Doubletree's
management identified Promus as a company that would satisfy such criteria and
decided to approach Promus concerning a possible combination of the two
companies. During the same period, Promus has pursued growth primarily through
development of new branded hotels, and from time to time has evaluated other
strategic acquisition opportunities, including a possible business combination
with Doubletree. Despite each company's consideration of various acquisition
opportunities, however, neither Doubletree nor Promus engaged in any discussions
with, or received any offers from, third parties (other than those leading to
the Merger) with respect to selling or combining with Doubletree or Promus, as
the case may be.
 
    In early June, 1997, Richard M. Kelleher, President and CEO of Doubletree,
contacted Raymond E. Schultz, President and CEO of Promus, to explore the
possibility of a combination of the two companies. Mr. Kelleher and Mr. Schultz
met in Memphis, Tennessee on June 12. On July 7, 1997, Mr. Schultz, Michael D.
Rose, Chairman of the Board of Promus, Richard J. Ferris, Co-Chairman of the
Board of Doubletree, Peter V. Ueberroth, Co-Chairman of the Board of Doubletree
and Mr. Kelleher met to further discuss the possible transaction. At each of
these meetings and at subsequent meetings held in July, Mr. Schultz, Mr. Rose,
Mr. Kelleher, William L. Perocchi, Executive Vice President and Chief Financial
Officer of Doubletree and other representatives of the two companies discussed
the strategic merits of a business combination of the companies, as well as the
financial and organizational aspects of such a transaction.
 
    In late June, Promus's management discussed the proposed transaction with BT
Wolfensohn, whom Promus's management intended to retain as financial advisor to
Promus in connection with the transaction (which engagement was formalized in
mid-August). Over the next few weeks, Promus's management consulted with BT
Wolfensohn on various financial matters concerning the transaction and BT
Wolfensohn prepared certain written financial analyses that would be used by
Promus's management and the Promus Board in evaluating the transaction.
 
    On July 23 and 24, all members of the Board of Directors of Promus met in
person, immediately following a regularly scheduled board meeting on July 23, to
discuss various strategic matters affecting Promus, including the possibility of
Promus merging with Doubletree. The members of the Promus Board considered the
proposed combination as a strategic alternative to Promus's then existing growth
plans and objectives. As a result of such discussions, Promus management was
directed to continue negotiations with Doubletree.
 
    A regular meeting of the Board of Directors of Doubletree was held on July
25 to discuss, among other things, the possibility of a business combination
with Promus. At this meeting, Doubletree's senior management presented its view
of the strategic benefits of a merger of equals transaction with Promus and
reviewed the discussions to date. The Doubletree Board then directed its
management to continue negotiations with Promus.
 
    Prior to the Board meeting, Doubletree had been consulting with Morgan
Stanley & Co. Incorporated ("Morgan Stanley") on various financial matters
concerning the proposed transaction. On August 6, Morgan Stanley was formally
retained by Doubletree. Over the next several weeks, Morgan Stanley prepared
various financial analyses of the transaction for use by Doubletree's management
and the Doubletree Board.
 
    In early August, the parties and their respective financial advisors
continued to discuss the possible terms of a combination of the two companies,
including possible exchange ratios for each company's capital stock. Each of the
companies' financial advisors prepared and discussed with their respective
clients various financial analyses and models based on a range of exchange
ratios of Promus Common Stock to Doubletree Common Stock (which included a range
of 0.85:1.0 to 1.0:1.0 prepared by Morgan Stanley and
 
                                       21
<PAGE>
a range of 0.87:1.0 to 1.05:1.0 prepared by BT Wolfensohn). The discussions
between the parties and their financial advisors culminated in a meeting in Salt
Lake City, Utah on August 13 between Mr. Schultz, Mr. Rose, Mr. Kelleher and Mr.
Ferris. At this meeting, Messrs. Schultz, Rose, Kelleher and Ferris discussed
certain terms of the transaction, including appropriate exchange ratios and
corporate governance matters.
 
    On August 15, Doubletree and Promus entered into confidentiality agreements
with each other with respect to the proposed transaction and the representatives
of the two parties began due diligence on each other's operations and financial
condition. During the week of August 18, representatives of Doubletree and
Promus continued to have discussions regarding the specific terms of the
transaction.
 
    On August 21, a special telephonic meeting of the Board of Directors of
Doubletree was held for the purpose of reviewing the proposed transaction with
Promus. All of the Doubletree directors participated in this meeting, together
with representatives of Morgan Stanley and Dewey Ballantine, legal counsel to
Doubletree in connection with the transaction. At the meeting, the basic outline
and terms of the transaction were reviewed and discussed, as were the pros and
cons of, the transaction. Doubletree's senior management reviewed for the
Doubletree Board certain historical and pro forma financial information
regarding the two companies and the combined enterprise. Doubletree's management
also reviewed for the Doubletree Board the due diligence process undertaken to
that point. Morgan Stanley reviewed its financial analysis of the terms of the
proposed combination and its views on the strategic merits of the transaction.
At the conclusion of the meeting, the Doubletree Board authorized its management
to continue the negotiations with Promus.
 
    The Board of Directors of Promus also held a special telephonic meeting on
August 21 for purposes of further evaluating the proposed combination. At such
meeting, in which all of Promus's directors and certain members of Promus's
senior management participated, Mr. Rose, as Chairman of the Board, reported on
the negotiations with Doubletree to date and led a discussion about the general
business terms of the transaction as then proposed, including the exchange
ratios for each company's capital stock. Members of the Promus Board discussed,
among other things, the relative valuation of Promus and Doubletree, various
issues pertaining to the management composition and corporate governance
structure of New Promus, and the importance of preserving Promus's guest
satisfaction guarantee program at all Promus hotel properties. Representatives
of BT Wolfensohn also participated in the meeting and presented certain
preliminary financial analyses regarding the transaction, including certain
historical and pro forma financial information regarding Promus and Doubletree
and New Promus. At the conclusion of the meeting, the Promus Board authorized
Promus's management to continue negotiations with Doubletree.
 
    During the negotiation process, the managements of Doubletree and Promus did
not solicit offers from third parties to purchase or combine with their
respective companies. This was due primarily to the view adopted by each
company's management that the proposed combination offered benefits to each
company that would not be obtained by alternative transactions and that
soliciting alternative transactions could jeopardize the companies' ability to
consummate the proposed merger of equals.
 
    During the period from August 21 to September 1, representatives of
Doubletree and Promus negotiated the remaining issues with respect to the
transaction, including the legal structure to be used for the business
combination, the terms and conditions of the Merger Agreement (including the
conversion of each outstanding share of Doubletree Common Stock into the right
to receive one share of New Promus Common Stock (the "Doubletree Exchange
Ratio") and the conversion of each outstanding share of Promus Common Stock into
the right to receive 0.925 shares of New Promus Common Stock (the "Promus
Exchange Ratio"), and the existence and amount of termination fees), the terms
of the Stock Option Agreements and the Stockholder Support Agreement, various
organizational and employee matters, and other aspects of the proposed business
combination. Also during this period, the two sides completed their due
diligence review of each other and prepared documentation for the transaction.
 
    On September 1, meetings of the Boards of Directors of Doubletree and Promus
were held to review the final terms of the proposed transaction.
 
                                       22
<PAGE>
    At the Doubletree Board meeting on September 1, in which all of the
Directors other than Mr. Leventhal (who was out of the country) participated,
Mr. Ferris, as Co-Chairman of the Board, led a discussion of the proposed
transaction. Dewey Ballantine reviewed the fiduciary duties of the directors of
Doubletree, and Mr. Ferris reviewed Doubletree's strategic alternatives,
including maintaining the status quo, seeking to grow through alternative
transactions, seeking to sell the company, and the merger of equals transaction
with Promus. The consensus of the Board was that the long-term interests of
Doubletree and its stockholders would be best served by pursuing a growth
strategy, as opposed to maintaining the status quo or seeking a sale of the
company. Moreover, the Doubletree Board believed that the proposed business
combination with Promus presented unusually attractive opportunities for growth,
by broadening the categories in which Doubletree would be able to compete and by
providing critical mass and economies of scale. See "--Recommendation of the
Boards of Directors of Doubletree and Promus; Reasons for the
Merger--Doubletree." Mr. Kelleher reviewed for the Doubletree Board the material
terms of the Merger Agreement, and David L. Stivers, Senior Vice President and
General Counsel, reviewed the results of the due diligence review performed with
respect to Promus. Morgan Stanley made a presentation to the Doubletree Board
regarding Promus, the terms of the proposed transaction, the potential market
reaction of the transaction and the fairness to the Doubletree stockholders,
from a financial point of view, of the Doubletree Exchange Ratio (taking into
account the Promus Exchange Ratio), but did not provide any analyses regarding
possible alternative transactions available to Doubletree. See "The
Merger--Opinion of Financial Advisor to Doubletree." Following this discussion,
the Board reviewed the terms of the proposed severance arrangements for
Doubletree employees (see "--Interests of Certain Persons in the
Merger--Severance Agreements") and considered the proposal that Doubletree adopt
a Stockholder Rights Plan. Following such discussions, the Merger Agreement and
the transactions contemplated thereby were approved by the Doubletree Board by a
unanimous vote of all Directors attending the meeting. Mr. Leventhal, who was
not present at the meeting, subsequently confirmed that he would have voted to
approve the Merger Agreement if he had been at the meeting.
 
    The Promus Board held a special telephonic meeting in Memphis, Tennessee on
September 1 that was attended by all members of the Promus Board other than
Christopher W. Hart (who was unavailable). At such meeting, Mr. Rose, as
Chairman of the Board, led a discussion regarding the proposed combination of
Doubletree and Promus and reported on the results of both parties' negotiations
to date. The Promus Board did not receive presentations regarding, and did not
discuss, pursuing any other transactions as an alternative to the merger with
Doubletree. BT Wolfensohn made a presentation about the fairness, from a
financial point of view, of the Promus Exchange Ratio to Promus stockholders.
See "The Merger-- Opinion of Financial Advisor to Promus." The meeting also was
attended by a representative of Latham & Watkins, Promus's outside legal counsel
for the transaction, who discussed the significant terms of the Merger Agreement
and explained the fiduciary duties of the members of the Promus Board in
deciding whether to approve such agreement. A representative of Arthur Andersen,
Promus's public accountants, then made a presentation as to the accounting
treatment of the Merger as a "pooling of interests". Following such
presentations and further discussion among the members of the Promus Board, all
members of the Promus Board of Directors present at the meeting voted
unanimously to approve and authorize the execution of the Merger Agreement and
other related agreements and authorized Promus's management to take all such
actions necessary to consummate the transactions contemplated thereby. Mr. Hart,
who was not present at the meeting, later confirmed that he would have voted to
approve the Merger Agreement if he had been present at the meeting. The Promus
Board also authorized the modification of certain existing severance and
benefits arrangements and adoption of certain new severance benefits
arrangements (see "--Interests of Certain Persons in the Merger--Severance
Agreements"), which actions had been recommended by the Human Resources
Committee of the Promus Board at a meeting of such committee earlier that day.
 
    Following the Board meetings, the Merger Agreement and the Stock Option
Agreements were executed and delivered by representatives of Doubletree and
Promus, and the Stockholder Support
 
                                       23
<PAGE>
Agreement was executed and delivered by representatives of Promus and the Key
Stockholders. On the morning of September 2, Doubletree and Promus issued a
joint press release announcing the transaction.
 
RECOMMENDATIONS OF THE BOARDS OF DIRECTORS OF DOUBLETREE AND PROMUS; REASONS FOR
  THE MERGER
 
    DOUBLETREE.  The Doubletree Board of Directors believes that the terms of
the Merger are fair to, and in the best interests of, Doubletree and its
stockholders. Accordingly, the Board of Directors has approved and adopted the
Merger Agreement and the transactions contemplated thereby and recommends its
approval and adoption by the stockholders of Doubletree.
 
    The Doubletree Board of Directors believes that the Merger represents the
best strategic alternative for Doubletree. It also believes that by combining
Doubletree's strengths as a leading hotel management company with Promus's
strengths as a leading hotel franchisor, it will create a powerful new hotel
company in the lodging industry. See "The Combined Company." The Doubletree
Board of Directors also believes that the Merger will provide important critical
mass and economies of scale that will allow New Promus to offer to guests,
franchisees, developers and investors an even more complete line of hotels and
hotel development opportunities with a strong presence in segments in which
Doubletree currently does not compete.
 
    In reaching its determination to approve the Merger Agreement and recommend
approval of the Merger to the Doubletree stockholders, the Doubletree Board of
Directors considered the information presented to it by Doubletree's management,
as well as Doubletree's professional advisors, and weighed the positive and
countervailing factors associated with the transaction. The factors considered
by the Doubletree Board of Directors included, without limitation:
 
        (i)  DOUBLETREE'S BUSINESS.  The Doubletree Board of Directors
    considered historical and prospective information concerning the financial
    condition, results of operation and business of Doubletree. The Doubletree
    Board of Directors considered the current state (and its perception of the
    future state) of the hotel industry and the economic and market conditions
    relating to the management and franchising of hotels, and the differences
    therein. The Doubletree Board of Directors reviewed the historical basis for
    Doubletree's growth since Doubletree's formation, including obtaining
    individual hotel management contracts, franchise agreements and leases and
    the acquisition of other hotel companies, and the prospects for Doubletree's
    future growth. Doubletree's management and professional advisors made
    presentations to the Doubletree Board of Directors providing it with
    operational, financial and legal information concerning Doubletree. The
    Board of Directors of Doubletree considered the strategic alternatives
    available to Doubletree in lieu of the transaction, including maintaining
    the status quo, seeking to grow through alternative transactions and seeking
    to sell the company. The Board of Directors of Doubletree considered that
    the Merger is expected to be accretive to Doubletree's earnings in the first
    full year following the consummation of the Merger, excluding transaction
    costs. In making such determination, the Doubletree Board focused primarily
    on the anticipated impact of the Merger on future per share earnings for the
    combined company rather than on the pro forma impact of the Merger on
    Doubletree's historical book value per share, which would have been $12.05
    at December 31, 1996 (as opposed to $20.26 actual) and $13.24 at September
    30, 1997 (as opposed to $21.66 actual).
 
        (ii)  PROMUS'S BUSINESS.  The Doubletree Board of Directors considered
    the operational, financial and legal due diligence provided to it by
    Doubletree's management and professional advisors. Such due diligence
    included historical and prospective information regarding the results of
    operations, financial condition and business of Promus and the current state
    (and its perception of the future state) of the hotel industry and the
    economic and market conditions relating to the management and franchising of
    hotels, and the differences therein. Factors included in evaluating Promus
    included, among other things, (a) the operating performance of Promus's
    hotels, (b) the terms and conditions of Promus's existing management
    contracts and franchise agreements, (c) Promus's hotel deal pipeline, (d)
    the leading position of Promus's Hampton Inns brand in the mid-priced
    segment of the lodging industry and its continued growth expectations given
    its size and market share and the segment's
 
                                       24
<PAGE>
    competitive environment, (e) comparing the existing Promus brands with the
    existing Doubletree brands and recognizing their complementary nature, (f)
    the high quality of the Promus brand names and their reputation as a leader
    in the customer satisfaction arena, (g) the number of hotels in the Promus
    portfolio and their broad geographic dispersion, (h) Promus's corporate
    management, infrastructure and facilities, (i) Promus's recent growth trends
    and its future prospects for growth and (j) the results of Doubletree's
    legal due diligence.
 
        (iii)  OPINION OF MORGAN STANLEY.  The Doubletree Board of Directors
    considered the presentation, and oral opinion, delivered by Morgan Stanley
    on September 1, 1997, that as of such date, the Doubletree Exchange Ratio,
    taking into account the Promus Exchange Ratio, is fair, from a financial
    point of view, to the stockholders of Doubletree. Morgan Stanley's oral
    opinion was subsequently confirmed in writing. See "Opinion of Financial
    Advisor to Doubletree." A copy of Morgan Stanley's written opinion, which
    sets forth the assumptions made, matters considered and limitation on the
    review undertaken is attached as Annex B to this Joint Proxy
    Statement/Prospectus and is incorporated herein by reference.
 
        (iv)  STRATEGIC MERITS OF THE MERGER.  The Board of Directors of
    Doubletree considered that by entering into the transaction, it could seek
    to capitalize on certain strategic elements that may not have been available
    in other alternative transactions. These elements included, among others:
 
           (a) the belief that the Merger will create opportunities to
       cross-sell and cross-market Doubletree's strength in managing hotels and
       Promus's strength in franchising hotels, including providing franchising
       opportunities for Doubletree brands and management opportunities for
       Promus's brands;
 
           (b) the belief that the Doubletree and Promus management teams would
       complement each other and work well together, and that the succession of
       senior management of the combined company would be established;
 
           (c) the belief that the Merger creates a platform for international
       development as well as future growth into other market segments not
       currently significantly penetrated by the combined company, such as the
       luxury and vacation interval ownership segments;
 
           (d) the belief that the Merger will reduce the dependence of
       Doubletree on the full-service segment of the lodging industry and
       provide better balance across major market segments (including upscale,
       all-suites, mid-price and extended-stay);
 
           (e) the belief that the Merger would allow the combined company to
       improve operating efficiencies, reduce costs and achieve synergies,
       particularly in the areas of reservations systems, information system
       development and maintenance, physical plant, purchasing, accounting and
       payroll; and
 
           (f) the belief that the combined company's fourteen member Board of
       Directors of New Promus, made up of seven members selected by each of
       Doubletree and Promus and an Executive Committee comprised of Richard J.
       Ferris, Peter V. Ueberroth, Michael D. Rose and Raymond E. Schultz, and a
       seasoned and proven management team drawn from both companies, will
       provide sound and effective leadership for the combined company.
 
        (v)  STRUCTURE OF MERGER; TERMS OF MERGER AGREEMENT.  The Board of
    Directors of Doubletree considered the terms of the Merger Agreement and its
    legal and tax implications. The Board of Directors of Doubletree considered
    the size of the termination fee payable, in certain circumstances, by either
    party under the Merger Agreement and also considered the Stock Option
    Agreements, the Stockholder Support Agreement and the exchange ratios of New
    Promus Stock for Doubletree Common Stock and Promus Common Stock. The Board
    of Directors of Doubletree considered that the Merger is expected to be
    accounted for as a pooling of interests transaction and is generally not
    expected to result in federal income taxes. The Doubletree Board of
    Directors considered the "merger of equals" transaction structure and the
    fact that the Promus Exchange Ratio and the
 
                                       25
<PAGE>
    Doubletree Exchange Ratio are fixed numbers and will not be adjusted in the
    event that there are any increases or decreases in the in price of either
    the Doubletree Common Stock or the Promus Common Stock.
 
        (vi)  COUNTERVAILING CONSIDERATIONS.  The Board of Directors of
    Doubletree considered certain factors which may be characterized as
    countervailing considerations, including:
 
           (a)  The fact that, based on the recent trading prices for Doubletree
       Common Stock and Promus Common Stock, the Promus stockholders would
       receive a premium over the then current market price of Promus Common
       Stock (which premium was 19.2% based on the closing stock prices of
       Doubletree and Promus on August 29, 1997, or 6.7% based on the average of
       stock prices of Doubletree and Promus was for the 30-day period ending on
       August 29, 1997); see "Comparative Market Prices and Dividends." While
       the Doubletree Board would have preferred that the Merger not involve a
       premium or discount for either side, it was felt that Promus would not
       agree to the transaction without a premium, and the amount of the
       premium, when viewed in the context of recent trading averages for the
       two stocks, was not viewed as inappropriate.
 
           (b)  The risks inherent in attempting to successfully integrate the
       management of Doubletree and Promus into an effective leadership
       organization and the difficulties that may be encountered in achieving
       the anticipated synergies from the Merger.
 
           (c)  The concern over the (as of then) undetermined location of the
       combined company's corporate offices and the possibility that key
       employees and members of the management of Doubletree or Promus, may not
       be willing to relocate and therefore may leave Doubletree or Promus, as
       the case may be.
 
           (d)  The voting power dilution of the Merger to the Doubletree
       stockholders, resulting in Doubletree's stockholder's ownership of
       roughly 44% of the shares of the combined company after the consummation
       of the Merger (as opposed to 100% prior thereto). This factor was not
       viewed as being as significant as those referred to above.
 
    In addition, the Doubletree Board reviewed the severance arrangements of
executive officers of Doubletree and other employee benefit provisions of the
Merger Agreement described below under "--Interests of Certain Persons in the
Merger." The Doubletree Board was aware that such arrangements would give
certain individuals interests in the Merger that were in addition to their
interests as stockholders of Doubletree generally.
 
    The foregoing discussion of the information and factors considered and given
weight by the Doubletree Board of Directors is not intended to be exhaustive but
is believed to include all material factors considered by the Board of Directors
of Doubletree. In addition, in reaching the determination to approve and
recommend approval and adoption of the Merger Agreement, in view of the wide
variety of factors considered in connection with its evaluation thereof, the
Board of Directors of Doubletree did not assign any relative or specific weights
to the foregoing factors, and individual directors may have given differing
weights to the different factors. The Doubletree Board did not attempt to
analyze the fairness of the Exchange Ratio in isolation from the considerations
as to the businesses of Doubletree and Promus, the strategic merits of the
Merger or the other considerations referred to above. The Doubletree Board did,
however, take into account, and placed reliance upon, the analyses performed by,
and the opinion rendered by, Morgan Stanley as to the fairness, from a financial
point of view, of the Exchange Ratio. The Board of Directors of Doubletree also
did not distinguish between factors that support a determination that the Merger
is "fair" and factors that support a determination that the Merger is in the
"best interests" of Doubletree's stockholders.
 
    THE DOUBLETREE BOARD OF DIRECTORS HAS APPROVED THE MERGER AGREEMENT AND THE
TRANSACTIONS CONTEMPLATED THEREBY AND BELIEVES THAT THE TERMS OF
 
                                       26
<PAGE>
THE MERGER ARE FAIR TO, AND IN THE BEST INTERESTS OF, DOUBLETREE AND ITS
STOCKHOLDERS. THE DOUBLETREE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR APPROVAL
AND ADOPTION OF THE MERGER AGREEMENT.
 
    PROMUS.  The Promus Board of Directors has determined and believes that the
terms of the Merger are fair to, and in the best interests of, Promus and its
stockholders. Accordingly, the Promus Board of Directors has approved and
adopted the Merger Agreement and the transactions contemplated thereby and
recommends its approval and adoption by the stockholders of Promus.
 
    In reaching its determination, the Promus Board of Directors consulted with
Promus management, as well as its legal counsel and financial advisor, and
considered a number of positive and negative factors, including:
 
        (i)  PROMUS'S BUSINESS, CONDITION AND PROSPECTS.  The Promus Board of
    Directors considered information with respect to the financial condition,
    results of operations and business of Promus, on both a historical and
    prospective basis, and current industry, economic and market conditions. The
    Promus Board of Directors considered Promus's historical growth strategies,
    including selective hotel acquisitions and the increase in the number of
    hotel franchises. Management and Promus's legal and financial
    representatives made presentations to and provided the Promus Board of
    Directors with information regarding Promus's financial condition and
    prospects after conducting business, legal and financial due diligence. In
    addition, the Promus Board concluded that the Merger should be accretive to
    Promus's earnings in the first full year, excluding transaction costs. In
    making such determination, the Promus Board relied primarily on projections
    of future per share earnings for the combined company (and not on historical
    earnings per share data).
 
        (ii)  DOUBLETREE'S BUSINESS, CONDITION AND PROSPECTS.  The Promus Board
    of Directors considered information with respect to the financial condition,
    results of operations and business of Doubletree, on both a historical and
    prospective basis, and current industry, economic and market conditions.
    Management and Promus's legal and financial representatives made
    presentations to and provided the Promus Board of Directors with information
    regarding Doubletree's financial condition and prospects after conducting
    business, legal and financial due diligence. In evaluating Doubletree's
    prospects, the Promus Board of Directors considered, among other things, the
    performance of Doubletree's hotels, the strength of its management team, the
    success of its recent hotel acquisitions and the reputation of the
    Doubletree brand name in the hotel industry. The Promus Board of Directors
    also considered Doubletree's geographical distribution of hotels and found
    it to be complementary to the distribution of Promus hotels.
 
        (iii)  OPINION OF BT WOLFENSOHN.  The Promus Board of Directors
    considered the oral opinion delivered on September 1, 1997 by BT Wolfensohn
    (which was subsequently confirmed in writing on that date) that as of such
    date the Promus Exchange Ratio, in connection with the Merger pursuant to
    the Merger Agreement, is fair, from a financial point of view, to the
    stockholders of Promus. The Promus Board also considered the oral and
    written presentations made to it by BT Wolfensohn. See "The Merger--Opinion
    of Financial Advisor to Promus." A copy of BT Wolfensohn's written opinion,
    which sets forth the assumptions made, matters considered and limitations on
    the review undertaken, is attached as Annex C to this Proxy
    Statement/Prospectus and is incorporated herein by reference.
 
        (iv)  FIXED EXCHANGE RATIO.  The Promus Board of Directors considered
    that the Promus Exchange Ratio is a fixed number and will not be adjusted in
    the event of any increases or decreases in the price of either the Promus
    Common Stock or Doubletree Common Stock. The Promus Board considered that
    the prices of Promus Common Stock and Doubletree Common Stock at the closing
    of the Merger may vary from their respective prices at the date of this
    Joint Proxy Statement/Prospectus and at the date of the Promus Special
    Meeting and the Doubletree Special Meeting. Such variations may be the
    result of changes in the business, operations or prospects of Promus or
    Doubletree, market assessments of the likelihood that the Merger will be
    consummated, the timing thereof and the
 
                                       27
<PAGE>
    prospects of the Merger and post-Merger operations, regulatory
    considerations, general market and economic conditions and other factors.
 
        (v)  STRATEGIC COMBINATION.  The Promus Board of Directors considered
    that the Merger would combine the strength and maturity of Promus's
    franchising system with Doubletree's brand presence. Further, it is the
    opinion of the Promus Board that the management team, growth strategy and
    hotel brands of Doubletree are complementary to those of Promus. In
    considering the Merger, the Promus Board of Directors took into account that
    the combined company will have enhanced market presence. The Promus Board of
    Directors considered the likelihood that the combination of Promus and
    Doubletree would create significant opportunities for the development and
    growth of the companies on a combined basis, including international
    development as well as further growth into the luxury and vacation interval
    ownership market segments. The Promus Board also considered that the
    management of New Promus will implement Promus's 100% Satisfaction Guarantee
    program at all of New Promus's hotel properties.
 
        (vi)  FINANCIAL CONDITION.  The Promus Board of Directors considered the
    likelihood that the Merger would enable Promus and Doubletree to realize
    higher total revenues and cash flows through a number of means, including
    the cross selling of hotel brands, the increase of franchise sales of
    Doubletree brands and the generation of preferred vendor fees to Promus. The
    Promus Board of Directors also considered the likelihood that a combination
    with Doubletree would allow New Promus to enjoy opportunities for operating
    efficiencies, cost reductions and synergies as a result of the Merger,
    particularly through the integration of information systems and support
    functions and the combined purchasing power of the two companies. The Promus
    Board also considered as a negative factor the fact that Doubletree is more
    leveraged than Promus.
 
        (vii)  TERMS OF THE MERGER.  The Promus Board of Directors considered
    the terms and conditions of the Merger Agreement, the Stock Option
    Agreements and the Stockholder Support Agreement, including the terms of the
    Merger Agreement that allow Doubletree or Promus to terminate the Merger
    Agreement under certain circumstances upon payment to the other party of a
    $45 million termination fee. The Promus Board of Directors considered such a
    termination fee in light of the range of fees payable in comparable
    transactions. The Promus Board also considered that, pursuant to the
    Stockholder Support Agreement, the holders of over 39% of the outstanding
    shares of Doubletree Common Stock have agreed to vote their shares of
    Doubletree Common Stock in favor of the Merger Agreement. The Promus Board
    also considered the fact that the Merger is expected to be accounted for as
    a pooling of interests transaction and is generally not expected to result
    in federal income taxes.
 
        (viii)  MANAGEMENT AND OWNERSHIP OF NEW PROMUS.  The Promus Board of
    Directors considered that the combined company will have a Board of
    Directors consisting of fourteen members, with seven members selected by
    each of Promus and Doubletree and an Executive Committee, which will
    initially be comprised of Raymond E. Schultz, Richard J. Ferris, Michael D.
    Rose and Peter V. Ueberroth. The Promus Board considered the likelihood that
    the management teams of Promus and Doubletree will complement each other and
    work well together in the combined company (as well as the corresponding
    risk that the companies might not succeed in integrating management teams).
    The Promus Board also discussed and took into consideration the employment,
    severance and other arrangements benefitting officers and directors of
    Promus provided for in the Merger Agreement and described below under the
    caption "--Interests of Certain Persons in the Merger." The Promus Board
    also considered the pro forma ownership of New Promus, noting that Promus
    stockholders would own approximately 54% of New Promus and Doubletree
    stockholders would own approximately 46%. As a company with no concentrated
    voting control, however, the Promus Board did not assign any significance to
    the fact that the Merger would further dilute the voting control of Promus
    Stockholders.
 
         (ix)  INTEGRATION OF OPERATIONS; NONREALIZATION OF SYNERGIES.  As
    described above, the Promus Board of Directors considered the extent to
    which the Merger would provide opportunities for revenue growth and
    operating cost savings that might not otherwise be available. However, the
 
                                       28
<PAGE>
    Promus Board also took into account that the Merger involves the integration
    of two companies that have previously operated independently. The Promus
    Board of Directors considered as a negative factor the possibility that New
    Promus will not be able to integrate the respective operations of Promus and
    Doubletree without encountering difficulties or experiencing the loss of key
    Promus or Doubletree personnel due to relocation or other reasons and the
    possibility that the benefits expected from such integration will not be
    realized. In addition, the Promus Board considered the possibility that New
    Promus will not be able to realize anticipated operating synergies and cost
    reductions from the Merger.
 
    The foregoing discussion of the information and factors considered and given
weight by the Promus Board of Directors is not intended to be exhaustive but is
believed to include all material factors considered by Board of Directors of
Promus. In addition, in reaching the determination to approve and recommend
approval and adoption of the Merger Agreement, in view of the wide variety of
factors considered in connection with its evaluation thereof, the Board of
Directors of Promus did not assign any relative or specific weights to the
foregoing factors, and individual directors may have given differing weights to
the different factors. In determining that the terms of the Merger are fair to,
and in the best interests of, Promus and its stockholders, the Promus Board
considered all of the foregoing factors, including, with respect to its analysis
of the fairness of the Exchange Ratios from a financial point of view, the
opinion of BT Wolfensohn and the oral presentations by Promus's executive
management regarding its independent financial analysis of Promus, Doubletree
and New Promus. However, the Board of Directors of Promus did not distinguish
between factors that support a determination that the Merger is "fair" and
factors that support a determination that the Merger is in the "best interests"
of Promus's stockholders.
 
    THE PROMUS BOARD OF DIRECTORS HAS APPROVED THE MERGER AGREEMENT AND THE
TRANSACTIONS CONTEMPLATED THEREBY AND BELIEVES THAT THE TERMS OF THE MERGER ARE
FAIR TO, AND IN THE BEST INTERESTS OF, PROMUS AND ITS STOCKHOLDERS. THE PROMUS
BOARD OF DIRECTORS RECOMMENDS A VOTE FOR APPROVAL AND ADOPTION OF THE MERGER
AGREEMENT.
 
OPINION OF FINANCIAL ADVISOR TO DOUBLETREE
 
    Morgan Stanley was retained by Doubletree to act as its financial advisor in
connection with the Merger and related matters based upon Morgan Stanley's
experience and expertise. On September 1, 1997, Morgan Stanley rendered to the
Board of Directors of Doubletree an oral opinion, confirmed in writing as of
such date, to the effect that, as of such date and based on and subject to
certain considerations stated therein, the Doubletree Exchange Ratio, taking
into account the Promus Exchange Ratio, pursuant to the Merger Agreement was
fair from a financial point of view to the holders of shares of Doubletree
Common Stock. Morgan Stanley has consented to the use of its name and the
summary of the Morgan Stanley opinion in this Joint Proxy Statement/Prospectus.
 
    THE FULL TEXT OF THE MORGAN STANLEY OPINION DATED SEPTEMBER 1, 1997, WHICH
SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED AND LIMITS ON THE REVIEW
UNDERTAKEN, IS ATTACHED AS ANNEX B TO THIS JOINT PROXY STATEMENT/PROSPECTUS AND
IS INCORPORATED HEREIN BY REFERENCE. HOLDERS OF DOUBLETREE COMMON STOCK ARE
URGED TO, AND SHOULD, READ THE MORGAN STANLEY OPINION CAREFULLY AND IN ITS
ENTIRETY. THE MORGAN STANLEY OPINION IS DIRECTED TO THE BOARD OF DIRECTORS OF
DOUBLETREE AND IS LIMITED TO THE FAIRNESS OF THE DOUBLETREE EXCHANGE RATIO,
TAKING INTO ACCOUNT THE PROMUS EXCHANGE RATIO, FROM A FINANCIAL POINT OF VIEW TO
THE HOLDERS OF SHARES OF DOUBLETREE COMMON STOCK, AND IT DOES NOT ADDRESS ANY
OTHER ASPECT OF THE MERGER NOR DOES IT CONSTITUTE A RECOMMENDATION TO ANY HOLDER
OF DOUBLETREE COMMON STOCK AS TO HOW TO VOTE AT THE DOUBLETREE SPECIAL MEETING.
THE SUMMARY OF THE MORGAN STANLEY OPINION SET FORTH IN THIS JOINT PROXY
STATEMENT/PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL TEXT
OF SUCH OPINION.
 
    In arriving at its opinion, Morgan Stanley: (i) reviewed certain publicly
available financial statements and other information of Promus and Doubletree;
(ii) reviewed certain internal financial statements and other financial and
operating data concerning Doubletree prepared by the management of Doubletree;
(iii) analyzed certain financial projections prepared by the management of
Doubletree; (iv) discussed the
 
                                       29
<PAGE>
past and current operations and financial condition and the prospects of
Doubletree with senior executives of Doubletree and analyzed the pro forma
impact of the Merger on Doubletree's earnings per share; (v) reviewed certain
internal financial statements and other financial and operating data concerning
Promus prepared by the management of Promus; (vi) analyzed certain financial
projections prepared by the management of Promus; (vii) discussed the past and
current operations and financial condition and the prospects of Promus with
senior executives of Promus; (viii) reviewed the reported prices and trading
activity for Doubletree Common Stock and Promus Common Stock; (ix) discussed
with the managements of Doubletree and Promus their views of the strategic
rationale for the Merger and the cost savings and other synergies expected to
result from the Merger; (x) participated in discussions and negotiations among
representatives of Doubletree and Promus and their financial and legal advisors;
and (xi) reviewed the Merger Agreement, the Stock Option Agreements, and certain
related documents.
 
    In rendering its opinion, Morgan Stanley assumed and relied upon without
independent verification the accuracy and completeness of the information
reviewed by Morgan Stanley for purposes of its opinion. With respect to
financial projections, Morgan Stanley assumed that they had been reasonably
prepared on bases reflecting the best currently available estimates and
judgments of the future financial performance of Doubletree and Promus. Morgan
Stanley relied upon, with the consent of Doubletree, the assumptions of the
management of Doubletree and Promus regarding cost savings and other synergies
that will result from the Merger. Morgan Stanley did not make any independent
valuation or appraisal of the assets or liabilities of Promus or Doubletree, nor
was Morgan Stanley furnished with any such appraisals. Morgan Stanley assumed
that the Merger will qualify as a "pooling of interests" business combination
for accounting and financial reporting purposes and will generally not result in
federal income taxes. Morgan Stanley also assumed that the Merger will be
consummated in accordance with the terms set forth in the Merger Agreement. The
Morgan Stanley opinion is necessarily based on economic, market and other
conditions as in effect on, and the information made available to Morgan Stanley
as of, the date thereof.
 
    In arriving at its opinion, Morgan Stanley was not authorized to solicit,
and did not solicit, interest from any party with respect to the acquisition of
Doubletree.
 
    The following is a brief summary of all material analyses performed and
factors considered by Morgan Stanley and reviewed with the Board of Directors of
Doubletree in connection with the preparation by Morgan Stanley of its oral
presentation to the Board of Directors of Doubletree on September 1, 1997.
 
    PUBLIC MARKET OVERVIEW.  Morgan Stanley reviewed certain trading information
for each of Doubletree and Promus, including market value, market capitalization
and institutional ownership. Morgan Stanley also reviewed historical and forward
trading multiples for each company.
 
    HISTORICAL STOCK PERFORMANCE.  Morgan Stanley compared the trading price of
the shares of Doubletree Common Stock and Promus Common Stock. This stock
performance review indicated that for Doubletree's and Promus's last twelve
months ("LTM") ended August 31, 1997, the high and low closing prices for shares
of Doubletree Common Stock and Promus Common Stock were $50.00 and $30.69 and
$40.25 and $28.25, respectively. The exchange ratios implied by comparing the
respective high to low prices and low to high prices of the Promus common stock
and Doubletree common stock were 0.505 and 1.311, respectively, compared to the
exchange ratio of 0.925 pursuant to the Merger Agreement. The Public Market
Overview and the Historical Stock Performance review were performed to provide
background information and to add context to the other analyses performed by
Morgan Stanley as described below.
 
    DISCOUNTED CASH FLOW ANALYSIS.  Morgan Stanley performed a discounted cash
flow analysis to calculate a present value of the stand-alone unlevered free
cash flows for Promus and Doubletree. With respect to Doubletree, Morgan Stanley
analyzed two scenarios: (i) the "Doubletree Management Case," which was based on
certain financial forecasts prepared by Doubletree management and (ii) the
"Sensitivity Case" which adjusted the aforementioned Management Case based on
several contingencies specified by Doubletree management. With respect to
Promus, Morgan Stanley analyzed: (i) the "Promus Management Base Case," based on
a series of projections prepared by Doubletree management based on Promus
 
                                       30
<PAGE>
management projections and (ii) the "Sensitivity Case" which adjusted the
aforementioned Promus Management Base Case based on several contingencies
specified by Doubletree management. For the Doubletree analysis, Morgan Stanley
discounted the estimated unleveraged free cash flows using a range of discount
rates from 11.0% to 12.0%. The discount rate range was selected based upon a
weighted average cost of capital analysis of Doubletree. For the Promus
analysis, Morgan Stanley discounted the estimated unleveraged free cash flows
using a range of discount rates from 10.5% to 11.5%. The discount rate range was
selected based upon a weighted average cost of capital analysis of Promus.
Morgan Stanley added to the present values of the cash flows the terminal values
of Promus and Doubletree, respectively, in the year 2001, and discounted the
terminal value using the same range of discount rates as was used to discount
the unleveraged free cash flows. The terminal value was calculated using the
terminal multiple method, assuming a range of terminal multiples of earnings
before interest, income taxes, depreciation and amortization ("EBITDA") between
10.0 and 12.0 for Doubletree and 11.0 and 13.0 for Promus. Based on this
analysis Morgan Stanley calculated a per share equity value of Doubletree
ranging from $48.83 to $61.54 based on the Doubletree Management Case and $37.77
to $47.95 using the Sensitivity Case. The per share equity values calculated for
Promus ranged from $41.77 to $51.96 in the Promus Management Base Case and
$34.85 to $43.58 in the Sensitivity Case. Morgan Stanley noted that, based upon
the August 27, 1997 closing price of Doubletree Common Stock of $44.25, the
0.925 exchange ratio implied a value per share of Promus Common Stock of $40.93,
which was below the range of values in the Promus Management Base Case and
within the range of values in the Sensitivity Case. The results of this analysis
helped support Morgan Stanley's fairness opinion.
 
    HISTORICAL EXCHANGE RATIO ANALYSIS.  Morgan Stanley analyzed the historical
exchange ratio between Promus Common Stock and Doubletree Common Stock over
several time periods. For each time period selected, Morgan Stanley calculated
the high, average and low exchange ratios. The time periods selected for the
analysis ended on August 29, 1997 and included: last two years, last twelve
months, last six months, last 90 days and last 30 days. The ranges of exchange
ratios for each of the aforementioned time periods were 0.621 to 1.125, 0.621 to
1.040, 0.757 to 1.040, 0.758 to 0.942 and 0.776 to 0.938, respectively. Morgan
Stanley observed that the exchange ratio pursuant to the Merger Agreement was
within each of these ranges. The average exchange ratio for each aforementioned
time period was 0.878, 0.821, 0.882, 0.859 and 0.868, respectively. Morgan
Stanley also calculated an exchange ratio of 0.893 based on the closing prices
of Doubletree Common Stock and Promus Common Stock on August 27, 1997.
 
    RELATIVE CONTRIBUTION ANALYSIS.  Morgan Stanley analyzed the pro forma
contribution of each of Doubletree and Promus to New Promus. Such analysis
included, among other things, relative contributions of equity value determined
in accordance with EBITDA, earnings before interest and income taxes ("EBIT")
and net income. Morgan Stanley observed that Doubletree would contribute a range
of 47.0% to 49.1 % of 1996 to 1998 projected EBITDA, 41.1% to 45.6% of 1996 to
1998 projected EBIT and 40.0% to 48.5% of 1996 to 1998 projected net income. The
ranges of implied exchange ratios between Promus Common Stock and Doubletree
Common Stock derived from relative contributions of equity value determined in
accordance with EBITDA, EBIT and net income were: (i) 0.825 to 0.899; (ii) 0.910
to 1.141, and (iii) 0.846 to 1.191, respectively. Morgan Stanley observed that
the relative ratio pursuant to the Merger Agreement was within the range of
exchange ratios suggested by the contribution analysis.
 
    ANALYSIS OF EXCHANGE RATIO IMPLIED BY DISCOUNTED CASH FLOW ANALYSIS.  Morgan
Stanley calculated the range of exchange ratios implied by dividing the low end
of the value range per Promus share suggested by the various Promus discounted
cash flow scenarios by the high end of the value range per Doubletree share
suggested by various Doubletree discounted cash flow scenarios and by dividing
the high end of the value range per Promus share suggested by the various Promus
discounted cash flow scenarios by the low end of the value range per Doubletree
share suggested by various Doubletree discounted cash flow scenarios. For the
purposes of this analysis, Morgan Stanley compared (i) the Management Case
discounted cash flow valuation of Promus to the Management Case discounted cash
flow valuation of Doubletree and (ii) the Sensitivity Case discounted cash flow
valuation of Promus to the Sensitivity Case discounted cash flow
 
                                       31
<PAGE>
valuation of Doubletree. The exchange ratios between Promus Common Stock and
Doubletree Common Stock implied by each of these scenarios were: (i) 0.678 to
1.064 and (ii) 0.727 to 1.154, respectively, compared with the exchange ratio
pursuant to the Merger Agreement of 0.925.
 
    Morgan Stanley observed that the Exchange Ratio in the Merger was within the
implied range of exchange ratios suggested by each of the Historical Exchange
Ratio Analysis, the Relative Contribution Analysis and the Exchange Ratio
Implied by Discounted Cash Flow Analysis, and such facts helped support Morgan
Stanley's fairness opinion.
 
    The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to a partial analysis or summary description. In
arriving at its opinion, Morgan Stanley considered the results of all of its
analyses as a whole and did not attribute any particular weight to any
particular analysis or factor considered by it. Furthermore, selecting any
portion of Morgan Stanley's analyses, without considering all analyses, would
create an incomplete view of the process underlying the Morgan Stanley opinion.
In addition, Morgan Stanley may have deemed various assumptions more or less
probable than other assumptions, so that the ranges of valuations resulting from
any particular analysis described above should not be taken to be Morgan
Stanley's view of the actual value of Doubletree or Promus.
 
    In performing its analysis, Morgan Stanley made numerous assumptions with
respect to industry performance, general business and economic conditions and
other matters, many of which are beyond the control of Doubletree and Promus.
The analyses performed by Morgan Stanley are not necessarily indicative of
actual values, which may be significantly more or less favorable than suggested
by such analyses. Such analyses were prepared solely as a part of Morgan
Stanley's analysis of whether the Doubletree Exchange Ratio, taking into account
the Promus Exchange Ratio, is fair from a financial point of view to the holders
of shares of Doubletree Common Stock and were provided to the Board of Directors
of Doubletree in connection with the delivery of the Morgan Stanley opinion. The
analyses do not purport to be appraisals or to reflect the prices at which
Doubletree or Promus might actually be sold. In addition, as described above,
the Morgan Stanley opinion, including Morgan Stanley's presentation to the Board
of Directors of Doubletree, was one of many factors taken into consideration by
the Board of Directors of Doubletree in making its determination to approve the
Merger.
 
    The consideration to be received by holders of Doubletree Common Stock
pursuant to the Merger Agreement was determined through negotiations between
Doubletree and Promus, and was approved by the Doubletree Board of Directors.
 
    The Board of Directors of Doubletree retained Morgan Stanley based upon
Morgan Stanley's experience and expertise. Morgan Stanley is an internationally
recognized investment banking and financial advisory firm. Morgan Stanley, as
part of its investment banking business, is continuously engaged in the
valuation of businesses and securities in connection with mergers and
acquisitions, negotiated underwritings, competitive biddings, secondary
distributions of listed and unlisted securities, private placements and
valuations for corporate and other purposes. Morgan Stanley is a full-service
securities firm engaged in securities trading and brokerage activities, as well
as providing investment banking and financial advisory services. In the ordinary
course of its trading and brokerage activities, Morgan Stanley or its affiliates
may at any time hold long or short positions, and may trade or otherwise effect
transactions, for its own account or the accounts of customers, in debt or
equity securities of Doubletree and Promus. In the past, Morgan Stanley and it
affiliates have provided financial advisory and financing services to Doubletree
and its affiliates and Promus and have received fees for the rendering of these
services.
 
    Pursuant to a letter agreement dated August 6, 1997, Doubletree has agreed
to pay Morgan Stanley (i) an advisory fee estimated to be $100,000 in the event
that the Merger is not consummated, (ii) an agreement fee of $1,000,000, payable
upon announcement of the Merger and (iii) an additional cash fee of $6,000,000,
if the Merger is consummated. In addition to the foregoing, Doubletree has
agreed to reimburse Morgan Stanley for its expenses, including fees and expenses
of counsel, and to indemnify Morgan Stanley for liabilities and expenses arising
out of the engagement and the transactions in connection therewith including
liabilities under federal securities laws.
 
                                       32
<PAGE>
OPINION OF FINANCIAL ADVISOR TO PROMUS
 
    BT Wolfensohn has acted as financial advisor to Promus in connection with
the Merger. On September 1, 1997, BT Wolfensohn delivered its oral opinion,
which opinion was subsequently confirmed in writing on that date (the "BT
Wolfensohn Opinion"), to the Promus Board of Directors to the effect that, based
upon the assumptions made, matters considered and limits of the review
undertaken by BT Wolfensohn, the Promus Exchange Ratio was fair, from a
financial point of view, to the stockholders of Promus. BT Wolfensohn has
consented to the use of its name and the summary of the BT Wolfensohn opinion in
this Joint Proxy Statement/Prospectus.
 
    A COPY OF THE BT WOLFENSOHN OPINION IS ATTACHED AS ANNEX C TO THIS JOINT
PROXY STATEMENT/PROSPECTUS AND IS INCORPORATED HEREIN BY REFERENCE. THE BT
WOLFENSOHN OPINION IS ADDRESSED TO THE BOARD OF DIRECTORS OF PROMUS AND IS
LIMITED TO THE FAIRNESS, FROM A FINANCIAL POINT OF VIEW, TO THE STOCKHOLDERS OF
PROMUS OF THE PROMUS EXCHANGE RATIO, AND DOES NOT ADDRESS THE MERITS OF THE
UNDERLYING DECISION BY PROMUS TO ENGAGE IN THE MERGER. THE BT WOLFENSOHN OPINION
DOES NOT CONSTITUTE A RECOMMENDATION TO ANY STOCKHOLDER OF PROMUS OR DOUBLETREE
AS TO HOW SUCH STOCKHOLDER SHOULD VOTE ON THE MERGER. THE SUMMARY OF THE BT
WOLFENSOHN OPINION SET FORTH IN THIS JOINT PROXY STATEMENT/PROSPECTUS IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL TEXT OF SUCH OPINION. HOLDERS
OF PROMUS COMMON STOCK ARE URGED TO, AND SHOULD, READ THE OPINION CAREFULLY AND
IN ITS ENTIRETY.
 
    In connection with BT Wolfensohn's role as financial advisor to Promus, and
in arriving at its opinion, BT Wolfensohn has, among other things: (i) reviewed
the publicly available consolidated financial statements of Doubletree for
recent years and interim periods to date and certain other relevant financial
and operating data of Doubletree available from public sources or provided to BT
Wolfensohn by Doubletree; (ii) reviewed the publicly available consolidated
financial statements of Promus for recent years and interim periods to date and
certain other relevant financial and operating data of Promus available from
public sources or provided to BT Wolfensohn by Promus; (iii) reviewed certain
internal financial and operating information, including certain projections,
relating to Promus and Doubletree, provided to BT Wolfensohn by Promus and
Doubletree, respectively; (iv) discussed the business, financial condition and
prospects of Promus and Doubletree with certain officers and certain members of
management of each organization; (v) considered the strategic objectives of
Promus as outlined to BT Wolfensohn by Promus management; (vi) reviewed the
trading prices and activity for Promus Common Stock and Doubletree Common Stock;
(vii) reviewed the financial terms of the Merger Agreement; (viii) reviewed the
financial terms of selected transactions in the lodging industry which BT
Wolfensohn believed to be relevant; (ix) reviewed certain public information
pertaining to companies engaged in businesses that BT Wolfensohn believed to be
generally comparable to those of Promus and Doubletree, including, without
limitation, the trading prices for the equity securities of such companies; (x)
analyzed the pro forma impact of the Merger on Promus and Doubletree, including
with respect to the combined company's earnings per share, consolidated
capitalization and financial ratios; and (xi) performed such other analyses and
examinations and considered such other information, financial studies, analyses
and investigations and financial, economic and market data as BT Wolfensohn
deemed relevant. (Except to the extent related to the analyses described below,
the analyses, examinations and information referenced in clause (xi) were not
material to the BT Wolfensohn Opinion.)
 
    In preparing its opinion, BT Wolfensohn did not assume responsibility for
the independent verification of any information, whether publicly available or
furnished to it, concerning Promus or Doubletree, including, without limitation,
any financial information, forecasts or projections, considered in connection
with the rendering of its opinion. Accordingly, for purposes of its opinion, BT
Wolfensohn assumed and relied upon the accuracy and completeness of all such
information, and BT Wolfensohn did not conduct a physical inspection of any of
the properties or assets, and did not prepare or obtain any independent
evaluation or appraisal of any of the assets or liabilities of Promus or
Doubletree. With respect to the financial forecasts and projections made
available to BT Wolfensohn and used in its analysis, including estimates of the
operating savings and other benefits and cost reductions achievable as a result
of the Merger, BT Wolfensohn assumed that they have been reasonably prepared on
bases reflecting the best
 
                                       33
<PAGE>
currently available estimates and judgments of the management of Promus or
Doubletree as to the matters covered thereby. In rendering its opinion, BT
Wolfensohn expressed no view as to the reasonableness of such forecasts and
projections or the assumptions on which they are based. In addition, BT
Wolfensohn expressed no opinion as to prices at which shares of New Promus will
trade following the Merger. BT Wolfensohn also assumed that the Merger will
qualify for pooling-of-interests accounting treatment in accordance with
generally accepted accounting principles and will generally not result in
federal income taxes. The BT Wolfensohn Opinion was necessarily based upon
economic, market and other conditions as in effect on, and the information made
available to BT Wolfensohn as of, the date of such opinion.
 
    BT Wolfensohn assumed that the Merger will be consummated on the terms and
subject to the conditions described in the Merger Agreement, and that all
conditions to the consummation of the Merger contained in the Merger Agreement
will be satisfied without the waiver of such conditions. BT Wolfensohn also
assumed that all necessary governmental and regulatory approvals and consents of
third parties will be obtained on terms and conditions that will not have a
material adverse effect on Promus or Doubletree. In connection with its
engagement, BT Wolfensohn was not authorized to solicit, nor has it solicited,
any third-party indications of interest for the acquisition of Promus, nor did
BT Wolfensohn review with Promus or its Board of Directors any potential
alternative transactions in lieu of the Merger. The terms of the Merger were
determined through negotiations between Promus and Doubletree and were approved
by the Promus Board of Directors. Although BT Wolfensohn provided advice to
Promus during the course of these negotiations, the decision to enter into the
Merger Agreement and to accept the Promus Exchange Ratio was solely that of the
Promus Board of Directors.
 
    The following is a brief summary of all material analyses performed by BT
Wolfensohn in connection with its opinion and discussed with the Promus Board of
Directors on September 1, 1997. In arriving at its opinion, BT Wolfensohn
compared the Promus Exchange Ratio and the results implied from such ratio to
the ranges of values generated by BT Wolfensohn's analyses.
 
    CONTRIBUTION ANALYSIS.  BT Wolfensohn analyzed and compared the pro forma
contributions made by each of Promus and Doubletree to the combined entity,
based on a comparison of certain stock market and financial information and
projections for each company on a stand-alone basis. Accordingly, this analysis
did not take into account any cost savings or revenue enhancements that may
result from the Merger. This analysis indicated that Promus would contribute to
the combined entity approximately (a) 53.9% of combined net income in 1997,
51.7% in 1998, 51.8% in 1999, and 52.0% in 2000; and (b) 46.8% of the combined
cash flow (that is, net income plus depreciation and amortization) in 1997,
45.1% in 1998, 46.3% in 1999, and 47.7% in 2000.
 
    BT Wolfensohn considered these projected contributions to combined net
income and cash flow in light of the proposed Promus Exchange Ratio, which would
result in holders of Promus Common Stock owning approximately 54% of the common
stock of New Promus following the Merger.
 
    HISTORICAL EXCHANGE RATIO ANALYSIS.  BT Wolfensohn reviewed the daily ratio
of the closing trading prices of Promus Common Stock and Doubletree Common Stock
for the year ended August 28, 1997. This ratio ranged from 0.621 to 1.040, with
a median of 0.827. BT Wolfensohn also reviewed the median historical exchange
ratios for specified periods within the year ended August 28, 1997. These ratios
ranged from 0.880 to 0.859. The ratio of the closing market prices of Promus
Common Stock ($39.13) and Doubletree Common Stock ($46.13) on August 28, 1997
was 0.848. BT Wolfensohn compared each of these historical ratios to the
proposed Promus Exchange Ratio of 0.925. BT Wolfensohn observed that the
proposed Promus Exchange Ratio is higher than the median historical exchange
ratios observed. The positive variance (that is, the difference between the
proposed Promus Exchange Ratio and any given median historical exchange ratio)
ranged from 0.045 to 0.098. BT Wolfensohn also considered the historical
exchange ratios and the Promus Exchange Ratio in light of the closing market
prices of Promus Common Stock ($38.81) and Doubletree Common Stock ($50.00) on
August 29, 1997.
 
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<PAGE>
    DISCOUNTED CASH FLOW ANALYSIS.  BT Wolfensohn performed a discounted cash
flow ("DCF") analysis of Promus and Doubletree using projections (provided by
respective managements) for the fiscal years ending December 31, 1997 through
December 31, 2001. Projections for Promus after 2001 were provided by Promus
management; projections for Doubletree after 2001 were based on the average
projected earnings before interest and income taxes ("EBIT") margins and revenue
growth rates for the period 1998-2001. In addition, BT Wolfensohn assumed
discount rates ranging from 11% to 13%, based on a weighted average cost of
capital ("WACC") analysis showing Promus's WACC as 12.4% and Doubletree's WACC
as 11.8%. This WACC analysis relied on projected weightings of the cost of
equity and the after-tax cost of debt derived from discussions with the
managements of Promus and Doubletree.
 
    DCF analysis is a method of estimating the present value of the stand-alone
unlevered cash flows that Promus and Doubletree would be expected to generate if
each performed in accordance with certain projections. Because the DCF values
were calculated as stand-alone values, no cost savings or revenue enhancements
were assumed. BT Wolfensohn calculated DCF values as the sum of the net present
values of (1) the projected unlevered free cash flows for each of Promus and
Doubletree for the years 1997 through 2006, plus (2) terminal value in the year
2006, calculated as the product of (a) projected EBITDA in 2006 and (b)
normalized hotel industry multiples ranging from 8.0x to 10.0x.
 
    Utilizing the DCF method, BT Wolfensohn calculated a stand-alone valuation
reference range for shares of Doubletree Common Stock of $42.32 to $58.94 per
share, implying a valuation reference range for Promus of $39.15 to $54.52 per
share after applying the Promus Exchange Ratio. BT Wolfensohn compared these
results to the stand-alone DCF valuation reference range for Promus of $34.24 to
$52.43 per share. In addition, based on the stand-alone valuation reference
ranges for Promus and Doubletree, BT Wolfensohn calculated implied exchange
ratios of a share of Doubletree Common Stock to a share of Promus Common Stock
ranging from 0.81 to 0.89, as compared with the proposed Promus Exchange Ratio
of 0.925.
 
    COMPARABLE COMPANY ANALYSIS.  BT Wolfensohn performed an analysis of the
implied transaction price for Promus (based on the 0.925 Promus Exchange Ratio
and the closing market price per share of Doubletree Common Stock of $46.13 on
August 28, 1997) as a multiple of projected EBITDA and of earnings per share. BT
Wolfensohn also analyzed the multiples of such financial performance measures as
of the same date for a group of public companies that BT Wolfensohn deemed to be
comparable (the "Promus Comparables"): Marriott International, Choice Hotels and
Four Seasons (the "Management and Franchise Comparables"); Host Marriott, Red
Roof Inns, La Quinta Inns and Sholodge (the "Hotel Ownership Comparables"); and
Capstar, Interstate Hotels, Servico, Prime Hospitality, John Q. Hammons Hotel
and Bristol Hotels (the "Non-Branded Comparables"). To calculate the trading
multiples for the Promus Comparables, BT Wolfensohn used publicly available
information concerning historical and projected financial performance for the
Promus Comparables, including published historical information, earnings
estimates from the Institutional Brokers Estimate System and estimates of EBITDA
based on analyst research reports.
 
    BT Wolfensohn then compared the trading multiples for the Promus Comparables
to the implied transaction multiples for Promus. The market values of the Promus
Comparables as multiples of estimated 1997 earnings per share ("EPS") ranged
from (a) 26.4x to 37.9x for Management and Franchise Comparables, with a median
of 30.8x; (b) 10.2x to 18.8x for Hotel Ownership Comparables, with a median of
13.8x; and (c) 10.3x to 26.2x for Non-Branded Comparables, with a median of
21.6x; as compared with an implied transaction multiple of 28.8x for Promus. The
market values of the Promus Comparables as multiples of estimated 1998 EPS of
the Promus Comparables ranged from (x) 22.3x to 32.1x for Management and
Franchise Comparables, with a median of 24.4x; (y) 8.6x to 14.9x for Hotel
Ownership Comparables, with a median of 11.9x; and (z) 9.7x to 20.9x for
Non-Branded Comparables, with a median of 17.7x; as compared with an implied
transaction multiple of 23.7x for Promus. The market values of the Promus
Comparables as multiples of estimated 1997 EBITDA of the Promus Comparables
ranged from (a) 11.2x to 16.5x for Management and Franchise Comparables, with a
median of 11.6x; (b) 7.2x to 11.1x
 
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<PAGE>
for Hotel Ownership Comparables, with a median of 8.6x; and (c) 6.9x to 12.0x
for Non-Branded Comparables, with a median of 9.7x; as compared to an implied
transaction multiple of 13.4x for Promus. The market capitalizations of the
Promus Comparables as multiples of estimated 1998 EBITDA of the Promus
Comparables ranged from (x) 9.4x to 13.9x for Management and Franchise
Comparables, with a median of 10.5x; (y) 5.6x to 9.0x for Hotel Ownership
Comparables, with a median of 7.3x; and (z) 6.0x to 9.2x for Non-Branded
Comparables, with a median of 7.8x; as compared with an implied transaction
multiple of 11.5x for Promus.
 
    None of the companies utilized as a comparison is identical to Promus,
Doubletree or the business segment for which a comparison is being made.
Accordingly, an analysis of publicly traded comparable companies is not simply
mathematical. Rather, it involves complex considerations and qualitative
judgments, reflected in BT Wolfensohn's opinion, concerning differences in
financial and operating characteristics of the comparable companies and other
factors that could affect the public trading value of the comparable companies.
 
    PRO FORMA COMBINATION ANALYSIS.  BT Wolfensohn analyzed the pro forma impact
of the Merger on Promus's EPS for the fiscal years ended 1998 through 2001. The
analysis was performed utilizing stand-alone earnings estimated for the fiscal
years ended 1998 through 2000 for Promus and Doubletree based on certain
financial projections prepared by the respective managements of each company.
Based on such analysis, the Merger will be accretive to Promus's EPS without
considering any cost savings or transaction costs that may result from the
Merger. BT Wolfensohn considered the pro forma impact of the Merger on Promus's
coverage ratios. In this regard, BT Wolfensohn noted that while the pro forma
debt/capital ratios for New Promus are greater than the projected Promus
stand-alone ratio, and the pro forma EBITDA/ interest ratios (calculated without
considering any cost savings or transaction costs that may result from the
Merger) for New Promus are less than the projected Promus stand-alone ratio, the
New Promus ratios are projected to improve over time and remain within published
S&P 3-year median credit rating ratios for investment grade companies. BT
Wolfensohn also considered pro forma DCF reference values of New Promus,
prepared by combining stand-alone projections provided by respective managements
and in accordance with the procedures described under the caption "Discounted
Cash Flow Analysis" above. In this analysis, BT Wolfensohn included a
hypothetical $20 million of transaction expenses. BT Wolfensohn compared pro
forma DCF reference valuations implied for Promus shareholders (the "Implied
Promus Valuation") to Promus stand-alone valuations (the "Stand-alone Promus
Valuation"). BT Wolfensohn observed that the Implied Promus Valuation compared
favorably to the Stand-alone Promus Valuation without considering any cost
savings or incremental transaction expenses greater than $20 million that may
result from the Merger.
 
    COMPARABLE TRANSACTIONS ANALYSIS.  BT Wolfensohn reviewed and analyzed
certain financial, operating and stock market information relating to selected
merger transactions. BT Wolfensohn analyzed seven transactions that had closed
or were currently pending involving the acquisition of companies in the lodging
industry (the "Lodging Transactions"). The Lodging Transactions and the date
each such transaction was announced are as follows: Patriot American
Hospitality/Wyndham Hotel Corporation (April 14, 1997); Marriott International
Corp./Renaissance Hotels, Inc. (February 18, 1997); Extended Stay America/
Studio Plus Hotels, Inc. (January 19, 1997); Bristol Hotels/Bass Plc (Holiday
Inn portfolio) (December 13, 1996); Interstate Hotels Company/Equity Inns. Inc.
(Trust Leasing Inc.) (September 19, 1996); Doubletree Corporation/Red Lions
Hotels, Inc. (September 12, 1996); Doubletree Corporation/RFS Inc. (December 19,
1995). Based on available data, this analysis showed that (a) the premium paid
to market price for the acquired companies ranged from 9.5% to 59.1%, with a
median of 22%; (b) total enterprise value as a multiple of last twelve months'
EBITDA for the acquired companies ranged from 7.5x to 29.8x, with a median of
19.3x; and (c) equity value as a multiple of last twelve months' earnings for
the acquired companies ranged from 21.2x to 63.1x, with a median of 26.05x.
 
    Based on its review of the terms of the Lodging Transactions (which each
involved the acquisition of one company by another and payment of a premium for
the resulting change of control), BT Wolfensohn
 
                                       36
<PAGE>
determined that none of the Lodging Transactions were directly comparable to the
Merger (which is structured as a merger of equals). BT Wolfensohn therefore
concluded that the multiples observed in the Lodging Transactions did not
constitute an appropriate valuation methodology for the Merger.
 
    BT Wolfensohn also analyzed six merger-of-equals transactions in which the
board of directors of the combined company was evenly split: NYNEX/Bell Atlantic
(announced April 21, 1996), UtiliCorp United/ Kansas City Power & Light Company
(announced January 19, 1996), The Upjohn Company/Pharmacia Aktiebolag (announced
August 20, 1995), Northern States Power Company/Wisconsin Energy Corporation
(announced April 28, 1995), Lockheed Corporation/Martin Marietta Corporation
(announced August 29, 1994), and KeyCorp/Society Corporation (announced October
1, 1993). This analysis indicated that the exchange ratios for such transactions
ranged from 0.768 to 1.630, generating implied share prices at premiums (or
discounts) ranging from 1.7% to -1.7% and 19.2% to -16.1% for the respective
parties to such transactions, based on share prices one day prior to the
announcement of such transactions. Based on currently outstanding shares and the
August 28, 1997 closing market prices for Promus Common Stock and Doubletree
Common Stock, the implied transaction price for Promus resulting from the Promus
Exchange Ratio represents a premium above the market price for Promus Common
Stock of approximately 9.0%.
 
    Because the reasons for, and circumstances surrounding, each of the
transactions analyzed were so diverse, and due to the inherent differences
between the operations and financial conditions of Promus and the selected
companies, BT Wolfensohn believes that a comparable transaction analysis is not
simply mathematical. Rather, it involves complex considerations and qualitative
judgments, reflected in BT Wolfensohn's opinion, concerning differences between
the characteristics of these transactions and the Merger that could affect the
value of the subject companies and businesses and Promus.
 
    OTHER MATTERS RELATING TO THE BT WOLFENSOHN OPINION.  The preparation of a
fairness opinion is a complex process involving the application of subjective
business judgment in determining the most appropriate and relevant methods of
financial analysis and the application of those methods to the particular
circumstances and, therefore, such an opinion is not readily susceptible to
summary description. BT Wolfensohn believes that its analyses must be considered
as a whole and that considering any portions of such analyses and of the factors
considered, without considering all analyses and factors, could create a
misleading view of the process underlying the opinion. Accordingly, BT
Wolfensohn did not assign specific weights to any particular analyses.
 
    In conducting its analyses and arriving at its opinions, Wolfensohn utilized
a variety of generally accepted valuation methods. In its analyses, Wolfensohn
made numerous assumptions with respect to industry performance, business and
economic conditions and other matters, many of which are beyond Promus's or
Doubletree's control. Estimates or forecasts of future results incorporated in
the analyses performed by BT Wolfensohn are not necessarily indicative of actual
past or future values or results, which may be significantly more or less
favorable than any such estimates or forecasts. Because such analyses are
inherently subject to uncertainty, being based upon numerous factors or events
beyond the control of Promus, Doubletree or their respective advisors, none of
Promus, Doubletree, BT Wolfensohn or any other person assumes responsibility if
future results or actual values are materially different from these forecasts or
assumptions.
 
    Promus selected BT Wolfensohn as financial advisor in connection with the
Merger based on BT Wolfensohn's qualifications, expertise, reputation and
experience in transactions similar to the Merger. Promus has retained BT
Wolfensohn pursuant to a letter agreement dated August 15, 1997 (the "Engagement
Letter"). As compensation for BT Wolfensohn's services in connection with the
Merger, Promus has agreed to pay BT Wolfensohn a cash fee of $1,000,000 and, if
the Merger is consummated, an additional cash fee of $6,000,000. Regardless of
whether the Merger is consummated, Promus has agreed to reimburse BT Wolfensohn
for all reasonable fees and disbursements of BT Wolfensohn's counsel and all of
BT Wolfensohn's reasonable travel and other out-of-pocket expenses incurred in
connection with the Merger or otherwise arising out of the retention of BT
Wolfensohn under the Engagement Letter. Promus
 
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<PAGE>
has also agreed to indemnify BT Wolfensohn and certain related persons to the
full extent lawful against certain liabilities, including certain liabilities
under the federal securities laws, arising out of its engagement or the Merger.
 
    BT Wolfensohn is engaged in the merger and acquisition and client advisory
business of Bankers Trust and, for legal and regulatory purposes, is a division
of BT Alex. Brown Incorporated, a registered broker dealer and member of the
NYSE. BT Wolfensohn is familiar with Promus, having provided financial advisory
and investment banking services to Promus for a number of years. BT Wolfensohn
receives fees for the rendering of these services. BT Wolfensohn or its
affiliates may actively trade equity securities of Promus or Doubletree for
their own account or the account of their customers and, accordingly, may from
time to time hold a long or short position in such securities.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
    In considering the recommendations of the Boards of Directors of Doubletree
and Promus with respect to the Merger, Doubletree and Promus stockholders should
be aware that certain members of management of Doubletree and Promus and of the
Doubletree Board of Directors and the Promus Board of Directors have interests
in the Merger that are different from, or in addition to, the interests of the
stockholders of Doubletree and Promus generally. The Board of Directors of each
of Doubletree and Promus was aware of such interests and considered them, among
other matters, in approving the Merger Agreement and the transactions
contemplated thereby.
 
    BOARD OF DIRECTORS, COMMITTEES AND MANAGEMENT OF NEW PROMUS.  As provided in
the Merger Agreement, upon the filing of certificates of merger with the
Secretary of State of the State of Delaware or at such later time as specified
therein (the "Effective Time"), the New Promus Board of Directors will consist
of 14 directors, seven of which will be designated by Doubletree (the "Initial
Doubletree Directors") and seven of which will be designated by Promus (the
"Initial Promus Directors'). Two, two and three of the Initial Doubletree
Directors will be Class I, II and III directors of New Promus, respectively, and
two, three and two of the Initial Promus Directors will be Class I, II and III
directors of New Promus, respectively. The Merger Agreement also provides that
until December 31, 2002, (a) the Board of Directors of New Promus and each
committee of the Board as constituted following each election of directors shall
consist of equal numbers of Doubletree Directors (as defined below) and Promus
Directors (as defined below), and (b) the size of the Board of Directors of New
Promus and each committee of the Board shall not be increased unless such
increase is approved by 75% of the directors of New Promus. If at any time prior
to December 31, 2002, the number of Doubletree Directors and Promus Directors
serving, or that would be serving following the next stockholders' meeting at
which directors of New Promus are to be elected, as directors of New Promus or
as members of any such committee, would not be equal, then, subject to their
fiduciary duties, the Board of Directors of New Promus and the Human Resources
Committee thereof shall nominate for election at the next stockholders' meeting
at which directors are to be elected, such person or persons as may be requested
by the remaining Doubletree Directors (if the number of Doubletree Directors is,
or would otherwise become, less than the number of Promus Directors) or by the
remaining Promus Directors (if the number of Promus Directors is, or would
otherwise become, less than the number of Doubletree Directors) to ensure that
there shall be an equal number of Doubletree Directors and Promus Directors. The
term "Doubletree Director" means (i) any Initial Doubletree Director and (ii)
any person who becomes a director of New Promus pursuant to the preceding
sentence and who is designated by the then Doubletree Directors. The term
"Promus Director" means (i) any Initial Promus Director and (ii) any person who
becomes a director of New Promus pursuant to the second preceding sentence and
who is designated by the then Promus Directors. The Bylaws of New Promus provide
that the above provisions may be amended by the Board of Directors of New Promus
only with the approval of 75% of the directors of New Promus.
 
    The Board of Directors of New Promus will have an Executive Committee
comprised of Messrs. Ferris, Rose, Schultz and Ueberroth. In addition, Mr.
Kelleher will be an ex-officio member of the
 
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<PAGE>
Executive Committee, with the right to attend, but not vote at, all meetings of
the Executive Committee. The non-employee members of the Executive Committee
will be paid $300,000 annually as compensation for serving on such Committee.
See "The Combined Company--Directors and Executive Officers." The Board of
Directors of New Promus also will have a Human Resources Committee, which is
expected to be chaired by Dale Frey.
 
    At the Effective Time, pursuant to the terms of the employment agreements
described below under "--Interests of Certain Persons in the Merger--Employment
Agreements," (i) Raymond E. Schultz, the current President and Chief Executive
Officer of Promus, will become Chief Executive Officer and Chairman of the Board
of New Promus; (ii) Richard M. Kelleher, the current President and Chief
Executive Officer of Doubletree, will become the President and Chief Operating
Officer of New Promus, (iii) William L. Perocchi, the current Executive Vice
President and Chief Financial Officer of Doubletree, will become the Executive
Vice President and Chief Financial Officer of New Promus and (iv) Thomas L.
Keltner, the current Executive Vice President and Chief Development Officer of
Promus, will become the Executive Vice President and Chief Development Officer
of New Promus. Mr. Schultz will continue as Chairman of the Board and Chief
Executive Officer of New Promus until his retirement and, pursuant to the terms
of Mr. Kelleher's employment agreement and subject to the Bylaws of New Promus,
Mr. Kelleher will succeed Mr. Schultz as Chairman of the Board and Chief
Executive Officer of New Promus. The provisions of the New Promus Bylaws
governing Mr. Kelleher's succession to Mr. Schultz as Chairman of the Board and
Chief Executive Officer of New Promus may only be amended, altered or repealed
through a vote by 75% of the Board of Directors of New Promus.
 
    INDEMNIFICATION OF DIRECTORS AND OFFICERS OF DOUBLETREE AND PROMUS.  The
Merger Agreement provides that (a) from and after the Effective Time, New Promus
will, and will cause Promus and Doubletree to, indemnify and hold harmless each
present and former director and officer of Doubletree and Promus (the
"Indemnified Parties"), against any costs or expenses (including attorneys'
fees), judgments, fines, losses, claims, damages, liabilities or amounts paid in
settlement incurred in connection with any claim, action, suit, proceeding or
investigation, whether civil, criminal, administrative or investigative, arising
out of or pertaining to matters existing or occurring at or prior to the
Effective Time, whether asserted or claimed prior to, at or after the Effective
Time, to the fullest extent that Doubletree or Promus, as the case may be, would
have been permitted under Delaware law and its certificate of incorporation or
bylaws in effect on the date of the Merger Agreement to indemnify such
Indemnified Party, and (b) for a period of six years after the Effective Time,
New Promus will cause to be maintained in effect policies of directors' and
officers' liability insurance with coverage in amount and scope at least as
favorable as Doubletree's and Promus's existing coverage (provided the annual
aggregate premium does not exceed 200% of the annual premium currently paid by
Doubletree and Promus for such coverage) with respect to claims arising from
facts or events which occurred on or before the Effective Time.
 
    EMPLOYMENT AGREEMENTS.  Prior to the closing of the Merger, New Promus will
enter into employment agreements with Messrs. Schultz, Kelleher, Perocchi and
Keltner. New Promus will employ Mr. Schultz as Chairman of the Board and Chief
Executive Officer of New Promus from the Effective Time until December 31, 1999.
Mr. Kelleher initially will be employed as President and Chief Operating Officer
of New Promus. Mr. Kelleher's employment agreement, which will have an initial
term of five years, will provide that upon Mr. Schultz's retirement, Mr.
Kelleher will succeed Mr. Schultz as Chairman of the Board and Chief Executive
Officer of New Promus. Both Mr. Schultz's and Mr. Kelleher's initial annual
salary will be set by the Human Resources Committee and thereafter will be
subject to merit increases as may be approved by the Human Resources Committee.
During the terms of their respective employment agreements, Mr. Schultz and Mr.
Kelleher will each be eligible for benefits available to other executives,
including eligibility for bonus compensation in the form of stock options and
restricted stock awards as may be approved by the Human Resources Committee. If
the employment agreement of Mr. Schultz or Mr. Kelleher is terminated without
"cause" by New Promus or for "good reason" (each as defined in the employment
agreement) by the employee, Mr. Schultz or Mr. Kelleher, as the case may be,
will receive a
 
                                       39
<PAGE>
lump sum payment equal to the sum of (i) his then current base salary, (ii) his
then current target annual bonus or the prior year's annual bonus, if greater,
and (iii) a benefit allowance of 25% of his then current base salary (such sum
referred to as the "Base Amount") times three. In addition, with respect to Mr.
Schultz, upon a termination without "cause" or a resignation for any reason,
unvested options and restricted stock issued after the Merger to Mr. Schultz
which are scheduled to vest over the next two years shall immediately vest upon
the date of termination, and all other unvested options and restricted stock
issued after the Merger to Mr. Schultz will continue to vest and, in the case of
options, be exercisable, pursuant to the terms of such options and restricted
stock as if such termination or resignation had not occurred. With respect to
Mr. Kelleher, upon a termination without "cause" or resignation for "good
reason," all unvested options and restricted stock issued after the Merger to
Mr. Kelleher will continue to vest and, in the case of options, be exercisable,
pursuant to the terms of such options and restricted stock as if such
termination or resignation had not occurred. Upon termination of Mr. Schultz's
or Mr. Kelleher's employment for "cause," their respective unvested options and
restricted stock will be cancelled. In the event that Mr. Schultz or Mr.
Kelleher becomes entitled to a lump sum payment as described above which is
subject to taxation under Section 4999 (the "Excise Tax") of the Internal
Revenue Code, the employment agreements of Mr. Schultz and Mr. Kelleher will
provide that New Promus will pay Mr. Schultz or Mr. Kelleher, as the case may
be, an additional amount (the "Gross-Up Payment") such that the net amount
retained by Mr. Schultz or Mr. Kelleher, as the case may be, after deduction of
the Excise Tax on the lump sum payment and all Excise Tax and other taxes on the
Gross-Up Payment shall equal the initial lump sum amount. After the termination
of his employment with New Promus, Mr. Schultz or Mr. Kelleher, as the case may
be, will be entitled to receive group insurance benefits at New Promus's cost
for his lifetime similar to the benefits provided to any retired management
director of New Promus. The employment agreements of Mr. Schultz and Mr.
Kelleher provide for certain restrictive covenants relating to nondisclosure of
confidential information, nonsolicitation of protected employees, and
noninterference with company opportunities for a period of two years following
the termination of employment. New Promus will indemnify and hold Mr. Schultz
and Mr. Kelleher harmless for any costs or liabilities arising out of or
pertaining to matters existing or occurring at or prior to their termination of
employment. For a period of six years after Mr. Schultz's and Mr. Kelleher's
termination of employment, New Promus shall maintain in effect liability
insurance with coverage in amount and scope at least as favorable as coverage
existing on the date of termination of employment. If Mr. Schultz's or Mr.
Kelleher's employment is terminated under circumstances that entitle him to
payment under his severance agreement (described below), Mr. Schultz or Mr.
Kelleher, as the case may be, would be entitled to receive the severance
payments under his severance agreement (if then in force) in lieu of the
severance payments under his employment agreement, but would still be entitled
to the lifetime group insurance benefits and vesting of options and restricted
stock to the extent provided in the employment agreement.
 
    The employment agreements to be entered into with Messrs. Perocchi and
Keltner will be substantially similar to the employment agreement to be entered
into with Mr. Schultz and Mr. Kelleher, except that Mr. Perocchi will be
employed as Executive Vice President and Chief Financial Officer, and Mr.
Keltner will be employed as Executive Vice President and Chief Development
Officer. In addition, upon a termination without "cause" or a resignation for
"good reason," all unvested options and restricted stock issued after the Merger
to Mr. Perocchi or Mr. Keltner, as the case may be, shall continue to vest and,
in the case of options, be exercisable, pursuant to the terms of such options
and restricted stock as if such termination or resignation had not occurred. The
provisions of the New Promus Bylaws require that, until such time as Mr.
Kelleher succeeds Mr. Schultz as Chairman of the Board and Chief Executive
Officer of New Promus, Mr. Perocchi shall serve as Executive Vice President and
Chief Financial Officer of New Promus, unless 75% or more of the members of the
New Promus Board of Directors vote otherwise.
 
    SEVERANCE AGREEMENTS.  In connection with the Merger, Doubletree entered
into severance agreements with 43 officers of Doubletree (including eight
executive officers) which provide certain benefits in the event of the
termination of such officer's employment without "cause" or by such officer for
"good
 
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<PAGE>
reason" (each as defined in the severance agreements) or, in the case of Messrs.
Kelleher and Perocchi, by such officer for any reason, within two years after a
"reorganization event" of Doubletree (or until Mr. Kelleher becomes Chairman and
Chief Executive Officer of New Promus, if later). The Merger will constitute
such a "reorganization event" with respect to both companies. Severance payments
under these agreements will equal three times the Base Amount for Senior Vice
Presidents and above, and two times the Base Amount for other officers. In the
event that an employee becomes entitled to a severance payment as described
above, which is subject to the Excise Tax of the Internal Revenue Code, the
severance agreement provides that New Promus shall pay such employee an
additional amount (the "Gross-Up Payment") such that the net amount retained by
the employee after deduction of the Excise Tax on the lump sum payment and all
Excise Tax and other taxes on the Gross-Up Payment shall equal the initial lump
sum amount. In addition, upon consummation of the Merger, Mr. Kelleher will
receive a $600,000 payment in connection with the termination of his existing
severance arrangements with Doubletree.
 
    In connection with the Merger, Promus entered into severance agreements (or
amendments to pre-existing severance agreements) with 45 officers and employees
of Promus (including seven executive officers) which provide certain benefits in
the event of the termination of such officer's or employee's employment without
cause or by such officer or employee for good reason (or, in certain cases, by
such officer or employee for any reason) within two years (three years in the
case of one officer) after the closing of the Merger. Severance payments under
these agreements will equal three times the Base Amount for certain corporate
officers, and two times the Base Amount for division officers and certain other
officers and executives. In the event that an employee becomes entitled to a
severance payment as described above, which is subject to an Excise Tax, the
employment agreement provides that New Promus shall pay such employee a Gross-Up
Payment such that the net amount retained by the employee after deduction of the
Excise Tax on the lump sum payment and all Excise Tax and other taxes on the
Gross-Up Payment shall equal the initial lump sum amount.
 
    For a summary of the estimated maximum value of the severance benefits
provided to the executive officers of Doubletree and Promus following
consummation of the Merger, see the table below under "--Stock Options and
Restricted Stock."
 
    Doubletree and Promus also entered into new severance agreements and/or
adopted new severance policies with respect to certain other employees of
Doubletree and Promus, respectively.
 
    Prior to the commencement of discussions between Promus and Doubletree with
respect to the Merger, Promus had entered into severance agreements with certain
of its corporate officers, including Messrs. Schultz and Rose. With respect to
the agreements with officers other than Messrs. Schultz and Rose, these
agreements were amended simultaneously with the execution of the severance
agreements described above. With respect to the agreements with officers other
than Messrs. Schultz and Rose, the amendments had the effect of excluding the
Merger and the execution of the Merger Agreement from the definition of a
"change of control" or "potential change in control" and to provide that these
earlier severance agreements would terminate upon the closing of the Merger. The
amendments also had the effect of changing the circumstance in which benefits
arise, and the potential amount payable in the event of a change of control
other than the Merger. With respect to Messrs. Schultz and Rose, the
pre-existing severance agreements have been amended to include the foregoing
provision.
 
    STOCK OPTIONS AND RESTRICTED STOCK.  The Amended and Restated Equity
Participation Plan of Doubletree Corporation, as amended (the "Doubletree
Incentive Plan"), provides for vesting of options and restricted stock upon a
"change in control." The Merger will constitute a change in control under the
Doubletree Incentive Plan. As a result, all of the currently unvested options
and restricted stock outstanding under the Doubletree Incentive Plan will become
fully vested and immediately exercisable upon consummation of the Merger. The
treatment in the Merger of outstanding options and restricted
 
                                       41
<PAGE>
stock granted under the Doubletree Incentive Plan is described under "The Merger
Agreement--Certain Covenants--Stock Plans."
 
    The Promus 1995 Stock Option Plan and the Promus 1995 Restricted Stock Plan
(collectively, the "Promus Incentive Plans") provide for vesting of options and
restricted stock upon a "change in control." The Merger will constitute a change
in control under the Promus Incentive Plans. As a result, all of the options and
restricted stock outstanding under the Promus Incentive Plans will become fully
vested upon consummation of the Merger. The treatment in the Merger of
outstanding options and restricted stock granted under the Promus Incentive
Plans is described under "The Merger Agreement--Certain Covenants--Stock Plans."
 
    The following table sets forth the estimated maximum value of certain
benefits afforded to the named executive officers, all executive officers as a
group, non-employee directors and all non-employee directors as a group of
Doubletree and Promus in connection with the Merger, including the amount of
severance payments that would be made to the such executive officers (assuming
for purposes of presentation that such executive officers are terminated within
the first year following the Merger) and the value of outstanding stock options
and restricted stock held by such executive officers and directors of Doubletree
and Promus which will be accelerated as a result of the Merger:
 
                                       42
<PAGE>
          ESTIMATED MAXIMUM VALUE OF POTENTIAL BENEFITS TO DOUBLETREE
                  AND PROMUS EXECUTIVE OFFICERS AND DIRECTORS
 
<TABLE>
<CAPTION>
                                                                         ESTIMATED        ESTIMATED        ESTIMATED
                                                          ESTIMATED       VALUE OF        VALUE OF          VALUE OF
                                                          VALUE OF     UNVESTED STOCK    RESTRICTED          TOTAL
                                                         CONTINGENT       OPTIONS           STOCK          POTENTIAL
                                                          SEVERANCE    ACCELERATED BY    ACCELERATED     BENEFITS FROM
EXECUTIVE OFFICERS AND DIRECTORS                         PAYMENT(1)      MERGER(2)      BY MERGER(3)       MERGER(4)
- ------------------------------------------------------  -------------  --------------  ---------------  ----------------
<S>                                                     <C>            <C>             <C>              <C>
PROMUS
  NAMED EXECUTIVE OFFICERS:
  Donald H. Dempsey...................................  $   1,398,951   $    652,146    $       4,671    $    2,055,768
  Thomas L. Keltner...................................      1,479,165        839,211            2,316         2,320,692
  Michael D. Rose.....................................      1,842,875      2,159,634         --               4,002,509
  Raymond E. Schultz..................................      3,345,195      2,272,417         --               5,617,612
  David C. Sullivan...................................      3,642,695      1,319,125         --               4,961,820
  All Executive Officers as a Group...................     14,293,036      8,449,449           18,841        22,761,326
 
  NON-EMPLOYEE DIRECTORS:
  U. Bertram Ellis, Jr................................       --              --                23,550            23,550
  Debra J. Fields.....................................       --              --                23,550            23,550
  Christopher W. Hart.................................       --              --                23,550            23,550
  C. Warren Neal......................................       --              --                23,550            23,550
  Ben C. Peternell....................................       --              --                23,550            23,550
  Michael I. Roth.....................................       --              --                23,550            23,550
  Jay Stein...........................................       --              --                23,550            23,550
  Ronald Terry........................................       --              --                23,550            23,550
  All Non-employee Directors as a Group...............       --              --               188,400           188,400
 
DOUBLETREE
  NAMED EXECUTIVE OFFICERS:
  Richard M. Kelleher.................................      2,362,500(5)   1,825,313         --               4,187,813
  William L. Perocchi.................................      1,485,000      1,101,094         --               2,586,094
  James P. Evans......................................      1,366,200      1,186,875         --               2,553,075
  Margaret Ann Rhoades................................        821,700        978,750         --               1,800,450
  Thomas W. Storey....................................      1,287,000        930,938         --               2,217,938
  All Executive Officers as a Group...................     10,297,500      7,272,031         --              17,569,531
 
  NON-EMPLOYEE DIRECTORS:
  Richard J. Ferris...................................       --              432,500          832,500         1,265,000
  Peter V. Ueberroth..................................       --              432,500          832,500         1,265,000
  William R. Fatt.....................................       --               71,563            5,720            77,283
  Dale F. Frey........................................       --                3,750            5,720             9,470
  Ronald K. Gamey.....................................       --               71,563            5,720            77,283
  Edward A. Gilhuly...................................       --                9,844            5,720            15,564
  Norman B. Leventhal.................................       --               71,563            5,720            77,283
  Michael W. Michelson................................       --                9,844            5,720            15,564
  John H. Myers.......................................       --              --              --                --
  Priscilla Florence..................................       --                5,000            5,720            10,720
  All Non-employee Directors as a Group...............       --            1,108,127        1,705,040         2,813,167
</TABLE>
 
- ------------------------
 
(1) The estimated value of the contingent severance payments that may be made
    assumes for purposes of presentation that termination of employment occurs
    within one year following consummation of the Merger. Payment of such
    amounts is subject to termination of employment under certain circumstances
    described above under "--Severance Agreements," and it cannot be estimated
    what amounts, if any, will actually be paid to executive officers. The
    amounts shown are exclusive of the amounts, if any, that would be required
    under the Severance Agreements as Gross-Up Payments.
 
                                       43
<PAGE>
(2) The estimated value represents the number of shares of Promus Common Stock
    or Doubletree Common Stock, as the case may be, subject to currently
    unvested stock options that become vested and exercisable as a result of
    consummating the Merger, multiplied by the "Option Spread." For purposes of
    this table, the "Option Spread" is the difference between the exercise price
    per share of each such option and the per share trading price of Doubletree
    Common Stock or Promus Common Stock, as the case may be, on the record dates
    of the Special Meetings (Promus: $39.25 per share; Doubletree: $41.625 per
    share) (the "Record Date Price").
 
(3) The estimated value represents the number of shares of restricted Doubletree
    Common Stock or restricted Promus Common Stock, as the case may be, with
    respect to which the restrictions will lapse as a result of consummating the
    Merger, multiplied by the Record Date Price (defined above).
 
(4) The estimated value of the total potential benefits represents the aggregate
    of the value of contingent severance payments, the value of unvested stock
    options accelerated by the Merger and the value of restricted stock
    accelerated by the Merger. Does not include the value of stock options that
    are fully vested prior to (and thus unaffected by) the Merger.
 
(5) Does not include a $600,000 payment to be received by Mr. Kelleher upon
    consummation of the Merger in connection with the termination of his
    existing severance arrangements with Doubletree.
 
    OPTION AGREEMENT.  Pursuant to an Option Agreement between Doubletree and GE
Investment Hotel Partners I, Limited Partnership ("GEHOP") dated June 30, 1994,
Doubletree issued to GEHOP an option to purchase 20,000 shares of Doubletree
Common Stock at an exercise price of $13.00 per share. As of the record date for
the Doubletree Special Meeting, 15,000 of such shares were vested and 5,000 were
unvested. Upon consummation of the Merger, all such shares will become fully
vested. Certain directors of Doubletree are affiliates of GEHOP.
 
    SUPPLEMENTAL RETIREMENT.  Messrs. Kelleher and Perocchi participate in a
Supplemental Executive Retirement Plan ("SERP") maintained by Doubletree. Under
the SERP, upon a "Change of Control" of Doubletree, a participant's retirement
benefits will be calculated on the basis of an unreduced age 60 normal
retirement benefit, regardless of the participant's age at retirement, rather
than a reduced age 55 benefit. The Merger will constitute a Change of Control
under the SERP. The present value of the additional accrued benefit for Messrs.
Kelleher and Perocchi as a result of the Merger will be approximately $526,000
and $222,000, respectively. In the event that SERP benefits become subject to an
excise tax under Section 4999 of the Internal Revenue Code, Doubletree will make
an additional "gross-up" payment to the participant to account for such tax.
 
    WARRANTS AND REGISTRATION RIGHTS.  In connection with the Merger, New Promus
will assume all obligations under a warrant to purchase 262,753 shares of
Doubletree Common Stock issued to PT Investments, Inc., an affiliate of General
Electric Pension Trust ("GEPT") (the "GEPT Warrant"). Certain directors of
Doubletree are affiliates of GEPT. After the Merger, the holder of the GEPT
Warrant shall have the right to acquire the same number of shares of New Promus
Common Stock as such holder would have been entitled to receive pursuant to the
Merger had such holder exercised the GEPT Warrant in full immediately prior to
the Merger at an aggregate purchase price equal to the aggregate exercise price
for the shares of Doubletree Common Stock purchasable pursuant to the GEPT
Warrant immediately prior to the Merger.
 
    In connection with the Merger, New Promus will enter into a registration
rights agreement with certain stockholders of Doubletree, including certain
directors and parties affiliated with directors of Doubletree, providing them
with certain "demand," "piggyback," and "shelf" registration rights with respect
to New Promus Common Stock then owned by them.
 
ACCOUNTING TREATMENT OF THE MERGER
 
    The Merger is intended to qualify as a pooling of interests for accounting
and financial reporting purposes. Under this method of accounting, the recorded
assets and liabilities of Doubletree and Promus
 
                                       44
<PAGE>
will be carried forward to the combined company at their recorded amounts, the
operating results of New Promus will include the operating results of Doubletree
and Promus for the entire fiscal year in which the combination occurs and the
reported operating results of the separate companies for prior periods will be
combined and restated as the operating results of the combined company. A
condition to the Merger is that Doubletree and Promus each receive a letter from
their respective independent auditors, KPMG Peat Marwick LLP and Arthur Andersen
LLP, regarding their concurrence with the conclusions of the management of
Doubletree and Promus that the transactions contemplated by the Merger
Agreement, if consummated, will qualify for pooling of interests accounting
treatment. See "The Merger--Accounting Treatment of the Merger" and
"--Conditions to Obligations to Effect the Merger."
 
    Pooling of interests accounting treatment requires the sharing of rights and
risks among the affiliates of each of the parties to a business combination such
that sales of stock by affiliates cannot occur in the period commencing 30 days
prior to the consummation of the combination and ending on the date on which the
combined company publicly announces financial results covering at least 30 days
of combined operations. To ensure that such pooling requirements are satisfied,
each of Doubletree and Promus agreed in the Merger Agreement to use all
reasonable efforts to obtain written agreements from their respective affiliates
containing, among other things, the restrictions described above. See "The
Merger--Resales of New Promus Common Stock Issued in Connection with the Merger;
Affiliate Agreements."
 
CERTAIN FEDERAL REGULATORY MATTERS
 
    The Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR Act")
rules and regulations thereunder require that parties of a certain size to a
proposed merger or business combination exceeding a certain size file with the
Antitrust Division of the Department of Justice (the "Antitrust Division") and
the Federal Trade Commission (the "FTC") Notification and Report Forms ("Forms")
with respect to such merger or business combination. The parties thereafter are
required to observe a waiting period before consummating the reported
transaction. In compliance with the HSR Act, Doubletree and Promus filed Forms
on October 3, 1997 with the Antitrust Division and the FTC with respect to the
Merger. The FTC granted early termination of the applicable waiting period under
the HSR Act on October 20, 1997. At any time before or after the Effective Time,
the Antitrust Division, the FTC, state antitrust authorities or a private person
or entity could seek to enjoin the Merger under the antitrust laws.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    In the opinion of Dewey Ballantine LLP, counsel to Doubletree, the material
federal income tax considerations generally applicable to holders of Doubletree
Common Stock who, pursuant to the Doubletree Merger, exchange their Doubletree
Common Stock solely for New Promus Common Stock, and in the opinion of Latham &
Watkins, counsel to Promus, the material federal income tax considerations
generally applicable to holders of Promus Common Stock who, pursuant to the
Promus Merger, exchange their Promus Common Stock solely for New Promus Common
Stock, are described below. Consummation of the Doubletree Merger is conditioned
upon the receipt by Doubletree of an opinion of Dewey Ballantine LLP, based upon
reasonably requested representation letters and dated the closing date, to the
effect that the Doubletree Merger will be treated for federal income tax
purposes as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Promus Merger, as a transfer of property to New Promus
by holders of Doubletree Common Stock described in Section 351 of the Code. The
portion of the discussion below under "Treatment of Holders of Doubletree Common
Stock" assumes that the Doubletree Merger will be treated in accordance with the
opinion of Dewey Ballantine LLP described in the preceding sentence.
Consummation of the Promus Merger is conditioned upon the receipt by Promus of
an opinion of Latham & Watkins, based upon reasonably requested representation
letters and dated the closing date, to the effect that the Promus Merger will be
treated for federal income tax purposes as a reorganization described in Section
368(a) of the Code and/or, taken together with the Doubletree Merger, as a
transfer of property to New Promus by holders of Promus Common Stock
 
                                       45
<PAGE>
described in Section 351 of the Code. The portions of the discussion below under
"--Treatment of Holders of Promus Common Stock" and "--Cash in Lieu of
Fractional Shares" assume that the Promus Merger will be treated in accordance
with the opinion of Latham & Watkins described in the preceding sentence.
 
    The discussion below and the opinions of Dewey Ballantine LLP and Latham &
Watkins are based upon current provisions of the Code, currently applicable
Treasury regulations, and judicial and administrative decisions and rulings.
There can be no assurance that the Internal Revenue Service (the "IRS") will not
take a contrary view, and no ruling from the IRS has been or will be sought.
Future legislative, judicial or administrative changes or interpretations could
alter or modify the statements and conclusions set forth herein, and any such
changes or interpretations could be retroactive and could affect the tax
consequences to the stockholders of Doubletree and Promus.
 
    The discussion below and the opinions of Dewey Ballantine LLP and Latham &
Watkins do not purport to deal with all aspects of federal income taxation that
may affect particular stockholders in light of their individual circumstances,
and is not intended for stockholders subject to special treatment under the
federal income tax law (including insurance companies, tax-exempt organizations,
financial institutions, broker-dealers, foreign persons, stockholders who hold
their stock as part of a hedge, appreciated financial position, straddle or
conversion transaction, stockholders who do not hold their stock as capital
assets and stockholders who have acquired their stock upon the exercise of
employee options or otherwise as compensation). In addition, the discussion
below and the opinions do not consider the effect of any applicable state, local
or foreign tax laws.
 
    TREATMENT OF HOLDERS OF DOUBLETREE COMMON STOCK.  A holder of Doubletree
Common Stock who, pursuant to the Doubletree Merger, exchanges Doubletree Common
Stock for New Promus Common Stock will not recognize gain or loss upon such
exchange. (See, however, the discussion below under "-- Transfer Taxes"
regarding certain deemed dividends that may arise as a result of the Merger.)
Such holder's tax basis in the New Promus Common Stock received pursuant to the
Doubletree Merger will be equal to its tax basis in the Doubletree Common Stock
surrendered, and its holding period for the New Promus Common Stock will include
its holding period for the Doubletree Common Stock surrendered.
 
    TREATMENT OF HOLDERS OF PROMUS COMMON STOCK.  Except as discussed below
under "--Cash in Lieu of Fractional Shares," a holder of Promus Common Stock
who, pursuant to the Promus Merger, exchanges Promus Common Stock for New Promus
Common Stock will not recognize gain or loss upon such exchange. (See, however,
the discussion below under "--Transfer Taxes" regarding certain deemed dividends
that may arise as a result of the Merger.) Such holder's tax basis in the New
Promus Common Stock received pursuant to the Promus Merger will be equal to its
tax basis in the Promus Common Stock surrendered (excluding any portion of its
tax basis allocated to fractional shares), and its holding period for the New
Promus Common Stock will include its holding period for the Promus Common Stock
surrendered.
 
    CASH IN LIEU OF FRACTIONAL SHARES.  A holder of Promus Common Stock who
receives cash in lieu of fractional shares of New Promus Common Stock will be
treated as having received such fractional shares pursuant to the Promus Merger
and then as having exchanged such fractional shares for cash in a redemption by
New Promus. Any gain or loss attributable to fractional shares generally will be
capital gain or loss. The amount of such gain or loss will be equal to the
difference between the portion of the holder's tax basis in the Promus Common
Stock surrendered in the Promus Merger that is allocated to its fractional share
and the cash received in lieu thereof. Any such capital gain or loss will
constitute long-term capital gain or loss if the Promus Common Stock has been
held by the holder for more than one year at the Effective Time. Long-term
capital gain recognized by certain non-corporate stockholders is subject to
federal income tax at preferential capital gains rates, and such gain recognized
with respect to an asset with a holding period of more than 18 months is subject
to federal income tax at further reduced capital gains rates.
 
                                       46
<PAGE>
    TRANSFER TAXES.  Pursuant to the Merger Agreement, Doubletree and Promus
will each pay certain New York State Real Estate Transfer Tax and certain other
transfer taxes ("Transfer Taxes") that arise as a result of the Merger. Such
payments may be considered for federal income tax purposes to be taxable
distributions paid to each holder of the corresponding corporation's common
stock. In that event, each holder of Doubletree Common Stock or Promus Common
Stock would be treated as if it received cash equal to the amount of Transfer
Taxes paid on its behalf by Doubletree or Promus, as the case may be. Pursuant
to the Merger Agreement and this Joint Proxy Statement/Prospectus, stockholders
of Doubletree and Promus will be deemed to have authorized Doubletree and Promus
to prepare, file and execute any tax returns related to such Transfer Taxes and
to have agreed to be bound by the values and allocations established by
Doubletree, Promus or New Promus on any such tax returns relating to Transfer
Taxes.
 
    REPORTING REQUIREMENTS AND BACKUP WITHHOLDING.  Each stockholder of
Doubletree and Promus receiving New Promus Common Stock as a result of the
Merger will be required to retain certain records and file with its federal
income tax return a statement setting forth certain facts relating to the
Merger.
 
    Backup withholding at the rate of 31% may apply with respect to certain
payments unless the recipient (i) is a corporation or comes within certain other
exempt categories and, when required, demonstrates this fact or (ii) provides a
correct taxpayer identification number, certifies as to no loss of exemption
from backup withholding and otherwise complies with applicable requirements of
the backup withholding rules. A stockholder who does not provide New Promus with
its correct taxpayer identification number may be subject to penalties imposed
by the IRS. Any amounts withheld under the backup withholding rules may be
allowed as a refund or a credit against the stockholder's federal income tax
liability provided that certain required information is furnished to the IRS.
 
    New Promus will report to stockholders of New Promus and to the IRS the
amount of "reportable payments" and any amount withheld with respect to New
Promus Common Stock during each calendar year.
 
    THE FOREGOING GENERAL DESCRIPTION OF CERTAIN FEDERAL INCOME TAX CONSEQUENCES
IS NOT TAX ADVICE AND MAY NOT APPLY TO ALL STOCKHOLDERS OF DOUBLETREE AND
PROMUS. ACCORDINGLY, EACH STOCKHOLDER OF DOUBLETREE AND PROMUS IS URGED TO
CONSULT ITS OWN TAX ADVISOR WITH RESPECT TO THE TAX CONSEQUENCES OF THE MERGER,
INCLUDING THE APPLICABILITY AND EFFECT OF STATE, LOCAL OR FOREIGN TAX LAWS.
 
DELISTING AND DEREGISTRATION OF DOUBLETREE COMMON STOCK AND PROMUS COMMON STOCK;
  LISTING OF NEW PROMUS COMMON STOCK
 
    Doubletree Common Stock currently is listed for quotation on the Nasdaq
National Market ("Nasdaq") under the symbol "TREE." Upon consummation of the
Merger, Doubletree Common Stock will be delisted from Nasdaq and deregistered
under Securities Exchange Act of 1934, as amended (the "Exchange Act"). Promus
Common Stock currently is listed on the New York Stock Exchange (the "NYSE")
under the symbol "PRH." Upon consummation of the Merger, Promus Common Stock
will be delisted from NYSE and deregistered under the Exchange Act. Application
will be made for the listing on the NYSE, the Chicago Stock Exchange, the
Pacific Stock Exchange and the Philadelphia Stock Exchange of the shares of New
Promus Common Stock to be issued in the Merger. This listing on the NYSE is a
condition to the consummation of the Merger. See "The Merger
Agreement--Conditions to Obligations to Effect the Merger." Following the
Merger, Doubletree and Promus stockholders will need to exchange their
outstanding stock certificates for shares of New Promus Common Stock. See "The
Merger Agreement--Exchange of Stock Certificates."
 
    HOLDERS OF DOUBLETREE COMMON STOCK OR PROMUS COMMON STOCK SHOULD NOT SEND IN
THEIR CERTIFICATES UNTIL THEY RECEIVE A TRANSMITTAL FORM FROM FIRST UNION
NATIONAL BANK, THE EXCHANGE AGENT THEREFOR.
 
                                       47
<PAGE>
RESALES OF NEW PROMUS COMMON STOCK ISSUED IN CONNECTION WITH THE MERGER;
  AFFILIATE AGREEMENTS
 
    New Promus Common Stock issued in connection with the Merger will be freely
transferable, except that shares of New Promus Common Stock received by persons
who are deemed to be "affiliates" (as such term is defined by Rule 144 under the
Securities Act of 1933 (the "Securities Act") of Doubletree or Promus at the
Effective Time may be resold by them only in transactions permitted by the
resale provisions of Rule 145 under the Securities Act or as otherwise permitted
under the Securities Act. Doubletree and Promus have agreed that they will use
all reasonable efforts to cause each of their executive officers and directors
and persons who may be deemed to be "affiliates" to execute a written agreement
(an "Affiliate Agreement") providing, among other things, that such person will
not offer, sell, transfer or otherwise dispose of any of the shares of New
Promus Common Stock obtained as a result of the Merger except in compliance with
the Securities Act and the rules and regulations of the Securities and Exchange
Commission (the "SEC") thereunder. Each Affiliate Agreement also (i) will
provide that the affiliate covered by such agreement may not take certain
actions that would jeopardize the accounting treatment of the Merger as a
"pooling of interests" and (ii) require such affiliate to make certain
representations with respect to certain tax matters. This summary is qualified
in its entirety by reference to the specific provisions of the Affiliate
Agreements, the forms of which are included as exhibits to the Current Report on
Form 8-K of Promus filed with the SEC on September 5, 1997 and the Current
Report on Form 8-K of Doubletree filed with the SEC on September 5, 1997, as
amended. See "Where You Can Find More Information."
 
NO APPRAISAL RIGHTS
 
    Holders of Doubletree Common Stock and Promus Common Stock are not entitled
to dissenters' or appraisal rights in connection with the Merger because (i) the
Doubletree Common Stock was quoted on the Nasdaq on the record date for the
Doubletree Special Meeting, (ii) the Promus Common Stock was listed on the NYSE
on the record date for the Promus Special Meeting and (iii) the shares of New
Promus Common Stock that such holders will be entitled to receive in the Merger
will be listed on the NYSE as of the Effective Time.
 
CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS
 
    Doubletree and Promus have made forward-looking statements in this document
and the documents incorporated by reference herein that are subject to risks and
uncertainties. These statements are based on management's beliefs and
assumptions, based on information currently available to management. Forward-
looking statements include the information concerning possible or assumed future
results of operations of Doubletree and Promus set forth (i) under "Summary,"
"Risk Factors," "The Merger--Background of the Merger," "--Recommendations of
the Boards of Directors of Doubletree and Promus; Reasons for the Merger,"
"--Opinion of Financial Advisor to Doubletree " and "--Opinion of Financial
Advisor to Promus," and "Unaudited Pro Forma Financial Information," (ii) under
"Business" and "Management's Discussion and Analysis" in each company's Annual
Report on Form 10-K and Quarterly Reports on Form 10-Q incorporated by reference
into this document, (iii) under "The Combined Company--Business and Strategy"
and (iv) in this document and the documents incorporated herein by reference
preceded by, followed by or that include the words "believes," "expects,"
"anticipates," "intends," "plans," "estimates" or similar expressions.
 
    Forward-looking statements are not guarantees of performance. They involve
risks, uncertainties and assumptions. The future results and stockholder values
of Doubletree, Promus and New Promus may differ materially from those expressed
in these forward-looking statements. Many of the factors that will determine
these results and values are beyond Doubletree's and Promus's ability to control
or predict. Shareholders are cautioned not to put undue reliance on any
forward-looking statements. In addition, Doubletree and Promus do not have any
intention or obligation to update forward-looking statements after they
distribute this Joint Proxy Statement/Prospectus, even if new information,
future events or other
 
                                       48
<PAGE>
circumstances have made them incorrect or misleading. For those statements,
Doubletree and Promus claim the protection of the safe harbor for
forward-looking statements contained in the Private Securities Litigation Reform
Act of 1995.
 
    Shareholders of Doubletree and Promus should understand that the following
important factors, in addition to those discussed elsewhere in the documents
which are incorporated by reference into this Joint Proxy Statement/Prospectus,
could affect the future results of New Promus and could cause results to differ
materially from those expressed in such forward-looking statements: (i) the
effect of economic conditions; (ii) the ability of Doubletree and Promus to
successfully integrate their operations; (iii) the impact of competition; and
(iv) customer demand.
 
                                       49
<PAGE>
                              THE COMBINED COMPANY
 
    As a result of the Merger, Doubletree and Promus will become wholly-owned
subsidiaries of New Promus, which will succeed to the businesses currently
conducted by Doubletree and Promus. The corporate headquarters of New Promus
will be in Memphis, Tennessee. The executive management of New Promus will be
comprised of members of the existing executive management of Doubletree and
Promus, with Raymond E. Schultz serving as Chief Executive Officer and Chairman
of the Board of New Promus and Richard M. Kelleher serving as the President and
Chief Operating Officer of New Promus. The Board of Directors of New Promus will
consist of 14 persons (with Doubletree and Promus each selecting seven members)
and will have an Executive Committee which will initially be comprised of Mr.
Schultz, Richard J. Ferris, Michael D. Rose and Peter V. Ueberroth. In addition,
Mr. Kelleher will be an ex-officio member of the Executive Committee. See
"--Directors and Executive Officers."
 
    Management of Doubletree and Promus are jointly reviewing the two companies'
operations in order to develop plans and proposals regarding the integration and
combination of all functional areas of the combined business. The goal of
management of Doubletree and Promus is to complete its transition plan prior to
the consummation of the Merger, so that the plan may be implemented as soon
thereafter as possible.
 
    Management of Doubletree and Promus believe that the Merger will create one
of the premier hotel management and franchising companies in the United States,
with the goal of becoming one of the world's premier hotel companies.
 
BUSINESS AND STRATEGY
 
    As a result of the Merger, New Promus will be one of the largest lodging
companies in the U.S., with approximately $5 billion in annual system-wide
revenues under management or franchise. As of September 30, 1997, on a pro forma
basis, New Promus would have owned, operated or franchised 1,180 hotels, with
approximately 177,000 rooms. In addition, New Promus would have had more than
40,000 employees in all regions of the United States and its major markets, as
well as other selected locations in Canada, Latin America and Asia. In addition,
on a pro forma basis for the year ended December 31, 1996, New Promus would have
had revenues of $560 million, operating income of $165 million and net income of
$90.7 million.
 
    New Promus's principal business strategy will be to provide its hotel owners
with high quality, value-based hotel management and franchise services designed
to improve hotel profitability and to deliver excellent service to every hotel
guest, every time. As part of implementing this strategy:
 
    - New Promus will seek to maintain its competitive position in the
      marketplace by providing strategic distribution of its brands in key
      segments of the industry. These brands, which will initially include
      Doubletree Hotels, Embassy Suites, Doubletree Guest Suites, Homewood
      Suites, Club Hotels by Doubletree, Hampton Inn, Hampton Inn & Suites and
      Red Lion Hotels & Inns, provide hotel owners and guests with high quality
      products across all major segments of the industry other than the luxury
      segment.
 
    - New Promus will focus on delivering to its hotel owners high quality
      management and franchising services designed to increase revenues and
      maximize hotel operating profitability. The combined company will seek to
      increase revenues by strengthening its brands through continued growth in
      the number of hotels in its systems and continued high levels of service.
      The combined company will seek to maintain high operating margins by
      leveraging its increased size to provide purchasing services to hotel
      owners at favorable prices, by continuing to focus on minimizing the costs
      associated with operating under its brand names, and by promoting employee
      productivity and morale through its employee empowerment programs.
 
                                       50
<PAGE>
    - New Promus will seek to maximize hotel performance and thus the underlying
      asset value of the hotel real estate it owns. New Promus expects to
      realize this value through periodic disposition of such hotel real estate.
 
    - The value of New Promus's product offerings will be strengthened by
      Promus's 100% Satisfaction Guarantee program and Doubletree's CARE
      program. Management of Doubletree and Promus believe that these programs
      lead to higher guest satisfaction, greater productivity, more guest
      loyalty and thus higher brand equity value.
 
    - New Promus will focus on enhancing the reputation of both Doubletree and
      Promus as hotel employers of choice. By continuing to enhance an
      employee-focused work environment which results in increased employee
      retention, New Promus will be able to attract high quality, customer-
      oriented employees focused on the best possible guest experience.
 
    New Promus's growth strategy will focus on five areas: (a) improving
comparable hotel results; (b) increasing the number of rooms under management or
franchise; (c) acquiring other hotel companies; (d) expanding the number and
type of products offered; and (e) broadening the support services it offers to
its hotel owners.
 
    Management of Doubletree and Promus believe that the Merger will strengthen
the competitive position of New Promus and will generate several benefits as it
implements the New Promus growth strategy, including:
 
    - New Promus will bring together two proven management teams with
      complementary strengths. Doubletree is primarily a management company that
      has grown its business through the conversion of existing hotels to
      Doubletree's management and, where appropriate, its brands. Doubletree has
      also achieved significant growth through major acquisitions of other hotel
      companies. Promus is primarily a franchise company that has grown its
      brands through new hotel development by its franchisees. Management of
      Doubletree and Promus believes that their combined strengths in
      franchising, conversions, hotel company acquisitions and ground-up
      development by its franchisees will enable New Promus to more effectively
      grow all of its brands and its management and franchise business.
 
    - New Promus will be able to offer its hotel owners and guests hotel
      products in key segments of the lodging industry. Management of Doubletree
      and Promus believes that these product offerings will enhance the combined
      company's ability to cross sell its products to existing owners and
      franchisees, will provide diversification in order to more effectively
      adapt to changes in the supply and demand for these products, and will
      create more opportunities to convert existing hotels to its management or
      brand.
 
    - Doubletree and Promus both have extensive relationships with hotel real
      estate investors, and have entered into a number of strategic alliances
      designed to enhance each company's growth strategies. These relationships,
      coupled with the combined company's financial strength, should allow New
      Promus to compete more aggressively for hotels to be converted to its
      management and one of its brands.
 
    - Although New Promus will be one of the largest lodging companies in the
      U.S., the combined company will have a significant number of diverse
      growth opportunities to pursue. First, there are many geographic markets
      that Doubletree Hotels has not penetrated. The growth of Doubletree
      managed and franchised hotels will be a primary initiative of the combined
      company. Second, although Embassy Suites and Doubletree Guest Suites are
      the two largest full service, all-suite hotel brands in the lodging
      industry, these product types continue to be underrepresented in the
      industry as a whole. Management of Doubletree and Promus believes that
      investors will pursue these brands first as they consider ground-up
      development opportunities of first class full service properties, because
      of the all-suite concept's inherent competitive advantage. Third, Homewood
      Suites and
 
                                       51
<PAGE>
      Club Hotels by Doubletree are relatively new brands, competing in two
      rapidly-growing segments, upscale extended stay and midprice. Fourth, both
      Doubletree and Promus are in the initial stages of targeting growth
      opportunities in international markets, in the luxury segment and in
      vacation interval ownership resorts. Management of Doubletree and Promus
      believe that New Promus will be able to leverage its management,
      development and franchising expertise to penetrate these potential markets
      more quickly.
 
    - New Promus will realize substantial synergies and cost savings from the
      merger through the combination of reservation systems, information systems
      development and maintenance and other corporate support functions. On a
      pro forma basis giving effect to the Merger, Doubletree and Promus expect
      that the Merger will create synergies and cost savings of $15 million to
      $20 million annually, which amounts represent approximately 18% to 24% of
      the current annualized pro forma general and administrative expenses of
      Doubletree and Promus taken together. Additionally, the increased
      purchasing power of New Promus will provide the opportunity to expand
      existing preferred vendor programs and to introduce new programs.
 
    - New Promus would have had a pro forma book value of $1.1 billion and a
      long-term debt to total capitalization ratio of approximately 36% as of
      September 30, 1997. For the nine months ended September 30, 1997, New
      Promus would have had EBITDA of $342 million and a ratio of EBITDA to
      interest expense of 6.3x. Management of Doubletree and Promus believe that
      New Promus's financial condition and cash flow will enhance its ability to
      execute its growth strategies.
 
HOTEL PROPERTIES
 
    The following tables present certain hotel information with respect to
Doubletree and Promus in all of North America and in each of eight geographic
regions: New England (MAINE, NEW HAMPSHIRE, VERMONT, MASSACHUSETTS, RHODE ISLAND
AND CONNECTICUT), Middle Atlantic (NEW YORK, NEW JERSEY, PENNSYLVANIA, DELAWARE,
MARYLAND, DISTRICT OF COLUMBIA, VIRGINIA AND WEST VIRGINIA), Mountain (MONTANA,
IDAHO, WYOMING, COLORADO, UTAH AND NEVADA), Pacific (WASHINGTON, OREGON,
CALIFORNIA, ALASKA AND HAWAII), Midwest (OHIO, INDIANA, ILLINOIS, MICHIGAN AND
WISCONSIN), Plains (MINNESOTA, IOWA, MISSOURI, NORTH DAKOTA, SOUTH DAKOTA,
NEBRASKA AND KANSAS), Southeast (NORTH CAROLINA, SOUTH CAROLINA, GEORGIA,
FLORIDA, KENTUCKY, TENNESSEE, ALABAMA, MISSISSIPPI, ARKANSAS AND LOUISIANA) and
Southwest (OKLAHOMA, TEXAS, NEW MEXICO AND ARIZONA).
 
TOTAL NEW PROMUS HOTEL PORTFOLIO
 
<TABLE>
<CAPTION>
                                                                                      NINE MONTHS ENDED SEPTEMBER 30, 1997(1)
                                                     AS OF SEPTEMBER 30, 1997
                                                  ------------------------------  -----------------------------------------------
                                                     NUMBER OF       NUMBER OF      OCCUPANCY    AVERAGE DAILY
                                                      HOTELS       ROOMS/SUITES    PERCENTAGE        RATE          REVPAR/S(3)
                                                  ---------------  -------------  -------------  -------------  -----------------
<S>                                               <C>              <C>            <C>            <C>            <C>
  Doubletree Full-Service(2)....................           103          30,720           73.6%     $   95.31        $   70.16
  Doubletree Guest Suites.......................            42           8,980           77.7         123.38            95.92
  Club Hotels by Doubletree.....................            21           4,335           69.7(4)       71.56(4)         49.89(4)
                                                         -----     -------------
    Total Doubletree Brand Hotels...............           166          44,035
                                                         -----     -------------
  Red Lion Hotels & Inns(2).....................            16           2,853           69.6          71.04            49.46
  Non-Doubletree Brand Hotels...................            76          12,171           76.5          78.77            60.22
                                                         -----     -------------
    Total Doubletree Hotel Portfolio............           258          59,059
                                                         -----     -------------
                                                         -----     -------------
  Embassy Suites................................           137          33,186           76.8         113.52            87.19
  Hampton Inn...................................           707          76,012           74.6          64.27            47.96
  Hampton Inn & Suites..........................            28           3,089           72.5          71.42            51.75
  Homewood Suites...............................            50           5,180           81.1          92.17            74.74
                                                         -----     -------------
    Total Promus Hotels(5)......................           922         117,467
                                                         -----     -------------
                                                         -----     -------------
    TOTAL COMBINED HOTEL PORTFOLIO..............         1,180         176,526
                                                         -----     -------------
                                                         -----     -------------
</TABLE>
 
                                                          (FOOTNOTES ON PAGE 56)
 
                                       52
<PAGE>
NEW ENGLAND(6)
 
<TABLE>
<CAPTION>
                                                                                        NINE MONTHS ENDED SEPTEMBER 30, 1997(1)
                                                       AS OF SEPTEMBER 30, 1997
                                                    ------------------------------  -----------------------------------------------
                                                      NUMBER OF       NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                       HOTELS       ROOMS/SUITES     PERCENTAGE        RATE          REVPAR/S(3)
                                                    -------------  ---------------  -------------  -------------  -----------------
<S>                                                 <C>            <C>              <C>            <C>            <C>
  Doubletree Full-Service.........................            2             402            64.0%     $  155.06        $   99.30
  Doubletree Guest Suites.........................            2             585            79.4         140.80           111.83
  Club Hotels by Doubletree.......................            1             239              --(1)          --(1)            --(1)
                                                          -----           -----
    Total Doubletree Brand Hotels.................            5           1,226
                                                          -----           -----
  Red Lion Hotels & Inns..........................           --              --              --             --               --
  Non-Doubletree Brand Hotels.....................            5             712            77.8         165.85           129.12
                                                          -----           -----
    Total Doubletree Hotel Portfolio..............           10           1,938
                                                          -----           -----
                                                          -----           -----
  Embassy Suites..................................            2             348            82.6         106.73            88.19
  Hampton Inn.....................................           14           1,816            72.7          68.19            49.58
  Hampton Inn & Suites............................           --              --              --             --               --
  Homewood Suites.................................            1             132            81.5          89.31            72.80
                                                          -----           -----
    Total Promus Hotels(5)........................           17           2,296
                                                          -----           -----
                                                          -----           -----
    TOTAL COMBINED HOTEL PORTFOLIO................           27           4,234
                                                          -----           -----
                                                          -----           -----
</TABLE>
 
MIDDLE ATLANTIC
<TABLE>
<CAPTION>
                                                                                      NINE MONTHS ENDED SEPTEMBER
                                                        AS OF SEPTEMBER 30, 1997              30, 1997(1)
                                                    --------------------------------  ----------------------------
                                                       NUMBER OF        NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                        HOTELS        ROOMS/SUITES     PERCENTAGE        RATE
                                                    ---------------  ---------------  -------------  -------------
<S>                                                 <C>              <C>              <C>            <C>
  Doubletree Full-Service.........................            11            3,815            70.9%     $   98.04
  Doubletree Guest Suites.........................             7            1,541            83.3         151.59
  Club Hotels by Doubletree.......................             4              755              --(1)          --(1)
                                                             ---           ------
    Total Doubletree Brand Hotels.................            22            6,111
                                                             ---           ------
  Red Lion Hotels & Inns..........................            --               --              --             --
  Non-Doubletree Brand Hotels.....................             4              635            73.9          78.58
                                                             ---           ------
    Total Doubletree Hotel Portfolio..............            26            6,746
                                                             ---           ------
                                                             ---           ------
  Embassy Suites..................................            15            3,648            78.3         123.64
  Hampton Inn.....................................           109           12,507            75.9          68.16
  Hampton Inn & Suites............................             5              547            89.3          66.88
  Homewood Suites.................................             5              451            76.8          87.85
                                                             ---           ------
    Total Promus Hotels(5)........................           134           17,153
                                                             ---           ------
                                                             ---           ------
    TOTAL COMBINED HOTEL PORTFOLIO................           160           23,899
                                                             ---           ------
                                                             ---           ------
 
<CAPTION>
                                                       REVPAR/S(3)
                                                    -----------------
<S>                                                 <C>
  Doubletree Full-Service.........................      $   69.47
  Doubletree Guest Suites.........................         126.23
  Club Hotels by Doubletree.......................             --(1)
    Total Doubletree Brand Hotels.................
  Red Lion Hotels & Inns..........................             --
  Non-Doubletree Brand Hotels.....................          58.04
    Total Doubletree Hotel Portfolio..............
  Embassy Suites..................................          96.77
  Hampton Inn.....................................          51.74
  Hampton Inn & Suites............................          59.76
  Homewood Suites.................................          67.47
    Total Promus Hotels(5)........................
    TOTAL COMBINED HOTEL PORTFOLIO................
</TABLE>
 
                                                          (FOOTNOTES ON PAGE 56)
 
                                       53
<PAGE>
MOUNTAIN
 
<TABLE>
<CAPTION>
                                                                                        NINE MONTHS ENDED SEPTEMBER 30, 1997(1)
                                                       AS OF SEPTEMBER 30, 1997
                                                    ------------------------------  -----------------------------------------------
                                                      NUMBER OF       NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                       HOTELS       ROOMS/SUITES     PERCENTAGE        RATE          REVPAR/S(3)
                                                    -------------  ---------------  -------------  -------------  -----------------
<S>                                                 <C>            <C>              <C>            <C>            <C>
  Doubletree Full-Service(2)......................           10           2,869            81.7      $   90.62        $   74.06
  Doubletree Guest Suites.........................           --              --              --             --               --
  Club Hotels by Doubletree.......................            1             158            70.9          70.79            50.20
                                                          -----           -----
    Total Doubletree Brand Hotels.................           11           3,027
                                                          -----           -----
  Red Lion Hotels & Inns(2).......................            2             140            61.5          56.46            34.74
  Non-Doubletree Brand Hotels.....................            3             386            81.1          61.74            50.07
                                                          -----           -----
    Total Doubletree Hotel Portfolio..............           16           3,553
                                                          -----           -----
                                                          -----           -----
  Embassy Suites..................................            7           1,510            77.4         110.62            85.63
  Hampton Inn.....................................           26           3,062            78.2          60.95            47.64
  Hampton Inn & Suites............................            2             181              --(1)          --(1)            --(1)
  Homewood Suites.................................            2             210            83.9         115.23            96.70
                                                          -----           -----
    Total Promus Hotels(5)........................           37           4,963
                                                          -----           -----
                                                          -----           -----
    TOTAL COMBINED HOTEL PORTFOLIO................           53           8,516
                                                          -----           -----
                                                          -----           -----
</TABLE>
 
PACIFIC
<TABLE>
<CAPTION>
                                                                                      NINE MONTHS ENDED SEPTEMBER
                                                        AS OF SEPTEMBER 30, 1997              30, 1997(1)
                                                    --------------------------------  ----------------------------
                                                       NUMBER OF        NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                        HOTELS        ROOMS/SUITES     PERCENTAGE        RATE
                                                    ---------------  ---------------  -------------  -------------
<S>                                                 <C>              <C>              <C>            <C>
  Doubletree Full-Service(2)......................            42           12,303            76.2%     $   94.00
  Doubletree Guest Suites.........................             3              674            79.4         120.42
  Club Hotels by Doubletree.......................             4              765              --(1)          --(1)
                                                             ---           ------
    Total Doubletree Brand Hotels.................            49           13,742
                                                             ---           ------
  Red Lion Hotels & Inns(2).......................            12            2,094            69.4          71.63
  Non-Doubletree Brand Hotels.....................             7            1,433            91.0          94.16
                                                             ---           ------
    Total Doubletree Hotel Portfolio..............            68           17,269
                                                             ---           ------
                                                             ---           ------
  Embassy Suites..................................            31            8,065            75.5         121.46
  Hampton Inn.....................................            23            2,729            75.5          63.96
  Hampton Inn & Suites............................            --               --              --             --
  Homewood Suites.................................             3              350            86.3         108.95
                                                             ---           ------
    Total Promus Hotels(5)........................            57           11,144
                                                             ---           ------
                                                             ---           ------
    TOTAL COMBINED HOTEL PORTFOLIO................           125           28,413
                                                             ---           ------
                                                             ---           ------
 
<CAPTION>
                                                       REVPAR/S(3)
                                                    -----------------
<S>                                                 <C>
  Doubletree Full-Service(2)......................      $   71.65
  Doubletree Guest Suites.........................          95.57
  Club Hotels by Doubletree.......................             --(1)
    Total Doubletree Brand Hotels.................
  Red Lion Hotels & Inns(2).......................          49.73
  Non-Doubletree Brand Hotels.....................          85.65
    Total Doubletree Hotel Portfolio..............
  Embassy Suites..................................          91.74
  Hampton Inn.....................................          48.30
  Hampton Inn & Suites............................             --
  Homewood Suites.................................          94.05
    Total Promus Hotels(5)........................
    TOTAL COMBINED HOTEL PORTFOLIO................
</TABLE>
 
                                                          (FOOTNOTES ON PAGE 56)
 
                                       54
<PAGE>
MIDWEST
<TABLE>
<CAPTION>
                                                                                      NINE MONTHS ENDED SEPTEMBER
                                                        AS OF SEPTEMBER 30, 1997              30, 1997(1)
                                                    --------------------------------  ----------------------------
                                                       NUMBER OF        NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                        HOTELS        ROOMS/SUITES     PERCENTAGE        RATE
                                                    ---------------  ---------------  -------------  -------------
<S>                                                 <C>              <C>              <C>            <C>
  Doubletree Full-Service(2)......................             4            1,111              --%(1)   $      --(1)
  Doubletree Guest Suites.........................             9            1,939            74.2         112.67
  Club Hotels by Doubletree.......................             1              242              --(1)          --(1)
                                                             ---           ------
    Total Doubletree Brand Hotels.................            14            3,292
                                                             ---           ------
  Red Lion Hotels & Inns(2).......................            --               --              --             --
  Non-Doubletree Brand Hotels.....................            11            1,426            75.4          71.57
                                                             ---           ------
    Total Doubletree Hotel Portfolio..............            25            4,718
                                                             ---           ------
                                                             ---           ------
  Embassy Suites..................................            12            3,025            76.3         120.08
  Hampton Inn.....................................           111           11,418            73.3          64.81
  Hampton Inn & Suites............................             4              377              --(1)          --(1)
  Homewood Suites.................................            10              944            81.5          81.74
                                                             ---           ------
    Total Promus Hotels(5)........................           137           15,764
                                                             ---           ------
                                                             ---           ------
    TOTAL COMBINED HOTEL PORTFOLIO................           162           20,482
                                                             ---           ------
                                                             ---           ------
 
<CAPTION>
                                                       REVPAR/S(3)
                                                    -----------------
<S>                                                 <C>
  Doubletree Full-Service(2)......................      $      --(1)
  Doubletree Guest Suites.........................          83.61
  Club Hotels by Doubletree.......................             --(1)
    Total Doubletree Brand Hotels.................
  Red Lion Hotels & Inns(2).......................             --
  Non-Doubletree Brand Hotels.....................          53.97
    Total Doubletree Hotel Portfolio..............
  Embassy Suites..................................          91.59
  Hampton Inn.....................................          47.52
  Hampton Inn & Suites............................             --(1)
  Homewood Suites.................................          66.65
    Total Promus Hotels(5)........................
    TOTAL COMBINED HOTEL PORTFOLIO................
</TABLE>
 
PLAINS
 
<TABLE>
<CAPTION>
                                                                                        NINE MONTHS ENDED SEPTEMBER 30, 1997(1)
                                                       AS OF SEPTEMBER 30, 1997
                                                    ------------------------------  -----------------------------------------------
                                                      NUMBER OF       NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                       HOTELS       ROOMS/SUITES     PERCENTAGE        RATE          REVPAR/S(3)
                                                    -------------  ---------------  -------------  -------------  -----------------
<S>                                                 <C>            <C>              <C>            <C>            <C>
  Doubletree Full-Service(2)......................            5           1,612            75.5%     $   91.56        $   69.11
  Doubletree Guest Suites.........................            3             638              --(1)          --(1)            --(1)
  Club Hotels by Doubletree.......................            1             181              --(1)          --(1)            --(1)
                                                          -----          ------
    Total Doubletree Brand Hotels.................            9           2,431
                                                          -----          ------
  Red Lion Hotels & Inns(2).......................           --              --              --             --               --
  Non-Doubletree Brand Hotels.....................            7             995            78.0          71.27            55.62
                                                          -----          ------
    Total Doubletree Hotel Portfolio..............           16           3,426
                                                          -----          ------
                                                          -----          ------
  Embassy Suites..................................           10           2,377            75.0         103.06            77.30
  Hampton Inn.....................................           45           5,082            69.4          63.49            44.09
  Hampton Inn & Suites............................           --              --              --             --               --
  Homewood Suites.................................            3             319            68.9          72.91            50.25
                                                          -----          ------
    Total Promus Hotels(5)........................           58           7,778
                                                          -----          ------
                                                          -----          ------
    TOTAL COMBINED HOTEL PORTFOLIO................           74          11,204
                                                          -----          ------
                                                          -----          ------
</TABLE>
 
                                                          (FOOTNOTES ON PAGE 56)
 
                                       55
<PAGE>
SOUTHEAST
<TABLE>
<CAPTION>
                                                                                      NINE MONTHS ENDED SEPTEMBER
                                                        AS OF SEPTEMBER 30, 1997              30, 1997(1)
                                                    --------------------------------  ----------------------------
                                                       NUMBER OF        NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                        HOTELS        ROOMS/SUITES     PERCENTAGE        RATE
                                                    ---------------  ---------------  -------------  -------------
<S>                                                 <C>              <C>              <C>            <C>
  Doubletree Full-Service.........................            12            3,344            70.9%     $   91.30
  Doubletree Guest Suites.........................            14            2,467            73.4         106.94
  Club Hotels by Doubletree(7)....................             6            1,441            68.6          72.31
                                                             ---           ------
    Total Doubletree Brand Hotels.................            32            7,252
                                                             ---           ------
  Red Lion Hotels & Inns..........................            --               --              --             --
  Non-Doubletree Brand Hotels.....................            25            4,513            73.8          68.42
                                                             ---           ------
    Total Doubletree Hotel Portfolio..............            57           11,765
                                                             ---           ------
                                                             ---           ------
  Embassy Suites..................................            31            7,545            78.0         113.36
  Hampton Inn.....................................           298           30,629            75.7          63.04
  Hampton Inn & Suites............................            14            1,581            63.3          78.37
  Homewood Suites.................................            15            1,546            81.9          92.63
                                                             ---           ------
    Total Promus Hotels(5)........................           358           41,301
                                                             ---           ------
                                                             ---           ------
    TOTAL COMBINED HOTEL PORTFOLIO................           415           53,066
                                                             ---           ------
                                                             ---           ------
 
<CAPTION>
                                                       REVPAR/S(3)
                                                    -----------------
<S>                                                 <C>
  Doubletree Full-Service.........................      $   64.75
  Doubletree Guest Suites.........................          78.49
  Club Hotels by Doubletree(7)....................          49.60
    Total Doubletree Brand Hotels.................
  Red Lion Hotels & Inns..........................             --
  Non-Doubletree Brand Hotels.....................          50.49
    Total Doubletree Hotel Portfolio..............
  Embassy Suites..................................          88.46
  Hampton Inn.....................................          47.74
  Hampton Inn & Suites............................          49.64
  Homewood Suites.................................          75.89
    Total Promus Hotels(5)........................
    TOTAL COMBINED HOTEL PORTFOLIO................
</TABLE>
 
SOUTHWEST(6)
<TABLE>
<CAPTION>
                                                                                      NINE MONTHS ENDED SEPTEMBER
                                                        AS OF SEPTEMBER 30, 1997              30, 1997(1)
                                                    --------------------------------  ----------------------------
                                                       NUMBER OF        NUMBER OF       OCCUPANCY    AVERAGE DAILY
                                                        HOTELS        ROOMS/SUITES     PERCENTAGE        RATE
                                                    ---------------  ---------------  -------------  -------------
<S>                                                 <C>              <C>              <C>            <C>
  Doubletree Full-Service(2)......................            14            4,709            71.3%     $   95.57
  Doubletree Guest Suites.........................             4            1,136            83.9         114.15
  Club Hotels by Doubletree.......................             3              554              --(1)          --(1)
                                                             ---           ------
    Total Doubletree Brand Hotels.................            21            6,399
                                                             ---           ------
  Red Lion Hotels & Inns(2).......................             2              619            74.8          72.79
  Non-Doubletree Brand Hotels.....................            14            2,071            80.3          66.72
                                                             ---           ------
    Total Doubletree Hotel Portfolio..............            37            9,089
                                                             ---           ------
                                                             ---           ------
  Embassy Suites..................................            24            5,350            76.1         101.05
  Hampton Inn.....................................            72            7,686            70.6          62.52
  Hampton Inn & Suites............................             2              299            73.7          67.28
  Homewood Suites.................................            11            1,228            79.6          99.10
                                                             ---           ------
    Total Promus Hotels(5)........................           109           14,563
                                                             ---           ------
                                                             ---           ------
    TOTAL COMBINED HOTEL PORTFOLIO................           146           23,652
                                                             ---           ------
                                                             ---           ------
 
<CAPTION>
                                                       REVPAR/S(3)
                                                    -----------------
<S>                                                 <C>
  Doubletree Full-Service(2)......................      $   68.17
  Doubletree Guest Suites.........................          95.73
  Club Hotels by Doubletree.......................             --(1)
    Total Doubletree Brand Hotels.................
  Red Lion Hotels & Inns(2).......................          54.48
  Non-Doubletree Brand Hotels.....................          53.60
    Total Doubletree Hotel Portfolio..............
  Embassy Suites..................................          76.91
  Hampton Inn.....................................          44.17
  Hampton Inn & Suites............................          49.60
  Homewood Suites.................................          78.89
    Total Promus Hotels(5)........................
    TOTAL COMBINED HOTEL PORTFOLIO................
</TABLE>
 
- ------------------------
 
(1) Revenue statistics are for comparable hotels, which includes only those
    hotels in the Doubletree or Promus systems for the entire period from
    January 1, 1996 through September 30, 1997. Doubletree revenue statistics
    exclude franchised hotels. Promus revenue statistics exclude hotels that had
    room additions.
 
(2) During the nine months ended September 30, 1997, 40 Red Lion hotels were
    converted to Doubletree full service hotels. The converted hotels are
    included in the number of Doubletree full service hotels and rooms at
    September 30, 1997. Revenue statistics for the converted hotels are included
    in the Doubletree full service hotel statistics.
 
(3) Revenue per available room/suite is the product of the occupancy percentage
    times the average daily rate.
 
(4) Includes the results for only two properties.
 
(5) Excludes four vacation interval resorts operated by Promus.
 
(6) The geographical regional data presented above excludes three Doubletree
    hotels, with an agregate of 555 rooms, located outside at the United Sates
    and 15 Promus hotels, with an aggregate of 2,505 rooms/suites, located
    outside of the United States.
 
(7) Includes the results for only one property.
 
                                       56
<PAGE>
DIRECTORS AND EXECUTIVE OFFICERS
 
    Following the Merger, the Board of Directors of New Promus is expected to
consist of the following 14 persons: (a) Richard J. Ferris, Priscilla Florence,
Dale F. Frey, Richard M. Kelleher, Michael W. Michelson, John H. Myers and Peter
V. Ueberroth (all of whom were designated by Doubletree), and (b) Christopher W.
Hart, C. Warren Neel, Michael D. Rose, Michael I. Roth, Raymond E. Schultz, Jay
Stein and Ronald Terry (all of whom were designated by Promus). New Promus will
also have an Executive Committee of the Board of Directors, which will initially
be comprised of Mr. Schultz, Mr. Ferris, Mr. Rose and Mr. Ueberroth. Mr.
Kelleher will be an ex-officio member of the Executive Committee.
 
    For information regarding the business experience of Messrs. Ferris, Frey,
Hart, Kelleher, Michelson, Myers, Neel, Rose, Roth, Schultz, Stein, Terry and
Ueberroth, see "Where You Can Find More Information." Ms. Florence, 56, has
served as a director of Doubletree since May 1997. Since 1985, Ms. Florence has
been the president and owner of Priscilla Florence & Associates and Boston's
Card Stores, Inc. From 1985 to 1994, Ms. Florence served as Vice President,
Human Resources of World Cup USA, 1994, Inc. She served as a director of Adia
Services Inc. from 1993 to 1994.
 
    The Board of Directors of New Promus will be divided into three classes.
Class I shall consist of four directors, and each of Class II and Class III will
consist of five directors. Class I directors will be initially elected for a
term expiring at the first annual meeting of New Promus Stockholders. Class II
directors will be initially elected for a term expiring at the second annual
meeting of New Promus Stockholders. Class III directors will be initially
elected for a term expiring at the third annual meeting of New Promus
Stockholders. Successors to the class of directors whose term expires at the
annual meeting will be elected for a three-year term. In no case will a decrease
in the number of directors shorten the term of any incumbent director.
 
    There will be two, two, and three Initial Doubletree Directors in Class I,
II and III of New Promus's Board of Directors and there will be two, three, and
two Initial Promus Directors in Class I, II and III, respectively, of New
Promus's Board of Directors. The Bylaws of New Promus provide that until
December 31, 2002 the Board of Directors and each committee of the Board of
Directors of New Promus shall consist of an equal number of Doubletree Directors
and Promus Directors. Any change to these provisions of the Bylaws or increase
in the size of the Board of Directors or its committees by the Board of
Directors of New Promus will require the approval of 75% of the members of the
New Promus Board of Directors.
 
    At the Effective Time, pursuant to the terms of the employment agreements
described above under "--Interests of Certain Persons in the Merger--Employment
Agreements," (i) Raymond E. Schultz, the current President and Chief Executive
Officer of Promus, will become Chief Executive Officer and Chairman of the Board
of New Promus; (ii) Richard M. Kelleher, the current President and Chief
Executive Officer of Doubletree, will become the President and Chief Operating
Officer of New Promus, (iii) William L. Perocchi, the current Executive Vice
President and Chief Financial Officer of Doubletree, will become the Executive
Vice President and Chief Financial Officer of New Promus and (iv) Thomas L.
Keltner, the current Executive Vice President and Chief Development Officer of
Promus, will become the Executive Vice President and Chief Development Officer
of New Promus. Mr. Schultz will continue as Chairman of the Board and Chief
Executive Officer of New Promus until his retirement no later than December 31,
1999 and, pursuant to the terms of Mr. Kelleher's employment agreement and
subject to the Bylaws of New Promus, Mr. Kelleher will succeed Mr. Schultz as
Chairman of the Board and Chief Executive Officer of New Promus. The provisions
of the New Promus Bylaws governing Mr. Kelleher's succession to Mr. Schultz as
Chairman of the Board and Chief Executive Officer of New Promus may only be
amended, altered or repealed through a vote by 75% of the Board of Directors of
New Promus.
 
                                       57
<PAGE>
                              THE MERGER AGREEMENT
 
    THE FOLLOWING IS A SUMMARY OF THE MATERIAL TERMS OF THE MERGER AGREEMENT, A
COPY OF WHICH IS ATTACHED AS ANNEX A TO THIS JOINT PROXY STATEMENT/PROSPECTUS
AND IS INCORPORATED HEREIN BY REFERENCE. SUCH SUMMARY IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO THE MERGER AGREEMENT. STOCKHOLDERS OF DOUBLETREE AND
PROMUS ARE URGED TO READ THE MERGER AGREEMENT IN ITS ENTIRETY FOR A MORE
COMPLETE DESCRIPTION OF THE TERMS AND CONDITIONS OF THE MERGER.
 
THE MERGER
 
    The Merger Agreement provides that, following the approval of the Merger by
the stockholders of Doubletree and Promus and the satisfaction or waiver of the
other conditions to the Merger, Doubletree and Promus will become wholly-owned
subsidiaries of New Promus, which will be renamed "Promus Hotel Corporation",
and the holders of Doubletree Common Stock and Promus Common Stock will become
holders of New Promus Common Stock.
 
    If the Merger Agreement is approved by the stockholders of Doubletree and
Promus, and the other conditions to the Merger are satisfied or waived, the
Closing will take place on the second business day (the "Closing Date")
following the date on which the last of the conditions is satisfied or waived,
or at such other time and date to which Doubletree and Promus mutually agree. On
the Closing Date, Promus and Doubletree will cause certificates of merger to be
filed with the Secretary of State of the State of Delaware as provided in
Section 251 of the General Corporation Law of the State of Delaware (the
"DGCL"). The Merger will become effective upon the filing of such certificates
of merger or at such later time as is specified therein. See "The Merger
Agreement--Conditions to Obligations to Effect the Merger." Subject to the
satisfaction (or waiver) of the other conditions to the obligations of
Doubletree and Promus to consummate the Merger, it is presently expected that
the Merger will be consummated by the end of 1997.
 
CONVERSION OF SHARES
 
    The Merger Agreement provides that the Merger will be effected by merger of
two newly-formed subsidiaries of New Promus, Doubletree Sub and Promus Sub, with
and into Doubletree and Promus, respectively, in which Doubletree and Promus
will be the surviving corporations.
 
    At the Effective Time, in the Doubletree Merger: (i) each issued and
outstanding share of Doubletree Common Stock (other than shares that are
canceled as described below) will be converted into one share of fully paid and
nonassessable share of New Promus Common Stock; (ii) each issued and outstanding
share of common stock of Doubletree Sub will be converted into one share of
common stock of Doubletree, the surviving corporation in the Doubletree Merger;
and (iii) each share of Doubletree Common Stock that is owned by Doubletree as
treasury stock or is owned by Promus or any of its wholly-owned subsidiaries
will be canceled and will cease to exist and no stock of New Promus or other
consideration shall be delivered in exchange therefor.
 
    At the Effective Time, in the Promus Merger: (i) each issued and outstanding
share of Promus Common Stock (other than shares that are canceled as described
below) will be converted into 0.925 shares of fully paid and nonassessable
shares of New Promus Common Stock; (ii) each issued and outstanding share of
common stock of Promus Sub will be converted into one share of Common Stock of
Promus, the surviving corporation in the Promus Merger; and (iii) each share of
Promus Common Stock that is owned by Promus as treasury stock or is owned by
Doubletree or any of its wholly-owned subsidiaries will be canceled and will
cease to exist and no stock of New Promus or other consideration shall be
delivered in exchange therefor.
 
    Consequently, as a result of the Mergers, Doubletree and Promus will become
wholly owned subsidiaries of New Promus and holders of Doubletree Common Stock
and Promus Common Stock will become holders of New Promus Common Stock. At the
Effective Time, each share of New Promus
 
                                       58
<PAGE>
Common Stock issued and outstanding immediately prior to the Effective Time will
be surrendered and canceled, and the amount paid by Doubletree and Promus for
their shares of New Promus Common Stock will be returned to them by New Promus.
 
    Based upon the number of shares of common stock of Doubletree and Promus
outstanding on the record date for the Doubletree Special Meeting and the record
date for the Promus Special Meeting, respectively, and the exchange ratios
described above, Doubletree's current stockholders will own approximately 46%
and Promus's current stockholders will own approximately 54% of New Promus
Common Stock that will be outstanding upon completion of the Merger.
EXCHANGE OF STOCK CERTIFICATES
 
    As soon as reasonably practicable after the Effective Time, an exchange
agent will mail to each holder of record of a certificate or certificates which
immediately prior to the Effective Time represented outstanding shares of
Doubletree Common Stock or Promus Common Stock, a letter of transmittal and
instructions for use in effecting the surrender of such certificates in exchange
for shares of New Promus Common Stock. Upon surrender of a certificate for
cancellation to the exchange agent, together with such letter of transmittal,
duly executed, the holder of such certificate will be entitled to receive in
exchange therefor that number of whole shares of New Promus Common Stock and the
amount of any cash payable in lieu of fractional shares of New Promus Common
Stock and other dividends or distributions which such holder is entitled to
receive as provided in the next three paragraphs, and the certificates so
surrendered will promptly be canceled. The shares of New Promus Common Stock to
be issued in exchange for certificates which immediately prior to the Effective
Time represented shares of Doubletree Common Stock or Promus Common Stock will
be held in book-entry form on the records of New Promus's Registrar and Transfer
Agent, First Union National Bank. Holders of New Promus Common Stock may receive
a certificate representing their shares of New Promus Common Stock by following
the instructions in the letter of transmittal or by requesting a certificate
from New Promus's Registrar and Transfer Agent.
 
    NO FURTHER OWNERSHIP RIGHTS IN DOUBLETREE COMMON STOCK OR PROMUS COMMON
STOCK.  All shares of New Promus Common Stock (and cash in lieu of fractional
shares in the case of Promus Common Stock) issued upon the surrender for
exchange of certificates which immediately prior to the Effective Time
represented shares of Doubletree Common Stock or Promus Common Stock will be
deemed to have been issued (and paid) in full satisfaction of all rights
pertaining to the shares of Doubletree Common Stock or Promus Common Stock
theretofore represented by such certificates, subject, however, to the
obligations of the surviving corporations in the Doubletree Merger and the
Promus Merger to pay any dividends or make any other distributions with a record
date prior to the Effective Time which may have been declared or made by
Doubletree on such shares of Doubletree Common Stock or by Promus on such shares
of Promus Common Stock prior to the date of the Merger Agreement and which
remain unpaid at the Effective Time, and from and after the Effective Time there
shall be no further registration of transfers on the stock transfer books of the
surviving corporations in the Doubletree Merger and the Promus Merger, as the
case may be, of the shares of Doubletree Common Stock or Promus Common Stock,
respectively, which were outstanding immediately prior to the Effective Time.
If, after the Effective Time, certificates which immediately prior to the
Effective Time represented shares of Doubletree Common Stock or Promus Common
Stock are presented to one of such surviving corporations or New Promus for any
reason, such certificates will be canceled and exchanged in the manner described
above.
 
    FRACTIONAL SHARES.  No fractional shares of New Promus Common Stock will be
issued in the Merger. In lieu of any such fractional shares, each holder of
shares of Promus Common Stock outstanding immediately prior to the Effective
Time exchanged pursuant to the Promus Merger who would otherwise have been
entitled to receive a fraction of a share of New Promus Common Stock (after
taking into account all certificates representing shares of Promus Common Stock
delivered by such holder) will receive, in lieu thereof, cash (without interest)
in an amount equal to such fractional part of a share of New Promus Common Stock
multiplied by the per share sales price of New Promus Common Stock (as
 
                                       59
<PAGE>
reported on the NYSE Composite Tape) on the closing of the first day of
regular-way trading of New Promus Common Stock on the NYSE after the Effective
Time.
 
    DIVIDENDS AND DISTRIBUTIONS.  No dividends or other distributions declared
or made after the Effective Time with respect to New Promus Common Stock with a
record date after the Effective Time will be paid to the holder of any
unsurrendered certificate representing shares of Doubletree Common Stock or
Promus Common Stock with respect to the shares of New Promus Common Stock the
holder thereof is entitled to receive in respect thereof and no cash payment in
lieu of fractional shares will be paid to any such holder until the holder of
record of such certificate shall surrender such certificate to New Promus as
described above. Subject to the effect of applicable laws, following surrender
of any such certificate, there will be paid to the record holder of the
certificates representing whole shares of New Promus Common Stock issued in
exchange therefor, without interest, (i) at the time of such surrender, the
amount of any cash payable in lieu of a fractional share of New Promus Common
Stock to which such holder is entitled under "--Fractional Shares" above and an
amount equal to the amount of dividends or other distributions with a record
date after the Effective Time previously paid with respect to whole shares of
New Promus Common Stock, and (ii) at the appropriate payment date, an amount
equal to the amount of dividends or other distributions with a record date after
the Effective Time but prior to surrender and a payment date subsequent to
surrender payable with respect to whole shares of New Promus Common Stock, in
each case without interest.
 
    FAILURE TO EXCHANGE.  Any shares of New Promus Common Stock, and any portion
of monies from which cash payments in lieu of fractional shares of Promus Common
Stock and any dividends or distributions on shares of New Promus Common Stock
will be made, which remain undistributed to the former stockholders of
Doubletree or Promus for 180 days after the Effective Time will be delivered to
New Promus upon demand, and any former stockholder of Doubletree or Promus who
has not previously exchanged certificates which immediately prior to the
Effective Time represented shares of Doubletree Common Stock or Promus Common
Stock will thereafter look only to New Promus for payment of such former
stockholder's claim for New Promus Common Stock, any cash in lieu of fractional
shares of New Promus Common Stock and any amounts in respect of dividends or
distributions with respect to New Promus Common Stock.
 
    NO LIABILITY.  None of Doubletree, Promus, New Promus or the exchange agent
will be liable to any holder of shares of Doubletree Common Stock or Promus
Common Stock, as the case may be, for any shares of New Promus Common Stock (or
cash in lieu of fractional shares of New Promus Common Stock or any dividends or
distributions with respect thereto) delivered to a public official pursuant to
any applicable abandoned property, escheat or similar law. New Promus and each
of the surviving corporations in the Doubletree Merger and the Promus Merger
will be entitled to deduct and withhold from the consideration otherwise payable
to any holder of certificates which prior to the Effective Time represented
shares of Doubletree Common Stock or Promus Common Stock such amounts as it is
required to deduct and withhold with respect to the making of such payment under
the Code, or any provision of state, local or foreign tax law. To the extent
that amounts are so withheld, such withheld amounts shall be treated as having
been paid to the holder of the shares of Doubletree Common Stock or Promus
Common Stock, as the case may be, in respect of which such deduction and
withholding was made.
 
    LOST CERTIFICATES.  If any certificate which prior to the Effective Time
represented shares of Doubletree Common Stock or Promus Common Stock shall have
been lost, stolen or destroyed, upon the making of an affidavit of that fact by
the person claiming such certificate to be lost, stolen or destroyed and, if
required by New Promus or one of the surviving corporations in the Doubletree
Merger and the Promus Merger, the posting by such person of a bond in such
reasonable amount as New Promus or such surviving corporation may direct as
indemnity against any claim that may be made against it with respect to such
certificate, the exchange agent will issue in exchange for such lost, stolen or
destroyed certificate the shares
 
                                       60
<PAGE>
of New Promus Common Stock and any cash in lieu of fractional shares and unpaid
dividends and distributions on shares of New Promus Common Stock otherwise
deliverable in respect thereof.
 
    HOLDERS OF DOUBLETREE COMMON STOCK OR PROMUS COMMON STOCK SHOULD NOT SEND IN
THEIR CERTIFICATES UNTIL THEY RECEIVE A TRANSMITTAL FORM FROM FIRST UNION
NATIONAL BANK, THE EXCHANGE AGENT THEREFOR.
 
REPRESENTATIONS AND WARRANTIES
 
    The Merger Agreement contains various customary representations and
warranties, subject to identified exceptions, relating to, among other things,
(a) due organization, valid existence and good standing of each of Doubletree,
Promus and their respective subsidiaries and certain similar corporate matters;
(b) the capital structure of each of Doubletree and Promus; (c) the
authorization, execution, delivery and enforceability of the Merger Agreement
and the Stock Option Agreements, the consummation of the transactions
contemplated by the Merger Agreement and the Stock Option Agreements and related
matters; (d) conflicts under charters or by-laws, required consents or approvals
and violations of any instruments or law; (e) documents and financial statements
filed by each of Doubletree and Promus with the SEC and the accuracy of
information contained therein; (f) the absence of undisclosed liabilities; (g)
the absence of certain material adverse events, changes or events; (h) taxes and
tax returns; (i) properties; (j) intellectual property; (k) agreements,
contracts and commitments; (l) litigation; (m) environmental matters and
hazardous materials; (n) employee benefit plans; (o) compliance with laws; (p)
accounting and tax matters relating to the Merger; (q) the accuracy of
information supplied by each of Doubletree and Promus in connection with the
Registration Statement and this Joint Proxy Statement/ Prospectus; (r) labor
matters; (s) insurance; (t) the long-range plans of each of Doubletree and
Promus; (u) opinions of financial advisors; (v) the absence of existing
discussions with other parties; (w) the inapplicability to the Merger of certain
provisions of the DGCL; and (x) the Doubletree Rights Plan and the Promus Rights
Plan.
 
CERTAIN COVENANTS
 
    CONDUCT OF BUSINESS.  Pursuant to the Merger Agreement, each of Doubletree
and Promus has agreed that, during the period from the date of the Merger
Agreement until the Effective Time, except as included on the disclosure
schedules attached to the Merger Agreement or as otherwise consented to in
writing by the other party or as contemplated by the Merger Agreement, it and
each of its respective subsidiaries will: (a) carry on its business in the
usual, regular and ordinary course in substantially the same manner as
previously conducted; (b) pay its debts and taxes when due subject to good faith
disputes over such debts or taxes, and pay or perform other obligations when
due; (c) use reasonable efforts to preserve intact its present business
organization, management team and business relationships; (d) not accelerate,
amend or change the period of exercisability of options or restricted stock
granted under any employee stock plan or authorize cash payments in exchange for
any options granted under any employee stock plan, except as required pursuant
to the plan or any related agreement; (e) not declare or pay any dividends on or
make other distributions in respect of any of its capital stock, not effect
certain other changes in its capitalization, and not purchase or otherwise
acquire, directly or indirectly, any shares of its capital stock except from
former employees, directors and consultants in accordance with agreements
providing for the repurchase of shares in connection with the termination of
service; (f) not issue or sell, or authorize or propose the issuance or sale of,
any shares of its capital stock or securities convertible into shares of its
capital stock, or any subscriptions, rights, warrants or options to acquire or
other agreements obligating it to issue any such shares or other convertible
securities (subject to certain exceptions, including the grant of options
consistent with past practices to employees or directors (up to 25,000 shares
for each of Doubletree and Promus), the issuance of shares upon the exercise of
outstanding stock options and convertible debt and the issuance of capital stock
under the Doubletree Rights Plan or the Promus Rights Plan if required by the
respective terms thereof); (g) not make any material acquisitions; (h) not sell,
lease,
 
                                       61
<PAGE>
license or otherwise dispose of material properties or assets outside the
ordinary course of business; (i) not increase the compensation payable to its
officers or employees (except for increases to non-officer employees consistent
with past practices), grant additional severance or termination pay or enter
into employment or severance agreements, enter into any collective bargaining
agreement (other than as required by law) or establish, adopt, enter into or
amend any plan for the benefit of its directors, officers, or employees; (j) not
amend its certificate of incorporation or bylaws, except as contemplated by the
Merger Agreement; (k) not incur indebtedness for money borrowed other than in
the ordinary course of business; (l) not take any action that would or is
reasonably likely to result in a material breach of any provision of the Merger
Agreement or the Stock Option Agreements or in any of its representations or
warranties set forth in the Merger Agreement or the Stock Option Agreements
being untrue on the Closing Date; (m) not make or rescind any material tax
elections, settle any tax claims or make any material change in its accounting
methods; (n) settle any material litigation relating to the transactions
contemplated by the Merger Agreement; and (o) not take, or agree in writing to
take, any of the actions described in (d) through (n) above.
 
    NO SOLICITATION.  The Merger Agreement provides that Doubletree and Promus
will not, directly or indirectly, through any officer, director, employee,
financial advisor, representative or agent, (i) solicit, initiate or encourage
any inquiries or proposals that constitute, or could reasonably be expected to
lead to, a proposal or offer for a merger, consolidation, business combination,
sale of substantial assets, sale of shares of capital stock (including without
limitation by way of a tender offer) or similar transaction involving such party
or any of its subsidiaries, other than the transactions contemplated by the
Merger Agreement (any of the foregoing inquiries or proposals being referred to
as an "Acquisition Proposal"), (ii) engage in negotiations or discussions
concerning, or provide any non-public information to any person or entity
relating to, any Acquisition Proposal, or (iii) agree to or recommend any
Acquisition Proposal; provided, however, that nothing contained in the Merger
Agreement will prevent Doubletree or Promus or their respective Boards of
Directors from (a) furnishing non-public information to, or entering into
discussions or negotiations with, any person or entity in connection with an
unsolicited bona fide written Acquisition Proposal by such person or entity or
recommending an unsolicited bona fide written Acquisition Proposal to the
stockholders of such party, if and only to the extent that (1) the Board of
Directors of such party believes in good faith (after consultation with its
financial advisor) that such Acquisition Proposal is reasonably capable of being
completed on the terms proposed and, after taking into account the strategic
benefits anticipated to be derived from the Merger and the prospects of Promus
and Doubletree as a combined company, would, if consummated, result in a
transaction more favorable to the stockholders of such party over the long term
than the transaction contemplated by the Merger Agreement (any such more
favorable Acquisition Proposal being referred to as a "Superior Proposal") and
the Board of Directors of such party determines in good faith after consultation
with outside legal counsel that such action is required for such Board of
Directors to comply with its fiduciary duties to stockholders under applicable
law and (2) prior to furnishing such non-public information to, or entering into
discussions or negotiations with, such person or entity, such Board of Directors
receives from such person or entity an executed confidentiality agreement with
terms no less favorable to such party than those contained in the
Confidentiality Agreements, each dated August 16, 1997 between Doubletree and
Promus; or (b) complying with Rule 14e-2 promulgated under the Exchange Act with
regard to an Acquisition Proposal. Each of Doubletree and Promus also agrees not
to release any third party from, or waive any provision of, any standstill
agreement to which it is a party or any confidentiality agreement between it and
another person who has made, or who may reasonably be considered likely to make,
an Acquisition Proposal, unless its Board of Directors determines in good faith
after consultation with outside legal counsel that such action is required for
such Board of Directors to comply with its fiduciary duties to stockholders
under applicable law.
 
    The Merger Agreement requires each of Doubletree and Promus to promptly
notify the other party (orally and in writing) upon receipt of any Acquisition
Proposal or request for non-public information or access to its properties,
books or records in connection with an Acquisition Proposal. The party providing
 
                                       62
<PAGE>
such notice also is required to indicate in reasonable detail the identity of
the offeror and the terms and conditions of such proposal, inquiry or contact,
and continue thereafter to keep the other party informed, on a current basis, of
the status of any such discussions or negotiations and the terms being discussed
or negotiated.
 
    STOCKHOLDERS' MEETINGS.  The Merger Agreement provides that each of
Doubletree and Promus will call a meeting of its respective stockholders to be
held as promptly as practicable for the purpose of voting upon the Merger
Agreement and the Merger. Subject to the discussion above under "--No
Solicitation," each of Doubletree and Promus agreed to recommend to its
stockholders adoption of the Merger Agreement and approval of such matters, to
coordinate and cooperate with respect to the timing of its stockholders' meeting
and to use its best efforts to hold such meeting on the same day as the other
party's stockholders' meeting and as soon as practicable after the date of the
Merger Agreement. Unless otherwise required to comply with the applicable
fiduciary duties of the respective directors of Doubletree and Promus, as
determined by such directors in good faith after consultation with outside legal
counsel, each party agreed to use all reasonable efforts to solicit from
stockholders of such party proxies in favor of such matters.
 
    POST-MERGER CORPORATE GOVERNANCE; EMPLOYMENT ARRANGEMENTS.  The Merger
Agreement provides that certain corporate governance matters relating to New
Promus will be as described above under "The Merger--Interests of Certain
Persons in the Merger--Board of Directors and Committees of New Promus" and "The
Combined Company--Directors and Executive Officers." The Merger Agreement also
provides that New Promus will enter into certain executive employment agreements
and have certain executive officers as described under "The Merger--Interests of
Certain Person in the Merger--Employment Agreements" and "The Combined
Company--Directors and Executive Officers."
 
    The Merger Agreement provides that New Promus will have an Executive
Committee which initially will be comprised of the following four members of the
Board of Directors of New Promus: Richard J. Ferris, Michael D. Rose, Raymond E.
Schultz and Peter V. Ueberroth. In addition, Richard M. Kelleher will be an
ex-officio member of the Executive Committee with the right to attend but not
vote at all meetings of the Executive Committee. The Executive Committee will
have responsibility for developing New Promus's long-term strategic plans,
making significant capital allocation decisions and such other duties and
responsibilities as specified by the Board of Directors of New Promus at or
after the Effective Time. The Executive Committee also will be required to
oversee the implementation of Promus's existing 100% guest satisfaction
guarantee program at all of New Promus's hotel properties (other than non-New
Promus brand hotels) following the Effective Time. Each member of the Executive
Committee that is not an employee of New Promus will be entitled to receive
$300,000 per year as compensation for serving on the Executive Committee. See
"The Combined Company--Directors and Executive Officers." It also is the
intention of Doubletree, Promus and New Promus that Mr. Dale Frey will be
designated as the initial Chairman of the Human Resources Committee of New
Promus immediately following the Effective Time.
 
    The Merger Agreement provides that each of Doubletree and Promus will cause
New Promus to incorporate the provisions described in the three preceding
paragraphs into the Bylaws of New Promus in effect at the Effective Time, which
provisions will thereafter be amended by the Board of Directors of New Promus
only with the approval of 75% of the members of the Board of Directors of New
Promus.
 
    STOCK PLANS.  At the Effective Time, each outstanding option to purchase
shares of Doubletree Common Stock (a "Doubletree Stock Option") and each
outstanding option to purchase shares of Promus Common Stock (a "Promus Stock
Option"), in each case whether vested or unvested, will be deemed to constitute
an option to acquire, on the same terms and conditions as were applicable under
such Doubletree Stock Option or Promus Stock Option, as the case may be, the
same number of shares of New Promus Common Stock as the holder of such
Doubletree Stock Option or Promus Stock Option, as the case may be, would have
been entitled to receive pursuant to the Merger had such holder exercised such
option in full immediately prior to the Effective Time. The exercise price per
share of each such option, as
 
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so converted, will be equal to (x) the aggregate exercise price for the shares
of Doubletree Common Stock or Promus Stock Option, as the case may be,
purchasable pursuant to such Doubletree Stock Option or Promus Stock Option, as
the case may be, immediately prior to the Effective Time divided by (y) the
number of whole shares of New Promus Common Stock deemed purchasable pursuant to
such Doubletree Stock Option or Promus Stock Option, as the case may be, as
determined above (rounded up to the nearest whole cent). As of the record date
for the Doubletree Special Meeting and the record date for the Promus Special
Meeting, respectively, options to acquire 3,253,300 and 2,468,316 shares of
Doubletree Common Stock and Promus Common Stock, respectively, were outstanding.
All outstanding Doubletree Stock Options and Promus Stock Options will become
exercisable in full upon the Closing, pursuant to the terms of such stock
options.
 
    Pursuant to the Merger Agreement, New Promus has agreed to reserve for
issuance a sufficient number of shares of New Promus Common Stock for delivery
upon exercise of the Doubletree Stock Options or the Promus Stock Options, as
the case may be, assumed as described above. As soon as practicable after the
Effective Time, New Promus will file a registration statement on Form S-8 with
respect to the shares of New Promus Common Stock subject to such options and
will use its best efforts to maintain the effectiveness of such registration
statement for so long as such options remain outstanding.
 
    DIRECTOR AND OFFICER INDEMNIFICATION.  The Merger Agreement provides that,
from and after the Effective Time, New Promus and/or the surviving corporations
in the Doubletree Merger and the Promus Merger will indemnify and hold harmless
each present and former director and officer of Promus against any costs or
expenses (including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities or amounts paid in settlement incurred in connection with any claim,
action, suit, proceeding or investigation arising out of or pertaining to any
matter existing or occurring at or prior to the Effective Time, whether asserted
or claimed prior to, or at or after the Effective Time, to the fullest extent
that Doubletree or Promus, as the case may be, would have been permitted under
Delaware law and its certificate of incorporation or bylaws in effect on the
date of the Merger Agreement to indemnify such person. New Promus and/or such
surviving corporations will also be obligated to advance expenses as incurred to
the fullest extent permitted under applicable law, provided the person to whom
expenses are advanced provides an undertaking to repay such advances if it is
ultimately determined that such person is not entitled to indemnification.
 
    For a period of six years after the Effective Time, New Promus will cause
the surviving corporations in the Doubletree Merger and the Promus Merger to
maintain (to the extent available in the market) in effect a directors' and
officers' liability insurance policy covering those persons who are covered as
of the date of the Merger Agreement by Doubletree's or Promus's directors' and
officers' liability insurance policy, with coverage in an amount and scope at
least as favorable as Doubletree's or Promus's existing coverage; provided that
in no event will New Promus or the surviving corporations in the Doubletree
Merger and the Promus Merger be required to expend in excess of 200% of the
annual premium paid by Doubletree or Promus for such coverage, and if the
premium would at any time exceed 200% of such amount, then New Promus or
surviving corporations in the Doubletree Merger and the Promus Merger will
maintain insurance policies which provide the maximum coverage available at an
annual premium equal to 200% of such amount.
 
    STOCKHOLDER RIGHTS PLANS.  Doubletree entered into a Rights Agreement dated
as of September 1, 1997 with Harris Trust Company of California (the "Doubletree
Rights Plan"). The Doubletree Rights Plan provides that the transactions
contemplated by the Merger Agreement and the Promus Stock Option Agreement and
the Stockholders Support Agreement are exempt from the provisions of the
Doubletree Rights Plan, and all rights issued pursuant to the Doubletree Rights
Plan will become non-exercisable at the Effective Time. Promus is a party to a
Rights Agreement dated June 30, 1995 with First Union National Bank (the "Promus
Rights Plan"). The provisions of the Promus Rights Plan will not be triggered by
the transactions contemplated by the Merger Agreement and the Doubletree Stock
Option Agreement,
 
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<PAGE>
and all rights issued pursuant to the Promus Rights Plan will become
non-exercisable at the Effective Time.
 
    The Merger Agreement also provides that Doubletree and Promus will cause New
Promus, prior to the Closing Date, to adopt a Stockholder Rights Plan that is
substantially similar to the Promus Rights Plan, with such modifications as are
acceptable to both Doubletree and Promus. See "Description of New Promus Capital
Stock--Preferred Share Purchase Rights."
 
    GEPT WARRANT; DOUBLETREE REGISTRATION RIGHTS AGREEMENT.  The Merger
Agreement provides that, at the Effective Time, New Promus will assume all
obligations under the GEPT Warrant, and the holder of the GEPT Warrant
thereafter will have the right to acquire, on the same pricing and payment terms
and conditions as are currently applicable under the GEPT Warrant the same
number of shares of New Promus Common Stock as the holder of the GEPT Warrant
would have been entitled to receive pursuant to the Doubletree Merger had such
holder exercised the GEPT Warrant in full immediately prior to the Effective
Time (rounded downward to the nearest whole number), at the price per share
(rounded downward to the nearest whole cent) equal to (x) the aggregate exercise
price for the shares of Doubletree Common Stock purchasable pursuant to the GEPT
Warrant immediately prior to the Effective Time divided by (y) the number of
full shares of New Promus Common Stock deemed purchasable pursuant to the GEPT
Warrant in accordance with the foregoing. Doubletree and Promus also have agreed
to cause New Promus, at the Effective Time, to enter into a Registration Rights
Agreement (the "New Promus Registration Rights Agreement") substantially similar
to the Incorporation and Registration Rights Agreement dated as of December 16,
1993, as amended on June 30, 1994, February 27, 1996 and November 8, 1996 by and
among Doubletree and certain stockholders of Doubletree (the "Doubletree
Registration Rights Agreement") pursuant to which New Promus will provide
registration rights to parties to the Doubletree Registration Rights Agreement
(other than Doubletree) with respect to all shares of New Promus Common Stock
issued in the Doubletree Merger on account of the shares of Doubletree Common
Stock covered by the Doubletree Registration Rights Agreement.
 
    EMPLOYEE BENEFITS; SEVERANCE.  The Merger Agreement provides that New Promus
will cause to continue to be maintained the existing Doubletree and Promus
annual bonus plans for management employees for the 1997 fiscal year and will
calculate the amounts payable to participants thereunder on a basis consistent
with the terms of each such plan and the past practice of Doubletree or Promus,
as applicable. For purposes of determining eligibility to participate, vesting,
entitlement to benefits and in all other respects where length of service is
relevant (except for pension benefit accruals) under any employee benefit plan
or arrangement covering employees of Doubletree and its subsidiaries and
employees of Promus and its subsidiaries following the Effective Time, New
Promus will cause such plans or arrangements to recognize service credit for
service with Doubletree or Promus (as applicable) and any of their respective
subsidiaries to the same extent such service was recognized under the applicable
employee benefit plans immediately prior to the Effective Time. In addition, the
Merger Agreement also requires New Promus to assume and honor in accordance with
their terms the severance agreements and severance pay policies described under
"The Merger--Interests of Certain Persons in the Merger--Severance Agreements."
Each of Promus and Doubletree may enter into retention and transition bonus
arrangements with its employees prior to the Effective Time, with the terms and
amounts of such payments to be determined jointly by the Chief Executive
Officers of Promus and Doubletree; provided, however, that in no event will the
aggregate of all such payments exceed approximately $2.5 million. Promus also
will use all reasonable efforts, including obtaining any necessary employee
consents, to prevent the automatic funding of any escrow, trust or similar
arrangement pursuant to any employment agreement, arrangement or benefit plan
that arises in connection with the execution of the Merger Agreement or the
consummation of any of the transactions contemplated thereby.
 
    NAME OF NEW PROMUS.  The Merger Agreement provides that, at the Effective
Time, New Promus will change its corporate name to "Promus Hotel Corporation."
 
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<PAGE>
    OTHER COVENANTS.  Pursuant to the Merger Agreement, each of Doubletree and
Promus has also agreed: (a) to confer with the other party on a regular basis
regarding ongoing operations and to give prompt notice to the other of, and use
all commercially reasonable efforts to come before the Closing Date, any event,
transaction or circumstance which causes or will cause any breach, of any
representation, warranty covenant or agreement; (b) to file this Joint Proxy
Statement/Prospectus and the Registration Statement, and obtain all necessary
state securities laws permits or approvals; (c) to give (and to cause their
respective subsidiaries to give) the other such party and its representatives
access to all its personnel, properties, books, contracts, commitments and
records, and to furnish related information reasonably requested by the other;
(d) to use its best efforts to take all appropriate action to consummate the
transactions contemplated by the Merger Agreement as promptly as practical,
obtain any consents, licenses, permits, waivers, approvals, authorizations or
orders from governmental entities or other third parties required in connection
with the transactions contemplated by the Merger Agreement, and make all
necessary filings and submissions with respect to the transactions contemplated
by the Merger Agreement under federal, state and foreign securities laws,
antitrust laws and other applicable laws; (e) to consult with the other party
before issuing, and use all reasonable efforts to agree upon, any press release
or other public statement concerning the transactions contemplated by the Merger
Agreement; (f) to not take any action, or knowingly fail to take any action,
that is reasonably likely to jeopardize the tax or accounting treatment of the
Merger; (g) to use all reasonable efforts to obtain and deliver to the other
party the Affiliate Agreements; (h) to use all reasonable efforts to cause the
New Promus Common Stock to be issued in the Merger to be approved for listing on
the NYSE, prior to the Effective Time; (i) to use all reasonable efforts to
obtain customary "comfort" letters of such party's independent public
accountants with respect to the Registration Statement; and (j) that Doubletree
and Promus will cooperate in the preparations and filing of all returns and
other documents regarding the Merger Agreement and will pay any real property
transfer or gains, sales, use, transfer, value added, stock transfer and stamp
taxes, any transfer, recording, registration and other fees or any similar taxes
which become payable in connection with the transactions contemplated by the
Merger Agreement, and that Doubletree will pay, and Promus will pay, on behalf
of the stockholders of Doubletree and Promus, respectively, any New York State
Real Estate Transfer Tax, New York City Real Property Transfer Tax, New York
State Stock Transfer Tax and any similar taxes imposed on the stockholders of
Doubletree and Promus, respectively, by any other state which become payable in
connection with the transactions contemplated by the Merger Agreement.
 
CONDITIONS TO OBLIGATIONS TO EFFECT THE MERGER
 
    The respective obligations of Doubletree and Promus to effect the Merger are
subject to the satisfaction (or waiver) of the following conditions: (a) the
Merger Agreement, the Doubletree Merger and the Promus Merger shall have been
approved in the manner required under the DGCL by the respective holders of the
issued and outstanding shares of capital stock of Doubletree and Promus; (b) the
waiting period applicable to the consummation of the Mergers under the HSR Act
shall have expired or been terminated; (c) all authorizations, consents, orders
or approvals of, or declarations or filings with, or expirations of waiting
periods imposed by, any Governmental Entity (as defined in the Merger Agreement)
the failure of which to file, obtain or occur is reasonably likely to have a
Material Adverse Effect on Doubletree or a Material Adverse Effect on Promus
shall have been filed, been obtained or occurred; (d) the Registration Statement
shall have become effective under the Securities Act and shall not be the
subject of any stop order or proceedings seeking a stop order; (e) no
Governmental Entity shall have enacted, issued, promulgated, enforced or entered
any order, executive order, stay, decree, judgment or injunction or statute,
rule, regulation which is in effect and which has the effect of making the
Merger illegal or otherwise prohibiting consummation of the Merger; (f)
Doubletree and Promus shall have received letters from KPMG Peat Marwick LLP and
Arthur Andersen LLP, respectively, addressed to Doubletree and Promus,
respectively, regarding their concurrence with the respective conclusions of
management of Doubletree and Promus, as to the appropriateness of the pooling of
interests accounting, under Accounting Principles Board Opinion No. 16, for the
transactions contemplated by the Merger
 
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<PAGE>
Agreement; (g) the shares of New Promus Common Stock to be issued in the Merger
and upon exercise of Doubletree Options, the GEPT Warrant and Promus Options
shall have been approved for listing on the NYSE, subject to official notice of
issuance; and (h) Doubletree and Promus shall have taken all actions necessary
so that (1) not later than the Effective Time, the Certificate of Incorporation
and Bylaws of New Promus shall have been as contemplated by the Merger
Agreement, (2) at the Effective Time, the composition of the Board of Directors
of New Promus and of each Committee of the Board of Directors of New Promus
shall be as described above under "Interests of Certain Persons in the
Merger--Board of Directors and Committees of New Promus," and (3) not later than
the Effective Time, New Promus shall have adopted the New Promus Rights Plan.
 
    The obligation of Doubletree to effect the Merger are subject to the
satisfaction (or waiver) of the following conditions: (a) the representations
and warranties of Promus set forth in the Merger Agreement shall be true and
correct as of the date of the Merger Agreement and (except to the extent such
representations speak as of an earlier date) as of the Closing Date as though
made on and as of the Closing Date, except for, (i) changes contemplated by the
Merger Agreement and (ii) inaccuracies which, individually or in the aggregate,
have not had and are not reasonably likely to have a Material Adverse Effect on
Promus or a material adverse effect upon the consummation of the transactions
contemplated hereby; and Doubletree shall have received a certificate signed on
behalf of Promus by the chief executive officer and the chief financial officer
of Promus to such effect (the "Doubletree Representation Bringdown Condition");
(b) Promus shall have performed in all material respects all obligations
required to be performed by it under the Merger Agreement at or prior to the
Closing Date, and Doubletree shall have received a certificate signed on behalf
of Promus by the chief executive officer and the chief financial officer of
Promus to such effect; (c) Doubletree shall have received the opinion of Dewey
Ballantine LLP, counsel to Doubletree, based upon reasonably requested
representation letters and dated the Closing Date, to the effect that the
Doubletree Merger will be treated as a reorganization described in Section
368(a) of the Code and/or, taken together with the Promus Merger, as a transfer
of property to New Promus by holders of Doubletree Common Stock described in
Section 351 of the Code; and (d) no event shall have occurred that has or would
result in the triggering of any right or entitlement of stockholders of Promus
under the Promus Rights Plan, or will occur as a result of the consummation of
the Merger.
 
    The obligation of Promus to effect the Merger are subject to the
satisfaction (or waiver) of the following conditions: (a) the representations
and warranties of Doubletree set forth in the Merger Agreement shall be true and
correct as of the date of the Merger Agreement and (except to the extent such
representations and warranties speak as of an earlier date) as of the Closing
Date as though made on and as of the Closing Date, except for (i) changes
contemplated by the Merger Agreement and (ii) inaccuracies which, individually
or in the aggregate, have not had and are not reasonably likely to have a
Material Adverse Effect on Doubletree, or a material adverse effect upon the
consummation of the transactions contemplated hereby; and Promus shall have
received a certificate signed on behalf of Doubletree by the chief executive
officer and the chief financial officer of Doubletree to such effect (the
"Promus Representation Bringdown Condition"); (b) Doubletree shall have
performed in all material respects all obligations required to be performed by
it under the Merger Agreement at or prior to the Closing Date; and Promus shall
have received a certificate signed on behalf of Doubletree by the chief
executive officer and the chief financial officer of Doubletree to such effect;
(c) Promus shall have received the opinion of Latham & Watkins, counsel to
Promus, based upon reasonably requested representation letters and dated the
Closing Date, to the effect that the Promus Merger will be treated as a
reorganization described in Section 368(a) of the Code and/or, taken together
with the Doubletree Merger, as a transfer of property to New Promus by holders
of Promus Common Stock described in Section 351 of the Code; and (d) no event
shall have occurred that has or would result in the triggering of any right or
entitlement of stockholders of Doubletree under the Doubletree Rights Plan, or
will occur as a result of the consummation of the Merger.
 
    A "Material Adverse Effect" means on the business, properties, financial
condition or results of operations of the referenced corporation and its
subsidiaries, taken as a whole.
 
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<PAGE>
TERMINATION; TERMINATION FEES AND EXPENSES
 
    The Merger Agreement may be terminated at any time prior to the Effective
Time, whether before or after approval of the matters presented in connection
with the Merger by the stockholders of Doubletree and Promus:
 
    (a) by mutual written consent of Doubletree and Promus; or
 
    (b) by either Doubletree or Promus if the Merger has not been consummated by
January 31, 1998 (provided that (i) either Doubletree or Promus may extend such
date to March 31, 1998 by providing written notice thereof to the other party on
or prior to January 31, 1998 (January 31, 1998, as it may be so extended, will
be referred to herein as the "Outside Date") and (ii) the right to terminate the
Merger Agreement under this clause (b) will not be available to any party whose
failure to fulfill any obligation under the Merger Agreement has been the cause
of or resulted in the failure of the Merger to occur on or before such date); or
 
    (c) by either Doubletree or Promus if a court of competent jurisdiction or
other Governmental Entity has issued a nonappealable final order, decree or
ruling or taken any other nonappealable final action, in each case having the
effect of permanently restraining, enjoining or otherwise prohibiting the
Merger; or
 
    (d) (i) by Doubletree or Promus, if, at the Promus Stockholders' Meeting
(including any adjournment or postponement), the requisite vote of the
stockholders of Promus in favor of the approval and adoption of the Merger
Agreement and the Promus Merger has not been obtained; or (ii) by Promus or
Doubletree if, at the Doubletree Stockholders' Meeting (including any
adjournment or postponement), the requisite vote of the stockholders of
Doubletree in favor of the approval and adoption of the Merger Agreement and the
Doubletree Merger has not been obtained; or
 
    (e) by Doubletree, if (i) the Board of Directors of Promus has withdrawn or
modified its recommendation of the Merger Agreement or the Promus Merger
(provided that Doubletree's right to terminate the Merger Agreement under such
clause (i) will not be available if at such time Promus would be entitled to
terminate the Merger Agreement by reason of a breach by Doubletree); (ii) after
the receipt by Promus of an Acquisition Proposal, Doubletree requests in writing
that the Board of Directors of Promus reconfirm its recommendation of the Merger
Agreement and the Promus Merger to the stockholders of Promus and the Board of
Directors of Promus fails to do so within 10 business days after its receipt of
Doubletree's request; (iii) the Board of Directors of Promus has recommended to
the stockholders of Promus an Alternative Transaction (as defined in the Merger
Agreement); (iv) a tender offer or exchange offer for 20% or more of the
outstanding shares of Promus Common Stock is commenced (other than by Doubletree
or an Affiliate of Doubletree) and the Board of Directors of Promus recommends
that the stockholders of Promus tender their shares in such tender or exchange
offer; or (v) for any reason Promus fails to call and hold the Promus Special
Meeting by the Outside Date (provided that Doubletree's right to terminate the
Merger Agreement under such clause (v) will not be available if at such time
Promus would be entitled to terminate the Merger Agreement by reason of a breach
by Doubletree); or
 
    (f) by Promus, if (i) the Board of Directors of Doubletree has withdrawn or
modified its recommendation of the Merger Agreement or the Doubletree Merger
(provided that Promus's right to terminate the Merger Agreement under such
clause (i) will not be available if at such time Doubletree would be entitled to
terminate the Merger Agreement by reason of a breach by Promus); (ii) after the
receipt by Doubletree of an Acquisition Proposal, Promus requests in writing
that the Board of Directors of Doubletree reconfirm its recommendation of the
Merger Agreement and the Doubletree Merger to the stockholders of Promus and the
Board of Directors of Doubletree fails to do so within 10 business days after
its receipt of Promus's request; (iii) the Board of Directors of Doubletree has
recommended to the stockholders of Doubletree an Alternative Transaction; (iv) a
tender offer or exchange offer for 20% or more of the outstanding shares of
Doubletree Common Stock is commenced (other than by Promus or an Affiliate of
 
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<PAGE>
Promus) and the Board of Directors of Doubletree recommends that the
stockholders of Doubletree tender their shares in such tender or exchange offer;
or (v) for any reason Doubletree fails to call and hold the Doubletree Special
Meeting by the Outside Date (provided that Promus's right to terminate the
Merger Agreement under such clause (v) will not be available if at such time
Doubletree would be entitled to terminate the Merger Agreement by reason of a
breach of Promus); or
 
    (g) by Doubletree or Promus, prior to the approval of the Merger Agreement
by the stockholders of such party, if, as a result of a Superior Proposal
received by such party from a third party, the Board of Directors of such party
determines in good faith after consultation with outside legal counsel that
accepting such Superior Proposal is required for such Board of Directors to
comply with its fiduciary duties to stockholders under applicable law; provided,
however, that no such termination will be effective under the circumstances
described in this clause (g) under circumstances in which a termination fee is
payable by the terminating party as described below, unless concurrently with
such termination, such termination fee is paid in full by the terminating party
as described below; or
 
    (h) by Doubletree or Promus, if (A) there has been a breach of any
representation, warranty, covenant or agreement on the part of the other party
set forth in the Merger Agreement, which breach (i) will cause the Promus
Representation Bringdown Condition (in the case of termination by Doubletree) or
the Doubletree Representation Bringdown Condition (in the case of termination by
Promus) not to be satisfied, and (ii) has not been cured within 20 business days
following receipt by the breaching party of written notice of such breach from
the other party; or (B) any event has occurred which makes it impossible for the
conditions described above under "--Conditions to Obligations to Effect the
Merger" (other than the conditions regarding stockholder approval of the Merger,
the absence of injunctions by Government Entities and the triggering of the
Doubletree Rights Plan of the Promus Rights Plan) to be satisfied, provided that
any termination pursuant to this clause (B) will not be effective until 20
business days after notice thereof is delivered by the party seeking to
terminate to the other party, and will be automatically rescinded if (1) such
condition is solely for the benefit of the party receiving such notice and (2)
such party, prior to such 20th business day, irrevocably waives satisfaction of
such condition based on such event.
 
    In the event of any termination of the Merger Agreement by either Doubletree
or Promus as provided above, the Merger Agreement will become void and there
will be no liability or obligation (with limited exceptions) on the part of
Doubletree, Promus, New Promus or their respective officers, directors,
stockholders or affiliates, except as provided below with respect to termination
fees and except that such termination will not limit liability for a willful
breach of the Merger Agreement; provided that, the indemnification provisions
described above under "--Indemnification of Doubletree and Promus Directors and
Officers" and the termination fee provisions described below will remain in full
force and effect and survive any termination of the Merger Agreement.
 
    Except as set forth below, whether or not the Merger is consummated, all
fees, costs and expenses incurred in connection with the Merger Agreement and
the transactions contemplated thereby will be paid by the party incurring such
expenses.
 
    Doubletree will pay Promus a termination fee of $45 million (the "Doubletree
Termination Fee") upon the earliest to occur of the following events: (i) the
termination of the Merger Agreement by either Promus or Doubletree under the
circumstances described in paragraph (d) above, if a proposal for an Alternative
Transaction involving Doubletree has been publicly announced prior to the
Doubletree Special Meeting and either a definitive agreement for an Alternative
Transaction is entered into, or an Alternative Transaction is consummated,
within eighteen months of such termination; (ii) the termination of the Merger
Agreement by Promus under the circumstances described in paragraph (f) above; or
(iii) the termination of the Merger Agreement by Doubletree under the
circumstances described in paragraph (g) above. Doubletree's payment of such
termination fee will be the sole and exclusive remedy of Promus against
Doubletree and any of its subsidiaries and their respective directors, officers,
employees, agents,
 
                                       69
<PAGE>
advisors or other representatives with respect to the occurrences giving rise to
such payment; provided that this limitation will not apply in the event of a
willful breach of the Merger Agreement by Doubletree. Notwithstanding the
foregoing, the amount of the Doubletree Termination Fee will be reduced to the
extent that the Doubletree Total Profit (as defined below under "Other
Agreements--Doubletree Stock Option Agreement") exceeds $65 million.
 
    Promus will pay Doubletree a termination fee of $45 million (the "Promus
Termination Fee") upon the earliest to occur of the following events: (i) the
termination of the Merger Agreement by either Doubletree or under the
circumstances described in paragraph (d) above, if a proposal for an Alternative
Transaction involving Promus has been publicly announced prior to the Promus
Special Meeting and either an Alternative Transaction is entered into, or an
Alternative Transaction is consummated, within eighteen months of such
termination; (ii) the termination of the Merger Agreement by Doubletree under
the circumstances described in paragraph (e) above; or (iii) the termination of
the Merger Agreement by Promus under the circumstances described in paragraph
(g) above. Promus's payment of such termination fee will be the sole and
exclusive remedy of Doubletree against Promus and any of its subsidiaries and
their respective directors, officers, employees, agents, advisors or other
representatives with respect to the occurrences giving rise to such payment;
provided that this limitation will not apply in the event of a willful breach of
the Merger Agreement by Promus. Notwithstanding the foregoing, the amount of the
Promus Termination Fee will be reduced to the extent that the Promus Total
Profit (as defined below under "Other Agreements--Promus Stock Option
Agreement") exceeds $65 million.
 
    If applicable, the fees payable as described above will be paid concurrently
with the first to occur of the relevant termination events.
 
AMENDMENT AND WAIVER
 
    The Merger Agreement provides that it may be amended by the parties thereto,
by action taken or authorized by their respective Boards of Directors, at any
time before or after approval of the matters presented in connection with the
Merger by the stockholders of Doubletree or Promus, but, after any such
approval, no amendment shall be made which by law requires further approval by
such stockholders without such further approval. The Merger Agreement may not be
amended except by an instrument in writing signed on behalf of each of the
parties hereto; provided, however, that the Merger Agreement may be amended in
writing without obtaining the signatures of Doubletree, Promus or New Promus
solely for the purpose of adding Doubletree Sub and Merger Sub as parties to the
Merger Agreement. At any time prior to the Effective Time, the parties to the
Merger Agreement, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties
thereto, (ii) waive any inaccuracies in the representations and warranties
contained herein or in any document delivered pursuant thereto and (iii) waive
compliance with any of the agreements or conditions contained therein. Any
agreement on the part of a party to the Merger Agreement to any such extension
or waiver shall be valid only if set forth in a written instrument signed on
behalf of such party.
 
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<PAGE>
                                OTHER AGREEMENTS
 
    THE FOLLOWING IS A SUMMARY OF THE MATERIAL TERMS OF THE DOUBLETREE STOCK
OPTION AGREEMENT, THE PROMUS STOCK OPTION AGREEMENT AND THE STOCKHOLDER SUPPORT
AGREEMENT, COPIES OF WHICH AGREEMENTS ARE FILED AS EXHIBITS TO DOUBLETREE'S
CURRENT REPORT ON FORM 8-K, DATED SEPTEMBER 5, 1997, AS AMENDED, AND PROMUS'S
CURRENT REPORT ON FORM 8-K, DATED SEPTEMBER 5, 1997, AND ARE HEREBY INCORPORATED
HEREIN BY REFERENCE. SUCH SUMMARIES ARE QUALIFIED IN THEIR ENTIRETY BY REFERENCE
TO THE STOCK OPTION AGREEMENTS AND THE STOCKHOLDER SUPPORT AGREEMENT.
 
DOUBLETREE STOCK OPTION AGREEMENT
 
    Pursuant to the Doubletree Stock Option Agreement, Doubletree has the right
(the "Doubletree Option"), under the circumstances described below, to acquire
up to 9,929,485 shares of authorized but unissued Promus Common Stock (the
"Doubletree Option Shares") (or approximately 19.9% of the outstanding shares of
Promus Common Stock as of August 29, 1997 prior to giving effect to the exercise
of such option), including the associated rights under the Promus Rights Plan,
at a per share cash purchase price of $38.8125 (the "Doubletree Option Price").
The Doubletree Stock Option Agreement could have the effect of making an
acquisition of Promus by a third party more costly because of the need to
acquire in any such transaction the Doubletree Option Shares issued under the
Doubletree Stock Option Agreement, and could also jeopardize the ability of a
third party to acquire Promus in a transaction accounted for as a pooling of
interests.
 
    The Doubletree Option may be exercised by Doubletree, in whole or in part,
at any time or from time to time after the occurrence of an event which would
entitle Doubletree, upon termination of the Merger Agreement, to payment of the
Doubletree Termination Fee (as described above in "The Merger
Agreement--Termination; Termination Fees and Expenses"); provided that the
Doubletree Option may not be exercised if Doubletree is in material breach of
any of its material representations, warranties, covenants or agreements
contained in the Doubletree Stock Option Agreement or in the Merger Agreement.
Doubletree may exercise the Doubletree Option by either (a) paying the
Doubletree Option Price in cash and receiving the Doubletree Option Shares or
(b) electing, in lieu of the payment of the Doubletree Option Price and the
receipt of the Doubletree Option Shares, to receive a cash payment (the "Cash
Exercise Payment") from Promus in the amount of the excess of (i) the higher of
the price paid for the Promus Common Stock in an Alternative Transaction or the
then current market price of the Promus Common Stock over (ii) the Doubletree
Option Price.
 
    In the event that Doubletree exercises the Doubletree Option in whole or in
part and a change in control event (as defined in the Doubletree Stock Option
Agreement) with respect to Promus has not occurred prior to the first
anniversary of the termination of the Merger Agreement, Promus will have the
right, during the 30-day period beginning on such anniversary, to purchase all
(but not less than all) of the Doubletree Option Shares at a purchase price
equal to the greater of (i) the Doubletree Option Price or (ii) the average of
the closing sales prices for shares of Promus Common Stock on the 20 trading
days ending five days prior to the date Promus gives notice of its intention to
exercise such repurchase right.
 
    The Doubletree Stock Option Agreement further provides that if Doubletree
desires to sell any of the Doubletree Option Shares within three years after the
purchase of such shares and such sale requires the registration of such shares
under the Securities Act, Promus will be required to prepare and file (subject
to certain limitations) a registration statement under the Securities Act for
the purpose of permitting such sale of shares by Doubletree. Promus will not be
required to have declared effective more than two such registration statements.
 
    Notwithstanding any other provisions of the Doubletree Stock Option
Agreement, in no event will the Doubletree Total Profit (as defined below)
exceed $65 million. "Doubletree Total Profit" means the aggregate amount (before
taxes) of (i) the Doubletree Termination Fee received by Doubletree, (ii) the
amount received by Doubletree for the repurchase of the Doubletree Option Shares
by Promus pursuant
 
                                       71
<PAGE>
to the second preceding paragraph, less the purchase price paid by Doubletree
for such shares, and (iii) the amount received by Doubletree in the sale of
Doubletree Option Shares, less the purchase price paid by Doubletree for such
shares.
 
    The Doubletree Option will terminate upon the earlier of (i) the Effective
Time, (ii) the date on which Doubletree realizes a Doubletree Total Profit of
$65 million, (iii) the date on which the Merger Agreement is terminated,
provided that the Doubletree Option is not exercisable at such time and does not
become exercisable simultaneous with such termination, and (iv) 90 days after
the date the Doubletree Option becomes exercisable, provided that if the
Doubletree Option cannot be exercised, or the Doubletree Option Shares cannot be
delivered to Promus upon such exercise, because of a preliminary or permanent
injunction or other court order or because the applicable waiting period under
the HSR Act has not expired or been terminated, the date referred to in clause
(iv) above will be extended until 30 days after such impediment to exercise has
been removed.
 
PROMUS STOCK OPTION AGREEMENT
 
    Pursuant to the Promus Stock Option Agreement, Promus has the right (the
"Promus Option"), under the circumstances described below, to acquire up to
7,898,003 shares of authorized but unissued Doubletree Common Stock (the "Promus
Option Shares") (or approximately 19.9% of the outstanding Doubletree Common
Stock as of August 29, 1997 prior to giving effect to the exercise of such
option), including the associated rights under the Doubletree Rights Plan, at a
per share cash purchase price of $47.825 (the "Promus Option Price"). The Promus
Stock Option Agreement could have the effect of making an acquisition of
Doubletree by a third party more costly because of the need to acquire in any
such transaction the Promus Option Shares issued under the Promus Stock Option
Agreement, and could also jeopardize the ability of a third party to acquire
Doubletree in a transaction accounted for as a pooling of interests.
 
    The Promus Option may be exercised by Promus, in whole or in part, at any
time or from time to time after the occurrence of an event which would entitle
Promus, upon termination of the Merger Agreement, to payment of the Promus
Termination Fee (as described above in "The Merger Agreement--Termination;
Termination Fees and Expenses"); provided that the Promus Option may not be
exercised if Promus is in material breach of any of its material
representations, warranties, covenants or agreements contained in the Promus
Stock Option Agreement or the Merger Agreement. Promus may exercise the Promus
Option by either (a) paying the Promus Option Price in cash and receiving the
Promus Option Shares or (b) electing, in lieu of the payment of the Promus
Option Price and the receipt of the Promus Option Shares, to receive a Cash
Exercise Payment from Doubletree in the amount of the excess of (i) the higher
of the price paid for the Doubletree Common Stock in an Alternative Transaction
or the then current market price of the Doubletree Common Stock over (ii) the
Promus Option Price.
 
    In the event Promus exercises the Promus Option in whole or in part and a
change in control event (as defined in the Promus Stock Option Agreement) with
respect to Doubletree has not occurred prior to the first anniversary of the
termination of the Merger Agreement, Doubletree will have the right, during the
30-day period beginning on such anniversary, to purchase all (but not less than
all) of the Promus Option Shares at a purchase price equal to the greater of (i)
the Promus Option Price or (ii) the average of the closing sales prices for
shares of Doubletree Common Stock on the 20 trading days ending five days prior
to the date Doubletree gives notice of its intention to exercise such repurchase
right.
 
    The Promus Stock Option Agreement further provides that if Promus desires to
sell any of the Promus Option Shares within three years after the purchase of
such shares and such sale requires the registration of such shares under the
Securities Act, Doubletree will be required to prepare and file (subject to
certain limitations) a registration statement under the Securities Act for the
purpose of permitting such sale of shares by Promus. Doubletree will not be
required to have declared effective more than two such registration statements.
 
                                       72
<PAGE>
    Notwithstanding any other provisions of the Promus Stock Option Agreement,
in no event will the Promus Total Profit (as defined below) exceed $65 million.
"Promus Total Profit" means the aggregate amount (before taxes) of (i) the
Promus Termination Fee received by Promus, (ii) the amount received by Promus
for the repurchase of the Promus Option Shares by Doubletree pursuant to the
second preceding paragraph, less the purchase price paid by Promus for such
shares, and (iii) the amount received by Promus in the sale of Promus Option
Shares, less the purchase price paid by Promus for such shares.
 
    The Promus Option will terminate upon the earlier of (i) the Effective Time,
(ii) the date on which Promus realizes a Promus Total Profit of $65 million,
(iii) the date on which the Merger Agreement is terminated, provided that the
Promus Option is not exercisable at such time and does not become exercisable
simultaneous with such termination, and (iv) 90 days after the date the Promus
Option becomes exercisable, provided that if the Promus Option cannot be
exercised, or the Doubletree Option Shares cannot be delivered to Doubletree
upon such exercise, because of a preliminary or permanent injunction or other
court order or because the applicable waiting period under the HSR Act has not
expired or been terminated, the date referred to in clause (iv) above will be
extended until 30 days after such impediment to exercise has been removed.
 
STOCKHOLDER SUPPORT AGREEMENT
 
    As an inducement and condition to the willingness of Promus and Doubletree
to enter into the Merger Agreement and the Stock Option Agreements, the Key
Stockholders entered into the Stockholder Support Agreement. The Key
Stockholders are GE Investment Management Incorporated, GEHOP, the Trustees of
General Electric Pension Trust, Red Lion, a California limited partnership,
Richard J. Ferris, Ridge Partners, L.P., Kelrick, Inc., Peter V. Ueberroth, The
Ueberroth Family Trust and The Ueberroth Investment Trust. Collectively, the Key
Stockholders held, at the record date for the Doubletree Special Meeting and the
record date for the Promus Special Meeting, respectively, over 39% of the
combined voting power of the outstanding capital stock of Doubletree, and
therefore, together, are able to significantly influence the vote on the
approval and adoption of the Merger Agreement and the transactions contemplated
thereby by the Doubletree stockholders.
 
    In the Stockholder Support Agreement, each Key Stockholder has agreed, at
the Doubletree Special Meeting or at any other meeting of the stockholders of
Doubletree, however called, and in any action by written consent of the
stockholders of Doubletree, to vote all of such Key Stockholder's shares of
Doubletree Common Stock (a) in favor of the adoption of the Merger Agreement and
the approval of the Doubletree Merger, and the other transactions contemplated
by the Merger Agreement, and (b) in favor of any other matter necessary to the
consummation of the transactions contemplated by the Merger Agreement and
considered and voted upon by the stockholders of Doubletree (or any class
thereof). In addition, each Key Stockholder has agreed that it will, upon
request by Promus, furnish written confirmation, in form and substance
reasonably satisfactory to Promus, of such Key Stockholders' support for the
Merger Agreement and the Doubletree Merger.
 
    Pursuant to the terms of the Stockholder Support Agreement, each Key
Stockholder has agreed (a) that it will not, nor will it authorize or permit any
of its officers, directors, employees, agents and representatives to, directly
or indirectly, initiate or solicit any inquiries or the making of any
Acquisition Proposal and (b) that it will notify Promus as soon as possible (and
in any event within 48 hours) if any such inquiries or proposals are received
by, any information or documents is requested from, or any negotiations or
discussions are sought to be initiated or continued with, it or any of its
affiliates.
 
    The Stockholder Support Agreement will terminate upon the earliest to occur
of the Effective Time or any termination of the Merger Agreement in accordance
with the terms thereof.
 
                                       73
<PAGE>
                            REFINANCING ARRANGEMENTS
 
    In connection with the Merger, New Promus intends to refinance and
consolidate the existing credit facilities of Doubletree and Promus with the
proceeds of a new credit facility that is expected to be obtained prior to or
concurrently with the closing of the Merger (the "New Credit Facility").
Doubletree and Promus have obtained a commitment letter from NationsBank, N.A.
("NationsBank") to act as the agent for up to $1.0 billion in senior credit
facilities to be provided by NationsBank and a syndicate of other lenders.
Borrowings under the New Credit Facility will be used by New Promus for
refinancing borrowings under existing credit facilities, working capital and
capital expenditures. The closing of the Merger is not conditioned on the
closing of the New Credit Facility and, if New Promus is unable to close the New
Credit Facility on or before the Effective Time, Doubletree and Promus will
continue to borrow funds under their existing credit facilities until
refinancing is obtained. Such continued borrowing would require Doubletree and
Promus to obtain the consent of the lenders under such facilities.
 
    As presently contemplated, the New Credit Facility will consist of two
revolving credit facilities in the amounts of $750 million ("Tranche A") and
$250 million ("Tranche B") against which Doubletree and Promus Hotels, Inc., a
wholly-owned subsidiary of Promus ("PHI"), will be able to borrow on a joint and
several basis. Amounts borrowed under the New Credit Facility will bear interest
at a rate equal to the London Interbank Offered Rate plus a margin determined
periodically with reference to New Promus's leverage and credit rating or an
alternative base rate (defined as the higher of (i) NationBank's prime rate and
(ii) the federal funds rate plus .50%). All borrowings under the New Credit
Facility will be guaranteed by New Promus and Promus. New Promus will have the
option in the future, subject to certain conditions, of increasing the aggregate
amount available to be borrowed under the New Credit Facility to $1.25 billion.
Borrowings under the New Credit Facility will be unsecured and, subject to
certain exceptions, will mature in five years (in the case of Tranche A) and 364
days (in the case of Tranche B) from the Effective Time. The New Credit Facility
will include covenants that prohibit or limit, among other things, the sale of
assets, the making of investments, the incurrence of liens and transactions with
affiliates. The New Credit Facility also will include covenants that prohibit
each of Doubletree and PHI from exceeding a maximum ratio of consolidated funded
debt (defined to include, without limitation, balance sheet debt and guaranteed
debt) to consolidated earnings before interest, taxes, depreciation and
amortization and require each of Doubletree and PHI to maintain a minimum
consolidated net worth.
 
                                       74
<PAGE>
                    COMPARATIVE MARKET PRICES AND DIVIDENDS
 
    The following table sets forth, for the fiscal quarters indicated, the range
of high and low sale prices of Promus Common Stock on the NYSE and Doubletree
Common Stock on Nasdaq.
 
<TABLE>
<CAPTION>
                                                                                    DOUBLETREE      PROMUS COMMON
                                                                                   COMMON STOCK         STOCK
                                                                                  --------------   ----------------
                                                                                   HIGH    LOW      HIGH      LOW
                                                                                  ------  ------   ------    ------
<S>                                                                               <C>     <C>      <C>       <C>
YEAR ENDING DECEMBER 31, 1997
    4rd Quarter (through November 13, 1997).....................................  $49.38  $38.50   $45.38    $37.00
    3rd Quarter.................................................................   50.75   41.38    46.88     38.00
    2nd Quarter.................................................................   49.00   30.25    39.25     30.50
    1st Quarter.................................................................   45.25   35.00    36.38     28.25
YEAR ENDED DECEMBER 31, 1996
    4th Quarter.................................................................  $47.50  $39.25   $34.00    $28.25
    3rd Quarter.................................................................   40.38   30.75    32.25     24.75
    2nd Quarter.................................................................   35.75   26.50    29.63     25.25
    1st Quarter.................................................................   28.50   22.75    28.00     20.88
YEAR ENDED DECEMBER 31, 1995
    4th Quarter.................................................................  $26.38  $20.50   $24.13    $20.75
    3rd Quarter.................................................................   24.75   18.94    25.00     20.38
    2nd Quarter.................................................................   22.00   18.75    26.38(1)  21.00(1)
    1st Quarter.................................................................   20.25   16.25     --  (2)   --  (2)
</TABLE>
 
- ------------------------
 
(1) Trading on a "when-issued" basis.
 
(2) Promus was incorporated on March 2, 1995 and its Common Stock was not traded
    in the first quarter of 1995.
 
    On August 29, 1997, the last trading date prior to the date on which
Doubletree and Promus publicly announced the signing of the Merger Agreement,
the high and low sales prices on Nasdaq were $50.50 and $45.81 per share,
respectively, for Doubletree Common Stock, and on the NYSE were $39.13 and
$38.75 per share, respectively, for Promus Common Stock. The average closing
price of Doubletree Common Stock and Promus Common Stock for the 30 consecutive
trading days ending August 29, 1997 were $45.41 and $39.43 per share,
respectively. On November 13, 1997, the high and low sales prices and last
reported sales price on Nasdaq were $40.00, $38.88 and $39.25 per share for
Doubletree Common Stock, and on the NYSE were $37.75, $37.25 and $37.44 per
share, respectively, for Promus Common Stock. STOCKHOLDERS OF BOTH DOUBLETREE
AND PROMUS ARE URGED TO OBTAIN CURRENT MARKET QUOTATIONS FOR DOUBLETREE COMMON
STOCK AND PROMUS COMMON STOCK.
 
    Doubletree and Promus have not declared or paid any dividends with respect
to Doubletree Common Stock or Promus Common Stock, respectively. New Promus does
not currently intend to declare or pay any cash dividends on its Common Stock.
Any determination to pay dividends in the future will be at the discretion of
New Promus's Board of Directors and will be dependent upon New Promus's results
of operations, financial conditions, capital expenditures, working capital
requirements, any contractual restrictions and other factors deemed relevant by
the New Promus's Board of Directors.
 
                                       75
<PAGE>
                   UNAUDITED PRO FORMA FINANCIAL INFORMATION
 
    The following tables set forth the Unaudited Pro Forma Consolidated Results
of Operations for the years ended December 31, 1994, 1995 and 1996 and the nine
months ended September 30, 1996 and 1997 and unaudited pro forma Consolidated
Balance Sheets as of June 30, 1997 as if the merger of Doubletree Corporation
and Promus Hotel Corporation had been consummated as of January 1, 1994. The pro
forma results give effect to accounting for the merger as a "pooling of
interests" and accordingly, previously issued financial statements will be
restated in the future to combine the financial information of the previously
separate companies. The weighted average common and common equivalent shares
outstanding reflects the issuance of the shares of New Promus as if they had
been issued as of January 1, 1994. The pro forma information for the years ended
December 31, 1994, 1995 and 1996 presented below has been derived from the
audited financial statements of Promus and Doubletree. The unaudited pro forma
results of operations are not necessarily indicative of the results of
operations as they may be in the future or as they might have been had the
companies been combined as of January 1, 1994.
 
           UNAUDITED PRO FORMA CONSOLIDATED RESULTS OF OPERATIONS (4)
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                                                  NINE MONTHS ENDED
                                                                   YEARS ENDED DECEMBER 31,         SEPTEMBER 30,
                                                                -------------------------------  --------------------
                                                                  1994       1995      1996(3)    1996(3)    1997(1)
                                                                ---------  ---------  ---------  ---------  ---------
<S>                                                             <C>        <C>        <C>        <C>        <C>
Revenues:
  Franchise and management fees...............................  $ 104,040  $ 110,350  $ 140,768  $ 105,607  $ 140,695
  Owned hotel revenues........................................    125,177    137,160    172,893    109,494    281,842
  Leased hotel revenues.......................................     73,769    141,942    205,163    137,701    314,945
  Purchasing and service fees.................................      3,624      6,112      9,867      6,486     12,622
  Other fees and income.......................................     20,045     26,265     31,522     23,414     44,162
                                                                ---------  ---------  ---------  ---------  ---------
      Total revenues..........................................    326,655    421,829    560,213    382,702    794,266
                                                                ---------  ---------  ---------  ---------  ---------
Operating costs and expenses:
  General and administrative expenses.........................     46,013     52,952     62,638     44,886     61,283
  Owned hotel expenses........................................     77,360     82,055    105,146     63,587    168,386
  Leased hotel expenses.......................................     68,981    132,644    190,797    127,153    276,203
  Depreciation and amortization...............................     24,603     27,759     36,276     22,719     54,094
  Business combination expenses...............................         --      2,565         --         --         --
                                                                ---------  ---------  ---------  ---------  ---------
      Total operating costs and expenses......................    216,957    297,975    394,857    258,345    559,966
                                                                ---------  ---------  ---------  ---------  ---------
      Operating income........................................    109,698    123,854    165,356    124,357    234,300
                                                                ---------  ---------  ---------  ---------  ---------
  Interest and dividend income................................      3,210      7,551     17,175     11,618     17,776
  Interest expense............................................    (32,011)   (31,818)   (36,647)   (22,883)   (54,326)
  Gain on sale of real estate and securities..................      1,882      2,334      4,439      4,387     38,482
                                                                ---------  ---------  ---------  ---------  ---------
      Income before income taxes, minority
        interest and extraordinary items......................     82,779    101,921    150,323    117,479    236,232
Minority interest share of net income.........................        (92)       (83)      (539)      (152)    (2,666)
                                                                ---------  ---------  ---------  ---------  ---------
Income before income taxes and extraordinary
  item........................................................     82,687    101,838    149,784    117,327    233,566
      Income tax expense......................................    (33,133)   (40,287)   (59,126)   (46,303)   (91,031)
                                                                ---------  ---------  ---------  ---------  ---------
Income before extraordinary item..............................     49,554     61,551     90,658  $  71,024  $ 142,535
                                                                ---------  ---------  ---------  ---------  ---------
                                                                ---------  ---------  ---------  ---------  ---------
Earnings per share before extraordinary item..................  $    0.73  $    0.88  $    1.23  $    1.00  $    1.62
                                                                ---------  ---------  ---------  ---------  ---------
                                                                ---------  ---------  ---------  ---------  ---------
Weighted average shares outstanding(2)........................     67,776     69,920     73,579     70,968     88,107
                                                                ---------  ---------  ---------  ---------  ---------
                                                                ---------  ---------  ---------  ---------  ---------
</TABLE>
 
- ------------------------------
 
                                       76
<PAGE>
           UNAUDITED PRO FORMA CONSOLIDATED RESULTS OF OPERATIONS (4)
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
(1) During the nine months ended September 30, 1997, Doubletree and Promus each
    experienced certain unusual items. Doubletree realized a $10.9 million
    breakup fee, net of expenses, from the terminated Renaissance Hotel Group
    transaction, $3.0 million from the sale of its management rights for a hotel
    under development in Atlantic City and $5.5 million of expenses for the
    establishment of long-term compensation plans for senior management. Promus
    recognized a gain on the sale of real estate and a common stock investment
    of $38.5 million and a gain of $3.2 million on the disposition of certain
    joint venture investments. The effect of these transactions, net of taxes,
    was to increase pro forma net income by approximately $30.5 million and to
    increase pro forma earnings per share by approximately $0.35.
 
(2) Combined weighted average shares outstanding have been derived from each
    company's historical weighted average outstanding shares adjusted for the
    exchange ratio. Promus's weighted average shares for periods prior to the
    spin-off are assumed to be equal to the actual common and common equivalent
    shares outstanding on June 30, 1995.
 
(3) Doubletree acquired Red Lion Hotels, Inc. on November 8, 1996 in a
    transaction accounted for as a purchase. The following pro forma summary
    presents the combined results of Doubletree and Promus as if the Red Lion
    acquisition had occurred on January 1, 1996. The weighted average shares
    outstanding assumes that the 16.4 million shares issued in connection with
    the Red Lion acquisition were issued on January 1, 1996.
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED      NINE MONTHS ENDED
                                                             DECEMBER 31, 1996  SEPTEMBER 30, 1996
                                                             -----------------  ------------------
<S>                                                          <C>                <C>
Total revenues.............................................      $ 890,552          $  668,937
Operating income...........................................        230,445             178,813
Income before income taxes.................................        180,541             141,493
Net income.................................................        105,984              83,061
Earnings per share.........................................           1.21                0.95
Weighted Average Shares Outstanding........................         87,647              87,447
</TABLE>
 
(4) Doubletree and Promus expect to incur expenses in the fourth quarter of 1997
    related to the Merger of approximately $105.0 million. These costs will
    include approximately $25.5 million of legal, professional and accounting
    fees and due diligence costs, approximately $48.2 million of severance,
    relocation and certain other costs necessary to complete the Merger and the
    write-off of approximately $26.2 million of deferred financing costs and
    other assets whose benefit will not be realized after the Merger. Payments
    for these costs are expected to commence during the fourth quarter of 1997
    and are expected to continue during the first nine months of 1998. No such
    costs are reflected in the pro forma Consolidated Statement of Operating
    Data presented above.
 
                                       77
<PAGE>
                 UNAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET
 
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                             SEPTEMBER 30,
                                                                                 1997
                                                                             -------------
<S>                                                                          <C>
                                  ASSETS
 
Cash and cash equivalents..................................................   $    20,058
Accounts receivable, net...................................................        88,730
Other......................................................................        20,758
                                                                             -------------
  Total current assets.....................................................       129,546
                                                                             -------------
Property and equipment, net................................................       937,332
Investments................................................................       248,574
Management contracts, net..................................................       455,516
Goodwill, net..............................................................       371,190
Notes receivable...........................................................        92,546
Investment in franchise system.............................................        49,501
Deferred costs and other assets............................................       112,655
                                                                             -------------
                                                                              $ 2,396,860
                                                                             -------------
                                                                             -------------
 
                   LIABILITIES AND STOCKHOLDERS' EQUITY
 
Account payable and accrued expenses.......................................   $   167,936
Current portion of notes payable...........................................        75,591
                                                                             -------------
  Total current liabilities................................................       243,527
                                                                             -------------
Deferred income taxes......................................................       306,382
Notes payable..............................................................       651,054
Other long-term obligations................................................        58,356
                                                                             -------------
                                                                                1,259,319
                                                                             -------------
 
Commitments and contingencies
 
Stockholders' equity:
  Common stock, $.01 par value. Authorized 500,000,000 shares; 87,387,651
    issued and outstanding.................................................           873
  Additional paid-in capital...............................................       909,476
  Unrealized gain on marketable equity securities..........................        15,361
  Unearned employee compensation...........................................          (460)
  Retained earnings........................................................       272,434
  Treasury stock, 1,461,903 shares in treasury.............................       (60,143)
                                                                             -------------
                                                                                1,137,541
                                                                             -------------
                                                                              $ 2,396,860
                                                                             -------------
                                                                             -------------
</TABLE>
 
                                       78
<PAGE>
                    PRO FORMA SECURITY OWNERSHIP OF CERTAIN
                 BENEFICIAL OWNERS AND MANAGEMENT OF NEW PROMUS
 
    The following table sets forth certain pro forma information as to the
number of shares of New Promus Common Stock that will be beneficially owned by
(i) each person known by New Promus to be the beneficial owner of more than 5%
of any of New Promus's voting securities, (ii) each director of New Promus,
(iii) the Chief Executive Officer and the other highly compensated executive
officers of New Promus and (iv) New Promus's executive officers and directors as
a group assuming the Merger had been consummated on October 31, 1997. Except as
indicated by the notes to the following table (a) the holders listed below will
have sole voting power and investment power over the shares beneficially held by
them and (b) the beneficial ownership is direct.
 
<TABLE>
<CAPTION>
                                                                                          PRO FORMA BENEFICIAL
                                                                                              OWNERSHIP(1)
                                                                                         AS OF OCTOBER 31, 1997
                                                                                        -------------------------
NAME OF BENEFICIAL OWNER                                                                   SHARES       PERCENT
- --------------------------------------------------------------------------------------  ------------  -----------
<S>                                                                                     <C>           <C>
5% BENEFICIAL HOLDERS:
GE Entities (2).......................................................................     9,098,402       10.5%
Massachusetts Financial Services Company (3)..........................................     6,173,830        7.1
American Express Company (4)..........................................................     4,752,742        5.5
The Prudential Insurance Company of America (5).......................................     4,665,689        5.4
 
DIRECTORS AND NAMED EXECUTIVE OFFICERS:
Raymond E. Schultz....................................................................       488,084          *
Richard M. Kelleher...................................................................       431,622          *
Richard J. Ferris (6).................................................................     1,607,432        1.9
Priscilla Florence....................................................................        10,123          *
Dale F. Frey..........................................................................        10,123          *
Christopher W. Hart...................................................................         4,285          *
Michael W. Michelson (7)..............................................................        10,123          *
John H. Myers (8).....................................................................            --         --
C. Warren Neel........................................................................         3,673          *
Michael D. Rose (9)...................................................................     1,208,013        1.4
Michael I. Roth.......................................................................        10,169          *
Jay Stein.............................................................................       413,132          *
Ronald Terry..........................................................................        81,139          *
Peter V. Ueberroth (10)...............................................................     1,155,432        1.3
Thomas L. Keltner.....................................................................       105,866          *
William L. Perocchi...................................................................       260,759          *
Thomas W. Storey......................................................................       220,085          *
All Directors and Executive Officers as a group (17 individuals)......................     6,020,060        7.0
</TABLE>
 
- ------------------------
 
*   Less than 1%
 
(1) Includes shares subject to options and warrants which will be exercisable at
    the Effective Time. All percentages assume that the options or warrants of
    the particular person or group in question, and no others, have been
    exercised.
 
(2) Based on Schedule 13D filed jointly by GEHOP, GE Investment Management
    Incorporated ("GEIM"), General Electric Company ("GE") and the Trustees of
    General Electric Pension Trust ("GEPT") (together, the "GE Entities") with
    the SEC. Shares indicated as beneficially owned by GEIM include 6,049,226
    shares owned of record by GEHOP, of which GEIM is the sole general partner,
    1,755 shares owned of record by GEIM and 3,027,421 shares beneficially owned
    by GEPT.
 
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<PAGE>
    GEIM is a wholly-owned subsidiary of GE, and thus GE may be deemed to be the
    beneficial owner of the 1,755 shares owned of record by GEIM. GEHOP, GEIM
    and GEPT each disclaim beneficial ownership of the shares owned by the
    others, and GE disclaims beneficial ownership of the shares owned by GEHOP
    and GEPT. Mr. Myers is an executive officer and director of GEIM and a
    Trustee of GEPT. Mr. Myers has voting and investment power with respect to
    such shares and, therefore, may be deemed to be a beneficial owner of such
    shares. Mr. Myers disclaims beneficial ownership of all such shares owned by
    the GE Entities.
 
(3) Based upon a Schedule 13G filed with the SEC on February 11, 1997.
    Massachusetts Financial Services Company has sole voting power as to
    6,101,263 shares and has sole dispositive power as to 6,173,830 shares.
 
(4) Based upon a Schedule 13G filed jointly by American Express Company ("AEC")
    and American Express Financial Corporation ("AEFC") with the SEC on October
    9, 1997. AEFC is a subsidiary of AEC. Both AEC and AEFC have shared voting
    power as to 2,111,590 shares and shared dispositive power as to 4,752,742
    shares. AEC disclaims beneficial ownership of all such shares.
 
(5) Based upon a Schedule 13G filed with the SEC on February 5, 1997, 4,640,725
    shares are beneficially owned by Jennison Associates Capital Corp., a
    wholly-owned subsidiary of Prudential. Prudential has sole voting power as
    to 485,555 shares, shared voting power as to 3,710,303 shares, sole
    dispositive power as to 485,555 shares, and shared dispositive power as to
    4,180,134 shares.
 
(6) Includes 1,532,432 shares owned of record by Ridge Partners, L.P ("Ridge").
    Mr. Ferris disclaims beneficial ownership of the shares of record owned by
    Ridge, except to the extent of his ownership of Ridge, through Kelrick,
    Inc., the sole general partner of Ridge. Also includes 30,000 restricted
    shares and 45,000 shares reserved for issuance upon exercise of options.
 
(7) Red Lion, a California Limited Partnership (the "Partnership") has sole
    voting and investment power with respect to 3,882,283 shares. RLA-GP, Inc.
    ("RLA") as the general partner of the Partnership may be deemed to be the
    beneficial owner of the shares owned by the Partnership. Mr. Michelson is a
    stockholder, director and an executive vice president of RLA and a director
    of Doubletree. Mr. Michelson is also a general partner of KKR Associates
    (Delaware), which is a limited partner of the Partnership. KKR Associates
    (Delaware) does not have the power to vote or dispose of shares owned by the
    Partnership. Mr. Michelson disclaims beneficial ownership of any shares of
    Common Stock held by the Partnership.
 
(8) Excludes 6,049,226 shares owned of record by GEHOP, 1,755 shares owned of
    record by GEIM, and 137,134 shares owned of record by GEPT. Mr. Myers is an
    executive officer and director of GEIM and Trustee of GEPT. Mr. Myers has
    voting and investment power with respect to such shares, and therefore, may
    be deemed to be a beneficial owner of such shares. Also excludes 20,000
    shares reserved for issuance upon exercise of an outstanding option granted
    to GEHOP. Also excludes 2,890,287 shares owned beneficially by GEPT. Mr.
    Myers disclaims beneficial ownership of all such shares.
 
(9) Includes 61,836 shares held by a charitable foundation of which Mr. Rose
    serves as a director and 8,182 shares owned by members of Mr. Rose's family.
    He disclaims beneficial ownership of such shares.
 
(10) Includes 919,459 shares beneficially owned by Peter V. and Virginia M.
    Ueberroth as co-trustees of The Ueberroth Family Trust. Also includes
    160,973 shares beneficially owned by Alice J. Saviez as trustee for the
    Ueberroth Investment Trust. Mr. Ueberroth disclaims beneficial ownership of
    such shares. Also includes 30,000 restricted shares of Common Stock granted
    to Mr. Ueberroth on January 2, 1997, and 45,000 shares reserved for issuance
    upon exercise of options.
 
                                       80
<PAGE>
                    DESCRIPTION OF NEW PROMUS CAPITAL STOCK
 
    THE FOLLOWING SUMMARY DESCRIPTION OF THE CAPITAL STOCK OF NEW PROMUS IS
QUALIFIED IN ITS ENTIRETY BY THE COMPLETE TEXT OF NEW PROMUS'S RESTATED
CERTIFICATE OF INCORPORATION AND BYLAWS WHICH ARE INCORPORATED HEREIN BY
REFERENCE AND ARE ATTACHED TO THIS JOINT PROXY STATEMENT/PROSPECTUS AS ANNEXES D
AND E, RESPECTIVELY.
 
GENERAL
 
    The authorized capital stock of New Promus upon completion of the Merger
will consist of 500,000,000 shares of New Promus Common Stock and 10,000,000
shares of preferred stock, par value $.01 per share of New Promus ("New Promus
Preferred Stock"). Based upon the number of shares of Doubletree Common Stock
and Promus Common Stock outstanding on the record date of the Doubletree Special
Meeting and the record date of the Promus Special Meeting, respectively, it is
anticipated that approximately 85,997,162 shares of New Promus Common Stock and
no shares of New Promus Preferred Stock will be issued and outstanding
immediately after the completion of the Merger.
 
NEW PROMUS COMMON STOCK
 
    Each share of New Promus Common Stock entitles the holder to one vote on
matters submitted to a vote of the stockholders. Under New Promus's Restated
Certificate of Incorporation the Board of Directors of New Promus will be
classified into three classes consisting of four, five and five directors,
respectively. The holders of New Promus Common Stock will not be entitled to
cumulate votes for the election of directors.
 
    The holders of New Promus Common Stock are entitled to receive ratably a
share of dividends declared by the New Promus Board of Directors. In the event
of liquidation, dissolution or winding up of New Promus, holders of New Promus
Common Stock have the right to a ratable portion of the assets remaining after
the payment of liabilities and liquidation preferences of any outstanding shares
of New Promus Preferred Stock. The holders of New Promus Common Stock have no
preemptive rights or rights to convert their New Promus Common Stock into other
securities. All outstanding shares of New Promus Common Stock immediately
following completion of the Merger will be fully paid and nonassessable. The
rights of the holders of New Promus Common Stock will be subject to, and may be
adversely affected by, the rights of the holders of New Promus Preferred Stock,
if any.
 
    It is a condition to the completion of the Merger that New Promus Common
Stock be approved for listing on the NYSE, subject to official notification of
issuance.
 
PREFERRED STOCK
 
    New Promus's Restated Certificate of Incorporation provides that New Promus
Preferred Stock may be issued from time to time in one or more series. The Board
of Directors has the authority to fix and determine the number of shares
constituting each such series and the relative rights, preferences, privileges
and immunities, if any, and any qualifications, limitations or restrictions
thereof, of the shares thereof, including the authority to fix and determine the
dividend rights, dividend rates, conversion rights, voting rights and terms of
redemption (including sinking fund provisions), redemption prices and
liquidation preferences of any wholly unissued series of New Promus Preferred
Stock and to increase or decrease the number of shares of any outstanding
series, without further vote or action by New Promus's stockholders. No New
Promus Preferred Stock is outstanding, no New Promus Preferred Stock will be
issued in connection with the Merger, and New Promus has no present plans to
issue any shares of New Promus Preferred Stock.
 
                                       81
<PAGE>
PREFERRED SHARE PURCHASE RIGHTS
 
    Prior to the Effective Time, the New Promus Board will authorize New
Promus's entry into a Rights Agreement (the "Rights Agreement") pursuant to
which one preferred stock purchase right (the "Rights") will be attached to each
share of New Promus Common Stock. The Rights will be transferable only with New
Promus Common Stock, until they become exercisable at an exercise price to be
determined by the New Promus Board prior to the time New Promus enters into the
Rights Agreement.
 
    Generally, the Rights will become exercisable only if a person or group
(other than certain affiliates of New Promus) acquires 15% or more of the issued
and outstanding shares of New Promus Common Stock or announces a tender offer,
the consummation of which would result in ownership by a person or group of 15%
or more of the issued and outstanding shares of New Promus Common Stock. Each
Right will entitle the holder, until the tenth anniversary of the Rights
Agreement, to buy one one-hundredth of a share of New Promus Preferred Stock, at
an exercise price to be determined by the New Promus Board prior to the time New
Promus enters the Rights Agreement.
 
    If a person or group (other than certain affiliates of New Promus) acquires
15% or more of the issued and outstanding shares of New Promus Common Stock or
if New Promus is the surviving corporation in a merger, each Right will entitle
its holder (other than such person or members of such group) to purchase, at the
Right's then current exercise price, shares of New Promus Common Stock having a
market value of twice the Right's exercise price. If New Promus is acquired in a
merger or other business combination transaction, other than a merger which
follows an offer which the Continuing Directors determines to be fair and in the
best interests of the stockholders, each Right will entitle its holder to
purchase, at the Right's then current exercise price, a number of the acquiring
company's common shares having a then current market value of twice the Rights'
exercise price.
 
    Following the acquisition by a person or group of beneficial ownership of
15% or more of the New Promus Common Stock, the Board of Directors of New Promus
may exchange the Rights (other than Rights owned by such person or group), in
whole or in part, at an exchange ratio of one share of New Promus Common Stock
per Right.
 
    Prior to the acquisition by a person or group of beneficial ownership of 15%
or more of the New Promus Common Stock, the Rights will be redeemable in whole,
not in part, for one cent per Right.
 
    New Promus's Transfer Agent, First Union National Bank, is expected to be
the Rights Agent under the Rights Agreement.
 
CERTAIN EFFECTS OF PREFERRED SHARE PURCHASE RIGHTS
 
    The issuance of the Rights to purchase shares of New Promus Preferred Stock
will have certain anti-takeover effects. The Rights will cause substantial
dilution to a person or group that attempts to acquire New Promus on terms not
approved by the Board of Directors of New Promus. The Rights should not
interfere with any merger or other business combination approved by the Board of
Directors of New Promus prior to ten days after the time that a person or group
has acquired beneficial ownership of 15% or more of the New Promus Common Stock,
as the Rights will be redeemable by New Promus at $0.01 per Right prior to such
time.
 
PROHIBITED BUSINESS TRANSACTIONS
 
    As a corporation organized under the laws of the State of Delaware, New
Promus is subject to Section 203 of the DGCL, which restricts certain business
combinations between New Promus and an "interested stockholder" (in general, a
stockholder owning 15% or more of the outstanding voting stock of New Promus) or
such stockholder's affiliates or associates for a period of three years
following the date on which the stockholder becomes an "interested stockholder."
The restrictions do not apply if: (i) prior to an interested stockholder
becoming such, the New Promus Board approves either the business combination or
 
                                       82
<PAGE>
the transaction by which such person became an interested stockholder; (ii) upon
consummation of the transaction, the interested stockholder owns at least 85% of
the voting stock of New Promus outstanding at the time the transaction commenced
(excluding shares owned by certain employee stock plans and persons who are both
directors and officers of New Promus); or (iii) at or subsequent to the time an
interested stockholder becomes such, the Business Combination is both approved
by the New Promus Board and authorized at an annual or special meeting of New
Promus's stockholder by the affirmative vote of at least two-thirds of the
outstanding voting stock of New Promus not owned by the interested stockholder.
 
    New Promus's Restated Certificate of Incorporation also prohibits business
combinations with "Interested Stockholders" and defines them to be anyone who is
or intends to become the beneficial owner of 10% or more of the voting stock of
New Promus. Unless approved by a majority of Continuing Directors (as defined in
the New Promus Restated Certificate of Incorporation) or the Interested
Stockholder satisfies a number of criteria relating to, among other things, the
consideration to be received by New Promus stockholders and the public
disclosure of the business combination, a proposed business combination with an
Interested Stockholder requires the affirmative vote of 75% of all the votes
entitled to be cast by holders of New Promus voting stock and not less than a
majority of votes entitled to be cast by holders of New Promus voting stock,
excluding the votes of the interested stockholder.
 
REGISTRAR AND TRANSFER AGENT
 
    The Registrar and Transfer Agent of New Promus is First Union National Bank.
 
                                       83
<PAGE>
         COMPARISON OF RIGHTS OF HOLDERS OF DOUBLETREE COMMON STOCK AND
                PROMUS COMMON STOCK BEFORE AND AFTER THE MERGER
 
    The following is a summary of certain of the material differences between
the rights of holders of Promus and Doubletree Common Stock before the Merger
and the rights of holders of New Promus Common Stock after the Merger. Because
Doubletree, Promus and New Promus are all organized under the laws of the State
of Delaware, the differences arise solely from differences between various
provisions of their respective Certificates of Incorporation and Bylaws. Other
than as described below under
"--Authorized Capital," "--Number of Directors" and "--Amendment of Bylaws," the
Restated Certificate of Incorporation and Bylaws of New Promus will be
substantially similar to the Restated Certificate of Incorporation and the
Bylaws of Promus.
 
    The discussion of the comparative rights of the stockholders of Doubletree,
Promus and New Promus set forth below does not purport to be complete and is
subject to and qualified in its entirety by reference to the Certificates of
Incorporation and Bylaws of Doubletree, Promus and New Promus.
 
AUTHORIZED CAPITAL
 
    The total number of shares New Promus will have the authority to issue will
be 510,000,000, consisting of 500,000,000 shares of common stock, par value
$0.01 per share, and 10,000,000 shares of New Promus Preferred Stock. The total
number of shares of capital stock which Doubletree has authority to issue is
105,000,000, consisting of 100,000,000 shares of common stock, par value $0.01
per share and 5,000,000 shares of preferred stock, par value $0.01 per share.
The total number of shares of stock which Promus has the authority to issue is
365,150,000, consisting of 360,000,000 shares of common stock, par value $0.10
per share, 150,000 shares of preferred stock, par value $100.00 per share, and
5,000,000 shares of special stock, par value $1.125 per share.
 
NUMBER OF DIRECTORS
 
    New Promus's Bylaws fix the number of directors at fourteen, half of whom
shall be Doubletree Directors and half of whom shall be Promus Directors. Each
Committee of the Board of Directors will have an equal number of Promus
Directors and Doubletree Directors. Until December 31, 2002, in the event that
the number of Doubletree Directors or Promus Directors serving on the New Promus
Board of Directors or any Committee thereof shall not be equal, then the New
Promus Board of Directors and the Nominating Committee thereof shall nominate
for election at the next stockholders' meeting at which directors are to be
elected, such person or persons as may be requested by the remaining Doubletree
Directors (if the number of Doubletree Directors is less than the number of
Promus Directors) or by the remaining Promus Directors (if the number of Promus
Directors is less than the number of Doubletree Directors) to ensure that there
shall be an equal number of Doubletree Directors and Promus Directors.
 
    The size of the New Promus Board of Directors and each Committee of the New
Promus Board of Directors shall not be increased until December 31, 2002 without
being approved by 75% of the members of the New Promus Board of Directors.
Doubletree's Bylaws state that the number of directors shall be such number as
the Board of Directors shall designate, and in the absence of a designation the
number shall be eight. Promus's Restated Certificate of Incorporation provides
for a Board of Directors consisting of not less than three or more than
seventeen members, with the specific number of directors being set by the Promus
Board of Directors. New Promus's Restated Certificate of Incorporation provides
for a Board of Directors consisting of not less than three or more than twenty
members, with the specific number of directors being set by the New Promus Board
of Directors.
 
CLASSES AND TERMS OF DIRECTORS
 
    New Promus's Restated Certificate of Incorporation provides for a classified
Board of Directors consisting of three classes of directors, four Class I
directors, five Class II directors and five Class III
 
                                       84
<PAGE>
directors. After initial one, two and three year terms for Class I, Class II and
Class III directors respectively, each director will be elected for a term
expiring at the third succeeding annual meeting of stockholders after his or her
election. Promus's Restated Certificate of Incorporation also provides for a
classified Board of Directors, consisting of three classes of directors.
Doubletree's and Bylaws do not provide for a classified Board of Directors.
 
ACTIONS BY WRITTEN CONSENT OF STOCKHOLDERS; SPECIAL MEETINGS OF STOCKHOLDERS
 
    The Restated Certificates of Incorporation of Promus and New Promus provide
that stockholders may not take any action by written consent in lieu of a
meeting. Doubletree's Certificate of Incorporation provide that an action
required to be taken by a meeting of a class of stockholders may be taken
without a meeting if a consent in writing is given by all the holders of the
outstanding class of stock.
 
    The Restated Certificates of Incorporation of Promus and New Promus provide
that special meetings of stockholders may only be called by a majority of the
entire Board of Directors or by the Chairman of the Board of Directors or
President. The Certificate of Incorporation of Doubletree provides that special
meetings of stockholders may be called by the Board of Directors, the Chairman
or Co-Chairman of the Board of Directors or the President.
 
AMENDMENT OF BYLAWS
 
    New Promus's Restated Certificate of Incorporation provides that
stockholders can amend New Promus's Bylaws with an affirmative vote of 75% of
the votes entitled to be cast. The New Promus Board of Directors may amend its
Bylaws by majority vote, other than certain provisions of New Promus's Bylaws
regarding the Board of Directors and executive officers of New Promus,
amendments to which by the New Promus Board of Directors require the approval of
75% of the Board of Directors of New Promus. The Doubletree Bylaws may be
altered, amended or repealed, or new Bylaws may be adopted by a majority of the
Board of Directors or by a majority of the stockholders of Doubletree.
 
BUSINESS COMBINATION PROVISIONS
 
    New Promus, Promus and Doubletree are all subject to Section 203 of the
DGCL. In addition, unless approved by a majority of Continuing Directors (as
defined in their respective Restated Certificates of Incorporation) or an
"Interested Stockholder" (defined as anyone who is or intends to become the
beneficial owner of 10% or more of the voting stock of Promus or New Promus, as
applicable) satisfies a number of criteria relating to, among other things, the
consideration to be received by stockholders and the public disclosure of the
business combination, the Restated Certificates of Incorporation of Promus and
New Promus prohibit a business combination with an Interested Stockholder
without an affirmative vote of 75% of the votes entitled to be cast by holders
of voting stock of Promus and New Promus, as applicable, and not less than a
majority of the votes entitled to be cast by holders of voting stock of Promus
and New Promus, as applicable, excluding the votes of the Interested
Stockholder.
 
RETIREMENT OF DIRECTORS
 
    Doubletree's Bylaws require all current and future directors to retire
immediately prior to the annual meeting of stockholders in the year the director
reaches 70 years of age. Neither New Promus's nor Promus's Bylaws contain a
similar provision.
 
                                       85
<PAGE>
            PROPOSAL TO APPROVE NEW PROMUS EQUITY PARTICIPATION PLAN
 
NEW PROMUS EQUITY PARTICIPATION PLAN
 
    Prior to the Special Meetings, the New Promus Board of Directors will adopt
and approve the 1997 Equity Participation Plan of New Promus (the "New Promus
Equity Participation Plan") and reserve 10,000,000 shares of New Promus Common
Stock for stock options and other stock awards to employees of New Promus and
its subsidiaries and other eligible participants after the Merger. The principal
purposes of the New Promus Equity Participation Plan will be to provide
incentives for officers, employees and consultants of New Promus and its
subsidiaries through granting of options, restricted stock and other awards
("Awards"), thereby stimulating their personal and active interest in New
Promus's development and financial success, and inducing them to remain in New
Promus's employ. In addition to Awards made to officers, employees or
consultants, the New Promus Equity Participation Plan will permit the granting
of Awards to New Promus's independent, non-employee directors ("Independent
Directors").
 
    Under the New Promus Equity Participation Plan, not more than 10,000,000
shares of New Promus Common Stock (or the equivalent in other equity securities)
will be authorized for issuance upon exercise of options, stock appreciation
rights ("SARs"), and other Awards, or upon vesting of restricted or deferred
stock awards. Under the New Promus Equity Participation Plan, no more than
150,000 shares of New Promus Common Stock may be issued with respect to Awards
which are not stock options or which are not issued in lieu of cash payments of
compensation or directors' fees. These options will be in addition to
outstanding options to purchase Doubletree Common Stock and Promus Common Stock,
which will be deemed to constitute options to purchase New Promus Common Stock
at the Effective Time. See "The Merger Agreement--Certain Covenants--Stock
Plans." No stock options or other equity awards will be granted under the
Doubletree Incentive Plan or the Promus Incentive Plans after the Effective
Time. Furthermore, the maximum number of shares which may be subject to Awards
granted under the New Promus Equity Participation Plan to any individual in any
calendar year will not exceed 500,000 shares.
 
    The principal features of the New Promus Equity Participation Plan are
summarized below, but the summary is qualified in its entirety by reference to
the New Promus Equity Participation Plan which is attached as Annex F to this
Joint Proxy Statement/Prospectus.
 
ADMINISTRATION
 
    The Human Resources Committee of the New Promus Board of Directors (the
"Committee") will administer the New Promus Equity Participation Plan with
respect to grants to officers, employees or consultants of New Promus and the
full Board will administer the New Promus Equity Participation Plan with respect
to grants to Independent Directors. The Committee will consist of at least two
members of the Board, each of whom is a "non-employee director" for purposes of
Rule 16b-3 under the Exchange Act ("Rule 16b-3") and an "outside director" for
the purposes of Section 162(m) of the Code ("Section 162(m)"). Subject to the
terms and conditions of the New Promus Equity Participation Plan, the New Promus
Board or the Committee has the authority to select the persons to whom Awards
are to be made, to determine the number of shares to be subject thereto and the
terms and conditions thereof, and to make all other determinations and to take
all other actions necessary or advisable for the administration of the New
Promus Equity Participation Plan. Similarly, the New Promus Board has discretion
to determine the terms and conditions of grants to Independent Directors and to
interpret and administer the New Promus Equity Participation Plan with respect
to grants to Independent Directors.
 
ELIGIBILITY
 
    Options, SARs, restricted stock and other Awards under the New Promus Equity
Participation Plan may be granted to individuals who are then officers or other
employees of New Promus or any of its present or future subsidiaries. Such
Awards also may be granted to consultants of New Promus selected by the
Committee for participation in the New Promus Equity Participation Plan.
Independent Directors of
 
                                       86
<PAGE>
New Promus will be granted NQSOs (as defined herein) and stock payments and may
be granted restricted stock or deferred stock in lieu of directors' fees by the
New Promus Board.
 
AWARDS UNDER THE NEW PROMUS EQUITY PARTICIPATION PLAN
 
    The New Promus Equity Participation Plan provides that the Committee may
grant or issue stock options, SARs, restricted stock, deferred stock, dividend
equivalents, performance awards, stock payments and other stock related
benefits, or any combination thereof. Each Award will be set forth in a separate
agreement or certificate and will indicate the type, terms and conditions of the
Award.
 
    NONQUALIFIED STOCK OPTIONS ("NQSOS") will provide for the right to purchase
New Promus Common Stock at a specified price which may not be less than fair
market value on the date of grant and usually will become exercisable, in the
discretion of the Committee (and the New Promus Board with respect to grants to
Independent Directors) in one or more installments after the grant date, subject
to the participant's continued provision of services to New Promus and/or
subject to the satisfaction of individual or New Promus performance targets
established by the Committee. NQSOs may be granted for any term specified by the
Committee, not to exceed ten years from the date of grant. The New Promus Equity
Participation Plan will authorize the Committee and the New Promus Board with
respect to Independent Directors to, and it is expected that the Committee and
the New Promus Board with respect to Independent Directors will, adopt
procedures pursuant to which employees, consultants and Independent Directors
will be permitted to elect to receive bonuses or directors' fees, which would
otherwise be payable to them in cash, in the form of NQSOs.
 
    Under the New Promus Equity Participation Plan, each person who is an
Independent Director as of the Effective Time will be granted an NQSO to
purchase 10,000 shares of New Promus Common Stock as of the Effective Time and
each Independent Director who is initially elected to the Board after the
Effective Time will be granted an NQSO to purchase 10,000 shares of New Promus
Common Stock as of the date of such initial election. Such NQSOs will (i) have a
per share exercise price equal to the fair market value of a share of New Promus
Common Stock as of the date of grant, (ii) have a term of ten years and (iii)
become exercisable in four equal annual installments, beginning on the first
anniversary of the date of grant.
 
    INCENTIVE STOCK OPTIONS ("ISOS"), will be designed to comply with the
provisions of the Code and will be subject to certain restrictions contained in
the Code. Among such restrictions, ISOs must have an exercise price not less
than the fair market value of a share of New Promus Common Stock on the date of
grant, may only be granted to employees, must expire within a specified period
of time following the optionee's termination of employment, and must be
exercised within the ten years after the date of grant; but, subject to the
consent of the optionee, may be subsequently modified to disqualify them from
treatment as ISOs. In the case of an ISO granted to an individual who owns (or
is deemed to own) at least 10% of the total combined voting power of all classes
of stock of New Promus, the New Promus Equity Participation Plan provides that
the exercise price must be at least 110% of the fair market value of a share of
New Promus Common Stock on the date of grant and the ISO must expire upon the
fifth anniversary of the date of its grant.
 
    RESTRICTED STOCK may be sold to participants at various prices (but not
below par value) and made subject to such restrictions as may be determined by
the New Promus Board or the Committee. Restricted stock, typically, may be
repurchased by New Promus at the original purchase price if the conditions or
restrictions are not met. In general, restricted stock may not be sold, or
otherwise transferred or hypothecated, until restrictions are removed or expire.
Purchasers of restricted stock, unlike recipients of options, will have voting
rights and will receive dividends prior to the time when the restrictions lapse.
The New Promus Equity Participation Plan will authorize the New Promus Board to
adopt procedures pursuant to which Independent Directors may receive a portion
of their directors' fees in the form of restricted stock.
 
                                       87
<PAGE>
    DEFERRED STOCK may be awarded to participants, typically without payment of
consideration, but subject to vesting conditions based on continued employment
or on performance criteria established by the Committee. Like restricted stock,
deferred stock may not be sold, or otherwise transferred or hypothecated, until
vesting conditions are removed or expire. Unlike restricted stock, deferred
stock will not be issued until the deferred stock award has vested, and
recipients of deferred stock generally will have no voting or dividend rights
prior to the time when vesting conditions are satisfied. The New Promus Equity
Participation Plan will authorize the New Promus Board to, and it's expected
that the New Promus Board will, adopt procedures pursuant to which Independent
Directors may elect to receive a portion of their directors' fees in the form of
deferred stock.
 
    STOCK APPRECIATION RIGHTS may be granted in connection with stock options or
other Awards, or separately. SARs granted by the Committee in connection with
stock options or other awards typically will provide for payments to the holder
based upon increases in the price of New Promus's Common Stock over the exercise
price of the related option or other Awards, but alternatively may be based upon
criteria such as book value. Except as required by Section 162(m) with respect
to an SAR which is intended to qualify as performance-based compensation as
described in Section 162(m), there are no restrictions specified in the New
Promus Equity Participation Plan on the exercise of SARs or the amount of gain
realizable therefrom, although restrictions may be imposed by the Committee in
the SAR agreements. The Committee may elect to pay SARs in cash or in New Promus
Common Stock or in a combination of both. The holder does not pay any
consideration to New Promus upon the grant or exercise of a SAR.
 
    DIVIDEND EQUIVALENTS represent the value of the dividends per share paid by
New Promus, calculated with reference to the number of shares covered by the
stock options, SARs or other Awards held by the participant.
 
    PERFORMANCE-BASED AWARDS may be granted by the Committee on an individual or
group basis. Generally, these Awards will be based upon specific performance
targets and may be paid in cash or in New Promus Common Stock or in a
combination of both. Performance Awards may include "phantom" stock Awards that
provide for payments based upon increases in the price of New Promus Common
Stock over a predetermined period. Performance-Based Awards may also include
bonuses which may be granted by the Committee on an individual or group basis
and which may be payable in cash or in New Promus Common Stock or in a
combination of both. The payment of a Performance-Based Award in cash will not
reduce the number of shares reserved under the New Promus Equity Participation
Plan.
 
    STOCK PAYMENTS may be authorized by the Committee in the form of shares of
New Promus Common Stock or an option or other right to purchase New Promus
Common Stock as part of a deferred compensation arrangement in lieu of all or
any part of compensation, including bonuses, that would otherwise be payable in
cash to the key employee or consultant. In addition, during the term of the
Plan, on the date of each annual meeting of stockholders, each Independent
Director who is entitled to receive a payment of cash fees on such date shall be
granted a stock payment, in lieu of cash fees which such Independent Director
would otherwise receive, which shall have an aggregate fair market value of
$15,000 as of the date of such grant.
 
SECURITIES LAWS AND FEDERAL INCOME TAXES
 
    SECURITIES LAWS.  The New Promus Equity Participation Plan is intended to
conform to the extent necessary with all provisions of the Securities Act and
the Exchange Act and any and all regulations and rules promulgated by the SEC
thereunder, including without limitation Rule 16b-3. The New Promus Equity
Participation Plan will be administered, and Awards will be granted and may be
exercised, only in such a manner as to conform to such laws, rules and
regulations. To the extent permitted by applicable law, the New Promus Equity
Participation Plan and Awards granted thereunder shall be deemed amended to the
extent necessary to conform to such laws, rules and regulations.
 
                                       88
<PAGE>
    GENERAL FEDERAL TAX CONSEQUENCES.  Under current federal laws, in general,
recipients of awards and grants of nonqualified stock options, stock
appreciation rights, restricted stock, deferred stock, dividend equivalents,
performance awards, and stock payments under the New Promus Equity Participation
Plan are taxable under Section 61 or 83 of the Code upon their receipt of New
Promus Common Stock or cash with respect to such awards or grants and, subject
to Section 162(m) of the Code, New Promus will be entitled to an income tax
deduction with respect to the amounts taxable to such recipients. Under Sections
421 and 422 of the Code, recipients of ISOs are generally not taxable on their
receipt of New Promus Common Stock upon their exercises of ISOs if the ISOs and
option stock are held for certain minimum holding periods and, in such event,
New Promus is not entitled to income tax deductions with respect to such
exercises. Participants in the New Promus Equity Participation Plan will be
provided with detailed information regarding the tax consequences relating to
the various types of awards and grants under the plan.
 
    SECTION 162(M) LIMITATION.  In general, under Section 162(m), income tax
deductions of publicly-held corporations may be limited to the extent total
compensation (including base salary, annual bonus, stock option exercises,
transfers of property and benefits paid under non-qualified plans) for certain
executive officers exceeds $1 million (less the amount of any "excess parachute
payments" as defined in Section 280G of the Code) per officer in any one year.
However, under Section 162(m), the deduction limit does not apply to certain
"performance-based compensation."
 
    Under Section 162(m), stock options and SARs will satisfy the
"performance-based compensation" exception if the award of the options or SARs
are made by a Board of Directors committee consisting solely of 2 or more
"outside directors," the plan sets the maximum number of shares that can be
granted to any person within a specified period and the compensation is based
solely on an increase in the stock price after the grant date (i.e. the option
or SAR exercise price is equal to or greater than the fair market value of the
stock subject to the award on the grant date). Other types of awards may only
qualify as "performance-based compensation" if such awards are only granted or
payable to the recipients based upon the attainment of objectively determinable
and pre-established performance goals which are established by a qualifying
committee and which relate to performance criteria which are approved by the
corporation's shareholders.
 
    The New Promus Equity Participation Plan has been designed in order to
permit the Committee to grant stock options and SARs which will qualify as
"performance-based compensation." In addition, in order to permit Awards other
than stock options and SARS to qualify as "performance-based compensation," the
New Promus Equity Participation Plan provides that the Committee may designate
as "Section 162(m) Participants" certain employees whose compensation for a
given fiscal year may be subject to the limit on deductible compensation imposed
by Section 162(m). The Committee may grant Awards to Section 162(m) Participants
that vest or become exercisable upon the attainment of performance criteria
which are related to one or more of the following performance goals: (i)
net-income; (ii) pre-tax income; (iii) operating income; (iv) cash flow; (v)
earnings per share; (vi) return on equity; (vii) return on invested capital or
assets; (viii) cost reductions or savings; (ix) funds from operations, (x)
appreciation in the fair market value of New Promus Common Stock and (xi)
earnings before any one or more of the following items: interest, taxes,
depreciation or amortization.
 
RECOMMENDATION OF THE BOARDS OF DIRECTORS
 
    The Board of Directors of Doubletree, Promus and New Promus recommend
approval of the New Promus Equity Participation Plan. The proposal must be
approved by the holders of at least at majority of the shares present and
entitled to vote on the matter at the Doubletree Special Meeting, PROVIDED that
the total votes cast on the matter represent over 50% of the Common Stock
entitled to vote on the matter. The proposal must also be approved by the
holders of at least a majority of the total votes of the shares present and
entitled to vote on the matter at the Promus Special Meeting, PROVIDED that the
total votes cast on the matter represent over 50% in interest of all securities
entitled to vote on the matter. Neither abstentions
 
                                       89
<PAGE>
nor broker non-votes will be counted as votes cast for purposes of determining
whether the votes cast represent over 50% in interest of the securities entitled
to vote, and because an affirmative vote of a majority of the total votes of the
shares present and entitled to vote is required, abstentions and broker
non-votes may have the same effect as votes against approval of the New Promus
Equity Participation Plan if they result in a failure of the total votes cast to
represent over 50% in interest of the securities entitled to vote. The enclosed
proxy will be voted in accordance with the instructions specified in the space
provided on the form of proxy. If no instructions are given, proxies will be
voted for approval of the New Plan. Approval of the Merger is not conditioned
upon approval of the New Plan.
 
                             STOCKHOLDER PROPOSALS
 
    If the Merger is consummated, the first annual meeting of the stockholders
of New Promus after such consummation is expected to be held on or about April
29, 1998. If the Merger is not consummated, the 1998 annual meeting of
stockholders of Doubletree is expected to be held on or about May 1, 1998 and
the 1998 annual meeting of the stockholders of Promus is expected to be held on
or about April 29, 1998.
 
    Subject to the foregoing, if any New Promus stockholder intends to present a
proposal at the 1998 New Promus annual meeting and wishes to have such proposal
considered for inclusion in the proxy materials for such meeting, such holder
must submit the proposal to the Secretary of New Promus in writing so as to be
received at the executive offices of New Promus by November 14, 1997. Such
proposals must also meet the other requirements of the rules of the SEC relating
to stockholders' proposals.
 
    In addition to any other applicable requirements, the Bylaws of New Promus
require that for business to be properly brought before an annual meeting by a
stockholder, the stockholder must have given timely notice thereof, containing
the information required by the New Promus Bylaws and in writing, to the
Corporate Secretary of New Promus. To be timely, a stockholder's notice
containing the information required by the New Promus Bylaws must be delivered
to or mailed and received at the principal executive offices of New Promus not
less than sixty days nor more than ninety days prior to the meeting; provided,
however, that in the event that less than seventy days notice or prior public
disclosure of the date of the annual meeting is given or made to stockholders,
notice by a stockholder, to be timely, must be received no later than the close
of business on the tenth day following the day on which such notice of the date
of the annual meeting was mailed or such public disclosure was made, whichever
first occurs.
 
    In the event the Merger is not consummated, the only stockholder proposals
eligible to be considered for inclusion in the proxy materials for the 1998
annual meetings of Doubletree and Promus will be those which were duly submitted
to the Secretary of Doubletree or Promus, as the case may be, by November 14,
1997, as provided in the respective 1997 Annual Meeting Proxy Statements of
Doubletree and Promus.
 
                                 LEGAL MATTERS
 
    The validity of the shares of New Promus Common Stock to be issued in
connection with the Merger will be passed upon by Latham & Watkins, Los Angeles,
California.
 
                                    EXPERTS
 
    The consolidated financial statements of Doubletree Corporation and
subsidiaries as of December 31, 1996 and 1995, and for each of the years in the
three-year period ended December 31, 1996, have been incorporated by reference
herein in reliance upon the report of KPMG Peat Marwick LLP, independent
certified public accountants, incorporated by reference herein, and upon the
authority of said firm as experts in accounting and auditing. It is expected
that a representative of KPMG Peat Marwick LLP will be present at the Doubletree
Special Meeting to respond to appropriate questions of stockholders and to make
a statement if such representative desires.
 
                                       90
<PAGE>
    The consolidated financial statements of Red Lion Hotels, Inc. as of and for
the ten months ended December 31, 1995 and of Red Lion, a California Limited
Partnership (Historical Red Lion), for the seven months ended July 31, 1995
incorporated herein by reference from Doubletree's Current Report on Form 8-K
filed November 22, 1996 have been audited by Deloitte & Touche LLP, independent
accountants, as stated in their reports which are incorporated herein by
reference, and have been so incorporated in reliance upon reports of such firm
given upon their authority as experts in accounting and auditing.
 
    The consolidated financial statements of Promus incorporated by reference
into this Joint Proxy Statement/Prospectus have been audited by Arthur Andersen
LLP, independent certified public accountants, as indicated in their reports
with respect thereto, and are incorporated by reference herein in reliance upon
the authority of said firm as experts in giving said reports. A representative
of Arthur Andersen LLP is expected to be present at the Promus Special Meeting
with an opportunity to make a statement if he desires to do so, and such
representative is expected to be available to respond to appropriate questions.
 
    The consolidated financial statements incorporated by reference into this
Joint Proxy Statement/ Prospectus relating to Historical Red Lion and its
subsidiaries, to the extent and for the periods indicated in their reports, have
been audited by Arthur Andersen LLP, independent public accountants, and are
incorporated by reference herein in reliance upon the authority of said firm as
experts in giving said reports. Reference is made to the report on the Financial
Statements of Historical Red Lion, which includes an explanatory paragraph with
respect to changes in accounting for joint ventures and the accounting method
for measuring impairment of hotel properties, effective January 1, 1993, as
discussed in Note 1 of those Financial Statements.
 
                                 OTHER MATTERS
 
    As of the date of this Joint Proxy Statement/Prospectus, the Doubletree
Board of Directors and the Promus Board of Directors know of no matters that
will be presented for consideration at the Doubletree Special Meeting or the
Promus Special Meeting other than as described in this Joint Proxy Statement/
Prospectus. If any other matters shall properly come before either stockholder
meeting or any adjournments or postponements thereof and be voted upon, the
enclosed proxies will be deemed to confer discretionary authority on the
individuals named as proxies therein to vote the shares represented by such
proxies as to any such matters. The persons named as proxies intend to vote or
not to vote in accordance with the recommendation of the respective managements
of Doubletree and Promus.
 
                                       91
<PAGE>
                      WHERE YOU CAN FIND MORE INFORMATION
 
    Doubletree and Promus file annual, quarterly and special reports, proxy
statements and other information with the SEC. You may read and copy any
reports, statements or other information we file at the SEC's public reference
rooms in Washington, D.C., New York, New York and Chicago, Illinois. Please call
the SEC at 1-800-SEC-0330 for further information on the public reference rooms.
Our SEC filings are also available to the public from commercial document
retrieval services and at the web site maintained by the SEC at
"http://www.sec.gov."
 
    New Promus filed a Registration Statement on Form S-4 to register with the
SEC the New Promus Common Stock to be issued to Doubletree and Promus
stockholders in the Merger. This Joint Proxy Statement/Prospectus is a part of
that Registration Statement and constitutes a prospectus of New Promus in
addition to being a proxy statement of Doubletree and Promus for the Special
Meetings. As allowed by SEC rules, this Joint Proxy Statement/Prospectus does
not contain all the information you can find in the Registration Statement or
the exhibits to the Registration Statement.
 
    The SEC allows us to "incorporate by reference" information into this Joint
Proxy Statement/ Prospectus, which means that we can disclose important
information to you by referring you to another document filed separately with
the SEC. The information incorporated by reference is deemed to be part of this
Joint Proxy Statement/Prospectus, except for any information superseded by
information in this Joint Proxy Statement/Prospectus. This Joint Proxy
Statement/Prospectus incorporates by reference the documents set forth below
that we have previously filed with the SEC. These documents contain important
information about our companies and their finances.
 
<TABLE>
<CAPTION>
DOUBLETREE SEC FILINGS (FILE NO. 0-24392)                        PERIOD
- ---------------------------------------------------------------  ------------------------------------------------
<S>                                                              <C>
 
Annual Report on Form 10-K                                       Year ended December 31, 1996
 
Quarterly Reports on Form 10-Q                                   Quarters ended March 31, 1997, June 30, 1997 and
                                                                   September 30, 1997
 
Current Reports on Form 8-K and Form 8-K/A                       Filed on November 22, 1996, September 5, 1997,
                                                                   September 9, 1997 and October 9, 1997
 
PROMUS SEC FILINGS (FILE NO. 1-11463)                            PERIOD
- ---------------------------------------------------------------  ------------------------------------------------
Annual Report on Form 10-K                                       Year ended December 31, 1996
 
Quarterly Reports on Form 10-Q                                   Quarters ended March 31, 1997, June 30, 1997 and
                                                                   September 30, 1997
 
Current Reports on Form 8-K                                      Filed on September 5, 1997
</TABLE>
 
    We are also incorporating by reference additional documents that we may file
with the SEC between the date of this Joint Proxy Statement/Prospectus and the
dates of the Special Meetings of our stockholders.
 
    Doubletree has supplied all information contained or incorporated by
reference in this Joint Proxy Statement/Prospectus relating to Doubletree and
Promus has supplied all such information relating to Promus.
 
    If you are a stockholder, we may have sent you some of the documents
incorporated by reference, but you can obtain any of them through us or the SEC.
Documents incorporated by reference are available from us without charge,
excluding all exhibits unless we have specifically incorporated by reference an
exhibit in this Joint Proxy Statement/Prospectus. Stockholders may obtain
documents incorporated by
 
                                       92
<PAGE>
reference in this Joint Proxy Statement/Prospectus by requesting them in writing
or by telephone from the appropriate party at the following addresses:
 
<TABLE>
<S>                                    <C>
Doubletree Corporation                 Promus Hotel Corporation
Attention: David L. Stivers,
  Secretary                            Attention: Ralph B. Lake, Secretary
410 North 44th Street, Suite 700       755 Crossover Lane
Phoenix, Arizona 85008                 Memphis, Tennessee 38117
Telephone: (602) 220-6666              Telephone: (901) 374-5101
</TABLE>
 
    If you would like to request documents from us, please do so by December 11,
1997 to receive them before the Special Meetings.
 
    YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED OR INCORPORATED BY
REFERENCE IN THIS JOINT PROXY STATEMENT/PROSPECTUS TO VOTE ON THE MERGER. WE
HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH INFORMATION THAT IS DIFFERENT
FROM WHAT IS CONTAINED IN THIS JOINT PROXY STATEMENT/PROSPECTUS. THIS JOINT
PROXY STATEMENT/PROSPECTUS IS DATED NOVEMBER 14, 1997. YOU SHOULD NOT ASSUME
THAT THE INFORMATION CONTAINED IN THIS JOINT PROXY STATEMENT/PROSPECTUS IS
ACCURATE AS OF ANY DATE OTHER THAN NOVEMBER 14, 1997, AND NEITHER THE MAILING OF
THE JOINT PROXY STATEMENT/PROSPECTUS TO STOCKHOLDERS NOR THE ISSUANCE OF NEW
PROMUS COMMON STOCK IN THE MERGER SHALL CREATE ANY IMPLICATION TO THE CONTRARY.
 
                                       93
<PAGE>
                                                                         ANNEX A
 
                          AGREEMENT AND PLAN OF MERGER
 
                         DATED AS OF SEPTEMBER 1, 1997
 
                                     AMONG
 
                            DOUBLETREE CORPORATION,
 
                            PROMUS HOTEL CORPORATION
 
                                      AND
 
                              PARENT HOLDING CORP.
 
                                      A-1
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                             PAGE
                                                                                                           ---------
<S>                 <C>                                                                                    <C>
ARTICLE I.          THE MERGERS..........................................................................        A-9
 
  Section 1.1.      Certificate of Incorporation and Bylaws of Parent....................................        A-9
  Section 1.2.      The Doubletree Merger................................................................        A-9
  Section 1.3.      The Promus Merger....................................................................        A-9
  Section 1.4.      Effective Time of the Mergers........................................................        A-9
  Section 1.5.      Closing..............................................................................        A-9
  Section 1.6.      Effect of the Mergers................................................................        A-9
  Section 1.7.      Certificate of Incorporation and Bylaws of the Surviving Corporations................       A-10
  Section 1.8.      Directors and Officers of the Surviving Corporations.................................       A-10
 
ARTICLE II.         CONVERSION OF SECURITIES.............................................................       A-10
 
  Section 2.1.      Conversion of Doubletree Capital Stock...............................................       A-10
  Section 2.2.      Conversion of Promus Capital Stock...................................................       A-11
  Section 2.3.      Cancellation of Parent Stock.........................................................       A-11
  Section 2.4.      Exchange of Certificates.............................................................       A-11
 
ARTICLE III.        REPRESENTATIONS AND WARRANTIES OF DOUBLETREE.........................................       A-14
 
  Section 3.1.      Organization of Doubletree...........................................................       A-14
  Section 3.2.      Doubletree Capital Structure.........................................................       A-14
  Section 3.3.      Authority; No Conflict; Required Filings and Consents................................       A-15
  Section 3.4.      SEC Filings; Financial Statements....................................................       A-16
  Section 3.5.      No Undisclosed Liabilities...........................................................       A-17
  Section 3.6.      Absence of Certain Changes or Events.................................................       A-17
  Section 3.7.      Taxes................................................................................       A-17
  Section 3.8.      Properties...........................................................................       A-18
  Section 3.9.      Intellectual Property................................................................       A-18
  Section 3.10.     Agreements, Contracts and Commitments................................................       A-18
  Section 3.11.     Litigation...........................................................................       A-19
  Section 3.12.     Environmental Matters................................................................       A-19
  Section 3.13.     Employee Benefit Plans...............................................................       A-19
  Section 3.14.     Compliance With Laws.................................................................       A-20
  Section 3.15.     Accounting and Tax Matters...........................................................       A-20
  Section 3.16.     Registration Statement; Joint Proxy Statement/Prospectus.............................       A-21
  Section 3.17.     Labor Matters........................................................................       A-21
  Section 3.18.     Insurance............................................................................       A-21
  Section 3.19.     Doubletree Long-Range Plans..........................................................       A-22
  Section 3.20.     Opinion of Financial Advisor.........................................................       A-22
  Section 3.21.     No Existing Discussions..............................................................       A-22
  Section 3.22.     Section 203 of the DGCL Not Applicable...............................................       A-22
  Section 3.23.     Doubletree Rights Plan...............................................................       A-22
</TABLE>
 
                                      A-2
<PAGE>
<TABLE>
<CAPTION>
                                                                                                             PAGE
                                                                                                           ---------
<S>                 <C>                                                                                    <C>
ARTICLE IV.         REPRESENTATIONS AND WARRANTIES OF PROMUS.............................................       A-22
 
  Section 4.1.      Organization of Promus...............................................................       A-22
  Section 4.2.      Promus Capital Structure.............................................................       A-23
  Section 4.3.      Authority; No Conflict; Required Filings and Consents................................       A-23
  Section 4.4.      SEC Filings; Financial Statements....................................................       A-24
  Section 4.5.      No Undisclosed Liabilities...........................................................       A-25
  Section 4.6.      Absence of Certain Changes or Events.................................................       A-25
  Section 4.7.      Taxes................................................................................       A-25
  Section 4.8.      Properties...........................................................................       A-26
  Section 4.9.      Intellectual Property................................................................       A-26
  Section 4.10.     Agreements, Contracts and Commitments................................................       A-26
  Section 4.11.     Litigation...........................................................................       A-26
  Section 4.12.     Environmental Matters................................................................       A-27
  Section 4.13.     Employee Benefit Plans...............................................................       A-27
  Section 4.14.     Compliance With Laws.................................................................       A-28
  Section 4.15.     Accounting and Tax Matters...........................................................       A-28
  Section 4.16.     Registration Statement; Joint Proxy Statement/Prospectus.............................       A-28
  Section 4.17.     Labor Matters........................................................................       A-29
  Section 4.18.     Insurance............................................................................       A-29
  Section 4.19.     Promus Long-Range Plans..............................................................       A-29
  Section 4.20.     Opinion of Financial Advisor.........................................................       A-29
  Section 4.21.     No Existing Discussions..............................................................       A-29
  Section 4.22.     Section 203 of the DGCL Not Applicable...............................................       A-29
  Section 4.23.     Promus Rights Plan...................................................................       A-29
 
ARTICLE V.          COVENANTS............................................................................       A-29
 
  Section 5.1.      Conduct of Business..................................................................       A-29
  Section 5.2.      Cooperation; Notice; Cure............................................................       A-31
  Section 5.3.      No Solicitation......................................................................       A-31
  Section 5.4.      Joint Proxy Statement/Prospectus; Registration Statement.............................       A-32
  Section 5.5.      NASDAQ Quotation and NYSE Listing....................................................       A-32
  Section 5.6.      Access to Information................................................................       A-33
  Section 5.7.      Stockholders' Meetings...............................................................       A-33
  Section 5.8.      Legal Conditions to Merger...........................................................       A-33
  Section 5.9.      Public Disclosure....................................................................       A-34
  Section 5.10.     Nonrecognition Exchange..............................................................       A-34
  Section 5.11.     Pooling Accounting...................................................................       A-34
  Section 5.12.     Affiliate Agreements.................................................................       A-34
  Section 5.13.     NYSE Listing.........................................................................       A-34
  Section 5.14.     Stock Plans..........................................................................       A-35
  Section 5.15.     Brokers or Finders...................................................................       A-36
  Section 5.16.     Indemnification......................................................................       A-36
</TABLE>
 
                                      A-3
<PAGE>
<TABLE>
<CAPTION>
                                                                                                             PAGE
                                                                                                           ---------
<S>                 <C>                                                                                    <C>
  Section 5.17.     Letter of Promus's Accountants.......................................................       A-36
  Section 5.18.     Letter of Doubletree's Accountants...................................................       A-37
  Section 5.19.     Stock Option Agreements..............................................................       A-37
  Section 5.20.     Post-Merger Corporate Governance; Employment Arrangements............................       A-37
  Section 5.21.     Name of Parent.......................................................................       A-38
  Section 5.22.     Parent Stockholder Rights Plan; Amendment of Promus Rights Plan......................       A-38
  Section 5.23.     GEPT Warrant; Doubletree Registration Rights Agreement...............................       A-39
  Section 5.24.     Conveyance Taxes.....................................................................       A-39
  Section 5.25.     Transfer Taxes.......................................................................       A-39
  Section 5.26.     Stockholder Litigation...............................................................       A-39
  Section 5.27.     Employee Benefits; Severance.........................................................       A-40
 
ARTICLE VI.         CONDITIONS TO MERGER.................................................................       A-40
 
  Section 6.1.      Conditions to Each Party's Obligation to Effect the Mergers..........................       A-40
  Section 6.2.      Additional Conditions to Obligations of Doubletree...................................       A-41
  Section 6.3.      Additional Conditions to Obligations of Promus.......................................       A-42
 
ARTICLE VII.        TERMINATION AND AMENDMENT............................................................       A-42
 
  Section 7.1.      Termination..........................................................................       A-42
  Section 7.2.      Effect of Termination................................................................       A-44
  Section 7.3.      Fees and Expenses....................................................................       A-44
  Section 7.4.      Amendment............................................................................       A-45
  Section 7.5.      Extension; Waiver....................................................................       A-45
 
ARTICLE VIII.       MISCELLANEOUS........................................................................       A-46
 
  Section 8.1.      Nonsurvival of Representations, Warranties and Agreements............................       A-46
  Section 8.2.      Notices..............................................................................       A-46
  Section 8.3.      Interpretation.......................................................................       A-46
  Section 8.4.      Counterparts.........................................................................       A-47
  Section 8.5.      Entire Agreement; No Third Party Beneficiaries.......................................       A-47
  Section 8.6.      Governing Law........................................................................       A-47
  Section 8.7.      Assignment...........................................................................       A-47
 
EXHIBITS
 
    Exhibit A       Stock Option Agreement (Doubletree)
    Exhibit B       Stock Option Agreement (Promus)
    Exhibit C       Stockholder Support Agreement
    Exhibit D       Certificate of Incorporation of Parent
    Exhibit E       Bylaws of Parent
    Exhibit F       Form of Doubletree Affiliate Agreement
    Exhibit G       Form of Promus Affiliate Agreement
</TABLE>
 
                                      A-4
<PAGE>
                            TABLES OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                                                  CROSS REFERENCE
TERMS                                                                                              IN AGREEMENT
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Acquisition Proposal...........................................................................  Section 5.3(a)
Affiliate......................................................................................  Section 5.12
Affiliate Agreement............................................................................  Section 5.12
Agreement......................................................................................  Preamble
Alternative Transaction........................................................................  Section 7.3(e)
Bankruptcy and Equity Exception................................................................  Section 3.3(a)
Certificate of Merger..........................................................................  Section 1.4
Certificates...................................................................................  Section 2.4(b)
Closing........................................................................................  Section 1.5
Closing Date...................................................................................  Section 1.5
Code...........................................................................................  Preamble
Confidentiality Agreements.....................................................................  Section 5.3(a)
DGCL...........................................................................................  Section 1.2
Doubletree.....................................................................................  Preamble
Doubletree Balance Sheet.......................................................................  Section 3.4(b)
Doubletree Common Stock........................................................................  Section 2.1
Doubletree Director............................................................................  Section 5.20(a)
Doubletree Disclosure Schedule.................................................................  Article III
Doubletree Employee Plans......................................................................  Section 3.13(a)
Doubletree Employees...........................................................................  Section 5.27(b)
Doubletree Exchange Ratio......................................................................  Section 2.1(c)
Doubletree Material Adverse Effect.............................................................  Section 3.1
Doubletree Material Contracts..................................................................  Section 3.10(a)
Doubletree Merger..............................................................................  Section 1.2
Doubletree Preferred Stock.....................................................................  Section 3.2(a)
Doubletree Rights Plan.........................................................................  Section 3.2(b)
Doubletree SEC Reports.........................................................................  Section 3.4(a)
Doubletree Stock Option........................................................................  Section 5.14(a)
Doubletree Stock Option Agreement..............................................................  Preamble
Doubletree Stock Plans.........................................................................  Section 3.2(a)
Doubletree Stockholders' Meeting...............................................................  Section 3.16
Doubletree Sub.................................................................................  Section 1.2
Doubletree Surviving Corporation...............................................................  Section 1.6
Effective Time.................................................................................  Section 1.4
Environmental Law..............................................................................  Section 3.12(b)
ERISA..........................................................................................  Section 3.13(a)
ERISA Affiliate................................................................................  Section 3.13(a)
Exchange Act...................................................................................  Section 3.3(c)
Exchange Agent.................................................................................  Section 2.4(a)
Exchange Fund..................................................................................  Section 2.4(a)
GEPT Warrant...................................................................................  Section 3.2(b)
</TABLE>
 
                                      A-5
<PAGE>
<TABLE>
<CAPTION>
                                                                                                  CROSS REFERENCE
TERMS                                                                                              IN AGREEMENT
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Governmental Entity............................................................................  Section 3.3(c)
Hazardous Substance............................................................................  Section 3.12(c)
HSR Act........................................................................................  Section 3.3(c)
Indemnified Parties............................................................................  Section 5.16(a)
IRS............................................................................................  Section 3.7(b)
Joint Proxy Statement/Prospectus...............................................................  Section 3.16
Material Lease(s)..............................................................................  Section 3.8(a)
Mergers........................................................................................  Section 1.3
NYSE...........................................................................................  Section 2.4(e)
Order..........................................................................................  Section 5.8(b)
Outside Date...................................................................................  Section 7.1(b)
Parent.........................................................................................  Preamble
Parent Common Stock............................................................................  Section 2.1(c)
Parent Rights Plan.............................................................................  Section 5.22
Promus.........................................................................................  Preamble
Promus Balance Sheet...........................................................................  Section 4.4(b)
Promus Common Stock............................................................................  Section 2.2
Promus Director................................................................................  Section 5.20(a)
Promus Disclosure Schedule.....................................................................  Article IV
Promus Employee Plans..........................................................................  Section 4.13(a)
Promus Employees...............................................................................  Section 5.27(b)
Promus Exchange Ratio..........................................................................  Section 2.2(c)
Promus Material Adverse Effect.................................................................  Section 4.1
Promus Material Contracts......................................................................  Section 4.10(a)
Promus Merger..................................................................................  Section 1.3
Promus Preferred Stock.........................................................................  Section 4.2(a)
Promus Rights Plan.............................................................................  Section 4.2(b)
Promus SEC Reports.............................................................................  Section 4.4(a)
Promus Special Stock...........................................................................  Section 4.2(a)
Promus Stock Option............................................................................  Section 5.14(a)
Promus Stock Option Agreement..................................................................  Preamble
Promus Stock Plans.............................................................................  Section 4.2(a)
Promus Stockholders' Meeting...................................................................  Section 3.16
Promus Sub.....................................................................................  Section 1.3
Promus Surviving Corporation...................................................................  Section 1.6
Registration Statement.........................................................................  Section 3.16
Rule 145.......................................................................................  Section 5.12
SEC............................................................................................  Section 3.3(c)
Securities Act.................................................................................  Section 2.4(j)
Stock Option Agreements........................................................................  Preamble
Stockholder Support Agreement..................................................................  Preamble
Subsidiary.....................................................................................  Section 3.1
Superior Proposal..............................................................................  Section 5.3(a)
</TABLE>
 
                                      A-6
<PAGE>
<TABLE>
<CAPTION>
                                                                                                  CROSS REFERENCE
TERMS                                                                                              IN AGREEMENT
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Surviving Corporation..........................................................................  Section 1.6
Tax............................................................................................  Section 3.7(a)
Taxes..........................................................................................  Section 3.7(a)
Third Party....................................................................................  Section 5.3(a)
Transfer Taxes.................................................................................  Section 5.25
</TABLE>
 
                                      A-7
<PAGE>
                          AGREEMENT AND PLAN OF MERGER
 
    AGREEMENT AND PLAN OF MERGER (the "Agreement"), dated as of September 1,
1997, by and among DOUBLETREE CORPORATION, a Delaware corporation
("Doubletree"), PROMUS HOTEL CORPORATION, a Delaware corporation ("Promus") and
PARENT HOLDING CORP., a newly-formed Delaware corporation with nominal
capitalization, one-half of the issued and outstanding capital stock of which is
nominally owned by each of Doubletree and Promus ("Parent").
 
    WHEREAS, the Boards of Directors of Doubletree and Promus deem it advisable
and in the best interests of each corporation and its respective stockholders
that Doubletree and Promus combine in a "merger of equals" in order to advance
the interests of Doubletree and Promus and their respective stockholders;
 
    WHEREAS, the combination of Doubletree and Promus shall be effected by the
terms of this Agreement through (i) a merger of a wholly-owned subsidiary of
Parent with and into Doubletree and (ii) a merger of another wholly-owned
subsidiary of Parent with and into Promus, such that Doubletree and Promus
become wholly-owned subsidiaries of Parent and the stockholders of Doubletree
and Promus become stockholders of Parent;
 
    WHEREAS, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to each of Doubletree's and Promus's willingness
to enter into this Agreement, Doubletree and Promus have entered into (i) a
Stock Option Agreement dated as of the date of this Agreement and attached
hereto as Exhibit A (the "Doubletree Stock Option Agreement"), pursuant to which
Promus granted Doubletree an option to purchase shares of common stock of Promus
under certain circumstances, and (ii) a Stock Option Agreement dated as of the
date of this Agreement and attached hereto as Exhibit B (the "Promus Stock
Option Agreement" and, together with the Doubletree Stock Option Agreement, the
"Stock Option Agreements"), pursuant to which Doubletree granted Promus an
option to purchase shares of common stock of Doubletree under certain
circumstances;
 
    WHEREAS, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to Promus's willingness to enter into this
Agreement, certain stockholders of Doubletree have entered into a Stockholder
Support Agreement with Promus dated as of the date of this Agreement and
attached hereto as Exhibit C (the "Stockholder Support Agreement"), pursuant to
which such stockholders have agreed, among other things, to vote all voting
securities of Doubletree beneficially owned by them in favor of approval and
adoption of the Agreement and the Doubletree Merger (as defined in Section 1.2);
 
    WHEREAS, for Federal income tax purposes, it is intended that (i) the
Doubletree Merger shall qualify as a reorganization described in Section 368(a)
of the Internal Revenue Code of 1986, as amended (the "Code") and/or, taken
together with the Promus Merger (as defined in Section 1.3), as a transfer of
property to Parent by holders of Doubletree Common Stock (as defined in Section
2.1) described in Section 351 of the Code and (ii) the Promus Merger shall
qualify as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Doubletree Merger, as a transfer of property to Parent
by holders of Promus Common Stock described in Section 351 of the Code;
 
    WHEREAS, for accounting purposes, it is intended that the transactions
contemplated by this Agreement shall be accounted for as a pooling of interests;
and
 
    WHEREAS, the Boards of Directors of Doubletree and Promus have approved this
Agreement, the Stock Option Agreements and the Stockholder Support Agreement.
 
                                      A-8
<PAGE>
    NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth below, the
parties agree as follows:
 
                                   ARTICLE I.
 
                                  THE MERGERS
 
    Section 1.1  CERTIFICATE OF INCORPORATION AND BYLAWS OF PARENT.  Doubletree
and Promus shall cause the Certificate of Incorporation and Bylaws of Parent to
be amended prior to the Effective Time (as defined in Section 1.4) to be
substantially in the form of Exhibit D and Exhibit E hereto, respectively. From
the date hereof until the Effective Time, Doubletree and Promus shall consult
with each other prior to causing or permitting Parent to take any action and
neither shall cause or permit Parent to take any action inconsistent with the
provisions of this Agreement without the written consent of the other.
 
    Section 1.2.  THE DOUBLETREE MERGER.  Doubletree and Promus shall cause
Parent to form a wholly-owned subsidiary named Doubletree Acquisition Corp.
("Doubletree Sub") under the laws of the State of Delaware. Doubletree and
Promus will cause Parent to cause Doubletree Sub to execute and deliver this
Agreement. Upon the terms and subject to the provisions of this Agreement, and
in accordance with the Delaware General Corporation Code (the "DGCL"),
Doubletree Sub will merge with and into Doubletree (the "Doubletree Merger") at
the Effective Time (as defined in Section 1.4). Doubletree Sub will be formed
solely to facilitate the Doubletree Merger and will conduct no business or
activity other than in connection with the Doubletree Merger.
 
    Section 1.3.  THE PROMUS MERGER.  Doubletree and Promus shall cause Parent
to form a wholly-owned subsidiary named Promus Acquisition Corp. ("Promus Sub")
under the laws of the State of Delaware. Doubletree and Promus will cause Parent
to cause Promus Sub to execute and deliver this Agreement. Upon the terms and
subject to the provisions of this Agreement, and in accordance with the DGCL,
Promus Sub will merge with and into Promus (the "Promus Merger" and together
with the Doubletree Merger, the "Mergers") at the Effective Time (as defined in
Section 1.4). Promus Sub will be formed solely to facilitate the Promus Merger
and will conduct no business or activity other than in connection with the
Promus Merger.
 
    Section 1.4.  EFFECTIVE TIME OF THE MERGERS.  Subject to the provisions of
this Agreement, a certificate of merger with respect to each Merger in such form
as is required by the relevant provisions of the DGCL (individually, a
"Certificate of Merger" with respect to one of the Mergers, and collectively
with respect to both Mergers, the "Certificates of Merger") shall be duly
prepared, executed and acknowledged and thereafter delivered to the Secretary of
State of the State of Delaware for filing, as provided in the DGCL, as early as
practicable on the Closing Date (as defined in Section 1.5). Each Merger shall
become effective at such time as is specified in the Certificate of Merger (the
time at which both Mergers have become fully effective being hereinafter
referred to as the "Effective Time").
 
    Section 1.5  CLOSING.  The closing of the Mergers (the "Closing") will take
place at such time and place to be agreed upon by the parties hereto, on a date
to be specified by Promus and Doubletree, which shall be no later than the
second business day after satisfaction or, if permissible, waiver of the
conditions set forth in Article VI (the "Closing Date"), unless another date is
agreed to in writing by Promus and Doubletree.
 
    Section 1.6.  EFFECT OF THE MERGERS.  As a result of the Doubletree Merger,
the separate corporate existence of Doubletree Sub shall cease and Doubletree
shall continue as the surviving corporation (the "Doubletree Surviving
Corporation"). As a result of the Promus Merger, the separate corporate
existence of Promus Sub shall cease and Promus shall continue as the surviving
corporation (the "Promus Surviving Corporation" and together with the Doubletree
Surviving Corporation, the "Surviving Corporations"). Upon becoming effective,
the Mergers shall have the effects set forth in the DGCL. Without limiting the
generality of the foregoing, and subject thereto, at the Effective Time, (i) all
properties, rights, privileges,
 
                                      A-9
<PAGE>
powers and franchises of Doubletree and Doubletree Sub shall vest in the
Doubletree Surviving Corporation, and all debts, liabilities and duties of
Doubletree and Doubletree Sub shall become the debts, liabilities and duties of
the Doubletree Surviving Corporation and (ii) all properties, rights,
privileges, powers and franchises of Promus and Promus Sub shall vest in the
Promus Surviving Corporation, and all debts, liabilities and duties of Promus
and Promus Sub shall become the debts, liabilities and duties of the Promus
Surviving Corporation.
 
    Section 1.7.  CERTIFICATE OF INCORPORATION AND BYLAWS OF THE SURVIVING
CORPORATIONS.  At the Effective Time, (i) the Certificate of Incorporation and
Bylaws of the Doubletree Surviving Corporation shall be amended to be identical
to the Certificate of Incorporation and Bylaws, respectively, of Doubletree Sub
as in effect immediately prior to the Effective Time (except that the name of
the Doubletree Surviving Corporation shall be Doubletree Inc.), in each case
until duly amended in accordance with applicable law, and (ii) the Certificate
of Incorporation and Bylaws of the Promus Surviving Corporation shall be amended
to be identical to the Certificate of Incorporation and Bylaws, respectively, of
Promus Sub as in effect immediately prior to the Effective Time (except that the
name of the Promus Surviving Corporation shall be Promus Acquisition Corp.), in
each case until duly amended in accordance with applicable law.
 
    Section 1.8.  DIRECTORS AND OFFICERS OF THE SURVIVING CORPORATIONS
 
    (a)  DOUBLETREE SURVIVING CORPORATION.  The directors of Doubletree Sub
immediately prior to the Effective Time shall be the initial directors of the
Doubletree Surviving Corporation, each to hold office in accordance with the
Certificate of Incorporation and Bylaws of the Doubletree Surviving Corporation.
The officers of Doubletree immediately prior to the Effective Time shall be the
initial officers of the Doubletree Surviving Corporation, each to hold office in
accordance with the Certificate of Incorporation and Bylaws of the Doubletree
Surviving Corporation.
 
    (b)  PROMUS SURVIVING CORPORATION.  The directors of Promus Sub immediately
prior to the Effective Time shall be the initial directors of the Promus
Surviving Corporation, each to hold office in accordance with the Certificate of
Incorporation and Bylaws of the Promus Surviving Corporation. The officers of
Promus immediately prior to the Effective Time shall be the initial officers of
the Promus Surviving Corporation, each to hold office in accordance with the
Certificate of Incorporation and Bylaws of the Promus Surviving Corporation.
 
                                  ARTICLE II.
 
                            CONVERSION OF SECURITIES
 
    Section 2.1.  CONVERSION OF DOUBLETREE CAPITAL STOCK.  At the Effective
Time, by virtue of the Doubletree Merger and without any action on the part of
any of the parties hereto or the holders of any shares of Common Stock, par
value $.01 per share, of Doubletree ("Doubletree Common Stock") or common stock
of Doubletree Sub:
 
        (a)  CAPITAL STOCK OF DOUBLETREE SUB.  Each issued and outstanding share
    of the common stock, par value $.01 per share, of Doubletree Sub shall be
    converted into and become one fully paid and nonassessable share of Common
    Stock, par value $.01 per share, of the Doubletree Surviving Corporation.
 
        (b)  CANCELLATION OF TREASURY STOCK AND PROMUS-OWNED STOCK.  All shares
    of Doubletree Common Stock that are owned by Doubletree as treasury stock
    and any shares of Doubletree Common Stock owned by Promus or any
    wholly-owned Subsidiary (as defined in Section 3.1) of Promus shall be
    canceled and retired and shall cease to exist and no stock of Parent or
    other consideration shall be delivered in exchange therefor.
 
        (c)  EXCHANGE RATIO FOR DOUBLETREE COMMON STOCK.  Subject to Section
    2.4(e), each issued and outstanding share of Doubletree Common Stock (other
    than shares to be canceled in accordance with
 
                                      A-10
<PAGE>
    Section 2.1(b)) shall be converted into the right to receive one share (the
    "Doubletree Exchange Ratio") of Common Stock, par value $.01 per share, of
    Parent ("Parent Common Stock"). All such shares of Doubletree Common Stock,
    when so converted, shall no longer be outstanding and shall automatically be
    canceled and retired and shall cease to exist, and each holder of a
    certificate representing any such shares shall cease to have any ownership
    or other rights with respect thereto, except the right to receive the shares
    of Parent Common Stock and an amount equal to certain dividends and other
    distributions described in Section 2.4(c), without interest, upon the
    surrender of such certificate in accordance with Section 2.4.
 
    Section 2.2.  CONVERSION OF PROMUS CAPITAL STOCK.  At the Effective Time, by
virtue of the Promus Merger and without any action on the part of any of the
parties hereto or the holders of any shares of Common Stock, par value $.10 per
share, of Promus ("Promus Common Stock") or common stock of Promus Sub:
 
        (a)  CAPITAL STOCK OF PROMUS SUB.  Each issued and outstanding share of
    the common stock, par value $.01 per share, of Promus Sub shall be converted
    into and become one fully paid and nonassessable share of Common Stock, par
    value $.01 per share, of the Promus Surviving Corporation.
 
        (b)  CANCELLATION OF TREASURY STOCK AND DOUBLETREE-OWNED STOCK.  All
    shares of Promus Common Stock that are owned by Promus as treasury stock and
    any shares of Promus Common Stock owned by Doubletree or any wholly-owned
    Subsidiary (as defined in Section 3.1) of Doubletree shall be canceled and
    retired and shall cease to exist and no stock of Parent or other
    consideration shall be delivered in exchange therefor.
 
        (c)  EXCHANGE RATIO FOR PROMUS COMMON STOCK.  Subject to Section 2.4(e),
    each issued and outstanding share of Promus Common Stock (other than shares
    to be canceled in accordance with Section 2.2(b)) shall be converted into
    the right to receive 0.925 shares (the "Promus Exchange Ratio") of Parent
    Common Stock. All such shares of Promus Common Stock, when so converted,
    shall no longer be outstanding and shall automatically be canceled and
    retired and shall cease to exist, and each holder of a certificate
    representing any such shares shall cease to have any ownership or other
    rights with respect thereto, except the right to receive the shares of
    Parent Common Stock, any cash in lieu of fractional shares of Parent Common
    Stock to be issued or paid in consideration therefor and an amount equal to
    certain dividends and other distributions described in Section 2.4(c), in
    each case upon the surrender of such certificate in accordance with Section
    2.4 and without interest.
 
    Section 2.3.  CANCELLATION OF PARENT STOCK.  At the Effective Time, by
virtue of the Mergers and without any action on the part of any holder of any
capital stock of Doubletree, Promus or Parent, each share of Parent Common Stock
issued and outstanding immediately prior to the Effective Time shall be
surrendered and canceled, and the amount paid by Doubletree and Promus for the
shares of Parent Common Stock held by them shall be returned by Parent to them.
 
    Section 2.4.  EXCHANGE OF CERTIFICATES.  The procedures for exchanging
certificates which prior to the Effective Time represented shares of Doubletree
Common Stock and Promus Common Stock for certificates representing Parent Common
Stock pursuant to the Mergers are as follows:
 
        (a)  EXCHANGE AGENT.  As of the Effective Time, Parent shall deposit
    with a bank or trust company designated by Promus and Doubletree (the
    "Exchange Agent"), for the benefit of the holders of shares of Doubletree
    Common Stock and shares of Promus Common Stock outstanding immediately prior
    to the Effective Time, for exchange in accordance with this Section 2.4,
    through the Exchange Agent, certificates representing the shares of Parent
    Common Stock and, with respect to shares of Promus Common Stock, cash in
    lieu of fractional shares (such shares of Parent Common Stock and cash in
    lieu of fractional shares, together with any dividends or distributions with
    respect thereto, being hereinafter referred to as the "Exchange Fund"),
    issuable pursuant to Sections 2.1 and
 
                                      A-11
<PAGE>
    2.2 in exchange for shares of Doubletree Common Stock and Promus Common
    Stock, respectively, outstanding immediately prior to the Effective Time.
 
        (b)  EXCHANGE PROCEDURES.  As soon as reasonably practicable after the
    Effective Time, the Exchange Agent shall mail to each holder of record of a
    certificate or certificates which immediately prior to the Effective Time
    represented outstanding shares of Doubletree Common Stock or Promus Common
    Stock (collectively, the "Certificates") whose shares were converted
    pursuant to Section 2.1 or Section 2.2 into the right to receive shares of
    Parent Common Stock (i) a letter of transmittal (which shall specify that
    delivery shall be effected, and risk of loss and title to the Certificates
    shall pass, only upon delivery of the Certificates to the Exchange Agent and
    shall be in such form and have such other provisions as Doubletree and
    Promus may reasonably specify) and (ii) instructions for effecting the
    surrender of the Certificates in exchange for certificates representing
    shares of Parent Common Stock (plus cash in lieu of fractional shares, if
    any, of Parent Common Stock as provided below). Upon surrender of a
    Certificate for cancellation to the Exchange Agent or to such other agent or
    agents as may be appointed by Parent, together with such letter of
    transmittal, duly executed, the holder of such Certificate shall be entitled
    to receive in exchange therefor a certificate representing that number of
    whole shares of Parent Common Stock, the amount of any cash payable in lieu
    of fractional shares of Parent Common Stock (with respect to shares of
    Promus Common Stock) and an amount equal to certain dividends and other
    distributions which such holder has the right to receive pursuant to the
    provisions of this Article II, and the Certificate so surrendered shall
    immediately be canceled. In the event of a transfer of ownership of
    Doubletree Common Stock or Promus Common Stock prior to the Effective Time
    which is not registered in the transfer records of Doubletree or Promus,
    respectively, a certificate representing the number of shares of Parent
    Common Stock issuable and any amounts payable in accordance with this
    Agreement may be issued and paid to a transferee if the Certificate
    representing such Doubletree Common Stock or Promus Common Stock is
    presented to the Exchange Agent, accompanied by all documents required to
    evidence and effect such transfer and by evidence that any applicable stock
    transfer taxes have been paid.
 
        (c)  DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES.  No amount in
    respect of dividends or other distributions declared or made after the
    Effective Time with respect to Parent Common Stock with a record date after
    the Effective Time shall be paid to the holder of any unsurrendered
    Certificate with respect to the shares of Parent Common Stock the holder
    thereof is entitled to receive in respect thereof and no cash payment in
    lieu of fractional shares shall be paid to any such holder pursuant to
    subsection (e) below until the holder of record of such Certificate shall
    surrender such Certificate to Parent in accordance herewith. Subject to the
    effect of applicable laws, following surrender of any such Certificate,
    there shall be paid to the record holder of the certificates representing
    whole shares of Parent Common Stock issued in exchange therefor, without
    interest, (i) at the time of such surrender, the amount of any cash payable
    in lieu of a fractional share of Parent Common Stock to which such holder is
    entitled pursuant to subsection (e) below and an amount equal to the amount
    of dividends or other distributions with a record date after the Effective
    Time previously paid with respect to whole shares of Parent Common Stock,
    and (ii) at the appropriate payment date, an amount equal to the amount of
    dividends or other distributions with a record date after the Effective Time
    but prior to surrender and a payment date subsequent to surrender payable
    with respect to whole shares of Parent Common Stock, in each case without
    interest.
 
        (d)  NO FURTHER OWNERSHIP RIGHTS IN DOUBLETREE COMMON STOCK AND PROMUS
    COMMON STOCK.  All shares of Parent Common Stock issued upon the surrender
    for exchange of Certificates in accordance with the terms hereof (including
    any cash paid pursuant to subsection (c) or (e) of this Section 2.4) shall
    be deemed to have been issued in full satisfaction of all rights pertaining
    to the shares of Doubletree Common Stock or Promus Common Stock theretofore
    represented by such Certificates, subject, however, to the applicable
    Surviving Corporation's obligation to pay any dividends or make any other
    distributions with a record date prior to the Effective Time which may have
    been declared
 
                                      A-12
<PAGE>
    or made by Doubletree on such shares of Doubletree Common Stock or by Promus
    on such shares of Promus Common Stock, as the case may be, in accordance
    with the terms of this Agreement (to the extent permitted under Section 5.1)
    prior to the date hereof and which remain unpaid at the Effective Time, and
    from and after the Effective Time there shall be no further registration of
    transfers on the stock transfer books of the Doubletree Surviving
    Corporation or the Promus Surviving Corporation, as the case may be, of the
    shares of Doubletree Common Stock or Promus Common Stock, respectively,
    which were outstanding immediately prior to the Effective Time. If, after
    the Effective Time, Certificates are presented to one of the Surviving
    Corporations or Parent for any reason, such Certificates shall be canceled
    and exchanged as provided in this Section 2.4.
 
        (e)  NO FRACTIONAL SHARES.  No certificate or scrip representing
    fractional shares of Parent Common Stock shall be issued upon the surrender
    for exchange of Certificates representing shares of Promus Common Stock, and
    such fractional share interests will not entitle the owner thereof to vote
    or to any other rights of a stockholder of Parent. Notwithstanding any other
    provision of this Agreement, each holder of shares of Promus Common Stock
    outstanding immediately prior to the Effective Time exchanged pursuant to
    the Promus Merger who would otherwise have been entitled to receive a
    fraction of a share of Parent Common Stock (after taking into account all
    Certificates delivered by such holder) shall receive, in lieu thereof, cash
    (without interest) in an amount equal to such fractional part of a share of
    Parent Common Stock multiplied by the per share sales price of Parent Common
    Stock (as reported on the New York Stock Exchange Composite Tape) on the
    closing of the first day of regular-way trading of Parent Common Stock on
    the New York Stock Exchange (the "NYSE") after the Effective Time.
 
        (f)  TERMINATION OF EXCHANGE FUND.  Any portion of the Exchange Fund
    which remains undistributed to the former stockholders of Doubletree or
    Promus for 180 days after the Effective Time shall be delivered to Parent
    upon demand, and any former stockholder of Doubletree or Promus who has not
    previously complied with this Section 2.4 shall thereafter look only to
    Parent for payment of such former stockholder's claim for Parent Common
    Stock, any cash in lieu of fractional shares of Parent Common Stock and any
    amounts in respect of dividends or distributions with respect to Parent
    Common Stock.
 
        (g)  NO LIABILITY.  None of Doubletree, Promus, Parent or the Exchange
    Agent shall be liable to any holder of shares of Doubletree Common Stock or
    Promus Common Stock, as the case may be, for any shares of Parent Common
    Stock (or cash in lieu of fractional shares of Parent Common Stock or any
    dividends or distributions with respect thereto) delivered to a public
    official pursuant to any applicable abandoned property, escheat or similar
    law.
 
        (h)  WITHHOLDING RIGHTS.  Parent and each of the Surviving Corporations
    shall be entitled to deduct and withhold from the consideration otherwise
    payable pursuant to this Agreement to any holder of Certificates which prior
    to the Effective Time represented shares of Doubletree Common Stock or
    Promus Common Stock such amounts as it is required to deduct and withhold
    with respect to the making of such payment under the Code, or any provision
    of state, local or foreign tax law. To the extent that amounts are so
    withheld by Parent or one of the Surviving Corporations, as the case may be,
    such withheld amounts shall be treated for all purposes of this Agreement as
    having been paid to the holder of the shares of Doubletree Common Stock or
    Promus Common Stock, as the case may be, in respect of which such deduction
    and withholding was made.
 
        (i)  LOST CERTIFICATES.  If any Certificate shall have been lost, stolen
    or destroyed, upon the making of an affidavit of that fact by the person
    claiming such Certificate to be lost, stolen or destroyed and, if required
    by Parent or one of the Surviving Corporations, the posting by such person
    of a bond in such reasonable amount as Parent or such Surviving Corporation
    may direct as indemnity against any claim that may be made against it with
    respect to such Certificate, the Exchange Agent will issue in exchange for
    such lost, stolen or destroyed Certificate the shares of Parent Common Stock
 
                                      A-13
<PAGE>
    and any cash in lieu of fractional shares, and unpaid dividends and
    distributions on shares of Parent Common Stock deliverable in respect
    thereof pursuant to this Agreement.
 
        (j)  AFFILIATES.  Notwithstanding anything herein to the contrary,
    Certificates surrendered for exchange by any Affiliate (as defined in
    Section 5.12) of Doubletree or Promus shall not be exchanged until (i)
    Parent has received an Affiliate Agreement (as defined in Section 5.12) from
    such Affiliate or (ii) until the later of such date as such shares of Parent
    Common Stock are freely tradable without jeopardizing the pooling of
    interests accounting treatment of the Mergers and without violating the
    Securities Act of 1933, as amended (the "Securities Act").
 
                                  ARTICLE III.
 
                  REPRESENTATIONS AND WARRANTIES OF DOUBLETREE
 
    Doubletree represents and warrants to Promus that the statements contained
in this Article III are true and correct except as set forth herein and in the
disclosure schedule delivered by Doubletree to Promus on or before the date of
this Agreement (the "Doubletree Disclosure Schedule"). The Doubletree Disclosure
Schedule shall be arranged in paragraphs corresponding to the numbered and
lettered paragraphs contained in this Article III and the disclosure in any
paragraph shall qualify other paragraphs in this Article III only to the extent
that it is reasonably apparent from a reading of such disclosure that it also
qualifies or applies to such other paragraphs.
 
    Section 3.1.  ORGANIZATION OF DOUBLETREE.  Each of Doubletree and its
Subsidiaries (as defined below) is duly organized, validly existing and in good
standing under the laws of the jurisdiction of its organization, has all
requisite power to own, lease and operate its property and to carry on its
business as now being conducted and as proposed to be conducted, and is duly
qualified to do business and is in good standing as a foreign corporation or
other entity in each jurisdiction in which the failure to be so qualified would
have a material adverse effect on the business, properties, financial condition
or results of operations of Doubletree and its Subsidiaries, taken as a whole
(an "Doubletree Material Adverse Effect"). A true and correct copy of the
Certificate of Incorporation and Bylaws of Doubletree has been delivered to
Promus. Except as set forth in Doubletree SEC Reports (as defined in Section
3.4) filed prior to the date hereof, neither Doubletree nor any of its
Subsidiaries directly or indirectly owns (other than ownership interests in
Doubletree or in one or more of its Subsidiaries) any equity or similar interest
in, or any interest convertible into or exchangeable or exercisable for, any
corporation, partnership, joint venture or other business association or entity,
excluding (i) securities in any publicly traded company held for investment by
Doubletree and comprising less than five percent (5%) of the outstanding stock
of such company and (ii) any investment or series of related investments with a
book value of less than $15 million. As used in this Agreement, the word
"Subsidiary" means, with respect to any party, any corporation or other
organization, whether incorporated or unincorporated, of which (i) such party or
any other Subsidiary of such party is a general partner (excluding partnerships
the general partnership interests of which held by such party or any Subsidiary
of such party do not have a majority of the economic interests in such
partnership) or (ii) at least a majority of the securities or other interests
having by their terms ordinary voting power to elect a majority of the Board of
Directors or others performing similar functions with respect to such
corporation or other organization is directly or indirectly owned or controlled
by such party or by any one or more of its Subsidiaries, or by such party and
one or more of its Subsidiaries.
 
    Section 3.2.  DOUBLETREE CAPITAL STRUCTURE.
 
    (a) The authorized capital stock of Doubletree consists of 100,000,000
shares of Common Stock, $.01 par value, and 5,000,000 shares of Preferred Stock,
$.01 par value ("Doubletree Preferred Stock"). As of the date hereof, (i)
39,688,458 shares of Doubletree Common Stock were issued and outstanding, all of
which are validly issued, fully paid and nonassessable and (ii) no shares of
Doubletree Common Stock were held in the treasury of Doubletree or by
Subsidiaries of Doubletree. The Doubletree Disclosure
 
                                      A-14
<PAGE>
Schedule shows the number of shares of Doubletree Common Stock reserved for
future issuance pursuant to stock options granted and outstanding as of the date
hereof and the plans under which such options were granted (collectively, the
"Doubletree Stock Plans"). As of the date of this Agreement, none of the shares
of Doubletree Preferred Stock is issued and outstanding. There are no
obligations, contingent or otherwise, of Doubletree or any of its Subsidiaries
to repurchase, redeem or otherwise acquire any shares of Doubletree Common Stock
or the capital stock of any Subsidiary or to provide funds to or make any
material investment (in the form of a loan, capital contribution or otherwise)
in any such Subsidiary or any other entity other than guarantees of bank
obligations or indebtedness for borrowed money of Subsidiaries entered into in
the ordinary course of business and other than any obligation the failure of
which to perform or satisfy would not have a Doubletree Material Adverse Effect.
All of the outstanding shares of capital stock or other ownership interests of
each of Doubletree's Subsidiaries are duly authorized, validly issued, fully
paid and nonassessable and all such shares (other than directors' qualifying
shares in the case of foreign Subsidiaries) are owned by Doubletree or another
Subsidiary of Doubletree free and clear of all security interests, liens,
claims, pledges, agreements, limitations in Doubletree's voting rights, charges
or other encumbrances of any nature.
 
    (b) Except as set forth in this Section 3.2 or as reserved for future grants
of options under the Doubletree Stock Plans or the Promus Stock Option Agreement
and except for the preferred stock purchase rights issued and issuable under the
Rights Agreement dated as of September 1, 1997 between Doubletree and Harris
Trust Company of California (the "Doubletree Rights Plan"), options to purchase
an aggregate of 20,000 shares of Doubletree Common Stock, issued on June 30,
1994, to GE Investment Hotel Partners I, Limited Partnership and the Warrants to
purchase an aggregate of 262,753 shares of Doubletree Common Stock, issued on
November 8, 1996, to PT Investments Inc. (the "GEPT Warrant"), (i) there are no
shares of capital stock of any class of Doubletree, or any security exchangeable
into or exercisable for such equity securities, issued, reserved for issuance or
outstanding; (ii) there are no options, warrants, equity securities, calls,
rights, commitments or agreements of any character to which Doubletree or any of
its Subsidiaries is a party or by which it is bound obligating Doubletree or any
of its Subsidiaries to issue, deliver or sell, or cause to be issued, delivered
or sold, additional shares of capital stock or other ownership interests of
Doubletree or any of its Subsidiaries or obligating Doubletree or any of its
Subsidiaries to grant, extend, accelerate the vesting of or enter into any such
option, warrant, equity security, call, right, commitment or agreement; and
(iii) to the best knowledge of Doubletree, there are no voting trusts, proxies
or other voting agreements or understandings with respect to the shares of
capital stock of Doubletree. All shares of Doubletree Common Stock subject to
issuance as specified in this Section 3.2 are duly authorized and, upon issuance
on the terms and conditions specified in the instruments pursuant to which they
are issuable, shall be validly issued, fully paid and nonassessable.
 
    Section 3.3.  AUTHORITY; NO CONFLICT; REQUIRED FILINGS AND CONSENTS.
 
    (a) Doubletree has all requisite corporate power and authority to enter into
this Agreement and the Stock Option Agreements and to consummate the
transactions contemplated by this Agreement and the Stock Option Agreements. The
execution and delivery of this Agreement and the Stock Option Agreements and the
consummation of the transactions contemplated by this Agreement and the Stock
Option Agreements by Doubletree have been duly authorized by all necessary
corporate action on the part of Doubletree, subject only to the approval and
adoption of this Agreement and the Doubletree Merger by Doubletree's
stockholders under the DGCL. This Agreement and the Stock Option Agreements have
been duly executed and delivered by Doubletree and constitute the valid and
binding obligations of Doubletree, enforceable in accordance with their terms,
subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
moratorium and similar laws of general applicability relating to or affecting
creditors' rights and to general equity principles (the "Bankruptcy and Equity
Exception").
 
    (b) The execution and delivery of this Agreement and the Stock Option
Agreements by Doubletree does not, and the consummation of the transactions
contemplated by this Agreement and the Stock Option Agreements will not, (i)
conflict with, or result in any violation or breach of, any provision of the
 
                                      A-15
<PAGE>
Certificate of Incorporation or Bylaws of Doubletree or any of its Subsidiaries,
(ii) result in any violation or breach of, or constitute (with or without notice
or lapse of time, or both) a default (or give rise to a right of termination,
cancellation or acceleration of any obligation or loss of any material benefit)
under, or require a consent or waiver under, any of the terms, conditions or
provisions of any note, bond, mortgage, indenture, lease, contract or other
agreement, instrument or obligation to which Doubletree or any of its
Subsidiaries is a party or by which any of them or any of their properties or
assets may be bound (other than pursuant to the Credit Agreement dated as of
November 8, 1996 by and among Doubletree, Morgan Stanley Senior Funding, Inc.,
The Bank of Nova Scotia and the lenders identified therein) or (iii) conflict
with or violate any permit, concession, franchise, license, judgment, order,
decree, statute, law, ordinance, rule or regulation applicable to Doubletree or
any of its Subsidiaries or any of its or their properties or assets, except in
the case of (ii) and (iii) for any such conflicts, violations, defaults,
terminations, cancellations or accelerations which (x) are not, individually or
in the aggregate, reasonably likely to have a Doubletree Material Adverse Effect
or (y) would not substantially impair or delay the consummation of the
Doubletree Merger.
 
    (c) No consent, approval, order or authorization of, or registration,
declaration or filing with, any court, administrative agency or commission or
other governmental authority or instrumentality ("Governmental Entity") is
required by or with respect to Doubletree or any of its Subsidiaries in
connection with the execution and delivery of this Agreement and the Stock
Option Agreements or the consummation of the transactions contemplated hereby or
thereby, except for (i) the filing of the pre-merger notification report under
the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR
Act"), (ii) the filing of a Certificate of Merger with respect to the Doubletree
Merger with the Delaware Secretary of State, (iii) the filing of the Joint Proxy
Statement/Prospectus (as defined in Section 3.16 below) with the Securities and
Exchange Commission (the "SEC") in accordance with the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), and the Securities Act, (iv) such
consents, approvals, orders, authorizations, permits, filings or registrations
related to, or arising out of, compliance with statutes, rules or regulations
regulating the consumption, sale or serving of alcoholic beverages, (v) such
consents, approvals, orders, authorizations, registrations, declarations and
filings as may be required under applicable state securities laws and the laws
of any foreign country and (vi) such other consents, authorizations, filings,
approvals and registrations which, if not obtained or made, would not (x) be
reasonably likely to have a Doubletree Material Adverse Effect or (y)
substantially impair or delay the consummation of the Doubletree Merger.
 
    Section 3.4.  SEC FILINGS; FINANCIAL STATEMENTS.
 
    (a) Doubletree has filed and made available to Promus all forms, reports and
documents required to be filed by Doubletree with the SEC since January 1, 1996
(collectively, the "Doubletree SEC Reports"). The Doubletree SEC Reports (i) at
the time filed, complied in all material respects with the applicable
requirements of the Securities Act and the Exchange Act, as the case may be, and
(ii) did not at the time they were filed (or if amended or superseded by a
filing prior to the date of this Agreement, then on the date of such filing)
contain any untrue statement of a material fact or omit to state a material fact
required to be stated in such Doubletree SEC Reports or necessary in order to
make the statements in such Doubletree SEC Reports, in the light of the
circumstances under which they were made, not misleading. None of Doubletree's
Subsidiaries is required to file any forms, reports or other documents with the
SEC.
 
    (b) Each of the consolidated financial statements (including, in each case,
any related notes) of Doubletree contained in the Doubletree SEC Reports
complied as to form in all material respects with the applicable published rules
and regulations of the SEC with respect thereto, was prepared in accordance with
generally accepted accounting principles applied on a consistent basis
throughout the periods involved (except as may be indicated in the notes to such
financial statements or, in the case of unaudited statements, as permitted by
Form 10-Q under the Exchange Act) and fairly presented the consolidated
financial position of Doubletree and its Subsidiaries as of the dates and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited interim financial statements
 
                                      A-16
<PAGE>
were or are subject to normal and recurring year-end adjustments which were not
or are not expected to be material in amount. The audited balance sheet of
Doubletree as of December 31, 1996 is referred to herein as the "Doubletree
Balance Sheet."
 
    Section 3.5.  NO UNDISCLOSED LIABILITIES.  Except as disclosed in the
Doubletree SEC Reports filed prior to the date hereof, and except for normal or
recurring liabilities incurred since December 31, 1996 in the ordinary course of
business consistent with past practices, Doubletree and its Subsidiaries do not
have any liabilities, either accrued, contingent or otherwise (whether or not
required to be reflected in financial statements in accordance with generally
accepted accounting principles), and whether due or to become due, which
individually or in the aggregate are reasonably likely to have a Doubletree
Material Adverse Effect.
 
    Section 3.6.  ABSENCE OF CERTAIN CHANGES OF EVENTS.  Except as disclosed in
the Doubletree SEC Reports filed prior to the date hereof, since the date of the
Doubletree Balance Sheet, Doubletree and its Subsidiaries have conducted their
businesses only in the ordinary course and in a manner consistent with past
practice and, since such date, there has not been (i) any event, development,
state of affairs or condition, or series or combination of events, developments,
states of affairs or conditions, which, individually or in the aggregate, has
had or is reasonably likely to have a Doubletree Material Adverse Effect (other
than events, developments, states of affairs or conditions that are the effect
or result of actions taken by Promus or economic factors affecting the economy
as a whole or the industry in which Doubletree competes); (ii) any damage,
destruction or loss (whether or not covered by insurance) with respect to
Doubletree or any of its Subsidiaries which is reasonably likely to have a
Doubletree Material Adverse Effect; (iii) any material change by Doubletree in
its accounting methods, principles or practices to which Promus has not
previously consented in writing; (iv) any revaluation by Doubletree of any of
its assets which is reasonably likely to have a Doubletree Material Adverse
Effect; or (v) any other action or event that would have required the consent of
Promus pursuant to Section 5.1 of this Agreement had such action or event
occurred after the date of this Agreement other than such actions or events
that, individually or in the aggregate, have not had or are not reasonably
likely to have a Doubletree Material Adverse Effect.
 
    Section 3.7.  TAXES.
 
    (a) For the purposes of this Agreement, a "Tax" or, collectively, "Taxes,"
means any and all federal, state, local and foreign taxes, assessments and other
governmental charges, duties, impositions and liabilities, including taxes based
upon or measured by gross receipts, income, profits, sales, use and occupation,
and value added, ad valorem, transfer, gains, franchise, withholding, payroll,
recapture, employment, excise, unemployment insurance, social security, business
license, occupation, business organization, stamp, environmental and property
taxes, together with all interest, penalties and additions imposed with respect
to such amounts. For purposes of this Agreement, "Taxes" also includes any
obligations under any agreements or arrangements with any other person with
respect to Taxes of such other person (including pursuant to Treas. Reg. Section
1.1502-6 or comparable provisions of state, local or foreign tax law) and
including any liability for Taxes of any predecessor entity.
 
    (b) Doubletree and each of its Subsidiaries have (i) filed all federal,
state, local and foreign Tax returns and reports required to be filed by them
prior to the date of this Agreement (taking into account all applicable
extensions), (ii) paid or accrued all Taxes due and payable, and (iii) paid or
accrued all Taxes for which a notice of assessment or collection has been
received (other than amounts being contested in good faith by appropriate
proceedings), except in the case of clauses (i), (ii) or (iii) for any such
filings, payments or accruals that are not reasonably likely, individually or in
the aggregate, to have a Doubletree Material Adverse Effect. Neither the
Internal Revenue Service (the "IRS") nor any other taxing authority has asserted
any claim for Taxes, or to the actual knowledge of the executive officers of
Doubletree, is threatening to assert any claims for Taxes, which claims,
individually or in the aggregate, are reasonably likely to have a Doubletree
Material Adverse Effect. Doubletree and each of its Subsidiaries have withheld
 
                                      A-17
<PAGE>
or collected and paid over to the appropriate governmental authorities (or are
properly holding for such payment) all Taxes required by law to be withheld or
collected, except for amounts that are not reasonably likely, individually or in
the aggregate, to have a Doubletree Material Adverse Effect. Neither Doubletree
nor any of its Subsidiaries has made an election under Section 341(f) of the
Code, except for any such election that shall not have a Doubletree Material
Adverse Effect. There are no liens for Taxes upon the assets of Doubletree or
any of its Subsidiaries (other than liens for Taxes that are not yet due or
delinquent or that are being contested in good faith by appropriate
proceedings), except for liens that are not reasonably likely, individually or
in the aggregate, to have a Doubletree Material Adverse Effect.
 
    (c) Neither Doubletree nor any of its Subsidiaries is or has been a member
of an affiliated group of corporations filing a consolidated federal income tax
return (or a group of corporations filing a consolidated, combined or unitary
income tax return under comparable provisions of state, local or foreign tax
law) for any taxable period beginning on or after the taxable period ending
December 31, 1993, other than a group the common parent of which is or was
Doubletree or any Subsidiary of Doubletree.
 
    (d) Neither Doubletree nor any of its Subsidiaries has any obligation under
any agreement or arrangement with any other person with respect to Taxes of such
other person (including pursuant to Treas. Reg. Section 1.1502-6 or comparable
provisions of state, local or foreign tax law) and including any liability for
Taxes of any predecessor entity, except for obligations that are not reasonably
likely, individually or in the aggregate, to have a Doubletree Material Adverse
Effect.
 
    Section 3.8.  PROPERTIES.
 
    (a) Neither Doubletree nor any of its Subsidiaries is in default under any
leases for real property providing for the occupancy, in each case, of (i) a
hotel or (ii) other facilities in excess of 50,000 square feet (collectively
"Material Lease(s)"), except where the existence of such defaults, individually
or in the aggregate, is not reasonably likely to have a Doubletree Material
Adverse Effect.
 
    (b) With respect to each item of real property that Doubletree or any of its
Subsidiaries owns, except for such matters that, individually or in the
aggregate, are not reasonably likely to have a Doubletree Material Adverse
Effect: (i) Doubletree or its Subsidiary has good and clear record and
marketable title to such property, insurable by a recognized national title
insurance company at standard rates, free and clear of any security interest,
easement, covenant or other restriction, except for recorded easements,
covenants and other restrictions which do not materially impair the current uses
or occupancy of such property; and (ii) the improvements constructed on such
property are in good condition, and all mechanical and utility systems servicing
such improvements are in good condition, free in each case of material defects.
 
    Section 3.9.  INTELLECTUAL PROPERTY  Doubletree owns, or is licensed or
otherwise possesses legally enforceable rights to use, all trademarks, trade
names, service marks, copyrights, and any applications for such trademarks,
trade names, service marks and copyrights, know-how, computer software programs
or applications and tangible or intangible proprietary information or material
that are necessary to conduct the business of Doubletree as currently conducted,
subject to such exceptions that, individually and in the aggregate, would not be
reasonably likely to have a Doubletree Material Adverse Effect. Doubletree has
no knowledge of any assertion or claim challenging the validity of any of such
intellectual property.
 
    Section 3.10.  AGREEMENTS, CONTRACTS AND COMMITMENTS.
 
    (a) Doubletree has not breached, or received in writing any claim or notice
that it has breached, any of the terms or conditions of any material agreement,
contract or commitment filed as an exhibit to the Doubletree SEC Reports
("Doubletree Material Contracts") in such a manner as, individually or in the
aggregate, are reasonably likely to have a Doubletree Material Adverse Effect.
Each Doubletree Material Contract that has not expired by its terms is in full
force and effect.
 
    (b) Without limiting Section 3.10(a), each of the management contracts and
franchise agreements to which Doubletree is a party and each of Doubletree's
Material Leases (i) is valid and binding in
 
                                      A-18
<PAGE>
accordance with its terms and is in full force and effect, (ii) neither
Doubletree nor any of its Subsidiaries is in default in any material respect
thereof, nor does any condition exist that with notice or lapses of time or both
would constitute a material default thereunder, and (iii) no party has given any
written or (to the knowledge of Doubletree) oral notice of termination or
cancellation thereof or that such party intends to assert a breach thereof, or
seek to terminate or cancel, any such agreement, contract or lease, in each case
as a result of the transactions contemplated hereby, subject to such exceptions
that, individually and in the aggregate, would not be reasonably likely to have
a Doubletree Material Adverse Effect.
 
    Section 3.11.  LITIGATION.  Except as described in the Doubletree SEC
Reports filed prior to the date hereof, there is no action, suit or proceeding,
claim, arbitration or investigation against Doubletree pending or as to which
Doubletree has received any written notice of assertion, which, individually or
in the aggregate, is reasonably likely to have a Doubletree Material Adverse
Effect or a material adverse effect on the ability of Doubletree to consummate
the transactions contemplated by this Agreement.
 
    Section 3.12.  ENVIRONMENTAL MATTERS.
 
    (a) To the knowledge of Doubletree and except as disclosed in the Doubletree
SEC Reports filed prior to the date hereof and except for such matters that,
individually or in the aggregate, are not reasonably likely to have a Doubletree
Material Adverse Effect: (i) Doubletree and its Subsidiaries have complied with
all applicable Environmental Laws (as defined in Section 3.12(b)); (ii) the
properties currently owned or operated by Doubletree and its Subsidiaries
(including soils, groundwater, surface water, buildings or other structures) are
not contaminated with any Hazardous Substances (as defined in Section 3.12(c));
(iii) the properties formerly owned or operated by Doubletree or any of its
Subsidiaries were not contaminated with Hazardous Substances during the period
of ownership or operation by Doubletree or any of its Subsidiaries; (iv) neither
Doubletree nor its Subsidiaries are subject to liability for any Hazardous
Substance disposal or contamination on any third party property; (v) neither
Doubletree nor any of its Subsidiaries has been associated with any release or
threat of release of any Hazardous Substance; (vi) neither Doubletree nor any of
its Subsidiaries has received any notice, demand, letter, claim or request for
information alleging that Doubletree or any of its Subsidiaries may be in
violation of or liable under any Environmental Law; (vii) neither Doubletree nor
any of its Subsidiaries is subject to any orders, decrees, injunctions or other
arrangements with any Governmental Entity or is subject to any indemnity or
other agreement with any third party relating to liability under any
Environmental Law or relating to Hazardous Substances; and (viii) there are no
circumstances or conditions involving Doubletree or any of its Subsidiaries that
could reasonably be expected to result in any claims, liability, investigations,
costs or restrictions on the ownership, use or transfer of any property of
Doubletree or any of its Subsidiaries pursuant to any Environmental Law.
 
    (b) As used herein, the term "Environmental Law" means any federal, state,
local or foreign law, regulation, order, decree, permit, authorization, opinion,
common law or agency requirement relating to: (A) the protection, investigation
or restoration of the environment, health and safety, or natural resources, (B)
the handling, use, presence, disposal, release or threatened release of any
Hazardous Substance or (C) noise, odor, wetlands, pollution, contamination or
any injury or threat of injury to persons or property.
 
    (c) As used herein, the term "Hazardous Substance" means any substance that
is: (A) listed, classified or regulated pursuant to any Environmental Law; (B)
any petroleum product or by-product, asbestos-containing material,
lead-containing paint or plumbing, polychlorinated biphenyls, radioactive
materials or radon; or (C) any other substance which is the subject of
regulatory action by any Governmental Entity pursuant to any Environmental Law.
 
    Section 3.13.  EMPLOYEE BENEFIT PLANS.
 
    (a) For purposes of this Agreement, the "Doubletree Employee Plans" shall
mean all employee benefit plans (as defined in Section 3(3) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA")) and all bonus,
stock option, stock purchase, incentive, deferred compensation,
 
                                      A-19
<PAGE>
supplemental retirement, severance and other similar employee benefit plans, and
all unexpired severance agreements, written or otherwise, for the benefit of, or
relating to, any current or former employee of Doubletree or any trade or
business (whether or not incorporated) which is under common control with
Doubletree within the meaning of Section 414 of the Code (an "ERISA Affiliate"),
or any Subsidiary of Doubletree (together, the "Doubletree Employee Plans").
Doubletree has listed in Section 3.13 of the Doubletree Disclosure Schedule all
Doubletree Employee Plans other plans that are "employee welfare benefit plans"
within the meaning of Section 3(1) of ERISA.
 
    (b) With respect to each Doubletree Employee Plan, Doubletree has made
available to Promus, a true and correct copy of (i) the most recent annual
report (Form 5500) filed with the IRS, (ii) such Doubletree Employee Plan and
all amendments thereto, (iii) each trust agreement and group annuity contract,
if any, and all amendments thereto relating to such Doubletree Employee Plan and
(iv) the most recent actuarial report or valuation relating to a Doubletree
Employee Plan subject to Title IV of ERISA.
 
    (c) With respect to the Doubletree Employee Plans, individually and in the
aggregate, no event has occurred, and to the knowledge of Doubletree, there
exists no condition or set of circumstances in connection with which Doubletree
could be subject to any liability that is reasonably likely to have a Doubletree
Material Adverse Effect under ERISA, the Code or any other applicable law.
 
    (d) With respect to the Doubletree Employee Plans, individually and in the
aggregate, there are no funded benefit obligations for which contributions have
not been made or properly accrued and there are no unfunded benefit obligations
which have not been accounted for by reserves, or otherwise properly footnoted
in accordance with generally accepted accounting principles, on the financial
statements of Doubletree, except for obligations which, individually or in the
aggregate, are not reasonably likely to have a Doubletree Material Adverse
Effect.
 
    (e) Except as disclosed in the Doubletree SEC Reports filed prior to the
date of this Agreement, and except as provided for in this Agreement, neither
Doubletree nor any of its Subsidiaries is a party to any oral or written (i)
agreement with any officer or other key employee of Doubletree or any of its
Subsidiaries, the benefits of which are contingent, or the terms of which are
materially altered, upon the occurrence of a transaction involving Doubletree of
the nature contemplated by this Agreement, (ii) agreement with any officer of
Doubletree providing any term of employment or compensation guarantee extending
for a period longer than one year from the date hereof and for the payment of
compensation in excess of $100,000 per annum, or (iii) agreement or plan,
including any stock option plan, stock appreciation right plan, restricted stock
plan or stock purchase plan, any of the benefits of which will be increased, the
vesting of the benefits of which will be accelerated or the funding of benefits
of which will be required, by the occurrence of any of the transactions
contemplated by this Agreement or the value of any of the benefits of which will
be calculated on the basis of any of the transactions contemplated by this
Agreement.
 
    Section 3.14.  COMPLIANCE WITH LAWS.  Doubletree has complied with, is not
in violation of, and has not received any notices of violation with respect to,
any federal, state or local statute, law or regulation with respect to the
conduct of its business, or the ownership or operation of its business, except
for failures to comply or violations which, individually or in the aggregate,
have not had and are not reasonably likely to have a Doubletree Material Adverse
Effect.
 
    Section 3.15.  ACCOUNTING AND TAX MATTERS.
 
    (a) To the best knowledge of Doubletree, after consulting with its
independent auditors with respect to clause (i) below and its tax advisors with
respect to clause (ii) below, neither Doubletree nor any of its Affiliates (as
defined in Section 5.12) has taken or agreed to take any action which would (i)
prevent Parent from accounting for the business combination to be effected by
the Mergers as a pooling of interests or (ii) prevent the Doubletree Merger from
qualifying as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Promus Merger, as a transfer of property to Parent
 
                                      A-20
<PAGE>
by holders of Doubletree Common Stock described in Section 351 of the Code.
Except as contemplated by the Doubletree Option Agreement, neither Doubletree
nor any of its Subsidiaries owns any shares of Promus Common Stock or other
securities convertible into shares of Promus Common Stock (exclusive of any
shares owned by Doubletree's employee benefit plans).
 
    (b) To the best knowledge of Doubletree, the stockholders of Doubletree as a
group have no present plan, intention or arrangement to sell or otherwise
dispose of such number of the shares of Parent Common Stock received in the
Doubletree Merger as would reduce their ownership in Parent Common Stock to a
number of shares having a value, as of the date of the Doubletree Merger, of
less than eighty percent (80%) of the value of all the formerly outstanding
stock of Doubletree as of the same date.
 
    Section 3.16.  REGISTRATION STATEMENT; JOINT PROXY
STATEMENT/PROSPECTUS.  The information to be supplied by Doubletree for
inclusion in the registration statement on Form S-4 pursuant to which shares of
Parent Common Stock issued in the Mergers will be registered under the
Securities Act (the "Registration Statement"), shall not at the time the
Registration Statement is declared effective by the SEC contain any untrue
statement of a material fact or omit to state any material fact required to be
stated in the Registration Statement or necessary in order to make the
statements in the Registration Statement, in light of the circumstances under
which they were made, not misleading. The information supplied by Doubletree for
inclusion in the joint proxy statement/prospectus to be sent to the stockholders
of Promus and Doubletree in connection with the meeting of Doubletree's
stockholders (the "Doubletree Stockholders' Meeting") and the meeting of
Promus's stockholders (the "Promus Stockholders' Meeting") to consider this
Agreement and the Mergers (the "Joint Proxy Statement/Prospectus") shall not, on
the date the Joint Proxy Statement/Prospectus is first mailed to stockholders of
Doubletree or Promus, at the time of the Doubletree Stockholders' Meeting and
the Promus Stockholders' Meeting and at the Effective Time, contain any
statement which, at such time and in light of the circumstances under which it
shall be made, is false or misleading with respect to any material fact, omit to
state any material fact necessary in order to make the statements made in the
Joint Proxy Statement/Prospectus not false or misleading, or omit to state any
material fact necessary to correct any statement in any earlier communication
with respect to the solicitation of proxies for the Doubletree Stockholders'
Meeting or the Promus Stockholders' Meeting which has become false or
misleading. If at any time prior to the Effective Time any event relating to
Doubletree or any of its Affiliates, officers or directors should be discovered
by Doubletree which should be set forth in an amendment to the Registration
Statement or a supplement to the Joint Proxy Statement/ Prospectus, Doubletree
shall promptly inform Promus.
 
    Section 3.17.  LABOR MATTERS.  Except as disclosed in the Doubletree SEC
Reports filed prior to the date hereof, neither Doubletree nor any of its
Subsidiaries is a party to or otherwise bound by any collective bargaining
agreement, contract or other agreement or understanding with a labor union or
labor organization, nor, as of the date hereof, is Doubletree or any of its
Subsidiaries the subject of any material proceeding asserting that Doubletree or
any of its Subsidiaries has committed an unfair labor practice or is seeking to
compel it to bargain with any labor union or labor organization nor, as of the
date of this Agreement, is there pending or, to the knowledge of the executive
officers of Doubletree, threatened, any material labor strike, dispute, walkout,
work stoppage, slow-down or lockout involving Doubletree or any of its
Subsidiaries.
 
    Section 3.18.  INSURANCE.  All material fire and casualty, general
liability, business interruption, product liability, and sprinkler and water
damage insurance policies maintained by Doubletree or any of its Subsidiaries
are with reputable insurance carriers, provide full and adequate coverage for
all normal risks incident to the business of Doubletree and its Subsidiaries and
their respective properties and assets, and are in character and amount at least
equivalent to that carried by persons engaged in similar businesses and subject
to the same or similar perils or hazards, except for any such failures to
maintain insurance policies that, individually or in the aggregate, are not
reasonably likely to have a Doubletree Material Adverse Effect.
 
                                      A-21
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    Section 3.19.  DOUBLETREE LONG-RANGE PLANS.  Doubletree has provided to
Promus copies of Doubletree's most recent long-range plans prepared in draft
form by Doubletree's management and Doubletree has not adopted any other
long-range plans since January 1, 1997.
 
    Section 3.20.  OPINION OF FINANCIAL ADVISOR.  The financial advisor of
Doubletree, Morgan Stanley & Co. Incorporated, has delivered to Doubletree an
opinion dated the date of this Agreement to the effect that the Doubletree
Exchange Ratio is fair to the holders of Doubletree Common Stock from a
financial point of view.
 
    Section 3.21.  NO EXISTING DISCUSSIONS.  As of the date hereof, Doubletree
is not engaged, directly or indirectly, in any discussions or negotiations with
any other party with respect to an Acquisition Proposal (as defined in Section
5.3).
 
    Section 3.22.  SECTION 203 OF THE DGCL NOT APPLICABLE.  The restrictions
contained in Section 203 of the DGCL applicable to a "business combination" (as
defined in DGCL Section 203) will not apply to the authorization, execution,
delivery and performance of this Agreement or the Stock Option Agreements by
Doubletree or the Stockholder Support Agreement by the parties thereto or the
consummation of the Doubletree Merger by Doubletree. No other "fair price,"
"moratorium," "control share acquisition" or other similar anti-takeover statute
or regulation is applicable to Doubletree or (by reason of Doubletree's
participation therein) the Doubletree Merger or the other transactions
contemplated by this Agreement.
 
    Section 3.23.  DOUBLETREE RIGHTS PLAN.  Under the terms of the Doubletree
Rights Plan, neither the execution of this Agreement, the Promus Stock Option
Agreement, the Stockholder Support Agreement, nor the transactions contemplated
hereby or thereby, will cause a Distribution Date to occur or cause the rights
issued pursuant to the Doubletree Rights Plan to become exercisable, and all
such rights shall become non-exercisable at the Effective Time.
 
                                  ARTICLE IV.
 
                    REPRESENTATIONS AND WARRANTIES OF PROMUS
 
    Promus represents and warrants to Doubletree that the statements contained
in this Article IV are true and correct, except as set forth in the disclosure
schedule delivered by Promus to Doubletree on or before the date of this
Agreement (the "Promus Disclosure Schedule"). The Promus Disclosure Schedule
shall be arranged in paragraphs corresponding to the numbered and lettered
paragraphs contained in this Article IV and the disclosure in any paragraph
shall qualify other paragraphs in this Article IV only to the extent that it is
reasonably apparent from a reading of such document that it also qualifies or
applies to such other paragraphs.
 
    Section 4.1.  ORGANIZATION OF PROMUS.  Each of Promus and its Subsidiaries
is duly organized, validly existing and in good standing under the laws of the
jurisdiction of its organization, has all requisite power to own, lease and
operate its property and to carry on its business as now being conducted and as
proposed to be conducted, and is duly qualified to do business and is in good
standing as a foreign corporation or other entity in each jurisdiction in which
the failure to be so qualified would have a material adverse effect on the
business, properties, financial condition or results of operations of Promus and
its Subsidiaries, taken as a whole (a "Promus Material Adverse Effect"). A true
and correct copy of the Certificate of Incorporation and Bylaws of Promus has
been delivered to Doubletree. Except as set forth in the Promus SEC Reports (as
defined in Section 4.4) filed prior to the date hereof, neither Promus nor any
of its Subsidiaries directly or indirectly owns (other than ownership interests
in Promus or in one or more of its Subsidiaries) any equity or similar interest
in, or any interest convertible into or exchangeable or exercisable for, any
corporation, partnership, joint venture or other business association or entity,
excluding (i) securities in any publicly traded company held for investment by
Promus and comprising less than five percent (5%) of the outstanding stock of
such company and (ii) any investment or series of related investments with a
book value of less than $15 million.
 
                                      A-22
<PAGE>
    Section 4.2.  PROMUS CAPITAL STRUCTURE.
 
    (a) The authorized capital stock of Promus consists of 360,000,000 shares of
Common Stock, $.10 par value, 150,000 shares of Preferred Stock, $100.00 par
value ("Promus Preferred Stock") and 5,000,000 shares of Special Stock, par
value $1.12 1/2 ("Promus Special Stock"). As of the date hereof, (i) 49,896,911
shares of Promus Common Stock were issued and outstanding, all of which are
validly issued, fully paid and nonassessable, and (ii) 1,580,101 additional
shares of Promus Common Stock were held in the treasury of Promus or by
Subsidiaries of Promus. The Promus Disclosure Schedule shows the number of
shares of Promus Common Stock reserved for future issuance pursuant to stock
options granted and outstanding as of the date hereof and the plans under which
such options were granted (collectively, the "Promus Stock Plans"). As of the
date of this Agreement, none of the shares of Promus Preferred Stock or Promus
Special Stock are issued and outstanding. There are no obligations, contingent
or otherwise, of Promus or any of its Subsidiaries to repurchase, redeem or
otherwise acquire any shares of Promus Common Stock or the capital stock of any
Subsidiary or to provide funds to or make any material investment (in the form
of a loan, capital contribution or otherwise) in any such Subsidiary or any
other entity other than guarantees of bank obligations or indebtedness for
borrowed money of Subsidiaries entered into in the ordinary course of business
and other than any obligation the failure of which to perform or satisfy would
not have a Promus Material Adverse Effect. All of the outstanding shares of
capital stock or other ownership interests of each of Promus's Subsidiaries are
duly authorized, validly issued, fully paid and nonassessable and all such
shares (other than directors' qualifying shares in the case of foreign
Subsidiaries) are owned by Promus or another Subsidiary of Promus free and clear
of all security interests, liens, claims, pledges, agreements, limitations in
Promus's voting rights, charges or other encumbrances of any nature.
 
    (b) Except as set forth in this Section 4.2 or as reserved for future grants
of options under the Promus Stock Plans or the Doubletree Stock Option
Agreement, and except for the preferred stock purchase rights issued and
issuable under the Rights Agreement dated as of June 30, 1995 between Promus and
Continental Stock Transfer & Trust Company (the "Promus Rights Plan"), (i) there
are no shares of capital stock of any class of Promus, or any security
exchangeable into or exercisable for such equity securities, issued, reserved
for issuance or outstanding; (ii) there are no options, warrants, equity
securities, calls, rights, commitments or agreements of any character to which
Promus or any of its Subsidiaries is a party or by which it is bound obligating
Promus or any of its Subsidiaries to issue, deliver or sell, or cause to be
issued, delivered or sold, additional shares of capital stock or other ownership
interests of Promus or any of its Subsidiaries or obligating Promus or any of
its Subsidiaries to grant, extend, accelerate the vesting of or enter into any
such option, warrant, equity security, call, right, commitment or agreement; and
(iii) to the best knowledge of Promus, there are no voting trusts, proxies or
other voting agreements or understandings with respect to the shares of capital
stock of Promus. All shares of Promus Common Stock subject to issuance as
specified in this Section 4.2 are duly authorized and, upon issuance on the
terms and conditions specified in the instruments pursuant to which they are
issuable, shall be validly issued, fully paid and nonassessable.
 
    Section 4.3.  AUTHORITY; NO CONFLICT; REQUIRED FILINGS AND CONSENTS.
 
    (a) Promus has all requisite corporate power and authority to enter into
this Agreement, the Stock Option Agreements and the Stockholder Support
Agreement and to consummate the transactions contemplated by this Agreement, the
Stock Option Agreements and the Stockholder Support Agreement. The execution and
delivery of this Agreement, the Stock Option Agreements and the Stockholder
Support Agreement and the consummation of the transactions contemplated by this
Agreement, the Stock Option Agreements and the Stockholder Support Agreement by
Promus have been duly authorized by all necessary corporate action on the part
of Promus, subject only to the approval and adoption of this Agreement and the
Promus Merger by Promus's stockholders under the DGCL. This Agreement, the Stock
Option Agreements and the Stockholder Support Agreement have been duly executed
and delivered by Promus and constitute the valid and binding obligations of
Promus, enforceable in accordance with their terms, subject to the Bankruptcy
and Equity Exception.
 
                                      A-23
<PAGE>
    (b) The execution and delivery of this Agreement, the Stock Option
Agreements and the Stockholder Support Agreement by Promus does not, and the
consummation of the transactions contemplated by this Agreement, the Stock
Option Agreements and the Stockholder Support Agreement will not, (i) conflict
with, or result in any violation or breach of, any provision of the Certificate
of Incorporation or Bylaws of Promus or any of its Subsidiaries, (ii) result in
any violation or breach of, or constitute (with or without notice or lapse of
time, or both) a default (or give rise to a right of termination, cancellation
or acceleration of any obligation or loss of any material benefit) under, or
require a consent or waiver under, any of the terms, conditions or provisions of
any note, bond, mortgage, indenture, lease, contract or other agreement,
instrument or obligation to which Promus or any of its Subsidiaries is a party
or by which any of them or any of their properties or assets may be bound (other
than pursuant to the Tranche A Credit Agreement or the Tranche B Credit
Agreement, each dated as of June 7, 1995, as amended, by and among Promus and
certain of its subsidiaries and NationsBank, N.A. (Carolinas)) or (iii) conflict
with or violate any permit, concession, franchise, license, judgment, order,
decree, statute, law, ordinance, rule or regulation applicable to Promus or any
of its Subsidiaries or any of its or their properties or assets, except in the
case of (ii) and (iii) for any such conflicts, violations, defaults,
terminations, cancellations or accelerations which (x) are not, individually or
in the aggregate, reasonably likely to have a Promus Material Adverse Effect or
(y) would not substantially impair or delay the consummation of the Promus
Merger.
 
    (c) No consent, approval, order or authorization of, or registration,
declaration or filing with, any Governmental Entity is required by or with
respect to Promus or any of its Subsidiaries in connection with the execution
and delivery of this Agreement, the Stock Option Agreements and the Stockholder
Support Agreement or the consummation of the transactions contemplated hereby or
thereby, except for (i) the filing of the pre-merger notification report under
the HSR Act, (ii) the filing of a Certificate of Merger with respect to the
Promus Merger with the Delaware Secretary of State, (iii) the filing of the
Joint Proxy Statement/Prospectus with the SEC in accordance with the Exchange
Act and the Securities Act, (iv) such consents, approvals, orders,
authorizations, permits, filings, or registrations related to, or arising out
of, compliance with statutes, rules or regulations regulating the consumption,
sale or serving of alcoholic beverages, (v) such consents, approvals, orders,
authorizations, registrations, declarations and filings as may be required under
applicable state securities laws and the laws of any foreign country and (vi)
such other consents, authorizations, filings, approvals and registrations which,
if not obtained or made, would not (x) be reasonably likely to have a Promus
Material Adverse Effect or (y) substantially impair or delay the consummation of
the Promus Merger.
 
    Section 4.4.  SEC FILINGS; FINANCIAL STATEMENTS.
 
    (a) Promus has filed and made available to Doubletree all forms, reports and
documents required to be filed by Promus with the SEC since January 1, 1996
(collectively, the "Promus SEC Reports"). The Promus SEC Reports (i) at the time
filed, complied in all material respects with the applicable requirements of the
Securities Act and the Exchange Act, as the case may be, and (ii) did not at the
time they were filed (or if amended or superseded by a filing prior to the date
of this Agreement, then on the date of such filing) contain any untrue statement
of a material fact or omit to state a material fact required to be stated in
such Promus SEC Reports or necessary in order to make the statements in such
Promus SEC Reports, in the light of the circumstances under which they were
make, not misleading. Other than Promus Hotels, Inc., none of Promus's
Subsidiaries is required to file any forms, reports or other documents with the
SEC.
 
    (b) Each of the consolidated financial statements (including, in each case,
any related notes) of Promus contained in the Promus SEC Reports complied as to
form in all material respects with the applicable published rules and
regulations of the SEC with respect thereto, was prepared in accordance with
generally accepted accounting principles applied on a consistent basis
throughout the periods involved (except as may be indicated in the notes to such
financial statements or, in the case of unaudited statements, as permitted by
Form 10-Q under the Exchange Act) and fairly presented the consolidated
 
                                      A-24
<PAGE>
financial position of Promus and its Subsidiaries as of the dates and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited interim financial statements were or are subject to
normal and recurring year-end adjustments which were not or are not expected to
be material in amount. The audited balance sheet of Promus as of December 31,
1996 is referred to herein as the "Promus Balance Sheet."
 
    Section 4.5.  NO UNDISCLOSED LIABILITIES.  Except as disclosed in the Promus
SEC Reports filed prior to the date hereof, and except for normal or recurring
liabilities incurred since December 31, 1996 in the ordinary course of business
consistent with past practices, Promus and its Subsidiaries do not have any
liabilities, either accrued, contingent or otherwise (whether or not required to
be reflected in financial statements in accordance with generally accepted
accounting principles), and whether due or to become due, which individually or
in the aggregate, are reasonably likely to have a Promus Material Adverse
Effect.
 
    Section 4.6.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed in
the Promus SEC Reports filed prior to the date hereof, since the date of the
Promus Balance Sheet, Promus and its Subsidiaries have conducted their
businesses only in the ordinary course and in a manner consistent with past
practice and, since such date, there has not been (i) any event, development,
state of affairs or condition, or series or combination of events, developments,
states of affairs or conditions, which, individually or in the aggregate, has
had or which is reasonably likely to have a Promus Material Adverse Effect
(other than events, developments, states of affairs or conditions that are the
effect or result of actions taken by Doubletree or economic factors affecting
the economy as a whole or the industry in which Promus competes); (ii) any
damage, destruction or loss (whether or not covered by insurance) with respect
to Promus or any of its Subsidiaries which is reasonably likely to have a Promus
Material Adverse Effect; (iii) any material change by Promus in its accounting
methods, principles or practices to which Doubletree has not previously
consented in writing; (iv) any revaluation by Promus of any of its assets which
is reasonably likely to have a Promus Material Adverse Effect; or (v) any other
action or event that would have required the consent of Doubletree pursuant to
Section 5.1 of this Agreement had such action or event occurred after the date
of this Agreement, other than such actions or events that, individually or in
the aggregate, have not had or are not reasonably likely to have a Promus
Material Adverse Effect.
 
    Section 4.7.  TAXES.
 
    (a) Promus and each of its Subsidiaries have (i) filed all federal, state,
local and foreign Tax returns and reports required to be filed by them prior to
the date of this Agreement (taking into account all applicable extensions), (ii)
paid or accrued all Taxes due and payable, and (iii) paid or accrued all Taxes
for which a notice of assessment or collection has been received (other than
amounts being contested in good faith by appropriate proceedings), except in the
case of clauses (i), (ii) or (iii) for any such filings, payments or accruals
that are not reasonably likely, individually or in the aggregate, to have a
Promus Material Adverse Effect. Neither the IRS nor any other taxing authority
has asserted any claim for Taxes, or to the actual knowledge of the executive
officers of Promus, is threatening to assert any claims for Taxes, which claims,
individually or in the aggregate, are reasonably likely to have a Promus
Material Adverse Effect. Promus and each of its Subsidiaries have withheld or
collected and paid over to the appropriate governmental authorities (or are
properly holding for such payment) all Taxes required by law to be withheld or
collected, except for amounts that are not reasonably likely, individually or in
the aggregate, to have a Promus Material Adverse Effect. Neither Promus nor any
of its Subsidiaries has made an election under Section 341(f) of the Code,
except for any such election that shall not have a Promus Material Adverse
Effect. There are no liens for Taxes upon the assets of Promus or any of its
Subsidiaries (other than liens for Taxes that are not yet due or delinquent or
that are being contested in good faith by appropriate proceedings), except for
liens that are not reasonably likely, individually or in the aggregate, to have
a Promus Material Adverse Effect.
 
                                      A-25
<PAGE>
    (b) Neither Promus nor any of its Subsidiaries is or has been a member of an
affiliated group of corporations filing a consolidated federal income tax return
(or a group of corporations filing a consolidated, combined or unitary income
tax return under comparable provisions of state, local or foreign tax law) for
any taxable period beginning on or after February 7, 1990, other than a group
the common parent of which is or was The Promus Companies Incorporated, Promus
or any Subsidiary of Promus.
 
    (c) Neither Promus nor any of its Subsidiaries has any obligation under any
agreement or arrangement with any other person with respect to Taxes of such
other person (including pursuant to Treas. Reg. Section 1.1502-6 or comparable
provisions of state, local or foreign tax law) and including any liability for
Taxes of any predecessor entity, except for obligations that are not reasonably
likely, individually or in the aggregate, to have an Promus Material Adverse
Effect.
 
    Section 4.8.  PROPERTIES.
 
    (a) Neither Promus nor any of its Subsidiaries is in default under any
Material Leases, except where the existence of such defaults, individually or in
the aggregate, is not reasonably likely to have a Promus Material Adverse
Effect.
 
    (b) With respect to each item of real property that Promus or any of its
Subsidiaries owns, except for such matters that, individually or in the
aggregate, are not reasonably likely to have a Promus Material Adverse Effect:
(i) Promus or its Subsidiary has good and clear record and marketable title to
such property, insurable by a recognized national title insurance company at
standard rates, free and clear of any security interest, easement, covenant or
other restriction, except for recorded easements, covenants and other
restrictions which do not materially impair the current uses or occupancy of
such property; and (ii) the improvements constructed on such property are in
good condition, and all mechanical and utility systems servicing such
improvements are in good condition, free in each case of material defects.
 
    Section 4.9.  INTELLECTUAL PROPERTY.  Promus owns, or is licensed or
otherwise possesses legally enforceable rights to use, all trademarks, trade
names, service marks, copyrights, and any applications for such trademarks,
trade names, service marks and copyrights, know-how, computer software programs
or applications, and tangible or intangible proprietary information or material
that are necessary to conduct the business of Promus as currently conducted,
subject to such exceptions that, individually and in the aggregate, would not be
reasonably likely to have a Promus Material Adverse Effect. Promus has no
knowledge of any assertion or claim challenging the validity of any of such
intellectual property.
 
    Section 4.10.  AGREEMENTS, CONTRACTS AND COMMITMENTS.
 
    (a) Promus has not breached, or received in writing any claim or notice that
it has breached, any of the terms or conditions of any material agreement,
contract or commitment filed as an exhibit to the Promus SEC Reports ("Promus
Material Contracts") in such a manner as, individually or in the aggregate, are
reasonably likely to have a Promus Material Adverse Effect. Each Promus Material
Contract that has not expired by its terms is in full force and effect.
 
    (b) Without limiting Section 4.10(a), each of the management contracts and
franchise agreements to which Promus is a party and each of Promus's Material
Leases (i) is valid and binding in accordance with its terms and is in full
force and effect, (ii) neither Promus nor any of its Subsidiaries is in default
in any material respect thereof, nor does any condition exist that with notice
or lapses of time or both would constitute a material default thereunder, and
(iii) no party has given any written or (to the knowledge of Promus) oral notice
of termination or cancellation thereof or that such party intends to assert a
breach thereof, or seek to terminate or cancel, any such agreement, contract or
lease, in each case as a result of the transactions contemplated hereby, subject
to such exceptions that, individually and in the aggregate, would not be
reasonably likely to have a Promus Material Adverse Effect.
 
    Section 4.11.  LITIGATION.  Except as described in the Promus SEC Reports
filed prior to the date hereof, there is no action, suit or proceeding, claim,
arbitration or investigation against Promus pending or
 
                                      A-26
<PAGE>
as to which Promus has received any written notice of assertion, which,
individually or in the aggregate, is reasonably likely to have a Promus Material
Adverse Effect or a material adverse effect on the ability of Promus to
consummate the transactions contemplated by this Agreement.
 
    Section 4.12.  ENVIRONMENTAL MATTERS.  To the knowledge of Promus and except
as disclosed in the Promus SEC Reports filed prior to the date hereof and except
for such matters that, individually or in the aggregate, are not reasonably
likely to have a Promus Material Adverse Effect: (i) Promus and its Subsidiaries
have complied with all applicable Environmental Laws; (ii) the properties
currently owned or operated by Promus and its Subsidiaries (including soils,
groundwater, surface water, buildings or other structures) are not contaminated
with any Hazardous Substances; (iii) the properties formerly owned or operated
by Promus or any of its Subsidiaries were not contaminated with Hazardous
Substances during the period of ownership or operation by Promus or any of its
Subsidiaries; (iv) neither Promus nor its Subsidiaries are subject to liability
for any Hazardous Substance disposal or contamination on any third party
property; (v) neither Promus nor any of its Subsidiaries has been associated
with any release or threat of release of any Hazardous Substance; (vi) neither
Promus nor any of its Subsidiaries has received any notice, demand, letter,
claim or request for information alleging that Promus or any of its Subsidiaries
may be in violation of or liable under any Environmental Law; (vii) neither
Promus nor any of its Subsidiaries is subject to any orders, decrees,
injunctions or other arrangements with any Governmental Entity or is subject to
any indemnity or other agreement with any third party relating to liability
under any Environmental Law or relating to Hazardous Substances; and (viii)
there are no circumstances or conditions involving Promus or any of its
Subsidiaries that could reasonably be expected to result in any claims,
liability, investigations, costs or restrictions on the ownership, use or
transfer of any property of Promus or any of its Subsidiaries pursuant to any
Environmental Law.
 
    Section 4.13.  EMPLOYEE BENEFIT PLANS.
 
    (a) For purposes of this Agreement, the "Promus Employee Plans" shall mean
all employee benefit plans (as defined in Section 3(3) of ERISA) and all bonus,
stock option, stock purchase, incentive, deferred compensation, supplemental
retirement, severance and other similar employee benefit plans, and all
unexpired severance agreements, written or otherwise, for the benefit of, or
relating to, any current or former employee of Promus or any ERISA Affiliate of
Promus, or any Subsidiary of Promus (together, the "Promus Employee Plans").
Promus has listed in Section 4.13 of the Promus Disclosure Schedule all Promus
Employee Plans other than plans that are "employee welfare benefit plans" within
the meaning of Section 3(1) of ERISA.
 
    (b) With respect to each Promus Employee Plan, Promus has made available to
Doubletree, a true and correct copy of (i) the most recent annual report (Form
5500) filed with the IRS, (ii) such Promus Employee Plan and all amendments
thereto, (iii) each trust agreement and group annuity contract, if any, and all
amendments thereto relating to such Promus Employee Plan and (iv) the most
recent actuarial report or valuation relating to a Promus Employee Plan subject
to Title IV of ERISA.
 
    (c) With respect to the Promus Employee Plans, individually and in the
aggregate, no event has occurred, and to the knowledge of Promus, there exists
no condition or set of circumstances in connection with which Promus could be
subject to any liability that is reasonably likely to have a Promus Material
Adverse Effect under ERISA, the Code or any other applicable law.
 
    (d) With respect to the Promus Employee Plans, individually and in the
aggregate, there are no funded benefit obligations for which contributions have
not been made or properly accrued and there are no unfunded benefit obligations
which have not been accounted for by reserves, or otherwise properly footnoted
in accordance with generally accepted accounting principles, on the financial
statements of Promus, except for obligations which, individually or in the
aggregate, are not reasonably likely to have a Promus Material Adverse Effect.
 
                                      A-27
<PAGE>
    (e) Except as disclosed in the Promus SEC Reports filed prior to the date of
this Agreement, and except as provided for in this Agreement, neither Promus nor
any of its Subsidiaries is a party to any oral or written (i) agreement with any
officer or other key employee of Promus or any of its Subsidiaries, the benefits
of which are contingent, or the terms of which are materially altered, upon the
occurrence of a transaction involving Promus of the nature contemplated by this
Agreement, (ii) agreement with any officer of Promus providing any term of
employment or compensation guarantee extending for a period longer than one year
from the date hereof or for the payment of compensation in excess of $100,000
per annum, or (iii) agreement or plan, including any stock option plan, stock
appreciation right plan, restricted stock plan or stock purchase plan, any of
the benefits of which will be increased, the vesting of the benefits of which
will be accelerated or the funding of benefits of which will be required, by the
occurrence of any of the transactions contemplated by this Agreement or the
value of any of the benefits of which will be calculated on the basis of any of
the transactions contemplated by this Agreement.
 
    Section 4.14.  COMPLIANCE WITH LAWS.  Promus has complied with, is not in
violation of, and has not received any notices of violation with respect to, any
federal, state or local statute, law or regulation with respect to the conduct
of its business, or the ownership or operation of its business, except for
failures to comply or violations which, individually or in the aggregate, have
not had and are not reasonably likely to have a Promus Material Adverse Effect.
 
    Section 4.15.  ACCOUNTING AND TAX MATTERS.
 
    (a) To the best knowledge of Promus, after consulting with its independent
auditors with respect to clause (i) below and its tax advisors with respect to
clause (ii) below, neither Promus nor any of its Affiliates (as defined in
Section 5.12) has taken or agreed to take any action which would (i) prevent
Parent from accounting for the business combination to be effected by the
Mergers as a pooling of interests, or (ii) prevent the Promus Merger from
qualifying as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Doubletree Merger, as a transfer of property to Parent
by holders of Promus Common Stock described in Section 351 of the Code. Except
as contemplated by the Promus Option Agreement, neither Promus nor any of its
Subsidiaries owns any shares of Doubletree Common Stock or other securities
convertible into shares of Doubletree Common Stock (exclusive of any shares
owned by Promus's employee benefit plans).
 
    (b) To the best knowledge of Promus, the stockholders of Promus as a group
have no present plan, intention or arrangement to sell or otherwise dispose of
such number of the shares of Parent Common Stock received in the Promus Merger
as would reduce their ownership in Parent Common Stock to a number of shares
having a value, as of the date of the Promus Merger, of less than eighty percent
(80%) of the value of all the formerly outstanding stock of Promus as of the
same date.
 
    Section 4.16.  REGISTRATION STATEMENT; JOINT PROXY
STATEMENT/PROSPECTUS.  The information to be supplied by Promus for inclusion in
the Registration Statement shall not at the time the Registration Statement is
declared effective by the SEC contain any untrue statement of a material fact or
omit to state any material fact required to be stated in the Registration
Statement or necessary in order to make the statements in the Registration
Statement, in light of the circumstances under which they were made, not
misleading. The information to be supplied by Promus for inclusion in the Joint
Proxy Statement/ Prospectus shall not, on the date the Joint Proxy
Statement/Prospectus is first mailed to stockholders of Promus or Doubletree, at
the time of the Promus Stockholders' Meeting and the Doubletree Stockholder's
Meeting and at the Effective Time, contain any statement which, at such time and
in light of the circumstances under which it shall be made, is false or
misleading with respect to any material fact, omit to state any material fact
necessary in order to make the statements made in the Joint Proxy Statement/
Prospectus not false or misleading, or omit to state any material fact necessary
to correct any statement in any earlier communication with respect to the
solicitation of proxies for the Promus Stockholders' Meeting or the Doubletree
Stockholders' Meeting which has become false or misleading. If at any time prior
to the Effective Time any event relating to Promus or any of its Affiliates,
officers or directors should be
 
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<PAGE>
discovered by Promus which should be set forth in an amendment to the
Registration Statement or a supplement to the Joint Proxy Statement/Prospectus,
Promus shall promptly inform Doubletree.
 
    Section 4.17.  LABOR MATTERS.  Except as disclosed in the Promus SEC Reports
filed prior to the date hereof, neither Promus nor any of its Subsidiaries is a
party to or otherwise bound by any collective bargaining agreement, contract or
other agreement or understanding with a labor union or labor organization, nor,
as of the date hereof, is Promus or any of its Subsidiaries the subject of any
material proceeding asserting that Promus or any of its Subsidiaries has
committed an unfair labor practice or is seeking to compel it to bargain with
any labor union or labor organization nor, as of the date of this Agreement, is
there pending or, to the knowledge of the executive officers of Promus,
threatened, any material labor strike, dispute, walkout, work stoppage,
slow-down or lockout involving Promus or any of its Subsidiaries.
 
    Section 4.18.  INSURANCE.  All material fire and casualty, general
liability, business interruption, product liability, and sprinkler and water
damage insurance policies maintained by Promus or any of its Subsidiaries are
with reputable insurance carriers, provide full and adequate coverage for all
normal risks incident to the business of Promus and its Subsidiaries and their
respective properties and assets, and are in character and amount at least
equivalent to that carried by persons engaged in similar businesses and subject
to the same or similar perils or hazards, except for any such failures to
maintain insurance policies that, individually or in the aggregate, are not
reasonably likely to have a Promus Material Adverse Effect.
 
    Section 4.19.  PROMUS LONG-RANGE PLANS.  Promus has provided to Doubletree
copies of Promus's long-range plans that are substantially identical to the
long-range plans presented by Promus's management to, and adopted by, the Board
of Directors of Promus on July 23, 1997, and Promus has not adopted any other
long-range plans since such date.
 
    Section 4.20.  OPINION OF FINANCIAL ADVISOR.  The financial advisor of
Promus, BT Wolfensohn, has delivered to Promus an opinion dated the date of this
Agreement to the effect that the Promus Exchange Ratio is fair to holders of
Promus Common Stock from a financial point of view.
 
    Section 4.21.  NO EXISTING DISCUSSIONS.  As of the date hereof, Promus is
not engaged, directly or indirectly, in any discussions or negotiations with any
other party with respect to an Acquisition Proposal.
 
    Section 4.22.  SECTION 203 OF THE DGCL NOT APPLICABLE.  The restrictions
contained in Section 203 of the DGCL applicable to a "business combination" (as
defined in Section DGCL 203) will not apply to the authorization, execution,
delivery or performance of this Agreement or the Stock Option Agreements by
Promus or the consummation of the Promus Merger by Promus. No other "fair
price," "moratorium," "control share acquisition" or other similar anti-takeover
statute or regulation is applicable to Promus or (by reason of Promus's
participation therein) the Promus Merger or the other transactions contemplated
by this Agreement.
 
    Section 4.23.  PROMUS RIGHTS PLAN.  Under the terms of the Promus Rights
Plan, neither the execution of this Agreement or the Doubletree Stock Option
Agreement, nor the transactions contemplated hereby or thereby will cause a
Distribution Date to occur or cause the rights issued pursuant to the Promus
Rights Plan to become exercisable, and all such rights shall become
non-exercisable at the Effective Time.
 
                                   ARTICLE V.
 
                                   COVENANTS
 
    Section 5.1.  CONDUCT OF BUSINESS.  During the period from the date of this
Agreement and continuing until the earlier of the termination of this Agreement
or the Effective Time, Doubletree and Promus each agrees as to itself and its
respective Subsidiaries (except to the extent that the other party shall
otherwise consent in writing) to carry on its business in the usual, regular and
ordinary course in substantially the same manner as previously conducted, to pay
its debts and taxes when due subject to good
 
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faith disputes over such debts or taxes, to pay or perform its other obligations
when due, and, to the extent consistent with such business, use all reasonable
efforts consistent with past practices and policies to preserve intact its
present business organization, keep available the services of its present
officers and key employees and preserve its relationships with customers,
suppliers, distributors, and others having business dealings with it. Except as
expressly contemplated by this Agreement or the Stock Option Agreements or as
set forth in Section 5.1 of the Doubletree Disclosure Schedule, during the
period from the date of this Agreement and continuing until the earlier of the
termination of this Agreement or the Effective Time, Doubletree and Promus each
shall not (and shall not permit any of its respective Subsidiaries to), without
the written consent of the other party:
 
        (a) Accelerate, amend or change the period of exercisability of options
    or restricted stock granted under any employee stock plan of such party or
    authorize cash payments in exchange for any options granted under any of
    such plans except as required by the terms of such plans or any related
    agreements (including severance agreements) in effect as of the date of this
    Agreement;
 
        (b) Declare or pay any dividends on or make any other distributions
    (whether in cash, stock or property) in respect of any of its capital stock,
    or split, combine or reclassify any of its capital stock or issue or
    authorize the issuance of any other securities in respect of, in lieu of or
    in substitution for shares of its capital stock, or purchase or otherwise
    acquire, directly or indirectly, any shares of its capital stock except from
    former employees, directors and consultants in accordance with agreements
    providing for the repurchase of shares in connection with any termination of
    service to such party;
 
        (c) Issue, deliver or sell, or authorize or propose the issuance,
    delivery or sale of, any shares of its capital stock or securities
    convertible into shares of its capital stock, or subscriptions, rights,
    warrants or options to acquire, or other agreements or commitments of any
    character obligating it to issue any such shares or other convertible
    securities, other than (i) the grant of options consistent with past
    practices to employees or directors, which options represent in the
    aggregate the right to acquire no more than 25,000 shares (net of
    cancellations) of Doubletree Common Stock or Promus Common Stock, as the
    case may be, (ii) the issuance of shares of Doubletree Common Stock or
    Promus Common Stock, as the case may be, pursuant to the exercise of options
    or warrants outstanding on the date of this Agreement, and (iii) the
    issuance of capital stock under the Doubletree Rights Plan or the Promus
    Rights Plan if required by the respective terms thereof;
 
        (d) Acquire or agree to acquire by merging or consolidating with, or by
    purchasing a substantial equity interest in or substantial portion of the
    assets of, or by any other manner, any business or any corporation,
    partnership or other business organization or division, or otherwise acquire
    or agree to acquire any assets (other than hotel properties, inventory and
    other immaterial assets, in each case in the ordinary course of business);
 
        (e) Sell, lease, license or otherwise dispose of any of its material
    properties or assets, except for transactions (including sales, leases,
    licenses or dispositions of hotel properties, inventory and other immaterial
    assets) in the ordinary course of business;
 
        (f) (i) Increase or agree to increase the compensation payable or to
    become payable to its officers or employees, except for increases in salary
    or wages of employees (other than officers) in accordance with past
    practices, (ii) grant any additional severance or termination pay to, or
    enter into any employment or severance agreements with, any employees or
    officers, (iii) enter into any collective bargaining agreement (other than
    as required by law or extensions to existing agreements in the ordinary
    course of business), (iv) establish, adopt, enter into or amend any bonus,
    profit sharing, thrift, compensation, stock option, restricted stock,
    pension, retirement, deferred compensation, employment, termination,
    severance or other plan, trust, fund, policy or arrangement for the benefit
    of any directors, officers or employees;
 
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<PAGE>
        (g) Amend or propose to amend its Certificate of Incorporation or Bylaws
    except as contemplated by this Agreement;
 
        (h) Incur any indebtedness for borrowed money other than in the ordinary
    course of business;
 
        (i) Take any action that would or is reasonably likely to result in a
    material breach of any provision of this Agreement or the Stock Option
    Agreements or in any of its representations and warranties set forth in this
    Agreement or the Stock Option Agreements being untrue on and as of the
    Closing Date;
 
        (j) Make or rescind any material express or deemed election relating to
    Taxes, settle or compromise any material claim, action, suit, litigation,
    proceeding, arbitration, investigation, audit or controversy relating to
    Taxes, or make any material change to any of its methods of reporting income
    or deductions for federal income tax purposes from those employed in the
    preparation of its federal income tax return for the taxable year ending
    December 31, 1996, except as may be required by applicable law;
 
        (k) Settle any litigation relating to the transactions contemplated
    hereby other than any settlement which would not (i) have a Doubletree
    Material Adverse Effect (if settled by Doubletree), a Promus Material
    Adverse Effect (if settled by Promus) or a material adverse effect on the
    business, properties, financial condition or results of operations of Parent
    (if settled by either Doubletree or Promus) or (ii) adversely effect the
    consummation of the transactions contemplated hereby; or
 
        (l) Take, or agree in writing or otherwise to take, any of the actions
    described in Sections (a) through (k) above.
 
    Section 5.2.  COOPERATION; NOTICE; CURE.  Subject to compliance with
applicable law, from the date hereof until the Effective Time, each of
Doubletree and Promus shall confer on a regular and frequent basis with one or
more representatives of the other party to report on the general status of
ongoing operations and shall promptly provide the other party or its counsel
with copies of all filings made by such party with any Governmental Entity in
connection with this Agreement, the Mergers and the transactions contemplated
hereby and thereby. Each of Doubletree and Promus shall promptly notify the
other in writing of, and will use all commercially reasonable efforts to cure
before the Closing Date, any event, transaction or circumstance, as soon as
practical after it becomes known to such party, that causes or will cause any
covenant or agreement of Doubletree or Promus under this Agreement to be
breached or that renders or will render untrue any representation or warranty of
Doubletree or Promus contained in this Agreement. No notice given pursuant to
this paragraph shall have any effect on the representations, warranties,
covenants or agreements contained in this Agreement for purposes of determining
satisfaction of any condition contained herein.
 
    Section 5.3.  NO SOLICITATION.
 
    (a) Doubletree and Promus each shall not, directly or indirectly, through
any officer, director, employee, financial advisor, representative or agent of
such party (i) solicit, initiate, or encourage any inquiries or proposals that
constitute, or could reasonably be expected to lead to, a proposal or offer for
a merger, consolidation, business combination, sale of substantial assets, sale
of shares of capital stock (including without limitation by way of a tender
offer) or similar transaction involving such party or any of its Subsidiaries,
other than the transactions contemplated by this Agreement (any of the foregoing
inquiries or proposals being referred to in this Agreement as an "Acquisition
Proposal"), (ii) engage in negotiations or discussions with any person (or group
of persons) other than Doubletree or Promus or their respective affiliates (a
"Third Party") concerning, or provide any non-public information to any person
or entity relating to, any Acquisition Proposal, or (iii) agree to or recommend
any Acquisition Proposal; provided, however, that nothing contained in this
Agreement shall prevent Doubletree or Promus, or their respective Board of
Directors, from (A) furnishing non-public information to, or entering into
discussions or negotiations with, any person or entity in connection with an
unsolicited bona fide
 
                                      A-31
<PAGE>
written Acquisition Proposal by such person or entity or modifying or
withdrawing its recommendation with respect to the transactions contemplated
hereby or recommending an unsolicited bona fide written Acquisition Proposal to
the stockholders of such party, if and only to the extent that (1) the Board of
Directors of such party believes in good faith (after consultation with its
financial advisor) that such Acquisition Proposal is reasonably capable of being
completed on the terms proposed and, after taking into account the strategic
benefits anticipated to be derived from the Mergers and the prospects of
Doubletree and Promus as a combined company, would, if consummated, result in a
transaction more favorable to the stockholders of such party over the long term
than the transaction contemplated by this Agreement (a "Superior Proposal") and
the Board of Directors of such party determines in good faith after consultation
with outside legal counsel that such action is required for such Board of
Directors to comply with its fiduciary duties to stockholders under applicable
law and (2) prior to furnishing such non-public information to, or entering into
discussions or negotiations with, such person or entity, such Board of Directors
receives from such person or entity an executed confidentiality and standstill
agreement with terms no less favorable to such party than those contained in the
Confidentiality Agreements, each dated August 16, 1997 between Promus and
Doubletree (the "Confidentiality Agreements"); or (B) complying with Rule 14e-2
promulgated under the Exchange Act with regard to an Acquisition Proposal. Each
of Doubletree and Promus agrees not to release any third party from, or waive
any provision of, any standstill agreement to which it is a party or any
confidentiality agreement between it and another person who has made, or who may
reasonably be considered likely to make, an Acquisition Proposal, unless its
Board of Directors determines in good faith after consultation with outside
legal counsel that such action is required for such Board of Directors to comply
with its fiduciary duties to stockholders under applicable law.
 
    (b) Doubletree and Promus shall each notify the other party immediately
after receipt by Doubletree or Promus (or any of their advisors) of any
Acquisition Proposal or any request for nonpublic information in connection with
an Acquisition Proposal or for access to the properties, books or records of
such party by any person or entity that informs such party that it is
considering making, or has made, an Acquisition Proposal. Such notice shall be
made orally and in writing and shall indicate in reasonable detail the identity
of the offeror and the terms and conditions of such proposal, inquiry or
contact. Such party shall continue to keep the other party hereto informed, on a
current basis, of the status of any such discussions or negotiations and the
terms being discussed or negotiated.
 
    Section 5.4.  JOINT PROXY STATEMENT/PROSPECTUS; REGISTRATION STATEMENT.
 
    (a) As promptly as practical after the execution of this Agreement,
Doubletree and Promus shall prepare and file with the SEC the Joint Proxy
Statement/Prospectus and the Registration Statement in which the Joint Proxy
Statement/Prospectus will be included as a prospectus, provided that Doubletree
and Promus may delay the filing of the Registration Statement until approval of
the Joint Proxy Statement/ Prospectus by the SEC. Doubletree and Promus shall
use all reasonable efforts to cause the Registration Statement to become
effective as soon after such filing as practical. The Joint Proxy
Statement/Prospectus shall include the recommendation of the Board of Directors
of Doubletree in favor of adoption of this Agreement and the Doubletree Merger
and the recommendation of the Board of Directors of Promus in favor of adoption
of this Agreement and the Promus Merger; provided that the Board of Directors of
either party may modify or withdraw such recommendation if such Board of
Directors believes in good faith after consultation with outside legal counsel
that the modification or withdrawal of such recommendation is required for such
Board of Directors to comply with its fiduciary duties under applicable law.
 
    (b) Doubletree and Promus shall make all necessary filings with respect to
the Merger under the Securities Act, the Exchange Act, applicable state blue sky
laws and the rules and regulations thereunder.
 
    Section 5.5.  NASDAQ QUOTATION AND NYSE LISTING.  Each of Doubletree and
Promus agrees to continue the quotation and listing of Doubletree Common Stock
and Promus Common Stock, respectively, on NASDAQ National Market and the NYSE,
respectively, during the term of this Agreement.
 
                                      A-32
<PAGE>
    Section 5.6.  ACCESS TO INFORMATION.  Upon reasonable notice, Doubletree and
Promus shall each (and shall cause each of their respective Subsidiaries to)
afford to the officers, employees, accountants, counsel and other
representatives of the other, access, during normal business hours during the
period prior to the Effective Time, to all its personnel, properties, books,
contracts, commitments and records and, during such period, each of Doubletree
and Promus shall, and shall cause each of their respective Subsidiaries to,
furnish promptly to the other (a) copies of monthly financial reports and
development reports, (b) a copy of each report, schedule, registration statement
and other document filed or received by it during such period pursuant to the
requirements of federal securities laws and (c) all other information concerning
its business, properties and personnel as such other party may reasonably
request. The parties will hold any such information which is nonpublic in
confidence in accordance with the Confidentiality Agreements. No information or
knowledge obtained in any investigation pursuant to this Section 5.6 shall
affect or be deemed to modify any representation or warranty contained in this
Agreement or the conditions to the obligations of the parties to consummate the
Merger.
 
    Section 5.7.  STOCKHOLDERS' MEETINGS.  Doubletree and Promus each shall call
a meeting of its respective stockholders to be held as promptly as practicable
for the purpose of voting, in the case of Doubletree, upon this Agreement and
the Doubletree Merger and, in the case of Promus, upon this Agreement and the
Promus Merger. Subject to Sections 5.3 and 5.4, Doubletree and Promus shall,
through their respective Boards of Directors, recommend to their respective
stockholders adoption of this Agreement and approval of such matters and shall
coordinate and cooperate with respect to the timing of such meetings and shall
use their best efforts to hold such meetings on the same day and as soon as
practicable after the date hereof. Unless otherwise required to comply with the
applicable fiduciary duties of the respective directors of Doubletree and
Promus, as determined by such directors in good faith after consultation with
outside legal counsel, each party shall use all reasonable efforts to solicit
from stockholders of such party proxies in favor of such matters. Doubletree and
Promus intend to submit additional proposals to their respective stockholders at
the Doubletree Stockholders' Meeting and the Promus Stockholders' Meeting,
respectively, separate from the proposals referred to in the first sentence of
this Section 5.7. The approval by Doubletree's stockholders or Promus's
stockholders, as the case may be, of such additional proposals shall not be a
condition to the closing of the Mergers under this Agreement.
 
    Section 5.8.  LEGAL CONDITIONS TO MERGER.
 
    (a) Doubletree and Promus shall each use all reasonable efforts to (i) take,
or cause to be taken, all appropriate action, and do, or cause to be done, all
things necessary and proper under applicable law to consummate and make
effective the transactions contemplated hereby as promptly as practicable, (ii)
obtain from any Governmental Entity or any other third party any consents,
licenses, permits, waivers, approvals, authorizations, or orders required to be
obtained or made by Doubletree or Promus or any of their Subsidiaries in
connection with the authorization, execution and delivery of this Agreement and
the consummation of the transactions contemplated hereby including, without
limitation, the Mergers, and (iii) as promptly as practicable, make all
necessary filings, and thereafter make any other required submissions, with
respect to this Agreement and the Mergers required under (A) the Securities Act
and the Exchange Act, and any other applicable federal or state securities laws,
(B) the HSR Act and any related governmental request thereunder, and (C) any
other applicable law. Doubletree and Promus shall cooperate with each other in
connection with the making of all such filings, including providing copies of
all such documents to the non-filing party and its advisors prior to filing and,
if requested, to accept all reasonable additions, deletions or changes suggested
in connection therewith. Doubletree and Promus shall use their reasonable
efforts to furnish to each other all information required for any application or
other filing to be made pursuant to the rules and regulations of any applicable
law (including all information required to be included in the Joint Proxy
Statement/Prospectus and the Registration Statement) in connection with the
transactions contemplated by this Agreement.
 
    (b) Doubletree and Promus agree, and shall cause each of their respective
Subsidiaries, to cooperate and to use their respective reasonable efforts to
obtain any government clearances required for Closing
 
                                      A-33
<PAGE>
(including through compliance with the HSR Act and any applicable foreign
government reporting requirements), to respond to any government requests for
information, and to contest and resist any action, including any legislative,
administrative or judicial action, and to have vacated, lifted, reversed or
overturned any decree, judgment, injunction or other order (whether temporary,
preliminary or permanent) (an "Order") that restricts, prevents or prohibits the
consummation of the Mergers or any other transactions contemplated by this
Agreement. The parties hereto will consult and cooperate with one another, and
consider in good faith the views of one another, in connection with any
analyses, appearances, presentations, memoranda, briefs, arguments, opinions and
proposals made or submitted by or on behalf of any party hereto in connection
with proceedings under or relating to the HSR Act or any other federal, state or
foreign antitrust or fair trade law. Doubletree and Promus shall cooperate and
work together in any proceedings or negotiations with any Governmental Entity
relating to any of the foregoing. Notwithstanding anything to the contrary in
this Section 5.8, neither Doubletree nor Promus, nor any of their respective
Subsidiaries, shall be required to take any action that would reasonably be
expected to substantially impair the overall benefits expected, as of the date
hereof, to be realized from the consummation of the Mergers.
 
    (c) Each of Doubletree and Promus shall give (or shall cause their
respective Subsidiaries to give) any notices to third parties, and use, and
cause their respective Subsidiaries to use, all reasonable efforts to obtain any
third party consents related to or required in connection with the Mergers.
 
    Section 5.9.  PUBLIC DISCLOSURE.  Doubletree and Promus shall agree on the
form and content of the initial press release regarding the transactions
contemplated hereby and thereafter shall consult with each other before issuing,
and use all reasonable efforts to agree upon, any press release or other public
statement with respect to any of the transactions contemplated hereby and shall
not issue any such press release or make any such public statement prior to such
consultation, except as may be required by law.
 
    Section 5.10.  NONRECOGNITION EXCHANGE.  From and after the date hereof and
until the Effective Time, neither Doubletree nor Promus, nor any of their
respective Subsidiaries or other Affiliates shall knowingly take any action, or
knowingly fail to take any action, that is reasonably likely to jeopardize the
treatment of either of the Mergers as a reorganization described in Section
368(a) of the Code and/or, taken together with the other of the Mergers, as a
transfer of property to Parent by holders of Doubletree Common Stock or Promus
Common Stock, as applicable, described in Section 351 of the Code.
 
    Section 5.11.  POOLING ACCOUNTING.  From and after the date hereof and until
the Effective Time, neither Doubletree nor Promus, nor any of their respective
Subsidiaries or other Affiliates shall knowingly take any action, or knowingly
fail to take any action, that is reasonably likely to jeopardize the treatment
of the Mergers as a pooling of interests for accounting purposes.
 
    Section 5.12.  AFFILIATE AGREEMENTS.  Upon the execution of this Agreement,
Doubletree and Promus will provide each other with a list of those persons who
are, in Doubletree's or Promus's respective reasonable judgment, "affiliates" of
Doubletree or Promus, respectively, within the meaning of Rule 145 (each such
person who is an "affiliate" of Doubletree or Promus within the meaning of Rule
145 is referred to as an "Affiliate") promulgated under the Securities Act
("Rule 145"). Doubletree and Promus shall provide each other such information
and documents as the other party shall reasonably request for purposes of
reviewing such list and shall notify the other party in writing regarding any
change in the identity of its Affiliates prior to the Closing Date. Doubletree
and Promus shall each use all reasonable efforts to deliver or cause to be
delivered to each other by October 15, 1997 (and in any case prior to the
Effective Time) from each of its Affiliates, an executed Affiliate Agreement, in
substantially the form of Exhibit F (with respect to affiliates of Doubletree)
or Exhibit G (with respect to affiliates of Promus) attached hereto (each, an
"Affiliate Agreement," and together, the "Affiliate Agreements").
 
    Section 5.13.  NYSE LISTING.  Doubletree and Promus shall cause Parent to
promptly prepare and submit to the NYSE a listing application covering the
shares of Parent Common Stock to be issued in the Mergers and upon exercise of
Doubletree Stock Options, the GEPT Warrant and Promus Stock Options,
 
                                      A-34
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and shall use all reasonable efforts to cause such shares to be approved for
listing on the NYSE, prior to the Effective Time, subject to official notice of
issuance.
 
    Section 5.14.  STOCK PLANS.
 
    (a) At the Effective Time, each outstanding option to purchase shares of
Doubletree Common Stock (an "Doubletree Stock Option") under the Doubletree
Stock Plans and each outstanding option to purchase shares of Promus Common
Stock (a "Promus Stock Option") under the Promus Stock Plans, in each case
whether vested or unvested, shall be deemed to constitute an option to acquire,
on the same terms and conditions as were applicable under such Doubletree Stock
Option or Promus Stock Option, as the case may be, the same number of shares of
Parent Common Stock as the holder of such Doubletree Stock Option or Promus
Stock Option, as the case may be, would have been entitled to receive pursuant
to the Doubletree Merger or the Promus Merger, respectively, had such holder
exercised such option in full immediately prior to the Effective Time (rounded
downward to the nearest whole number), at a price per share (rounded downward to
the nearest whole cent) equal to (y) the aggregate exercise price for the shares
of Doubletree Common Stock or Promus Common Stock, as the case may be,
purchasable pursuant to such Doubletree Stock Option or such Promus Stock Option
immediately prior to the Effective Time divided by (z) the number of full shares
of Parent Common Stock deemed purchasable pursuant to such Doubletree Stock
Option or Promus Stock Option, as the case may be, in accordance with the
foregoing.
 
    (b) As soon as practicable after the Effective Time, Parent shall deliver to
the participants in the Doubletree Stock Plans and the Promus Stock Plans
appropriate notice setting forth such participants' rights pursuant thereto and
the grants pursuant to Doubletree Stock Plans or Promus Stock Plans, as the case
may be, shall continue in effect on the same terms and conditions (subject to
the adjustments required by this Section 5.14 after giving effect to the
Mergers).
 
    (c) Parent shall take all corporate action necessary to reserve for issuance
a sufficient number of shares of Parent Common Stock for delivery under
Doubletree Stock Plans and Promus Stock Plans assumed in accordance with this
Section 5.14. As soon as practicable after the Effective Time, Parent shall file
a registration statement on Form S-8 (or any successor or other appropriate
forms), or another appropriate form with respect to the shares of Parent Common
Stock subject to such options and shall use its reasonable efforts to maintain
the effectiveness of such registration statement or registration statements (and
maintain the current status of the prospectus or prospectuses contained therein)
for so long as such options remain outstanding.
 
    (d) The Board of Directors of each of Doubletree and Promus shall, prior to
or as of the Effective Time, take all necessary actions, pursuant to and in
accordance with the terms of the Doubletree Stock Plans and the instruments
evidencing the Doubletree Stock Options, or the Promus Stock Plans and the
instruments evidencing the Promus Stock Options, as the case may be, to provide
for the conversion of the Doubletree Stock Options and the Promus Stock Options
into options to acquire Parent Common Stock in accordance with this Section 5.14
without obtaining consent of the holders of the Doubletree Stock Options or
Promus Stock Options in connection with such conversion; provided, however, that
Promus shall use all reasonable efforts to obtain from each holder of Promus
Stock Options a waiver of any right of such holder to receive any cash payment
which may become due with respect to any Promus Stock Options that are
exercisable immediately prior to the Effective Time as a result of the
consummation of the transactions contemplated hereby.
 
    (e) The Board of Directors of each of Doubletree and Promus shall, prior to
or as of the Effective Time, take appropriate action to approve the deemed
cancellation of the Doubletree Stock Options or Promus Stock Options, as the
case may be, for purposes of Section 16(b) of the Exchange Act. The Board of
Directors of Parent shall, prior to or as of the Effective Time, take
appropriate action to approve the deemed grant of options to purchase Parent
Common Stock under the Doubletree Stock Options and the Promus Stock Options (as
converted pursuant to this Section 5.14) for purposes of Section 16(b) of the
Exchange Act.
 
                                      A-35
<PAGE>
    Section 5.15.  BROKERS OR FINDERS.  Each of Doubletree and Promus
represents, as to itself, its Subsidiaries and its Affiliates, that no agent,
broker, investment banker, financial advisor or other firm or person is or will
be entitled to any broker's or finder's fee or any other commission or similar
fee in connection with any of the transactions contemplated by this Agreement
except Morgan Stanley & Co. Incorporated, whose fees and expenses will be paid
by Doubletree in accordance with Doubletree's agreement with such firm (a copy
of which has been delivered by Doubletree to Promus prior to the date of this
Agreement), and BT Wolfensohn, whose fees and expenses will be paid by Promus in
accordance with Promus's agreement with such firm (a copy of which has been
delivered by Promus prior to the date of this Agreement). Each of Promus and
Doubletree agrees to indemnify and hold the other harmless from and against any
and all claims, liabilities or obligations with respect to any such fees,
commissions or expenses asserted by any person on the basis of any act or
statement alleged to have been made by such party or any of its Affiliates.
 
    Section 5.16.  INDEMNIFICATION.
 
    (a) From and after the Effective Time, Parent agrees that it will, and will
cause the Surviving Corporations to, indemnify and hold harmless each present
and former director and officer of Doubletree and Promus (the "Indemnified
Parties"), against any costs or expenses (including attorneys' fees), judgments,
fines, losses, claims, damages, liabilities or amounts paid in settlement
incurred in connection with any claim, action, suit, proceeding or
investigation, whether civil, criminal, administrative or investigative, arising
out of or pertaining to matters existing or occurring at or prior to the
Effective Time, whether asserted or claimed prior to, at or after the Effective
Time, to the fullest extent that Doubletree or Promus, as the case may be, would
have been permitted under Delaware law and its certificate of incorporation or
bylaws in effect on the date hereof to indemnify such Indemnified Party (and
Parent and the Surviving Corporation shall also advance expenses as incurred to
the fullest extent permitted under applicable law, provided the Indemnified
Party to whom expenses are advanced provides an undertaking to repay such
advances if it is ultimately determined that such Indemnified Party is not
entitled to indemnification).
 
    (b) For a period of six years after the Effective Time, Parent shall
maintain or shall cause the Surviving Corporations to maintain (to the extent
available in the market) in effect a directors' and officers' liability
insurance policy covering those persons who are currently covered by
Doubletree's or Promus's directors' and officers' liability insurance policy
(copies of which have been heretofore delivered by Doubletree and Promus to each
other) with coverage in amount and scope at least as favorable as Doubletree's
or Promus's existing coverage; provided that in no event shall Parent or the
Surviving Corporations be required to expend in the aggregate in excess of 200%
of the annual premium currently paid by Doubletree and Promus for such coverage;
and if such premium would at any time exceed 200% of the such amount, then the
Parent or the Surviving Corporations shall maintain insurance policies which
provide the maximum and best coverage available at an annual premium equal to
200% of such amount.
 
    (c) The provisions of this Section 5.16 are intended to be an addition to
the rights otherwise available to the current officers and directors of
Doubletree and Promus by law, charter, statute, bylaw or agreement, and shall
operate for the benefit of, and shall be enforceable by, each of the Indemnified
Parties, their heirs and their representatives.
 
    Section 5.17.  LETTER OF PROMUS'S ACCOUNTANTS.  Promus shall use all
reasonable efforts to cause to be delivered to Doubletree and Promus a letter of
Arthur Andersen LLP, Promus's independent auditors, dated a date within two
business days before the date on which the Registration Statement shall become
effective and addressed to Doubletree, in form reasonably satisfactory to
Doubletree and customary in scope and substance for letters delivered by
independent public accountants in connection with registration statements
similar to the Registration Statement.
 
                                      A-36
<PAGE>
    Section 5.18.  LETTER OF DOUBLETREE'S ACCOUNTANTS.  Doubletree shall use all
reasonable efforts to cause to be delivered to Promus and Doubletree a letter of
KPMG Peat Marwick LLP, Doubletree's independent auditors, dated a date within
two business days before the date on which the Registration Statement shall
become effective and addressed to Promus, in form reasonably satisfactory to
Promus and customary in scope and substance for letters delivered by independent
public accountants in connection with registration statements similar to the
Registration Statement.
 
    Section 5.19.  STOCK OPTION AGREEMENTS.  Promus and Doubletree each agree to
fully perform their respective obligations under the Stock Option Agreements.
 
    Section 5.20.  POST-MERGER CORPORATE GOVERNANCE; EMPLOYMENT ARRANGEMENTS.
 
    (a) At the Effective Time, the total number of persons serving on the Board
of Directors of Parent shall be fourteen (unless otherwise agreed in writing by
Doubletree and Promus prior to the Effective Time), half of whom shall be
Doubletree Directors and half of whom shall be Promus Directors (as such terms
are defined below), all of which Doubletree Directors and Promus Directors shall
be spread as evenly as possible among Parent's three classes of Directors. The
persons to serve initially on the Board of Directors of Parent at the Effective
Time who are Doubletree Directors shall be selected solely by and at the
absolute discretion of the Board of Directors of Doubletree prior to the
Effective Time; and the persons to serve initially on the Board of Directors of
Parent at the Effective Time who are Promus Directors shall be selected solely
by and at the absolute discretion of the Board of Directors of Promus prior to
the Effective Time. In the event that, prior to the Effective Time, any person
so selected to serve on the Board of Directors of Parent after the Effective
Time is unable or unwilling to serve in such position, the Board of Directors
which selected such person shall designate another of its members to serve in
such person's stead in accordance with the provisions of the immediately
preceding sentence. From and after the Effective Time and until December 31,
2002, (a) the Board of Directors of Parent and each Committee of the Board of
Directors of Parent as constituted following each election of Directors shall
consist of an equal number of Doubletree Directors and Promus Directors, and (b)
the size of the Board of Directors of Parent and each Committee of the Board of
Directors of Parent shall not be increased unless such increase is approved by
75% of the members thereof. It is the intention of the parties hereto that Mr.
Dale Frey shall be designated as the initial Chairman of the Human Resources
Committee of Parent immediately following the Effective Time. If, at any time
during the period referenced in the second preceding sentence, the number of
Doubletree Directors and Promus Directors serving, or that would be serving
following the next stockholders' meeting at which Directors are to be elected,
as Directors of Parent or as members of any Committee of the Board of Directors
of Parent, would not be equal, then, subject to the fiduciary duties of the
Directors of Parent, the Board of Directors and the Nominating Committee thereof
shall nominate for election at the next stockholders' meeting at which Directors
are to be elected, such person or persons as may be requested by the remaining
Doubletree Directors (if the number of Doubletree Directors is, or would
otherwise become, less than the number of Promus Directors) or by the remaining
Promus Directors (if the number of Promus Directors is, or would otherwise
become, less than the number of Doubletree Directors) to ensure that there shall
be an equal number of Doubletree Directors and Promus Directors. The provisions
of the preceding sentence shall not apply in respect of any stockholders'
meeting which takes place after December 31, 2002. The term "Doubletree
Director" means (i) any person serving as a Director of Doubletree or any of its
Subsidiaries on the date hereof who becomes a Director of Parent at the
Effective Time and (ii) any person who becomes a Director of Parent pursuant to
the second preceding sentence and who is designated by the Doubletree Directors;
and the term "Promus Director" means (i) any person serving as a Director of
Promus or any of its Subsidiaries on the date hereof who becomes a Director of
Parent at the Effective Time and (ii) any person who becomes a Director of
Parent pursuant to the second preceding sentence and who is designated by the
Promus Directors.
 
    (b) At the Effective Time, pursuant to the terms of the employment contracts
referred to in Section 5.20(c) hereof, (i) Raymond E. Schultz, the current Chief
Executive Officer of Promus, shall hold
 
                                      A-37
<PAGE>
the position of Chief Executive Officer and Chairman of the Board of Parent,
(ii) Richard M. Kelleher, the current President and Chief Executive Officer of
Doubletree, shall hold the position of President and Chief Operating Officer of
Parent, (iii) William L. Perocchi, the current Executive Vice President and
Chief Financial Officer of Doubletree, shall hold the position of Executive Vice
President and Chief Financial Officer of Parent and (iv) Thomas L. Keltner, the
current Executive Vice President, Development of Promus, shall hold the position
of Executive Vice President, Development of Parent. Mr. Schultz will continue as
Chairman of the Board and Chief Executive Officer of Parent until his retirement
no later than December 31, 1999, and, pursuant to the terms of the employment
contracts referred to in Section 5.20(c) hereof and subject to the Bylaws of
Parent, Mr. Kelleher will succeed Mr. Schultz as Chairman of the Board and Chief
Executive Officer of Parent. If any of the persons identified above in this
Section 5.20(b) is unable or unwilling to hold such offices as set forth above,
his successor shall be selected by the Board of Directors of Parent in
accordance with the Bylaws of Parent. The authority, duties and responsibilities
of the Chairman and Chief Executive Officer, the President and Chief Operating
Officer, the Executive Vice President and Chief Financial Officer and the
Executive Vice President, Development shall be set forth in the employment
contracts entered into pursuant to Section 5.20(c) hereof, which employment
contracts shall also set forth in their entirety the rights and remedies of
Messrs. Schultz, Kelleher, Perocchi and Keltner with respect to employment by
Parent , and none of them shall have any right, remedy or cause of action under
this Section 5.20, nor shall they be third party beneficiaries of this Section
5.20.
 
    (c) Prior to the Closing, Parent shall offer to enter into employment
agreements with Raymond E. Schultz, Richard M. Kelleher, William L. Perocchi and
Thomas L. Keltner on substantially the terms previously agreed to by Doubletree
and Promus.
 
    (d) At the Effective Time, Parent shall have an Executive Committee which
initially will be comprised of the following four members of the Board of
Directors of Parent: Richard J. Ferris, Michael D. Rose, Raymond E. Schultz and
Peter V. Ueberroth. In addition, Richard M. Kelleher shall be an ex-officio
member of the Executive Committee with the right to attend but not vote at all
meetings of the Executive Committee. The Executive Committee shall have
responsibility for developing Parent's long-term strategic plans, making
significant capital allocation decisions and such other duties and
responsibilities as specified by the Board of Directors of Parent at or after
the Effective Time. The Executive Committee also shall be required to oversee
the implementation of Promus's existing 100% guest satisfaction guarantee
program at all of Promus's and Doubletree's hotel properties following the
Effective Time. Each member of the Executive Committee that is not an employee
of Parent will be entitled to receive $300,000 per year as compensation for
serving on the Executive Committee.
 
    (e) Each of Doubletree and Promus shall cause Parent to incorporate the
provisions contained in this Section 5.20 into the Bylaws of Parent in effect at
the Effective Time, which provisions shall thereafter be amended only with the
approval of 75% of the members of the Board of Directors of Parent.
 
    Section 5.21.  NAME OF PARENT.  At the Effective Time, Parent shall change
its corporate name to Promus Hotel Corporation.
 
    Section 5.22.  PARENT STOCKHOLDER RIGHTS PLAN.  Prior to the Effective Time,
Doubletree and Promus shall cause Parent to adopt a Stockholder Rights Plan (the
"Parent Rights Plan") that is substantially similar to the Promus Rights Plan,
with such modifications as are acceptable to both Doubletree and Promus.
 
                                      A-38
<PAGE>
    Section 5.23.  GEPT WARRANT; DOUBLETREE REGISTRATION RIGHTS AGREEMENT
 
    (a) At the Effective Time, Parent shall assume all obligations under the
GEPT Warrant, and the holder of the GEPT Warrant thereafter shall have the right
to acquire, on the same pricing and payment terms and conditions as are
currently applicable under the GEPT Warrant, the same number of shares of Parent
Common Stock as the holder of the GEPT Warrant would have been entitled to
receive pursuant to the Doubletree Merger had such holder exercised the GEPT
Warrant in full immediately prior to the Effective Time (rounded downward to the
nearest whole number), at the price per share (rounded downward to the nearest
whole cent) equal to (y) the aggregate exercise price for the shares of
Doubletree Common Stock purchasable pursuant to the GEPT Warrant immediately
prior to the Effective Time divided by (z) the number of full shares of Parent
Common Stock deemed purchasable pursuant to the GEPT Warrant in accordance with
the foregoing.
 
    (b) At the Effective Time, Doubletree and Promus shall cause Parent to enter
into a Registration Rights Agreement (the "Parent Registration Rights
Agreement") substantially similar to the Incorporation and Registration Rights
Agreement dated as of December 16, 1993, as amended on June 30, 1994, February
27, 1996 and November 8, 1996 by and among Doubletree and certain stockholders
of Doubletree (the "Doubletree Registration Rights Agreement") pursuant to which
Parent will provide registration rights to parties to the Doubletree
Registration Rights Agreement (other than Doubletree) with respect to all shares
of Parent Common Stock issued in the Doubletree Merger on account of the shares
of Doubletree Common Stock covered by the Doubletree Registration Rights
Agreement.
 
    Section 5.24.  CONVEYANCE TAXES.  Doubletree and Promus shall cooperate in
the preparation, execution and filing of all returns, questionnaires,
applications or other documents regarding any real property transfer or gains,
sales, use, transfer, value added, stock transfer and stamp taxes, any transfer,
recording, registration and other fees or any similar taxes which become payable
in connection with the transactions contemplated by this Agreement that are
required or permitted to be filed on or before the Effective Time.
 
    Section 5.25.  TRANSFER TAXES.  Doubletree shall pay, and Promus shall pay,
on behalf of the stockholders of Doubletree and Promus, respectively, any New
York State Real Estate Transfer Tax, New York City Real Property Transfer Tax,
New York State Stock Transfer Tax and any similar taxes imposed on the
stockholders of Doubletree and Promus, respectively, by any other State of the
United States (and any interest with respect to such taxes) (the "Transfer
Taxes"), which become payable in connection with the transactions contemplated
by this Agreement. Doubletree and Promus shall cooperate in the preparation,
execution and filing of any required returns with respect to such Transfer Taxes
(including returns on behalf of the stockholders of Doubletree and Promus) and
in the determination of the portion of the consideration allocable to the real
property of Doubletree and the Doubletree Subsidiaries and Promus and the Promus
Subsidiaries in New York State and City (or in any other jurisdiction, if
applicable). The Joint Proxy Statement/Prospectus shall provide that the
stockholders of Doubletree and Promus shall be deemed to have (i) authorized
Doubletree and Promus, respectively, to prepare, execute and file any tax
returns relating to Transfer Taxes and pay any Transfer Taxes arising in
connection with the Mergers, in each case, on behalf of such holders and (ii)
agreed to be bound by the values and allocations established by Doubletree and
Promus in the preparation of any return with respect to the Transfer Taxes, if
applicable.
 
    Section 5.26.  STOCKHOLDER LITIGATION.  Each of Doubletree and Promus shall
give the other the reasonable opportunity to participate in the defense of any
stockholder litigation against Doubletree or Promus, as applicable, and its
directors relating to the transactions contemplated hereby.
 
                                      A-39
<PAGE>
    Section 5.27.  EMPLOYEE BENEFITS; SEVERANCE.
 
    (a) Parent shall cause to continue to be maintained the Doubletree and
Promus annual bonus plans for management employees for the 1997 fiscal year and
shall calculate the amounts payable to participants thereunder on a basis
consistent with the terms of each such plan and the past practice of Doubletree
or Promus, as applicable.
 
    (b) For purposes of determining eligibility to participate, vesting,
entitlement to benefits and in all other respects where length of service is
relevant (except for pension benefit accruals) under any employee benefit plan
or arrangement covering employees of Doubletree and its Subsidiaries
("Doubletree Employees") employees of Promus and its Subsidiaries ("Promus
Employees") following the Effective Time, Parent shall cause such plans or
arrangements to recognize service credit for service with Doubletree or Promus
(as applicable) and any of their respective Subsidiaries to the same extent such
service was recognized under the applicable employee benefit plans immediately
prior to the Effective Time.
 
    (c) At the Effective Time, Parent shall assume and honor in accordance with
their terms the severance agreements and severance pay policies identified in
Section 5.27 of the Doubletree Disclosure Schedule and Section 5.27 of the
Promus Disclosure Schedule.
 
    (d) Promus and Doubletree agree that each may enter into retention and
transition bonus arrangements with its employees prior to the Effective Time,
with the terms and amounts of such payments to be determined jointly by the
Chief Executive Officers of Promus and Doubletree; provided, however, that in no
event shall the aggregate of all such payments exceed approximately $2.5
million.
 
    (e) Promus agrees to use all reasonable efforts, including obtaining any
necessary employee consents, to prevent the automatic funding of any escrow,
trust or similar arrangement pursuant to any employment agreement, arrangement
or benefit plan that arises in connection with the execution of this Agreement
or the consummation of any of the transactions contemplated hereby.
 
                                  ARTICLE VI.
 
                              CONDITIONS TO MERGER
 
    Section 6.1.  CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE
MERGERS.  The respective obligations of each party to this Agreement to effect
the Mergers shall be subject to the satisfaction or waiver by each party prior
to the Effective Time of the following conditions:
 
        (a)  STOCKHOLDER APPROVAL.  This Agreement, the Doubletree Merger and
    the Promus Merger shall have been approved in the manner required under the
    DGCL by the respective holders of the issued and outstanding shares of
    capital stock of Doubletree and Promus.
 
        (b)  HSR ACT.  The waiting period applicable to the consummation of the
    Mergers under the HSR Act shall have expired or been terminated.
 
        (c)  APPROVALS.  Other than the filing provided for by Section 1.4, all
    authorizations, consents, orders or approvals of, or declarations or filings
    with, or expirations of waiting periods imposed by, any Governmental Entity
    the failure of which to file, obtain or occur is reasonably likely to have a
    Doubletree Material Adverse Effect or a Promus Material Adverse Effect shall
    have been filed, been obtained or occurred.
 
        (d)  REGISTRATION STATEMENT.  The Registration Statement shall have
    become effective under the Securities Act and shall not be the subject of
    any stop order or proceedings seeking a stop order.
 
        (e)  NO INJUNCTIONS.  No Governmental Entity shall have enacted, issued,
    promulgated, enforced or entered any order, executive order, stay, decree,
    judgment or injunction or statute, rule,
 
                                      A-40
<PAGE>
    regulation which is in effect and which has the effect of making the Mergers
    illegal or otherwise prohibiting consummation of the Mergers.
 
        (f)  POOLING LETTERS.  Doubletree and Promus shall have received letters
    from KPMG Peat Marwick LLP and Arthur Andersen LLP, respectively, addressed
    to Doubletree and Promus, respectively, regarding their concurrence with the
    respective conclusions of management of Doubletree and Promus, as to the
    appropriateness of the pooling of interests accounting, under Accounting
    Principles Board Opinion No. 16 for the transactions contemplated hereby, it
    being agreed that Doubletree and Promus shall each provide reasonable
    cooperation to KPMG Peat Marwick LLP and Arthur Andersen LLP to enable them
    to issue such letters.
 
        (g)  NYSE LISTING.  The shares of Parent Common Stock to be issued in
    the Merger and upon exercise of Doubletree Options, the GEPT Warrant and
    Promus Options shall have been approved for listing on the NYSE, subject to
    official notice of issuance.
 
        (h)  CORPORATE GOVERNANCE.  Doubletree and Promus shall have taken all
    actions necessary so that (i) not later than the Effective Time, the
    Certificate of Incorporation and Bylaws of Parent shall have been amended to
    be substantially in the form of Exhibit D and Exhibit E hereto; (ii) at the
    Effective Time, the composition of the Board of Directors of Parent and of
    each Committee of the Board of Directors of Parent shall comply with Section
    5.20 hereof (assuming Doubletree has designated the Doubletree Directors and
    Promus has designated the Promus Directors, in each case as contemplated by
    Section 5.20(a) hereof); and (iii) not later than the Effective Time, Parent
    shall have adopted the Parent Rights Plan.
 
    Section 6.2.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF DOUBLETREE.  The
obligation of Doubletree to effect the Doubletree Merger is subject to the
satisfaction of each of the following conditions prior to the Effective Time,
any of which may be waived in writing exclusively by Doubletree:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Promus set forth in this Agreement shall be true and correct as of the
    date of this Agreement and (except to the extent such representations speak
    as of an earlier date) as of the Closing Date as though made on and as of
    the Closing Date, except for, (i) changes contemplated by this Agreement and
    (ii) inaccuracies which, individually or in the aggregate, have not had and
    are not reasonably likely to have a Promus Material Adverse Effect or a
    material adverse effect upon the consummation of the transactions
    contemplated hereby; and Doubletree shall have received a certificate signed
    on behalf of Promus by the chief executive officer and the chief financial
    officer of Promus to such effect.
 
        (b)  PERFORMANCE OF OBLIGATIONS OF PROMUS.  Promus shall have performed
    in all material respects all obligations required to be performed by it
    under this Agreement at or prior to the Closing Date, and Doubletree shall
    have received a certificate signed on behalf of Promus by the chief
    executive officer and the chief financial officer of Promus to such effect.
 
        (c)  TAX OPINION.  Doubletree shall have received the opinion of Dewey
    Ballantine, counsel to Doubletree, based upon reasonably requested
    representation letters and dated the Closing Date, to the effect that the
    Doubletree Merger will be treated as a reorganization described in Section
    368(a) of the Code and/or, taken together with the Promus Merger, as a
    transfer of property to Parent by holders of Doubletree Common Stock
    described in Section 351 of the Code.
 
        (d)  NO TRIGGER OF PROMUS RIGHTS PLAN.  No event shall have occurred
    that has or would result in the triggering of any right or entitlement of
    stockholders of Promus under the Promus Rights Plan, or will occur as a
    result of the consummation of the Mergers.
 
                                      A-41
<PAGE>
    Section 6.3.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF PROMUS.  The
obligations of Promus to effect the Promus Merger are subject to the
satisfaction of each of the following conditions prior to the Effective Time,
any of which may be waived in writing exclusively by Promus:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Doubletree set forth in this Agreement shall be true and correct as of
    the date of this Agreement and (except to the extent such representations
    and warranties speak as of an earlier date) as of the Closing Date as though
    made on and as of the Closing Date, except for, (i) changes contemplated by
    this Agreement and (ii) inaccuracies which, individually or in the
    aggregate, have not had and are not reasonably likely to have a Doubletree
    Material Adverse Effect, or a material adverse effect upon the consummation
    of the transactions contemplated hereby; and Promus shall have received a
    certificate signed on behalf of Doubletree by the chief executive officer
    and the chief financial officer of Doubletree to such effect.
 
        (b)  PERFORMANCE OF OBLIGATIONS OF DOUBLETREE.  Doubletree shall have
    performed in all material respects all obligations required to be performed
    by it under this Agreement at or prior to the Closing Date; and Promus shall
    have received a certificate signed on behalf of Doubletree by the chief
    executive officer and the chief financial officer of Doubletree to such
    effect.
 
        (c)  TAX OPINION.  Promus shall have received the opinion of Latham &
    Watkins, counsel to Promus, based upon reasonably requested representation
    letters and dated the Closing Date, to the effect that the Promus Merger
    will be treated as a reorganization described in Section 368(a) of the Code
    and/or, taken together with the Doubletree Merger, as a transfer of property
    to Parent by holders of Promus Common Stock described in Section 351 of the
    Code.
 
        (d)  NO TRIGGER OF DOUBLETREE RIGHTS PLAN.  No event shall have occurred
    that has or would result in the triggering of any right or entitlement of
    stockholders of Doubletree under the Doubletree Rights Plan, or will occur
    as a result of the consummation of the Mergers.
 
                                  ARTICLE VII.
 
                           TERMINATION AND AMENDMENT
 
    Section 7.1.  TERMINATION.  This Agreement may be terminated at any time
prior to the Effective Time (with respect to Sections 7.1(b) through 7.1(h), by
written notice by the terminating party to the other party), whether before or
after approval of the matters presented in connection with the Mergers by the
stockholders of Doubletree or Promus:
 
        (a) by mutual written consent of Doubletree and Promus; or
 
        (b) by either Doubletree or Promus if the Mergers shall not have been
    consummated by January 31, 1998 (provided that (i) either Doubletree or
    Promus may extend such date to March 31, 1998 by providing written notice
    thereof to the other party on or prior to January 31, 1998 (January 31,
    1998, as it may be so extended, shall be referred to herein as the "Outside
    Date") and (ii) the right to terminate this Agreement under this Section
    7.1(b) shall not be available to any party whose failure to fulfill any
    obligation under this Agreement has been the cause of or resulted in the
    failure of the Mergers to occur on or before such date); or
 
        (c) by either Doubletree or Promus if a court of competent jurisdiction
    or other Governmental Entity shall have issued a nonappealable final order,
    decree or ruling or taken any other nonappealable final action, in each case
    having the effect of permanently restraining, enjoining or otherwise
    prohibiting the Mergers; or
 
        (d) (i) by Doubletree or Promus, if, at the Promus Stockholders' Meeting
    (including any adjournment or postponement), the requisite vote of the
    stockholders of Promus in favor of the approval and adoption of this
    Agreement and the Promus Merger shall not have been obtained; or
 
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<PAGE>
    (ii) by Promus or Doubletree if, at the Doubletree Stockholders' Meeting
    (including any adjournment or postponement), the requisite vote of the
    stockholders of Doubletree in favor of the approval and adoption of this
    Agreement and the Doubletree Merger shall not have been obtained; or
 
        (e) by Doubletree, if (i) the Board of Directors of Promus shall have
    withdrawn or modified its recommendation of this Agreement or the Promus
    Merger (provided that Doubletree's right to terminate this Agreement under
    such clause (i) shall not be available if at such time Promus would be
    entitled to terminate this Agreement under Section 7.1(h) without giving
    effect to the cure period); (ii) after the receipt by Promus of an
    Acquisition Proposal, Doubletree requests in writing that the Board of
    Directors of Promus reconfirm its recommendation of this Agreement and the
    Promus Merger to the stockholders of Promus and the Board of Directors of
    Promus fails to do so within 10 business days after its receipt of
    Doubletree's request; (iii) the Board of Directors of Promus shall have
    recommended to the stockholders of Promus an Alternative Transaction (as
    defined in Section 7.3(e)); (iv) a tender offer or exchange offer for 20% or
    more of the outstanding shares of Promus Common Stock is commenced (other
    than by Doubletree or an Affiliate of Doubletree) and the Board of Directors
    of Promus recommends that the stockholders of Promus tender their shares in
    such tender or exchange offer; or (v) for any reason Promus fails to call
    and hold the Promus Stockholders' Meeting by the Outside Date (provided that
    Doubletree's right to terminate this Agreement under such clause (v) shall
    not be available if at such time Promus would be entitled to terminate this
    Agreement under Section 7.1(h) without giving effect to the cure period); or
 
        (f) by Promus, if (i) the Board of Directors of Doubletree shall have
    withdrawn or modified its recommendation of this Agreement or the Doubletree
    Merger (provided that Promus's right to terminate this Agreement under such
    clause (i) shall not be available if at such time Doubletree would be
    entitled to terminate this Agreement under Section 7.1(h) without giving
    effect to the cure period); (ii) after the receipt by Doubletree of an
    Acquisition Proposal, Promus requests in writing that the Board of Directors
    of Doubletree reconfirm its recommendation of this Agreement and the
    Doubletree Merger to the stockholders of Promus and the Board of Directors
    of Doubletree fails to do so within 10 business days after its receipt of
    Promus's request; (iii) the Board of Directors of Doubletree shall have
    recommended to the stockholders of Doubletree an Alternative Transaction (as
    defined in Section 7.3(e)); (iv) a tender offer or exchange offer for 20% or
    more of the outstanding shares of Doubletree Common Stock is commenced
    (other than by Promus or an Affiliate of Promus) and the Board of Directors
    of Doubletree recommends that the stockholders of Doubletree tender their
    shares in such tender or exchange offer; or (v) for any reason Doubletree
    fails to call and hold the Doubletree Stockholders' Meeting by the Outside
    Date (provided that Promus's right to terminate this Agreement under such
    clause (v) shall not be available if at such time Doubletree would be
    entitled to terminate this Agreement under Section 7.1(h) without giving
    effect to the cure period); or
 
        (g) by Doubletree or Promus, prior to the approval of this Agreement by
    the stockholders of such party, if, as a result of a Superior Proposal
    received by such party from a Third Party, the Board of Directors of such
    party determines in good faith after consultation with outside legal counsel
    that accepting such Superior Proposal is required for such Board of
    Directors to comply with its fiduciary duties to stockholders under
    applicable law; provided, however, that no termination shall be effective
    pursuant to this Section 7.1(g) under circumstances in which a termination
    fee is payable by the terminating party pursuant to Section 7.3(b)(iii) or
    (c)(iii), unless concurrently with such termination, such termination fee is
    paid in full by the terminating party in accordance with Section 7.3(b)(iii)
    or (c)(iii), as applicable; or
 
        (h) by Doubletree or Promus, if (A) there has been a breach of any
    representation, warranty, covenant or agreement on the part of the other
    party set forth in this Agreement, which breach (i) will cause the
    conditions set forth in Section 6.2(a) or (b) (in the case of termination by
    Doubletree) or 6.3(a) or (b) (in the case of termination by Promus) not to
    be satisfied, and (ii) shall not have been cured within 20 business days
    following receipt by the breaching party of written notice of such breach
 
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<PAGE>
    from the other party; or (B) any event shall have occurred which makes it
    impossible for the conditions set forth in Article VI hereof (other than
    Section 6.1(a), 6.1(e), 6.2(d) and 6.3(d)) to be satisfied, provided that
    any termination pursuant to this clause (B) shall not be effective until 20
    business days after notice thereof is delivered by the party seeking to
    terminate to the other party, and shall be automatically rescinded if (1)
    such condition is solely for the benefit of the party receiving such notice
    and (2) such party, prior to such 20th business day, irrevocably waives
    satisfaction of such condition based on such event.
 
        Section 7.2.  EFFECT OF TERMINATION.  In the event of termination of
    this Agreement as provided in Section 7.1, this Agreement shall immediately
    become void and there shall be no liability or obligation on the part of
    Doubletree, Promus, Parent or their respective officers, directors,
    stockholders or Affiliates, except as set forth in Sections 5.15 and 7.3 and
    except that such termination shall not limit liability for a willful breach
    of this Agreement; provided that, the provisions of Sections 5.15 and 7.3 of
    this Agreement, the Stock Option Agreements and the Confidentiality
    Agreements shall remain in full force and effect and survive any termination
    of this Agreement.
 
        Section 7.3.  FEES AND EXPENSES.
 
        (a) Except as set forth in this Section 7.3, all fees and expenses
    incurred in connection with this Agreement and the transactions contemplated
    hereby shall be paid by the party incurring such expenses, whether or not
    the Mergers are consummated.
 
        (b) Doubletree shall pay Promus a termination fee of $45 million upon
    the earliest to occur of the following events:
 
            (i) the termination of this Agreement by either Promus or Doubletree
       pursuant to Section 7.1(d)(ii), if a proposal for an Alternative
       Transaction (as defined below) involving Doubletree shall have been
       publicly announced prior to the Doubletree Stockholders' Meeting and
       either a definitive agreement for an Alternative Transaction is entered
       into, or an Alternative Transaction is consummated, within eighteen
       months of such termination;
 
            (ii) the termination of this Agreement by Promus pursuant to Section
       7.1(f); or
 
           (iii) the termination of this Agreement by Doubletree pursuant to
       Section 7.1(g).
 
        Doubletree's payment of a termination fee pursuant to this subsection
    shall be the sole and exclusive remedy of Promus against Doubletree and any
    of its Subsidiaries and their respective directors, officers, employees,
    agents, advisors or other representatives with respect to the occurrences
    giving rise to such payment; provided that this limitation shall not apply
    in the event of a willful breach of this Agreement by Doubletree.
    Notwithstanding the foregoing, if and to the extent that Promus has
    purchased shares of Doubletree Common Stock pursuant to the Promus Stock
    Option Agreement prior to the payment of the $45 million fee provided for
    herein (the "Fee Payment Date"), the amount payable to Promus under this
    Section 7.3(b), together with (i)(x) the net cash amount received by Promus
    prior to the Fee Payment Date pursuant to Doubletree's repurchase of Shares
    (as defined in the Promus Stock Option Agreement) pursuant to Section 7 of
    the Promus Stock Option Agreement, less (y) Promus's purchase price for such
    Shares, and (ii)(x) the amounts received by Promus prior to the Fee Payment
    Date pursuant to the sale of Shares (or any other securities into which such
    Shares are converted or exchanged), less (y) Promus's purchase price for
    such Shares, shall not exceed $65 million.
 
        (c) Promus shall pay Doubletree a termination fee of $45 million upon
    the earliest to occur of the following events:
 
            (i) the termination of this Agreement by either Doubletree or Promus
       pursuant to Section 7.1(d)(i), if a proposal for an Alternative
       Transaction (as defined below) involving Promus shall have been publicly
       announced prior to the Promus Stockholders' Meeting and either an
 
                                      A-44
<PAGE>
       Alternative Transaction is entered into, or an Alternative Transaction is
       consummated, within eighteen months of such termination;
 
            (ii) the termination of this Agreement by Doubletree pursuant to
       Section 7.1(e); or
 
           (iii) the termination of this Agreement by Promus pursuant to Section
       7.1 (g).
 
        Promus's payment of a termination fee pursuant to this subsection shall
    be the sole and exclusive remedy of Doubletree against Promus and any of its
    Subsidiaries and their respective directors, officers, employees, agents,
    advisors or other representatives with respect to the occurrences giving
    rise to such payment; provided that this limitation shall not apply in the
    event of a willful breach of this Agreement by Promus. Notwithstanding the
    foregoing, if and to the extent that Doubletree has purchased shares of
    Promus Common Stock pursuant to the Doubletree Stock Option Agreement prior
    to the Fee Payment Date, the amount payable to Doubletree under this Section
    7.3(c), together with (i)(x) the net cash amount received by Doubletree
    prior to the Fee Payment Date pursuant to Promus's repurchase of Shares (as
    defined in the Doubletree Stock Option Agreement) pursuant to Section 7 of
    the Doubletree Stock Option Agreement, less (y) Doubletree's purchase price
    for such Shares, and (ii)(x) the amounts received by Doubletree prior to the
    Fee Payment Date pursuant to the sale of Shares (or any other securities
    into which such Shares are converted or exchanged), less (y) Doubletree's
    purchase price for such Shares, shall not exceed $65 million.
 
        (d) The fees payable pursuant to Section 7.3(b) or 7.3(c) shall be paid
    concurrently with the first to occur of the events described in Section
    7.3(b)(i), (ii) or (iii) or 7.3(c)(i), (ii) or (iii), respectively.
 
        (e) As used in this Agreement, "Alternative Transaction" means either
    (i) a transaction pursuant to which any Third Party acquires more than 20%
    of the outstanding shares of Doubletree Common Stock or Promus Common Stock,
    as the case may be, pursuant to a tender offer or exchange offer or
    otherwise, (ii) a merger or other business combination involving Doubletree
    or Promus pursuant to which any Third Party (or the stockholders of a Third
    Party) acquires more than 20% of the outstanding shares of Doubletree Common
    Stock or Promus Common Stock, as the case may be, or the entity surviving
    such merger or business combination, (iii) any other transaction pursuant to
    which any Third Party acquires control of assets (including for this purpose
    the outstanding equity securities of Subsidiaries of Doubletree or Promus,
    and the entity surviving any merger or business combination including any of
    them) of Doubletree or Promus having a fair market value (as determined by
    the Board of Directors of Doubletree or Promus, as the case may be, in good
    faith) equal to more than 20% of the fair market value of all the assets of
    Doubletree or Promus, as the case may be, and their respective Subsidiaries,
    taken as a whole, immediately prior to such transaction, or (iv) any public
    announcement of a proposal, plan or intention to do any of the foregoing or
    any agreement to engage in any of the foregoing.
 
        Section 7.4.  AMENDMENT.  This Agreement may be amended by the parties
    hereto, by action taken or authorized by their respective Boards of
    Directors, at any time before or after approval of the matters presented in
    connection with the Mergers by the stockholders of Doubletree or Promus,
    but, after any such approval, no amendment shall be made which by law
    requires further approval by such stockholders without such further
    approval. This Agreement may not be amended except by an instrument in
    writing signed on behalf of each of the parties hereto; provided, however,
    that this Agreement may be amended in writing without obtaining the
    signatures of Doubletree, Promus or Parent solely for the purpose of adding
    Doubletree Sub and Merger Sub as parties to this Agreement.
 
        Section 7.5.  EXTENSION; WAIVER.  At any time prior to the Effective
    Time, the parties hereto, by action taken or authorized by their respective
    Boards of Directors, may, to the extent legally allowed, (i) extend the time
    for the performance of any of the obligations or other acts of the other
    parties hereto, (ii) waive any inaccuracies in the representations and
    warranties contained herein or in any document delivered pursuant hereto and
    (iii) waive compliance with any of the agreements or
 
                                      A-45
<PAGE>
    conditions contained here. Any agreement on the part of a party hereto to
    any such extension or waiver shall be valid only if set forth in a written
    instrument signed on behalf of such party.
 
                                 ARTICLE VIII.
 
                                 MISCELLANEOUS
 
        Section 8.1.  NONSURVIVAL OF REPRESENTATIONS, WARRANTIES AND
    AGREEMENTS.  None of the representations, warranties and agreements in this
    Agreement or in any instrument delivered pursuant to this Agreement shall
    survive the Effective Time, except for the agreements contained in Sections
    1.6, 2.1, 2.2, 2.4, 5.16, 5.19, 5.20 and 5.27 and Article VIII, and the
    agreements of the Affiliates delivered pursuant to Section 5.12. The
    Confidentiality Agreements shall survive the execution and delivery of this
    Agreement.
 
        Section 8.2.  NOTICES.  All notices and other communications hereunder
    shall be in writing and shall be deemed given if delivered personally,
    telecopied (which is confirmed) or mailed by registered or certified mail
    (return receipt requested) to the parties at the following addresses (or at
    such other address for a party as shall be specified by like notice):
 
           (a) if to Doubletree, to
 
      Doubletree Corporation
                                 410 North 44th Street, Suite 700
                                 Phoenix, AZ 85008
                                 Attn: Richard M. Kelleher
                                 Telecopy: (602) 220-6753
 
      with a copy to
                                 Dewey Ballantine
                                 1301 Avenue of the Americas
                                 New York, NY 10019-6092
                                 Attn: William J. Phillips, Esq.
                                 Telecopy: (212) 295-6333
 
           (b) if to Promus, to
 
      Promus Hotel Corporation
                                 755 Crossover Lane
                                 Memphis, TN 38117
                                 Attn: Raymond E. Schultz
                                 Telecopy: (901) 374-5636
 
      with a copy to:
                                 Latham & Watkins
                                 633 West Fifth Street, Suite 4000
                                 Los Angeles, CA 90071-2007
                                 Attn: John M. Newell, Esq.
                                 Telecopy: (213) 891-8763
 
    Section 8.3.  INTERPRETATION.  When a reference is made in this Agreement to
Sections, such reference shall be to a Section of this Agreement unless
otherwise indicated. The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. Whenever the words "include,"
"includes" or "including" are used in this Agreement they shall be deemed to be
followed by the words "without limitation." The phrase "made
 
                                      A-46
<PAGE>
available" in this Agreement shall mean that the information referred to has
been made available if requested by the party to whom such information is to be
made available. The phrases "the date of this Agreement", "the date hereof," and
terms of similar import, unless the context otherwise requires, shall be deemed
to refer to September 1, 1997.
 
    Section 8.4.  COUNTERPARTS.  This Agreement may be executed in two or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when two or more counterparts have been signed by each of
the parties and delivered to the other parties, it being understood that all
parties need not sign the same counterpart.
 
    Section 8.5.  ENTIRE AGREEMENT; NO THIRD PARTY BENEFICIARIES.  This
Agreement and all documents and instruments referred to herein (a) constitute
the entire agreement and supersedes all prior agreements and understandings,
both written and oral, among the parties with respect to the subject matter
hereof, and (b) except as provided in Section 5.16 are not intended to confer
upon any person other than the parties hereto any rights or remedies hereunder;
provided that the Confidentiality Agreements shall remain in full force and
effect until the Effective Time. Each party hereto agrees that, except for the
representations and warranties contained in this Agreement, neither Doubletree
nor Promus makes any other representations or warranties, and each hereby
disclaims any other representations and warranties made by itself or any of its
officers, directors, employees, agents, financial and legal advisors or other
representatives, with respect to the execution and delivery of this Agreement or
the transactions contemplated hereby, notwithstanding the delivery or disclosure
to the other or the other's representatives of any documentation or other
information with respect to any one or more of the foregoing.
 
    Section 8.6.  GOVERNING LAW.  This Agreement shall be governed and construed
in accordance with the laws of the State of Delaware without regard to any
applicable conflicts of law.
 
    Section 8.7.  ASSIGNMENT.  Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties. Subject to the preceding sentence, this Agreement
will be binding upon, inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.
 
                                      A-47
<PAGE>
                                   SIGNATURES
 
    IN WITNESS WHEREOF, Doubletree, Promus and Parent have caused this Agreement
to be signed by their respective duly authorized officers as of the date first
written above.
 
                                          DOUBLETREE CORPORATION
 
                                          /s/ Richard M. Kelleher
                                          --------------------------------------
 
                                          By: Richard M. Kelleher
                                          Its: President & CEO
 
                                          PROMUS HOTEL CORPORATION
 
                                          /s/ Raymond E. Schultz
                                          --------------------------------------
 
                                          By: Raymond E. Schultz
                                          Its: President & Chief Executive
                                          Officer
 
                                          PARENT HOLDING CORP.
 
                                          /s/ Raymond E. Schultz
                                          --------------------------------------
 
                                          By: Raymond E. Schultz
                                          Its: Chief Executive Officer &
                                          Chairman of the Board
 
                                      A-48
<PAGE>
                                                                         ANNEX B
 
   [LOGO]
 
                                                                       [LOGO]
 
                                                               September 1, 1997
 
Board of Directors
Doubletree Corporation
410 North 44th Street, Suite 700
Phoenix, AZ 85008
 
Gentlemen and Madam:
 
    We understand that Doubletree Corporation ("Doubletree"), Promus Hotel
Corporation ("Promus") and Parent Holding Corp. ("Parent"), have entered into an
Agreement and Plan of Merger, dated as of September 2, 1997 (the "Merger
Agreement"), which provides, among other things, for (i) the merger of a
wholly-owned subsidiary of Parent with and into Doubletree and (ii) for the
merger of another wholly-owned subsidiary of Parent with and into Promus
(collectively, the "Mergers"), such that the stockholders of Doubletree and
Promus will become wholly-owned subsidiaries of the Parent. Pursuant to the
Mergers, (i) each outstanding share of common stock, par value $0.10 per share,
of Promus ("Promus Common Stock"), other than shares of Promus Common Stock held
in the treasury or any shares held by Doubletree or any wholly-owned subsidiary
of Doubletree, will be converted into 0.9250 shares (the "Promus Exchange
Ratio") of common stock, par value $0.01 per share, of the Parent ("Parent
Common Stock") and (ii) each outstanding share of common stock, par value $0.01
per share, of Doubletree ("Doubletree Common Stock"), other than shares of
Doubletree Common Stock held in the treasury or any shares held by Promus or any
wholly-owned subsidiary of Promus, will be converted into 1.0000 shares (the
"Doubletree Exchange Ratio") of Parent Common Stock. It is also our
understanding that Doubletree and Promus have entered into Stock Option
Agreements, each dated as of September 1, 1997 (the "Option Agreements"), which
provide, among other things, for the grant by Doubletree to Promus of an option
to acquire certain shares of Doubletree Common Stock, the grant by Promus to
Doubletree to acquire certain shares of Promus Common Stock, in each case, upon
the terms and conditions provided in such agreements (collectively, the
"Options"). The terms and conditions of the Mergers and the Options are more
fully set forth in the Merger Agreement and the Option Agreements, respectively.
 
    You have asked for our opinion as to whether the Doubletree Exchange Ratio,
taking into account the Promus Exchange Ratio, pursuant to the Merger Agreement
is fair from a financial point of view to the holders of shares of Doubletree
Common Stock.
 
For purposes of the opinion set forth herein, we have:
 
     i) reviewed certain publicly available financial statements and other
        information of Promus and Doubletree;
 
     ii) reviewed certain internal financial statements and other financial and
         operating data concerning Doubletree prepared by the management of
         Doubletree;
 
    iii) analyzed certain financial projections prepared by the management of
         Doubletree;
 
    iv) discussed on a limited basis the past and current operations and
        financial condition and the prospects of Doubletree with senior
        executives of Doubletree and analyzed the proforma impact of the Merger
        on Doubletree's earnings per share;
 
                                      B-1
<PAGE>
                                                                       [LOGO]
 
     v) reviewed certain internal financial statements and other financial and
        operating data concerning Promus prepared by the management of Promus;
 
    vi) analyzed certain financial projections prepared by the management of
        Promus;
 
    vii) discussed on a limited basis the past and current operations and
         financial condition and the prospects of Promus with senior executives
         of Promus;
 
   viii) reviewed the reported prices and trading activity for Doubletree Common
         Stock and Promus Common Stock;
 
    ix) discussed with the managements of Doubletree and Promus their views of
        the strategic rationale for the Merger and the cost savings and other
        synergies expected to result from the Merger;
 
     x) participated in discussions and negotiations among representatives of
        Doubletree and Promus and their financial and legal advisors;
 
    xi) reviewed the Merger Agreement, the Option Agreements, and certain
        related documents; and
 
    xii) performed such other analyses and considered such other factors as we
         have deemed appropriate.
 
    We have assumed and relied upon without independent verification the
accuracy and completeness of the information reviewed by us for the purposes of
this opinion. With respect to the financial projections, we have assumed that
they have been reasonably prepared on bases reflecting the best currently
available estimates and judgments of the future financial performance of
Doubletree and Promus. We have relied upon, with your consent, the assumptions
of the managements of Doubletree and Promus regarding cost savings and other
synergies expected to result from the Merger. We have not made any independent
valuation or appraisal of the assets or liabilities of Promus or Doubletree, nor
have we been furnished with any such appraisals. We have assumed that the Merger
will be treated as a "pooling-of-interests" business combination in accordance
with U.S. Generally Accepted Accounting Principles and will qualify as a tax-
free exchange within the meaning of Section 351(a) of the Internal Revenue Code
of 1986. We have also assumed that the Merger will be consummated in accordance
with the terms set forth in the Merger Agreement. Our opinion is necessarily
based on economic, market and other conditions as in effect on, and the
information made available to us as of, the date hereof. In arriving at our
opinion, we were not authorized to solicit, and did not solicit, interest from
any party with respect to the acquisition of Doubletree, nor did we negotiate
with any party other than Promus in connection with a transaction involving
Doubletree.
 
    We have acted as financial advisor to the Board of Directors of Doubletree
in connection with this transaction and will receive a fee for our services. In
the past, Morgan Stanley & Co. Incorporated and its affiliates have provided
financial advisory and financing services for Doubletree and Promus and have
received fees for the rendering of those services.
 
    It is understood that this letter is for the information of the Board of
Directors of Doubletree and may not be used for any other purpose without our
prior written consent, except that this opinion may be included in its entirety
in any filing made by Doubletree with the Securities and Exchange Commission
with respect to the Merger. In addition, we express no opinion and make no
recommendation as to how the holders of Doubletree Common Stock should vote at
the stockholders' meeting held in connection with the Merger.
 
    Based on and subject to the foregoing, we are of the opinion on the date
hereof that the Doubletree Exchange Ratio, taking into account the Promus
Exchange Ratio, pursuant to the Merger Agreement is fair from a financial point
of view to the holders of shares of Doubletree Common Stock.
 
                                          Very truly yours,
 
<TABLE>
<S>                             <C>  <C>
                                MORGAN STANLEY & CO. INCORPORATED
 
                                By:          By: /s/ Mahmoud A. Mamdani
                                     -----------------------------------------
                                                 Mahmoud A. Mamdani
                                                 MANAGING DIRECTOR
</TABLE>
 
                                      B-2
<PAGE>
                                                                         ANNEX C
 
                                                                [LOGO]
 
                                          September 1, 1997
 
The Board of Directors
Promus Hotel Corporation
755 Crossover Lane
Memphis, TN 38117
 
Gentlemen and Madame:
 
    BT Wolfensohn ("BT Wolfensohn") has acted as financial advisor to Promus
Hotel Corporation ("Promus") in connection with the proposed merger of Promus
and Doubletree Corporation ("Doubletree") pursuant to the Agreement and Plan of
Merger (the "Merger Agreement"), to be dated as of September 1, 1997 among
Promus, Doubletree and a newly formed holding company, Parent Holding
Corporation ("Parent"), which provides, among other things, for the merger of
Promus with a wholly-owned subsidiary of Parent ("Promus Subsidiary Merger") and
the merger of Doubletree with another wholly-owned subsidiary of Parent
("Doubletree Subsidiary Merger") (the Promus Subsidiary Merger and the
Doubletree Subsidiary Merger, when taken together, the "Transaction"). As a
result of the Transaction, Promus and Doubletree will become wholly-owned
subsidiaries of Parent. As set forth more fully in the Merger Agreement, as a
result of the Transaction each share of Common Stock, par value $.10, of Promus
("Promus Common Stock") not owned directly or indirectly by Promus or Doubletree
will be converted into the right to receive 0.925 of a share of Common Stock of
Parent (the "Exchange Ratio") and each share of Common Stock, par value $.01, of
Doubletree ("Doubletree Common Stock"), not owned directly or indirectly by
Promus or Doubletree, will be converted into the right to receive 1.0 share of
Common Stock of Parent (the "Doubletree Exchange Ratio"). The terms and
conditions of the Transaction are more fully set forth in the Merger Agreement.
 
    You have requested BT Wolfensohn's opinion, as investment bankers, as to the
fairness, from a financial point of view, of the Exchange Ratio to Promus
shareholders.
 
    In connection with BT Wolfensohn's role as financial advisor to Promus, and
in arriving at its opinion, BT Wolfensohn has, among other things:
 
    (i) reviewed the publicly available consolidated financial statements of
       Doubletree for recent years and interim periods to date and certain other
       relevant financial and operating data of Doubletree available from public
       sources or provided to BT Wolfensohn by Doubletree;
 
    (ii) reviewed the publicly available consolidated financial statements of
       Promus for recent years and interim periods to date and certain other
       relevant financial and operating data of Promus available from public
       sources or provided to BT Wolfensohn by Promus;
 
    (iii) reviewed certain internal financial and operating information,
       including certain projections, relating to Promus and Doubletree,
       provided to BT Wolfensohn by Promus and Doubletree, respectively;
 
                  [LOGO]
                                      C-1
<PAGE>
                                                                [LOGO]
 
The Board of Directors
Promus Hotel Corporation
September 1, 1997
Page 2
 
    (iv) discussed the business, financial condition and prospects of Promus and
       Doubletree with certain officers and certain members of management of
       each organization;
 
    (v) considered the strategic objectives of Promus as outlined to BT
       Wolfensohn by Promus management;
 
    (vi) reviewed the trading prices and activity for Promus Common Stock and
       Doubletree Common Stock;
 
    (vii) reviewed the financial terms of the Merger Agreement;
 
    (viii)reviewed the financial terms of selected transactions in the lodging
       industry which BT Wolfensohn believed to be relevant;
 
    (ix) reviewed certain public information pertaining to companies engaged in
       businesses that BT Wolfensohn believed to be generally comparable to
       those of Promus and Doubletree, including, without limitation, the
       trading prices for the equity securities of such companies;
 
    (x) analyzed the pro forma impact of the Transaction on Promus and
       Doubletree, including with respect to the combined company's earnings per
       share, consolidated capitalization and financial ratios; and
 
    (xi) performed such other analyses and examinations and considered such
       other information, financial studies, analyses and investigations and
       financial, economic and market data as BT Wolfensohn deemed relevant.
 
    BT Wolfensohn has not assumed responsibility for independent verification of
any information, whether publicly available or furnished to it, concerning
Promus or Doubletree, including, without limitation, any financial information,
forecasts or projections, considered in connection with the rendering of its
opinion. Accordingly, for purposes of its opinion, BT Wolfensohn has assumed and
relied upon the accuracy and completeness of all such information and BT
Wolfensohn has not conducted a physical inspection of any of the properties or
assets, and has not prepared or obtained any independent evaluation or appraisal
of any of the assets or liabilities, of Promus or Doubletree. With respect to
the financial forecasts and projections made available to BT Wolfensohn and used
in its analysis, including estimates of the operating savings and other benefits
and cost reductions achievable as a result of the Transaction, BT Wolfensohn has
assumed that they have been reasonably prepared on bases reflecting the best
currently available estimates and judgments of the management of Promus or
Doubletree as to the matters covered thereby and in rendering its opinion BT
Wolfensohn expresses no view as to the reasonableness of such forecasts and
projections or the assumptions on which they are based. In addition, BT
Wolfensohn expresses no opinion as to prices at which shares of Parent will
trade following the Transaction. BT Wolfensohn has also assumed that the
Transaction will qualify for pooling-of-interests accounting treatment in
accordance with generally accepted accounting principles and as a tax-free
reorganization for United
 
                  [LOGO]
                                      C-2
<PAGE>
                                                                [LOGO]
 
The Board of Directors
Promus Hotel Corporation
September 1, 1997
Page 3
 
States federal income tax purposes. BT Wolfensohn's opinion is necessarily based
upon economic, market and other conditions as in effect on, and the information
made available to us as of, the date hereof.
 
    In connection with our engagement, we have not been authorized by Promus or
its Board of Directors to solicit, nor have we solicited, any third party
indications of interest for the acquisition of the Company, nor have we reviewed
with Promus or its Board of Directors any potential transactions in lieu of the
Transaction.
 
    This opinion is addressed to, and for the use and benefit of, the Board of
Directors of Promus and is not a recommendation to the stockholders of Promus or
Doubletree to approve the Transaction.
 
    In connection with its opinion, BT Wolfensohn has assumed that the
Transaction will be consummated on the terms and subject to the conditions
described in the Merger Agreement and that all conditions to the consummation of
the Transaction contained in the Merger Agreement will be satisfied without the
waiver of such conditions. BT Wolfensohn has also assumed that all necessary
governmental and regulatory approvals and consents of third parties will be
obtained on terms and conditions that will not have a material adverse effect on
Promus or Doubletree.
 
    BT Wolfensohn will receive a fee for its financial advisory services
rendered in connection with the currently contemplated Transaction, a
substantial portion of which fee is contingent on the consummation of the
Transaction. In the ordinary course of business, BT Wolfensohn or its affiliates
may actively trade equity securities of Promus or Doubletree for its own account
or for the accounts of its customers and, accordingly, may from time to time
hold a long or short position in such securities.
 
    BT Wolfensohn is engaged in the merger and acquisition and client advisory
business of Bankers Trust and, for legal and regulatory purposes, is a division
of BT Alex. Brown Incorporated, a registered broker dealer and member of the New
York Stock Exchange.
 
    Based upon and subject to the foregoing, it is BT Wolfensohn's opinion as
investment bankers that the Exchange Ratio in connection with the Transaction
pursuant to the Merger Agreement is fair, from a financial point of view, to
Promus shareholders.
 
                                          Very truly yours,
 
                                          /s/ BT Wolfensohn
                                          --------------------------------------
                                          BT WOLFENSOHN
 
                  [LOGO]
                                      C-3
<PAGE>
                                                                         ANNEX D
 
                                    FORM OF
                                    RESTATED
                          CERTIFICATE OF INCORPORATION
                                       OF
                              PARENT HOLDING CORP.
 
    The present name of the Corporation is Parent Holding Corp. and the
Corporation was incorporated by the filing of its original Certificate of
Incorporation with the Secretary of State of the State of Delaware on August 29,
1997. This Restated Certificate of Incorporation of the Corporation, which both
restates and further amends the provisions of the Corporation's Certificate of
Incorporation, was duly adopted in accordance with the provisions of Sections
242 and 245 of the General Corporation Law of the State of Delaware and by the
written consent of stockholders in accordance with Section 228 of the General
Corporation Law of the State of Delaware. The Certificate of Incorporation of
the Corporation is hereby amended and restated to read in its entirety as
follows:
 
        FIRST:  The name of the Corporation is Promus Hotel Corporation.
 
        SECOND:  The address of the registered office of the Corporation in the
    State of Delaware is Corporation Service Company, 1013 Centre Road, in the
    City of Wilmington, County of New Castle, State of Delaware. The name of its
    registered agent at that address is Corporation Service Company.
 
        THIRD:  The purpose of the Corporation is to engage in any lawful act or
    activity for which a corporation may be organized under the General
    Corporation Law of Delaware as set forth in Title 8 of the Delaware Code
    (the "GCL").
 
        FOURTH:  A.  The total number of shares of stock which the Corporation
    shall have authority to issue is 510,000,000 (the "Capital Stock")
    consisting of 500,000,000 shares of Common Stock, par value $0.01 per share
    (the "Common Stock"), and 10,000,000 shares of Preferred Stock, par value of
    $0.01 per share (the "Preferred Stock").
 
        B.  Shares of Preferred Stock may be issued from time to time in one or
    more series, as provided for herein or as provided for by the Board of
    Directors as permitted hereby. All shares of Preferred Stock shall be of
    equal rank and shall be identical, except in respect of the terms fixed
    herein for the series provided for herein or fixed by the Board of Directors
    for series provided for by the Board of Directors as permitted hereby. All
    shares of any one series shall be identical in all respects with all the
    other shares of such series, except the shares of any one series issued at
    different times may differ as to the dates from which dividends thereon may
    be cumulative.
 
        The Board of Directors is hereby authorized, by resolution or
    resolutions, to establish, out of the unissued shares of Preferred Stock not
    then allocated to any series of Preferred Stock, additional series of
    Preferred Stock. Before any shares of any such additional series are issued,
    the Board of Directors shall fix and determine, and is hereby expressly
    empowered to fix and determine, by resolution or resolutions, the number of
    shares constituting such series and the distinguishing characteristics and
    the relative rights, preferences, privileges and immunities, if any, and any
    qualifications, limitations or restrictions thereof, of the shares thereof,
    so far as not inconsistent with the provisions of this Article FOURTH.
    Without limiting the generality of the foregoing, the Board of Directors may
    fix and determine:
 
             1. The designation of such series and the number of shares which
       shall constitute such series of such shares;
 
             2. The rate of dividend, if any, payable on shares of such series;
 
                                      D-1
<PAGE>
             3. Whether the shares of such series shall be cumulative,
       non-cumulative or partially cumulative as to dividends, and the dates
       from which any cumulative dividends are to accumulate;
 
             4. Whether the shares of such series may be redeemed, and, if so,
       the price or prices at which and the terms and conditions on which shares
       of such series may be redeemed;
 
             5. The amount payable upon shares of such series in the event of
       the voluntary or involuntary dissolution, liquidation or winding up of
       the affairs of the Corporation;
 
             6. The sinking fund provisions, if any, for the redemption of
       shares of such series;
 
             7. The voting rights, if any, of the shares of such series;
 
             8. The terms and conditions, if any, on which shares of such series
       may be converted into shares of capital stock of the Corporation of any
       other class or series;
 
             9. Whether the shares of such series are to be preferred over
       shares of capital stock of the Corporation of any other class or series
       as to dividends, or upon the voluntary or involuntary dissolution,
       liquidation, or winding up of the affairs of the Corporation, or
       otherwise; and
 
            10. Any other characteristics, preferences, limitations, rights,
       privileges, immunities or terms not inconsistent with the provisions of
       this Article FOURTH.
 
        C.  Except as otherwise provided in this Restated Certificate of
    Incorporation, each holder of Common Stock shall be entitled to one vote for
    each share of Common Stock held by him on all matters submitted to
    stockholders for a vote and each holder of Preferred Stock of any series
    that is Voting Stock shall be entitled to such number of votes for each
    share held by him as may be specified in the resolutions providing for the
    issuance of such series.
 
        Except as otherwise provided by law, the presence, in person or by
    proxy, of the holders of record of issued and outstanding shares of Capital
    Stock entitling the holders thereof to cast a majority of the votes entitled
    to be cast by the holders of issued and outstanding shares of Capital Stock
    entitled to vote shall constitute a quorum at all meetings of the
    stockholders.
 
        FIFTH:  A.  The Board of Directors shall have the power to make, adopt,
    alter, amend, change or repeal the Bylaws of the Corporation by resolution
    adopted by the affirmative vote of a majority of the entire Board of
    Directors, subject to any bylaw requiring the affirmative vote of a larger
    percentage of the members of the Board of Directors.
 
        B.  Stockholders may not make, adopt, alter, amend, change or repeal the
    Bylaws of the Corporation except upon the affirmative vote of at least 75%
    of the votes entitled to be cast by the holders of all outstanding shares
    then entitled to vote generally in the election of directors, voting
    together as a single class.
 
        SIXTH:  The business and affairs of the Corporation shall be managed by
    or under the direction of the Board of Directors, which shall consist of not
    less than three or more than twenty directors, the exact number of directors
    to be determined from time to time by resolution adopted by affirmative vote
    of a majority of the entire Board of Directors, subject to any bylaw
    requiring the affirmative vote of a larger percentage of the members of the
    Board of Directors. The Board of Directors shall be divided into three
    classes, designated Class I, Class II and Class III. Class I shall consist
    of four directors, and each of Class II and Class III shall consist of five
    directors. Class I directors shall be initially elected for a term expiring
    at the first annual meeting of stockholders of the Corporation following the
    date hereof, Class II directors shall be initially elected for a term
    expiring at the second annual meeting of stockholders of the Corporation
    following the date hereof, and Class III directors shall be initially
    elected for a term expiring at the third annual meeting of stockholders of
    the Corporation following the date hereof. At each annual meeting of
    stockholders following the date
 
                                      D-2
<PAGE>
    hereof, successors to the class of directors whose term expires at that
    annual meeting shall be elected for a three year term. If the number of
    directors is changed, any increase or decrease shall be apportioned among
    the classes so as to maintain the number of directors in each class as
    nearly equal as possible, and any additional director of any class elected
    to fill a vacancy resulting from an increase in such class shall hold office
    for a term that shall coincide with the remaining term of that class, but in
    no case will a decrease in the number of directors shorten the term of any
    incumbent director. A director shall hold office until the annual meeting
    for the year in which his term expires and until his successor shall be
    elected and shall qualify, subject, however, prior to death, resignation,
    retirement, disqualification or removal from office. Any vacancy on the
    Board of Directors that results from an increase in the number of directors
    and any other vacancy may only be filled by a majority of the directors then
    in office, even if less than a quorum, or by a sole remaining director. Any
    director elected to fill a vacancy not resulting from an increase in the
    number of directors shall have the same remaining term as that of his
    predecessor.
 
        Notwithstanding the foregoing, whenever the holders of any one or more
    series of Preferred Stock issued by the Corporation shall have the right,
    voting separately by class or series, to elect directors at an annual or
    special meeting of stockholders, the election, term of office, removal,
    filling of vacancies and other features of such directorships shall be
    governed by the terms of this Restated Certificate of Incorporation
    applicable thereto (including the resolutions of the Board of Directors
    pursuant to Article FOURTH hereof), and such Directors so elected shall not
    be divided into classes pursuant to this Article SIXTH unless expressly
    provided by such terms.
 
        SEVENTH:  Special meetings of the stockholders of the Corporation, for
    any purpose or purposes, may only be called at any time by a majority of the
    entire Board of Directors or by either the Chairman or the President of the
    Corporation.
 
        EIGHTH:  No stockholder action may be taken except at an annual or
    special meeting of stockholders of the Corporation and stockholders of the
    corporation may not take any action by written consent in lieu of a meeting.
 
        NINTH:  A.  In addition to any affirmative vote required by law or this
    Restated Certificate of Incorporation (including any resolutions of the
    Board of Directors pursuant to Article FOURTH hereof) or the Bylaws of the
    Corporation, and except as otherwise expressly provided in Section B of this
    Article NINTH, a Business Combination (as hereinafter defined) with, or
    proposed by or on behalf of, any Interested Stockholder (as hereinafter
    defined) or any Affiliate or Associate (as hereinafter defined) of any
    Interested Stockholder or any person who thereafter would be an Affiliate or
    Associate of such Interested Stockholder shall, except as otherwise
    prohibited by applicable law, require the affirmative vote of (i) not less
    than 75% of the votes entitled to be cast by the holders of all of the then
    outstanding shares of Voting Stock (as hereinafter defined), voting together
    as a single class and (ii) not less than a majority of the votes entitled to
    be cast by holders of all the then outstanding Voting Stock, voting together
    as a single class, excluding Voting Stock beneficially owned by such
    Interested Stockholder. Such affirmative vote shall be required
    notwithstanding the fact that no vote may be required, or that a lesser
    percentage or separate class vote may be specified, by law or in any
    agreement with any national securities exchange or otherwise.
 
        B.  The provisions of Section A of this Article NINTH shall not be
    applicable to any particular Business Combination, and such Business
    Combination shall require only such affirmative vote, if any, as is required
    by law or by any other provision of this Restated Certification of
    Incorporation (including any resolutions of the Board of Directors pursuant
    to Article FOURTH hereof) or the Bylaws of the Corporation, or any agreement
    with any national securities exchange, if all the conditions specified in
    either of the following Paragraphs 1 or 2 are met or, in the case of
    Business
 
                                      D-3
<PAGE>
    Combination not involving the payment of consideration to the holders of the
    Corporation's outstanding Capital Stock (as hereinafter defined), if the
    condition specified in the following Paragraph 1 is met:
 
           1.  The Business Combination shall have been approved, either
       specifically or as a transaction which is in an approved category of
       transactions, by a majority (whether such approval is made prior to or
       subsequent to the acquisition of, or announcement or public disclosure of
       the intention to acquire, beneficial ownership of the Voting Stock that
       caused the Interested Stockholder to become an Interested Stockholder) of
       the Continuing Directors (as hereinafter defined).
 
           2.  All of the following conditions shall have been met:
 
               a.  The aggregate amount of cash and the Fair Market Value (as
           hereinafter defined), as of the date of the consummation of the
           Business Combination of consideration other than cash to be received
           per share by holders of Common Stock in such Business Combination
           shall be at least equal to the highest amount determined under
           clauses (i) and (ii) below:
 
                    (i) (if applicable) the highest per share price (including
               any brokerage commissions, transfer taxes and soliciting dealers'
               fees) paid by or on behalf of the Interested Stockholder for any
               share of Common Stock in connection with the acquisition by the
               Interested Stockholder of beneficial ownership of shares of
               Common Stock (x) within the two-year period immediately prior to
               the first public announcement of the proposed Business
               Combination (the "Announcement Date") or (y) in the transaction
               in which it became an Interested Stockholder, whichever is
               higher, in either case as adjusted for any subsequent stock
               split, stock dividend, subdivision or reclassification with
               respect to common stock; and
 
                    (ii) the Fair Market Value per share of Common Stock on the
               Announcement Date or on the date on which the Interested
               Stockholder became an Interested Stockholder (the "Determination
               Date"), whichever is higher.
 
               b.  The aggregate amount of cash and the Fair Market Value, as of
           the date of the consummation of the Business Combination, of
           consideration other than cash to be received per share by holders of
           shares of each class or series of outstanding Capital Stock, other
           than Common Stock, shall be at least equal to the highest amount
           determined under clauses (i), (ii) and (iii) below:
 
                    (i) (if applicable) the highest per share price (including
               any brokerage commissions, transfer taxes and soliciting dealers'
               fees) paid by or on behalf of the Interested Stockholder for any
               share of such class or series of Capital Stock in connection with
               the acquisition by the Interested Stockholder of beneficial
               ownership of shares of such class or series of Capital Stock (x)
               within the two-year period immediately prior to the Announcement
               Date or (y) in the transaction in which it became an Interested
               Stockholder, whichever is higher, in either case as adjusted for
               any subsequent stock split, stock dividend, subdivision or
               reclassification with respect to such class or series of Capital
               Stock;
 
                    (ii) the Fair Market Value per share of such class or series
               of Capital Stock on the Announcement Date or on the Determination
               Date, whichever is higher, as adjusted for any subsequent stock
               split, stock dividend, subdivision or reclassification with
               respect to such class or series of Capital Stock; and
 
                   (iii) (if applicable) the highest preferential amount per
               share to which the holders of shares of such class or series of
               Capital Stock would be entitled in the event of any
 
                                      D-4
<PAGE>
               voluntary or involuntary liquidation, dissolution or winding up
               of the affairs of the Corporation regardless of whether the
               Business Combination to be consummated constitutes such an event.
 
               The provisions of this Paragraph 2(b) shall be required to be met
           with respect to every class or series of outstanding Capital Stock,
           whether or not the Interested Stockholder has previously acquired
           beneficial ownership of any shares of a particular class or series of
           Capital Stock.
 
               c.  The consideration to be received by holders of a particular
           class or series of outstanding Capital Stock shall be in cash or in
           the same form as previously has been paid by or on behalf of the
           Interested Stockholder in connection with its direct or indirect
           acquisition of beneficial ownership of shares of such class or series
           of Capital Stock. If the consideration so paid for shares of any
           class or series of Capital Stock varied as to form, the form of
           consideration for such class or series of Capital Stock shall be
           either cash or the form used to acquire beneficial ownership of the
           largest number of shares of such class or series of Capital Stock
           previously acquired by the Interested Stockholder.
 
               d.  After the Determination Date and prior to the consummation of
           such Business Combination: (i) except as approved by a majority of
           the Continuing Directors, there shall have been no failure to declare
           and pay at the regular date therefor any full periodic dividends
           (whether or not cumulative) payable in accordance with the terms of
           any outstanding Capital Stock; (ii) there shall have been no
           reduction in the annual rate of dividends paid on the Common Stock
           (except as necessary to reflect any stock split, stock dividend or
           subdivision of the Common Stock), except as approved by a majority of
           the Continuing Directors; (iii) there shall have been an increase in
           the annual rate of dividends paid on the Common Stock as necessary to
           reflect any reclassification (including any reverse stock split),
           recapitalization, reorganization or any similar transaction that has
           the effect of reducing the number of outstanding shares of Common
           Stock, unless the failure so to increase such annual rate is approved
           by a majority of the Continuing Directors; and (iv) such Interested
           Stockholders shall not have become the beneficial owner of any
           additional shares of Capital Stock except as part of the transaction
           that results in such Interested Stockholder becoming an Interested
           Stockholder and except in a transaction that, after giving effect
           thereto, would not result in any increase in the Interested
           Stockholder's percentage beneficial ownership of any class or series
           of Capital Stock.
 
               e.  A proxy or information statement describing the proposed
           Business Combination and complying with the requirements of the
           Securities Exchange Act of 1934 and the rules and regulations
           thereunder (the "Act") (or any subsequent provisions replacing such
           Act, rules or regulations) shall be mailed to all stockholders of the
           Corporation at least 30 days prior to the consummation of such
           Business Combination (whether or not such proxy or information
           statement is required to be mailed pursuant to such Act or subsequent
           provisions). The proxy or information statement shall contain on the
           first page thereof, in a prominent place, such statement, if any, as
           to the advisability (or inadvisability) of the Business Combination
           that the Continuing Directors, or any of them, may choose to make
           and, if deemed advisable by a majority of the Continuing Directors,
           the opinion of an investment banking firm selected by a majority of
           the Continuing Directors as to the fairness (or not) of the terms of
           the Business Combination from a financial point of view to the
           holders of the outstanding shares of Capital Stock other than the
           Interested Stockholder and its Affiliates or Associates, such
           investment banking firm to be paid a reasonable fee for its services
           by the Corporation.
 
                                      D-5
<PAGE>
               f.  Such Interested Stockholder shall not have made any major
           change in the Corporation's business or equity capital structure
           without the approval of a majority of the Continuing Directors.
 
               g.  After the Determination Date, such Interested Stockholder
           shall not have received the benefit, directly or indirectly (except
           proportionately as a shareholder), of any loans, advances,
           guarantees, pledges or other financial assistance or any tax credits
           or other tax advantages provided by the Corporation, whether in
           anticipation of or in connection with such Business Combination or
           otherwise.
 
        C.  The following definitions shall apply with respect to this article
    NINTH:
 
             1. The term "Business Combination" shall mean:
 
               a.  any merger or consolidation of the Corporation or any
           Subsidiary (as hereinafter defined) with (i) any Interested
           Stockholder or (ii) any other company (whether or not itself an
           Interested Stockholder) which is, or after such merger or
           consolidation would be, an Affiliate or Associate of an Interested
           Stockholder; or
 
               b.  any sale, lease, exchange, mortgage, pledge, transfer or
           other disposition or security arrangement, investment, loan, advance,
           guarantee, agreement to purchase or sell, agreement to pay, extension
           of credit, joint venture participation or other arrangement (in one
           transaction or a series of transactions) with or for the benefit of
           any Interested Stockholder or any Affiliate or Associate of any
           Interested Stockholder involving any assets, securities or
           commitments of the Corporation, any Subsidiary or any Interested
           Stockholder or any Affiliate or Associate of any Interested
           Stockholder which (except for any arrangement, whether as employee or
           consultant or otherwise, other than as director, pursuant to which
           any Interested Stockholder or any Affiliate or Associate thereof
           shall, directly or indirectly, have any control over or
           responsibility for the management of any aspect of the business or
           affairs of the Corporation, with respect to which arrangement the
           value test set forth below shall not apply), together with all other
           such arrangements (including all contemplated future events), has an
           aggregate Fair Market Value and/or involves aggregate commitments of
           $100,000,000 or more or constitutes more than 5 percent of the book
           value of the total assets (in the case of transactions involving
           assets or commitments other than capital stock) or 5 percent of the
           stockholders' equity (in the case of transactions in capital stock)
           of the entity in question (the "Substantial Part"), as reflected in
           the most recent fiscal year-end consolidated balance sheet of such
           entity existing at the time the stockholders of the Corporation would
           be required to approve or authorize the Business Combination
           involving the assets, securities and/or commitments constituting any
           Substantial Part; provided, that if stockholders' equity is negative,
           the fair market value of the outstanding Capital Stock at the date of
           such balance sheet shall be used in lieu thereof in determining if a
           transaction involves a Substantial Part; or
 
               c.  the adoption of any plan or proposal for the liquidation or
           dissolution of the Corporation or for any amendment to the
           Corporation's Bylaws; or
 
               d.  any reclassification of securities (including any reverse
           stock split), or recapitalization of the Corporation, or any merger
           or consolidation of the Corporation with any of its Subsidiaries or
           any other transaction (whether or not with or otherwise involving an
           Interested Stockholder) that has the effect, directly or indirectly,
           of increasing the proportionate share of any class or series of
           Capital Stock, or any securities convertible into Capital Stock or
           into equity securities of any Subsidiary, that is beneficially owned
           by any Interested Stockholder or any affiliate or Associate of any
           Interested Stockholder; or
 
                                      D-6
<PAGE>
               e.  any agreement, contract or other arrangement providing for
           any one or more of the actions specified in the foregoing clauses (a)
           to (d).
 
             2. The term "Voting Stock" shall mean all Capital Stock which by
       its terms may be voted on all matters submitted to stockholders of the
       Corporation generally.
 
             3. The term "person" shall mean any individual, firm, company or
       other entity and shall include any group comprised of any person and any
       other person with whom such person or any Affiliate or Associate of such
       person has any agreement, arrangement or understanding, directly or
       indirectly, for the purpose of acquiring, holding, voting or disposing of
       Capital Stock.
 
             4. The term "Interested Stockholder" shall mean any person (other
       than (i) the Corporation or any Subsidiary, any profit-sharing, employee
       stock ownership or other employee benefit plan of the Corporation or any
       Subsidiary or any trustee of or fiduciary with respect to any such plan
       when acting in such capacity and (ii) Doubletree Corporation, Promus
       Acquisition Corp. and any Subsidiary thereof) who (a) is, or has
       announced or publicly disclosed a plan or intention to become, the
       beneficial owner of Voting Stock representing ten percent or more of the
       votes entitled to be cast by the holders of all the then outstanding
       shares of Voting Stock; or (b) is an Affiliate or Associate of the
       Corporation and at any time within the two-year period immediately prior
       to the date in question was the beneficial owner of Voting Stock
       representing ten percent or more of the votes entitled to be cast by the
       holders of all the then outstanding shares of Voting Stock; or (c) is an
       assignee of or has otherwise succeeded to any Voting Stock which was at
       any time within the two-year period immediately prior to the date in
       question beneficially owned by an Interested Stockholder, if such
       assignment or succession shall have occurred in the course of a
       transaction or series of transactions not involving a public offering
       within the meaning of the Securities Act of 1933, as amended.
 
             5. A person shall be a "beneficial owner" of any Capital Stock (a)
       which such person or any of its Affiliates or Associates beneficially
       owns, directly or indirectly; (b) which such person or any of its
       Affiliates or Associates has, directly or indirectly, (i) the right to
       acquire (whether such right is exercisable immediately or subject only to
       the passage of time), pursuant to any agreement, arrangement or
       understanding or upon the exercise of conversion rights, exchange rights,
       warrants or options, or otherwise, or (ii) the right to vote pursuant to
       any agreement, arrangement or understanding (but neither such person nor
       any such Affiliate or Associate shall be deemed to be the beneficial
       owner of any shares of Voting Stock solely by reason of a revocable proxy
       granted for a particular meeting of stockholders, pursuant to a public
       solicitation of proxies for such meeting, and with respect to which
       shares neither such person nor any such Affiliate or Associate is
       otherwise deemed the beneficial owner); or (c) which is beneficially
       owned, directly or indirectly, by any other person with which such person
       or any of its Affiliates or Associates has any agreement, arrangement or
       understanding for the purpose of acquiring, holding, voting (except to
       the extent contemplated by the parenthetical clause in Section
       C.5(b)(ii)) or disposing of any shares of Capital Stock; provided that:
       (x) no director or officer of the Corporation (nor any Affiliate or
       Associate of any such director or officer) shall, solely by reason of any
       or all of such directors or officers acting in their capacities as such,
       be deemed the "beneficial owner" of any shares of Capital Stock that are
       beneficially owned by any other such director or officer; (y) in the case
       of any employee stock ownership or similar plan of the Corporation or of
       any Subsidiary in which the beneficiaries thereof possess the right to
       vote the shares of Voting Stock held by such plan, no such plan nor any
       trustee with respect thereto (nor any Affiliate or Associate of such
       trustee), solely by reason of such capacity of such trustee, shall be
       deemed the "beneficial owner" of the shares of Voting Stock held under
       such plan; and (z) no person shall be deemed the "beneficial owner" of
       any shares of Voting Stock held in any voting trust, employee stock
       ownership plan or any similar plan or trust if such person does not
       possess the right to vote such shares. For the purposes of determining
       whether a person is an
 
                                      D-7
<PAGE>
       Interested Stockholder pursuant to Paragraph 4 of this section C, the
       number of shares of Capital Stock deemed to be outstanding shall include
       shares deemed beneficially owned by such person through application of
       this Paragraph 5 of Section C, but shall not include any other shares of
       Capital Stock that may be issuable pursuant to any agreement, arrangement
       or understanding, or upon exercise of conversion rights, warrants or
       options, or otherwise. Notwithstanding the foregoing, for purposes of
       this Article NINTH, a person shall not be deemed a "beneficial owner" of
       any Capital Stock which such person has the right to acquire upon
       exercise of the Rights issued pursuant to the Parent Rights Agreement,
       dated as of            , 1997, between the Corporation and
       (including any successor rights plan thereto, the "Rights Agreement"), if
       such person would not be deemed the beneficial owner of such Capital
       Stock under the terms of such Rights Agreement.
 
             6. The terms "Affiliate" and "Associate" shall have the respective
       meanings ascribed to such terms in Rule 12b-2 under the Act as in effect
       on the date that this Article NINTH is approved by the Board (the term
       "registrant" in said Rule 12b-2 meaning in this case the Corporation).
 
             7. The term "Subsidiary" means any company of which a majority of
       any class of equity security is beneficially owned by the Corporation;
       provided, however, that for the purposes of the definition of Interested
       Stockholder set forth in Paragraph 4 of this Section C, the term
       "Subsidiary" shall mean only a company of which a majority of each class
       of equity security is beneficially owned by the Corporation.
 
             8. The term "Continuing Director" means any member of the Board of
       Directors of the Corporation (the "Board of Directors"), while such
       person is a member of the Board of Directors, who is not an Affiliate or
       Associate or representative of the Interested Stockholder and was a
       member of the Board of Directors prior to the time that the Interested
       Stockholder became an Interested Stockholder, and any director who is
       thereafter chosen to fill any vacancy or newly-created directorship on
       the Board of Directors or who is elected and who, in either event, is not
       an Affiliate or Associate or representative of the Interested Stockholder
       and, in connection with such person's initial assumption of office, is
       recommended for appointment or election by a majority of the Continuing
       Directors then on the Board.
 
             9. The term "Fair Market Value" means (a) in the case of cash, the
       amount of such cash; (b) in the case of stock the highest closing sales
       price during the 30-day period immediately preceding the date in question
       of a share of such stock on the Composite Tape for New York Stock
       Exchange--Listed Stocks, or, if such stock is not quoted on the Composite
       Tape, on the New York Stock Exchange, or, if such stock is not listed on
       such Exchange, on the principal United States securities exchange
       registered under the Act on which such stock is listed, or, if such stock
       is not listed on any such exchange, the highest closing sales price or
       bid quotation with respect to a share of such stock during the 30-day
       period preceding the date in question on the NASDAQ National Market or
       any similar system then in use, or if no such quotations are available,
       the fair market value on the date in question of a share of such stock as
       determined by a majority of the Continuing Directors in good faith; and
       (c) in the case of property other than cash or stock, the fair market
       value of such property on the date in question as determined in good
       faith by a majority of the Continuing Directors.
 
            10. In the event of any Business Combination in which the
       Corporation survives, the phrase "consideration other than cash to be
       received" as used in Paragraphs 2.a and 2.b of Section B of this Article
       NINTH shall include the shares of Common Stock and/or the shares of any
       other class or series of Capital Stock retained by the holders of such
       shares.
 
        D.  A majority of the Continuing Directors shall have the power and duty
    to determine for the purposes of this Article NINTH, on the basis of
    information known to them after reasonable inquiry,
 
                                      D-8
<PAGE>
    all questions arising under this Article NINTH including, without
    limitation, (a) whether a person is an Interested Stockholder, (b) the
    number of shares of Capital Stock or other securities beneficially owned by
    any person, (c) whether a person is an Affiliate or Associate of another,
    (d) whether a Proposed Action (as hereinafter defined) is with, or proposed
    by, or on behalf of, an Interested Stockholder or an Affiliate or Associate
    of an Interested Stockholder, (e) whether the assets that are the subject of
    any Business Combination have, or the consideration to be received for the
    issuance or transfer of securities by the Corporation or any Subsidiary in
    any Business Combination has, an aggregate Fair Market Value of $100,000,000
    or more, (f) whether the assets or securities that are the subject of any
    Business Combination constitute a Substantial Part, and (g) whether the
    applicable conditions set forth in paragraph 2 of Section B of this Article
    NINTH have been met with respect to any Business Combination. Any such
    determination made good faith shall be binding and conclusive on all
    parties.
 
        E.  Nothing contained in this Article NINTH shall be construed to
    relieve any Interested Stockholder from any fiduciary obligation imposed by
    law.
 
        F.  The fact that any Business combination complies with the provisions
    of Section B of this Article NINTH shall not be construed to impose any
    fiduciary duty, obligation or responsibility on the Board of Directors, or
    any member thereof, to approve such Business Combination or recommend its
    adoption or approval to the stockholders of the Corporation, nor shall such
    compliance limit, prohibit or otherwise restrict in any manner the Board of
    Directors, or any member thereof, with respect to evaluations of or actions
    and responses taken with respect to such Business Combination.
 
        G.  For the purpose of this Article NINTH, a Business Combination or any
    proposal to amend, repeal or adopt any provision of this Restated
    Certificate of Incorporation inconsistent with this Article NINTH
    (collectively, "Proposed Action") is presumed to have been proposed by, or
    on behalf of, an Interested Stockholder or a person who thereafter would
    become such if (1) after the Interested Stockholder became such, the
    Proposed Action is proposed following the election of any director of the
    Corporation who with respect to such Interested Stockholder, would not
    qualify to serve as a Continuing Director or (2) such Interested
    Stockholder, Affiliate, Associate or person votes for or consents to the
    adoption of any such Proposed Action, unless as to such Interested
    Stockholder, Affiliate, Associate or person, a majority of the Continuing
    Directors makes a good faith determination that such Proposed Action is not
    proposed by or on behalf of such Interested Stockholder, Affiliate,
    Associate or person, based on information known to them after reasonable
    inquiry.
 
        H.  Notwithstanding any other provisions of this Restated Certificate of
    Incorporation or the Bylaws of the Corporation (and notwithstanding the fact
    that a lesser percentage or separate class vote may be specified by law,
    this Restated Certificate of Incorporation or the Bylaws of the
    Corporation), or any proposal to amend, repeal or adopt any provision of
    this Restated Certificate of Incorporation inconsistent with this Article
    NINTH which is proposed by or on behalf of an Interested Stockholder or an
    Affiliate or Associate of an Interested Stockholder shall require the
    affirmative vote of (i) the holders of not less than 75% of the votes
    entitled to be cast by the holders of all the then outstanding shares of
    Voting Stock, voting together as a single class, and (ii) the holders of not
    less than a majority of the votes entitled to be cast by the holders of the
    then outstanding shares of Voting Stock, voting together as a single class,
    excluding Voting Stock beneficially owned by such Interested Stockholder,
    provided, however, that this Section H shall not apply to, and such vote
    shall not be required for, any amendment, repeal or adoption unanimously
    recommended by the Board of Directors if all of such directors are persons
    who would be eligible to serve as Continuing Directors within the meaning of
    Section C, Paragraph 8 of this Article NINTH.
 
        TENTH:  A.  Subject to Section C of this Article TENTH, the Corporation
    shall indemnify any person who was or is a party or is threatened to be made
    a party to any threatened, pending or completed action, suit or proceeding,
    whether civil, criminal, administrative or investigative (other
 
                                      D-9
<PAGE>
    than an action by or in the right of the Corporation) by reason of the fact
    that he is or was a director or officer of the Corporation, or is or was
    serving at the request of the Corporation as a director or officer of
    another corporation, partnership, joint venture, trust or other enterprise,
    against expenses (including attorneys' fees), judgments, fines and amounts
    paid in settlement actually and reasonably incurred by him in connection
    with such action, suit or proceeding if he acted in good faith and in a
    manner he reasonably believed to be in or not opposed to the best interests
    of the Corporation, and, with respect to any criminal action or proceeding,
    had no reasonable cause to believe his conduct was unlawful. The termination
    of any action, suit or proceeding by judgment, order, settlement,
    conviction, or upon a plea of nolo contendere or its equivalent, shall not,
    of itself, create a presumption that the person did not act in good faith
    and in a manner which he reasonably believed to be in or not opposed to the
    best interest of the Corporation, or, with respect to any criminal action or
    proceeding, had reasonable cause to believe his conduct was unlawful.
 
        B.  Subject to Section C of this Article TENTH, the Corporation shall
    indemnify any person who was or is a party or is threatened to be made a
    party to any threatened, pending or completed action or suit by or in the
    right of the Corporation to procure a judgment in its favor by reason of the
    fact that he is or was a director or officer of the Corporation, or is or
    was serving at the request of the Corporation as a director or officer of
    another corporation, partnership, joint venture, trust or other enterprise
    against expenses (including attorneys' fees) actually and reasonably
    incurred by him in connection with the defense or settlement of such action
    or suit if he acted in good faith and in a manner he reasonably believed to
    be in or not opposed to the best interest of the Corporation; except that no
    indemnification shall be made in respect of any claim, issue or matter as to
    which such person shall have been adjudged to be liable to the Corporation
    unless and only to the extent that the Court of Chancery or the court in
    which such action or suit was brought shall determine upon application that,
    despite the adjudication of liability but in view of all the circumstances
    of the case, such person is fairly and reasonably entitled to indemnity for
    such expenses which the Court of Chancery or such other court shall deem
    proper.
 
        C.  Any indemnification under this Article TENTH (unless ordered by a
    court) shall be made by the Corporation only as authorized in the specific
    case upon a determination that indemnification of the director or officer is
    proper in the circumstances because he has met the applicable standard of
    conduct set forth in Section A or Section B of this Article TENTH, as the
    case may be. Such determination shall be made (i) by a majority vote of
    directors who were not parties to such action, suit or proceeding, even
    though less than a quorum, or (ii) by a committee of such disinterested
    directors designated by a majority vote of such disinterested directors,
    even though less than a quorum, or (iii) if there are no such disinterested
    directors or if such disinterested directors so directs, by independent
    legal counsel in a written opinion, or (iv) by the stockholders. To the
    extent, however, that a director or officer of the Corporation has been
    successful on the merits or otherwise in defense of any action, suit or
    proceeding described in Section A or Section B of this Article TENTH, or in
    defense of any claim, issue or matter therein, he shall be indemnified
    against expenses (including attorneys' fees) actually and reasonably
    incurred by him in connection therewith, without the necessity of
    authorization in the specific case.
 
        D. For purposes of any determination under Section C of this Article
    TENTH, a person shall be deemed to have acted in good faith and in a manner
    he reasonably believed to be in or not opposed to the best interest of the
    Corporation, and, with respect to any criminal action or proceeding, to have
    had no reasonable cause to believe his conduct was unlawful, if his action
    is based on the records or books of account of the Corporation or another
    enterprise, or on information supplied to him by the officers of the
    Corporation or another enterprise in the course of their duties, or on the
    advice of legal counsel for the Corporation or another enterprise or on
    information or records given or reports made to the Corporation or another
    enterprise by an independent certified public accountant or by an appraiser
    or other expert selected with reasonable care by the Corporation or another
    enterprise. The
 
                                      D-10
<PAGE>
    term "another enterprise" as used in this Section D of Article TENTH shall
    mean any other corporation or any partnership, joint venture, trust or other
    enterprise of which such person is or was serving at the request of the
    Corporation as a director or officer. The provisions of this Section D shall
    not be deemed to be exclusive or to limit in any way the circumstances in
    which a person may be deemed to have met the applicable standard of conduct
    set forth in Sections A or B of this Article TENTH as the case may be.
 
        E.  Notwithstanding any contrary determination in the specific case
    under Section C of this Article TENTH, and notwithstanding the absence of
    any determination thereunder, any director or officer may apply to any court
    of competent jurisdiction in the State of Delaware for indemnification to
    the extent otherwise permissible under Sections A and B of this Article
    TENTH. The basis of such indemnification by a court shall be a determination
    by such court that indemnification of the director or officer is proper in
    the circumstances because he has met the applicable standards of conduct set
    forth in Sections A or B of this Article TENTH, as the case may be. Notice
    of any application for indemnification pursuant to this Section E of Article
    TENTH shall be given to the Corporation promptly upon the filing of such
    application.
 
        F.  Expenses incurred by a director or officer of the Corporation in
    defending or investigating a threatened or pending action, suit or
    proceeding shall be paid by the Corporation in advance of the final
    disposition of such action, suit or proceeding upon receipt of an
    undertaking by or on behalf of the director or officer to repay such amount
    if it shall ultimately be determined that he is not entitled to be
    indemnified by the Corporation as authorized in this Article TENTH.
 
        G. The indemnification and advancement of expenses provided by this
    Article TENTH shall not be deemed exclusive of any other rights to which any
    person seeking indemnification or advancement of expenses may be entitled
    under any Bylaw, agreement, contract, vote of stockholders or disinterested
    directors or pursuant to the direction (howsoever embodied) of any court of
    competent jurisdiction or otherwise, both as to action in his official
    capacity and as to action in another capacity while holding such office, it
    being the policy of the Corporation that indemnification of, and advancement
    of expenses to, the persons specified in Sections A and B of this Article
    TENTH shall be made to the fullest extent permitted by law. The provisions
    of this Article TENTH shall not be deemed to preclude the indemnification
    of, and advancement of expenses to, any person who is not specified in
    Sections A or B of this Article TENTH but whom the Corporation has the power
    or obligation to indemnify under the provisions of the General Corporation
    Law of the State of Delaware, or otherwise. The indemnification provided by
    this Article TENTH shall continue as to a person who has ceased to be a
    director or officer and shall inure to the benefit of the heirs, executors
    and administrators of such person.
 
        H. The Corporation may purchase and maintain insurance on behalf of any
    person who is or was a director or officer of the Corporation, or, while a
    director or officer of the Corporation, is or was serving at the request of
    the Corporation as a director or officer of another corporation,
    partnership, joint venture, trust or other enterprise against any liability
    asserted against him and incurred by him in any such capacity, or arising
    out of his status as such, whether or not the Corporation would have the
    power or the obligation to indemnify him against such liability under the
    provisions of this Article TENTH.
 
        I.  For purposes of this Article TENTH, reference to "the Corporation"
    shall include, in addition to the resulting corporation, any constituent
    corporation (including any constituent of a constituent) absorbed in a
    consolidation or merger which, if its separate existence had continued,
    would have had power and authority to indemnify its directors or officers,
    so that any person who is or was a director or officer of such constituent
    corporation, or is or was serving at the request of such constituent
    corporation as a director or officer of another corporation, partnership,
    joint venture, trust or other enterprise, shall stand in the same position
    under the provisions of this Article TENTH with
 
                                      D-11
<PAGE>
    respect to the resulting or surviving corporation as he would have with
    respect to such constituent corporation if its separate existence had
    continued.
 
        ELEVENTH:  Whenever a compromise or arrangement is proposed between this
    Corporation and its creditors or any class of them and/or between this
    Corporation and its stockholders or any class of them, any court of
    equitable jurisdiction within the State of Delaware may, on the application
    in a summary way of this Corporation or of any creditor or stockholder
    thereof or on the application of any receiver or receivers appointed for
    this Corporation under the provisions of Section 291 of the GCL or on the
    application of trustees in dissolution or of any receiver or receivers
    appointed for this Corporation under the provisions of Section 279 of the
    GCL, order a meeting of the creditors or class of creditors, and/or of the
    stockholders or class of stockholders of this Corporation, as the case may
    be, to be summoned in such manner as the said court directs. If a majority
    in number representing three-fourths in value of the creditors or class of
    creditors, and/or of the stockholders or class of stockholders of this
    Corporation, as the case may be, agree to any compromise or arrangement and
    to any reorganization of this Corporation as a consequence of such
    compromise or arrangement, the said compromise or arrangement and the said
    reorganization shall, if sanctioned by the court to which the said
    application has been made, be binding on all the creditors or class of
    creditors, and/or on all the stockholders or class of stockholders, of this
    Corporation, as the case may be, and also on this Corporation.
 
        TWELFTH:  The Corporation reserves the right to amend, alter, change or
    repeal any provision contained in this Restated Certificate of
    Incorporation, in the manner now or thereafter prescribed by statute, and
    all rights conferred upon stockholders herein are granted subject to this
    reservation.
 
        THIRTEENTH:  No director of this Corporation shall be personally liable
    to the Corporation or its stockholders for monetary damages for breach of
    fiduciary duty as a director, except for liability (i) for any breach of the
    director's duty of loyalty to the Corporation or its stockholders, (ii) for
    acts or omissions not in good faith or which involve intentional misconduct
    or a knowing violation of the law, (iii) under Section 174 of the GCL, or
    (iv) for any transaction from which the director derived an improper
    personal benefit. If the GCL is hereafter amended to authorize corporate
    action further limiting or eliminating the personal liability of directors,
    then the liability of each director of the Corporations shall be limited or
    eliminated to the fullest extent permitted by the GCL as so amended from
    time to time.
 
                                      D-12
<PAGE>
    IN WITNESS WHEREOF, said corporation has caused this Certificate to be
signed by Raymond E. Schultz, its Chief Executive Officer and attested by Ralph
B. Lake, its Secretary, this   day of          , 1997.
 
                                          By:
- --------------------------------------------------------------------------------
                                          Raymond E. Schultz
                                          CHIEF EXECUTIVE OFFICER
 
    ATTEST:
 
    ------------------------------------------
    Ralph B. Lake
    SECRETARY
 
                                      D-13
<PAGE>
                                                                         ANNEX E
 
                                    FORM OF
                              AMENDED AND RESTATED
                                     BYLAWS
                                       OF
                            PROMUS HOTEL CORPORATION
 
                                   ARTICLE I.
                                    OFFICES
 
    Section 1.  REGISTERED OFFICE.  The registered office of Promus Hotel
Corporation (the "Corporation") shall be at Corporation Service Company, 1013
Centre Road, in the City of Wilmington, County of New Castle, State of Delaware.
 
    Section 2.  OTHER OFFICES.  The Corporation may also have offices at such
other places both within and without the State of Delaware as the Board of
Directors of the Corporation (the "Board of Directors") may from time to time
determine.
 
                                  ARTICLE II.
                            MEETINGS OF STOCKHOLDERS
 
    Section 1.  PLACE OF MEETINGS.  Meetings of the stockholders for the
election of directors or for any other purpose shall be held at such time and
place, either within or without the State of Delaware as shall be designated
from time to time by the Board of Directors and stated in the notice of the
meeting or in a duly executed waiver of notice thereof.
 
    Section 2.  ANNUAL MEETINGS.  The annual meeting of stockholders shall be
held on the last Wednesday in April in each year or on such other date and at
such time as may be fixed by the Board of Directors and stated in the notice of
the meeting, for the purpose of electing directors and for the transaction of
only such other business as is properly brought before the meeting in accordance
with these Bylaws.
 
    Written notice of an annual meeting stating the place, date and hour of the
meeting, shall be given to each stockholder entitled to vote at such meeting not
less than ten nor more than sixty days before the date of the meeting.
 
    To be properly brought before the annual meeting, business must be either
(i) specified in the notice of annual meeting (or any supplement or amendment
thereto) given by or at the direction of the Board of Directors, (ii) otherwise
brought before the annual meeting by or at the direction of the Board of
Directors, or (iii) otherwise properly brought before the annual meeting by a
stockholder. In addition to any other applicable requirements, for business to
be properly brought before an annual meeting by a stockholder, the stockholder
must have given timely notice thereof in writing to the Secretary of the
Corporation. To be timely, a stockholder's notice must be delivered to or mailed
and received at the principal executive offices of the Corporation not less than
sixty (60) days nor more than ninety (90) days prior to the meeting; provided,
however, that in the event that less than seventy (70) days notice or prior
public disclosure of the date of the annual meeting is given or made to
stockholders, notice by a stockholder, to be timely, must be received no later
than the close of business on the tenth (10th) day following the day on which
such notice of the date of the annual meeting was mailed or such public
disclosure was made, whichever first occurs. A stockholder's notice to the
Secretary shall set forth (a) as to each matter the stockholder proposes to
bring before the annual meeting (i) a brief description of the business desired
to be brought before the annual meeting and the reasons for conducting such
business at the annual meeting, and (ii) any material interest of the
stockholder in such business, and (b) as to the
 
                                      E-1
<PAGE>
stockholder giving the notice (i) the name and record address of the stockholder
and (ii) the class, series and number of shares of capital stock of the
Corporation which are beneficially owned by the stockholder. Notwithstanding
anything in these Bylaws to the contrary, no business shall be conducted at the
annual meeting except in accordance with the procedures set forth in this
Article II, Section 2. The officer of the Corporation presiding at an annual
meeting shall, if the facts warrant, determine and declare to the annual meeting
that business was not properly brought before the annual meeting in accordance
with the provisions of this Article II, Section 2, and if such officer should so
determine, such officer shall so declare to the annual meeting and any such
business not properly brought before the meeting shall not be transacted.
 
    Section 3.  SPECIAL MEETINGS.  Unless otherwise prescribed by law or by the
Restated Certificate of Incorporation of the Corporation (the "Certificate of
Incorporation"), special meetings of stockholders, for any purpose or purposes,
may only be called by a majority of the entire Board of Directors or by the
Chairman of the Board and Chief Executive Officer or the President and Chief
Operating Officer.
 
    Written notice of a special meeting stating the place, date and hour of the
meeting, shall be given to each stockholder entitled to vote at such meeting not
less than ten nor more than sixty days before the date of the meeting.
 
    Section 4.  QUORUM.  Except as otherwise provided by law or by the
Certificate of Incorporation, the holders of a majority of the capital stock
issued and outstanding and entitled to vote thereat, present in person or
represented by proxy, shall constitute a quorum at all meetings of the
stockholders for the transaction of business. If, however, such quorum shall not
be present or represented at any meeting of the stockholders, the holders of a
majority of the votes entitled to be cast by the stockholders entitled to vote
thereat, present in person or represented by proxy may adjourn the meeting from
time to time, without notice other than announcement at the meeting, until a
quorum shall be present or represented by proxy. At such adjourned meeting at
which a quorum shall be present or represented, any business may be transacted
which might have been transacted at the meeting as originally noticed. If the
adjournment is for more than thirty days, or if after the adjournment a new
record date is fixed for the adjourned meeting, a notice of the adjourned
meeting shall be given to each stockholder entitled to vote at the meeting.
 
    Section 5.  VOTING.  Unless otherwise required by law, the Certificate of
Incorporation, the rules or regulations of any stock exchange applicable to the
Corporation or these Bylaws, any question (other than the election of directors)
brought before any meeting of stockholders shall be decided by the vote of the
holders of a majority of the stock represented and entitled to vote thereat. At
all meetings of stockholders for the election of directors, a plurality of the
votes cast shall be sufficient to elect. Each stockholder represented at a
meeting of stockholders shall be entitled to cast one vote for each share of the
capital stock entitled to vote thereat held by such stockholder, unless
otherwise provided by the Certificate of Incorporation. Such votes may be cast
in person or by proxy but no proxy shall be voted after three years from its
date, unless such proxy provides for a longer period. The Board of Directors, in
its discretion, or the officer of the Corporation presiding at a meeting of
stockholders, in his discretion, may require that any votes cast at such meeting
shall be cast by written ballot.
 
    Section 6.  LIST OF STOCKHOLDERS ENTITLED TO VOTE.  The officer of the
Corporation who has charge of the stock ledger of the Corporation shall prepare
and make, at least ten days before every meeting of stockholders, a complete
list of the stockholders entitled to vote at the meeting, arranged in
alphabetical order, and showing the address of each stockholder and the number
of shares registered in the name of each stockholder. Such list shall be open to
the examination of any stockholder, for any purpose germane to the meeting,
during ordinary business hours, for a period of at least ten days prior to the
meeting, either at a place within the city where the meeting is to be held,
which place shall be specified in the notice of the meeting, or, if not so
specified, at the place where the meeting is to be held. The list shall also be
produced and kept at the time and place of the meeting during the whole time
thereof, and may be inspected by any stockholder of the Corporation who is
present.
 
                                      E-2
<PAGE>
    Section 7.  STOCK LEDGER.  The stock ledger of the Corporation shall be the
only evidence as to who are the stockholders entitled to examine the stock
ledger, the list required by Section 6 of this Article II or the books of the
Corporation, or to vote in person or by proxy at any meeting of stockholders.
 
                                  ARTICLE III.
                                   DIRECTORS
 
    Section 1.  NUMBER OF DIRECTORS; QUALIFICATIONS.  The total number of
persons serving on the Board of Directors of the Corporation shall be fourteen,
half of whom shall be Doubletree Directors and half of whom shall be Promus
Directors (as such terms are defined below), all of which Doubletree Directors
and Promus Directors shall be spread as evenly as possible among the
Corporation's three classes of Directors. Until December 31, 2002, (a) the Board
of Directors of the Corporation and each Committee of the Board of Directors of
the Corporation as constituted following each election of Directors shall
consist of an equal number of Doubletree Directors and Promus Directors, and (b)
the size of the Board of Directors of the Corporation and each Committee of the
Board of Directors of the Corporation shall not be increased unless such
increase is approved by 75% of the members. If, at any time during the period
referenced in the immediately preceding sentence, the number of Doubletree
Directors and Promus Directors serving, or that would be serving following the
next stockholders' meeting at which Directors are to be elected, as Directors of
the Corporation or as members of any Committee of the Board of Directors of the
Corporation, would not be equal, then, subject to the fiduciary duties of the
Directors of the Corporation, the Board of Directors and the Nominating
Committee thereof shall nominate for election at the next stockholders' meeting
at which Directors are to be elected, such person or persons as may be requested
by the remaining Doubletree Directors (if the number of Doubletree Directors is,
or would otherwise become, less than the number of Promus Directors) or by the
remaining Promus Directors (if the number of Promus Directors is, or would
otherwise become, less than the number of Doubletree Directors) to ensure that
there shall be an equal number of Doubletree Directors and Promus Directors. The
provisions of the preceding sentence shall not apply in respect of any
stockholders' meeting which takes place after December 31, 2002. The term
"Doubletree Director" means (i) any person who was selected by the Board of
Directors of Doubletree Corporation, a Delaware corporation, to serve as a
Director of the Corporation and (ii) any person who becomes a Director of the
Corporation pursuant to the second preceding sentence and who is designated by
the Doubletree Directors; and the term "Promus Director" means (i) any person
who was selected by the Board of Directors of Promus Hotel Corporation, a
Delaware corporation, to serve as a Director of the Corporation and (ii) any
person who becomes a Director of the Corporation pursuant to the second
preceding sentence and who is designated by the Promus Directors. The provisions
of this Article III, Section 1 may be amended only with the approval of 75% of
the members of the Board of Directors of the Corporation.
 
    Section 2.  NOMINATION OF DIRECTORS.  Nominations of persons for election to
the Board of Directors of the Corporation at a meeting of stockholders of the
Corporation may be made at such meeting by or at the direction of the Board of
Directors, by any committee or persons appointed by the Board of Directors or by
any stockholder of the Corporation entitled to vote for the election of
directors at the meeting who complies with the notice procedures set forth in
this Article III, Section 2. Such nominations by any stockholder shall be made
pursuant to timely notice in writing to the Secretary of the Corporation. To be
timely, a stockholder's notice shall be delivered to or mailed and received at
the principal executive offices of the Corporation not less than sixty (60) days
nor more than ninety (90) days prior to the meeting; provided however, that in
the event that less than seventy (70) days notice or prior public disclosure of
the date of the meeting is given or made to stockholders, notice by the
stockholder, to be timely, must be received no later than that the close of
business on the tenth (10th) day following the day on which such notice of the
date of the meeting was mailed or such public disclosure was made, whichever
first occurs. Such stockholder's notice to the Secretary shall set forth (i) as
to each person whom the stockholder proposes to nominate for election or
reelection as a director, (a) the name, age, business address and
 
                                      E-3
<PAGE>
residence address of the person, (b) the principal occupation or employment of
the person, (c) the class and number of shares of capital stock of the
Corporation which are beneficially owned by the person, and (d) any other
information relating to the person that is required to be disclosed in
solicitations for proxies for election of directors pursuant to the Rules and
Regulations of the Securities and Exchange Commission under Section 14 of the
Securities Exchange Act of 1934, as amended; and (ii) as to the stockholder
giving the notice (a) the name and record address of the stockholder and (b) the
class and number of shares of capital stock of the Corporation which are
beneficially owned by the stockholder. The Corporation may require any proposed
nominee to furnish such other information as may reasonably be required by the
Corporation to determine the eligibility of such proposed nominee to serve as a
director of the Corporation. No person shall be eligible for election as a
director of the Corporation unless nominated in accordance with the procedures
set forth herein. The officer of the Corporation presiding at an annual meeting
shall, if the facts warrant, determine and declare to the meeting that a
nomination was not made in accordance with the foregoing procedure, and if he
should so determine, he shall so declare to the meeting and the defective
nomination shall be disregarded.
 
    Section 3.  MEETINGS.  The Board of Directors of the Corporation may hold
meetings, both regular and special, either within or without the State of
Delaware. Regular meetings of the Board of Directors may be held without notice
at such time and at such place as may from time to time be determined by the
Board of Directors. Special meetings of the Board of Directors may be called by
the Chairman of the Board and Chief Executive Officer or the President and Chief
Operating Officer or a majority of the entire Board of Directors. Notice thereof
stating the place, date and hour of the meeting shall be given to each director
either by mail not less than forty-eight (48) hours before the date of the
meeting, by telephone or telegram on twenty-four (24) hours notice, or on such
shorter notice as the person or persons calling such meeting may deem necessary
or appropriate in the circumstances.
 
    Section 4.  QUORUM.  Except as may be otherwise specifically provided by
law, the Certificate of Incorporation or these Bylaws, at all meetings of the
Board of Directors, a majority of the entire Board of Directors shall constitute
a quorum for the transaction of business and the act of a majority of the
directors present at any meeting at which there is a quorum shall be the act of
the Board of Directors. If a quorum shall not be present at any meeting of the
Board of Directors, a majority of the directors present thereat may adjourn the
meeting from time to time, without notice other than announcement at the
meeting, until a quorum shall be present.
 
    Section 5.  ACTIONS OF BOARD OF DIRECTORS.  Unless otherwise provided by the
Certificate of Incorporation or these Bylaws, any action required or permitted
to be taken at any meeting of the Board of Directors or of any committee thereof
may be taken without a meeting, if all the members of the Board of Directors or
committee, as the case may be, consent thereto in writing, and the writing or
writings are filed with the minutes of proceedings of the Board of Directors or
committee.
 
    Section 6.  MEETINGS BY MEANS OF CONFERENCE TELEPHONE.  Unless otherwise
provided by the Certificate of Incorporation or these Bylaws, members of the
Board of Directors of the Corporation, or any committee designated by the Board
of Directors, may participate in a meeting of the Board of Directors or such
committee by means of a conference telephone or similar communications equipment
by means of which all persons participating in the meeting can hear each other,
and participation in a meeting pursuant to this Article III, Section 6 shall
constitute presence in person at such meeting.
 
    Section 7.  COMMITTEES.  The Board of Directors may designate one or more
committees, each committee to consist of one or more of the directors of the
Corporation. The Board of Directors may designate one or more directors as
alternate members of any committee, who may replace any absent or disqualified
member at any meeting of any such committee. In the absence or disqualification
of a member of a committee, and in the absence of a designation by the Board of
Directors of an alternate member to replace the absent or disqualified member,
the member or members thereof present at any meeting and not disqualified from
voting, whether or not he or they constitute a quorum, may unanimously appoint
 
                                      E-4
<PAGE>
another member of the Board of Directors to act at the meeting in the place of
any absent or disqualified member. Any committee, to the extent allowed by law
and provided in the resolution establishing such committee, shall have and may
exercise all the powers and authority of the Board of Directors in the
management of the business and affairs of the Corporation. Each committee shall
keep regular minutes and report to the Board of Directors when required.
 
    Section 8.  EXECUTIVE COMMITTEE.  The Executive Committee of the Corporation
shall have responsibility for developing the long-term strategic plans of the
Corporation, making significant capital allocation decisions and such other
duties and responsibilities as specified by the Board of Directors. The
Executive Committee shall also be required to oversee the implementation of the
100% guest satisfaction guarantee program at all of the Corporation's hotel
properties.
 
    Section 9.  COMPENSATION.  The directors may be paid their expenses, if any,
of attendance at each meeting of the Board of Directors and may be paid a fixed
sum for attendance at each meeting of the Board of Directors or a stated salary
as director. No such payment shall preclude any director from serving the
Corporation in any other capacity and receiving compensation therefor. Members
of special or standing committees may be allowed like compensation for attending
committee meetings.
 
    Section 10.  INTERESTED DIRECTORS.  No contract or transaction between the
Corporation and one or more of its directors or officers, or between the
Corporation and any other corporation, partnership, association, or other
organization in which one or more of its directors or officers are directors or
officers, or have a financial interest, shall be void or voidable solely for
this reason, or solely because the director or officer is present at or
participates in the meeting of the Board of Directors or committee thereof which
authorizes the contract or transaction, or solely because his or their votes are
counted for such purpose if (i) the material facts as to his or their
relationship or interest and as to the contract or transaction are disclosed or
are known to the Board of Directors or the committee, and the Board of Directors
or committee in good faith authorizes the contract or transaction by the
affirmative votes of a majority of the disinterested directors, even though the
disinterested directors be less than a quorum; or (ii) the material facts as to
his or their relationship or interest and as to the contract or transaction are
disclosed or are known to the shareholders entitled to vote thereon, and the
contract or transaction is specifically approved in good faith by vote of the
shareholders; or (iii) the contract or transaction is fair as to the Corporation
as of the time it is authorized, approved or ratified, by the Board of
Directors, a committee thereof or the shareholders. Common or interested
directors may be counted in determining the presence of a quorum at a meeting of
the Board of Directors or of a committee which authorizes the contract or
transaction.
 
                                  ARTICLE IV.
                                    OFFICERS
 
    Section 1.  GENERAL.  The officers of the Corporation shall be elected by
the Board of Directors and shall consist of: a Chairman of the Board and Chief
Executive Officer; a President and Chief Operating Officer; a Secretary; and a
Treasurer. The Board of Directors, in its discretion, may also elect one or more
Executive Vice Presidents, Senior Vice Presidents, Vice Presidents, Assistant
Secretaries, Assistant Treasurers, a Controller and such other officers as in
the judgment of the Board of Directors may be necessary or desirable. Any number
of offices may be held by the same person, unless otherwise prohibited by law,
the Certificate of Incorporation or these Bylaws. The officers of the
Corporation need not be stockholders of the Corporation nor, except in the case
of the Chairman of the Board of Directors, need such officers be directors of
the Corporation.
 
    Section 2.  ELECTION.  The Board of Directors at its first meeting held
after each annual meeting of stockholders shall elect the officers of the
Corporation who shall hold their offices for such terms and shall exercise such
powers and perform such duties as shall be determined from time to time by the
Board of Directors; and all officers of the Corporation shall hold office until
their successors are chosen and
 
                                      E-5
<PAGE>
qualified, or until their earlier resignation or removal. Except as otherwise
provided in this Article IV, any officer elected by the Board of Directors may
be removed at any time by the affirmative vote of a majority of the Board of
Directors. Any vacancy occurring in any office of the Corporation shall be
filled by the Board of Directors. The salaries of all officers who are directors
of the Corporation shall be fixed by the Board of Directors.
 
    Section 3.  VOTING SECURITIES OWNED BY THE CORPORATION.  Powers of attorney,
proxies, waivers of notice of meeting, consents and other instruments relating
to securities owned by the Corporation may be executed in the name of and on
behalf of the Corporation by the Chairman of the Board and Chief Executive
Officer, the President and Chief Operating Officer or any Vice President, and
any such officer may, in the name and on behalf of the Corporation, take all
such action as any such officer may deem advisable to vote in person or by proxy
at any meeting of security holders of any corporation in which the Corporation
may own securities and at any such meeting shall possess and may exercise any
and all rights and power incident to the ownership of such securities and which,
as the owner thereof, the Corporation might have exercised and possessed if
present. The Board of Directors may, by resolution, from time to time confer
like powers upon any other person or persons.
 
    Section 4.  CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER.  The Chairman
of the Board shall be a member of the Board of Directors and an officer of the
Corporation, and, if present, shall preside at all meetings of the stockholders
and of the Board of Directors. The Chairman of the Board shall be the Chief
Executive Officer of the Corporation and shall supervise, coordinate and manage
the Corporation's business and activities and supervise, coordinate and manage
its operating expenses and capital allocation, shall have general authority to
exercise all the powers necessary for the Chief Executive Officer of the
Corporation and shall perform such other duties and have such other powers as
may be prescribed by the Board of Directors or these Amended and Restated
Bylaws, all in accordance with basic policies as established by and subject to
the oversight of the Board of Directors. Raymond E. Schultz shall serve as
Chairman of the Board and Chief Executive Officer of the Corporation until his
retirement no later than December 31, 1999. Richard M. Kelleher shall succeed
Mr. Schultz as Chairman of the Board and Chief Executive Officer no later than
January 1, 2000, unless 75% or more of the members of the Board of Directors
vote otherwise.
 
    Section 5.  PRESIDENT AND CHIEF OPERATING OFFICER.  The President and Chief
Operating Officer shall supervise, coordinate and manage the Corporation's
business and activities and supervise, coordinate and manage its operating
expenses and capital allocation, shall have general authority to exercise all
the powers necessary for the President and Chief Operating Officer of the
Corporation and shall perform such other duties and have such other powers as
may be prescribed by the Board of Directors or these Amended and Restated
Bylaws, all in accordance with basic policies as established by and subject to
the oversight of the Board of Directors and the Chairman of the Board and Chief
Executive Officer. In the absence or disability of the Chairman of the Board and
Chief Executive Officer, the duties of the Chairman of the Board shall be
performed and the Chairman of the Board's authority may be exercised by the
President and Chief Operating Officer and, in the event the President and Chief
Operating Officer is absent or disabled, such duties shall be performed and such
authority may be exercised by a director designated for such purpose by the
Board of Directors. Unless 75% or more of the members of the Board of Directors
vote otherwise, Richard M. Kelleher shall continue to serve as President and
Chief Operating Officer until Raymond E. Schultz retires as Chairman of the
Board and Chief Executive Officer.
 
    Section 6.  VICE PRESIDENTS.  At the request of the President and Chief
Operating Officer or in the absence of both the Chairman of the Board and Chief
Executive Officer and the President and Chief Operating Officer, or in the event
of their inability or refusal to act , the Vice President or the Vice Presidents
if there is more than one (in the order designated by the Board of Directors)
shall perform the duties of the Chairman of the Board and Chief Executive
Officer and/or the President and Chief Operating Officer, and when so acting,
shall have all the powers of and be subject to all the restrictions upon such
offices (other than as Chairman of the Board). Each Vice President shall perform
such other
 
                                      E-6
<PAGE>
duties and have such other powers as the Board of Directors from time to time
may prescribe. If there be no Vice President, the Board of Directors shall
designate the officer of the Corporation who, in the absence of the Chairman of
the Board and Chief Executive Officer and the President and Chief Operating
Officer or in the event of the inability or refusal of such officers to act,
shall perform the duties of such offices (other than as Chairman of the Board),
and when so acting, shall have all the powers of and be subject to all the
restrictions upon such offices (other than as Chairman of the Board).
 
    Section 7.  SECRETARY.  The Secretary shall attend all meetings of the Board
of Directors and all meetings of stockholders and record all the proceedings
thereat in a book or books to be kept for that purpose; the Secretary shall also
perform like duties for the standing committees when required. The Secretary
shall give, or cause to be given, notice of all meetings of the stockholders and
special meetings of the Board of Directors, and shall perform such other duties
as may be prescribed by the Board of Directors, the Chairman of the Board and
Chief Executive Officer or the President and Chief Operating Officer, under
whose supervision the Secretary shall be. If the Secretary shall be unable or
shall refuse to cause to be given notice of all meetings of the stockholders and
special meetings of the Board of Directors, and if there be no Assistant
Secretary, then the Board of Directors, the Chairman of the Board and Chief
Executive Officer or the President and Chief Operating Officer may choose
another officer to cause such notice to be given. The Secretary shall have
custody of the seal of the Corporation and the Secretary or any Assistant
Secretary, if there be one, shall have authority to affix the same to any
instrument requiring it and when so affixed, it may be attested by the signature
of the Secretary or by the signature of any such Assistant Secretary. The Board
of Directors may give general authority to any other officer to affix the seal
of the Corporation and to attest the affixing by his signature. The Secretary
shall see that all books, reports, statements, certificates and other documents
and records required by law to be kept or filed are properly kept or filed, as
the case may be.
 
    Section 8.  TREASURER.  The Treasurer shall have the custody of the
corporate funds and securities and shall keep full and accurate accounts of
receipts and disbursements in books belonging to the Corporation and shall
deposit all moneys and other valuable effects in the name and to the credit of
the Corporation in such depositories as may be designated by the Board of
Directors. The Treasurer shall disburse the funds of the Corporation as may be
ordered by the Board of Directors, taking proper vouchers for such
disbursements, and shall render to the President and the Board of Directors, at
its regular meetings, or when the Board of Directors so requires, an account of
all his transactions as Treasurer and of the financial condition of the
Corporation. If required by the Board of Directors, the Treasurer shall give the
Corporation a bond in such sum and with such surety or sureties as shall be
satisfactory to the Board of Directors for the faithful performance of the
duties of his office and for the restoration to the Corporation, in case of his
death, resignation, retirement or removal from office, of all books, papers,
vouchers, money and other property of whatever kind in his possession or under
his control belonging to the Corporation.
 
    Section 9.  ASSISTANT SECRETARIES.  Except as may be otherwise provided in
these Bylaws, Assistant Secretaries, if there be any, shall perform such duties
and have such powers as from time to time may be assigned to them by the Board
of Directors, the Chairman of the Board and Chief Executive Officer, the
President and Chief Operating Officer, any Vice President, if there be one, or
the Secretary, and in the absence of the Secretary or in the event of his
disability or refusal to act, shall perform the duties of the Secretary, and
when so acting, shall have all the powers of and be subject to all the
restrictions upon the Secretary.
 
    Section 10.  ASSISTANT TREASURERS.  Assistant Treasurers, if there be any,
shall perform such duties and have such powers as from time to time may be
assigned to them by the Board of Directors, the Chairman of the Board and Chief
Executive Officer, the President and Chief Operating Officer, any Vice
President, if there be one, or the Treasurer, and in the absence of the
Treasurer or in the event of his disability or refusal to act, shall perform the
duties of the Treasurer, and when so acting, shall have all the powers of and be
subject to all the restrictions upon the Treasurer. If required by the Board of
Directors, an Assistant Treasurer shall give the Corporation a bond in such sum
and with such surety or sureties as shall be
 
                                      E-7
<PAGE>
satisfactory to the Board of Directors for the faithful performance of the
duties of his office and for the restoration to the Corporation, in case of his
death, resignation, retirement or removal from office, of all books, papers,
vouchers, money and other property of whatever kind in his possession or under
his control belonging to the Corporation.
 
    Section 11.  CONTROLLER.  The Controller shall establish and maintain the
accounting records of the Corporation in accordance with generally accepted
accounting principles applied on a consistent basis, maintain proper internal
control of the assets of the Corporation and shall perform such other duties as
the Board of Directors, the Chairman of the Board and Chief Executive Officer,
the President and Chief Operating Officer or any Vice President of the
Corporation may prescribe.
 
    Section 12.  OTHER OFFICERS.  Such other officers as the Board of Directors
may choose shall perform such duties and have such powers as from time to time
may be assigned to them by the Board of Directors. The Board of Directors may
delegate to any other officer of the Corporation the power to choose such other
officers and to prescribe their respective duties and powers. Initially and
until such time as Richard M. Kelleher succeeds Raymond E. Schultz as Chairman
of the Board and Chief Executive Officers of the Corporation, William L.
Perocchi shall serve as Executive Vice President and Chief Financial Officer of
the Corporation, unless 75% or more of the members of the Board of Directors
vote otherwise.
 
                                   ARTICLE V.
                                     STOCK
 
    Section 1.  FORM OF CERTIFICATES.  Every holder of stock in the Corporation
shall be entitled to have a certificate signed, in the name of the Corporation
(i) by the Chairman of the Board and Chief Executive Officer, the President and
Chief Operating Officer or a Vice President and (ii) by the Treasurer or an
Assistant Treasurer, or the Secretary or an Assistant Secretary of the
Corporation, certifying the number of shares owned by him in the Corporation.
 
    Section 2.  SIGNATURES.  Any or all of the signatures on the certificate may
be a facsimile, including, but not limited to, signatures of officers of the
Corporation and countersignatures of a transfer agent or registrar. In case any
officer, transfer agent or registrar who has signed or whose facsimile signature
has been placed upon a certificate shall have ceased to be such officer,
transfer agent or registrar before such certificate is issued, it may be issued
by the Corporation with the same effect as if he were such officer, transfer
agent or registrar at the date of issue.
 
    Section 3.  LOST CERTIFICATES.  The Board of Directors may direct a new
certificate to be issued in place of any certificate theretofore issued by the
Corporation alleged to have been lost, stolen or destroyed, upon the making of
an affidavit of that fact by the person claiming the certificate of stock to be
lost, stolen or destroyed. When authorizing such issue of a new certificate, the
Board of Directors may, in its discretion and as a condition precedent to the
issuance thereof, require the owner of such lost, stolen or destroyed
certificate, or his legal representative, to advertise the same in such manner
as the Board of Directors shall require and/or to give the Corporation a bond in
such sum as it may direct as indemnity against any claim that may be made
against the Corporation with respect to the certificate alleged to have been
lost, stolen or destroyed.
 
    Section 4.  TRANSFERS.  Stock of the Corporation shall be transferable in
the manner prescribed by law and in these Bylaws. Transfers of stock shall be
made on the books of the Corporation only by the person named in the certificate
or by his attorney lawfully constituted in writing and upon the surrender of the
certificate therefor, which shall be canceled before a new certificate shall be
issued.
 
    Section 5.  BOOK-ENTRY RECORDKEEPING  The Board of Directors may register
the stock of the Corporation in book-entry form without issuing certificates
representing such stock. Any transfers of stock registered in book-entry form
shall be made on the books of the Corporation only by the person named on the
books of the Corporation or by his attorney lawfully constituted in writing.
 
                                      E-8
<PAGE>
                                                                         ANNEX F
 
                       THE 1997 EQUITY PARTICIPATION PLAN
                                       OF
                              PARENT HOLDING CORP.
                   (TO BE KNOWN AS PROMUS HOTEL CORPORATION)
 
    Parent Holding Corp. (to be renamed Promus Hotel Corporation), a Delaware
corporation, has adopted The 1997 Equity Participation Plan of Promus Hotel
Corporation (the "Plan"), effective                 , 1997, for the benefit of
its eligible employees, consultants and directors. The Plan consists of two
plans, one for the benefit of key Employees (as such term is defined below) and
consultants and one for the benefit of Independent Directors (as such term is
defined below).
 
    The purposes of this Plan are as follows:
 
    (1) To provide an additional incentive for directors, key Employees and
consultants to further the growth, development and financial success of the
Company by personally benefiting through the ownership of Company stock and/or
rights which recognize such growth, development and financial success.
 
    (2) To enable the Company to obtain and retain the services of directors,
key Employees and consultants considered essential to the long range success of
the Company by offering them an opportunity to own stock in the Company and/or
rights which will reflect the growth, development and financial success of the
Company.
 
                                   ARTICLE I
                                  DEFINITIONS
 
    1.1  GENERAL.  Wherever the following terms are used in this Plan they shall
have the meanings specified below, unless the context clearly indicates
otherwise.
 
    1.2  AWARD AGREEMENT.  "Award Agreement" shall mean a written agreement or
certificate executed by an authorized officer of the Company which shall contain
such terms and conditions with respect to an Award as the Committee (or the
Board, in the case of Awards granted to Independent Directors) shall determine,
consistent with the Plan.
 
    1.3  AWARD LIMIT.  "Award Limit" shall mean five-hundred thousand (500,000)
shares of Common Stock, as adjusted pursuant to Section 10.3.
 
    1.4  AWARD.  "Award" shall mean an Option, a Restricted Stock award, a
Performance Award, a Dividend Equivalents award, a Deferred Stock award, a Stock
Payment award or a Stock Appreciation Right which may be awarded or granted
under the Plan (collectively, "Awards").
 
    1.5  BOARD.  "Board" shall mean the Board of Directors of the Company.
 
    1.6  CHANGE IN CONTROL.  "Change in Control" shall mean the occurrence of
any of the following after the date hereof:
 
        (a) any "person" (as such term is used in Section 13(d) and 14(d) of the
    Exchange Act), other than an employee benefit plan of the Company, or a
    trustee or other fiduciary holding securities under an employee benefit plan
    of the Company, becomes a "beneficial owner" (as defined in Rule 13d-3 under
    the Exchange Act), directly or indirectly, of twenty-five percent (25%) or
    more of the Company's then outstanding voting securities carrying the right
    to vote in elections of persons to the Board, regardless of comparative
    voting power of such voting securities, and regardless of whether or not the
    Board shall have approved such Change in Control; or
 
        (b) during any period of two (2) consecutive years (not including any
    period prior to the execution of the Plan), individuals who at the beginning
    of such period constitute the Board (the "Incumbent Board") and any other
    new Director (other than a Director designated by a person who
 
                                      F-1
<PAGE>
    shall have entered into an agreement with the Company to effect a
    transaction described in clauses (a) or (b) of this subsection) whose
    election by the Board or nomination for election by the Company's
    stockholders was approved by a vote of at least two-thirds (2/3) of the
    Directors then still in office who either were Directors at the beginning of
    the period or whose election or nomination for election was previously
    approved (each such new Director being considered a member of the "Incumbent
    Board"), cease for any reason to constitute a majority thereof; or
 
        (c) the holders of securities of the Company entitled to vote thereon
    approve of the following:
 
           (i) a merger or consolidation of the Company with any other
       corporation regardless of which entity is the surviving company, other
       than a merger or consolidation which would result in the voting
       securities of the Company carrying the right to vote in elections of
       persons to the Board outstanding immediately prior thereto continuing to
       represent (either by remaining outstanding or by being converted into
       voting securities of the surviving entity) at least sixty-six and
       two-thirds percent (66 2/3%) of the Company's then-outstanding voting
       securities carrying the right to vote in elections of persons to the
       Board or such securities of such surviving entity outstanding immediately
       after such merger or consolidation, or
 
           (ii) a plan of complete liquidation of the Company or an agreement
       for the sale or disposition by the Company of all or substantially all of
       the Company's assets.
 
    Notwithstanding the definition of "Change in Control" as set forth in the
Plan, the Board shall have full and final authority, which shall be exercised in
its discretion, to determine conclusively whether a Change in Control has
occurred, and the date of the occurrence of such Change in Control and any
incidental matters relating thereto, with respect to a transaction or series of
transactions which have resulted or will result in a substantial portion of the
assets or business of the Company (as determined immediately prior to the
transaction or series of transactions by the Board in its sole discretion which
determination shall be final and conclusive) being held by a corporation at
least sixty-six and two-thirds percent (66 2/3%) of whose voting securities are
held, immediately following such transaction or series of transactions would
otherwise constitute a Change in Control under the definition set forth in the
Plan.
 
    1.7  CODE.  "Code" shall mean the Internal Revenue Code of 1986, as amended.
 
    1.8  COMMITTEE.  "Committee" shall mean the Human Resources Committee of the
Board, or another committee or subcommittee of the Board, appointed as provided
in Section 9.1.
 
    1.9  COMMON STOCK.  "Common Stock" shall mean the common stock of the
Company, par value $.01 per share, and any equity security of the Company issued
or authorized to be issued in the future, but excluding any preferred stock and
any warrants, options or other rights to purchase Common Stock. Debt securities
of the Company convertible into Common Stock shall be deemed equity securities
of the Company.
 
    1.10  COMPANY.  "Company" shall mean Parent Holding Corp. (to be renamed
Promus Hotel Corporation), a Delaware corporation.
 
    1.11  CORPORATE TRANSACTION.  "Corporate Transaction" shall mean any of the
following stockholder-approved transactions to which the Company is a party:
 
    (a) a merger or consolidation in which the Company is not the surviving
entity, except for a transaction the principal purpose of which is to change the
State in which the Company is incorporated, form a holding company or effect a
similar reorganization as to form whereupon the Plan and all Options are assumed
by the successor entity;
 
    (b) the sale, transfer, exchange or other disposition of all or
substantially all of the assets of the Company, in complete liquidation or
dissolution of the Company in a transaction not covered by the exceptions to
clause (a), above; or
 
                                      F-2
<PAGE>
    (c) any reverse merger in which the Company is the surviving entity but in
which securities possessing more than fifty percent (50%) of the total combined
voting power of the Company's outstanding securities are transferred or issued
to a person or persons different from those who held such securities immediately
prior to such merger.
 
    1.12  DEFERRED STOCK.  "Deferred Stock" shall mean Common Stock awarded
under Article VII of the Plan.
 
    1.13  DIRECTOR.  "Director" shall mean a member of the Board.
 
    1.14  DIVIDEND EQUIVALENT.  "Dividend Equivalent" shall mean a right to
receive the equivalent value (in cash or Common Stock) of dividends paid on
Common Stock, awarded under Article VII of the Plan.
 
    1.15  EMPLOYEE.  "Employee" shall mean any officer or other employee (as
defined in accordance with Section 3401(c) of the Code) of the Company, or of
any corporation which is a Subsidiary.
 
    1.16  EXCHANGE ACT.  "Exchange Act" shall mean the Securities Exchange Act
of 1934, as amended.
 
    1.17  FAIR MARKET VALUE.  "Fair Market Value" of a share of Common Stock as
of a given date shall be (i) the closing price of a share of Common Stock on the
principal exchange on which shares of Common Stock are then trading, if any (or
as reported on any composite index which includes such principal exchange), on
the trading day previous to such date, or if shares were not traded on the
trading day previous to such date, then on the next preceding date on which a
trade occurred, or (ii) if Common Stock is not traded on an exchange but is
quoted on Nasdaq or a successor quotation system, the mean between the closing
representative bid and asked prices for the Common Stock on the trading day
previous to such date as reported by Nasdaq or such successor quotation system;
or (iii) if Common Stock is not publicly traded on an exchange and not quoted on
Nasdaq or a successor quotation system, the Fair Market Value of a share of
Common Stock as established by the Committee (or the Board, in the case of
Options granted to Independent Directors) acting in good faith.
 
    1.18  GRANTEE.  "Grantee" shall mean an Employee, consultant or Independent
Director granted a Performance Award, Dividend Equivalent, Stock Payment or
Stock Appreciation Right, or an award of Deferred Stock, under the Plan.
 
    1.19  HOLDER.  "Holder" shall mean a person who has been granted or awarded
an Award.
 
    1.20  INCENTIVE STOCK OPTION.  "Incentive Stock Option" shall mean an option
which conforms to the applicable provisions of Section 422 of the Code and which
is designated as an Incentive Stock Option by the Committee.
 
    1.21  INDEPENDENT DIRECTOR.  "Independent Director" shall mean a member of
the Board who is not an Employee of the Company.
 
    1.22  NON-QUALIFIED STOCK OPTION.  "Non-Qualified Stock Option" shall mean
an Option which is not designated as an Incentive Stock Option by the Committee.
 
    1.23  OPTION.  "Option" shall mean a stock option granted under Article III
of the Plan. An Option granted under the Plan shall, as determined by the
Committee, be either a Non-Qualified Stock Option or an Incentive Stock Option;
PROVIDED, HOWEVER, that Options granted to Independent Directors and consultants
shall be Non-Qualified Stock Options.
 
    1.24  OPTIONEE.  "Optionee" shall mean an Employee, consultant or
Independent Director granted an Option under the Plan.
 
    1.25  PERFORMANCE AWARD.  "Performance Award" shall mean a cash bonus, stock
bonus or other performance or incentive award that is paid in cash, Common Stock
or a combination of both, awarded under Article VII of the Plan.
 
    1.26  PERFORMANCE CRITERIA.  "Performance Criteria" shall mean the following
business criteria with respect to the Company or any Subsidiary: (i) net income,
(ii) pre-tax income, (iii) operating income,
 
                                      F-3
<PAGE>
(iv) cash flow, (v) earnings per share, (vi) return on equity, (vii) return on
invested capital or assets, (viii) cost reductions or savings, (ix) funds from
operations, (x) appreciation in the fair market value of Common Stock and (xi)
earnings before any one or more of the following items: interest, taxes,
depreciation or amortization.
 
    1.27  PERMITTED TRANSFEREE.  "Permitted Transferee" shall mean (i) one or
more of the following family members of a Holder: spouse, former spouse, child
(whether natural or adopted), stepchild, any other lineal descendant of the
Holder, (ii) a trust, partnership or other entity established and existing for
the sole benefit of, or under the sole control of, one or more of the above
family members of the Holder, or (iii) any other transferee specifically
approved by the Committee after taking into account any state or federal tax or
securities laws applicable to transferable Awards.
 
    1.28  PLAN.  "Plan" shall mean The 1997 Equity Participation Plan of Parent
Holding Corp. (to be known as Promus Hotel Corporation).
 
    1.29  QDRO.  "QDRO" shall mean a qualified domestic relations order as
defined by the Code or Title I of the Employee Retirement Income Security Act of
1974, as amended, or the rules thereunder.
 
    1.30  RESTRICTED STOCK.  "Restricted Stock" shall mean Common Stock awarded
under Article VI of the Plan.
 
    1.31  RESTRICTED STOCKHOLDER.  "Restricted Stockholder" shall mean an
Employee, consultant or Independent Director granted an award of Restricted
Stock under Article VI of the Plan.
 
    1.32  RULE 16B-3.  "Rule 16b-3" shall mean that certain Rule 16b-3 under the
Exchange Act, as such Rule may be amended from time to time.
 
    1.33  SECTION 162(M) PARTICIPANT.  "Section 162(m) Participant" shall mean
any key Employee designated by the Committee as a key Employee whose
compensation for the fiscal year in which the key Employee is so designated or a
future fiscal year may be subject to the limit on deductible compensation
imposed by Section 162(m) of the Code.
 
    1.34  SECURITIES ACT.  "Securities Act" shall mean the Securities Act of
1933, as amended.
 
    1.35  STOCK APPRECIATION RIGHT.  "Stock Appreciation Right" shall mean a
stock appreciation right granted under Article VIII of the Plan.
 
    1.36  STOCK PAYMENT.  "Stock Payment" shall mean (i) a payment in the form
of shares of Common Stock, or (ii) an option or other right to purchase shares
of Common Stock, as part of a deferred compensation arrangement, made in lieu of
all or any portion of the compensation, including without limitation, salary,
bonuses and commissions, that would otherwise become payable to a key Employee,
consultant or Independent Director in cash, awarded under Article VII of the
Plan.
 
    1.37  SUBSIDIARY.  "Subsidiary" shall mean any corporation in an unbroken
chain of corporations beginning with the Company if each of the corporations
other than the last corporation in the unbroken chain then owns stock possessing
fifty percent (50%) or more of the total combined voting power of all classes of
stock in one of the other corporations in such chain.
 
    1.38  TERMINATION OF CONSULTANCY.  "Termination of Consultancy" shall mean
the time when the engagement of a Holder as a consultant to the Company or a
Subsidiary is terminated for any reason, with or without cause, including, but
not by way of limitation, by resignation, discharge, death or retirement; but
excluding terminations where there is a simultaneous commencement of employment
with the Company or any Subsidiary. The Committee, in its absolute discretion,
shall determine the effect of all matters and questions relating to Termination
of Consultancy, including, but not by way of limitation, the question of whether
a Termination of Consultancy resulted from a discharge for good cause, and all
questions of whether a particular leave of absence constitutes a Terminations of
Consultancy. Notwithstanding any other provision of the Plan, the Company or any
Subsidiary has an absolute and unrestricted right to
 
                                      F-4
<PAGE>
terminate a consultant's service at any time for any reason whatsoever, with or
without cause, except to the extent expressly provided otherwise in writing.
 
    1.39  TERMINATION OF DIRECTORSHIP.  "Termination of Directorship" shall mean
the time when an Optionee who is an Independent Director ceases to be a Director
for any reason, including, but not by way of limitation, a termination by
resignation, failure to be elected, death or retirement. The Board, in its sole
and absolute discretion, shall determine the effect of all matters and questions
relating to Termination of Directorship with respect to Independent Directors.
 
    1.40  TERMINATION OF EMPLOYMENT.  "Termination of Employment" shall mean the
time when the employee-employer relationship between a Holder and the Company or
any Subsidiary is terminated for any reason, with or without cause, including,
but not by way of limitation, a termination by resignation, discharge, death,
disability or retirement; but excluding (i) terminations where there is a
simultaneous reemployment or continuing employment of a Holder by the Company or
any Subsidiary, (ii) at the discretion of the Committee, terminations which
result in a temporary severance of the employee-employer relationship, and (iii)
at the discretion of the Committee, terminations which are followed by the
simultaneous establishment of a consulting relationship by the Company or a
Subsidiary with the former employee. The Committee, in its absolute discretion,
shall determine the effect of all matters and questions relating to Termination
of Employment, including, but not by way of limitation, the question of whether
a Termination of Employment resulted from a discharge for good cause, and all
questions of whether a particular leave of absence constitutes a Terminations of
Employment; PROVIDED, HOWEVER, that, with respect to Incentive Stock Options,
unless otherwise determined by the Committee in its discretion, a leave of
absence, change in status from an employee to an independent contractor or other
change in the employee-employer relationship shall constitute a Termination of
Employment if, and to the extent that, such leave of absence, change in status
or other change interrupts employment for the purposes of Section 422(a)(2) of
the Code and the then applicable regulations and revenue rulings under said
Section. Notwithstanding any other provision of the Plan, the Company or any
Subsidiary has an absolute and unrestricted right to terminate an Employee's
employment at any time for any reason whatsoever, with or without cause, except
to the extent expressly provided otherwise in writing.
 
                                   ARTICLE II
                             SHARES SUBJECT TO PLAN
 
    2.1  SHARES SUBJECT TO PLAN.
 
    (a) The shares of stock subject to Awards shall be Common Stock, initially
shares of the Company's Common Stock, par value $.01 per share. The aggregate
number of such shares which may be issued upon grant or exercise of Awards under
the Plan shall not exceed ten million (10,000,000), provided, however, that the
aggregate number of shares which may be issued upon grant or exercise of Awards
which are not Options or Awards which are not issued in lieu of cash payments of
compensation or directors' fees shall not exceed one-hundred and fifty thousand
(150,000). The shares of Common Stock issuable upon exercise of such Options or
rights or upon any such awards may be either previously authorized but unissued
shares or treasury shares.
 
    (b) The maximum number of shares which may be subject to Awards granted
under the Plan to any individual in any calendar year shall not exceed the Award
Limit. To the extent required by Section 162(m) of the Code, shares subject to
Options which are canceled continue to be counted against the Award Limit.
 
    2.2  ADD-BACK OF OPTIONS AND OTHER RIGHTS.  If any Option, or other right to
acquire shares of Common Stock under any other award under the Plan, expires or
is canceled without having been fully exercised, or is exercised in whole or in
part for cash as permitted by the Plan, the number of shares subject to such
Option or other right but as to which such Option or other right was not
exercised prior to its expiration, cancellation or exercise may again be
optioned, granted or awarded hereunder, subject to the limitations of Section
2.1. Furthermore, any shares subject to Awards which are adjusted pursuant to
 
                                      F-5
<PAGE>
Section 10.3 and become exercisable with respect to shares of stock of another
corporation shall be considered cancelled and may again be optioned, granted or
awarded hereunder, subject to the limitations of Section 2.1. Shares of Common
Stock which are delivered by the Holder or withheld by the Company upon the
exercise of any Award under the Plan, in payment of the exercise price thereof
or tax withholding thereon, may again be optioned, granted or awarded hereunder,
subject to the limitations of Section 2.1. If any share of Restricted Stock is
forfeited by the Grantee or repurchased by the Company pursuant to Section 6.6
hereof, such share may again be optioned, granted or awarded hereunder, subject
to the limitations of Section 2.1. Notwithstanding the provisions of this
Section 2.2, no shares of Common Stock may again be optioned, granted or awarded
if such action would cause an Incentive Stock Option to fail to qualify as an
incentive stock option under Section 422 of the Code.
 
                                  ARTICLE III
                              GRANTING OF OPTIONS
 
    3.1  ELIGIBILITY.  Any Employee or consultant selected by the Committee
pursuant to Section 3.4(a)(i) shall be eligible to be granted an Option. Each
Independent Director of the Company shall be eligible to be granted Options at
the times and in the manner set forth in subsections (d) and (e) of Section 3.4.
 
    3.2  DISQUALIFICATION FOR STOCK OWNERSHIP.  No person may be granted an
Incentive Stock Option under the Plan if such person, at the time the Incentive
Stock Option is granted, owns stock possessing more than ten percent (10%) of
the total combined voting power of all classes of stock of the Company or any
then existing Subsidiary or parent corporation (within the meaning of Section
422 of the Code) unless such Incentive Stock Option conforms to the applicable
provisions of Section 422 of the Code.
 
    3.3  QUALIFICATION OF INCENTIVE STOCK OPTIONS.  No Incentive Stock Option
shall be granted to any person who is not an Employee.
 
    3.4  GRANTING OF OPTIONS
 
    (a) The Committee shall from time to time, in its absolute discretion, and
subject to applicable limitations of the Plan:
 
        (i) Determine which Employees are key Employees and select from among
    the key Employees or consultants (including Employees or consultants who
    have previously received Awards under the Plan) such of them as in its
    opinion should be granted Options;
 
        (ii) Subject to the Award Limit, determine the number of shares to be
    subject to such Options granted to the selected key Employees or
    consultants;
 
       (iii) Subject to Section 3.3, determine whether such Options are to be
    Incentive Stock Options or Non-Qualified Stock Options and whether such
    Options are to qualify as performance-based compensation as described in
    Section 162(m)(4)(C) of the Code; and
 
        (iv) Determine the terms and conditions of such Options, consistent with
    the Plan; PROVIDED, HOWEVER, that the terms and conditions of Options
    intended to qualify as performance-based compensation as described in
    Section 162(m)(4)(C) of the Code shall include, but not be limited to, such
    terms and conditions as may be necessary to meet the applicable provisions
    of Section 162(m) of the Code.
 
    (b) Upon the selection of a key Employee or consultant to be granted an
Option, the Committee shall instruct the Secretary of the Company to issue the
Option and may impose such conditions on the grant of the Option as it deems
appropriate.
 
                                      F-6
<PAGE>
    (c) Any Incentive Stock Option granted under the Plan may be modified by the
Committee, with the consent of the Optionee, to disqualify such Option from
treatment as an "incentive stock option" under Section 422 of the Code.
 
    (d) During the term of the Plan, each person who is an Independent Director
as of the date of the consummation of the merger of Promus Hotel Corporation and
Doubletree Corporation shall be granted an Option to purchase ten thousand
(10,000) shares of Common Stock (subject to adjustment as provided in Section
10.3) on the date of the closing of such merger. During the term of the Plan, a
person who is initially elected to the Board after the consummation of the
merger of Promus Hotel Corporation and Doubletree Corporation and who is an
Independent Director at the time of such initial election automatically shall be
granted an Option to purchase ten thousand (10,000) shares of Common Stock
(subject to adjustment as provided in Section 10.3) on the date of such initial
election. Members of the Board who are employees of the Company who subsequently
retire from the Company and remain on the Board will not receive an initial
Option grant pursuant to the preceding sentence, but to the extent that they are
otherwise eligible, will receive, after retirement from employment with the
Company, Options as described in the preceding sentence. All the foregoing
Option grants authorized by this Section 3.4(d) are subject to stockholder
approval of the Plan.
 
    (e) Options may be granted under the Plan to Employees and consultants in
lieu of cash bonuses which would otherwise be payable to such Employees and
consultants and to Independent Directors in lieu of directors' fees which would
otherwise be payable to such Independent Directors, pursuant to such policies
which may be adopted by the Committee (or the Board, in the case of Options
granted to Independent Directors) from time to time.
 
                                   ARTICLE IV
                                TERMS OF OPTIONS
 
    4.1  AWARD AGREEMENT.  Each Option shall be evidenced by an Award Agreement.
Award Agreements evidencing Options intended to qualify as performance-based
compensation as described in Section 162(m)(4)(C) of the Code shall contain such
terms and conditions as may be necessary to meet the applicable provisions of
Section 162(m) of the Code. Award Agreements evidencing Incentive Stock Options
shall contain such terms and conditions as may be necessary to meet the
applicable provisions of Section 422 of the Code.
 
    4.2  OPTION PRICE.  The price per share of the shares subject to each Option
shall be set by the Committee; PROVIDED, HOWEVER, that such price shall be no
less than 100% of the Fair Market Value of a share of Common Stock on the date
the Option is granted; PROVIDED, HOWEVER, that (i) in the case of Incentive
Stock Options granted to an individual then owning (within the meaning of
Section 424(d) of the Code) more than 10% of the total combined voting power of
all classes of stock of the Company or any Subsidiary or parent corporation
thereof (within the meaning of Section 422 of the Code), such price shall not be
less than 110% of the Fair Market Value of a share of Common Stock on the date
the Option is granted (or the date the Option is modified, extended or renewed
for purposes of Section 424(h) of the Code) and (ii) in the case of Options
granted to Independent Directors under Section 3.4(d), such price shall equal
100% of the Fair Market Value of a share of Common Stock on the date the Option
is granted.
 
    4.3  OPTION TERM.  The term of an Option shall be set by the Committee in
its discretion, but shall not be more than ten (10) years from the date the
Option is granted; PROVIDED, HOWEVER, that, (i) in the case of Options granted
to Independent Directors under Section 3.4(d), the term shall be ten (10) years
from the date the Option is granted, without variation or acceleration
hereunder, but subject to Section 5.6, and (ii) in the case of Incentive Stock
Options, the term shall not be more than five (5) years from the date the
Incentive Stock Option is granted if the Incentive Stock Option is granted to an
individual then owning (within the meaning of Section 424(d) of the Code) more
than 10% of the total combined voting power of all classes of stock of the
Company or any Subsidiary or parent corporation thereof (within the meaning of
 
                                      F-7
<PAGE>
Section 422 of the Code). Except as limited by requirements of Section 422 of
the Code and regulations and rulings thereunder applicable to Incentive Stock
Options, the Committee may extend the term of any outstanding Option in
connection with any Termination of Employment or Termination of Consultancy of
the Optionee, or amend any other term or condition of such Option relating to
such a termination.
 
    4.4  OPTION VESTING
 
    (a) The period during which the right to exercise an Option in whole or in
part vests in the Optionee shall be set by the Committee and the Committee may
determine that an Option may not be exercised in whole or in part for a
specified period after it is granted; PROVIDED, HOWEVER, that, unless the
Committee otherwise provides in the terms of the Option or otherwise, no Option
shall be exercisable by any Optionee who is then subject to Section 16 of the
Exchange Act within the period ending six months and one day after the date the
Option is granted; and provided, further, that Options granted to Independent
Directors under Section 3.4(d) shall become exercisable in cumulative annual
installments of 25% on each of the first, second, third and fourth anniversaries
of the date of Option grant, without variation or acceleration hereunder except
as provided in Section 10.3(b). At any time after grant of an Option, the
Committee may, in its sole and absolute discretion and subject to whatever terms
and conditions it selects, accelerate the period during which an Option (except
an Option granted to an Independent Director) vests.
 
    (b) No portion of an Option which is unexercisable at Termination of
Employment, Termination of Directorship or Termination of Consultancy, as
applicable, shall thereafter become exercisable, except as may be otherwise
provided by the Committee in the case of Options granted to Employees or
consultants either in the Award Agreement or by action of the Committee
following the grant of the Option.
 
    (c) To the extent that the aggregate Fair Market Value of stock with respect
to which "incentive stock options" (within the meaning of Section 422 of the
Code, but without regard to Section 422(d) of the Code) are exercisable for the
first time by an Optionee during any calendar year (under the Plan and all other
incentive stock option plans of the Company and any parent or subsidiary
corporation (within the meaning of Section 422 of the Code) of the Company)
exceeds $100,000, such Options shall be treated as Non-Qualified Options to the
extent required by Section 422 of the Code. The rule set forth in the preceding
sentence shall be applied by taking Options into account in the order in which
they were granted. For purposes of this Section 4.4(c), the Fair Market Value of
stock shall be determined as of the time the Option with respect to such stock
is granted.
 
                                   ARTICLE V
                              EXERCISE OF OPTIONS
 
    5.1  PARTIAL EXERCISE.  An exercisable Option may be exercised in whole or
in part. However, an Option shall not be exercisable with respect to fractional
shares and the Committee (or the Board, in the case of Options granted to
Independent Directors) may require that, by the terms of the Option, a partial
exercise be with respect to a minimum number of shares.
 
    5.2  MANNER OF EXERCISE.  All or a portion of an exercisable Option shall be
deemed exercised upon delivery of all of the following to the Secretary of the
Company or his office:
 
    (a) A written notice complying with the applicable rules established by the
Committee (or the Board, in the case of Options granted to Independent
Directors) stating that the Option, or a portion thereof, is exercised. The
notice shall be signed by the Optionee or other person then entitled to exercise
the Option or such portion of the Option;
 
    (b) Such representations and documents as the Committee (or the Board, in
the case of Options granted to Independent Directors), in its absolute
discretion, deems necessary or advisable to effect compliance with all
applicable provisions of the Securities Act of 1933, as amended, and any other
federal or state securities laws or regulations. The Committee or Board may, in
its absolute discretion, also take
 
                                      F-8
<PAGE>
whatever additional actions it deems appropriate to effect such compliance
including, without limitation, placing legends on share certificates and issuing
stop-transfer notices to agents and registrars;
 
    (c) In the event that the Option shall be exercised pursuant to Section 10.1
by any person or persons other than the Optionee, appropriate proof of the right
of such person or persons to exercise the Option; and
 
    (d) Full cash payment to the Secretary of the Company for the shares with
respect to which the Option, or portion thereof, is exercised. However, the
Committee (or the Board, in the case of Options granted to Independent
Directors), may in its discretion (i) allow a delay in payment up to thirty (30)
days from the date the Option, or portion thereof, is exercised; (ii) allow
payment, in whole or in part, through the delivery of shares of Common Stock
which have been owned by the Optionee for at least six months, duly endorsed for
transfer to the Company with a Fair Market Value on the date of delivery equal
to the aggregate exercise price of the Option or exercised portion thereof;
(iii) allow payment, in whole or in part, through the surrender of shares of
Common Stock then issuable upon exercise of the Option having a Fair Market
Value on the date of Option exercise equal to the aggregate exercise price of
the Option or exercised portion thereof; (iv) allow payment, in whole or in
part, through the delivery of property of any kind which constitutes good and
valuable consideration; (v) allow payment, in whole or in part, through the
delivery of a full recourse promissory note bearing interest (at no less than
such rate as shall then preclude the imputation of interest under the Code) and
payable upon such terms as may be prescribed by the Committee or the Board; (vi)
allow payment, in whole or in part, through the delivery of a notice that the
Optionee has placed a market sell order with a broker with respect to shares of
Common Stock then issuable upon exercise of the Option, and that the broker has
been directed to pay a sufficient portion of the net proceeds of the sale to the
Company in satisfaction of the Option exercise price; or (vii) allow payment
through any combination of the consideration provided in the foregoing
subparagraphs (ii), (iii), (iv), (v) and (vi). In the case of a promissory note,
the Committee (or the Board, in the case of Options granted to Independent
Directors) may also prescribe the form of such note and the security to be given
for such note. The Option may not be exercised, however, by delivery of a
promissory note or by a loan from the Company when or where such loan or other
extension of credit is prohibited by law.
 
    5.3  CONDITIONS TO ISSUANCE OF STOCK CERTIFICATES.  The Company shall not be
required to issue or deliver any certificate or certificates for shares of stock
purchased upon the exercise of any Option or portion thereof prior to
fulfillment of all of the following conditions:
 
    (a) The admission of such shares to listing on all stock exchanges on which
such class of stock is then listed;
 
    (b) The completion of any registration or other qualification of such shares
under any state or federal law, or under the rulings or regulations of the
Securities and Exchange Commission or any other governmental regulatory body
which the Committee or Board shall, in its absolute discretion, deem necessary
or advisable;
 
    (c) The obtaining of any approval or other clearance from any state or
federal governmental agency which the Committee (or Board, in the case of
Options granted to Independent Directors) shall, in its absolute discretion,
determine to be necessary or advisable;
 
    (d) The lapse of such reasonable period of time following the exercise of
the Option as the Committee (or Board, in the case of Options granted to
Independent Directors) may establish from time to time for reasons of
administrative convenience; and
 
    (e) The receipt by the Company of full payment for such shares, including
payment of any applicable withholding tax, which in the discretion of the
Committee or the Board may be in the form of consideration used by the Optionee
to pay for such shares under Section 5.2(d).
 
                                      F-9
<PAGE>
    5.4  RIGHTS AS STOCKHOLDERS.  Optionees shall not be, nor have any of the
rights or privileges of, stockholders of the Company in respect of any shares
purchasable upon the exercise of any part of an Option unless and until
certificates representing such shares have been issued by the Company to such
Optionees.
 
    5.5  OWNERSHIP AND TRANSFER RESTRICTIONS.  The Committee (or Board, in the
case of Options granted to Independent Directors), in its absolute discretion,
may impose such restrictions on the ownership and transferability of the shares
purchasable upon the exercise of an Option as it deems appropriate. Any such
restriction shall be set forth in the respective Award Agreement and may be
referred to on the certificates evidencing such shares. The Committee may
require the Employee to give the Company prompt notice of any disposition of
shares of Common Stock acquired by exercise of an Incentive Stock Option within
(i) two years from the date of granting (including the date the Option is
modified, extended or renewed for purposes of Section 424(h) of the Code) such
Option to such Employee or (ii) one year after the transfer of such shares to
such Employee. The Committee may direct that the certificates evidencing shares
acquired by exercise of an Option refer to such requirement to give prompt
notice of disposition.
 
    5.6  LIMITATIONS ON EXERCISE OF OPTIONS GRANTED TO INDEPENDENT
DIRECTORS.  No Option granted to an Independent Director under Section 3.4(d)
may be exercised to any extent by anyone after the first to occur of the
following events:
 
    (a) The expiration of twelve (12) months from the date of the Optionee's
death;
 
    (b) the expiration of twelve (12) months from the date of the Optionee's
Termination of Directorship by reason of his permanent and total disability
(within the meaning of Section 22(e)(3) of the Code);
 
    (c) the expiration of three (3) months from the date of the Optionee's
Termination of Directorship for any reason other than such Optionee's death or
his permanent and total disability, unless the Optionee dies within said
three-month period; or
 
    (d) The expiration of ten (10) years from the date the Option was granted.
 
    5.7  ADDITIONAL LIMITATIONS ON EXERCISE OF OPTIONS.  Optionees may be
required to comply with any timing or other restrictions with respect to the
settlement or exercise of an Option, including a window-period limitation, as
may be imposed in the discretion of the Board or the Committee.
 
                                   ARTICLE VI
                           AWARD OF RESTRICTED STOCK
 
    6.1  ELIGIBILITY.  Subject to the Award Limit, Restricted Stock may be
awarded to any Employee who the Committee determines is a key Employee or any
consultant whom the Committee determines should receive such an award. In
addition, Independent Directors may be awarded Restricted Stock in lieu of
directors' fees, as provided in Section 6.2(d).
 
                                      F-10
<PAGE>
    6.2  AWARD OF RESTRICTED STOCK
 
    (a) The Committee may from time to time, in its absolute discretion:
 
        (i) Determine which Employees are key Employees and select from among
    the key Employees or consultants (including Employees or consultants who
    have previously received other awards under the Plan) such of them as in its
    opinion should be awarded Restricted Stock; and
 
        (ii) Determine the purchase price, if any, and other terms and
    conditions applicable to such Restricted Stock, consistent with the Plan.
 
    (b) The Committee shall establish the purchase price, if any, and form of
payment for Restricted Stock awarded to Employees or consultants; PROVIDED,
HOWEVER, that such purchase price shall be no less than the par value of the
Common Stock to be purchased, unless otherwise permitted by applicable state
law. In all cases, legal consideration shall be required for each issuance of
Restricted Stock.
 
    (c) Upon the selection of a key Employee or consultant to be awarded
Restricted Stock, the Committee shall instruct the Secretary of the Company to
issue such Restricted Stock and may impose such conditions on the issuance of
such Restricted Stock as it deems appropriate.
 
    (d) Restricted Stock may be awarded to Independent Directors in payment of a
portion of their directors' fees, pursuant to such policies which may be adopted
by the Board from time to time.
 
    6.3  AWARD AGREEMENT.  Restricted Stock shall be issued only pursuant to an
Award Agreement.
 
    6.4  RIGHTS AS STOCKHOLDERS.  Subject to Section 6.5, upon delivery of the
shares of Restricted Stock to the escrow holder pursuant to Section 6.7, the
Restricted Stockholder shall have, unless otherwise provided by the Committee
(or the Board, in the case of Restricted Stock awarded to Independent
Directors), all the rights of a stockholder with respect to said shares, subject
to the restrictions in his Award Agreement, including the right to receive all
dividends and other distributions paid or made with respect to the shares;
PROVIDED, HOWEVER, that in the discretion of the Committee (or the Board, in the
case of Restricted Stock awarded to Independent Directors), any extraordinary
distributions with respect to the Common Stock shall be subject to the
restrictions set forth in Section 6.5.
 
    6.5  RESTRICTION.  All shares of Restricted Stock issued under the Plan
(including any shares received by holders thereof with respect to shares of
Restricted Stock as a result of stock dividends, stock splits or any other form
of recapitalization) shall, in the terms of each individual Award Agreement, be
subject to such restrictions as the Committee (or the Board, in the case of
Restricted Stock awarded to Independent Directors) shall provide, which
restrictions may include, without limitation, restrictions concerning voting
rights and transferability and restrictions based on duration of employment with
the Company, Company performance and individual performance; PROVIDED, HOWEVER,
that, unless the Committee (or the Board, in the case of Restricted Stock
awarded to Independent Directors) otherwise provides in the terms of the Award
Agreement or otherwise, no share of Restricted Stock granted to a person subject
to Section 16 of the Exchange Act shall be sold, assigned or otherwise
transferred until at least six months and one day have elapsed from the date on
which the Restricted Stock was issued, and PROVIDED, FURTHER, that, except with
respect to shares of Restricted Stock granted pursuant to Section 6.9, by action
taken after the Restricted Stock is issued, the Committee (or the Board, in the
case of Restricted Stock awarded to Independent Directors) may, on such terms
and conditions as it may determine to be appropriate, remove any or all of the
restrictions imposed by the terms of the Award Agreement. Restricted Stock may
not be sold or encumbered until all restrictions are terminated or expire. If no
consideration was paid by the Restricted Stockholder upon issuance, a Restricted
Stockholder's rights in unvested Restricted Stock shall lapse upon Termination
of Employment or, if applicable, upon Termination of Consultancy with the
Company.
 
    6.6  REPURCHASE OF RESTRICTED STOCK.  The Committee (or the Board, in the
case of Restricted Stock awarded to Independent Directors) shall provide in the
terms of each individual Award Agreement that
 
                                      F-11
<PAGE>
the Company shall have the right to repurchase from the Restricted Stockholder
the Restricted Stock then subject to restrictions under the Award Agreement
immediately upon a Termination of Employment or, if applicable, upon a
Termination of Consultancy or Termination of Directorship between the Restricted
Stockholder and the Company, at a cash price per share equal to the price paid
by the Restricted Stockholder for such Restricted Stock.
 
    6.7  ESCROW.  The Secretary of the Company or such other escrow holder as
the Committee (or the Board, in the case of Restricted Stock awarded to
Independent Directors) may appoint shall retain physical custody of each
certificate representing Restricted Stock until all of the restrictions imposed
under the Award Agreement with respect to the shares evidenced by such
certificate expire or shall have been removed.
 
    6.8  LEGEND.  In order to enforce the restrictions imposed upon shares of
Restricted Stock hereunder, the Committee (or the Board, in the case of
Restricted Stock awarded to Independent Directors) shall cause a legend or
legends to be placed on certificates representing all shares of Restricted Stock
that are still subject to restrictions under Award Agreements, which legend or
legends shall make appropriate reference to the conditions imposed thereby.
 
    6.9  PROVISIONS APPLICABLE TO SECTION 162(M) PARTICIPANTS.
 
    (a) Notwithstanding anything in the Plan to the contrary, the Committee may
grant Restricted Stock to a Section 162(m) Participant the restrictions with
respect to which lapse upon the attainment of performance goals which are
related to one or more of the Performance Criteria.
 
    (b) To the extent necessary to comply with the performance-based
compensation requirements of Section 162(m)(4)(C) of the Code, with respect to
Restricted Stock which may be granted to one or more Section 162(m)
Participants, no later than ninety (90) days following the commencement of any
designated period of service (or such other time as may be required or permitted
by Section 162(m) of the Code), the Committee shall, in writing, (i) designate
one or more Section 162(m) Participants, (ii) select the Performance Criteria
applicable to the designated period of service, (iii) establish the various
performance targets, in terms of an objective formula or standard, and amounts
of Restricted Stock which may be earned for such fiscal year or other designated
fiscal period or period of service and (iv) specify the relationship between
Performance Criteria and the performance targets and the amounts of Restricted
Stock to be earned by each Section 162(m) Participant for such fiscal year or
other designated fiscal period or period of service. Following the completion of
each fiscal year or other designated fiscal period or period of service, the
Committee shall certify in writing whether the applicable performance targets
have been achieved for such fiscal year or other designated fiscal period or
period of service. In determining the amount earned by a Section 162(m)
Participant, the Committee shall have the right to reduce (but not to increase)
the amount payable at a given level of performance to take into account
additional factors that the Committee may deem relevant to the assessment of
individual or corporate performance for the fiscal year or other designated
fiscal period or period of service.
 
    6.10  SECTION 83(B) ELECTION.  If a Restricted Stockholder makes an election
under Section 83(b) of the Code, or any successor section thereto, to be taxed
with respect to the Restricted Stock as of the date of transfer of the
Restricted Stock rather than as of the date or dates upon which the Restricted
Stockholder would otherwise be taxable under Section 83(a) of the Code, the
Restricted Stockholder shall deliver a copy of such election to the Company
immediately after filing such election with the Internal Revenue Service.
 
                                      F-12
<PAGE>
                                  ARTICLE VII
                   PERFORMANCE AWARDS, DIVIDEND EQUIVALENTS,
                         DEFERRED STOCK, STOCK PAYMENTS
 
    7.1  ELIGIBILITY.  Subject to the Award Limit, one or more Performance
Awards, Dividend Equivalents, awards of Deferred Stock, and/or Stock Payments
may be granted to any Employee whom the Committee determines is a key Employee
or any consultant whom the Committee determines should receive such an award. In
addition, Independent Directors may be granted Stock Payments and Deferred Stock
in lieu of directors' fees, as provided in Sections 7.4 and 7.5.
 
    7.2  PERFORMANCE AWARDS.  Any key Employee or consultant selected by the
Committee may be granted one or more Performance Awards. The value of such
Performance Awards may be linked to any one or more of Performance Criteria or
other specific performance criteria determined appropriate by the Committee, in
each case on a specified date or dates or over any period or periods determined
by the Committee. In making such determinations, the Committee shall consider
(among such other factors as it deems relevant in light of the specific type of
award) the contributions, responsibilities and other compensation of the
particular key Employee or consultant.
 
    7.3  DIVIDEND EQUIVALENTS.  Any key Employee or consultant selected by the
Committee may be granted Dividend Equivalents based on the dividends declared on
Common Stock, to be credited as of dividend payment dates, during the period
between the date an Option, Stock Appreciation Right, Deferred Stock or
Performance Award is granted, and the date such Option, Stock Appreciation
Right, Deferred Stock or Performance Award is exercised, vests or expires, as
determined by the Committee. Such Dividend Equivalents shall be converted to
cash or additional shares of Common Stock by such formula and at such time and
subject to such limitations as may be determined by the Committee. With respect
to Dividend Equivalents granted with respect to Options intended to be qualified
performance-based compensation for purposes of Section 162(m) of the Code, such
Dividend Equivalents shall be payable regardless of whether such Option is
exercised.
 
    7.4  STOCK PAYMENTS.  Any key Employee or consultant selected by the
Committee may receive Stock Payments in the manner determined from time to time
by the Committee. The number of shares shall be determined by the Committee and
may be based upon the Performance Criteria or other specific performance
criteria determined appropriate by the Committee, determined on the date such
Stock Payment is made or on any date thereafter. During the term of the Plan, on
the date of each annual meeting of stockholders, each person who is an
Independent Director and who is entitled to receive a payment of cash fees on
such date shall be granted a Stock Payment, in lieu of cash fees which such
Independent Director would otherwise receive, which shall have an aggregate Fair
Market Value of $15,000 as of the date of such grant.
 
    7.5  DEFERRED STOCK.  Any key Employee or consultant selected by the
Committee may be granted an award of Deferred Stock in the manner determined
from time to time by the Committee. The number of shares of Deferred Stock shall
be determined by the Committee and may be linked to the Performance Criteria or
other specific performance criteria determined to be appropriate by the
Committee, in each case on a specified date or dates or over any period or
periods determined by the Committee. In addition, Deferred Stock may be granted
to Independent Directors in lieu of directors' fees which would otherwise be
payable to such Independent Directors, pursuant to such policies as may be
adopted by the Board from time to time. Common Stock underlying a Deferred Stock
award will not be issued until the Deferred Stock award has vested, pursuant to
a vesting schedule or performance criteria set by the Committee. Unless
otherwise provided by the Committee, a Grantee of Deferred Stock shall have no
rights as a Company stockholder with respect to such Deferred Stock until such
time as the award has vested and the Common Stock underlying the award has been
issued.
 
                                      F-13
<PAGE>
    7.6  AWARD AGREEMENT.  Each Performance Award, Dividend Equivalent, award of
Deferred Stock and/or Stock Payment shall be evidenced by an Award Agreement.
 
    7.7  TERM.  The term of a Performance Award, Dividend Equivalent, award of
Deferred Stock and/ or Stock Payment shall be set by the Committee (or the
Board, in the case of Awards granted to Independent Directors) in its
discretion.
 
    7.8  EXERCISE OR PURCHASE PRICE.  The Committee (or the Board, in the case
of Awards granted to Independent Directors) may establish the exercise or
purchase price of a Performance Award, shares of Deferred Stock, or shares
received as a Stock Payment; PROVIDED, HOWEVER, that such price shall not be
less than the par value for a share of Common Stock, unless otherwise permitted
by applicable state law.
 
    7.9  EXERCISE UPON TERMINATION OF EMPLOYMENT.  A Performance Award, Dividend
Equivalent, award of Deferred Stock and/or Stock Payment is exercisable or
payable only while the Grantee is an Employee or consultant; PROVIDED, HOWEVER,
that except with respect to Performance Awards granted pursuant to Section 7.11,
the Committee in its sole and absolute discretion may provide that the
Performance Awards may be exercised or paid following a Termination of
Employment or a Termination of Consultancy without cause, or following a change
in control of the Company, or because of the Grantee's retirement, death or
disability, or otherwise.
 
    7.10  PAYMENT ON EXERCISE.  Payment of the amount determined under Section
7.1 or 7.2 above shall be in cash, in Common Stock or a combination of both, as
determined by the Committee. To the extent any payment under this Article VII is
effected in Common Stock, it shall be made subject to satisfaction of all
provisions of Section 5.3.
 
    7.11  PROVISIONS APPLICABLE TO SECTION 162(M) PARTICIPANTS.
 
    (a) Notwithstanding anything in the Plan to the contrary, the Committee may
grant any performance or incentive awards described in Article VII to a Section
162(m) Participant that vest or become exercisable or payable upon the
attainment of performance goals which are related to one or more of the
Performance Criteria.
 
    (b) To the extent necessary to comply with the performance-based
compensation requirements of Section 162(m)(4)(C) of the Code, with respect to
performance or incentive awards described in Article VII which may be granted to
one or more Section 162(m) Participants, no later than ninety (90) days
following the commencement of any fiscal year in question or any other
designated fiscal period or period of service (or such other time as may be
required or permitted by Section 162(m) of the Code), the Committee shall, in
writing, (i) designate one or more Section 162(m) Participants, (ii) select the
Performance Criteria applicable to the fiscal year or other designated fiscal
period or period of service, (iii) establish the various performance targets, in
terms of an objective formula or standard, and bonus amounts which may be earned
for such fiscal year or other designated fiscal period or period of service and
(iv) specify the relationship between the Performance Criteria and performance
targets and the amounts to be earned by each Section 162(m) Participant for such
fiscal year or other designated fiscal period or period of service. Following
the completion of each fiscal year or other designated fiscal period or period
of service, the Committee shall certify in writing whether the applicable
performance targets have been achieved for such fiscal year or other designated
fiscal period or period of service. In determining the amount earned by a
Section 162(m) Participant, the Committee shall have the right to reduce (but
not to increase) the amount payable at a given level of performance to take into
account additional factors that the Committee may deem relevant to the
assessment of individual or corporate performance for the fiscal year or other
designated fiscal period or period of service.
 
                                      F-14
<PAGE>
                                  ARTICLE VIII
                           STOCK APPRECIATION RIGHTS
 
    8.1  GRANT OF STOCK APPRECIATION RIGHTS.  A Stock Appreciation Right may be
granted to any key Employee or consultant selected by the Committee. A Stock
Appreciation Right may be granted (i) in connection and simultaneously with the
grant of an Option, (ii) with respect to a previously granted Option, or (iii)
independent of an Option. A Stock Appreciation Right shall be subject to such
terms and conditions not inconsistent with the Plan as the Committee shall
impose and shall be evidenced by an Award Agreement. The Committee, in its
discretion, may determine whether a Stock Appreciation Right is to qualify as
performance-based compensation as described in Section 162(m)(4)(C) of the Code
and Award Agreements evidencing Stock Appreciation Rights intended to so qualify
shall contain such terms and conditions as may be necessary to meet the
applicable provisions of Section 162(m) of the Code.
 
    8.2  COUPLED STOCK APPRECIATION RIGHTS
 
    (a) A Coupled Stock Appreciation Right ("CSAR") shall be related to a
particular Option and shall be exercisable only when and to the extent the
related Option is exercisable.
 
    (b) A CSAR may be granted to the Grantee for no more than the number of
shares subject to the simultaneously or previously granted Option to which it is
coupled.
 
    (c) A CSAR shall entitle the Grantee (or other person entitled to exercise
the Option pursuant to the Plan) to surrender to the Company unexercised a
portion of the Option to which the CSAR relates (to the extent then exercisable
pursuant to its terms) and to receive from the Company in exchange therefor an
amount determined by multiplying the difference obtained by subtracting the
Option exercise price from the Fair Market Value of a share of Common Stock on
the date of exercise of the CSAR by the number of shares of Common Stock with
respect to which the CSAR shall have been exercised, subject to any limitations
the Committee may impose.
 
    8.3  INDEPENDENT STOCK APPRECIATION RIGHTS
 
    (a) An Independent Stock Appreciation Right ("ISAR") shall be unrelated to
any Option and shall have a term set by the Committee. An ISAR shall be
exercisable in such installments as the Committee may determine. An ISAR shall
cover such number of shares of Common Stock as the Committee may determine;
provided, however, that unless the Committee otherwise provides in the terms of
the ISAR or otherwise, no ISAR granted to a person subject to Section 16 of the
Exchange Act shall be exercisable until at least six months have elapsed from
(but excluding) the date on which the Option was granted. The exercise price per
share of Common Stock subject to each ISAR shall be set by the Committee. An
ISAR is exercisable only while the Grantee is an Employee or consultant;
provided that the Committee may determine that the ISAR may be exercised
subsequent to Termination of Employment or Termination of Consultancy without
cause, or following a Change in Control of the Company, or because of the
Grantee's retirement, death or disability, or otherwise.
 
    (b) An ISAR shall entitle the Grantee (or other person entitled to exercise
the ISAR pursuant to the Plan) to exercise all or a specified portion of the
ISAR (to the extent then exercisable pursuant to its terms) and to receive from
the Company an amount determined by multiplying the difference obtained by
subtracting the exercise price per share of the ISAR from the Fair Market Value
of a share of Common Stock on the date of exercise of the ISAR by the number of
shares of Common Stock with respect to which the ISAR shall have been exercised,
subject to any limitations the Committee may impose.
 
    8.4  PAYMENT AND LIMITATIONS ON EXERCISE
 
    (a) Payment of the amount determined under Section 8.2(c) and 8.3(b) above
shall be in cash, in Common Stock (based on its Fair Market Value as of the date
the Stock Appreciation Right is exercised) or a combination of both, as
determined by the Committee. To the extent such payment is effected in Common
Stock it shall be made subject to satisfaction of all provisions of Section 5.3
above pertaining to Options.
 
    (b) Grantees of Stock Appreciation Rights may be required to comply with any
timing or other restrictions with respect to the settlement or exercise of a
Stock Appreciation Right, including a window-period limitation, as may be
imposed in the discretion of the Board or Committee.
 
                                      F-15
<PAGE>
                                   ARTICLE IX
                                 ADMINISTRATION
 
    9.1  COMMITTEE.  The Human Resources Committee (or another committee or a
subcommittee of the Board assuming the functions of the Committee under the
Plan) shall consist solely of two or more Independent Directors appointed by and
holding office at the pleasure of the Board, each of whom is both a
"non-employee director" as defined by Rule 16b-3 and an "outside director" for
purposes of Section 162(m) of the Code. Appointment of Committee members shall
be effective upon acceptance of appointment. Committee members may resign at any
time by delivering written notice to the Board. Vacancies in the Committee may
be filled by the Board.
 
    9.2  DUTIES AND POWERS OF COMMITTEE.  It shall be the duty of the Committee
to conduct the general administration of the Plan in accordance with its
provisions. The Committee shall have the power to interpret the Plan and the
agreements pursuant to which Awards are granted or awarded, and to adopt such
rules for the administration, interpretation, and application of the Plan as are
consistent therewith and to interpret, amend or revoke any such rules.
Notwithstanding the foregoing, the full Board, acting by a majority of its
members in office, shall conduct the general administration of the Plan with
respect to Awards granted to Independent Directors. Any such grant or award
under the Plan need not be the same with respect to each Holder. Any such
interpretations and rules with respect to Incentive Stock Options shall be
consistent with the provisions of Section 422 of the Code. In its absolute
discretion, the Board may at any time and from time to time exercise any and all
rights and duties of the Committee under the Plan except with respect to matters
which under Rule 16b-3 or Section 162(m) of the Code, or any regulations or
rules issued thereunder, are required to be determined in the sole discretion of
the Committee.
 
    9.3  MAJORITY RULE; UNANIMOUS WRITTEN CONSENT.  The Committee shall act by a
majority of its members in attendance at a meeting at which a quorum is present
or by a memorandum or other written instrument signed by all members of the
Committee.
 
    9.4  COMPENSATION; PROFESSIONAL ASSISTANCE; GOOD FAITH ACTIONS.  Members of
the Committee shall receive such compensation, if any, for their services as
members as may be determined by the Board. All expenses and liabilities which
members of the Committee incur in connection with the administration of the Plan
shall be borne by the Company. The Committee may, with the approval of the
Board, employ attorneys, consultants, accountants, appraisers, brokers, or other
persons. The Committee, the Company and the Company's officers and Directors
shall be entitled to rely upon the advice, opinions or valuations of any such
persons. All actions taken and all interpretations and determinations made by
the Committee or the Board in good faith shall be final and binding upon all
Holders, the Company and all other interested persons. No members of the
Committee or Board shall be personally liable for any action, determination or
interpretation made in good faith with respect to the Plan or Awards, and all
members of the Committee and the Board shall be fully protected by the Company
in respect of any such action, determination or interpretation.
 
                                   ARTICLE X
                            MISCELLANEOUS PROVISIONS
 
    10.1  NON-TRANSFERABILITY.  No Award under the Plan may be sold, pledged,
assigned or transferred in any manner other than by will or the laws of descent
and distribution or pursuant to a QDRO unless and until such Award has been
exercised, or the shares underlying such Award have been issued, and all
restrictions applicable to such shares have lapsed. However, the Committee (or
the Board in the case of Awards granted to Independent Directors) may in its
discretion, permit a Holder to transfer an Award to a Permitted Transferee
subject to the following terms and conditions:
 
                                      F-16
<PAGE>
    (a) An Award transferred to a Permitted Transferee shall not be assignable
or transferable by the Permitted Transferee other than by will or the laws of
descent and distribution.
 
    (b) Any Award which is transferred to a Permitted Transferee shall continue
to be subject to all the terms and conditions of the Award as applicable to the
original holder (other than the ability to further transfer the Award).
 
    (c) The Holder and the Permitted Transferee shall execute any and all
documents reasonably requested by the Committee, including without limitation
documents to (i) confirm the status of the transferee as a Permitted Transferee,
(ii) satisfy any requirements for an exemption for the transfer under applicable
federal and state securities laws and (iii) evidence the transfer.
 
    (d) Shares of Common Stock acquired by a Permitted Transferee through
exercise of an Option have not been registered under the Securities Act or any
state securities act and may not be transferred, nor will any assignee or
transferee thereof be recognized as an owner of such shares of Common Stock for
any purpose, unless a registration statement under the Securities Act and any
applicable state securities act with respect to such shares shall then be in
effect or unless the availability of an exemption from registration with respect
to any proposed transfer or disposition of such shares shall be established to
the satisfaction of counsel for the Company.
 
    No Award or interest or right therein shall be liable for the debts,
contracts or engagements of the Holder or his successors in interest or shall be
subject to disposition by transfer, alienation, anticipation, pledge,
encumbrance, assignment or any other means whether such disposition be voluntary
or involuntary or by operation of law by judgment, levy, attachment, garnishment
or any other legal or equitable proceedings (including bankruptcy), and any
attempted disposition thereof shall be null and void and of no effect, except to
the extent that such disposition is permitted by the preceding provisions of
this Section 10.1.
 
    10.2  AMENDMENT, SUSPENSION OR TERMINATION OF THE PLAN.  Except as otherwise
provided in this Section 10.2, the Plan may be wholly or partially amended or
otherwise modified, suspended or terminated at any time or from time to time by
the Board or the Committee. However, without approval of the Company's
stockholders given within twelve months before or after the action by the Board
or the Committee, no action of the Board or the Committee may, except as
provided in Section 10.3, increase the limits imposed in Section 2.1 on the
maximum number of shares which may be issued under the Plan. No amendment,
suspension or termination of the Plan shall, without the consent of the Holder
alter or impair any rights or obligations under any Award theretofore granted or
awarded, unless the Award itself otherwise expressly so provides. No Awards may
be granted or awarded during any period of suspension or after termination of
the Plan, and in no event may any Incentive Stock Option be granted under the
Plan after the first to occur of the following events: (i) the expiration of ten
years from the date the Plan is adopted by the Board or (ii) the expiration of
ten years from the date the Plan is approved by the Company's stockholders under
Section 10.4. In addition, if the Board determines that Awards other than
Options or Stock Appreciation Rights which may be granted to Section 162(m)
Participants should continue to be eligible to qualify as performance-based
compensation under Section 162(m)(4)(C) of the Code, the Performance Criteria
must be disclosed to and reapproved by the Company's stockholders no later than
the first stockholder meeting that occurs in the fifth year following the year
in which the Company's stockholders previously approved the Performance
Criteria.
 
    10.3  CHANGES IN COMMON STOCK OR ASSETS OF THE COMPANY, ACQUISITION OR
LIQUIDATION OF THE COMPANY AND OTHER CORPORATE EVENTS.
 
    (a) Subject to Section 10.3(d), in the event that the Committee (or the
Board, in the case of Awards granted to Independent Directors) determines that
any dividend or other distribution (whether in the form of cash, Common Stock,
other securities, or other property), recapitalization, reclassification, stock
split, reverse stock split, reorganization, merger, consolidation, split-up,
spin-off, combination, repurchase,
 
                                      F-17
<PAGE>
liquidation, dissolution, or sale, transfer, exchange or other disposition of
all or substantially all of the assets of the Company (including, but not
limited to, a Corporate Transaction), or exchange of Common Stock or other
securities of the Company, issuance of warrants or other rights to purchase
Common Stock or other securities of the Company, or other similar corporate
transaction or event, in the Committee's sole discretion (or in the case of
Awards granted to Independent Directors, the Board's sole discretion), affects
the Common Stock such that an adjustment is determined by the Committee to be
appropriate in order to prevent dilution or enlargement of the benefits or
potential benefits intended to be made available under the Plan or with respect
to an Award, then the Committee (or the Board, in the case of Awards granted to
Independent Directors) shall, in such manner as it may deem equitable, adjust
any or all of
 
        (i) the number and kind of shares of Common Stock (or other securities
    or property) with respect to which Awards may be granted or awarded
    (including, but not limited to, adjustments of the limitations in Section
    2.1 on the maximum number and kind of shares which may be issued and
    adjustments of the Award Limit),
 
        (ii) the number and kind of shares of Common Stock (or other securities
    or property) subject to outstanding Options, Performance Awards, Stock
    Appreciation Rights, Dividend Equivalents, or Stock Payments, and in the
    number and kind of shares of outstanding Restricted Stock or Deferred Stock,
    and
 
       (iii) the grant or exercise price with respect to any Award.
 
    (b) Subject to Section 10.3(d), in the event of any Corporate Transaction or
other transaction or event described in Section 10.3(a) or any unusual or
nonrecurring transactions or events affecting the Company, any affiliate of the
Company, or the financial statements of the Company or any affiliate, or of
changes in applicable laws, regulations, or accounting principles, the Committee
(or the Board, in the case of Awards granted to Independent Directors) in its
discretion is hereby authorized to take any one or more of the following actions
whenever the Committee (or the Board, in the case of Awards granted to
Independent Directors) determines that such action is appropriate in order to
prevent dilution or enlargement of the benefits or potential benefits intended
to be made available under the Plan or with respect to any option, right or
other award under the Plan, to facilitate such transactions or events or to give
effect to such changes in laws, regulations or principles:
 
        (i) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may provide, either by the terms
    of the agreement or by action taken prior to the occurrence of such
    transaction or event and either automatically or upon the Holder's request,
    for either the purchase of any such Award for an amount of cash equal to the
    amount that could have been attained upon the exercise of such Award or
    realization of the Holder's rights had such Award been currently exercisable
    or payable or fully vested or the replacement of such Award with other
    rights or property selected by the Committee (or the Board, in the case of
    Awards granted to Independent Directors) in its sole discretion;
 
        (ii) In its sole and absolute discretion, the Committee (or the Board,
    in the case of Awards granted to Independent Directors) may provide, either
    by the terms of such Award or by action taken prior to the occurrence of
    such transaction or event that it cannot vest, be exercised or become
    payable after such event;
 
       (iii) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may provide, either by the terms
    of such Award or by action taken prior to the occurrence of such transaction
    or event, that for a specified period of time prior to such transaction or
    event, such Award shall be
 
                                      F-18
<PAGE>
    exercisable as to all shares covered thereby, notwithstanding anything to
    the contrary in (i) Section 4.4 or (ii) the provisions of such Award;
 
        (iv) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may provide, either by the terms
    of such Award or by action taken prior to the occurrence of such transaction
    or event, that upon such event, such Award be assumed by the successor or
    survivor corporation, or a parent or subsidiary thereof, or shall be
    substituted for by similar options, rights or awards covering the stock of
    the successor or survivor corporation, or a parent or subsidiary thereof,
    with appropriate adjustments as to the number and kind of shares and prices;
    and
 
        (v) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may make adjustments in the
    number and type of shares of Common Stock (or other securities or property)
    subject to outstanding Awards, and in the number and kind of outstanding
    Restricted Stock or Deferred Stock and/or in the terms and conditions of
    (including the grant or exercise price), and the criteria included in,
    outstanding options, rights and awards and options, rights and awards which
    may be granted in the future.
 
        (vi) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee may provide either by the
    terms of a Restricted Stock award or Deferred Stock award or by action taken
    prior to the occurrence of such event that, for a specified period of time
    prior to such event, the restrictions imposed under an Award Agreement upon
    some or all shares of Restricted Stock or Deferred Stock may be terminated,
    and, in the case of Restricted Stock, some or all shares of such Restricted
    Stock may cease to be subject to repurchase under Section 6.5 or forfeiture
    under Section 6.4 after such event.
 
       (vii) Notwithstanding any other provision of the Plan, in the event of
    Change in Control, each outstanding Award shall, immediately prior to the
    effective date of the Change in Control, automatically become fully
    exercisable for all of the shares of Common Stock at the time subject to
    such rights and may be exercised for any or all of those shares as
    fully-vested shares of Common Stock.
 
    (c) Subject to Section 10.3(d) and 10.8, the Committee (or the Board, in the
case of Awards granted to Independent Directors) may, in its discretion, include
such further provisions and limitations in any Award, agreement or certificate,
as it may deem equitable and in the best interests of the Company.
 
    (d) With respect to Awards described in Article VI or VII which are granted
to Section 162(m) Participants and are intended to qualify as performance-based
compensation under Section 162(m)(4)(C), no adjustment or action described in
this Section 10.3 or in any other provision of the Plan shall be authorized to
the extent that such adjustment or action would cause the Plan to violate
Section 422(b)(1) of the Code or would cause such Award to fail to so qualify
under Section 162(m)(4)(C), as the case may be, or any successor provisions
thereto. Furthermore, no such adjustment or action shall be authorized to the
extent such adjustment or action would result in short-swing profits liability
under Section 16 or violate the exemptive conditions of Rule 16b-3 unless the
Committee (or the Board, in the case of Awards granted to Independent Directors)
determines that the option or other award is not to comply with such exemptive
conditions. The number of shares of Common Stock subject to any Award shall
always be rounded to the next whole number.
 
    10.4  APPROVAL OF PLAN BY STOCKHOLDERS.  The Plan will be submitted for the
approval of the Company's stockholders within twelve months after the date of
the Board's initial adoption of the Plan. Awards may be granted or awarded prior
to such stockholder approval, provided that such Awards shall not be exercisable
or shall not vest prior to the time when the Plan is approved by the
stockholders, and provided further that if such approval has not been obtained
at the end of said twelve-month period, all Awards previously granted or awarded
under the Plan shall thereupon be canceled and become null and void.
 
                                      F-19
<PAGE>
    10.5  TAX WITHHOLDING.  The Company shall be entitled to require payment in
cash or deduction from other compensation payable to each Holder of any sums
required by federal, state or local tax law to be withheld with respect to the
issuance, vesting, exercise or payment of any Award. The Committee (or the
Board, in the case of Awards granted to Independent Directors) may in its
discretion and in satisfaction of the foregoing requirement allow such Holder to
elect to have the Company withhold shares of Common Stock otherwise issuable
under such Award (or allow the return of shares of Common Stock) having a Fair
Market Value equal to the sums required to be withheld.
 
    10.6  LOANS.  The Committee may, in its discretion, extend one or more loans
to key Employees in connection with the exercise or receipt of an Award granted
or awarded under the Plan, or the issuance of Restricted Stock or Deferred Stock
awarded under the Plan. The terms and conditions of any such loan shall be set
by the Committee.
 
    10.7  FORFEITURE PROVISIONS.  Pursuant to its general authority to determine
the terms and conditions applicable to Awards under the Plan, the Committee (or
the Board, in the case of Awards granted to Independent Directors) shall have
the right (to the extent consistent with the applicable exemptive conditions of
Rule 16b-3) to provide, in the terms of Awards made under the Plan, or to
require a Holder to agree by separate written instrument, that (i) any proceeds,
gains or other economic benefit actually or constructively received by the
Holder upon any receipt or exercise of the Award, or upon the receipt or resale
of any Common Stock underlying the Award, must be paid to the Company, and (ii)
the Award shall terminate and any unexercised portion of the Award (whether or
not vested) shall be forfeited, if (a) a Termination of Employment, Termination
of Consultancy or Termination of Directorship occurs prior to a specified date,
or within a specified time period following receipt or exercise of the Award, or
(b) the Holder at any time, or during a specified time period, engages in any
activity in competition with the Company, or which is inimical, contrary or
harmful to the interests of the Company, as further defined by the Committee (or
the Board, as applicable) or the Holder incurs a Termination of Employment,
Termination of Consultancy or Termination of Directorship for cause.
 
    10.8  LIMITATIONS APPLICABLE TO SECTION 16 PERSONS AND PERFORMANCE-BASED
COMPENSATION.  Notwithstanding any other provision of the Plan, the Plan, and
any Award granted or awarded to any individual who is then subject to Section 16
of the Exchange Act, shall be subject to any additional limitations set forth in
any applicable exemptive rule under Section 16 of the Exchange Act (including
any amendment to Rule 16b-3 of the Exchange Act) that are requirements for the
application of such exemptive rule. To the extent permitted by applicable law,
the Plan and Awards granted or awarded hereunder shall be deemed amended to the
extent necessary to conform to such applicable exemptive rule. Furthermore,
notwithstanding any other provision of the Plan or any Award described in
Article VI or VII which is granted to a Section 162(m) Participant and is
intended to qualify as performance-based compensation as described in Section
162(m)(4)(C) of the Code shall be subject to any additional limitations set
forth in Section 162(m) of the Code (including any amendment to Section 162(m)
of the Code) or any regulations or rulings issued thereunder that are
requirements for qualification as performance-based compensation as described in
Section 162(m)(4)(C) of the Code, and the Plan shall be deemed amended to the
extent necessary to conform to such requirements.
 
    10.9  AT-WILL EMPLOYMENT.  Nothing in the Plan or in any Award or agreement
hereunder shall confer upon any Holder any right to continue in the employ of,
or as a consultant for, the Company or any Subsidiary, or as a director of the
Company, or shall interfere with or restrict in any way the rights of the
Company and any Subsidiary, which are hereby expressly reserved, to discharge
any Holder at any time for any reason whatsoever, with or without good cause,
except to the extent expressly provided otherwise in a written employment
agreement between the Holder and the Company and any Subsidiary.
 
    10.10  EFFECT OF PLAN UPON OPTIONS AND COMPENSATION PLANS.  The adoption of
the Plan shall not affect any other compensation or incentive plans in effect
for the Company or any Subsidiary. Nothing in the Plan shall be construed to
limit the right of the Company (i) to establish any other forms of incentives
 
                                      F-20
<PAGE>
or compensation for Employees, Directors or Consultants of the Company or any
Subsidiary or (ii) to grant or assume options or other rights or awards
otherwise than under the Plan in connection with any proper corporate purpose
including but not by way of limitation, the grant or assumption of options in
connection with the acquisition by purchase, lease, merger, consolidation or
otherwise, of the business, stock or assets of any corporation, partnership,
limited liability company, firm or association.
 
    10.11  COMPLIANCE WITH LAWS.  The Plan, the granting and vesting of Awards
under the Plan and the issuance and delivery of shares of Common Stock and the
payment of money under the Plan or under Awards granted or awarded hereunder are
subject to compliance with all applicable federal and state laws, rules and
regulations (including but not limited to state and federal securities law and
federal margin requirements) and to such approvals by any listing, regulatory or
governmental authority as may, in the opinion of counsel for the Company, be
necessary or advisable in connection therewith. Any securities delivered under
the Plan shall be subject to such restrictions, and the person acquiring such
securities shall, if requested by the Company, provide such assurances and
representations to the Company as the Company may deem necessary or desirable to
assure compliance with all applicable legal requirements. To the extent
permitted by applicable law, the Plan and Awards granted or awarded hereunder
shall be deemed amended to the extent necessary to conform to such laws, rules
and regulations.
 
    10.12  TITLES.  Titles are provided herein for convenience only and are not
to serve as a basis for interpretation or construction of the Plan.
 
    10.13  GOVERNING LAW.  The Plan and any agreements hereunder shall be
administered, interpreted and enforced under the internal laws of the State of
Delaware without regard to conflicts of laws thereof.
 
                                     * * *
 
    I hereby certify that the foregoing Plan was duly adopted by the Board of
Directors of Parent Holding Corp. (to be renamed Promus Hotel Corporation) on
              , 1997.
 
    Executed on this     day of               , 1997.
 
                                          --------------------------------------
 
                                                        Secretary
 
                                      F-21
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    Subsection (a) of Section 145 of the DGCL empowers a corporation to
indemnify any person who was or is a party or is threatened to be made a party
to any threatened, pending or completed action, suit or proceeding, whether
civil, criminal, administrative or investigative (other than an action by or in
the right of the corporation) by reason of the fact that he is or was a
director, officer, employee or agent of the corporation, or is or was serving at
the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expenses (including attorneys' fees) judgments, fines and amounts paid
in settlement actually and reasonably incurred by him in connection with such
action, suit or proceeding if he acted in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the
corporation, and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful.
 
    Subsection (b) of Section 145 of the DGCL empowers a corporation to
indemnify any person who was or is a party or is threatened to be made a party
to any threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor by reason of the fact that he
acted in any of the capacities set forth above, against expenses (including
attorneys' fees) actually and reasonably incurred by him in connection with the
defense or settlement of such action or suit if he acted under similar
standards, except that no indemnification may be made in respect to any claim,
issue or matter as to which such person shall have been adjudged to be liable to
the corporation unless and only to the extent that the Court of Chancery or the
court in which action or suit was brought shall determine upon application that,
despite the adjudication of liability but in view of all the circumstances of
the case, such person is fairly and reasonably entitled to indemnification for
such expenses which the Court of Chancery or such other court shall deem proper.
 
    Section 145 of the DGCL further provides that, to the extent that a director
or officer of a corporation has been successful on the merits or otherwise in
defense of any action, suit or proceeding referred to in subsections (a) and (b)
of Section 145, or in the defense of any claim, issue or matter therein, he
shall be indemnified against expenses (including attorneys' fees) actually and
reasonably incurred by him in connection therewith; and that indemnification
provided by, or granted pursuant to, Section 145 shall not be deemed exclusive
of any other rights to which those seeking indemnification may be entitled.
Section 145 further empowers the corporation to purchase and maintain insurance
on behalf of any person who is or was serving at the request of the corporation
as a director, officer, employee or agent of another corporation, partnership,
joint venture, trust or other enterprise, against any liability asserted against
him and incurred by him in any such capacity, or arising out of his status as
such, whether or not the corporation would have the power to indemnify him
against such liabilities under Section 145 of the DGCL.
 
    Article tenth of the Registrant's Certificate of Incorporation provides, in
detail, for the indemnification of directors, officers and employees of the
Registrant to the fullest extent permitted under Section 145 of the DGCL.
 
    Section 102(b)(7) of the DGCL enables a Delaware corporation to provide in
its certificate of incorporation for the elimination or limitation of the
personal liability of a director to the corporation or its stockholders for
monetary damages for breach of fiduciary duty as a director. Any such provision
cannot eliminate or limit a director's liability (1) for any breach of the
director's duty of loyalty to the corporation or its stockholders; (2) for acts
or omissions not in good faith or which involve intentional misconduct or a
knowing violation of law; (3) under Section 174 of the DGCL (which imposes
liability on directors for unlawful payment of dividends or unlawful stock
purchase or redemption); or (4) for any transaction from
 
                                      II-1
<PAGE>
which the director derived an improper personal benefit. Article Thirteenth of
the Certificate of Incorporation of Promus eliminates the liability of a
director of Promus to Promus or its stockholders for monetary damages for breach
of fiduciary duty as a director to the full extent permitted by the DGCL.
 
    Under the Merger Agreement, for a period of six years after the Effective
Time (as defined in the Merger Agreement), the Registrant is required to
maintain or shall cause the Surviving Corporations (as defined in the Merger
Agreement) to maintain (to the extent available in the market) in effect a
directors' and officers' liability insurance policy covering those persons who
are currently covered by Doubletree's or Promus's directors' and officers'
liability insurance policy with coverage in amount at least as favorable as
Doubletree's or Promus's existing coverage; provided that in no event is the
Registrant or the Surviving Corporations required to expend in the aggregate in
excess of 200% of the annual premium currently paid by Doubletree and Promus for
such coverage. If the premium would exceed 200% of such amount, then the
Registrant or the Surviving Corporations in required to maintain insurance
policies which provide the maximum and best coverage available at an annual
premium equal to 200% of such amount. Additionally, the Merger Agreement
requires that the Registrant defend and hold harmless each person who prior to
the Closing Date was or became an officer or director of Doubletree or Promus
against all liabilities (and shall advance expenses related thereto) arising out
of the fact that such person was an officer or director of such entities to the
full extent that would have been permitted under Delaware law and the
certificate of incorporation or bylaws of such entities. See "The Merger
Agreement--Certain Covenants--Director and Officer Indemnification."
 
    The Registrant carries policies of insurance which cover the individual
directors and officers of the Registrant for legal liability and which would pay
on behalf of the Registrant for expenses of indemnification of directors and
officers in accordance with the Certificate of Incorporation.
 
ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
(a) Exhibits
 
<TABLE>
<CAPTION>
   EXHIBIT
    NUMBER      DESCRIPTION
- --------------  --------------------------------------------------------------------------------------------------------
<C>             <S>
         2(1)   Agreement and Plan of Merger, dated September 1, 1997, by and among Doubletree Corporation
                  ("Doubletree"), Promus Hotel Corporation ("Promus") and the Registrant (1)
 
         2(2)   Amendment Agreement, dated October 1, 1997, by and among Doubletree Acquisition Corp. and Promus
                  Acquisition Corp. (2)
 
         3(1)   Form of Restated Certificate of Incorporation of the Registrant (2)
 
         3(2)   Form of Amended and Restated Bylaws of the Registrant (2)
 
         4(1)   Form of Rights Agreement between the Registrant and First Union National Bank (2)
 
         4(2)   Form of Registration Rights Agreement to be entered by the Registrant and certain Stockholders of the
                  Registrant (2)
 
         5(1)   Opinion of Latham & Watkins as to the legality of the securities being registered (2)
 
         8(1)   Opinion of Latham & Watkins regarding certain tax matters (2)
 
         8(2)   Opinion of Dewey Ballantine LLP regarding certain tax matters (2)
 
        10(1)   Form of Employment Agreement of Raymond E. Schultz (2)
 
        10(2)   Form of Employment Agreement of Richard M. Kelleher (2)
 
        10(3)   Form of Employment Agreement of Thomas L. Keltner (2)
 
        10(4)   Form of Employment Agreement of William L. Perocchi (2)
</TABLE>
 
                                      II-2
<PAGE>
<TABLE>
<CAPTION>
   EXHIBIT
    NUMBER      DESCRIPTION
- --------------  --------------------------------------------------------------------------------------------------------
<C>             <S>
        10(5)   Form of Severance Agreement of Raymond E. Schultz (2)
 
        10(6)   Form of Severance Agreement of Richard M. Kelleher (2)
 
        10(7)   Form of Severance Agreement of Thomas L. Keltner (2)
 
        10(8)   Form of Severance Agreement of William L. Perocchi (2)
 
        10(9)   Form of Severance Agreement for Tier I employees of Doubletree (2)
 
        10(10)  Form of Severance Agreement for Tier I employees of Promus (2)
 
        10(11)  Form of Severance Agreement for Tier II employees of Doubletree and Promus
 
        10(12)  Form of Severance Agreement for Tier III employees of Doubletree (2)
 
        10(13)  Form of Severance Plan for Regional Offices Directors and Managers of Promus (2)
 
        10(14)  Form of Severance Plan for Corporate Headquarters and Regional Offices Administrative Staff of
                  Doubletree and Promus (2)
 
        10(15)  Form of Indemnification Agreement for directors and executive officers of the Registrant (2)
 
        10(16)  New Promus 1997 Equity Participation Plan (2)
 
        10(17)  Promus Hotel Corporation 1995 Stock Option Plan (3)
 
        10(18)  Form of Amendment to the 1995 Promus Hotel Corporation Stock Option Plan, dated as of November 13, 1996
                  (4)
 
        10(19)  Promus Hotel Corporation 1995 Restricted Stock Plan (5)
 
        10(20)  Form of Amendment to the 1995 Restricted Stock Plan dated as of November 13, 1996 (4)
 
        10(21)  Promus Hotel Corporation Non-Management Directors Stock Incentive Plan (6)
 
        10(22)  Form of Amendment to the Promus Hotel Corporation 1996 Non-Management Directors Stock Incentive Plan
                  dated as of December 23, 1996 (4)
 
        10(23)  1997 Amended and Restated Equity Participation Plan, adopted by Doubletree Corporation on May 2, 1997
                  (7)
 
        10(24)  Promus Hotel Corporation Key Executive Officer Annual Incentive Plan (8)
 
        10(25)  Promus Hotel Corporation Executive Deferred Compensation Plan (9)
 
        10(26)  Promus Hotel Corporation Deferred Compensation Plan (9)
 
        10(27)  Promus Hotel Corporation Bonus Replacement Options Plan (10)
 
        10(28)  Administrative Regulations, Long Term Compensation Plan (Restricted Stock Plan and Stock Option Plan),
                  dated as of January 1, 1992, adopted by Promus Hotel Corporation on April 5, 1995 (11)
 
        10(29)  The Restatement of the Promus Hotel Corporation Savings and Retirement Plan-A, dated as of June 30, 1995
                  (12)
 
        10(30)  Amendment to the Promus Hotel Corporation Savings and Retirement Plan-A, dated as of June 30, 1995 (12)
 
        10(31)  The Restatement of the Promus Hotel Corporation Savings and Retirement Plan-B, dated as of June 30, 1995
                  (12)
 
        10(32)  Amendment to the Promus Hotel Corporation Savings and Retirement Plan-B, dated as of June 30, 1995 (12)
</TABLE>
 
                                      II-3
<PAGE>
<TABLE>
<CAPTION>
   EXHIBIT
    NUMBER      DESCRIPTION
- --------------  --------------------------------------------------------------------------------------------------------
<C>             <S>
        10(33)  Promus Hotel Corporation Savings and Retirement Plan Trust Agreement, dated as of May 26, 1995, among
                  Promus Hotel Corporation and Robert S. Davis, Donald H. Dempsey, Patricia R. Ferguson, Jeffery M.
                  Jarvis, Kelly R. Jenkins, Frederick G. Schultz and Mark C. Wells, as trustees (9)
 
        10(34)  Financial Counseling Plan of The Promus Companies Incorporated as amended February 25, 1993, as adopted
                  by Promus Hotel Corporation on April 5, 1995 (13)
 
        10(35)  Summary Plan Description of Executive Term Life Insurance Plan adopted by Promus Hotel Corporation on
                  April 5, 1995 (14)
 
        10(36)  Red Lion Supplemental Employee Retirement Plan (15)
 
        10(37)  Plan of Reorganization and Distribution Agreement, dated as of June 30, 1995, between The Promus
                  Companies Incorporated and Promus Hotel Corporation (16)
 
        10(38)  Employee Benefits and Other Employment Matters Allocation Agreement, dated as of June 30, 1995, between
                  The Promus Companies Incorporated and Promus (16)
 
        10(39)  Risk Management Allocation Agreement, dated as of June 30, 1995, between The Promus Companies
                  Incorporated and Promus (16)
 
        10(40)  Tax Sharing Agreement, dated as of June 30, 1995, between The Promus Companies Incorporated and Promus
                  (16)
 
        10(41)  Form of Guarantee Agreement, dated February 5, 1996, among Promus, Promus Hotels, Inc., Canadian
                  Imperial Bank of Commerce, as agent for the Lenders, FelCor Suites Limited Partnership, FelCor/CSS
                  Holdings, L.P., and FelCor Suite Hotels, Inc. (18)
 
        10(42)  Acquisition Agreement, dated as of November 15, 1990, among Metropolitan LifeInsurance Company,
                  MetHotels, Inc., Canadian Pacific Hotels Corporation and CPHotels Merger Co. (20)
 
        10(43)  Hotel Chain Combination Agreement, dated as of December 8, 1993, among Canadian Pacific Hotels (U.S.)
                  Inc., MetPark Funding, Inc. and GQ Owners, L.P. (21)
 
        10(44)  Amendment to the Hotel Chain Combination Agreement, dated as of June 30, 1994 (21)
 
        10(45)  Tax Matters Agreement, dated as of December 16, 1993, among Canadian PacificLimited, Canadian Pacific
                  Hotels (U.S.) Inc. and GQ Owners, L.P. (20)
 
        10(46)  Amendment to the Tax Matters Agreement, dated as of June 30, 1994 (21)
 
        10(47)  Assignment, Assumption and Modification Agreement, dated as of December 16, 1993,among Metropolitan Life
                  Insurance Company, Canadian Pacific Hotels Corporation,Doubletree Hotels Corporation and Doubletree
                  Partners (20)
 
        10(48)  Agreement Regarding Liquidation of GQ Owners, L.P., dated as of November 30, 1994, among GEHOP, Ridge
                  Partners, L.P., The Ueberroth Family Trust, The Ueberroth Investment Trust and GQ Equities Limited
                  (22)
 
        10(49)  Form of Stock Purchase Agreement between Promus Hotels, Inc. and Winston Hotels, Inc. dated as of April
                  24, 1996 (4)
 
        10(50)  Form of Amendment No. 1 to Stock Purchase Agreement between Promus Hotels, Inc. and Winston Hotels, Inc.
                  dated as of August 7, 1996 (4)
 
        10(51)  Form of Stock Purchase Agreement between Promus Hotels, Inc. and Equity Inns, Inc. and Equity Inns
                  Partnership, L.P. dated as of May 31, 1996 (4)
</TABLE>
 
                                      II-4
<PAGE>
<TABLE>
<CAPTION>
   EXHIBIT
    NUMBER      DESCRIPTION
- --------------  --------------------------------------------------------------------------------------------------------
<C>             <S>
        10(52)  Stockholders Agreement dated as of September 30, 1996 between Doubletree, Jack DeBoer, the Alexander
                  John DeBoer Trust dated March 14, 1995, the Christopher Scott DeBoer Trust dated March 14, 1995 and
                  the Warren D. Fix Family Partnership, L.P. (15)
 
        10(53)  Securities Purchase Agreement dated as of October 31, 1996 by and between Doubletree and the Trustees of
                  General Electric Pension Trust (19)
 
        10(54)  Partnership Services Agreement dated as of November 8, 1996 by and amongDoubletree, Red Lion Hotels,
                  Inc., Red Lion, a California Limited Partnership and the affiliates thereof identified therein (19)
 
        10(55)  Master Agreement, dated as of February 1, 1996, by and among RFS Partnership, L.P., Doubletree, RFS
                  Hotel Investors, Inc., Seedling Merger Subsidiary, Inc. and RFS, Inc. (23)
 
        10(56)  First Amendment to Master Agreement by and among RFS Partnership, L.P., Doubletree, RFS Hotel Investors,
                  Inc., Seedling Merger Subsidiary, Inc. and RFS, Inc. dated November 21, 1996 (15)
 
        10(57)  Master Lease dated August 1, 1995 between RLH Partnership, L.P. and Red LionHotels, Inc. (19)
 
        10(58)  Assignment and Assumption Agreement dated August 1, 1995 between Red Lion, aCalifornia Limited
                  Partnership and Red Lion Hotels, Inc. (19)
 
        10(59)  Consolidated Lease Amendment, dated as of February 27, 1996, by and between RFS, Inc. and RFS
                  Partnership, L.P. (23)
 
        10(60)  Guaranty of Lease Obligations dated as of November 8, 1996 by and among Doubletree, Red Lion Hotels,
                  Inc. and RLH Partnership, L.P. (19)
 
        10(61)  Guaranty Agreement, dated December 31, 1996, by Doubletree in favor of GMAC Commercial Mortgage
                  Corporation (15)
 
        10(62)  Form of Aircraft Agreement, dated August 4, 1995, between Promus Hotels, Inc., and Harrah's Operating
                  Company, Inc. (17)
 
        10(63)  Employment Agreement of Richard M. Kelleher, dated as of January 13, 1995 (15)
 
        21(1)   Subsidiaries of the Registrant (2)
 
        23(1)   Consent of KPMG Peat Marwick LLP (2)
 
        23(2)   Consent of Arthur Andersen LLP (2)
 
        23(3)   Consent of Deloitte & Touche LLP (2)
 
        23(4)   Consent of Arthur Andersen LLP (2)
 
        23(5)   Consent of Morgan Stanley & Co. Incorporated
 
        23(6)   Consent of BT Wolfensohn
 
        23(7)   Consent of Latham & Watkins (included in the opinion filed as Exhibit 5(1) and 8(1))
 
        23(8)   Consent of Dewey Ballantine LLP (included in the opinion filed as Exhibit 8(2))
 
        24(1)   Power of Attorney (included in signature pages contained in this Registration Statement)
 
        99(1)   Consent of Richard J. Ferris (2)
 
        99(2)   Consent of Priscilla Florence (2)
 
        99(3)   Consent of Dale F. Frey (2)
</TABLE>
 
                                      II-5
<PAGE>
<TABLE>
<CAPTION>
   EXHIBIT
    NUMBER      DESCRIPTION
- --------------  --------------------------------------------------------------------------------------------------------
<C>             <S>
        99(4)   Consent of Michael W. Michelson (2)
 
        99(5)   Consent of John H. Myers (2)
 
        99(6)   Consent of Peter V. Ueberroth (2)
 
        99(7)   Consent of Christopher W. Hart (2)
 
        99(8)   Consent of C. Warren Neel (2)
 
        99(9)   Consent of Michael D. Rose (2)
 
        99(10)  Consent of Michael I. Roth (2)
 
        99(11)  Consent of Jay Stein (2)
 
        99(12)  Consent of Ronald Terry (2)
</TABLE>
 
- ------------------------
 
(1) Incorporated by reference from Promus's Current Report on Form 8-K, filed
    September 5, 1997, File No. 1-11463.
 
(2) Filed herewith.
 
(3) Incorporated by reference from the Proxy Statement of The Promus Companies
    Incorporated ("PCI"), Annex III-A, dated April 25, 1995, File No. 1-10410.
 
(4) Incorporated by reference from Promus's Annual Report on Form 10-K for the
    fiscal year ended December 31, 1996, filed March 18, 1997, File No. 1-11463
 
(5) Incorporated by reference from PCI's Proxy Statement, Annex III-B, dated
    April 25, 1995, File No. 1-10410.
 
(6) Incorporated by reference from PCI's Proxy Statement, Annex VIII, dated
    April 25, 1995, File No. 1-10410.
 
(7) Incorporated by reference from Doubletree's Proxy Statement, Appendix A,
    dated March 28, 1997, File No. 0-24392.
 
(8) Incorporated by reference from PCI's Proxy Statement, Annex VII, dated April
    25, 1995, File No. 1-10410.
 
(9) Incorporated by reference from Promus's Current Report on Form 8-K, filed
    June 14, 1995, File No. 1-11463.
 
(10) Incorporated by reference from Promus's Quarterly Report on Form 10-Q for
    the quarter ended March 31, 1997, filed May 15, 1997, File No. 1-10410.
 
(11) Incorporated by reference from PCI's Quarterly Report on Form 10-Q for the
    quarter ended March 31, 1992, filed May 13, 1992, File No. 1-10410.
 
(12) Incorporated by reference from Promus's Registration Statement on Form S-3,
    filed October 11, 1996, File No. 1-11463.
 
(13) Incorporated by reference from PCI's Quarterly Report on Form 10-Q for the
    quarter ended March 31, 1993, filed May 13, 1993, File No. 1-10410.
 
(14) Incorporated by reference from PCI's Annual Report on Form 10-K for the
    fiscal year ended December 31, 1992, filed March 17, 1993, File No. 1-10410.
 
(15) Incorporated by reference from Doubletree's Annual Report on Form 10-K for
    the fiscal year ended December 31, 1996, filed March 28, 1997, File No.
    0-24392.
 
                                      II-6
<PAGE>
(16) Incorporated by reference from Promus's Quarterly Report on Form 10-Q, for
    the quarter ended June 30, 1995, filed August 11, 1995, File No. 1-11463.
 
(17) Incorporated by reference from Promus's Annual Report on Form 10-K for the
    fiscal year ended December 31, 1995, filed March 12, 1996, File No. 1-11463.
 
(18) Incorporated by reference from Promus's Quarterly Report on Form 10-Q, for
    the quarter ended March 31, 1996, filed May 7, 1996, File No. 1-11463.
 
(19) Incorporated by reference from Doubletree's Current Report on Form 8-K
    dated November 15, 1996, filed November 21, 1996, File No. 0-24392.
 
(20) Incorporated by reference from Doubletree's Registration Statement on Form
    S-1 (as amended), filed May 24, 1994, File No. 33-79188.
 
(21) Incorporated by reference from Doubletree's Quarterly Report on Form 10-Q
    for the quarter ended June 30, 1994, filed August 15, 1994, File No.
    0-24392.
 
(22) Incorporated by reference from Doubletree's Annual Report on Form 10-K for
    the year ended December 31, 1994, filed April 3, 1995, File No. 0-24392.
 
(23) Previously filed as an exhibit to Promus's Current Report on Form 8-K,
    dated February 27, 1996 and incorporated herein by reference.
 
(b) Financial Statement Schedules
 
    None. Schedules are omitted because of the absence of the conditions under
which they are required or because the information required by such omitted
schedules is set forth in the financial statements or the notes thereto.
 
(c) Report, Opinion or Appraisal
 
    The opinion of Morgan Stanley & Co. Incorporated, financial advisor to
Doubletree, and the opinion of BT Wolfensohn, financial advisor of Promus, are
attached as Annex B and Annex C, respectively, to the Joint Proxy
Statement/Prospectus included in this Registration Statement.
 
ITEM 22.  UNDERTAKINGS
 
    (a) The undersigned Registrant hereby undertakes:
 
        (1) To file, during any period in which offers or sales are being made,
    a post-effective amendment to this Registration Statement;
 
            (ii) To include any prospectus required by section 10(a)(3) of the
       Securities Act of 1933;
 
            (ii) To reflect in the prospectus any facts or events arising after
       the effective date of the Registration Statement (or the most recent
       post-effective amendment thereof) which, individually or in the
       aggregate, represent a fundamental change in the information set forth in
       the Registration Statement. Notwithstanding the foregoing, any increase
       or decrease in volume of securities offered (if the total dollar value of
       securities offered would not exceed that which was registered) and any
       deviation from the low or high end of the estimated maximum offering
       range may be reflected in the form of prospectus filed with the
       Commission pursuant to Rule 424(b) if, in the aggregate, the changes in
       volume and price represent no more than 20% change in the maximum
       aggregate offering price set forth in the "Calculation of Registration
       Fee" table in the effective Registration Statement.
 
                                      II-7
<PAGE>
           (iii) To include any material information with respect to the plan of
       distribution not previously disclosed in the registration statement or
       any material change to such information in the Registration Statement;
 
               Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) of
       this section do not apply if the Registration Statement is on Form S-3
       (Section239.13 of this chapter), Form S-8 (Section239.16b of this chapter
       or Form F-3 (Section239.33 of this chapter), and the information required
       to be included in a post-effective amendment by those paragraphs is
       contained in periodic reports filed with or furnished to the Commission
       by the Registrant pursuant to section 13 or section 15(d) of the
       Securities Exchange Act of 1934 that are incorporated by reference in the
       Registration Statement.
 
        (2) That, for the purpose of determining any liability under the
    Securities Act of 1933, each such post-effective amendment shall be deemed
    to be a new registration statement relating to the securities offered
    therein, and the offering of such securities at that time shall be deemed to
    be the initial bona fide offering thereof.
 
        (3) To remove from registration by means of a post-effective amendment
    any of the securities being registered which remain unsold at the
    termination of the offering.
 
    (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to section 13(a) or 15(d) of the Exchange
Act (and, where applicable, each filing of an employee benefit plan's annual
report pursuant to section 15(d) of the Exchange Act) that is incorporated by
reference in this Registration Statement shall be deemed to be a new
registration statement relating to the securities offered herein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
 
    (c) The undersigned Registrant hereby undertakes to deliver or cause to be
delivered with the prospectus, to each person to whom the prospectus is sent or
given, the latest annual report to security holders that is incorporated by
reference in the prospectus and furnished pursuant to and meeting the
requirements of Rule 14a-3 or Rule 14c-3 under the Securities Exchange Act of
1934; and, where interim financial information required to be presented by
Article 3 of Regulation S-X are not set forth in the prospectus, to deliver, or
cause to be delivered to each person to whom the prospectus is sent or given,
the latest quarterly report that is specifically incorporated by reference in
the prospectus to provide such interim financial information.
 
    (d) The undersigned Registrant hereby undertakes as follows: that prior to
any public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this Registration Statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other Items of the applicable form.
 
    (e) The undersigned Registrant undertakes that every prospectus (i) that is
filed pursuant to paragraph (d) immediately preceding, or (ii) that purports to
meet the requirements of section 10(a)(3) of the Securities Act and is used in
connection with an offering of securities subject to Rule 415, will be filed as
a part of an amendment to this Registration Statement and will not be used until
such amendment is effective, and that, for purposes of determining any liability
under the Securities Act, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.
 
    (f) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Commission such indemnification is
 
                                      II-8
<PAGE>
against public policy as expressed in the Securities Act as is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.
 
    (g) The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Item 4, 10(b), 11, or 13 of this form, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This includes information contained in documents
filed subsequent to the effective date of this Registration Statement through
the date of responding to the request.
 
    (h) The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in this Registration Statement when it became effective.
 
                                      II-9
<PAGE>
                                   SIGNATURES
 
    Pursuant to the requirements of the Securities Act, the Registrant has duly
caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Memphis, State of
Tennessee, on November 14, 1997.
 
<TABLE>
<S>                             <C>  <C>
                                PARENT HOLDING CORP.
 
                                By:            /s/ RAYMOND E. SCHULTZ
                                     -----------------------------------------
                                                 Raymond E. Schultz
                                      CHIEF EXECUTIVE OFFICER AND CHAIRMAN OF
                                      THE BOARD (PRINCIPAL EXECUTIVE OFFICER)
</TABLE>
 
                               POWER OF ATTORNEY
 
    KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears on
the signature page to this Registration Statement constitutes and appoints
Raymond E. Schultz and William L. Perrochi, and each of them, his true and
lawful attorneys-in-fact and agents, and each of them, with full power of
substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, to sign any and all amendments (including post-effective
amendments) to this Registration Statement, and to file the same, with all
exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, and grants unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in and about the
premises, as fully to all intents and purposes as he might or could do in
person, hereby ratifying and confirming all that said attorneys-in-fact and
agents, or each of them, or his substitute, may lawfully do or cause to be done
by virtue hereof.
 
    Pursuant to the requirements of the Securities Act, this Registration
Statement has been signed by the following persons in the capacities and on the
dates indicated:
 
          SIGNATURE                       TITLE                    DATE
- ------------------------------  --------------------------  -------------------
 
                                Chief Executive Officer,
    /s/ RAYMOND E. SCHULTZ        Chairman of the Board
- ------------------------------    and Director (Principal    November 14, 1997
      Raymond E. Schultz          Executive Officer)
 
   /s/ RICHARD M. KELLEHER
- ------------------------------  President, Chief Operating   November 14, 1997
     Richard M. Kelleher          Officer, and Director
 
   /s/ WILLIAM L. PEROCCHI      Chief Financial Officer
- ------------------------------    (Principal Financial and   November 14, 1997
     William L. Perocchi          Accounting Officer)
 
                                     II-10

<PAGE>
                          AGREEMENT AND PLAN OF MERGER
 
                         DATED AS OF SEPTEMBER 1, 1997
 
                                     AMONG
 
                            DOUBLETREE CORPORATION,
 
                            PROMUS HOTEL CORPORATION
 
                                      AND
 
                              PARENT HOLDING CORP.
 
                                       1
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                               TABLE OF CONTENTS
 
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ARTICLE I.          THE MERGERS...........................................................................           9
 
  Section 1.1.      Certificate of Incorporation and Bylaws of Parent.....................................           9
  Section 1.2.      The Doubletree Merger.................................................................           9
  Section 1.3.      The Promus Merger.....................................................................           9
  Section 1.4.      Effective Time of the Mergers.........................................................           9
  Section 1.5.      Closing...............................................................................           9
  Section 1.6.      Effect of the Mergers.................................................................           9
  Section 1.7.      Certificate of Incorporation and Bylaws of the Surviving Corporations.................          10
  Section 1.8.      Directors and Officers of the Surviving Corporations..................................          10
 
ARTICLE II.         CONVERSION OF SECURITIES..............................................................          10
 
  Section 2.1.      Conversion of Doubletree Capital Stock................................................          10
  Section 2.2.      Conversion of Promus Capital Stock....................................................          11
  Section 2.3.      Cancellation of Parent Stock..........................................................          11
  Section 2.4.      Exchange of Certificates..............................................................          11
 
ARTICLE III.        REPRESENTATIONS AND WARRANTIES OF DOUBLETREE..........................................          14
 
  Section 3.1.      Organization of Doubletree............................................................          14
  Section 3.2.      Doubletree Capital Structure..........................................................          14
  Section 3.3.      Authority; No Conflict; Required Filings and Consents.................................          15
  Section 3.4.      SEC Filings; Financial Statements.....................................................          16
  Section 3.5.      No Undisclosed Liabilities............................................................          17
  Section 3.6.      Absence of Certain Changes or Events..................................................          17
  Section 3.7.      Taxes.................................................................................          17
  Section 3.8.      Properties............................................................................          18
  Section 3.9.      Intellectual Property.................................................................          18
  Section 3.10.     Agreements, Contracts and Commitments.................................................          18
  Section 3.11.     Litigation............................................................................          19
  Section 3.12.     Environmental Matters.................................................................          19
  Section 3.13.     Employee Benefit Plans................................................................          19
  Section 3.14.     Compliance With Laws..................................................................          20
  Section 3.15.     Accounting and Tax Matters............................................................          20
  Section 3.16.     Registration Statement; Joint Proxy Statement/Prospectus..............................          21
  Section 3.17.     Labor Matters.........................................................................          21
  Section 3.18.     Insurance.............................................................................          21
  Section 3.19.     Doubletree Long-Range Plans...........................................................          22
  Section 3.20.     Opinion of Financial Advisor..........................................................          22
  Section 3.21.     No Existing Discussions...............................................................          22
  Section 3.22.     Section 203 of the DGCL Not Applicable................................................          22
  Section 3.23.     Doubletree Rights Plan................................................................          22
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ARTICLE IV.         REPRESENTATIONS AND WARRANTIES OF PROMUS..............................................          22
 
  Section 4.1.      Organization of Promus................................................................          22
  Section 4.2.      Promus Capital Structure..............................................................          23
  Section 4.3.      Authority; No Conflict; Required Filings and Consents.................................          23
  Section 4.4.      SEC Filings; Financial Statements.....................................................          24
  Section 4.5.      No Undisclosed Liabilities............................................................          25
  Section 4.6.      Absence of Certain Changes or Events..................................................          25
  Section 4.7.      Taxes.................................................................................          25
  Section 4.8.      Properties............................................................................          26
  Section 4.9.      Intellectual Property.................................................................          26
  Section 4.10.     Agreements, Contracts and Commitments.................................................          26
  Section 4.11.     Litigation............................................................................          26
  Section 4.12.     Environmental Matters.................................................................          27
  Section 4.13.     Employee Benefit Plans................................................................          27
  Section 4.14.     Compliance With Laws..................................................................          28
  Section 4.15.     Accounting and Tax Matters............................................................          28
  Section 4.16.     Registration Statement; Joint Proxy Statement/Prospectus..............................          28
  Section 4.17.     Labor Matters.........................................................................          29
  Section 4.18.     Insurance.............................................................................          29
  Section 4.19.     Promus Long-Range Plans...............................................................          29
  Section 4.20.     Opinion of Financial Advisor..........................................................          29
  Section 4.21.     No Existing Discussions...............................................................          29
  Section 4.22.     Section 203 of the DGCL Not Applicable................................................          29
  Section 4.23.     Promus Rights Plan....................................................................          29
 
ARTICLE V.          COVENANTS.............................................................................          29
 
  Section 5.1.      Conduct of Business...................................................................          29
  Section 5.2.      Cooperation; Notice; Cure.............................................................          31
  Section 5.3.      No Solicitation.......................................................................          31
  Section 5.4.      Joint Proxy Statement/Prospectus; Registration Statement..............................          32
  Section 5.5.      NASDAQ Quotation and NYSE Listing.....................................................          32
  Section 5.6.      Access to Information.................................................................          33
  Section 5.7.      Stockholders' Meetings................................................................          33
  Section 5.8.      Legal Conditions to Merger............................................................          33
  Section 5.9.      Public Disclosure.....................................................................          34
  Section 5.10.     Nonrecognition Exchange...............................................................          34
  Section 5.11.     Pooling Accounting....................................................................          34
  Section 5.12.     Affiliate Agreements..................................................................          34
  Section 5.13.     NYSE Listing..........................................................................          34
  Section 5.14.     Stock Plans...........................................................................          35
  Section 5.15.     Brokers or Finders....................................................................          36
  Section 5.16.     Indemnification.......................................................................          36
</TABLE>
 
                                       3
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  Section 5.17.     Letter of Promus's Accountants........................................................          36
  Section 5.18.     Letter of Doubletree's Accountants....................................................          37
  Section 5.19.     Stock Option Agreements...............................................................          37
  Section 5.20.     Post-Merger Corporate Governance; Employment Arrangements.............................          37
  Section 5.21.     Name of Parent........................................................................          38
  Section 5.22.     Parent Stockholder Rights Plan; Amendment of Promus Rights Plan.......................          38
  Section 5.23.     GEPT Warrant; Doubletree Registration Rights Agreement................................          39
  Section 5.24.     Conveyance Taxes......................................................................          39
  Section 5.25.     Transfer Taxes........................................................................          39
  Section 5.26.     Stockholder Litigation................................................................          39
  Section 5.27.     Employee Benefits; Severance..........................................................          40
 
ARTICLE VI.         CONDITIONS TO MERGER..................................................................          40
 
  Section 6.1.      Conditions to Each Party's Obligation to Effect the Mergers...........................          40
  Section 6.2.      Additional Conditions to Obligations of Doubletree....................................          41
  Section 6.3.      Additional Conditions to Obligations of Promus........................................          42
 
ARTICLE VII.        TERMINATION AND AMENDMENT.............................................................          42
 
  Section 7.1.      Termination...........................................................................          42
  Section 7.2.      Effect of Termination.................................................................          44
  Section 7.3.      Fees and Expenses.....................................................................          44
  Section 7.4.      Amendment.............................................................................          45
  Section 7.5.      Extension; Waiver.....................................................................          45
 
ARTICLE VIII.       MISCELLANEOUS.........................................................................          46
 
  Section 8.1.      Nonsurvival of Representations, Warranties and Agreements.............................          46
  Section 8.2.      Notices...............................................................................          46
  Section 8.3.      Interpretation........................................................................          46
  Section 8.4.      Counterparts..........................................................................          47
  Section 8.5.      Entire Agreement; No Third Party Beneficiaries........................................          47
  Section 8.6.      Governing Law.........................................................................          47
  Section 8.7.      Assignment............................................................................          47
 
EXHIBITS
 
    Exhibit A       Stock Option Agreement (Doubletree)
    Exhibit B       Stock Option Agreement (Promus)
    Exhibit C       Stockholder Support Agreement
    Exhibit D       Certificate of Incorporation of Parent
    Exhibit E       Bylaws of Parent
    Exhibit F       Form of Doubletree Affiliate Agreement
    Exhibit G       Form of Promus Affiliate Agreement
</TABLE>
 
                                       4
<PAGE>
                            TABLES OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                                                  CROSS REFERENCE
TERMS                                                                                              IN AGREEMENT
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Acquisition Proposal...........................................................................  Section 5.3(a)
Affiliate......................................................................................  Section 5.12
Affiliate Agreement............................................................................  Section 5.12
Agreement......................................................................................  Preamble
Alternative Transaction........................................................................  Section 7.3(e)
Bankruptcy and Equity Exception................................................................  Section 3.3(a)
Certificate of Merger..........................................................................  Section 1.4
Certificates...................................................................................  Section 2.4(b)
Closing........................................................................................  Section 1.5
Closing Date...................................................................................  Section 1.5
Code...........................................................................................  Preamble
Confidentiality Agreements.....................................................................  Section 5.3(a)
DGCL...........................................................................................  Section 1.2
Doubletree.....................................................................................  Preamble
Doubletree Balance Sheet.......................................................................  Section 3.4(b)
Doubletree Common Stock........................................................................  Section 2.1
Doubletree Director............................................................................  Section 5.20(a)
Doubletree Disclosure Schedule.................................................................  Article III
Doubletree Employee Plans......................................................................  Section 3.13(a)
Doubletree Employees...........................................................................  Section 5.27(b)
Doubletree Exchange Ratio......................................................................  Section 2.1(c)
Doubletree Material Adverse Effect.............................................................  Section 3.1
Doubletree Material Contracts..................................................................  Section 3.10(a)
Doubletree Merger..............................................................................  Section 1.2
Doubletree Preferred Stock.....................................................................  Section 3.2(a)
Doubletree Rights Plan.........................................................................  Section 3.2(b)
Doubletree SEC Reports.........................................................................  Section 3.4(a)
Doubletree Stock Option........................................................................  Section 5.14(a)
Doubletree Stock Option Agreement..............................................................  Preamble
Doubletree Stock Plans.........................................................................  Section 3.2(a)
Doubletree Stockholders' Meeting...............................................................  Section 3.16
Doubletree Sub.................................................................................  Section 1.2
Doubletree Surviving Corporation...............................................................  Section 1.6
Effective Time.................................................................................  Section 1.4
Environmental Law..............................................................................  Section 3.12(b)
ERISA..........................................................................................  Section 3.13(a)
ERISA Affiliate................................................................................  Section 3.13(a)
Exchange Act...................................................................................  Section 3.3(c)
Exchange Agent.................................................................................  Section 2.4(a)
Exchange Fund..................................................................................  Section 2.4(a)
GEPT Warrant...................................................................................  Section 3.2(b)
</TABLE>
 
                                       5
<PAGE>
<TABLE>
<CAPTION>
                                                                                                  CROSS REFERENCE
TERMS                                                                                              IN AGREEMENT
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Governmental Entity............................................................................  Section 3.3(c)
Hazardous Substance............................................................................  Section 3.12(c)
HSR Act........................................................................................  Section 3.3(c)
Indemnified Parties............................................................................  Section 5.16(a)
IRS............................................................................................  Section 3.7(b)
Joint Proxy Statement/Prospectus...............................................................  Section 3.16
Material Lease(s)..............................................................................  Section 3.8(a)
Mergers........................................................................................  Section 1.3
NYSE...........................................................................................  Section 2.4(e)
Order..........................................................................................  Section 5.8(b)
Outside Date...................................................................................  Section 7.1(b)
Parent.........................................................................................  Preamble
Parent Common Stock............................................................................  Section 2.1(c)
Parent Rights Plan.............................................................................  Section 5.22
Promus.........................................................................................  Preamble
Promus Balance Sheet...........................................................................  Section 4.4(b)
Promus Common Stock............................................................................  Section 2.2
Promus Director................................................................................  Section 5.20(a)
Promus Disclosure Schedule.....................................................................  Article IV
Promus Employee Plans..........................................................................  Section 4.13(a)
Promus Employees...............................................................................  Section 5.27(b)
Promus Exchange Ratio..........................................................................  Section 2.2(c)
Promus Material Adverse Effect.................................................................  Section 4.1
Promus Material Contracts......................................................................  Section 4.10(a)
Promus Merger..................................................................................  Section 1.3
Promus Preferred Stock.........................................................................  Section 4.2(a)
Promus Rights Plan.............................................................................  Section 4.2(b)
Promus SEC Reports.............................................................................  Section 4.4(a)
Promus Special Stock...........................................................................  Section 4.2(a)
Promus Stock Option............................................................................  Section 5.14(a)
Promus Stock Option Agreement..................................................................  Preamble
Promus Stock Plans.............................................................................  Section 4.2(a)
Promus Stockholders' Meeting...................................................................  Section 3.16
Promus Sub.....................................................................................  Section 1.3
Promus Surviving Corporation...................................................................  Section 1.6
Registration Statement.........................................................................  Section 3.16
Rule 145.......................................................................................  Section 5.12
SEC............................................................................................  Section 3.3(c)
Securities Act.................................................................................  Section 2.4(j)
Stock Option Agreements........................................................................  Preamble
Stockholder Support Agreement..................................................................  Preamble
Subsidiary.....................................................................................  Section 3.1
Superior Proposal..............................................................................  Section 5.3(a)
</TABLE>
 
                                       6
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<CAPTION>
                                                                                                  CROSS REFERENCE
TERMS                                                                                              IN AGREEMENT
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Surviving Corporation..........................................................................  Section 1.6
Tax............................................................................................  Section 3.7(a)
Taxes..........................................................................................  Section 3.7(a)
Third Party....................................................................................  Section 5.3(a)
Transfer Taxes.................................................................................  Section 5.25
</TABLE>
 
                                       7
<PAGE>
                          AGREEMENT AND PLAN OF MERGER
 
    AGREEMENT AND PLAN OF MERGER (the "Agreement"), dated as of September 1,
1997, by and among DOUBLETREE CORPORATION, a Delaware corporation
("Doubletree"), PROMUS HOTEL CORPORATION, a Delaware corporation ("Promus") and
PARENT HOLDING CORP., a newly-formed Delaware corporation with nominal
capitalization, one-half of the issued and outstanding capital stock of which is
nominally owned by each of Doubletree and Promus ("Parent").
 
    WHEREAS, the Boards of Directors of Doubletree and Promus deem it advisable
and in the best interests of each corporation and its respective stockholders
that Doubletree and Promus combine in a "merger of equals" in order to advance
the interests of Doubletree and Promus and their respective stockholders;
 
    WHEREAS, the combination of Doubletree and Promus shall be effected by the
terms of this Agreement through (i) a merger of a wholly-owned subsidiary of
Parent with and into Doubletree and (ii) a merger of another wholly-owned
subsidiary of Parent with and into Promus, such that Doubletree and Promus
become wholly-owned subsidiaries of Parent and the stockholders of Doubletree
and Promus become stockholders of Parent;
 
    WHEREAS, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to each of Doubletree's and Promus's willingness
to enter into this Agreement, Doubletree and Promus have entered into (i) a
Stock Option Agreement dated as of the date of this Agreement and attached
hereto as Exhibit A (the "Doubletree Stock Option Agreement"), pursuant to which
Promus granted Doubletree an option to purchase shares of common stock of Promus
under certain circumstances, and (ii) a Stock Option Agreement dated as of the
date of this Agreement and attached hereto as Exhibit B (the "Promus Stock
Option Agreement" and, together with the Doubletree Stock Option Agreement, the
"Stock Option Agreements"), pursuant to which Doubletree granted Promus an
option to purchase shares of common stock of Doubletree under certain
circumstances;
 
    WHEREAS, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to Promus's willingness to enter into this
Agreement, certain stockholders of Doubletree have entered into a Stockholder
Support Agreement with Promus dated as of the date of this Agreement and
attached hereto as Exhibit C (the "Stockholder Support Agreement"), pursuant to
which such stockholders have agreed, among other things, to vote all voting
securities of Doubletree beneficially owned by them in favor of approval and
adoption of the Agreement and the Doubletree Merger (as defined in Section 1.2);
 
    WHEREAS, for Federal income tax purposes, it is intended that (i) the
Doubletree Merger shall qualify as a reorganization described in Section 368(a)
of the Internal Revenue Code of 1986, as amended (the "Code") and/or, taken
together with the Promus Merger (as defined in Section 1.3), as a transfer of
property to Parent by holders of Doubletree Common Stock (as defined in Section
2.1) described in Section 351 of the Code and (ii) the Promus Merger shall
qualify as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Doubletree Merger, as a transfer of property to Parent
by holders of Promus Common Stock described in Section 351 of the Code;
 
    WHEREAS, for accounting purposes, it is intended that the transactions
contemplated by this Agreement shall be accounted for as a pooling of interests;
and
 
    WHEREAS, the Boards of Directors of Doubletree and Promus have approved this
Agreement, the Stock Option Agreements and the Stockholder Support Agreement.
 
                                       8
<PAGE>
    NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth below, the
parties agree as follows:
 
                                   ARTICLE I.
 
                                  THE MERGERS
 
    Section 1.1  CERTIFICATE OF INCORPORATION AND BYLAWS OF PARENT.  Doubletree
and Promus shall cause the Certificate of Incorporation and Bylaws of Parent to
be amended prior to the Effective Time (as defined in Section 1.4) to be
substantially in the form of Exhibit D and Exhibit E hereto, respectively. From
the date hereof until the Effective Time, Doubletree and Promus shall consult
with each other prior to causing or permitting Parent to take any action and
neither shall cause or permit Parent to take any action inconsistent with the
provisions of this Agreement without the written consent of the other.
 
    Section 1.2.  THE DOUBLETREE MERGER.  Doubletree and Promus shall cause
Parent to form a wholly-owned subsidiary named Doubletree Acquisition Corp.
("Doubletree Sub") under the laws of the State of Delaware. Doubletree and
Promus will cause Parent to cause Doubletree Sub to execute and deliver this
Agreement. Upon the terms and subject to the provisions of this Agreement, and
in accordance with the Delaware General Corporation Code (the "DGCL"),
Doubletree Sub will merge with and into Doubletree (the "Doubletree Merger") at
the Effective Time (as defined in Section 1.4). Doubletree Sub will be formed
solely to facilitate the Doubletree Merger and will conduct no business or
activity other than in connection with the Doubletree Merger.
 
    Section 1.3.  THE PROMUS MERGER.  Doubletree and Promus shall cause Parent
to form a wholly-owned subsidiary named Promus Acquisition Corp. ("Promus Sub")
under the laws of the State of Delaware. Doubletree and Promus will cause Parent
to cause Promus Sub to execute and deliver this Agreement. Upon the terms and
subject to the provisions of this Agreement, and in accordance with the DGCL,
Promus Sub will merge with and into Promus (the "Promus Merger" and together
with the Doubletree Merger, the "Mergers") at the Effective Time (as defined in
Section 1.4). Promus Sub will be formed solely to facilitate the Promus Merger
and will conduct no business or activity other than in connection with the
Promus Merger.
 
    Section 1.4.  EFFECTIVE TIME OF THE MERGERS.  Subject to the provisions of
this Agreement, a certificate of merger with respect to each Merger in such form
as is required by the relevant provisions of the DGCL (individually, a
"Certificate of Merger" with respect to one of the Mergers, and collectively
with respect to both Mergers, the "Certificates of Merger") shall be duly
prepared, executed and acknowledged and thereafter delivered to the Secretary of
State of the State of Delaware for filing, as provided in the DGCL, as early as
practicable on the Closing Date (as defined in Section 1.5). Each Merger shall
become effective at such time as is specified in the Certificate of Merger (the
time at which both Mergers have become fully effective being hereinafter
referred to as the "Effective Time").
 
    Section 1.5  CLOSING.  The closing of the Mergers (the "Closing") will take
place at such time and place to be agreed upon by the parties hereto, on a date
to be specified by Promus and Doubletree, which shall be no later than the
second business day after satisfaction or, if permissible, waiver of the
conditions set forth in Article VI (the "Closing Date"), unless another date is
agreed to in writing by Promus and Doubletree.
 
    Section 1.6.  EFFECT OF THE MERGERS.  As a result of the Doubletree Merger,
the separate corporate existence of Doubletree Sub shall cease and Doubletree
shall continue as the surviving corporation (the "Doubletree Surviving
Corporation"). As a result of the Promus Merger, the separate corporate
existence of Promus Sub shall cease and Promus shall continue as the surviving
corporation (the "Promus Surviving Corporation" and together with the Doubletree
Surviving Corporation, the "Surviving Corporations"). Upon becoming effective,
the Mergers shall have the effects set forth in the DGCL. Without limiting the
generality of the foregoing, and subject thereto, at the Effective Time, (i) all
properties, rights, privileges,
 
                                       9
<PAGE>
powers and franchises of Doubletree and Doubletree Sub shall vest in the
Doubletree Surviving Corporation, and all debts, liabilities and duties of
Doubletree and Doubletree Sub shall become the debts, liabilities and duties of
the Doubletree Surviving Corporation and (ii) all properties, rights,
privileges, powers and franchises of Promus and Promus Sub shall vest in the
Promus Surviving Corporation, and all debts, liabilities and duties of Promus
and Promus Sub shall become the debts, liabilities and duties of the Promus
Surviving Corporation.
 
    Section 1.7.  CERTIFICATE OF INCORPORATION AND BYLAWS OF THE SURVIVING
CORPORATIONS.  At the Effective Time, (i) the Certificate of Incorporation and
Bylaws of the Doubletree Surviving Corporation shall be amended to be identical
to the Certificate of Incorporation and Bylaws, respectively, of Doubletree Sub
as in effect immediately prior to the Effective Time (except that the name of
the Doubletree Surviving Corporation shall be Doubletree Inc.), in each case
until duly amended in accordance with applicable law, and (ii) the Certificate
of Incorporation and Bylaws of the Promus Surviving Corporation shall be amended
to be identical to the Certificate of Incorporation and Bylaws, respectively, of
Promus Sub as in effect immediately prior to the Effective Time (except that the
name of the Promus Surviving Corporation shall be Promus Acquisition Corp.), in
each case until duly amended in accordance with applicable law.
 
    Section 1.8.  DIRECTORS AND OFFICERS OF THE SURVIVING CORPORATIONS
 
    (a)  DOUBLETREE SURVIVING CORPORATION.  The directors of Doubletree Sub
immediately prior to the Effective Time shall be the initial directors of the
Doubletree Surviving Corporation, each to hold office in accordance with the
Certificate of Incorporation and Bylaws of the Doubletree Surviving Corporation.
The officers of Doubletree immediately prior to the Effective Time shall be the
initial officers of the Doubletree Surviving Corporation, each to hold office in
accordance with the Certificate of Incorporation and Bylaws of the Doubletree
Surviving Corporation.
 
    (b)  PROMUS SURVIVING CORPORATION.  The directors of Promus Sub immediately
prior to the Effective Time shall be the initial directors of the Promus
Surviving Corporation, each to hold office in accordance with the Certificate of
Incorporation and Bylaws of the Promus Surviving Corporation. The officers of
Promus immediately prior to the Effective Time shall be the initial officers of
the Promus Surviving Corporation, each to hold office in accordance with the
Certificate of Incorporation and Bylaws of the Promus Surviving Corporation.
 
                                  ARTICLE II.
 
                            CONVERSION OF SECURITIES
 
    Section 2.1.  CONVERSION OF DOUBLETREE CAPITAL STOCK.  At the Effective
Time, by virtue of the Doubletree Merger and without any action on the part of
any of the parties hereto or the holders of any shares of Common Stock, par
value $.01 per share, of Doubletree ("Doubletree Common Stock") or common stock
of Doubletree Sub:
 
        (a)  CAPITAL STOCK OF DOUBLETREE SUB.  Each issued and outstanding share
    of the common stock, par value $.01 per share, of Doubletree Sub shall be
    converted into and become one fully paid and nonassessable share of Common
    Stock, par value $.01 per share, of the Doubletree Surviving Corporation.
 
        (b)  CANCELLATION OF TREASURY STOCK AND PROMUS-OWNED STOCK.  All shares
    of Doubletree Common Stock that are owned by Doubletree as treasury stock
    and any shares of Doubletree Common Stock owned by Promus or any
    wholly-owned Subsidiary (as defined in Section 3.1) of Promus shall be
    canceled and retired and shall cease to exist and no stock of Parent or
    other consideration shall be delivered in exchange therefor.
 
        (c)  EXCHANGE RATIO FOR DOUBLETREE COMMON STOCK.  Subject to Section
    2.4(e), each issued and outstanding share of Doubletree Common Stock (other
    than shares to be canceled in accordance with
 
                                       10
<PAGE>
    Section 2.1(b)) shall be converted into the right to receive one share (the
    "Doubletree Exchange Ratio") of Common Stock, par value $.01 per share, of
    Parent ("Parent Common Stock"). All such shares of Doubletree Common Stock,
    when so converted, shall no longer be outstanding and shall automatically be
    canceled and retired and shall cease to exist, and each holder of a
    certificate representing any such shares shall cease to have any ownership
    or other rights with respect thereto, except the right to receive the shares
    of Parent Common Stock and an amount equal to certain dividends and other
    distributions described in Section 2.4(c), without interest, upon the
    surrender of such certificate in accordance with Section 2.4.
 
    Section 2.2.  CONVERSION OF PROMUS CAPITAL STOCK.  At the Effective Time, by
virtue of the Promus Merger and without any action on the part of any of the
parties hereto or the holders of any shares of Common Stock, par value $.10 per
share, of Promus ("Promus Common Stock") or common stock of Promus Sub:
 
        (a)  CAPITAL STOCK OF PROMUS SUB.  Each issued and outstanding share of
    the common stock, par value $.01 per share, of Promus Sub shall be converted
    into and become one fully paid and nonassessable share of Common Stock, par
    value $.01 per share, of the Promus Surviving Corporation.
 
        (b)  CANCELLATION OF TREASURY STOCK AND DOUBLETREE-OWNED STOCK.  All
    shares of Promus Common Stock that are owned by Promus as treasury stock and
    any shares of Promus Common Stock owned by Doubletree or any wholly-owned
    Subsidiary (as defined in Section 3.1) of Doubletree shall be canceled and
    retired and shall cease to exist and no stock of Parent or other
    consideration shall be delivered in exchange therefor.
 
        (c)  EXCHANGE RATIO FOR PROMUS COMMON STOCK.  Subject to Section 2.4(e),
    each issued and outstanding share of Promus Common Stock (other than shares
    to be canceled in accordance with Section 2.2(b)) shall be converted into
    the right to receive 0.925 shares (the "Promus Exchange Ratio") of Parent
    Common Stock. All such shares of Promus Common Stock, when so converted,
    shall no longer be outstanding and shall automatically be canceled and
    retired and shall cease to exist, and each holder of a certificate
    representing any such shares shall cease to have any ownership or other
    rights with respect thereto, except the right to receive the shares of
    Parent Common Stock, any cash in lieu of fractional shares of Parent Common
    Stock to be issued or paid in consideration therefor and an amount equal to
    certain dividends and other distributions described in Section 2.4(c), in
    each case upon the surrender of such certificate in accordance with Section
    2.4 and without interest.
 
    Section 2.3.  CANCELLATION OF PARENT STOCK.  At the Effective Time, by
virtue of the Mergers and without any action on the part of any holder of any
capital stock of Doubletree, Promus or Parent, each share of Parent Common Stock
issued and outstanding immediately prior to the Effective Time shall be
surrendered and canceled, and the amount paid by Doubletree and Promus for the
shares of Parent Common Stock held by them shall be returned by Parent to them.
 
    Section 2.4.  EXCHANGE OF CERTIFICATES.  The procedures for exchanging
certificates which prior to the Effective Time represented shares of Doubletree
Common Stock and Promus Common Stock for certificates representing Parent Common
Stock pursuant to the Mergers are as follows:
 
        (a)  EXCHANGE AGENT.  As of the Effective Time, Parent shall deposit
    with a bank or trust company designated by Promus and Doubletree (the
    "Exchange Agent"), for the benefit of the holders of shares of Doubletree
    Common Stock and shares of Promus Common Stock outstanding immediately prior
    to the Effective Time, for exchange in accordance with this Section 2.4,
    through the Exchange Agent, certificates representing the shares of Parent
    Common Stock and, with respect to shares of Promus Common Stock, cash in
    lieu of fractional shares (such shares of Parent Common Stock and cash in
    lieu of fractional shares, together with any dividends or distributions with
    respect thereto, being hereinafter referred to as the "Exchange Fund"),
    issuable pursuant to Sections 2.1 and
 
                                       11
<PAGE>
    2.2 in exchange for shares of Doubletree Common Stock and Promus Common
    Stock, respectively, outstanding immediately prior to the Effective Time.
 
        (b)  EXCHANGE PROCEDURES.  As soon as reasonably practicable after the
    Effective Time, the Exchange Agent shall mail to each holder of record of a
    certificate or certificates which immediately prior to the Effective Time
    represented outstanding shares of Doubletree Common Stock or Promus Common
    Stock (collectively, the "Certificates") whose shares were converted
    pursuant to Section 2.1 or Section 2.2 into the right to receive shares of
    Parent Common Stock (i) a letter of transmittal (which shall specify that
    delivery shall be effected, and risk of loss and title to the Certificates
    shall pass, only upon delivery of the Certificates to the Exchange Agent and
    shall be in such form and have such other provisions as Doubletree and
    Promus may reasonably specify) and (ii) instructions for effecting the
    surrender of the Certificates in exchange for certificates representing
    shares of Parent Common Stock (plus cash in lieu of fractional shares, if
    any, of Parent Common Stock as provided below). Upon surrender of a
    Certificate for cancellation to the Exchange Agent or to such other agent or
    agents as may be appointed by Parent, together with such letter of
    transmittal, duly executed, the holder of such Certificate shall be entitled
    to receive in exchange therefor a certificate representing that number of
    whole shares of Parent Common Stock, the amount of any cash payable in lieu
    of fractional shares of Parent Common Stock (with respect to shares of
    Promus Common Stock) and an amount equal to certain dividends and other
    distributions which such holder has the right to receive pursuant to the
    provisions of this Article II, and the Certificate so surrendered shall
    immediately be canceled. In the event of a transfer of ownership of
    Doubletree Common Stock or Promus Common Stock prior to the Effective Time
    which is not registered in the transfer records of Doubletree or Promus,
    respectively, a certificate representing the number of shares of Parent
    Common Stock issuable and any amounts payable in accordance with this
    Agreement may be issued and paid to a transferee if the Certificate
    representing such Doubletree Common Stock or Promus Common Stock is
    presented to the Exchange Agent, accompanied by all documents required to
    evidence and effect such transfer and by evidence that any applicable stock
    transfer taxes have been paid.
 
        (c)  DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES.  No amount in
    respect of dividends or other distributions declared or made after the
    Effective Time with respect to Parent Common Stock with a record date after
    the Effective Time shall be paid to the holder of any unsurrendered
    Certificate with respect to the shares of Parent Common Stock the holder
    thereof is entitled to receive in respect thereof and no cash payment in
    lieu of fractional shares shall be paid to any such holder pursuant to
    subsection (e) below until the holder of record of such Certificate shall
    surrender such Certificate to Parent in accordance herewith. Subject to the
    effect of applicable laws, following surrender of any such Certificate,
    there shall be paid to the record holder of the certificates representing
    whole shares of Parent Common Stock issued in exchange therefor, without
    interest, (i) at the time of such surrender, the amount of any cash payable
    in lieu of a fractional share of Parent Common Stock to which such holder is
    entitled pursuant to subsection (e) below and an amount equal to the amount
    of dividends or other distributions with a record date after the Effective
    Time previously paid with respect to whole shares of Parent Common Stock,
    and (ii) at the appropriate payment date, an amount equal to the amount of
    dividends or other distributions with a record date after the Effective Time
    but prior to surrender and a payment date subsequent to surrender payable
    with respect to whole shares of Parent Common Stock, in each case without
    interest.
 
        (d)  NO FURTHER OWNERSHIP RIGHTS IN DOUBLETREE COMMON STOCK AND PROMUS
    COMMON STOCK.  All shares of Parent Common Stock issued upon the surrender
    for exchange of Certificates in accordance with the terms hereof (including
    any cash paid pursuant to subsection (c) or (e) of this Section 2.4) shall
    be deemed to have been issued in full satisfaction of all rights pertaining
    to the shares of Doubletree Common Stock or Promus Common Stock theretofore
    represented by such Certificates, subject, however, to the applicable
    Surviving Corporation's obligation to pay any dividends or make any other
    distributions with a record date prior to the Effective Time which may have
    been declared
 
                                       12
<PAGE>
    or made by Doubletree on such shares of Doubletree Common Stock or by Promus
    on such shares of Promus Common Stock, as the case may be, in accordance
    with the terms of this Agreement (to the extent permitted under Section 5.1)
    prior to the date hereof and which remain unpaid at the Effective Time, and
    from and after the Effective Time there shall be no further registration of
    transfers on the stock transfer books of the Doubletree Surviving
    Corporation or the Promus Surviving Corporation, as the case may be, of the
    shares of Doubletree Common Stock or Promus Common Stock, respectively,
    which were outstanding immediately prior to the Effective Time. If, after
    the Effective Time, Certificates are presented to one of the Surviving
    Corporations or Parent for any reason, such Certificates shall be canceled
    and exchanged as provided in this Section 2.4.
 
        (e)  NO FRACTIONAL SHARES.  No certificate or scrip representing
    fractional shares of Parent Common Stock shall be issued upon the surrender
    for exchange of Certificates representing shares of Promus Common Stock, and
    such fractional share interests will not entitle the owner thereof to vote
    or to any other rights of a stockholder of Parent. Notwithstanding any other
    provision of this Agreement, each holder of shares of Promus Common Stock
    outstanding immediately prior to the Effective Time exchanged pursuant to
    the Promus Merger who would otherwise have been entitled to receive a
    fraction of a share of Parent Common Stock (after taking into account all
    Certificates delivered by such holder) shall receive, in lieu thereof, cash
    (without interest) in an amount equal to such fractional part of a share of
    Parent Common Stock multiplied by the per share sales price of Parent Common
    Stock (as reported on the New York Stock Exchange Composite Tape) on the
    closing of the first day of regular-way trading of Parent Common Stock on
    the New York Stock Exchange (the "NYSE") after the Effective Time.
 
        (f)  TERMINATION OF EXCHANGE FUND.  Any portion of the Exchange Fund
    which remains undistributed to the former stockholders of Doubletree or
    Promus for 180 days after the Effective Time shall be delivered to Parent
    upon demand, and any former stockholder of Doubletree or Promus who has not
    previously complied with this Section 2.4 shall thereafter look only to
    Parent for payment of such former stockholder's claim for Parent Common
    Stock, any cash in lieu of fractional shares of Parent Common Stock and any
    amounts in respect of dividends or distributions with respect to Parent
    Common Stock.
 
        (g)  NO LIABILITY.  None of Doubletree, Promus, Parent or the Exchange
    Agent shall be liable to any holder of shares of Doubletree Common Stock or
    Promus Common Stock, as the case may be, for any shares of Parent Common
    Stock (or cash in lieu of fractional shares of Parent Common Stock or any
    dividends or distributions with respect thereto) delivered to a public
    official pursuant to any applicable abandoned property, escheat or similar
    law.
 
        (h)  WITHHOLDING RIGHTS.  Parent and each of the Surviving Corporations
    shall be entitled to deduct and withhold from the consideration otherwise
    payable pursuant to this Agreement to any holder of Certificates which prior
    to the Effective Time represented shares of Doubletree Common Stock or
    Promus Common Stock such amounts as it is required to deduct and withhold
    with respect to the making of such payment under the Code, or any provision
    of state, local or foreign tax law. To the extent that amounts are so
    withheld by Parent or one of the Surviving Corporations, as the case may be,
    such withheld amounts shall be treated for all purposes of this Agreement as
    having been paid to the holder of the shares of Doubletree Common Stock or
    Promus Common Stock, as the case may be, in respect of which such deduction
    and withholding was made.
 
        (i)  LOST CERTIFICATES.  If any Certificate shall have been lost, stolen
    or destroyed, upon the making of an affidavit of that fact by the person
    claiming such Certificate to be lost, stolen or destroyed and, if required
    by Parent or one of the Surviving Corporations, the posting by such person
    of a bond in such reasonable amount as Parent or such Surviving Corporation
    may direct as indemnity against any claim that may be made against it with
    respect to such Certificate, the Exchange Agent will issue in exchange for
    such lost, stolen or destroyed Certificate the shares of Parent Common Stock
 
                                       13
<PAGE>
    and any cash in lieu of fractional shares, and unpaid dividends and
    distributions on shares of Parent Common Stock deliverable in respect
    thereof pursuant to this Agreement.
 
        (j)  AFFILIATES.  Notwithstanding anything herein to the contrary,
    Certificates surrendered for exchange by any Affiliate (as defined in
    Section 5.12) of Doubletree or Promus shall not be exchanged until (i)
    Parent has received an Affiliate Agreement (as defined in Section 5.12) from
    such Affiliate or (ii) until the later of such date as such shares of Parent
    Common Stock are freely tradable without jeopardizing the pooling of
    interests accounting treatment of the Mergers and without violating the
    Securities Act of 1933, as amended (the "Securities Act").
 
                                  ARTICLE III.
 
                  REPRESENTATIONS AND WARRANTIES OF DOUBLETREE
 
    Doubletree represents and warrants to Promus that the statements contained
in this Article III are true and correct except as set forth herein and in the
disclosure schedule delivered by Doubletree to Promus on or before the date of
this Agreement (the "Doubletree Disclosure Schedule"). The Doubletree Disclosure
Schedule shall be arranged in paragraphs corresponding to the numbered and
lettered paragraphs contained in this Article III and the disclosure in any
paragraph shall qualify other paragraphs in this Article III only to the extent
that it is reasonably apparent from a reading of such disclosure that it also
qualifies or applies to such other paragraphs.
 
    Section 3.1.  ORGANIZATION OF DOUBLETREE.  Each of Doubletree and its
Subsidiaries (as defined below) is duly organized, validly existing and in good
standing under the laws of the jurisdiction of its organization, has all
requisite power to own, lease and operate its property and to carry on its
business as now being conducted and as proposed to be conducted, and is duly
qualified to do business and is in good standing as a foreign corporation or
other entity in each jurisdiction in which the failure to be so qualified would
have a material adverse effect on the business, properties, financial condition
or results of operations of Doubletree and its Subsidiaries, taken as a whole
(an "Doubletree Material Adverse Effect"). A true and correct copy of the
Certificate of Incorporation and Bylaws of Doubletree has been delivered to
Promus. Except as set forth in Doubletree SEC Reports (as defined in Section
3.4) filed prior to the date hereof, neither Doubletree nor any of its
Subsidiaries directly or indirectly owns (other than ownership interests in
Doubletree or in one or more of its Subsidiaries) any equity or similar interest
in, or any interest convertible into or exchangeable or exercisable for, any
corporation, partnership, joint venture or other business association or entity,
excluding (i) securities in any publicly traded company held for investment by
Doubletree and comprising less than five percent (5%) of the outstanding stock
of such company and (ii) any investment or series of related investments with a
book value of less than $15 million. As used in this Agreement, the word
"Subsidiary" means, with respect to any party, any corporation or other
organization, whether incorporated or unincorporated, of which (i) such party or
any other Subsidiary of such party is a general partner (excluding partnerships
the general partnership interests of which held by such party or any Subsidiary
of such party do not have a majority of the economic interests in such
partnership) or (ii) at least a majority of the securities or other interests
having by their terms ordinary voting power to elect a majority of the Board of
Directors or others performing similar functions with respect to such
corporation or other organization is directly or indirectly owned or controlled
by such party or by any one or more of its Subsidiaries, or by such party and
one or more of its Subsidiaries.
 
    Section 3.2.  DOUBLETREE CAPITAL STRUCTURE.
 
    (a) The authorized capital stock of Doubletree consists of 100,000,000
shares of Common Stock, $.01 par value, and 5,000,000 shares of Preferred Stock,
$.01 par value ("Doubletree Preferred Stock"). As of the date hereof, (i)
39,688,458 shares of Doubletree Common Stock were issued and outstanding, all of
which are validly issued, fully paid and nonassessable and (ii) no shares of
Doubletree Common Stock were held in the treasury of Doubletree or by
Subsidiaries of Doubletree. The Doubletree Disclosure
 
                                       14
<PAGE>
Schedule shows the number of shares of Doubletree Common Stock reserved for
future issuance pursuant to stock options granted and outstanding as of the date
hereof and the plans under which such options were granted (collectively, the
"Doubletree Stock Plans"). As of the date of this Agreement, none of the shares
of Doubletree Preferred Stock is issued and outstanding. There are no
obligations, contingent or otherwise, of Doubletree or any of its Subsidiaries
to repurchase, redeem or otherwise acquire any shares of Doubletree Common Stock
or the capital stock of any Subsidiary or to provide funds to or make any
material investment (in the form of a loan, capital contribution or otherwise)
in any such Subsidiary or any other entity other than guarantees of bank
obligations or indebtedness for borrowed money of Subsidiaries entered into in
the ordinary course of business and other than any obligation the failure of
which to perform or satisfy would not have a Doubletree Material Adverse Effect.
All of the outstanding shares of capital stock or other ownership interests of
each of Doubletree's Subsidiaries are duly authorized, validly issued, fully
paid and nonassessable and all such shares (other than directors' qualifying
shares in the case of foreign Subsidiaries) are owned by Doubletree or another
Subsidiary of Doubletree free and clear of all security interests, liens,
claims, pledges, agreements, limitations in Doubletree's voting rights, charges
or other encumbrances of any nature.
 
    (b) Except as set forth in this Section 3.2 or as reserved for future grants
of options under the Doubletree Stock Plans or the Promus Stock Option Agreement
and except for the preferred stock purchase rights issued and issuable under the
Rights Agreement dated as of September 1, 1997 between Doubletree and Harris
Trust Company of California (the "Doubletree Rights Plan"), options to purchase
an aggregate of 20,000 shares of Doubletree Common Stock, issued on June 30,
1994, to GE Investment Hotel Partners I, Limited Partnership and the Warrants to
purchase an aggregate of 262,753 shares of Doubletree Common Stock, issued on
November 8, 1996, to PT Investments Inc. (the "GEPT Warrant"), (i) there are no
shares of capital stock of any class of Doubletree, or any security exchangeable
into or exercisable for such equity securities, issued, reserved for issuance or
outstanding; (ii) there are no options, warrants, equity securities, calls,
rights, commitments or agreements of any character to which Doubletree or any of
its Subsidiaries is a party or by which it is bound obligating Doubletree or any
of its Subsidiaries to issue, deliver or sell, or cause to be issued, delivered
or sold, additional shares of capital stock or other ownership interests of
Doubletree or any of its Subsidiaries or obligating Doubletree or any of its
Subsidiaries to grant, extend, accelerate the vesting of or enter into any such
option, warrant, equity security, call, right, commitment or agreement; and
(iii) to the best knowledge of Doubletree, there are no voting trusts, proxies
or other voting agreements or understandings with respect to the shares of
capital stock of Doubletree. All shares of Doubletree Common Stock subject to
issuance as specified in this Section 3.2 are duly authorized and, upon issuance
on the terms and conditions specified in the instruments pursuant to which they
are issuable, shall be validly issued, fully paid and nonassessable.
 
    Section 3.3.  AUTHORITY; NO CONFLICT; REQUIRED FILINGS AND CONSENTS.
 
    (a) Doubletree has all requisite corporate power and authority to enter into
this Agreement and the Stock Option Agreements and to consummate the
transactions contemplated by this Agreement and the Stock Option Agreements. The
execution and delivery of this Agreement and the Stock Option Agreements and the
consummation of the transactions contemplated by this Agreement and the Stock
Option Agreements by Doubletree have been duly authorized by all necessary
corporate action on the part of Doubletree, subject only to the approval and
adoption of this Agreement and the Doubletree Merger by Doubletree's
stockholders under the DGCL. This Agreement and the Stock Option Agreements have
been duly executed and delivered by Doubletree and constitute the valid and
binding obligations of Doubletree, enforceable in accordance with their terms,
subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
moratorium and similar laws of general applicability relating to or affecting
creditors' rights and to general equity principles (the "Bankruptcy and Equity
Exception").
 
    (b) The execution and delivery of this Agreement and the Stock Option
Agreements by Doubletree does not, and the consummation of the transactions
contemplated by this Agreement and the Stock Option Agreements will not, (i)
conflict with, or result in any violation or breach of, any provision of the
 
                                       15
<PAGE>
Certificate of Incorporation or Bylaws of Doubletree or any of its Subsidiaries,
(ii) result in any violation or breach of, or constitute (with or without notice
or lapse of time, or both) a default (or give rise to a right of termination,
cancellation or acceleration of any obligation or loss of any material benefit)
under, or require a consent or waiver under, any of the terms, conditions or
provisions of any note, bond, mortgage, indenture, lease, contract or other
agreement, instrument or obligation to which Doubletree or any of its
Subsidiaries is a party or by which any of them or any of their properties or
assets may be bound (other than pursuant to the Credit Agreement dated as of
November 8, 1996 by and among Doubletree, Morgan Stanley Senior Funding, Inc.,
The Bank of Nova Scotia and the lenders identified therein) or (iii) conflict
with or violate any permit, concession, franchise, license, judgment, order,
decree, statute, law, ordinance, rule or regulation applicable to Doubletree or
any of its Subsidiaries or any of its or their properties or assets, except in
the case of (ii) and (iii) for any such conflicts, violations, defaults,
terminations, cancellations or accelerations which (x) are not, individually or
in the aggregate, reasonably likely to have a Doubletree Material Adverse Effect
or (y) would not substantially impair or delay the consummation of the
Doubletree Merger.
 
    (c) No consent, approval, order or authorization of, or registration,
declaration or filing with, any court, administrative agency or commission or
other governmental authority or instrumentality ("Governmental Entity") is
required by or with respect to Doubletree or any of its Subsidiaries in
connection with the execution and delivery of this Agreement and the Stock
Option Agreements or the consummation of the transactions contemplated hereby or
thereby, except for (i) the filing of the pre-merger notification report under
the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR
Act"), (ii) the filing of a Certificate of Merger with respect to the Doubletree
Merger with the Delaware Secretary of State, (iii) the filing of the Joint Proxy
Statement/Prospectus (as defined in Section 3.16 below) with the Securities and
Exchange Commission (the "SEC") in accordance with the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), and the Securities Act, (iv) such
consents, approvals, orders, authorizations, permits, filings or registrations
related to, or arising out of, compliance with statutes, rules or regulations
regulating the consumption, sale or serving of alcoholic beverages, (v) such
consents, approvals, orders, authorizations, registrations, declarations and
filings as may be required under applicable state securities laws and the laws
of any foreign country and (vi) such other consents, authorizations, filings,
approvals and registrations which, if not obtained or made, would not (x) be
reasonably likely to have a Doubletree Material Adverse Effect or (y)
substantially impair or delay the consummation of the Doubletree Merger.
 
    Section 3.4.  SEC FILINGS; FINANCIAL STATEMENTS.
 
    (a) Doubletree has filed and made available to Promus all forms, reports and
documents required to be filed by Doubletree with the SEC since January 1, 1996
(collectively, the "Doubletree SEC Reports"). The Doubletree SEC Reports (i) at
the time filed, complied in all material respects with the applicable
requirements of the Securities Act and the Exchange Act, as the case may be, and
(ii) did not at the time they were filed (or if amended or superseded by a
filing prior to the date of this Agreement, then on the date of such filing)
contain any untrue statement of a material fact or omit to state a material fact
required to be stated in such Doubletree SEC Reports or necessary in order to
make the statements in such Doubletree SEC Reports, in the light of the
circumstances under which they were made, not misleading. None of Doubletree's
Subsidiaries is required to file any forms, reports or other documents with the
SEC.
 
    (b) Each of the consolidated financial statements (including, in each case,
any related notes) of Doubletree contained in the Doubletree SEC Reports
complied as to form in all material respects with the applicable published rules
and regulations of the SEC with respect thereto, was prepared in accordance with
generally accepted accounting principles applied on a consistent basis
throughout the periods involved (except as may be indicated in the notes to such
financial statements or, in the case of unaudited statements, as permitted by
Form 10-Q under the Exchange Act) and fairly presented the consolidated
financial position of Doubletree and its Subsidiaries as of the dates and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited interim financial statements
 
                                       16
<PAGE>
were or are subject to normal and recurring year-end adjustments which were not
or are not expected to be material in amount. The audited balance sheet of
Doubletree as of December 31, 1996 is referred to herein as the "Doubletree
Balance Sheet."
 
    Section 3.5.  NO UNDISCLOSED LIABILITIES.  Except as disclosed in the
Doubletree SEC Reports filed prior to the date hereof, and except for normal or
recurring liabilities incurred since December 31, 1996 in the ordinary course of
business consistent with past practices, Doubletree and its Subsidiaries do not
have any liabilities, either accrued, contingent or otherwise (whether or not
required to be reflected in financial statements in accordance with generally
accepted accounting principles), and whether due or to become due, which
individually or in the aggregate are reasonably likely to have a Doubletree
Material Adverse Effect.
 
    Section 3.6.  ABSENCE OF CERTAIN CHANGES OF EVENTS.  Except as disclosed in
the Doubletree SEC Reports filed prior to the date hereof, since the date of the
Doubletree Balance Sheet, Doubletree and its Subsidiaries have conducted their
businesses only in the ordinary course and in a manner consistent with past
practice and, since such date, there has not been (i) any event, development,
state of affairs or condition, or series or combination of events, developments,
states of affairs or conditions, which, individually or in the aggregate, has
had or is reasonably likely to have a Doubletree Material Adverse Effect (other
than events, developments, states of affairs or conditions that are the effect
or result of actions taken by Promus or economic factors affecting the economy
as a whole or the industry in which Doubletree competes); (ii) any damage,
destruction or loss (whether or not covered by insurance) with respect to
Doubletree or any of its Subsidiaries which is reasonably likely to have a
Doubletree Material Adverse Effect; (iii) any material change by Doubletree in
its accounting methods, principles or practices to which Promus has not
previously consented in writing; (iv) any revaluation by Doubletree of any of
its assets which is reasonably likely to have a Doubletree Material Adverse
Effect; or (v) any other action or event that would have required the consent of
Promus pursuant to Section 5.1 of this Agreement had such action or event
occurred after the date of this Agreement other than such actions or events
that, individually or in the aggregate, have not had or are not reasonably
likely to have a Doubletree Material Adverse Effect.
 
    Section 3.7.  TAXES.
 
    (a) For the purposes of this Agreement, a "Tax" or, collectively, "Taxes,"
means any and all federal, state, local and foreign taxes, assessments and other
governmental charges, duties, impositions and liabilities, including taxes based
upon or measured by gross receipts, income, profits, sales, use and occupation,
and value added, ad valorem, transfer, gains, franchise, withholding, payroll,
recapture, employment, excise, unemployment insurance, social security, business
license, occupation, business organization, stamp, environmental and property
taxes, together with all interest, penalties and additions imposed with respect
to such amounts. For purposes of this Agreement, "Taxes" also includes any
obligations under any agreements or arrangements with any other person with
respect to Taxes of such other person (including pursuant to Treas. Reg. Section
1.1502-6 or comparable provisions of state, local or foreign tax law) and
including any liability for Taxes of any predecessor entity.
 
    (b) Doubletree and each of its Subsidiaries have (i) filed all federal,
state, local and foreign Tax returns and reports required to be filed by them
prior to the date of this Agreement (taking into account all applicable
extensions), (ii) paid or accrued all Taxes due and payable, and (iii) paid or
accrued all Taxes for which a notice of assessment or collection has been
received (other than amounts being contested in good faith by appropriate
proceedings), except in the case of clauses (i), (ii) or (iii) for any such
filings, payments or accruals that are not reasonably likely, individually or in
the aggregate, to have a Doubletree Material Adverse Effect. Neither the
Internal Revenue Service (the "IRS") nor any other taxing authority has asserted
any claim for Taxes, or to the actual knowledge of the executive officers of
Doubletree, is threatening to assert any claims for Taxes, which claims,
individually or in the aggregate, are reasonably likely to have a Doubletree
Material Adverse Effect. Doubletree and each of its Subsidiaries have withheld
 
                                       17
<PAGE>
or collected and paid over to the appropriate governmental authorities (or are
properly holding for such payment) all Taxes required by law to be withheld or
collected, except for amounts that are not reasonably likely, individually or in
the aggregate, to have a Doubletree Material Adverse Effect. Neither Doubletree
nor any of its Subsidiaries has made an election under Section 341(f) of the
Code, except for any such election that shall not have a Doubletree Material
Adverse Effect. There are no liens for Taxes upon the assets of Doubletree or
any of its Subsidiaries (other than liens for Taxes that are not yet due or
delinquent or that are being contested in good faith by appropriate
proceedings), except for liens that are not reasonably likely, individually or
in the aggregate, to have a Doubletree Material Adverse Effect.
 
    (c) Neither Doubletree nor any of its Subsidiaries is or has been a member
of an affiliated group of corporations filing a consolidated federal income tax
return (or a group of corporations filing a consolidated, combined or unitary
income tax return under comparable provisions of state, local or foreign tax
law) for any taxable period beginning on or after the taxable period ending
December 31, 1993, other than a group the common parent of which is or was
Doubletree or any Subsidiary of Doubletree.
 
    (d) Neither Doubletree nor any of its Subsidiaries has any obligation under
any agreement or arrangement with any other person with respect to Taxes of such
other person (including pursuant to Treas. Reg. Section 1.1502-6 or comparable
provisions of state, local or foreign tax law) and including any liability for
Taxes of any predecessor entity, except for obligations that are not reasonably
likely, individually or in the aggregate, to have a Doubletree Material Adverse
Effect.
 
    Section 3.8.  PROPERTIES.
 
    (a) Neither Doubletree nor any of its Subsidiaries is in default under any
leases for real property providing for the occupancy, in each case, of (i) a
hotel or (ii) other facilities in excess of 50,000 square feet (collectively
"Material Lease(s)"), except where the existence of such defaults, individually
or in the aggregate, is not reasonably likely to have a Doubletree Material
Adverse Effect.
 
    (b) With respect to each item of real property that Doubletree or any of its
Subsidiaries owns, except for such matters that, individually or in the
aggregate, are not reasonably likely to have a Doubletree Material Adverse
Effect: (i) Doubletree or its Subsidiary has good and clear record and
marketable title to such property, insurable by a recognized national title
insurance company at standard rates, free and clear of any security interest,
easement, covenant or other restriction, except for recorded easements,
covenants and other restrictions which do not materially impair the current uses
or occupancy of such property; and (ii) the improvements constructed on such
property are in good condition, and all mechanical and utility systems servicing
such improvements are in good condition, free in each case of material defects.
 
    Section 3.9.  INTELLECTUAL PROPERTY  Doubletree owns, or is licensed or
otherwise possesses legally enforceable rights to use, all trademarks, trade
names, service marks, copyrights, and any applications for such trademarks,
trade names, service marks and copyrights, know-how, computer software programs
or applications and tangible or intangible proprietary information or material
that are necessary to conduct the business of Doubletree as currently conducted,
subject to such exceptions that, individually and in the aggregate, would not be
reasonably likely to have a Doubletree Material Adverse Effect. Doubletree has
no knowledge of any assertion or claim challenging the validity of any of such
intellectual property.
 
    Section 3.10.  AGREEMENTS, CONTRACTS AND COMMITMENTS.
 
    (a) Doubletree has not breached, or received in writing any claim or notice
that it has breached, any of the terms or conditions of any material agreement,
contract or commitment filed as an exhibit to the Doubletree SEC Reports
("Doubletree Material Contracts") in such a manner as, individually or in the
aggregate, are reasonably likely to have a Doubletree Material Adverse Effect.
Each Doubletree Material Contract that has not expired by its terms is in full
force and effect.
 
    (b) Without limiting Section 3.10(a), each of the management contracts and
franchise agreements to which Doubletree is a party and each of Doubletree's
Material Leases (i) is valid and binding in
 
                                       18
<PAGE>
accordance with its terms and is in full force and effect, (ii) neither
Doubletree nor any of its Subsidiaries is in default in any material respect
thereof, nor does any condition exist that with notice or lapses of time or both
would constitute a material default thereunder, and (iii) no party has given any
written or (to the knowledge of Doubletree) oral notice of termination or
cancellation thereof or that such party intends to assert a breach thereof, or
seek to terminate or cancel, any such agreement, contract or lease, in each case
as a result of the transactions contemplated hereby, subject to such exceptions
that, individually and in the aggregate, would not be reasonably likely to have
a Doubletree Material Adverse Effect.
 
    Section 3.11.  LITIGATION.  Except as described in the Doubletree SEC
Reports filed prior to the date hereof, there is no action, suit or proceeding,
claim, arbitration or investigation against Doubletree pending or as to which
Doubletree has received any written notice of assertion, which, individually or
in the aggregate, is reasonably likely to have a Doubletree Material Adverse
Effect or a material adverse effect on the ability of Doubletree to consummate
the transactions contemplated by this Agreement.
 
    Section 3.12.  ENVIRONMENTAL MATTERS.
 
    (a) To the knowledge of Doubletree and except as disclosed in the Doubletree
SEC Reports filed prior to the date hereof and except for such matters that,
individually or in the aggregate, are not reasonably likely to have a Doubletree
Material Adverse Effect: (i) Doubletree and its Subsidiaries have complied with
all applicable Environmental Laws (as defined in Section 3.12(b)); (ii) the
properties currently owned or operated by Doubletree and its Subsidiaries
(including soils, groundwater, surface water, buildings or other structures) are
not contaminated with any Hazardous Substances (as defined in Section 3.12(c));
(iii) the properties formerly owned or operated by Doubletree or any of its
Subsidiaries were not contaminated with Hazardous Substances during the period
of ownership or operation by Doubletree or any of its Subsidiaries; (iv) neither
Doubletree nor its Subsidiaries are subject to liability for any Hazardous
Substance disposal or contamination on any third party property; (v) neither
Doubletree nor any of its Subsidiaries has been associated with any release or
threat of release of any Hazardous Substance; (vi) neither Doubletree nor any of
its Subsidiaries has received any notice, demand, letter, claim or request for
information alleging that Doubletree or any of its Subsidiaries may be in
violation of or liable under any Environmental Law; (vii) neither Doubletree nor
any of its Subsidiaries is subject to any orders, decrees, injunctions or other
arrangements with any Governmental Entity or is subject to any indemnity or
other agreement with any third party relating to liability under any
Environmental Law or relating to Hazardous Substances; and (viii) there are no
circumstances or conditions involving Doubletree or any of its Subsidiaries that
could reasonably be expected to result in any claims, liability, investigations,
costs or restrictions on the ownership, use or transfer of any property of
Doubletree or any of its Subsidiaries pursuant to any Environmental Law.
 
    (b) As used herein, the term "Environmental Law" means any federal, state,
local or foreign law, regulation, order, decree, permit, authorization, opinion,
common law or agency requirement relating to: (A) the protection, investigation
or restoration of the environment, health and safety, or natural resources, (B)
the handling, use, presence, disposal, release or threatened release of any
Hazardous Substance or (C) noise, odor, wetlands, pollution, contamination or
any injury or threat of injury to persons or property.
 
    (c) As used herein, the term "Hazardous Substance" means any substance that
is: (A) listed, classified or regulated pursuant to any Environmental Law; (B)
any petroleum product or by-product, asbestos-containing material,
lead-containing paint or plumbing, polychlorinated biphenyls, radioactive
materials or radon; or (C) any other substance which is the subject of
regulatory action by any Governmental Entity pursuant to any Environmental Law.
 
    Section 3.13.  EMPLOYEE BENEFIT PLANS.
 
    (a) For purposes of this Agreement, the "Doubletree Employee Plans" shall
mean all employee benefit plans (as defined in Section 3(3) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA")) and all bonus,
stock option, stock purchase, incentive, deferred compensation,
 
                                       19
<PAGE>
supplemental retirement, severance and other similar employee benefit plans, and
all unexpired severance agreements, written or otherwise, for the benefit of, or
relating to, any current or former employee of Doubletree or any trade or
business (whether or not incorporated) which is under common control with
Doubletree within the meaning of Section 414 of the Code (an "ERISA Affiliate"),
or any Subsidiary of Doubletree (together, the "Doubletree Employee Plans").
Doubletree has listed in Section 3.13 of the Doubletree Disclosure Schedule all
Doubletree Employee Plans other plans that are "employee welfare benefit plans"
within the meaning of Section 3(1) of ERISA.
 
    (b) With respect to each Doubletree Employee Plan, Doubletree has made
available to Promus, a true and correct copy of (i) the most recent annual
report (Form 5500) filed with the IRS, (ii) such Doubletree Employee Plan and
all amendments thereto, (iii) each trust agreement and group annuity contract,
if any, and all amendments thereto relating to such Doubletree Employee Plan and
(iv) the most recent actuarial report or valuation relating to a Doubletree
Employee Plan subject to Title IV of ERISA.
 
    (c) With respect to the Doubletree Employee Plans, individually and in the
aggregate, no event has occurred, and to the knowledge of Doubletree, there
exists no condition or set of circumstances in connection with which Doubletree
could be subject to any liability that is reasonably likely to have a Doubletree
Material Adverse Effect under ERISA, the Code or any other applicable law.
 
    (d) With respect to the Doubletree Employee Plans, individually and in the
aggregate, there are no funded benefit obligations for which contributions have
not been made or properly accrued and there are no unfunded benefit obligations
which have not been accounted for by reserves, or otherwise properly footnoted
in accordance with generally accepted accounting principles, on the financial
statements of Doubletree, except for obligations which, individually or in the
aggregate, are not reasonably likely to have a Doubletree Material Adverse
Effect.
 
    (e) Except as disclosed in the Doubletree SEC Reports filed prior to the
date of this Agreement, and except as provided for in this Agreement, neither
Doubletree nor any of its Subsidiaries is a party to any oral or written (i)
agreement with any officer or other key employee of Doubletree or any of its
Subsidiaries, the benefits of which are contingent, or the terms of which are
materially altered, upon the occurrence of a transaction involving Doubletree of
the nature contemplated by this Agreement, (ii) agreement with any officer of
Doubletree providing any term of employment or compensation guarantee extending
for a period longer than one year from the date hereof and for the payment of
compensation in excess of $100,000 per annum, or (iii) agreement or plan,
including any stock option plan, stock appreciation right plan, restricted stock
plan or stock purchase plan, any of the benefits of which will be increased, the
vesting of the benefits of which will be accelerated or the funding of benefits
of which will be required, by the occurrence of any of the transactions
contemplated by this Agreement or the value of any of the benefits of which will
be calculated on the basis of any of the transactions contemplated by this
Agreement.
 
    Section 3.14.  COMPLIANCE WITH LAWS.  Doubletree has complied with, is not
in violation of, and has not received any notices of violation with respect to,
any federal, state or local statute, law or regulation with respect to the
conduct of its business, or the ownership or operation of its business, except
for failures to comply or violations which, individually or in the aggregate,
have not had and are not reasonably likely to have a Doubletree Material Adverse
Effect.
 
    Section 3.15.  ACCOUNTING AND TAX MATTERS.
 
    (a) To the best knowledge of Doubletree, after consulting with its
independent auditors with respect to clause (i) below and its tax advisors with
respect to clause (ii) below, neither Doubletree nor any of its Affiliates (as
defined in Section 5.12) has taken or agreed to take any action which would (i)
prevent Parent from accounting for the business combination to be effected by
the Mergers as a pooling of interests or (ii) prevent the Doubletree Merger from
qualifying as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Promus Merger, as a transfer of property to Parent
 
                                       20
<PAGE>
by holders of Doubletree Common Stock described in Section 351 of the Code.
Except as contemplated by the Doubletree Option Agreement, neither Doubletree
nor any of its Subsidiaries owns any shares of Promus Common Stock or other
securities convertible into shares of Promus Common Stock (exclusive of any
shares owned by Doubletree's employee benefit plans).
 
    (b) To the best knowledge of Doubletree, the stockholders of Doubletree as a
group have no present plan, intention or arrangement to sell or otherwise
dispose of such number of the shares of Parent Common Stock received in the
Doubletree Merger as would reduce their ownership in Parent Common Stock to a
number of shares having a value, as of the date of the Doubletree Merger, of
less than eighty percent (80%) of the value of all the formerly outstanding
stock of Doubletree as of the same date.
 
    Section 3.16.  REGISTRATION STATEMENT; JOINT PROXY
STATEMENT/PROSPECTUS.  The information to be supplied by Doubletree for
inclusion in the registration statement on Form S-4 pursuant to which shares of
Parent Common Stock issued in the Mergers will be registered under the
Securities Act (the "Registration Statement"), shall not at the time the
Registration Statement is declared effective by the SEC contain any untrue
statement of a material fact or omit to state any material fact required to be
stated in the Registration Statement or necessary in order to make the
statements in the Registration Statement, in light of the circumstances under
which they were made, not misleading. The information supplied by Doubletree for
inclusion in the joint proxy statement/prospectus to be sent to the stockholders
of Promus and Doubletree in connection with the meeting of Doubletree's
stockholders (the "Doubletree Stockholders' Meeting") and the meeting of
Promus's stockholders (the "Promus Stockholders' Meeting") to consider this
Agreement and the Mergers (the "Joint Proxy Statement/Prospectus") shall not, on
the date the Joint Proxy Statement/Prospectus is first mailed to stockholders of
Doubletree or Promus, at the time of the Doubletree Stockholders' Meeting and
the Promus Stockholders' Meeting and at the Effective Time, contain any
statement which, at such time and in light of the circumstances under which it
shall be made, is false or misleading with respect to any material fact, omit to
state any material fact necessary in order to make the statements made in the
Joint Proxy Statement/Prospectus not false or misleading, or omit to state any
material fact necessary to correct any statement in any earlier communication
with respect to the solicitation of proxies for the Doubletree Stockholders'
Meeting or the Promus Stockholders' Meeting which has become false or
misleading. If at any time prior to the Effective Time any event relating to
Doubletree or any of its Affiliates, officers or directors should be discovered
by Doubletree which should be set forth in an amendment to the Registration
Statement or a supplement to the Joint Proxy Statement/ Prospectus, Doubletree
shall promptly inform Promus.
 
    Section 3.17.  LABOR MATTERS.  Except as disclosed in the Doubletree SEC
Reports filed prior to the date hereof, neither Doubletree nor any of its
Subsidiaries is a party to or otherwise bound by any collective bargaining
agreement, contract or other agreement or understanding with a labor union or
labor organization, nor, as of the date hereof, is Doubletree or any of its
Subsidiaries the subject of any material proceeding asserting that Doubletree or
any of its Subsidiaries has committed an unfair labor practice or is seeking to
compel it to bargain with any labor union or labor organization nor, as of the
date of this Agreement, is there pending or, to the knowledge of the executive
officers of Doubletree, threatened, any material labor strike, dispute, walkout,
work stoppage, slow-down or lockout involving Doubletree or any of its
Subsidiaries.
 
    Section 3.18.  INSURANCE.  All material fire and casualty, general
liability, business interruption, product liability, and sprinkler and water
damage insurance policies maintained by Doubletree or any of its Subsidiaries
are with reputable insurance carriers, provide full and adequate coverage for
all normal risks incident to the business of Doubletree and its Subsidiaries and
their respective properties and assets, and are in character and amount at least
equivalent to that carried by persons engaged in similar businesses and subject
to the same or similar perils or hazards, except for any such failures to
maintain insurance policies that, individually or in the aggregate, are not
reasonably likely to have a Doubletree Material Adverse Effect.
 
                                       21
<PAGE>
    Section 3.19.  DOUBLETREE LONG-RANGE PLANS.  Doubletree has provided to
Promus copies of Doubletree's most recent long-range plans prepared in draft
form by Doubletree's management and Doubletree has not adopted any other
long-range plans since January 1, 1997.
 
    Section 3.20.  OPINION OF FINANCIAL ADVISOR.  The financial advisor of
Doubletree, Morgan Stanley & Co. Incorporated, has delivered to Doubletree an
opinion dated the date of this Agreement to the effect that the Doubletree
Exchange Ratio is fair to the holders of Doubletree Common Stock from a
financial point of view.
 
    Section 3.21.  NO EXISTING DISCUSSIONS.  As of the date hereof, Doubletree
is not engaged, directly or indirectly, in any discussions or negotiations with
any other party with respect to an Acquisition Proposal (as defined in Section
5.3).
 
    Section 3.22.  SECTION 203 OF THE DGCL NOT APPLICABLE.  The restrictions
contained in Section 203 of the DGCL applicable to a "business combination" (as
defined in DGCL Section 203) will not apply to the authorization, execution,
delivery and performance of this Agreement or the Stock Option Agreements by
Doubletree or the Stockholder Support Agreement by the parties thereto or the
consummation of the Doubletree Merger by Doubletree. No other "fair price,"
"moratorium," "control share acquisition" or other similar anti-takeover statute
or regulation is applicable to Doubletree or (by reason of Doubletree's
participation therein) the Doubletree Merger or the other transactions
contemplated by this Agreement.
 
    Section 3.23.  DOUBLETREE RIGHTS PLAN.  Under the terms of the Doubletree
Rights Plan, neither the execution of this Agreement, the Promus Stock Option
Agreement, the Stockholder Support Agreement, nor the transactions contemplated
hereby or thereby, will cause a Distribution Date to occur or cause the rights
issued pursuant to the Doubletree Rights Plan to become exercisable, and all
such rights shall become non-exercisable at the Effective Time.
 
                                  ARTICLE IV.
 
                    REPRESENTATIONS AND WARRANTIES OF PROMUS
 
    Promus represents and warrants to Doubletree that the statements contained
in this Article IV are true and correct, except as set forth in the disclosure
schedule delivered by Promus to Doubletree on or before the date of this
Agreement (the "Promus Disclosure Schedule"). The Promus Disclosure Schedule
shall be arranged in paragraphs corresponding to the numbered and lettered
paragraphs contained in this Article IV and the disclosure in any paragraph
shall qualify other paragraphs in this Article IV only to the extent that it is
reasonably apparent from a reading of such document that it also qualifies or
applies to such other paragraphs.
 
    Section 4.1.  ORGANIZATION OF PROMUS.  Each of Promus and its Subsidiaries
is duly organized, validly existing and in good standing under the laws of the
jurisdiction of its organization, has all requisite power to own, lease and
operate its property and to carry on its business as now being conducted and as
proposed to be conducted, and is duly qualified to do business and is in good
standing as a foreign corporation or other entity in each jurisdiction in which
the failure to be so qualified would have a material adverse effect on the
business, properties, financial condition or results of operations of Promus and
its Subsidiaries, taken as a whole (a "Promus Material Adverse Effect"). A true
and correct copy of the Certificate of Incorporation and Bylaws of Promus has
been delivered to Doubletree. Except as set forth in the Promus SEC Reports (as
defined in Section 4.4) filed prior to the date hereof, neither Promus nor any
of its Subsidiaries directly or indirectly owns (other than ownership interests
in Promus or in one or more of its Subsidiaries) any equity or similar interest
in, or any interest convertible into or exchangeable or exercisable for, any
corporation, partnership, joint venture or other business association or entity,
excluding (i) securities in any publicly traded company held for investment by
Promus and comprising less than five percent (5%) of the outstanding stock of
such company and (ii) any investment or series of related investments with a
book value of less than $15 million.
 
                                       22
<PAGE>
    Section 4.2.  PROMUS CAPITAL STRUCTURE.
 
    (a) The authorized capital stock of Promus consists of 360,000,000 shares of
Common Stock, $.10 par value, 150,000 shares of Preferred Stock, $100.00 par
value ("Promus Preferred Stock") and 5,000,000 shares of Special Stock, par
value $1.12 1/2 ("Promus Special Stock"). As of the date hereof, (i) 49,896,911
shares of Promus Common Stock were issued and outstanding, all of which are
validly issued, fully paid and nonassessable, and (ii) 1,580,101 additional
shares of Promus Common Stock were held in the treasury of Promus or by
Subsidiaries of Promus. The Promus Disclosure Schedule shows the number of
shares of Promus Common Stock reserved for future issuance pursuant to stock
options granted and outstanding as of the date hereof and the plans under which
such options were granted (collectively, the "Promus Stock Plans"). As of the
date of this Agreement, none of the shares of Promus Preferred Stock or Promus
Special Stock are issued and outstanding. There are no obligations, contingent
or otherwise, of Promus or any of its Subsidiaries to repurchase, redeem or
otherwise acquire any shares of Promus Common Stock or the capital stock of any
Subsidiary or to provide funds to or make any material investment (in the form
of a loan, capital contribution or otherwise) in any such Subsidiary or any
other entity other than guarantees of bank obligations or indebtedness for
borrowed money of Subsidiaries entered into in the ordinary course of business
and other than any obligation the failure of which to perform or satisfy would
not have a Promus Material Adverse Effect. All of the outstanding shares of
capital stock or other ownership interests of each of Promus's Subsidiaries are
duly authorized, validly issued, fully paid and nonassessable and all such
shares (other than directors' qualifying shares in the case of foreign
Subsidiaries) are owned by Promus or another Subsidiary of Promus free and clear
of all security interests, liens, claims, pledges, agreements, limitations in
Promus's voting rights, charges or other encumbrances of any nature.
 
    (b) Except as set forth in this Section 4.2 or as reserved for future grants
of options under the Promus Stock Plans or the Doubletree Stock Option
Agreement, and except for the preferred stock purchase rights issued and
issuable under the Rights Agreement dated as of June 30, 1995 between Promus and
Continental Stock Transfer & Trust Company (the "Promus Rights Plan"), (i) there
are no shares of capital stock of any class of Promus, or any security
exchangeable into or exercisable for such equity securities, issued, reserved
for issuance or outstanding; (ii) there are no options, warrants, equity
securities, calls, rights, commitments or agreements of any character to which
Promus or any of its Subsidiaries is a party or by which it is bound obligating
Promus or any of its Subsidiaries to issue, deliver or sell, or cause to be
issued, delivered or sold, additional shares of capital stock or other ownership
interests of Promus or any of its Subsidiaries or obligating Promus or any of
its Subsidiaries to grant, extend, accelerate the vesting of or enter into any
such option, warrant, equity security, call, right, commitment or agreement; and
(iii) to the best knowledge of Promus, there are no voting trusts, proxies or
other voting agreements or understandings with respect to the shares of capital
stock of Promus. All shares of Promus Common Stock subject to issuance as
specified in this Section 4.2 are duly authorized and, upon issuance on the
terms and conditions specified in the instruments pursuant to which they are
issuable, shall be validly issued, fully paid and nonassessable.
 
    Section 4.3.  AUTHORITY; NO CONFLICT; REQUIRED FILINGS AND CONSENTS.
 
    (a) Promus has all requisite corporate power and authority to enter into
this Agreement, the Stock Option Agreements and the Stockholder Support
Agreement and to consummate the transactions contemplated by this Agreement, the
Stock Option Agreements and the Stockholder Support Agreement. The execution and
delivery of this Agreement, the Stock Option Agreements and the Stockholder
Support Agreement and the consummation of the transactions contemplated by this
Agreement, the Stock Option Agreements and the Stockholder Support Agreement by
Promus have been duly authorized by all necessary corporate action on the part
of Promus, subject only to the approval and adoption of this Agreement and the
Promus Merger by Promus's stockholders under the DGCL. This Agreement, the Stock
Option Agreements and the Stockholder Support Agreement have been duly executed
and delivered by Promus and constitute the valid and binding obligations of
Promus, enforceable in accordance with their terms, subject to the Bankruptcy
and Equity Exception.
 
                                       23
<PAGE>
    (b) The execution and delivery of this Agreement, the Stock Option
Agreements and the Stockholder Support Agreement by Promus does not, and the
consummation of the transactions contemplated by this Agreement, the Stock
Option Agreements and the Stockholder Support Agreement will not, (i) conflict
with, or result in any violation or breach of, any provision of the Certificate
of Incorporation or Bylaws of Promus or any of its Subsidiaries, (ii) result in
any violation or breach of, or constitute (with or without notice or lapse of
time, or both) a default (or give rise to a right of termination, cancellation
or acceleration of any obligation or loss of any material benefit) under, or
require a consent or waiver under, any of the terms, conditions or provisions of
any note, bond, mortgage, indenture, lease, contract or other agreement,
instrument or obligation to which Promus or any of its Subsidiaries is a party
or by which any of them or any of their properties or assets may be bound (other
than pursuant to the Tranche A Credit Agreement or the Tranche B Credit
Agreement, each dated as of June 7, 1995, as amended, by and among Promus and
certain of its subsidiaries and NationsBank, N.A. (Carolinas)) or (iii) conflict
with or violate any permit, concession, franchise, license, judgment, order,
decree, statute, law, ordinance, rule or regulation applicable to Promus or any
of its Subsidiaries or any of its or their properties or assets, except in the
case of (ii) and (iii) for any such conflicts, violations, defaults,
terminations, cancellations or accelerations which (x) are not, individually or
in the aggregate, reasonably likely to have a Promus Material Adverse Effect or
(y) would not substantially impair or delay the consummation of the Promus
Merger.
 
    (c) No consent, approval, order or authorization of, or registration,
declaration or filing with, any Governmental Entity is required by or with
respect to Promus or any of its Subsidiaries in connection with the execution
and delivery of this Agreement, the Stock Option Agreements and the Stockholder
Support Agreement or the consummation of the transactions contemplated hereby or
thereby, except for (i) the filing of the pre-merger notification report under
the HSR Act, (ii) the filing of a Certificate of Merger with respect to the
Promus Merger with the Delaware Secretary of State, (iii) the filing of the
Joint Proxy Statement/Prospectus with the SEC in accordance with the Exchange
Act and the Securities Act, (iv) such consents, approvals, orders,
authorizations, permits, filings, or registrations related to, or arising out
of, compliance with statutes, rules or regulations regulating the consumption,
sale or serving of alcoholic beverages, (v) such consents, approvals, orders,
authorizations, registrations, declarations and filings as may be required under
applicable state securities laws and the laws of any foreign country and (vi)
such other consents, authorizations, filings, approvals and registrations which,
if not obtained or made, would not (x) be reasonably likely to have a Promus
Material Adverse Effect or (y) substantially impair or delay the consummation of
the Promus Merger.
 
    Section 4.4.  SEC FILINGS; FINANCIAL STATEMENTS.
 
    (a) Promus has filed and made available to Doubletree all forms, reports and
documents required to be filed by Promus with the SEC since January 1, 1996
(collectively, the "Promus SEC Reports"). The Promus SEC Reports (i) at the time
filed, complied in all material respects with the applicable requirements of the
Securities Act and the Exchange Act, as the case may be, and (ii) did not at the
time they were filed (or if amended or superseded by a filing prior to the date
of this Agreement, then on the date of such filing) contain any untrue statement
of a material fact or omit to state a material fact required to be stated in
such Promus SEC Reports or necessary in order to make the statements in such
Promus SEC Reports, in the light of the circumstances under which they were
make, not misleading. Other than Promus Hotels, Inc., none of Promus's
Subsidiaries is required to file any forms, reports or other documents with the
SEC.
 
    (b) Each of the consolidated financial statements (including, in each case,
any related notes) of Promus contained in the Promus SEC Reports complied as to
form in all material respects with the applicable published rules and
regulations of the SEC with respect thereto, was prepared in accordance with
generally accepted accounting principles applied on a consistent basis
throughout the periods involved (except as may be indicated in the notes to such
financial statements or, in the case of unaudited statements, as permitted by
Form 10-Q under the Exchange Act) and fairly presented the consolidated
 
                                       24
<PAGE>
financial position of Promus and its Subsidiaries as of the dates and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited interim financial statements were or are subject to
normal and recurring year-end adjustments which were not or are not expected to
be material in amount. The audited balance sheet of Promus as of December 31,
1996 is referred to herein as the "Promus Balance Sheet."
 
    Section 4.5.  NO UNDISCLOSED LIABILITIES.  Except as disclosed in the Promus
SEC Reports filed prior to the date hereof, and except for normal or recurring
liabilities incurred since December 31, 1996 in the ordinary course of business
consistent with past practices, Promus and its Subsidiaries do not have any
liabilities, either accrued, contingent or otherwise (whether or not required to
be reflected in financial statements in accordance with generally accepted
accounting principles), and whether due or to become due, which individually or
in the aggregate, are reasonably likely to have a Promus Material Adverse
Effect.
 
    Section 4.6.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed in
the Promus SEC Reports filed prior to the date hereof, since the date of the
Promus Balance Sheet, Promus and its Subsidiaries have conducted their
businesses only in the ordinary course and in a manner consistent with past
practice and, since such date, there has not been (i) any event, development,
state of affairs or condition, or series or combination of events, developments,
states of affairs or conditions, which, individually or in the aggregate, has
had or which is reasonably likely to have a Promus Material Adverse Effect
(other than events, developments, states of affairs or conditions that are the
effect or result of actions taken by Doubletree or economic factors affecting
the economy as a whole or the industry in which Promus competes); (ii) any
damage, destruction or loss (whether or not covered by insurance) with respect
to Promus or any of its Subsidiaries which is reasonably likely to have a Promus
Material Adverse Effect; (iii) any material change by Promus in its accounting
methods, principles or practices to which Doubletree has not previously
consented in writing; (iv) any revaluation by Promus of any of its assets which
is reasonably likely to have a Promus Material Adverse Effect; or (v) any other
action or event that would have required the consent of Doubletree pursuant to
Section 5.1 of this Agreement had such action or event occurred after the date
of this Agreement, other than such actions or events that, individually or in
the aggregate, have not had or are not reasonably likely to have a Promus
Material Adverse Effect.
 
    Section 4.7.  TAXES.
 
    (a) Promus and each of its Subsidiaries have (i) filed all federal, state,
local and foreign Tax returns and reports required to be filed by them prior to
the date of this Agreement (taking into account all applicable extensions), (ii)
paid or accrued all Taxes due and payable, and (iii) paid or accrued all Taxes
for which a notice of assessment or collection has been received (other than
amounts being contested in good faith by appropriate proceedings), except in the
case of clauses (i), (ii) or (iii) for any such filings, payments or accruals
that are not reasonably likely, individually or in the aggregate, to have a
Promus Material Adverse Effect. Neither the IRS nor any other taxing authority
has asserted any claim for Taxes, or to the actual knowledge of the executive
officers of Promus, is threatening to assert any claims for Taxes, which claims,
individually or in the aggregate, are reasonably likely to have a Promus
Material Adverse Effect. Promus and each of its Subsidiaries have withheld or
collected and paid over to the appropriate governmental authorities (or are
properly holding for such payment) all Taxes required by law to be withheld or
collected, except for amounts that are not reasonably likely, individually or in
the aggregate, to have a Promus Material Adverse Effect. Neither Promus nor any
of its Subsidiaries has made an election under Section 341(f) of the Code,
except for any such election that shall not have a Promus Material Adverse
Effect. There are no liens for Taxes upon the assets of Promus or any of its
Subsidiaries (other than liens for Taxes that are not yet due or delinquent or
that are being contested in good faith by appropriate proceedings), except for
liens that are not reasonably likely, individually or in the aggregate, to have
a Promus Material Adverse Effect.
 
                                       25
<PAGE>
    (b) Neither Promus nor any of its Subsidiaries is or has been a member of an
affiliated group of corporations filing a consolidated federal income tax return
(or a group of corporations filing a consolidated, combined or unitary income
tax return under comparable provisions of state, local or foreign tax law) for
any taxable period beginning on or after February 7, 1990, other than a group
the common parent of which is or was The Promus Companies Incorporated, Promus
or any Subsidiary of Promus.
 
    (c) Neither Promus nor any of its Subsidiaries has any obligation under any
agreement or arrangement with any other person with respect to Taxes of such
other person (including pursuant to Treas. Reg. Section 1.1502-6 or comparable
provisions of state, local or foreign tax law) and including any liability for
Taxes of any predecessor entity, except for obligations that are not reasonably
likely, individually or in the aggregate, to have an Promus Material Adverse
Effect.
 
    Section 4.8.  PROPERTIES.
 
    (a) Neither Promus nor any of its Subsidiaries is in default under any
Material Leases, except where the existence of such defaults, individually or in
the aggregate, is not reasonably likely to have a Promus Material Adverse
Effect.
 
    (b) With respect to each item of real property that Promus or any of its
Subsidiaries owns, except for such matters that, individually or in the
aggregate, are not reasonably likely to have a Promus Material Adverse Effect:
(i) Promus or its Subsidiary has good and clear record and marketable title to
such property, insurable by a recognized national title insurance company at
standard rates, free and clear of any security interest, easement, covenant or
other restriction, except for recorded easements, covenants and other
restrictions which do not materially impair the current uses or occupancy of
such property; and (ii) the improvements constructed on such property are in
good condition, and all mechanical and utility systems servicing such
improvements are in good condition, free in each case of material defects.
 
    Section 4.9.  INTELLECTUAL PROPERTY.  Promus owns, or is licensed or
otherwise possesses legally enforceable rights to use, all trademarks, trade
names, service marks, copyrights, and any applications for such trademarks,
trade names, service marks and copyrights, know-how, computer software programs
or applications, and tangible or intangible proprietary information or material
that are necessary to conduct the business of Promus as currently conducted,
subject to such exceptions that, individually and in the aggregate, would not be
reasonably likely to have a Promus Material Adverse Effect. Promus has no
knowledge of any assertion or claim challenging the validity of any of such
intellectual property.
 
    Section 4.10.  AGREEMENTS, CONTRACTS AND COMMITMENTS.
 
    (a) Promus has not breached, or received in writing any claim or notice that
it has breached, any of the terms or conditions of any material agreement,
contract or commitment filed as an exhibit to the Promus SEC Reports ("Promus
Material Contracts") in such a manner as, individually or in the aggregate, are
reasonably likely to have a Promus Material Adverse Effect. Each Promus Material
Contract that has not expired by its terms is in full force and effect.
 
    (b) Without limiting Section 4.10(a), each of the management contracts and
franchise agreements to which Promus is a party and each of Promus's Material
Leases (i) is valid and binding in accordance with its terms and is in full
force and effect, (ii) neither Promus nor any of its Subsidiaries is in default
in any material respect thereof, nor does any condition exist that with notice
or lapses of time or both would constitute a material default thereunder, and
(iii) no party has given any written or (to the knowledge of Promus) oral notice
of termination or cancellation thereof or that such party intends to assert a
breach thereof, or seek to terminate or cancel, any such agreement, contract or
lease, in each case as a result of the transactions contemplated hereby, subject
to such exceptions that, individually and in the aggregate, would not be
reasonably likely to have a Promus Material Adverse Effect.
 
    Section 4.11.  LITIGATION.  Except as described in the Promus SEC Reports
filed prior to the date hereof, there is no action, suit or proceeding, claim,
arbitration or investigation against Promus pending or
 
                                       26
<PAGE>
as to which Promus has received any written notice of assertion, which,
individually or in the aggregate, is reasonably likely to have a Promus Material
Adverse Effect or a material adverse effect on the ability of Promus to
consummate the transactions contemplated by this Agreement.
 
    Section 4.12.  ENVIRONMENTAL MATTERS.  To the knowledge of Promus and except
as disclosed in the Promus SEC Reports filed prior to the date hereof and except
for such matters that, individually or in the aggregate, are not reasonably
likely to have a Promus Material Adverse Effect: (i) Promus and its Subsidiaries
have complied with all applicable Environmental Laws; (ii) the properties
currently owned or operated by Promus and its Subsidiaries (including soils,
groundwater, surface water, buildings or other structures) are not contaminated
with any Hazardous Substances; (iii) the properties formerly owned or operated
by Promus or any of its Subsidiaries were not contaminated with Hazardous
Substances during the period of ownership or operation by Promus or any of its
Subsidiaries; (iv) neither Promus nor its Subsidiaries are subject to liability
for any Hazardous Substance disposal or contamination on any third party
property; (v) neither Promus nor any of its Subsidiaries has been associated
with any release or threat of release of any Hazardous Substance; (vi) neither
Promus nor any of its Subsidiaries has received any notice, demand, letter,
claim or request for information alleging that Promus or any of its Subsidiaries
may be in violation of or liable under any Environmental Law; (vii) neither
Promus nor any of its Subsidiaries is subject to any orders, decrees,
injunctions or other arrangements with any Governmental Entity or is subject to
any indemnity or other agreement with any third party relating to liability
under any Environmental Law or relating to Hazardous Substances; and (viii)
there are no circumstances or conditions involving Promus or any of its
Subsidiaries that could reasonably be expected to result in any claims,
liability, investigations, costs or restrictions on the ownership, use or
transfer of any property of Promus or any of its Subsidiaries pursuant to any
Environmental Law.
 
    Section 4.13.  EMPLOYEE BENEFIT PLANS.
 
    (a) For purposes of this Agreement, the "Promus Employee Plans" shall mean
all employee benefit plans (as defined in Section 3(3) of ERISA) and all bonus,
stock option, stock purchase, incentive, deferred compensation, supplemental
retirement, severance and other similar employee benefit plans, and all
unexpired severance agreements, written or otherwise, for the benefit of, or
relating to, any current or former employee of Promus or any ERISA Affiliate of
Promus, or any Subsidiary of Promus (together, the "Promus Employee Plans").
Promus has listed in Section 4.13 of the Promus Disclosure Schedule all Promus
Employee Plans other than plans that are "employee welfare benefit plans" within
the meaning of Section 3(1) of ERISA.
 
    (b) With respect to each Promus Employee Plan, Promus has made available to
Doubletree, a true and correct copy of (i) the most recent annual report (Form
5500) filed with the IRS, (ii) such Promus Employee Plan and all amendments
thereto, (iii) each trust agreement and group annuity contract, if any, and all
amendments thereto relating to such Promus Employee Plan and (iv) the most
recent actuarial report or valuation relating to a Promus Employee Plan subject
to Title IV of ERISA.
 
    (c) With respect to the Promus Employee Plans, individually and in the
aggregate, no event has occurred, and to the knowledge of Promus, there exists
no condition or set of circumstances in connection with which Promus could be
subject to any liability that is reasonably likely to have a Promus Material
Adverse Effect under ERISA, the Code or any other applicable law.
 
    (d) With respect to the Promus Employee Plans, individually and in the
aggregate, there are no funded benefit obligations for which contributions have
not been made or properly accrued and there are no unfunded benefit obligations
which have not been accounted for by reserves, or otherwise properly footnoted
in accordance with generally accepted accounting principles, on the financial
statements of Promus, except for obligations which, individually or in the
aggregate, are not reasonably likely to have a Promus Material Adverse Effect.
 
                                       27
<PAGE>
    (e) Except as disclosed in the Promus SEC Reports filed prior to the date of
this Agreement, and except as provided for in this Agreement, neither Promus nor
any of its Subsidiaries is a party to any oral or written (i) agreement with any
officer or other key employee of Promus or any of its Subsidiaries, the benefits
of which are contingent, or the terms of which are materially altered, upon the
occurrence of a transaction involving Promus of the nature contemplated by this
Agreement, (ii) agreement with any officer of Promus providing any term of
employment or compensation guarantee extending for a period longer than one year
from the date hereof or for the payment of compensation in excess of $100,000
per annum, or (iii) agreement or plan, including any stock option plan, stock
appreciation right plan, restricted stock plan or stock purchase plan, any of
the benefits of which will be increased, the vesting of the benefits of which
will be accelerated or the funding of benefits of which will be required, by the
occurrence of any of the transactions contemplated by this Agreement or the
value of any of the benefits of which will be calculated on the basis of any of
the transactions contemplated by this Agreement.
 
    Section 4.14.  COMPLIANCE WITH LAWS.  Promus has complied with, is not in
violation of, and has not received any notices of violation with respect to, any
federal, state or local statute, law or regulation with respect to the conduct
of its business, or the ownership or operation of its business, except for
failures to comply or violations which, individually or in the aggregate, have
not had and are not reasonably likely to have a Promus Material Adverse Effect.
 
    Section 4.15.  ACCOUNTING AND TAX MATTERS.
 
    (a) To the best knowledge of Promus, after consulting with its independent
auditors with respect to clause (i) below and its tax advisors with respect to
clause (ii) below, neither Promus nor any of its Affiliates (as defined in
Section 5.12) has taken or agreed to take any action which would (i) prevent
Parent from accounting for the business combination to be effected by the
Mergers as a pooling of interests, or (ii) prevent the Promus Merger from
qualifying as a reorganization described in Section 368(a) of the Code and/or,
taken together with the Doubletree Merger, as a transfer of property to Parent
by holders of Promus Common Stock described in Section 351 of the Code. Except
as contemplated by the Promus Option Agreement, neither Promus nor any of its
Subsidiaries owns any shares of Doubletree Common Stock or other securities
convertible into shares of Doubletree Common Stock (exclusive of any shares
owned by Promus's employee benefit plans).
 
    (b) To the best knowledge of Promus, the stockholders of Promus as a group
have no present plan, intention or arrangement to sell or otherwise dispose of
such number of the shares of Parent Common Stock received in the Promus Merger
as would reduce their ownership in Parent Common Stock to a number of shares
having a value, as of the date of the Promus Merger, of less than eighty percent
(80%) of the value of all the formerly outstanding stock of Promus as of the
same date.
 
    Section 4.16.  REGISTRATION STATEMENT; JOINT PROXY
STATEMENT/PROSPECTUS.  The information to be supplied by Promus for inclusion in
the Registration Statement shall not at the time the Registration Statement is
declared effective by the SEC contain any untrue statement of a material fact or
omit to state any material fact required to be stated in the Registration
Statement or necessary in order to make the statements in the Registration
Statement, in light of the circumstances under which they were made, not
misleading. The information to be supplied by Promus for inclusion in the Joint
Proxy Statement/ Prospectus shall not, on the date the Joint Proxy
Statement/Prospectus is first mailed to stockholders of Promus or Doubletree, at
the time of the Promus Stockholders' Meeting and the Doubletree Stockholder's
Meeting and at the Effective Time, contain any statement which, at such time and
in light of the circumstances under which it shall be made, is false or
misleading with respect to any material fact, omit to state any material fact
necessary in order to make the statements made in the Joint Proxy Statement/
Prospectus not false or misleading, or omit to state any material fact necessary
to correct any statement in any earlier communication with respect to the
solicitation of proxies for the Promus Stockholders' Meeting or the Doubletree
Stockholders' Meeting which has become false or misleading. If at any time prior
to the Effective Time any event relating to Promus or any of its Affiliates,
officers or directors should be
 
                                       28
<PAGE>
discovered by Promus which should be set forth in an amendment to the
Registration Statement or a supplement to the Joint Proxy Statement/Prospectus,
Promus shall promptly inform Doubletree.
 
    Section 4.17.  LABOR MATTERS.  Except as disclosed in the Promus SEC Reports
filed prior to the date hereof, neither Promus nor any of its Subsidiaries is a
party to or otherwise bound by any collective bargaining agreement, contract or
other agreement or understanding with a labor union or labor organization, nor,
as of the date hereof, is Promus or any of its Subsidiaries the subject of any
material proceeding asserting that Promus or any of its Subsidiaries has
committed an unfair labor practice or is seeking to compel it to bargain with
any labor union or labor organization nor, as of the date of this Agreement, is
there pending or, to the knowledge of the executive officers of Promus,
threatened, any material labor strike, dispute, walkout, work stoppage,
slow-down or lockout involving Promus or any of its Subsidiaries.
 
    Section 4.18.  INSURANCE.  All material fire and casualty, general
liability, business interruption, product liability, and sprinkler and water
damage insurance policies maintained by Promus or any of its Subsidiaries are
with reputable insurance carriers, provide full and adequate coverage for all
normal risks incident to the business of Promus and its Subsidiaries and their
respective properties and assets, and are in character and amount at least
equivalent to that carried by persons engaged in similar businesses and subject
to the same or similar perils or hazards, except for any such failures to
maintain insurance policies that, individually or in the aggregate, are not
reasonably likely to have a Promus Material Adverse Effect.
 
    Section 4.19.  PROMUS LONG-RANGE PLANS.  Promus has provided to Doubletree
copies of Promus's long-range plans that are substantially identical to the
long-range plans presented by Promus's management to, and adopted by, the Board
of Directors of Promus on July 23, 1997, and Promus has not adopted any other
long-range plans since such date.
 
    Section 4.20.  OPINION OF FINANCIAL ADVISOR.  The financial advisor of
Promus, BT Wolfensohn, has delivered to Promus an opinion dated the date of this
Agreement to the effect that the Promus Exchange Ratio is fair to holders of
Promus Common Stock from a financial point of view.
 
    Section 4.21.  NO EXISTING DISCUSSIONS.  As of the date hereof, Promus is
not engaged, directly or indirectly, in any discussions or negotiations with any
other party with respect to an Acquisition Proposal.
 
    Section 4.22.  SECTION 203 OF THE DGCL NOT APPLICABLE.  The restrictions
contained in Section 203 of the DGCL applicable to a "business combination" (as
defined in Section DGCL 203) will not apply to the authorization, execution,
delivery or performance of this Agreement or the Stock Option Agreements by
Promus or the consummation of the Promus Merger by Promus. No other "fair
price," "moratorium," "control share acquisition" or other similar anti-takeover
statute or regulation is applicable to Promus or (by reason of Promus's
participation therein) the Promus Merger or the other transactions contemplated
by this Agreement.
 
    Section 4.23.  PROMUS RIGHTS PLAN.  Under the terms of the Promus Rights
Plan, neither the execution of this Agreement or the Doubletree Stock Option
Agreement, nor the transactions contemplated hereby or thereby will cause a
Distribution Date to occur or cause the rights issued pursuant to the Promus
Rights Plan to become exercisable, and all such rights shall become
non-exercisable at the Effective Time.
 
                                   ARTICLE V.
 
                                   COVENANTS
 
    Section 5.1.  CONDUCT OF BUSINESS.  During the period from the date of this
Agreement and continuing until the earlier of the termination of this Agreement
or the Effective Time, Doubletree and Promus each agrees as to itself and its
respective Subsidiaries (except to the extent that the other party shall
otherwise consent in writing) to carry on its business in the usual, regular and
ordinary course in substantially the same manner as previously conducted, to pay
its debts and taxes when due subject to good
 
                                       29
<PAGE>
faith disputes over such debts or taxes, to pay or perform its other obligations
when due, and, to the extent consistent with such business, use all reasonable
efforts consistent with past practices and policies to preserve intact its
present business organization, keep available the services of its present
officers and key employees and preserve its relationships with customers,
suppliers, distributors, and others having business dealings with it. Except as
expressly contemplated by this Agreement or the Stock Option Agreements or as
set forth in Section 5.1 of the Doubletree Disclosure Schedule, during the
period from the date of this Agreement and continuing until the earlier of the
termination of this Agreement or the Effective Time, Doubletree and Promus each
shall not (and shall not permit any of its respective Subsidiaries to), without
the written consent of the other party:
 
        (a) Accelerate, amend or change the period of exercisability of options
    or restricted stock granted under any employee stock plan of such party or
    authorize cash payments in exchange for any options granted under any of
    such plans except as required by the terms of such plans or any related
    agreements (including severance agreements) in effect as of the date of this
    Agreement;
 
        (b) Declare or pay any dividends on or make any other distributions
    (whether in cash, stock or property) in respect of any of its capital stock,
    or split, combine or reclassify any of its capital stock or issue or
    authorize the issuance of any other securities in respect of, in lieu of or
    in substitution for shares of its capital stock, or purchase or otherwise
    acquire, directly or indirectly, any shares of its capital stock except from
    former employees, directors and consultants in accordance with agreements
    providing for the repurchase of shares in connection with any termination of
    service to such party;
 
        (c) Issue, deliver or sell, or authorize or propose the issuance,
    delivery or sale of, any shares of its capital stock or securities
    convertible into shares of its capital stock, or subscriptions, rights,
    warrants or options to acquire, or other agreements or commitments of any
    character obligating it to issue any such shares or other convertible
    securities, other than (i) the grant of options consistent with past
    practices to employees or directors, which options represent in the
    aggregate the right to acquire no more than 25,000 shares (net of
    cancellations) of Doubletree Common Stock or Promus Common Stock, as the
    case may be, (ii) the issuance of shares of Doubletree Common Stock or
    Promus Common Stock, as the case may be, pursuant to the exercise of options
    or warrants outstanding on the date of this Agreement, and (iii) the
    issuance of capital stock under the Doubletree Rights Plan or the Promus
    Rights Plan if required by the respective terms thereof;
 
        (d) Acquire or agree to acquire by merging or consolidating with, or by
    purchasing a substantial equity interest in or substantial portion of the
    assets of, or by any other manner, any business or any corporation,
    partnership or other business organization or division, or otherwise acquire
    or agree to acquire any assets (other than hotel properties, inventory and
    other immaterial assets, in each case in the ordinary course of business);
 
        (e) Sell, lease, license or otherwise dispose of any of its material
    properties or assets, except for transactions (including sales, leases,
    licenses or dispositions of hotel properties, inventory and other immaterial
    assets) in the ordinary course of business;
 
        (f) (i) Increase or agree to increase the compensation payable or to
    become payable to its officers or employees, except for increases in salary
    or wages of employees (other than officers) in accordance with past
    practices, (ii) grant any additional severance or termination pay to, or
    enter into any employment or severance agreements with, any employees or
    officers, (iii) enter into any collective bargaining agreement (other than
    as required by law or extensions to existing agreements in the ordinary
    course of business), (iv) establish, adopt, enter into or amend any bonus,
    profit sharing, thrift, compensation, stock option, restricted stock,
    pension, retirement, deferred compensation, employment, termination,
    severance or other plan, trust, fund, policy or arrangement for the benefit
    of any directors, officers or employees;
 
                                       30
<PAGE>
        (g) Amend or propose to amend its Certificate of Incorporation or Bylaws
    except as contemplated by this Agreement;
 
        (h) Incur any indebtedness for borrowed money other than in the ordinary
    course of business;
 
        (i) Take any action that would or is reasonably likely to result in a
    material breach of any provision of this Agreement or the Stock Option
    Agreements or in any of its representations and warranties set forth in this
    Agreement or the Stock Option Agreements being untrue on and as of the
    Closing Date;
 
        (j) Make or rescind any material express or deemed election relating to
    Taxes, settle or compromise any material claim, action, suit, litigation,
    proceeding, arbitration, investigation, audit or controversy relating to
    Taxes, or make any material change to any of its methods of reporting income
    or deductions for federal income tax purposes from those employed in the
    preparation of its federal income tax return for the taxable year ending
    December 31, 1996, except as may be required by applicable law;
 
        (k) Settle any litigation relating to the transactions contemplated
    hereby other than any settlement which would not (i) have a Doubletree
    Material Adverse Effect (if settled by Doubletree), a Promus Material
    Adverse Effect (if settled by Promus) or a material adverse effect on the
    business, properties, financial condition or results of operations of Parent
    (if settled by either Doubletree or Promus) or (ii) adversely effect the
    consummation of the transactions contemplated hereby; or
 
        (l) Take, or agree in writing or otherwise to take, any of the actions
    described in Sections (a) through (k) above.
 
    Section 5.2.  COOPERATION; NOTICE; CURE.  Subject to compliance with
applicable law, from the date hereof until the Effective Time, each of
Doubletree and Promus shall confer on a regular and frequent basis with one or
more representatives of the other party to report on the general status of
ongoing operations and shall promptly provide the other party or its counsel
with copies of all filings made by such party with any Governmental Entity in
connection with this Agreement, the Mergers and the transactions contemplated
hereby and thereby. Each of Doubletree and Promus shall promptly notify the
other in writing of, and will use all commercially reasonable efforts to cure
before the Closing Date, any event, transaction or circumstance, as soon as
practical after it becomes known to such party, that causes or will cause any
covenant or agreement of Doubletree or Promus under this Agreement to be
breached or that renders or will render untrue any representation or warranty of
Doubletree or Promus contained in this Agreement. No notice given pursuant to
this paragraph shall have any effect on the representations, warranties,
covenants or agreements contained in this Agreement for purposes of determining
satisfaction of any condition contained herein.
 
    Section 5.3.  NO SOLICITATION.
 
    (a) Doubletree and Promus each shall not, directly or indirectly, through
any officer, director, employee, financial advisor, representative or agent of
such party (i) solicit, initiate, or encourage any inquiries or proposals that
constitute, or could reasonably be expected to lead to, a proposal or offer for
a merger, consolidation, business combination, sale of substantial assets, sale
of shares of capital stock (including without limitation by way of a tender
offer) or similar transaction involving such party or any of its Subsidiaries,
other than the transactions contemplated by this Agreement (any of the foregoing
inquiries or proposals being referred to in this Agreement as an "Acquisition
Proposal"), (ii) engage in negotiations or discussions with any person (or group
of persons) other than Doubletree or Promus or their respective affiliates (a
"Third Party") concerning, or provide any non-public information to any person
or entity relating to, any Acquisition Proposal, or (iii) agree to or recommend
any Acquisition Proposal; provided, however, that nothing contained in this
Agreement shall prevent Doubletree or Promus, or their respective Board of
Directors, from (A) furnishing non-public information to, or entering into
discussions or negotiations with, any person or entity in connection with an
unsolicited bona fide
 
                                       31
<PAGE>
written Acquisition Proposal by such person or entity or modifying or
withdrawing its recommendation with respect to the transactions contemplated
hereby or recommending an unsolicited bona fide written Acquisition Proposal to
the stockholders of such party, if and only to the extent that (1) the Board of
Directors of such party believes in good faith (after consultation with its
financial advisor) that such Acquisition Proposal is reasonably capable of being
completed on the terms proposed and, after taking into account the strategic
benefits anticipated to be derived from the Mergers and the prospects of
Doubletree and Promus as a combined company, would, if consummated, result in a
transaction more favorable to the stockholders of such party over the long term
than the transaction contemplated by this Agreement (a "Superior Proposal") and
the Board of Directors of such party determines in good faith after consultation
with outside legal counsel that such action is required for such Board of
Directors to comply with its fiduciary duties to stockholders under applicable
law and (2) prior to furnishing such non-public information to, or entering into
discussions or negotiations with, such person or entity, such Board of Directors
receives from such person or entity an executed confidentiality and standstill
agreement with terms no less favorable to such party than those contained in the
Confidentiality Agreements, each dated August 16, 1997 between Promus and
Doubletree (the "Confidentiality Agreements"); or (B) complying with Rule 14e-2
promulgated under the Exchange Act with regard to an Acquisition Proposal. Each
of Doubletree and Promus agrees not to release any third party from, or waive
any provision of, any standstill agreement to which it is a party or any
confidentiality agreement between it and another person who has made, or who may
reasonably be considered likely to make, an Acquisition Proposal, unless its
Board of Directors determines in good faith after consultation with outside
legal counsel that such action is required for such Board of Directors to comply
with its fiduciary duties to stockholders under applicable law.
 
    (b) Doubletree and Promus shall each notify the other party immediately
after receipt by Doubletree or Promus (or any of their advisors) of any
Acquisition Proposal or any request for nonpublic information in connection with
an Acquisition Proposal or for access to the properties, books or records of
such party by any person or entity that informs such party that it is
considering making, or has made, an Acquisition Proposal. Such notice shall be
made orally and in writing and shall indicate in reasonable detail the identity
of the offeror and the terms and conditions of such proposal, inquiry or
contact. Such party shall continue to keep the other party hereto informed, on a
current basis, of the status of any such discussions or negotiations and the
terms being discussed or negotiated.
 
    Section 5.4.  JOINT PROXY STATEMENT/PROSPECTUS; REGISTRATION STATEMENT.
 
    (a) As promptly as practical after the execution of this Agreement,
Doubletree and Promus shall prepare and file with the SEC the Joint Proxy
Statement/Prospectus and the Registration Statement in which the Joint Proxy
Statement/Prospectus will be included as a prospectus, provided that Doubletree
and Promus may delay the filing of the Registration Statement until approval of
the Joint Proxy Statement/ Prospectus by the SEC. Doubletree and Promus shall
use all reasonable efforts to cause the Registration Statement to become
effective as soon after such filing as practical. The Joint Proxy
Statement/Prospectus shall include the recommendation of the Board of Directors
of Doubletree in favor of adoption of this Agreement and the Doubletree Merger
and the recommendation of the Board of Directors of Promus in favor of adoption
of this Agreement and the Promus Merger; provided that the Board of Directors of
either party may modify or withdraw such recommendation if such Board of
Directors believes in good faith after consultation with outside legal counsel
that the modification or withdrawal of such recommendation is required for such
Board of Directors to comply with its fiduciary duties under applicable law.
 
    (b) Doubletree and Promus shall make all necessary filings with respect to
the Merger under the Securities Act, the Exchange Act, applicable state blue sky
laws and the rules and regulations thereunder.
 
    Section 5.5.  NASDAQ QUOTATION AND NYSE LISTING.  Each of Doubletree and
Promus agrees to continue the quotation and listing of Doubletree Common Stock
and Promus Common Stock, respectively, on NASDAQ National Market and the NYSE,
respectively, during the term of this Agreement.
 
                                       32
<PAGE>
    Section 5.6.  ACCESS TO INFORMATION.  Upon reasonable notice, Doubletree and
Promus shall each (and shall cause each of their respective Subsidiaries to)
afford to the officers, employees, accountants, counsel and other
representatives of the other, access, during normal business hours during the
period prior to the Effective Time, to all its personnel, properties, books,
contracts, commitments and records and, during such period, each of Doubletree
and Promus shall, and shall cause each of their respective Subsidiaries to,
furnish promptly to the other (a) copies of monthly financial reports and
development reports, (b) a copy of each report, schedule, registration statement
and other document filed or received by it during such period pursuant to the
requirements of federal securities laws and (c) all other information concerning
its business, properties and personnel as such other party may reasonably
request. The parties will hold any such information which is nonpublic in
confidence in accordance with the Confidentiality Agreements. No information or
knowledge obtained in any investigation pursuant to this Section 5.6 shall
affect or be deemed to modify any representation or warranty contained in this
Agreement or the conditions to the obligations of the parties to consummate the
Merger.
 
    Section 5.7.  STOCKHOLDERS' MEETINGS.  Doubletree and Promus each shall call
a meeting of its respective stockholders to be held as promptly as practicable
for the purpose of voting, in the case of Doubletree, upon this Agreement and
the Doubletree Merger and, in the case of Promus, upon this Agreement and the
Promus Merger. Subject to Sections 5.3 and 5.4, Doubletree and Promus shall,
through their respective Boards of Directors, recommend to their respective
stockholders adoption of this Agreement and approval of such matters and shall
coordinate and cooperate with respect to the timing of such meetings and shall
use their best efforts to hold such meetings on the same day and as soon as
practicable after the date hereof. Unless otherwise required to comply with the
applicable fiduciary duties of the respective directors of Doubletree and
Promus, as determined by such directors in good faith after consultation with
outside legal counsel, each party shall use all reasonable efforts to solicit
from stockholders of such party proxies in favor of such matters. Doubletree and
Promus intend to submit additional proposals to their respective stockholders at
the Doubletree Stockholders' Meeting and the Promus Stockholders' Meeting,
respectively, separate from the proposals referred to in the first sentence of
this Section 5.7. The approval by Doubletree's stockholders or Promus's
stockholders, as the case may be, of such additional proposals shall not be a
condition to the closing of the Mergers under this Agreement.
 
    Section 5.8.  LEGAL CONDITIONS TO MERGER.
 
    (a) Doubletree and Promus shall each use all reasonable efforts to (i) take,
or cause to be taken, all appropriate action, and do, or cause to be done, all
things necessary and proper under applicable law to consummate and make
effective the transactions contemplated hereby as promptly as practicable, (ii)
obtain from any Governmental Entity or any other third party any consents,
licenses, permits, waivers, approvals, authorizations, or orders required to be
obtained or made by Doubletree or Promus or any of their Subsidiaries in
connection with the authorization, execution and delivery of this Agreement and
the consummation of the transactions contemplated hereby including, without
limitation, the Mergers, and (iii) as promptly as practicable, make all
necessary filings, and thereafter make any other required submissions, with
respect to this Agreement and the Mergers required under (A) the Securities Act
and the Exchange Act, and any other applicable federal or state securities laws,
(B) the HSR Act and any related governmental request thereunder, and (C) any
other applicable law. Doubletree and Promus shall cooperate with each other in
connection with the making of all such filings, including providing copies of
all such documents to the non-filing party and its advisors prior to filing and,
if requested, to accept all reasonable additions, deletions or changes suggested
in connection therewith. Doubletree and Promus shall use their reasonable
efforts to furnish to each other all information required for any application or
other filing to be made pursuant to the rules and regulations of any applicable
law (including all information required to be included in the Joint Proxy
Statement/Prospectus and the Registration Statement) in connection with the
transactions contemplated by this Agreement.
 
    (b) Doubletree and Promus agree, and shall cause each of their respective
Subsidiaries, to cooperate and to use their respective reasonable efforts to
obtain any government clearances required for Closing
 
                                       33
<PAGE>
(including through compliance with the HSR Act and any applicable foreign
government reporting requirements), to respond to any government requests for
information, and to contest and resist any action, including any legislative,
administrative or judicial action, and to have vacated, lifted, reversed or
overturned any decree, judgment, injunction or other order (whether temporary,
preliminary or permanent) (an "Order") that restricts, prevents or prohibits the
consummation of the Mergers or any other transactions contemplated by this
Agreement. The parties hereto will consult and cooperate with one another, and
consider in good faith the views of one another, in connection with any
analyses, appearances, presentations, memoranda, briefs, arguments, opinions and
proposals made or submitted by or on behalf of any party hereto in connection
with proceedings under or relating to the HSR Act or any other federal, state or
foreign antitrust or fair trade law. Doubletree and Promus shall cooperate and
work together in any proceedings or negotiations with any Governmental Entity
relating to any of the foregoing. Notwithstanding anything to the contrary in
this Section 5.8, neither Doubletree nor Promus, nor any of their respective
Subsidiaries, shall be required to take any action that would reasonably be
expected to substantially impair the overall benefits expected, as of the date
hereof, to be realized from the consummation of the Mergers.
 
    (c) Each of Doubletree and Promus shall give (or shall cause their
respective Subsidiaries to give) any notices to third parties, and use, and
cause their respective Subsidiaries to use, all reasonable efforts to obtain any
third party consents related to or required in connection with the Mergers.
 
    Section 5.9.  PUBLIC DISCLOSURE.  Doubletree and Promus shall agree on the
form and content of the initial press release regarding the transactions
contemplated hereby and thereafter shall consult with each other before issuing,
and use all reasonable efforts to agree upon, any press release or other public
statement with respect to any of the transactions contemplated hereby and shall
not issue any such press release or make any such public statement prior to such
consultation, except as may be required by law.
 
    Section 5.10.  NONRECOGNITION EXCHANGE.  From and after the date hereof and
until the Effective Time, neither Doubletree nor Promus, nor any of their
respective Subsidiaries or other Affiliates shall knowingly take any action, or
knowingly fail to take any action, that is reasonably likely to jeopardize the
treatment of either of the Mergers as a reorganization described in Section
368(a) of the Code and/or, taken together with the other of the Mergers, as a
transfer of property to Parent by holders of Doubletree Common Stock or Promus
Common Stock, as applicable, described in Section 351 of the Code.
 
    Section 5.11.  POOLING ACCOUNTING.  From and after the date hereof and until
the Effective Time, neither Doubletree nor Promus, nor any of their respective
Subsidiaries or other Affiliates shall knowingly take any action, or knowingly
fail to take any action, that is reasonably likely to jeopardize the treatment
of the Mergers as a pooling of interests for accounting purposes.
 
    Section 5.12.  AFFILIATE AGREEMENTS.  Upon the execution of this Agreement,
Doubletree and Promus will provide each other with a list of those persons who
are, in Doubletree's or Promus's respective reasonable judgment, "affiliates" of
Doubletree or Promus, respectively, within the meaning of Rule 145 (each such
person who is an "affiliate" of Doubletree or Promus within the meaning of Rule
145 is referred to as an "Affiliate") promulgated under the Securities Act
("Rule 145"). Doubletree and Promus shall provide each other such information
and documents as the other party shall reasonably request for purposes of
reviewing such list and shall notify the other party in writing regarding any
change in the identity of its Affiliates prior to the Closing Date. Doubletree
and Promus shall each use all reasonable efforts to deliver or cause to be
delivered to each other by October 15, 1997 (and in any case prior to the
Effective Time) from each of its Affiliates, an executed Affiliate Agreement, in
substantially the form of Exhibit F (with respect to affiliates of Doubletree)
or Exhibit G (with respect to affiliates of Promus) attached hereto (each, an
"Affiliate Agreement," and together, the "Affiliate Agreements").
 
    Section 5.13.  NYSE LISTING.  Doubletree and Promus shall cause Parent to
promptly prepare and submit to the NYSE a listing application covering the
shares of Parent Common Stock to be issued in the Mergers and upon exercise of
Doubletree Stock Options, the GEPT Warrant and Promus Stock Options,
 
                                       34
<PAGE>
and shall use all reasonable efforts to cause such shares to be approved for
listing on the NYSE, prior to the Effective Time, subject to official notice of
issuance.
 
    Section 5.14.  STOCK PLANS.
 
    (a) At the Effective Time, each outstanding option to purchase shares of
Doubletree Common Stock (an "Doubletree Stock Option") under the Doubletree
Stock Plans and each outstanding option to purchase shares of Promus Common
Stock (a "Promus Stock Option") under the Promus Stock Plans, in each case
whether vested or unvested, shall be deemed to constitute an option to acquire,
on the same terms and conditions as were applicable under such Doubletree Stock
Option or Promus Stock Option, as the case may be, the same number of shares of
Parent Common Stock as the holder of such Doubletree Stock Option or Promus
Stock Option, as the case may be, would have been entitled to receive pursuant
to the Doubletree Merger or the Promus Merger, respectively, had such holder
exercised such option in full immediately prior to the Effective Time (rounded
downward to the nearest whole number), at a price per share (rounded downward to
the nearest whole cent) equal to (y) the aggregate exercise price for the shares
of Doubletree Common Stock or Promus Common Stock, as the case may be,
purchasable pursuant to such Doubletree Stock Option or such Promus Stock Option
immediately prior to the Effective Time divided by (z) the number of full shares
of Parent Common Stock deemed purchasable pursuant to such Doubletree Stock
Option or Promus Stock Option, as the case may be, in accordance with the
foregoing.
 
    (b) As soon as practicable after the Effective Time, Parent shall deliver to
the participants in the Doubletree Stock Plans and the Promus Stock Plans
appropriate notice setting forth such participants' rights pursuant thereto and
the grants pursuant to Doubletree Stock Plans or Promus Stock Plans, as the case
may be, shall continue in effect on the same terms and conditions (subject to
the adjustments required by this Section 5.14 after giving effect to the
Mergers).
 
    (c) Parent shall take all corporate action necessary to reserve for issuance
a sufficient number of shares of Parent Common Stock for delivery under
Doubletree Stock Plans and Promus Stock Plans assumed in accordance with this
Section 5.14. As soon as practicable after the Effective Time, Parent shall file
a registration statement on Form S-8 (or any successor or other appropriate
forms), or another appropriate form with respect to the shares of Parent Common
Stock subject to such options and shall use its reasonable efforts to maintain
the effectiveness of such registration statement or registration statements (and
maintain the current status of the prospectus or prospectuses contained therein)
for so long as such options remain outstanding.
 
    (d) The Board of Directors of each of Doubletree and Promus shall, prior to
or as of the Effective Time, take all necessary actions, pursuant to and in
accordance with the terms of the Doubletree Stock Plans and the instruments
evidencing the Doubletree Stock Options, or the Promus Stock Plans and the
instruments evidencing the Promus Stock Options, as the case may be, to provide
for the conversion of the Doubletree Stock Options and the Promus Stock Options
into options to acquire Parent Common Stock in accordance with this Section 5.14
without obtaining consent of the holders of the Doubletree Stock Options or
Promus Stock Options in connection with such conversion; provided, however, that
Promus shall use all reasonable efforts to obtain from each holder of Promus
Stock Options a waiver of any right of such holder to receive any cash payment
which may become due with respect to any Promus Stock Options that are
exercisable immediately prior to the Effective Time as a result of the
consummation of the transactions contemplated hereby.
 
    (e) The Board of Directors of each of Doubletree and Promus shall, prior to
or as of the Effective Time, take appropriate action to approve the deemed
cancellation of the Doubletree Stock Options or Promus Stock Options, as the
case may be, for purposes of Section 16(b) of the Exchange Act. The Board of
Directors of Parent shall, prior to or as of the Effective Time, take
appropriate action to approve the deemed grant of options to purchase Parent
Common Stock under the Doubletree Stock Options and the Promus Stock Options (as
converted pursuant to this Section 5.14) for purposes of Section 16(b) of the
Exchange Act.
 
                                       35
<PAGE>
    Section 5.15.  BROKERS OR FINDERS.  Each of Doubletree and Promus
represents, as to itself, its Subsidiaries and its Affiliates, that no agent,
broker, investment banker, financial advisor or other firm or person is or will
be entitled to any broker's or finder's fee or any other commission or similar
fee in connection with any of the transactions contemplated by this Agreement
except Morgan Stanley & Co. Incorporated, whose fees and expenses will be paid
by Doubletree in accordance with Doubletree's agreement with such firm (a copy
of which has been delivered by Doubletree to Promus prior to the date of this
Agreement), and BT Wolfensohn, whose fees and expenses will be paid by Promus in
accordance with Promus's agreement with such firm (a copy of which has been
delivered by Promus prior to the date of this Agreement). Each of Promus and
Doubletree agrees to indemnify and hold the other harmless from and against any
and all claims, liabilities or obligations with respect to any such fees,
commissions or expenses asserted by any person on the basis of any act or
statement alleged to have been made by such party or any of its Affiliates.
 
    Section 5.16.  INDEMNIFICATION.
 
    (a) From and after the Effective Time, Parent agrees that it will, and will
cause the Surviving Corporations to, indemnify and hold harmless each present
and former director and officer of Doubletree and Promus (the "Indemnified
Parties"), against any costs or expenses (including attorneys' fees), judgments,
fines, losses, claims, damages, liabilities or amounts paid in settlement
incurred in connection with any claim, action, suit, proceeding or
investigation, whether civil, criminal, administrative or investigative, arising
out of or pertaining to matters existing or occurring at or prior to the
Effective Time, whether asserted or claimed prior to, at or after the Effective
Time, to the fullest extent that Doubletree or Promus, as the case may be, would
have been permitted under Delaware law and its certificate of incorporation or
bylaws in effect on the date hereof to indemnify such Indemnified Party (and
Parent and the Surviving Corporation shall also advance expenses as incurred to
the fullest extent permitted under applicable law, provided the Indemnified
Party to whom expenses are advanced provides an undertaking to repay such
advances if it is ultimately determined that such Indemnified Party is not
entitled to indemnification).
 
    (b) For a period of six years after the Effective Time, Parent shall
maintain or shall cause the Surviving Corporations to maintain (to the extent
available in the market) in effect a directors' and officers' liability
insurance policy covering those persons who are currently covered by
Doubletree's or Promus's directors' and officers' liability insurance policy
(copies of which have been heretofore delivered by Doubletree and Promus to each
other) with coverage in amount and scope at least as favorable as Doubletree's
or Promus's existing coverage; provided that in no event shall Parent or the
Surviving Corporations be required to expend in the aggregate in excess of 200%
of the annual premium currently paid by Doubletree and Promus for such coverage;
and if such premium would at any time exceed 200% of the such amount, then the
Parent or the Surviving Corporations shall maintain insurance policies which
provide the maximum and best coverage available at an annual premium equal to
200% of such amount.
 
    (c) The provisions of this Section 5.16 are intended to be an addition to
the rights otherwise available to the current officers and directors of
Doubletree and Promus by law, charter, statute, bylaw or agreement, and shall
operate for the benefit of, and shall be enforceable by, each of the Indemnified
Parties, their heirs and their representatives.
 
    Section 5.17.  LETTER OF PROMUS'S ACCOUNTANTS.  Promus shall use all
reasonable efforts to cause to be delivered to Doubletree and Promus a letter of
Arthur Andersen LLP, Promus's independent auditors, dated a date within two
business days before the date on which the Registration Statement shall become
effective and addressed to Doubletree, in form reasonably satisfactory to
Doubletree and customary in scope and substance for letters delivered by
independent public accountants in connection with registration statements
similar to the Registration Statement.
 
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<PAGE>
    Section 5.18.  LETTER OF DOUBLETREE'S ACCOUNTANTS.  Doubletree shall use all
reasonable efforts to cause to be delivered to Promus and Doubletree a letter of
KPMG Peat Marwick LLP, Doubletree's independent auditors, dated a date within
two business days before the date on which the Registration Statement shall
become effective and addressed to Promus, in form reasonably satisfactory to
Promus and customary in scope and substance for letters delivered by independent
public accountants in connection with registration statements similar to the
Registration Statement.
 
    Section 5.19.  STOCK OPTION AGREEMENTS.  Promus and Doubletree each agree to
fully perform their respective obligations under the Stock Option Agreements.
 
    Section 5.20.  POST-MERGER CORPORATE GOVERNANCE; EMPLOYMENT ARRANGEMENTS.
 
    (a) At the Effective Time, the total number of persons serving on the Board
of Directors of Parent shall be fourteen (unless otherwise agreed in writing by
Doubletree and Promus prior to the Effective Time), half of whom shall be
Doubletree Directors and half of whom shall be Promus Directors (as such terms
are defined below), all of which Doubletree Directors and Promus Directors shall
be spread as evenly as possible among Parent's three classes of Directors. The
persons to serve initially on the Board of Directors of Parent at the Effective
Time who are Doubletree Directors shall be selected solely by and at the
absolute discretion of the Board of Directors of Doubletree prior to the
Effective Time; and the persons to serve initially on the Board of Directors of
Parent at the Effective Time who are Promus Directors shall be selected solely
by and at the absolute discretion of the Board of Directors of Promus prior to
the Effective Time. In the event that, prior to the Effective Time, any person
so selected to serve on the Board of Directors of Parent after the Effective
Time is unable or unwilling to serve in such position, the Board of Directors
which selected such person shall designate another of its members to serve in
such person's stead in accordance with the provisions of the immediately
preceding sentence. From and after the Effective Time and until December 31,
2002, (a) the Board of Directors of Parent and each Committee of the Board of
Directors of Parent as constituted following each election of Directors shall
consist of an equal number of Doubletree Directors and Promus Directors, and (b)
the size of the Board of Directors of Parent and each Committee of the Board of
Directors of Parent shall not be increased unless such increase is approved by
75% of the members thereof. It is the intention of the parties hereto that Mr.
Dale Frey shall be designated as the initial Chairman of the Human Resources
Committee of Parent immediately following the Effective Time. If, at any time
during the period referenced in the second preceding sentence, the number of
Doubletree Directors and Promus Directors serving, or that would be serving
following the next stockholders' meeting at which Directors are to be elected,
as Directors of Parent or as members of any Committee of the Board of Directors
of Parent, would not be equal, then, subject to the fiduciary duties of the
Directors of Parent, the Board of Directors and the Nominating Committee thereof
shall nominate for election at the next stockholders' meeting at which Directors
are to be elected, such person or persons as may be requested by the remaining
Doubletree Directors (if the number of Doubletree Directors is, or would
otherwise become, less than the number of Promus Directors) or by the remaining
Promus Directors (if the number of Promus Directors is, or would otherwise
become, less than the number of Doubletree Directors) to ensure that there shall
be an equal number of Doubletree Directors and Promus Directors. The provisions
of the preceding sentence shall not apply in respect of any stockholders'
meeting which takes place after December 31, 2002. The term "Doubletree
Director" means (i) any person serving as a Director of Doubletree or any of its
Subsidiaries on the date hereof who becomes a Director of Parent at the
Effective Time and (ii) any person who becomes a Director of Parent pursuant to
the second preceding sentence and who is designated by the Doubletree Directors;
and the term "Promus Director" means (i) any person serving as a Director of
Promus or any of its Subsidiaries on the date hereof who becomes a Director of
Parent at the Effective Time and (ii) any person who becomes a Director of
Parent pursuant to the second preceding sentence and who is designated by the
Promus Directors.
 
    (b) At the Effective Time, pursuant to the terms of the employment contracts
referred to in Section 5.20(c) hereof, (i) Raymond E. Schultz, the current Chief
Executive Officer of Promus, shall hold
 
                                       37
<PAGE>
the position of Chief Executive Officer and Chairman of the Board of Parent,
(ii) Richard M. Kelleher, the current President and Chief Executive Officer of
Doubletree, shall hold the position of President and Chief Operating Officer of
Parent, (iii) William L. Perocchi, the current Executive Vice President and
Chief Financial Officer of Doubletree, shall hold the position of Executive Vice
President and Chief Financial Officer of Parent and (iv) Thomas L. Keltner, the
current Executive Vice President, Development of Promus, shall hold the position
of Executive Vice President, Development of Parent. Mr. Schultz will continue as
Chairman of the Board and Chief Executive Officer of Parent until his retirement
no later than December 31, 1999, and, pursuant to the terms of the employment
contracts referred to in Section 5.20(c) hereof and subject to the Bylaws of
Parent, Mr. Kelleher will succeed Mr. Schultz as Chairman of the Board and Chief
Executive Officer of Parent. If any of the persons identified above in this
Section 5.20(b) is unable or unwilling to hold such offices as set forth above,
his successor shall be selected by the Board of Directors of Parent in
accordance with the Bylaws of Parent. The authority, duties and responsibilities
of the Chairman and Chief Executive Officer, the President and Chief Operating
Officer, the Executive Vice President and Chief Financial Officer and the
Executive Vice President, Development shall be set forth in the employment
contracts entered into pursuant to Section 5.20(c) hereof, which employment
contracts shall also set forth in their entirety the rights and remedies of
Messrs. Schultz, Kelleher, Perocchi and Keltner with respect to employment by
Parent , and none of them shall have any right, remedy or cause of action under
this Section 5.20, nor shall they be third party beneficiaries of this Section
5.20.
 
    (c) Prior to the Closing, Parent shall offer to enter into employment
agreements with Raymond E. Schultz, Richard M. Kelleher, William L. Perocchi and
Thomas L. Keltner on substantially the terms previously agreed to by Doubletree
and Promus.
 
    (d) At the Effective Time, Parent shall have an Executive Committee which
initially will be comprised of the following four members of the Board of
Directors of Parent: Richard J. Ferris, Michael D. Rose, Raymond E. Schultz and
Peter V. Ueberroth. In addition, Richard M. Kelleher shall be an ex-officio
member of the Executive Committee with the right to attend but not vote at all
meetings of the Executive Committee. The Executive Committee shall have
responsibility for developing Parent's long-term strategic plans, making
significant capital allocation decisions and such other duties and
responsibilities as specified by the Board of Directors of Parent at or after
the Effective Time. The Executive Committee also shall be required to oversee
the implementation of Promus's existing 100% guest satisfaction guarantee
program at all of Promus's and Doubletree's hotel properties following the
Effective Time. Each member of the Executive Committee that is not an employee
of Parent will be entitled to receive $300,000 per year as compensation for
serving on the Executive Committee.
 
    (e) Each of Doubletree and Promus shall cause Parent to incorporate the
provisions contained in this Section 5.20 into the Bylaws of Parent in effect at
the Effective Time, which provisions shall thereafter be amended only with the
approval of 75% of the members of the Board of Directors of Parent.
 
    Section 5.21.  NAME OF PARENT.  At the Effective Time, Parent shall change
its corporate name to Promus Hotel Corporation.
 
    Section 5.22.  PARENT STOCKHOLDER RIGHTS PLAN.  Prior to the Effective Time,
Doubletree and Promus shall cause Parent to adopt a Stockholder Rights Plan (the
"Parent Rights Plan") that is substantially similar to the Promus Rights Plan,
with such modifications as are acceptable to both Doubletree and Promus.
 
                                       38
<PAGE>
    Section 5.23.  GEPT WARRANT; DOUBLETREE REGISTRATION RIGHTS AGREEMENT
 
    (a) At the Effective Time, Parent shall assume all obligations under the
GEPT Warrant, and the holder of the GEPT Warrant thereafter shall have the right
to acquire, on the same pricing and payment terms and conditions as are
currently applicable under the GEPT Warrant, the same number of shares of Parent
Common Stock as the holder of the GEPT Warrant would have been entitled to
receive pursuant to the Doubletree Merger had such holder exercised the GEPT
Warrant in full immediately prior to the Effective Time (rounded downward to the
nearest whole number), at the price per share (rounded downward to the nearest
whole cent) equal to (y) the aggregate exercise price for the shares of
Doubletree Common Stock purchasable pursuant to the GEPT Warrant immediately
prior to the Effective Time divided by (z) the number of full shares of Parent
Common Stock deemed purchasable pursuant to the GEPT Warrant in accordance with
the foregoing.
 
    (b) At the Effective Time, Doubletree and Promus shall cause Parent to enter
into a Registration Rights Agreement (the "Parent Registration Rights
Agreement") substantially similar to the Incorporation and Registration Rights
Agreement dated as of December 16, 1993, as amended on June 30, 1994, February
27, 1996 and November 8, 1996 by and among Doubletree and certain stockholders
of Doubletree (the "Doubletree Registration Rights Agreement") pursuant to which
Parent will provide registration rights to parties to the Doubletree
Registration Rights Agreement (other than Doubletree) with respect to all shares
of Parent Common Stock issued in the Doubletree Merger on account of the shares
of Doubletree Common Stock covered by the Doubletree Registration Rights
Agreement.
 
    Section 5.24.  CONVEYANCE TAXES.  Doubletree and Promus shall cooperate in
the preparation, execution and filing of all returns, questionnaires,
applications or other documents regarding any real property transfer or gains,
sales, use, transfer, value added, stock transfer and stamp taxes, any transfer,
recording, registration and other fees or any similar taxes which become payable
in connection with the transactions contemplated by this Agreement that are
required or permitted to be filed on or before the Effective Time.
 
    Section 5.25.  TRANSFER TAXES.  Doubletree shall pay, and Promus shall pay,
on behalf of the stockholders of Doubletree and Promus, respectively, any New
York State Real Estate Transfer Tax, New York City Real Property Transfer Tax,
New York State Stock Transfer Tax and any similar taxes imposed on the
stockholders of Doubletree and Promus, respectively, by any other State of the
United States (and any interest with respect to such taxes) (the "Transfer
Taxes"), which become payable in connection with the transactions contemplated
by this Agreement. Doubletree and Promus shall cooperate in the preparation,
execution and filing of any required returns with respect to such Transfer Taxes
(including returns on behalf of the stockholders of Doubletree and Promus) and
in the determination of the portion of the consideration allocable to the real
property of Doubletree and the Doubletree Subsidiaries and Promus and the Promus
Subsidiaries in New York State and City (or in any other jurisdiction, if
applicable). The Joint Proxy Statement/Prospectus shall provide that the
stockholders of Doubletree and Promus shall be deemed to have (i) authorized
Doubletree and Promus, respectively, to prepare, execute and file any tax
returns relating to Transfer Taxes and pay any Transfer Taxes arising in
connection with the Mergers, in each case, on behalf of such holders and (ii)
agreed to be bound by the values and allocations established by Doubletree and
Promus in the preparation of any return with respect to the Transfer Taxes, if
applicable.
 
    Section 5.26.  STOCKHOLDER LITIGATION.  Each of Doubletree and Promus shall
give the other the reasonable opportunity to participate in the defense of any
stockholder litigation against Doubletree or Promus, as applicable, and its
directors relating to the transactions contemplated hereby.
 
                                       39
<PAGE>
    Section 5.27.  EMPLOYEE BENEFITS; SEVERANCE.
 
    (a) Parent shall cause to continue to be maintained the Doubletree and
Promus annual bonus plans for management employees for the 1997 fiscal year and
shall calculate the amounts payable to participants thereunder on a basis
consistent with the terms of each such plan and the past practice of Doubletree
or Promus, as applicable.
 
    (b) For purposes of determining eligibility to participate, vesting,
entitlement to benefits and in all other respects where length of service is
relevant (except for pension benefit accruals) under any employee benefit plan
or arrangement covering employees of Doubletree and its Subsidiaries
("Doubletree Employees") employees of Promus and its Subsidiaries ("Promus
Employees") following the Effective Time, Parent shall cause such plans or
arrangements to recognize service credit for service with Doubletree or Promus
(as applicable) and any of their respective Subsidiaries to the same extent such
service was recognized under the applicable employee benefit plans immediately
prior to the Effective Time.
 
    (c) At the Effective Time, Parent shall assume and honor in accordance with
their terms the severance agreements and severance pay policies identified in
Section 5.27 of the Doubletree Disclosure Schedule and Section 5.27 of the
Promus Disclosure Schedule.
 
    (d) Promus and Doubletree agree that each may enter into retention and
transition bonus arrangements with its employees prior to the Effective Time,
with the terms and amounts of such payments to be determined jointly by the
Chief Executive Officers of Promus and Doubletree; provided, however, that in no
event shall the aggregate of all such payments exceed approximately $2.5
million.
 
    (e) Promus agrees to use all reasonable efforts, including obtaining any
necessary employee consents, to prevent the automatic funding of any escrow,
trust or similar arrangement pursuant to any employment agreement, arrangement
or benefit plan that arises in connection with the execution of this Agreement
or the consummation of any of the transactions contemplated hereby.
 
                                  ARTICLE VI.
 
                              CONDITIONS TO MERGER
 
    Section 6.1.  CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE
MERGERS.  The respective obligations of each party to this Agreement to effect
the Mergers shall be subject to the satisfaction or waiver by each party prior
to the Effective Time of the following conditions:
 
        (a)  STOCKHOLDER APPROVAL.  This Agreement, the Doubletree Merger and
    the Promus Merger shall have been approved in the manner required under the
    DGCL by the respective holders of the issued and outstanding shares of
    capital stock of Doubletree and Promus.
 
        (b)  HSR ACT.  The waiting period applicable to the consummation of the
    Mergers under the HSR Act shall have expired or been terminated.
 
        (c)  APPROVALS.  Other than the filing provided for by Section 1.4, all
    authorizations, consents, orders or approvals of, or declarations or filings
    with, or expirations of waiting periods imposed by, any Governmental Entity
    the failure of which to file, obtain or occur is reasonably likely to have a
    Doubletree Material Adverse Effect or a Promus Material Adverse Effect shall
    have been filed, been obtained or occurred.
 
        (d)  REGISTRATION STATEMENT.  The Registration Statement shall have
    become effective under the Securities Act and shall not be the subject of
    any stop order or proceedings seeking a stop order.
 
        (e)  NO INJUNCTIONS.  No Governmental Entity shall have enacted, issued,
    promulgated, enforced or entered any order, executive order, stay, decree,
    judgment or injunction or statute, rule,
 
                                       40
<PAGE>
    regulation which is in effect and which has the effect of making the Mergers
    illegal or otherwise prohibiting consummation of the Mergers.
 
        (f)  POOLING LETTERS.  Doubletree and Promus shall have received letters
    from KPMG Peat Marwick LLP and Arthur Andersen LLP, respectively, addressed
    to Doubletree and Promus, respectively, regarding their concurrence with the
    respective conclusions of management of Doubletree and Promus, as to the
    appropriateness of the pooling of interests accounting, under Accounting
    Principles Board Opinion No. 16 for the transactions contemplated hereby, it
    being agreed that Doubletree and Promus shall each provide reasonable
    cooperation to KPMG Peat Marwick LLP and Arthur Andersen LLP to enable them
    to issue such letters.
 
        (g)  NYSE LISTING.  The shares of Parent Common Stock to be issued in
    the Merger and upon exercise of Doubletree Options, the GEPT Warrant and
    Promus Options shall have been approved for listing on the NYSE, subject to
    official notice of issuance.
 
        (h)  CORPORATE GOVERNANCE.  Doubletree and Promus shall have taken all
    actions necessary so that (i) not later than the Effective Time, the
    Certificate of Incorporation and Bylaws of Parent shall have been amended to
    be substantially in the form of Exhibit D and Exhibit E hereto; (ii) at the
    Effective Time, the composition of the Board of Directors of Parent and of
    each Committee of the Board of Directors of Parent shall comply with Section
    5.20 hereof (assuming Doubletree has designated the Doubletree Directors and
    Promus has designated the Promus Directors, in each case as contemplated by
    Section 5.20(a) hereof); and (iii) not later than the Effective Time, Parent
    shall have adopted the Parent Rights Plan.
 
    Section 6.2.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF DOUBLETREE.  The
obligation of Doubletree to effect the Doubletree Merger is subject to the
satisfaction of each of the following conditions prior to the Effective Time,
any of which may be waived in writing exclusively by Doubletree:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Promus set forth in this Agreement shall be true and correct as of the
    date of this Agreement and (except to the extent such representations speak
    as of an earlier date) as of the Closing Date as though made on and as of
    the Closing Date, except for, (i) changes contemplated by this Agreement and
    (ii) inaccuracies which, individually or in the aggregate, have not had and
    are not reasonably likely to have a Promus Material Adverse Effect or a
    material adverse effect upon the consummation of the transactions
    contemplated hereby; and Doubletree shall have received a certificate signed
    on behalf of Promus by the chief executive officer and the chief financial
    officer of Promus to such effect.
 
        (b)  PERFORMANCE OF OBLIGATIONS OF PROMUS.  Promus shall have performed
    in all material respects all obligations required to be performed by it
    under this Agreement at or prior to the Closing Date, and Doubletree shall
    have received a certificate signed on behalf of Promus by the chief
    executive officer and the chief financial officer of Promus to such effect.
 
        (c)  TAX OPINION.  Doubletree shall have received the opinion of Dewey
    Ballantine, counsel to Doubletree, based upon reasonably requested
    representation letters and dated the Closing Date, to the effect that the
    Doubletree Merger will be treated as a reorganization described in Section
    368(a) of the Code and/or, taken together with the Promus Merger, as a
    transfer of property to Parent by holders of Doubletree Common Stock
    described in Section 351 of the Code.
 
        (d)  NO TRIGGER OF PROMUS RIGHTS PLAN.  No event shall have occurred
    that has or would result in the triggering of any right or entitlement of
    stockholders of Promus under the Promus Rights Plan, or will occur as a
    result of the consummation of the Mergers.
 
                                       41
<PAGE>
    Section 6.3.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF PROMUS.  The
obligations of Promus to effect the Promus Merger are subject to the
satisfaction of each of the following conditions prior to the Effective Time,
any of which may be waived in writing exclusively by Promus:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Doubletree set forth in this Agreement shall be true and correct as of
    the date of this Agreement and (except to the extent such representations
    and warranties speak as of an earlier date) as of the Closing Date as though
    made on and as of the Closing Date, except for, (i) changes contemplated by
    this Agreement and (ii) inaccuracies which, individually or in the
    aggregate, have not had and are not reasonably likely to have a Doubletree
    Material Adverse Effect, or a material adverse effect upon the consummation
    of the transactions contemplated hereby; and Promus shall have received a
    certificate signed on behalf of Doubletree by the chief executive officer
    and the chief financial officer of Doubletree to such effect.
 
        (b)  PERFORMANCE OF OBLIGATIONS OF DOUBLETREE.  Doubletree shall have
    performed in all material respects all obligations required to be performed
    by it under this Agreement at or prior to the Closing Date; and Promus shall
    have received a certificate signed on behalf of Doubletree by the chief
    executive officer and the chief financial officer of Doubletree to such
    effect.
 
        (c)  TAX OPINION.  Promus shall have received the opinion of Latham &
    Watkins, counsel to Promus, based upon reasonably requested representation
    letters and dated the Closing Date, to the effect that the Promus Merger
    will be treated as a reorganization described in Section 368(a) of the Code
    and/or, taken together with the Doubletree Merger, as a transfer of property
    to Parent by holders of Promus Common Stock described in Section 351 of the
    Code.
 
        (d)  NO TRIGGER OF DOUBLETREE RIGHTS PLAN.  No event shall have occurred
    that has or would result in the triggering of any right or entitlement of
    stockholders of Doubletree under the Doubletree Rights Plan, or will occur
    as a result of the consummation of the Mergers.
 
                                  ARTICLE VII.
 
                           TERMINATION AND AMENDMENT
 
    Section 7.1.  TERMINATION.  This Agreement may be terminated at any time
prior to the Effective Time (with respect to Sections 7.1(b) through 7.1(h), by
written notice by the terminating party to the other party), whether before or
after approval of the matters presented in connection with the Mergers by the
stockholders of Doubletree or Promus:
 
        (a) by mutual written consent of Doubletree and Promus; or
 
        (b) by either Doubletree or Promus if the Mergers shall not have been
    consummated by January 31, 1998 (provided that (i) either Doubletree or
    Promus may extend such date to March 31, 1998 by providing written notice
    thereof to the other party on or prior to January 31, 1998 (January 31,
    1998, as it may be so extended, shall be referred to herein as the "Outside
    Date") and (ii) the right to terminate this Agreement under this Section
    7.1(b) shall not be available to any party whose failure to fulfill any
    obligation under this Agreement has been the cause of or resulted in the
    failure of the Mergers to occur on or before such date); or
 
        (c) by either Doubletree or Promus if a court of competent jurisdiction
    or other Governmental Entity shall have issued a nonappealable final order,
    decree or ruling or taken any other nonappealable final action, in each case
    having the effect of permanently restraining, enjoining or otherwise
    prohibiting the Mergers; or
 
        (d) (i) by Doubletree or Promus, if, at the Promus Stockholders' Meeting
    (including any adjournment or postponement), the requisite vote of the
    stockholders of Promus in favor of the approval and adoption of this
    Agreement and the Promus Merger shall not have been obtained; or
 
                                       42
<PAGE>
    (ii) by Promus or Doubletree if, at the Doubletree Stockholders' Meeting
    (including any adjournment or postponement), the requisite vote of the
    stockholders of Doubletree in favor of the approval and adoption of this
    Agreement and the Doubletree Merger shall not have been obtained; or
 
        (e) by Doubletree, if (i) the Board of Directors of Promus shall have
    withdrawn or modified its recommendation of this Agreement or the Promus
    Merger (provided that Doubletree's right to terminate this Agreement under
    such clause (i) shall not be available if at such time Promus would be
    entitled to terminate this Agreement under Section 7.1(h) without giving
    effect to the cure period); (ii) after the receipt by Promus of an
    Acquisition Proposal, Doubletree requests in writing that the Board of
    Directors of Promus reconfirm its recommendation of this Agreement and the
    Promus Merger to the stockholders of Promus and the Board of Directors of
    Promus fails to do so within 10 business days after its receipt of
    Doubletree's request; (iii) the Board of Directors of Promus shall have
    recommended to the stockholders of Promus an Alternative Transaction (as
    defined in Section 7.3(e)); (iv) a tender offer or exchange offer for 20% or
    more of the outstanding shares of Promus Common Stock is commenced (other
    than by Doubletree or an Affiliate of Doubletree) and the Board of Directors
    of Promus recommends that the stockholders of Promus tender their shares in
    such tender or exchange offer; or (v) for any reason Promus fails to call
    and hold the Promus Stockholders' Meeting by the Outside Date (provided that
    Doubletree's right to terminate this Agreement under such clause (v) shall
    not be available if at such time Promus would be entitled to terminate this
    Agreement under Section 7.1(h) without giving effect to the cure period); or
 
        (f) by Promus, if (i) the Board of Directors of Doubletree shall have
    withdrawn or modified its recommendation of this Agreement or the Doubletree
    Merger (provided that Promus's right to terminate this Agreement under such
    clause (i) shall not be available if at such time Doubletree would be
    entitled to terminate this Agreement under Section 7.1(h) without giving
    effect to the cure period); (ii) after the receipt by Doubletree of an
    Acquisition Proposal, Promus requests in writing that the Board of Directors
    of Doubletree reconfirm its recommendation of this Agreement and the
    Doubletree Merger to the stockholders of Promus and the Board of Directors
    of Doubletree fails to do so within 10 business days after its receipt of
    Promus's request; (iii) the Board of Directors of Doubletree shall have
    recommended to the stockholders of Doubletree an Alternative Transaction (as
    defined in Section 7.3(e)); (iv) a tender offer or exchange offer for 20% or
    more of the outstanding shares of Doubletree Common Stock is commenced
    (other than by Promus or an Affiliate of Promus) and the Board of Directors
    of Doubletree recommends that the stockholders of Doubletree tender their
    shares in such tender or exchange offer; or (v) for any reason Doubletree
    fails to call and hold the Doubletree Stockholders' Meeting by the Outside
    Date (provided that Promus's right to terminate this Agreement under such
    clause (v) shall not be available if at such time Doubletree would be
    entitled to terminate this Agreement under Section 7.1(h) without giving
    effect to the cure period); or
 
        (g) by Doubletree or Promus, prior to the approval of this Agreement by
    the stockholders of such party, if, as a result of a Superior Proposal
    received by such party from a Third Party, the Board of Directors of such
    party determines in good faith after consultation with outside legal counsel
    that accepting such Superior Proposal is required for such Board of
    Directors to comply with its fiduciary duties to stockholders under
    applicable law; provided, however, that no termination shall be effective
    pursuant to this Section 7.1(g) under circumstances in which a termination
    fee is payable by the terminating party pursuant to Section 7.3(b)(iii) or
    (c)(iii), unless concurrently with such termination, such termination fee is
    paid in full by the terminating party in accordance with Section 7.3(b)(iii)
    or (c)(iii), as applicable; or
 
        (h) by Doubletree or Promus, if (A) there has been a breach of any
    representation, warranty, covenant or agreement on the part of the other
    party set forth in this Agreement, which breach (i) will cause the
    conditions set forth in Section 6.2(a) or (b) (in the case of termination by
    Doubletree) or 6.3(a) or (b) (in the case of termination by Promus) not to
    be satisfied, and (ii) shall not have been cured within 20 business days
    following receipt by the breaching party of written notice of such breach
 
                                       43
<PAGE>
    from the other party; or (B) any event shall have occurred which makes it
    impossible for the conditions set forth in Article VI hereof (other than
    Section 6.1(a), 6.1(e), 6.2(d) and 6.3(d)) to be satisfied, provided that
    any termination pursuant to this clause (B) shall not be effective until 20
    business days after notice thereof is delivered by the party seeking to
    terminate to the other party, and shall be automatically rescinded if (1)
    such condition is solely for the benefit of the party receiving such notice
    and (2) such party, prior to such 20th business day, irrevocably waives
    satisfaction of such condition based on such event.
 
        Section 7.2.  EFFECT OF TERMINATION.  In the event of termination of
    this Agreement as provided in Section 7.1, this Agreement shall immediately
    become void and there shall be no liability or obligation on the part of
    Doubletree, Promus, Parent or their respective officers, directors,
    stockholders or Affiliates, except as set forth in Sections 5.15 and 7.3 and
    except that such termination shall not limit liability for a willful breach
    of this Agreement; provided that, the provisions of Sections 5.15 and 7.3 of
    this Agreement, the Stock Option Agreements and the Confidentiality
    Agreements shall remain in full force and effect and survive any termination
    of this Agreement.
 
        Section 7.3.  FEES AND EXPENSES.
 
        (a) Except as set forth in this Section 7.3, all fees and expenses
    incurred in connection with this Agreement and the transactions contemplated
    hereby shall be paid by the party incurring such expenses, whether or not
    the Mergers are consummated.
 
        (b) Doubletree shall pay Promus a termination fee of $45 million upon
    the earliest to occur of the following events:
 
            (i) the termination of this Agreement by either Promus or Doubletree
       pursuant to Section 7.1(d)(ii), if a proposal for an Alternative
       Transaction (as defined below) involving Doubletree shall have been
       publicly announced prior to the Doubletree Stockholders' Meeting and
       either a definitive agreement for an Alternative Transaction is entered
       into, or an Alternative Transaction is consummated, within eighteen
       months of such termination;
 
            (ii) the termination of this Agreement by Promus pursuant to Section
       7.1(f); or
 
           (iii) the termination of this Agreement by Doubletree pursuant to
       Section 7.1(g).
 
        Doubletree's payment of a termination fee pursuant to this subsection
    shall be the sole and exclusive remedy of Promus against Doubletree and any
    of its Subsidiaries and their respective directors, officers, employees,
    agents, advisors or other representatives with respect to the occurrences
    giving rise to such payment; provided that this limitation shall not apply
    in the event of a willful breach of this Agreement by Doubletree.
    Notwithstanding the foregoing, if and to the extent that Promus has
    purchased shares of Doubletree Common Stock pursuant to the Promus Stock
    Option Agreement prior to the payment of the $45 million fee provided for
    herein (the "Fee Payment Date"), the amount payable to Promus under this
    Section 7.3(b), together with (i)(x) the net cash amount received by Promus
    prior to the Fee Payment Date pursuant to Doubletree's repurchase of Shares
    (as defined in the Promus Stock Option Agreement) pursuant to Section 7 of
    the Promus Stock Option Agreement, less (y) Promus's purchase price for such
    Shares, and (ii)(x) the amounts received by Promus prior to the Fee Payment
    Date pursuant to the sale of Shares (or any other securities into which such
    Shares are converted or exchanged), less (y) Promus's purchase price for
    such Shares, shall not exceed $65 million.
 
        (c) Promus shall pay Doubletree a termination fee of $45 million upon
    the earliest to occur of the following events:
 
            (i) the termination of this Agreement by either Doubletree or Promus
       pursuant to Section 7.1(d)(i), if a proposal for an Alternative
       Transaction (as defined below) involving Promus shall have been publicly
       announced prior to the Promus Stockholders' Meeting and either an
 
                                       44
<PAGE>
       Alternative Transaction is entered into, or an Alternative Transaction is
       consummated, within eighteen months of such termination;
 
            (ii) the termination of this Agreement by Doubletree pursuant to
       Section 7.1(e); or
 
           (iii) the termination of this Agreement by Promus pursuant to Section
       7.1 (g).
 
        Promus's payment of a termination fee pursuant to this subsection shall
    be the sole and exclusive remedy of Doubletree against Promus and any of its
    Subsidiaries and their respective directors, officers, employees, agents,
    advisors or other representatives with respect to the occurrences giving
    rise to such payment; provided that this limitation shall not apply in the
    event of a willful breach of this Agreement by Promus. Notwithstanding the
    foregoing, if and to the extent that Doubletree has purchased shares of
    Promus Common Stock pursuant to the Doubletree Stock Option Agreement prior
    to the Fee Payment Date, the amount payable to Doubletree under this Section
    7.3(c), together with (i)(x) the net cash amount received by Doubletree
    prior to the Fee Payment Date pursuant to Promus's repurchase of Shares (as
    defined in the Doubletree Stock Option Agreement) pursuant to Section 7 of
    the Doubletree Stock Option Agreement, less (y) Doubletree's purchase price
    for such Shares, and (ii)(x) the amounts received by Doubletree prior to the
    Fee Payment Date pursuant to the sale of Shares (or any other securities
    into which such Shares are converted or exchanged), less (y) Doubletree's
    purchase price for such Shares, shall not exceed $65 million.
 
        (d) The fees payable pursuant to Section 7.3(b) or 7.3(c) shall be paid
    concurrently with the first to occur of the events described in Section
    7.3(b)(i), (ii) or (iii) or 7.3(c)(i), (ii) or (iii), respectively.
 
        (e) As used in this Agreement, "Alternative Transaction" means either
    (i) a transaction pursuant to which any Third Party acquires more than 20%
    of the outstanding shares of Doubletree Common Stock or Promus Common Stock,
    as the case may be, pursuant to a tender offer or exchange offer or
    otherwise, (ii) a merger or other business combination involving Doubletree
    or Promus pursuant to which any Third Party (or the stockholders of a Third
    Party) acquires more than 20% of the outstanding shares of Doubletree Common
    Stock or Promus Common Stock, as the case may be, or the entity surviving
    such merger or business combination, (iii) any other transaction pursuant to
    which any Third Party acquires control of assets (including for this purpose
    the outstanding equity securities of Subsidiaries of Doubletree or Promus,
    and the entity surviving any merger or business combination including any of
    them) of Doubletree or Promus having a fair market value (as determined by
    the Board of Directors of Doubletree or Promus, as the case may be, in good
    faith) equal to more than 20% of the fair market value of all the assets of
    Doubletree or Promus, as the case may be, and their respective Subsidiaries,
    taken as a whole, immediately prior to such transaction, or (iv) any public
    announcement of a proposal, plan or intention to do any of the foregoing or
    any agreement to engage in any of the foregoing.
 
        Section 7.4.  AMENDMENT.  This Agreement may be amended by the parties
    hereto, by action taken or authorized by their respective Boards of
    Directors, at any time before or after approval of the matters presented in
    connection with the Mergers by the stockholders of Doubletree or Promus,
    but, after any such approval, no amendment shall be made which by law
    requires further approval by such stockholders without such further
    approval. This Agreement may not be amended except by an instrument in
    writing signed on behalf of each of the parties hereto; provided, however,
    that this Agreement may be amended in writing without obtaining the
    signatures of Doubletree, Promus or Parent solely for the purpose of adding
    Doubletree Sub and Merger Sub as parties to this Agreement.
 
        Section 7.5.  EXTENSION; WAIVER.  At any time prior to the Effective
    Time, the parties hereto, by action taken or authorized by their respective
    Boards of Directors, may, to the extent legally allowed, (i) extend the time
    for the performance of any of the obligations or other acts of the other
    parties hereto, (ii) waive any inaccuracies in the representations and
    warranties contained herein or in any document delivered pursuant hereto and
    (iii) waive compliance with any of the agreements or
 
                                       45
<PAGE>
    conditions contained here. Any agreement on the part of a party hereto to
    any such extension or waiver shall be valid only if set forth in a written
    instrument signed on behalf of such party.
 
                                 ARTICLE VIII.
 
                                 MISCELLANEOUS
 
        Section 8.1.  NONSURVIVAL OF REPRESENTATIONS, WARRANTIES AND
    AGREEMENTS.  None of the representations, warranties and agreements in this
    Agreement or in any instrument delivered pursuant to this Agreement shall
    survive the Effective Time, except for the agreements contained in Sections
    1.6, 2.1, 2.2, 2.4, 5.16, 5.19, 5.20 and 5.27 and Article VIII, and the
    agreements of the Affiliates delivered pursuant to Section 5.12. The
    Confidentiality Agreements shall survive the execution and delivery of this
    Agreement.
 
        Section 8.2.  NOTICES.  All notices and other communications hereunder
    shall be in writing and shall be deemed given if delivered personally,
    telecopied (which is confirmed) or mailed by registered or certified mail
    (return receipt requested) to the parties at the following addresses (or at
    such other address for a party as shall be specified by like notice):
 
           (a) if to Doubletree, to
 
Doubletree Corporation
                             410 North 44th Street, Suite 700
                             Phoenix, AZ 85008
                             Attn: Richard M. Kelleher
                             Telecopy: (602) 220-6753
 
with a copy to
                             Dewey Ballantine
                             1301 Avenue of the Americas
                             New York, NY 10019-6092
                             Attn: William J. Phillips, Esq.
                             Telecopy: (212) 295-6333
 
           (b) if to Promus, to
 
Promus Hotel Corporation
                             755 Crossover Lane
                             Memphis, TN 38117
                             Attn: Raymond E. Schultz
                             Telecopy: (901) 374-5636
 
with a copy to:
                             Latham & Watkins
                             633 West Fifth Street, Suite 4000
                             Los Angeles, CA 90071-2007
                             Attn: John M. Newell, Esq.
                             Telecopy: (213) 891-8763
 
    Section 8.3.  INTERPRETATION.  When a reference is made in this Agreement to
Sections, such reference shall be to a Section of this Agreement unless
otherwise indicated. The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. Whenever the words "include,"
"includes" or "including" are used in this Agreement they shall be deemed to be
followed by the words "without limitation." The phrase "made
 
                                       46
<PAGE>
available" in this Agreement shall mean that the information referred to has
been made available if requested by the party to whom such information is to be
made available. The phrases "the date of this Agreement", "the date hereof," and
terms of similar import, unless the context otherwise requires, shall be deemed
to refer to September 1, 1997.
 
    Section 8.4.  COUNTERPARTS.  This Agreement may be executed in two or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when two or more counterparts have been signed by each of
the parties and delivered to the other parties, it being understood that all
parties need not sign the same counterpart.
 
    Section 8.5.  ENTIRE AGREEMENT; NO THIRD PARTY BENEFICIARIES.  This
Agreement and all documents and instruments referred to herein (a) constitute
the entire agreement and supersedes all prior agreements and understandings,
both written and oral, among the parties with respect to the subject matter
hereof, and (b) except as provided in Section 5.16 are not intended to confer
upon any person other than the parties hereto any rights or remedies hereunder;
provided that the Confidentiality Agreements shall remain in full force and
effect until the Effective Time. Each party hereto agrees that, except for the
representations and warranties contained in this Agreement, neither Doubletree
nor Promus makes any other representations or warranties, and each hereby
disclaims any other representations and warranties made by itself or any of its
officers, directors, employees, agents, financial and legal advisors or other
representatives, with respect to the execution and delivery of this Agreement or
the transactions contemplated hereby, notwithstanding the delivery or disclosure
to the other or the other's representatives of any documentation or other
information with respect to any one or more of the foregoing.
 
    Section 8.6.  GOVERNING LAW.  This Agreement shall be governed and construed
in accordance with the laws of the State of Delaware without regard to any
applicable conflicts of law.
 
    Section 8.7.  ASSIGNMENT.  Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties. Subject to the preceding sentence, this Agreement
will be binding upon, inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.
 
                                       47
<PAGE>
                                   SIGNATURES
 
    IN WITNESS WHEREOF, Doubletree, Promus and Parent have caused this Agreement
to be signed by their respective duly authorized officers as of the date first
written above.
 
                                          DOUBLETREE CORPORATION
 
                                          /s/ Richard M. Kelleher
                                          --------------------------------------
 
                                          By: Richard M. Kelleher
                                          Its: President & CEO
 
                                          PROMUS HOTEL CORPORATION
 
                                          /s/ Raymond E. Schultz
                                          --------------------------------------
 
                                          By: Raymond E. Schultz
                                          Its: President & Chief Executive
                                          Officer
 
                                          PARENT HOLDING CORP.
 
                                          /s/ Raymond E. Schultz
                                          --------------------------------------
 
                                          By: Raymond E. Schultz
                                          Its: Chief Executive Officer &
                                          Chairman of the Board
 
                                       48

<PAGE>
                                                                     EXHIBIT 2.2
 
                              AMENDMENT AGREEMENT
 
    This AMENDMENT AGREEMENT is made as of the 1st day of October 1997, by and
among Doubletree Acquisition Corp., a Delaware corporation ("Doubletree Sub")
and Promus Acquisition Corp., a Delaware corporation ("Promus Sub").
 
    Reference is made to that certain Agreement and Plan of Merger among
Doubletree Corporation, a Delaware corporation ("Doubletree"), Promus Hotel
Corporation, a Delaware corporation ("Promus"), and Parent Holding Corp., a
Delaware corporation, one half of the issued and outstanding capital stock of
which is owned by each of Doubletree and Promus ("Parent") dated as of September
1, 1997 (the "Merger Agreement"). Pursuant to the obligations created by
Sections 1.2 and 1.3 of the Merger Agreement, by this Amendment Agreement
Doubletree Sub and Promus Sub shall hereby become additional parties to the
Merger Agreement and become subject to the provisions thereunder and to the
obligations created thereunder. In addition, by executing this Amendment
Agreement, Doubletree Sub and Promus Sub shall be deemed to have executed and
delivered the Merger Agreement.
 
<TABLE>
<S>                                           <C>
DOUBLETREE ACQUISITION CORP.                  PROMUS ACQUISITION CORP.
 
By: /s/David L. Stivers                       By: /s/Raymond E. Schultz
   Name: David L. Stivers                        Name: Raymond E. Schultz
   Title:  President                             Title:  Chief Executive Officer
</TABLE>

<PAGE>
                                    FORM OF
                                    RESTATED
                          CERTIFICATE OF INCORPORATION
                                       OF
                              PARENT HOLDING CORP.
 
    The present name of the Corporation is Parent Holding Corp. and the
Corporation was incorporated by the filing of its original Certificate of
Incorporation with the Secretary of State of the State of Delaware on August 29,
1997. This Restated Certificate of Incorporation of the Corporation, which both
restates and further amends the provisions of the Corporation's Certificate of
Incorporation, was duly adopted in accordance with the provisions of Sections
242 and 245 of the General Corporation Law of the State of Delaware and by the
written consent of stockholders in accordance with Section 228 of the General
Corporation Law of the State of Delaware. The Certificate of Incorporation of
the Corporation is hereby amended and restated to read in its entirety as
follows:
 
        FIRST:  The name of the Corporation is Promus Hotel Corporation.
 
        SECOND:  The address of the registered office of the Corporation in the
    State of Delaware is Corporation Service Company, 1013 Centre Road, in the
    City of Wilmington, County of New Castle, State of Delaware. The name of its
    registered agent at that address is Corporation Service Company.
 
        THIRD:  The purpose of the Corporation is to engage in any lawful act or
    activity for which a corporation may be organized under the General
    Corporation Law of Delaware as set forth in Title 8 of the Delaware Code
    (the "GCL").
 
        FOURTH:  A.  The total number of shares of stock which the Corporation
    shall have authority to issue is 510,000,000 (the "Capital Stock")
    consisting of 500,000,000 shares of Common Stock, par value $0.01 per share
    (the "Common Stock"), and 10,000,000 shares of Preferred Stock, par value of
    $0.01 per share (the "Preferred Stock").
 
        B.  Shares of Preferred Stock may be issued from time to time in one or
    more series, as provided for herein or as provided for by the Board of
    Directors as permitted hereby. All shares of Preferred Stock shall be of
    equal rank and shall be identical, except in respect of the terms fixed
    herein for the series provided for herein or fixed by the Board of Directors
    for series provided for by the Board of Directors as permitted hereby. All
    shares of any one series shall be identical in all respects with all the
    other shares of such series, except the shares of any one series issued at
    different times may differ as to the dates from which dividends thereon may
    be cumulative.
 
        The Board of Directors is hereby authorized, by resolution or
    resolutions, to establish, out of the unissued shares of Preferred Stock not
    then allocated to any series of Preferred Stock, additional series of
    Preferred Stock. Before any shares of any such additional series are issued,
    the Board of Directors shall fix and determine, and is hereby expressly
    empowered to fix and determine, by resolution or resolutions, the number of
    shares constituting such series and the distinguishing characteristics and
    the relative rights, preferences, privileges and immunities, if any, and any
    qualifications, limitations or restrictions thereof, of the shares thereof,
    so far as not inconsistent with the provisions of this Article FOURTH.
    Without limiting the generality of the foregoing, the Board of Directors may
    fix and determine:
 
             1. The designation of such series and the number of shares which
       shall constitute such series of such shares;
 
             2. The rate of dividend, if any, payable on shares of such series;
 
                                       1
<PAGE>
             3. Whether the shares of such series shall be cumulative,
       non-cumulative or partially cumulative as to dividends, and the dates
       from which any cumulative dividends are to accumulate;
 
             4. Whether the shares of such series may be redeemed, and, if so,
       the price or prices at which and the terms and conditions on which shares
       of such series may be redeemed;
 
             5. The amount payable upon shares of such series in the event of
       the voluntary or involuntary dissolution, liquidation or winding up of
       the affairs of the Corporation;
 
             6. The sinking fund provisions, if any, for the redemption of
       shares of such series;
 
             7. The voting rights, if any, of the shares of such series;
 
             8. The terms and conditions, if any, on which shares of such series
       may be converted into shares of capital stock of the Corporation of any
       other class or series;
 
             9. Whether the shares of such series are to be preferred over
       shares of capital stock of the Corporation of any other class or series
       as to dividends, or upon the voluntary or involuntary dissolution,
       liquidation, or winding up of the affairs of the Corporation, or
       otherwise; and
 
            10. Any other characteristics, preferences, limitations, rights,
       privileges, immunities or terms not inconsistent with the provisions of
       this Article FOURTH.
 
        C.  Except as otherwise provided in this Restated Certificate of
    Incorporation, each holder of Common Stock shall be entitled to one vote for
    each share of Common Stock held by him on all matters submitted to
    stockholders for a vote and each holder of Preferred Stock of any series
    that is Voting Stock shall be entitled to such number of votes for each
    share held by him as may be specified in the resolutions providing for the
    issuance of such series.
 
        Except as otherwise provided by law, the presence, in person or by
    proxy, of the holders of record of issued and outstanding shares of Capital
    Stock entitling the holders thereof to cast a majority of the votes entitled
    to be cast by the holders of issued and outstanding shares of Capital Stock
    entitled to vote shall constitute a quorum at all meetings of the
    stockholders.
 
        FIFTH:  A.  The Board of Directors shall have the power to make, adopt,
    alter, amend, change or repeal the Bylaws of the Corporation by resolution
    adopted by the affirmative vote of a majority of the entire Board of
    Directors, subject to any bylaw requiring the affirmative vote of a larger
    percentage of the members of the Board of Directors.
 
        B.  Stockholders may not make, adopt, alter, amend, change or repeal the
    Bylaws of the Corporation except upon the affirmative vote of at least 75%
    of the votes entitled to be cast by the holders of all outstanding shares
    then entitled to vote generally in the election of directors, voting
    together as a single class.
 
        SIXTH:  The business and affairs of the Corporation shall be managed by
    or under the direction of the Board of Directors, which shall consist of not
    less than three or more than twenty directors, the exact number of directors
    to be determined from time to time by resolution adopted by affirmative vote
    of a majority of the entire Board of Directors, subject to any bylaw
    requiring the affirmative vote of a larger percentage of the members of the
    Board of Directors. The Board of Directors shall be divided into three
    classes, designated Class I, Class II and Class III. Class I shall consist
    of four directors, and each of Class II and Class III shall consist of five
    directors. Class I directors shall be initially elected for a term expiring
    at the first annual meeting of stockholders of the Corporation following the
    date hereof, Class II directors shall be initially elected for a term
    expiring at the second annual meeting of stockholders of the Corporation
    following the date hereof, and Class III directors shall be initially
    elected for a term expiring at the third annual meeting of stockholders of
    the Corporation following the date hereof. At each annual meeting of
    stockholders following the date
 
                                       2
<PAGE>
    hereof, successors to the class of directors whose term expires at that
    annual meeting shall be elected for a three year term. If the number of
    directors is changed, any increase or decrease shall be apportioned among
    the classes so as to maintain the number of directors in each class as
    nearly equal as possible, and any additional director of any class elected
    to fill a vacancy resulting from an increase in such class shall hold office
    for a term that shall coincide with the remaining term of that class, but in
    no case will a decrease in the number of directors shorten the term of any
    incumbent director. A director shall hold office until the annual meeting
    for the year in which his term expires and until his successor shall be
    elected and shall qualify, subject, however, prior to death, resignation,
    retirement, disqualification or removal from office. Any vacancy on the
    Board of Directors that results from an increase in the number of directors
    and any other vacancy may only be filled by a majority of the directors then
    in office, even if less than a quorum, or by a sole remaining director. Any
    director elected to fill a vacancy not resulting from an increase in the
    number of directors shall have the same remaining term as that of his
    predecessor.
 
        Notwithstanding the foregoing, whenever the holders of any one or more
    series of Preferred Stock issued by the Corporation shall have the right,
    voting separately by class or series, to elect directors at an annual or
    special meeting of stockholders, the election, term of office, removal,
    filling of vacancies and other features of such directorships shall be
    governed by the terms of this Restated Certificate of Incorporation
    applicable thereto (including the resolutions of the Board of Directors
    pursuant to Article FOURTH hereof), and such Directors so elected shall not
    be divided into classes pursuant to this Article SIXTH unless expressly
    provided by such terms.
 
        SEVENTH:  Special meetings of the stockholders of the Corporation, for
    any purpose or purposes, may only be called at any time by a majority of the
    entire Board of Directors or by either the Chairman or the President of the
    Corporation.
 
        EIGHTH:  No stockholder action may be taken except at an annual or
    special meeting of stockholders of the Corporation and stockholders of the
    corporation may not take any action by written consent in lieu of a meeting.
 
        NINTH:  A.  In addition to any affirmative vote required by law or this
    Restated Certificate of Incorporation (including any resolutions of the
    Board of Directors pursuant to Article FOURTH hereof) or the Bylaws of the
    Corporation, and except as otherwise expressly provided in Section B of this
    Article NINTH, a Business Combination (as hereinafter defined) with, or
    proposed by or on behalf of, any Interested Stockholder (as hereinafter
    defined) or any Affiliate or Associate (as hereinafter defined) of any
    Interested Stockholder or any person who thereafter would be an Affiliate or
    Associate of such Interested Stockholder shall, except as otherwise
    prohibited by applicable law, require the affirmative vote of (i) not less
    than 75% of the votes entitled to be cast by the holders of all of the then
    outstanding shares of Voting Stock (as hereinafter defined), voting together
    as a single class and (ii) not less than a majority of the votes entitled to
    be cast by holders of all the then outstanding Voting Stock, voting together
    as a single class, excluding Voting Stock beneficially owned by such
    Interested Stockholder. Such affirmative vote shall be required
    notwithstanding the fact that no vote may be required, or that a lesser
    percentage or separate class vote may be specified, by law or in any
    agreement with any national securities exchange or otherwise.
 
        B.  The provisions of Section A of this Article NINTH shall not be
    applicable to any particular Business Combination, and such Business
    Combination shall require only such affirmative vote, if any, as is required
    by law or by any other provision of this Restated Certification of
    Incorporation (including any resolutions of the Board of Directors pursuant
    to Article FOURTH hereof) or the Bylaws of the Corporation, or any agreement
    with any national securities exchange, if all the conditions specified in
    either of the following Paragraphs 1 or 2 are met or, in the case of
    Business
 
                                       3
<PAGE>
    Combination not involving the payment of consideration to the holders of the
    Corporation's outstanding Capital Stock (as hereinafter defined), if the
    condition specified in the following Paragraph 1 is met:
 
           1.  The Business Combination shall have been approved, either
       specifically or as a transaction which is in an approved category of
       transactions, by a majority (whether such approval is made prior to or
       subsequent to the acquisition of, or announcement or public disclosure of
       the intention to acquire, beneficial ownership of the Voting Stock that
       caused the Interested Stockholder to become an Interested Stockholder) of
       the Continuing Directors (as hereinafter defined).
 
           2.  All of the following conditions shall have been met:
 
               a.  The aggregate amount of cash and the Fair Market Value (as
           hereinafter defined), as of the date of the consummation of the
           Business Combination of consideration other than cash to be received
           per share by holders of Common Stock in such Business Combination
           shall be at least equal to the highest amount determined under
           clauses (i) and (ii) below:
 
                    (i) (if applicable) the highest per share price (including
               any brokerage commissions, transfer taxes and soliciting dealers'
               fees) paid by or on behalf of the Interested Stockholder for any
               share of Common Stock in connection with the acquisition by the
               Interested Stockholder of beneficial ownership of shares of
               Common Stock (x) within the two-year period immediately prior to
               the first public announcement of the proposed Business
               Combination (the "Announcement Date") or (y) in the transaction
               in which it became an Interested Stockholder, whichever is
               higher, in either case as adjusted for any subsequent stock
               split, stock dividend, subdivision or reclassification with
               respect to common stock; and
 
                    (ii) the Fair Market Value per share of Common Stock on the
               Announcement Date or on the date on which the Interested
               Stockholder became an Interested Stockholder (the "Determination
               Date"), whichever is higher.
 
               b.  The aggregate amount of cash and the Fair Market Value, as of
           the date of the consummation of the Business Combination, of
           consideration other than cash to be received per share by holders of
           shares of each class or series of outstanding Capital Stock, other
           than Common Stock, shall be at least equal to the highest amount
           determined under clauses (i), (ii) and (iii) below:
 
                    (i) (if applicable) the highest per share price (including
               any brokerage commissions, transfer taxes and soliciting dealers'
               fees) paid by or on behalf of the Interested Stockholder for any
               share of such class or series of Capital Stock in connection with
               the acquisition by the Interested Stockholder of beneficial
               ownership of shares of such class or series of Capital Stock (x)
               within the two-year period immediately prior to the Announcement
               Date or (y) in the transaction in which it became an Interested
               Stockholder, whichever is higher, in either case as adjusted for
               any subsequent stock split, stock dividend, subdivision or
               reclassification with respect to such class or series of Capital
               Stock;
 
                    (ii) the Fair Market Value per share of such class or series
               of Capital Stock on the Announcement Date or on the Determination
               Date, whichever is higher, as adjusted for any subsequent stock
               split, stock dividend, subdivision or reclassification with
               respect to such class or series of Capital Stock; and
 
                   (iii) (if applicable) the highest preferential amount per
               share to which the holders of shares of such class or series of
               Capital Stock would be entitled in the event of any
 
                                       4
<PAGE>
               voluntary or involuntary liquidation, dissolution or winding up
               of the affairs of the Corporation regardless of whether the
               Business Combination to be consummated constitutes such an event.
 
               The provisions of this Paragraph 2(b) shall be required to be met
           with respect to every class or series of outstanding Capital Stock,
           whether or not the Interested Stockholder has previously acquired
           beneficial ownership of any shares of a particular class or series of
           Capital Stock.
 
               c.  The consideration to be received by holders of a particular
           class or series of outstanding Capital Stock shall be in cash or in
           the same form as previously has been paid by or on behalf of the
           Interested Stockholder in connection with its direct or indirect
           acquisition of beneficial ownership of shares of such class or series
           of Capital Stock. If the consideration so paid for shares of any
           class or series of Capital Stock varied as to form, the form of
           consideration for such class or series of Capital Stock shall be
           either cash or the form used to acquire beneficial ownership of the
           largest number of shares of such class or series of Capital Stock
           previously acquired by the Interested Stockholder.
 
               d.  After the Determination Date and prior to the consummation of
           such Business Combination: (i) except as approved by a majority of
           the Continuing Directors, there shall have been no failure to declare
           and pay at the regular date therefor any full periodic dividends
           (whether or not cumulative) payable in accordance with the terms of
           any outstanding Capital Stock; (ii) there shall have been no
           reduction in the annual rate of dividends paid on the Common Stock
           (except as necessary to reflect any stock split, stock dividend or
           subdivision of the Common Stock), except as approved by a majority of
           the Continuing Directors; (iii) there shall have been an increase in
           the annual rate of dividends paid on the Common Stock as necessary to
           reflect any reclassification (including any reverse stock split),
           recapitalization, reorganization or any similar transaction that has
           the effect of reducing the number of outstanding shares of Common
           Stock, unless the failure so to increase such annual rate is approved
           by a majority of the Continuing Directors; and (iv) such Interested
           Stockholders shall not have become the beneficial owner of any
           additional shares of Capital Stock except as part of the transaction
           that results in such Interested Stockholder becoming an Interested
           Stockholder and except in a transaction that, after giving effect
           thereto, would not result in any increase in the Interested
           Stockholder's percentage beneficial ownership of any class or series
           of Capital Stock.
 
               e.  A proxy or information statement describing the proposed
           Business Combination and complying with the requirements of the
           Securities Exchange Act of 1934 and the rules and regulations
           thereunder (the "Act") (or any subsequent provisions replacing such
           Act, rules or regulations) shall be mailed to all stockholders of the
           Corporation at least 30 days prior to the consummation of such
           Business Combination (whether or not such proxy or information
           statement is required to be mailed pursuant to such Act or subsequent
           provisions). The proxy or information statement shall contain on the
           first page thereof, in a prominent place, such statement, if any, as
           to the advisability (or inadvisability) of the Business Combination
           that the Continuing Directors, or any of them, may choose to make
           and, if deemed advisable by a majority of the Continuing Directors,
           the opinion of an investment banking firm selected by a majority of
           the Continuing Directors as to the fairness (or not) of the terms of
           the Business Combination from a financial point of view to the
           holders of the outstanding shares of Capital Stock other than the
           Interested Stockholder and its Affiliates or Associates, such
           investment banking firm to be paid a reasonable fee for its services
           by the Corporation.
 
                                       5
<PAGE>
               f.  Such Interested Stockholder shall not have made any major
           change in the Corporation's business or equity capital structure
           without the approval of a majority of the Continuing Directors.
 
               g.  After the Determination Date, such Interested Stockholder
           shall not have received the benefit, directly or indirectly (except
           proportionately as a shareholder), of any loans, advances,
           guarantees, pledges or other financial assistance or any tax credits
           or other tax advantages provided by the Corporation, whether in
           anticipation of or in connection with such Business Combination or
           otherwise.
 
        C.  The following definitions shall apply with respect to this article
    NINTH:
 
             1. The term "Business Combination" shall mean:
 
               a.  any merger or consolidation of the Corporation or any
           Subsidiary (as hereinafter defined) with (i) any Interested
           Stockholder or (ii) any other company (whether or not itself an
           Interested Stockholder) which is, or after such merger or
           consolidation would be, an Affiliate or Associate of an Interested
           Stockholder; or
 
               b.  any sale, lease, exchange, mortgage, pledge, transfer or
           other disposition or security arrangement, investment, loan, advance,
           guarantee, agreement to purchase or sell, agreement to pay, extension
           of credit, joint venture participation or other arrangement (in one
           transaction or a series of transactions) with or for the benefit of
           any Interested Stockholder or any Affiliate or Associate of any
           Interested Stockholder involving any assets, securities or
           commitments of the Corporation, any Subsidiary or any Interested
           Stockholder or any Affiliate or Associate of any Interested
           Stockholder which (except for any arrangement, whether as employee or
           consultant or otherwise, other than as director, pursuant to which
           any Interested Stockholder or any Affiliate or Associate thereof
           shall, directly or indirectly, have any control over or
           responsibility for the management of any aspect of the business or
           affairs of the Corporation, with respect to which arrangement the
           value test set forth below shall not apply), together with all other
           such arrangements (including all contemplated future events), has an
           aggregate Fair Market Value and/or involves aggregate commitments of
           $100,000,000 or more or constitutes more than 5 percent of the book
           value of the total assets (in the case of transactions involving
           assets or commitments other than capital stock) or 5 percent of the
           stockholders' equity (in the case of transactions in capital stock)
           of the entity in question (the "Substantial Part"), as reflected in
           the most recent fiscal year-end consolidated balance sheet of such
           entity existing at the time the stockholders of the Corporation would
           be required to approve or authorize the Business Combination
           involving the assets, securities and/or commitments constituting any
           Substantial Part; provided, that if stockholders' equity is negative,
           the fair market value of the outstanding Capital Stock at the date of
           such balance sheet shall be used in lieu thereof in determining if a
           transaction involves a Substantial Part; or
 
               c.  the adoption of any plan or proposal for the liquidation or
           dissolution of the Corporation or for any amendment to the
           Corporation's Bylaws; or
 
               d.  any reclassification of securities (including any reverse
           stock split), or recapitalization of the Corporation, or any merger
           or consolidation of the Corporation with any of its Subsidiaries or
           any other transaction (whether or not with or otherwise involving an
           Interested Stockholder) that has the effect, directly or indirectly,
           of increasing the proportionate share of any class or series of
           Capital Stock, or any securities convertible into Capital Stock or
           into equity securities of any Subsidiary, that is beneficially owned
           by any Interested Stockholder or any affiliate or Associate of any
           Interested Stockholder; or
 
                                       6
<PAGE>
               e.  any agreement, contract or other arrangement providing for
           any one or more of the actions specified in the foregoing clauses (a)
           to (d).
 
             2. The term "Voting Stock" shall mean all Capital Stock which by
       its terms may be voted on all matters submitted to stockholders of the
       Corporation generally.
 
             3. The term "person" shall mean any individual, firm, company or
       other entity and shall include any group comprised of any person and any
       other person with whom such person or any Affiliate or Associate of such
       person has any agreement, arrangement or understanding, directly or
       indirectly, for the purpose of acquiring, holding, voting or disposing of
       Capital Stock.
 
             4. The term "Interested Stockholder" shall mean any person (other
       than (i) the Corporation or any Subsidiary, any profit-sharing, employee
       stock ownership or other employee benefit plan of the Corporation or any
       Subsidiary or any trustee of or fiduciary with respect to any such plan
       when acting in such capacity and (ii) Doubletree Corporation, Promus
       Acquisition Corp. and any Subsidiary thereof) who (a) is, or has
       announced or publicly disclosed a plan or intention to become, the
       beneficial owner of Voting Stock representing ten percent or more of the
       votes entitled to be cast by the holders of all the then outstanding
       shares of Voting Stock; or (b) is an Affiliate or Associate of the
       Corporation and at any time within the two-year period immediately prior
       to the date in question was the beneficial owner of Voting Stock
       representing ten percent or more of the votes entitled to be cast by the
       holders of all the then outstanding shares of Voting Stock; or (c) is an
       assignee of or has otherwise succeeded to any Voting Stock which was at
       any time within the two-year period immediately prior to the date in
       question beneficially owned by an Interested Stockholder, if such
       assignment or succession shall have occurred in the course of a
       transaction or series of transactions not involving a public offering
       within the meaning of the Securities Act of 1933, as amended.
 
             5. A person shall be a "beneficial owner" of any Capital Stock (a)
       which such person or any of its Affiliates or Associates beneficially
       owns, directly or indirectly; (b) which such person or any of its
       Affiliates or Associates has, directly or indirectly, (i) the right to
       acquire (whether such right is exercisable immediately or subject only to
       the passage of time), pursuant to any agreement, arrangement or
       understanding or upon the exercise of conversion rights, exchange rights,
       warrants or options, or otherwise, or (ii) the right to vote pursuant to
       any agreement, arrangement or understanding (but neither such person nor
       any such Affiliate or Associate shall be deemed to be the beneficial
       owner of any shares of Voting Stock solely by reason of a revocable proxy
       granted for a particular meeting of stockholders, pursuant to a public
       solicitation of proxies for such meeting, and with respect to which
       shares neither such person nor any such Affiliate or Associate is
       otherwise deemed the beneficial owner); or (c) which is beneficially
       owned, directly or indirectly, by any other person with which such person
       or any of its Affiliates or Associates has any agreement, arrangement or
       understanding for the purpose of acquiring, holding, voting (except to
       the extent contemplated by the parenthetical clause in Section
       C.5(b)(ii)) or disposing of any shares of Capital Stock; provided that:
       (x) no director or officer of the Corporation (nor any Affiliate or
       Associate of any such director or officer) shall, solely by reason of any
       or all of such directors or officers acting in their capacities as such,
       be deemed the "beneficial owner" of any shares of Capital Stock that are
       beneficially owned by any other such director or officer; (y) in the case
       of any employee stock ownership or similar plan of the Corporation or of
       any Subsidiary in which the beneficiaries thereof possess the right to
       vote the shares of Voting Stock held by such plan, no such plan nor any
       trustee with respect thereto (nor any Affiliate or Associate of such
       trustee), solely by reason of such capacity of such trustee, shall be
       deemed the "beneficial owner" of the shares of Voting Stock held under
       such plan; and (z) no person shall be deemed the "beneficial owner" of
       any shares of Voting Stock held in any voting trust, employee stock
       ownership plan or any similar plan or trust if such person does not
       possess the right to vote such shares. For the purposes of determining
       whether a person is an
 
                                       7
<PAGE>
       Interested Stockholder pursuant to Paragraph 4 of this section C, the
       number of shares of Capital Stock deemed to be outstanding shall include
       shares deemed beneficially owned by such person through application of
       this Paragraph 5 of Section C, but shall not include any other shares of
       Capital Stock that may be issuable pursuant to any agreement, arrangement
       or understanding, or upon exercise of conversion rights, warrants or
       options, or otherwise. Notwithstanding the foregoing, for purposes of
       this Article NINTH, a person shall not be deemed a "beneficial owner" of
       any Capital Stock which such person has the right to acquire upon
       exercise of the Rights issued pursuant to the Parent Rights Agreement,
       dated as of            , 1997, between the Corporation and
       (including any successor rights plan thereto, the "Rights Agreement"), if
       such person would not be deemed the beneficial owner of such Capital
       Stock under the terms of such Rights Agreement.
 
             6. The terms "Affiliate" and "Associate" shall have the respective
       meanings ascribed to such terms in Rule 12b-2 under the Act as in effect
       on the date that this Article NINTH is approved by the Board (the term
       "registrant" in said Rule 12b-2 meaning in this case the Corporation).
 
             7. The term "Subsidiary" means any company of which a majority of
       any class of equity security is beneficially owned by the Corporation;
       provided, however, that for the purposes of the definition of Interested
       Stockholder set forth in Paragraph 4 of this Section C, the term
       "Subsidiary" shall mean only a company of which a majority of each class
       of equity security is beneficially owned by the Corporation.
 
             8. The term "Continuing Director" means any member of the Board of
       Directors of the Corporation (the "Board of Directors"), while such
       person is a member of the Board of Directors, who is not an Affiliate or
       Associate or representative of the Interested Stockholder and was a
       member of the Board of Directors prior to the time that the Interested
       Stockholder became an Interested Stockholder, and any director who is
       thereafter chosen to fill any vacancy or newly-created directorship on
       the Board of Directors or who is elected and who, in either event, is not
       an Affiliate or Associate or representative of the Interested Stockholder
       and, in connection with such person's initial assumption of office, is
       recommended for appointment or election by a majority of the Continuing
       Directors then on the Board.
 
             9. The term "Fair Market Value" means (a) in the case of cash, the
       amount of such cash; (b) in the case of stock the highest closing sales
       price during the 30-day period immediately preceding the date in question
       of a share of such stock on the Composite Tape for New York Stock
       Exchange--Listed Stocks, or, if such stock is not quoted on the Composite
       Tape, on the New York Stock Exchange, or, if such stock is not listed on
       such Exchange, on the principal United States securities exchange
       registered under the Act on which such stock is listed, or, if such stock
       is not listed on any such exchange, the highest closing sales price or
       bid quotation with respect to a share of such stock during the 30-day
       period preceding the date in question on the NASDAQ National Market or
       any similar system then in use, or if no such quotations are available,
       the fair market value on the date in question of a share of such stock as
       determined by a majority of the Continuing Directors in good faith; and
       (c) in the case of property other than cash or stock, the fair market
       value of such property on the date in question as determined in good
       faith by a majority of the Continuing Directors.
 
            10. In the event of any Business Combination in which the
       Corporation survives, the phrase "consideration other than cash to be
       received" as used in Paragraphs 2.a and 2.b of Section B of this Article
       NINTH shall include the shares of Common Stock and/or the shares of any
       other class or series of Capital Stock retained by the holders of such
       shares.
 
        D.  A majority of the Continuing Directors shall have the power and duty
    to determine for the purposes of this Article NINTH, on the basis of
    information known to them after reasonable inquiry,
 
                                       8
<PAGE>
    all questions arising under this Article NINTH including, without
    limitation, (a) whether a person is an Interested Stockholder, (b) the
    number of shares of Capital Stock or other securities beneficially owned by
    any person, (c) whether a person is an Affiliate or Associate of another,
    (d) whether a Proposed Action (as hereinafter defined) is with, or proposed
    by, or on behalf of, an Interested Stockholder or an Affiliate or Associate
    of an Interested Stockholder, (e) whether the assets that are the subject of
    any Business Combination have, or the consideration to be received for the
    issuance or transfer of securities by the Corporation or any Subsidiary in
    any Business Combination has, an aggregate Fair Market Value of $100,000,000
    or more, (f) whether the assets or securities that are the subject of any
    Business Combination constitute a Substantial Part, and (g) whether the
    applicable conditions set forth in paragraph 2 of Section B of this Article
    NINTH have been met with respect to any Business Combination. Any such
    determination made good faith shall be binding and conclusive on all
    parties.
 
        E.  Nothing contained in this Article NINTH shall be construed to
    relieve any Interested Stockholder from any fiduciary obligation imposed by
    law.
 
        F.  The fact that any Business combination complies with the provisions
    of Section B of this Article NINTH shall not be construed to impose any
    fiduciary duty, obligation or responsibility on the Board of Directors, or
    any member thereof, to approve such Business Combination or recommend its
    adoption or approval to the stockholders of the Corporation, nor shall such
    compliance limit, prohibit or otherwise restrict in any manner the Board of
    Directors, or any member thereof, with respect to evaluations of or actions
    and responses taken with respect to such Business Combination.
 
        G.  For the purpose of this Article NINTH, a Business Combination or any
    proposal to amend, repeal or adopt any provision of this Restated
    Certificate of Incorporation inconsistent with this Article NINTH
    (collectively, "Proposed Action") is presumed to have been proposed by, or
    on behalf of, an Interested Stockholder or a person who thereafter would
    become such if (1) after the Interested Stockholder became such, the
    Proposed Action is proposed following the election of any director of the
    Corporation who with respect to such Interested Stockholder, would not
    qualify to serve as a Continuing Director or (2) such Interested
    Stockholder, Affiliate, Associate or person votes for or consents to the
    adoption of any such Proposed Action, unless as to such Interested
    Stockholder, Affiliate, Associate or person, a majority of the Continuing
    Directors makes a good faith determination that such Proposed Action is not
    proposed by or on behalf of such Interested Stockholder, Affiliate,
    Associate or person, based on information known to them after reasonable
    inquiry.
 
        H.  Notwithstanding any other provisions of this Restated Certificate of
    Incorporation or the Bylaws of the Corporation (and notwithstanding the fact
    that a lesser percentage or separate class vote may be specified by law,
    this Restated Certificate of Incorporation or the Bylaws of the
    Corporation), or any proposal to amend, repeal or adopt any provision of
    this Restated Certificate of Incorporation inconsistent with this Article
    NINTH which is proposed by or on behalf of an Interested Stockholder or an
    Affiliate or Associate of an Interested Stockholder shall require the
    affirmative vote of (i) the holders of not less than 75% of the votes
    entitled to be cast by the holders of all the then outstanding shares of
    Voting Stock, voting together as a single class, and (ii) the holders of not
    less than a majority of the votes entitled to be cast by the holders of the
    then outstanding shares of Voting Stock, voting together as a single class,
    excluding Voting Stock beneficially owned by such Interested Stockholder,
    provided, however, that this Section H shall not apply to, and such vote
    shall not be required for, any amendment, repeal or adoption unanimously
    recommended by the Board of Directors if all of such directors are persons
    who would be eligible to serve as Continuing Directors within the meaning of
    Section C, Paragraph 8 of this Article NINTH.
 
        TENTH:  A.  Subject to Section C of this Article TENTH, the Corporation
    shall indemnify any person who was or is a party or is threatened to be made
    a party to any threatened, pending or completed action, suit or proceeding,
    whether civil, criminal, administrative or investigative (other
 
                                       9
<PAGE>
    than an action by or in the right of the Corporation) by reason of the fact
    that he is or was a director or officer of the Corporation, or is or was
    serving at the request of the Corporation as a director or officer of
    another corporation, partnership, joint venture, trust or other enterprise,
    against expenses (including attorneys' fees), judgments, fines and amounts
    paid in settlement actually and reasonably incurred by him in connection
    with such action, suit or proceeding if he acted in good faith and in a
    manner he reasonably believed to be in or not opposed to the best interests
    of the Corporation, and, with respect to any criminal action or proceeding,
    had no reasonable cause to believe his conduct was unlawful. The termination
    of any action, suit or proceeding by judgment, order, settlement,
    conviction, or upon a plea of nolo contendere or its equivalent, shall not,
    of itself, create a presumption that the person did not act in good faith
    and in a manner which he reasonably believed to be in or not opposed to the
    best interest of the Corporation, or, with respect to any criminal action or
    proceeding, had reasonable cause to believe his conduct was unlawful.
 
        B.  Subject to Section C of this Article TENTH, the Corporation shall
    indemnify any person who was or is a party or is threatened to be made a
    party to any threatened, pending or completed action or suit by or in the
    right of the Corporation to procure a judgment in its favor by reason of the
    fact that he is or was a director or officer of the Corporation, or is or
    was serving at the request of the Corporation as a director or officer of
    another corporation, partnership, joint venture, trust or other enterprise
    against expenses (including attorneys' fees) actually and reasonably
    incurred by him in connection with the defense or settlement of such action
    or suit if he acted in good faith and in a manner he reasonably believed to
    be in or not opposed to the best interest of the Corporation; except that no
    indemnification shall be made in respect of any claim, issue or matter as to
    which such person shall have been adjudged to be liable to the Corporation
    unless and only to the extent that the Court of Chancery or the court in
    which such action or suit was brought shall determine upon application that,
    despite the adjudication of liability but in view of all the circumstances
    of the case, such person is fairly and reasonably entitled to indemnity for
    such expenses which the Court of Chancery or such other court shall deem
    proper.
 
        C.  Any indemnification under this Article TENTH (unless ordered by a
    court) shall be made by the Corporation only as authorized in the specific
    case upon a determination that indemnification of the director or officer is
    proper in the circumstances because he has met the applicable standard of
    conduct set forth in Section A or Section B of this Article TENTH, as the
    case may be. Such determination shall be made (i) by a majority vote of
    directors who were not parties to such action, suit or proceeding, even
    though less than a quorum, or (ii) by a committee of such disinterested
    directors designated by a majority vote of such disinterested directors,
    even though less than a quorum, or (iii) if there are no such disinterested
    directors or if such disinterested directors so directs, by independent
    legal counsel in a written opinion, or (iv) by the stockholders. To the
    extent, however, that a director or officer of the Corporation has been
    successful on the merits or otherwise in defense of any action, suit or
    proceeding described in Section A or Section B of this Article TENTH, or in
    defense of any claim, issue or matter therein, he shall be indemnified
    against expenses (including attorneys' fees) actually and reasonably
    incurred by him in connection therewith, without the necessity of
    authorization in the specific case.
 
        D. For purposes of any determination under Section C of this Article
    TENTH, a person shall be deemed to have acted in good faith and in a manner
    he reasonably believed to be in or not opposed to the best interest of the
    Corporation, and, with respect to any criminal action or proceeding, to have
    had no reasonable cause to believe his conduct was unlawful, if his action
    is based on the records or books of account of the Corporation or another
    enterprise, or on information supplied to him by the officers of the
    Corporation or another enterprise in the course of their duties, or on the
    advice of legal counsel for the Corporation or another enterprise or on
    information or records given or reports made to the Corporation or another
    enterprise by an independent certified public accountant or by an appraiser
    or other expert selected with reasonable care by the Corporation or another
    enterprise. The
 
                                       10
<PAGE>
    term "another enterprise" as used in this Section D of Article TENTH shall
    mean any other corporation or any partnership, joint venture, trust or other
    enterprise of which such person is or was serving at the request of the
    Corporation as a director or officer. The provisions of this Section D shall
    not be deemed to be exclusive or to limit in any way the circumstances in
    which a person may be deemed to have met the applicable standard of conduct
    set forth in Sections A or B of this Article TENTH as the case may be.
 
        E.  Notwithstanding any contrary determination in the specific case
    under Section C of this Article TENTH, and notwithstanding the absence of
    any determination thereunder, any director or officer may apply to any court
    of competent jurisdiction in the State of Delaware for indemnification to
    the extent otherwise permissible under Sections A and B of this Article
    TENTH. The basis of such indemnification by a court shall be a determination
    by such court that indemnification of the director or officer is proper in
    the circumstances because he has met the applicable standards of conduct set
    forth in Sections A or B of this Article TENTH, as the case may be. Notice
    of any application for indemnification pursuant to this Section E of Article
    TENTH shall be given to the Corporation promptly upon the filing of such
    application.
 
        F.  Expenses incurred by a director or officer of the Corporation in
    defending or investigating a threatened or pending action, suit or
    proceeding shall be paid by the Corporation in advance of the final
    disposition of such action, suit or proceeding upon receipt of an
    undertaking by or on behalf of the director or officer to repay such amount
    if it shall ultimately be determined that he is not entitled to be
    indemnified by the Corporation as authorized in this Article TENTH.
 
        G. The indemnification and advancement of expenses provided by this
    Article TENTH shall not be deemed exclusive of any other rights to which any
    person seeking indemnification or advancement of expenses may be entitled
    under any Bylaw, agreement, contract, vote of stockholders or disinterested
    directors or pursuant to the direction (howsoever embodied) of any court of
    competent jurisdiction or otherwise, both as to action in his official
    capacity and as to action in another capacity while holding such office, it
    being the policy of the Corporation that indemnification of, and advancement
    of expenses to, the persons specified in Sections A and B of this Article
    TENTH shall be made to the fullest extent permitted by law. The provisions
    of this Article TENTH shall not be deemed to preclude the indemnification
    of, and advancement of expenses to, any person who is not specified in
    Sections A or B of this Article TENTH but whom the Corporation has the power
    or obligation to indemnify under the provisions of the General Corporation
    Law of the State of Delaware, or otherwise. The indemnification provided by
    this Article TENTH shall continue as to a person who has ceased to be a
    director or officer and shall inure to the benefit of the heirs, executors
    and administrators of such person.
 
        H. The Corporation may purchase and maintain insurance on behalf of any
    person who is or was a director or officer of the Corporation, or, while a
    director or officer of the Corporation, is or was serving at the request of
    the Corporation as a director or officer of another corporation,
    partnership, joint venture, trust or other enterprise against any liability
    asserted against him and incurred by him in any such capacity, or arising
    out of his status as such, whether or not the Corporation would have the
    power or the obligation to indemnify him against such liability under the
    provisions of this Article TENTH.
 
        I.  For purposes of this Article TENTH, reference to "the Corporation"
    shall include, in addition to the resulting corporation, any constituent
    corporation (including any constituent of a constituent) absorbed in a
    consolidation or merger which, if its separate existence had continued,
    would have had power and authority to indemnify its directors or officers,
    so that any person who is or was a director or officer of such constituent
    corporation, or is or was serving at the request of such constituent
    corporation as a director or officer of another corporation, partnership,
    joint venture, trust or other enterprise, shall stand in the same position
    under the provisions of this Article TENTH with
 
                                       11
<PAGE>
    respect to the resulting or surviving corporation as he would have with
    respect to such constituent corporation if its separate existence had
    continued.
 
        ELEVENTH:  Whenever a compromise or arrangement is proposed between this
    Corporation and its creditors or any class of them and/or between this
    Corporation and its stockholders or any class of them, any court of
    equitable jurisdiction within the State of Delaware may, on the application
    in a summary way of this Corporation or of any creditor or stockholder
    thereof or on the application of any receiver or receivers appointed for
    this Corporation under the provisions of Section 291 of the GCL or on the
    application of trustees in dissolution or of any receiver or receivers
    appointed for this Corporation under the provisions of Section 279 of the
    GCL, order a meeting of the creditors or class of creditors, and/or of the
    stockholders or class of stockholders of this Corporation, as the case may
    be, to be summoned in such manner as the said court directs. If a majority
    in number representing three-fourths in value of the creditors or class of
    creditors, and/or of the stockholders or class of stockholders of this
    Corporation, as the case may be, agree to any compromise or arrangement and
    to any reorganization of this Corporation as a consequence of such
    compromise or arrangement, the said compromise or arrangement and the said
    reorganization shall, if sanctioned by the court to which the said
    application has been made, be binding on all the creditors or class of
    creditors, and/or on all the stockholders or class of stockholders, of this
    Corporation, as the case may be, and also on this Corporation.
 
        TWELFTH:  The Corporation reserves the right to amend, alter, change or
    repeal any provision contained in this Restated Certificate of
    Incorporation, in the manner now or thereafter prescribed by statute, and
    all rights conferred upon stockholders herein are granted subject to this
    reservation.
 
        THIRTEENTH:  No director of this Corporation shall be personally liable
    to the Corporation or its stockholders for monetary damages for breach of
    fiduciary duty as a director, except for liability (i) for any breach of the
    director's duty of loyalty to the Corporation or its stockholders, (ii) for
    acts or omissions not in good faith or which involve intentional misconduct
    or a knowing violation of the law, (iii) under Section 174 of the GCL, or
    (iv) for any transaction from which the director derived an improper
    personal benefit. If the GCL is hereafter amended to authorize corporate
    action further limiting or eliminating the personal liability of directors,
    then the liability of each director of the Corporations shall be limited or
    eliminated to the fullest extent permitted by the GCL as so amended from
    time to time.
 
                                       12
<PAGE>
    IN WITNESS WHEREOF, said corporation has caused this Certificate to be
signed by Raymond E. Schultz, its Chief Executive Officer and attested by Ralph
B. Lake, its Secretary, this   day of          , 1997.
 
                                          By:
- --------------------------------------------------------------------------------
                                          Raymond E. Schultz
                                          CHIEF EXECUTIVE OFFICER
 
    ATTEST:
 
    ------------------------------------------
    Ralph B. Lake
    SECRETARY
 
                                       13

<PAGE>
 
                                    FORM OF
                              AMENDED AND RESTATED
                                     BYLAWS
                                       OF
                            PROMUS HOTEL CORPORATION
 
                                   ARTICLE I.
                                    OFFICES
 
    Section 1.  REGISTERED OFFICE.  The registered office of Promus Hotel
Corporation (the "Corporation") shall be at Corporation Service Company, 1013
Centre Road, in the City of Wilmington, County of New Castle, State of Delaware.
 
    Section 2.  OTHER OFFICES.  The Corporation may also have offices at such
other places both within and without the State of Delaware as the Board of
Directors of the Corporation (the "Board of Directors") may from time to time
determine.
 
                                  ARTICLE II.
                            MEETINGS OF STOCKHOLDERS
 
    Section 1.  PLACE OF MEETINGS.  Meetings of the stockholders for the
election of directors or for any other purpose shall be held at such time and
place, either within or without the State of Delaware as shall be designated
from time to time by the Board of Directors and stated in the notice of the
meeting or in a duly executed waiver of notice thereof.
 
    Section 2.  ANNUAL MEETINGS.  The annual meeting of stockholders shall be
held on the last Wednesday in April in each year or on such other date and at
such time as may be fixed by the Board of Directors and stated in the notice of
the meeting, for the purpose of electing directors and for the transaction of
only such other business as is properly brought before the meeting in accordance
with these Bylaws.
 
    Written notice of an annual meeting stating the place, date and hour of the
meeting, shall be given to each stockholder entitled to vote at such meeting not
less than ten nor more than sixty days before the date of the meeting.
 
    To be properly brought before the annual meeting, business must be either
(i) specified in the notice of annual meeting (or any supplement or amendment
thereto) given by or at the direction of the Board of Directors, (ii) otherwise
brought before the annual meeting by or at the direction of the Board of
Directors, or (iii) otherwise properly brought before the annual meeting by a
stockholder. In addition to any other applicable requirements, for business to
be properly brought before an annual meeting by a stockholder, the stockholder
must have given timely notice thereof in writing to the Secretary of the
Corporation. To be timely, a stockholder's notice must be delivered to or mailed
and received at the principal executive offices of the Corporation not less than
sixty (60) days nor more than ninety (90) days prior to the meeting; provided,
however, that in the event that less than seventy (70) days notice or prior
public disclosure of the date of the annual meeting is given or made to
stockholders, notice by a stockholder, to be timely, must be received no later
than the close of business on the tenth (10th) day following the day on which
such notice of the date of the annual meeting was mailed or such public
disclosure was made, whichever first occurs. A stockholder's notice to the
Secretary shall set forth (a) as to each matter the stockholder proposes to
bring before the annual meeting (i) a brief description of the business desired
to be brought before the annual meeting and the reasons for conducting such
business at the annual meeting, and (ii) any material interest of the
stockholder in such business, and (b) as to the
 
                                       1
<PAGE>
stockholder giving the notice (i) the name and record address of the stockholder
and (ii) the class, series and number of shares of capital stock of the
Corporation which are beneficially owned by the stockholder. Notwithstanding
anything in these Bylaws to the contrary, no business shall be conducted at the
annual meeting except in accordance with the procedures set forth in this
Article II, Section 2. The officer of the Corporation presiding at an annual
meeting shall, if the facts warrant, determine and declare to the annual meeting
that business was not properly brought before the annual meeting in accordance
with the provisions of this Article II, Section 2, and if such officer should so
determine, such officer shall so declare to the annual meeting and any such
business not properly brought before the meeting shall not be transacted.
 
    Section 3.  SPECIAL MEETINGS.  Unless otherwise prescribed by law or by the
Restated Certificate of Incorporation of the Corporation (the "Certificate of
Incorporation"), special meetings of stockholders, for any purpose or purposes,
may only be called by a majority of the entire Board of Directors or by the
Chairman of the Board and Chief Executive Officer or the President and Chief
Operating Officer.
 
    Written notice of a special meeting stating the place, date and hour of the
meeting, shall be given to each stockholder entitled to vote at such meeting not
less than ten nor more than sixty days before the date of the meeting.
 
    Section 4.  QUORUM.  Except as otherwise provided by law or by the
Certificate of Incorporation, the holders of a majority of the capital stock
issued and outstanding and entitled to vote thereat, present in person or
represented by proxy, shall constitute a quorum at all meetings of the
stockholders for the transaction of business. If, however, such quorum shall not
be present or represented at any meeting of the stockholders, the holders of a
majority of the votes entitled to be cast by the stockholders entitled to vote
thereat, present in person or represented by proxy may adjourn the meeting from
time to time, without notice other than announcement at the meeting, until a
quorum shall be present or represented by proxy. At such adjourned meeting at
which a quorum shall be present or represented, any business may be transacted
which might have been transacted at the meeting as originally noticed. If the
adjournment is for more than thirty days, or if after the adjournment a new
record date is fixed for the adjourned meeting, a notice of the adjourned
meeting shall be given to each stockholder entitled to vote at the meeting.
 
    Section 5.  VOTING.  Unless otherwise required by law, the Certificate of
Incorporation, the rules or regulations of any stock exchange applicable to the
Corporation or these Bylaws, any question (other than the election of directors)
brought before any meeting of stockholders shall be decided by the vote of the
holders of a majority of the stock represented and entitled to vote thereat. At
all meetings of stockholders for the election of directors, a plurality of the
votes cast shall be sufficient to elect. Each stockholder represented at a
meeting of stockholders shall be entitled to cast one vote for each share of the
capital stock entitled to vote thereat held by such stockholder, unless
otherwise provided by the Certificate of Incorporation. Such votes may be cast
in person or by proxy but no proxy shall be voted after three years from its
date, unless such proxy provides for a longer period. The Board of Directors, in
its discretion, or the officer of the Corporation presiding at a meeting of
stockholders, in his discretion, may require that any votes cast at such meeting
shall be cast by written ballot.
 
    Section 6.  LIST OF STOCKHOLDERS ENTITLED TO VOTE.  The officer of the
Corporation who has charge of the stock ledger of the Corporation shall prepare
and make, at least ten days before every meeting of stockholders, a complete
list of the stockholders entitled to vote at the meeting, arranged in
alphabetical order, and showing the address of each stockholder and the number
of shares registered in the name of each stockholder. Such list shall be open to
the examination of any stockholder, for any purpose germane to the meeting,
during ordinary business hours, for a period of at least ten days prior to the
meeting, either at a place within the city where the meeting is to be held,
which place shall be specified in the notice of the meeting, or, if not so
specified, at the place where the meeting is to be held. The list shall also be
produced and kept at the time and place of the meeting during the whole time
thereof, and may be inspected by any stockholder of the Corporation who is
present.
 
                                       2
<PAGE>
    Section 7.  STOCK LEDGER.  The stock ledger of the Corporation shall be the
only evidence as to who are the stockholders entitled to examine the stock
ledger, the list required by Section 6 of this Article II or the books of the
Corporation, or to vote in person or by proxy at any meeting of stockholders.
 
                                  ARTICLE III.
                                   DIRECTORS
 
    Section 1.  NUMBER OF DIRECTORS; QUALIFICATIONS.  The total number of
persons serving on the Board of Directors of the Corporation shall be fourteen,
half of whom shall be Doubletree Directors and half of whom shall be Promus
Directors (as such terms are defined below), all of which Doubletree Directors
and Promus Directors shall be spread as evenly as possible among the
Corporation's three classes of Directors. Until December 31, 2002, (a) the Board
of Directors of the Corporation and each Committee of the Board of Directors of
the Corporation as constituted following each election of Directors shall
consist of an equal number of Doubletree Directors and Promus Directors, and (b)
the size of the Board of Directors of the Corporation and each Committee of the
Board of Directors of the Corporation shall not be increased unless such
increase is approved by 75% of the members. If, at any time during the period
referenced in the immediately preceding sentence, the number of Doubletree
Directors and Promus Directors serving, or that would be serving following the
next stockholders' meeting at which Directors are to be elected, as Directors of
the Corporation or as members of any Committee of the Board of Directors of the
Corporation, would not be equal, then, subject to the fiduciary duties of the
Directors of the Corporation, the Board of Directors and the Nominating
Committee thereof shall nominate for election at the next stockholders' meeting
at which Directors are to be elected, such person or persons as may be requested
by the remaining Doubletree Directors (if the number of Doubletree Directors is,
or would otherwise become, less than the number of Promus Directors) or by the
remaining Promus Directors (if the number of Promus Directors is, or would
otherwise become, less than the number of Doubletree Directors) to ensure that
there shall be an equal number of Doubletree Directors and Promus Directors. The
provisions of the preceding sentence shall not apply in respect of any
stockholders' meeting which takes place after December 31, 2002. The term
"Doubletree Director" means (i) any person who was selected by the Board of
Directors of Doubletree Corporation, a Delaware corporation, to serve as a
Director of the Corporation and (ii) any person who becomes a Director of the
Corporation pursuant to the second preceding sentence and who is designated by
the Doubletree Directors; and the term "Promus Director" means (i) any person
who was selected by the Board of Directors of Promus Hotel Corporation, a
Delaware corporation, to serve as a Director of the Corporation and (ii) any
person who becomes a Director of the Corporation pursuant to the second
preceding sentence and who is designated by the Promus Directors. The provisions
of this Article III, Section 1 may be amended only with the approval of 75% of
the members of the Board of Directors of the Corporation.
 
    Section 2.  NOMINATION OF DIRECTORS.  Nominations of persons for election to
the Board of Directors of the Corporation at a meeting of stockholders of the
Corporation may be made at such meeting by or at the direction of the Board of
Directors, by any committee or persons appointed by the Board of Directors or by
any stockholder of the Corporation entitled to vote for the election of
directors at the meeting who complies with the notice procedures set forth in
this Article III, Section 2. Such nominations by any stockholder shall be made
pursuant to timely notice in writing to the Secretary of the Corporation. To be
timely, a stockholder's notice shall be delivered to or mailed and received at
the principal executive offices of the Corporation not less than sixty (60) days
nor more than ninety (90) days prior to the meeting; provided however, that in
the event that less than seventy (70) days notice or prior public disclosure of
the date of the meeting is given or made to stockholders, notice by the
stockholder, to be timely, must be received no later than that the close of
business on the tenth (10th) day following the day on which such notice of the
date of the meeting was mailed or such public disclosure was made, whichever
first occurs. Such stockholder's notice to the Secretary shall set forth (i) as
to each person whom the stockholder proposes to nominate for election or
reelection as a director, (a) the name, age, business address and
 
                                       3
<PAGE>
residence address of the person, (b) the principal occupation or employment of
the person, (c) the class and number of shares of capital stock of the
Corporation which are beneficially owned by the person, and (d) any other
information relating to the person that is required to be disclosed in
solicitations for proxies for election of directors pursuant to the Rules and
Regulations of the Securities and Exchange Commission under Section 14 of the
Securities Exchange Act of 1934, as amended; and (ii) as to the stockholder
giving the notice (a) the name and record address of the stockholder and (b) the
class and number of shares of capital stock of the Corporation which are
beneficially owned by the stockholder. The Corporation may require any proposed
nominee to furnish such other information as may reasonably be required by the
Corporation to determine the eligibility of such proposed nominee to serve as a
director of the Corporation. No person shall be eligible for election as a
director of the Corporation unless nominated in accordance with the procedures
set forth herein. The officer of the Corporation presiding at an annual meeting
shall, if the facts warrant, determine and declare to the meeting that a
nomination was not made in accordance with the foregoing procedure, and if he
should so determine, he shall so declare to the meeting and the defective
nomination shall be disregarded.
 
    Section 3.  MEETINGS.  The Board of Directors of the Corporation may hold
meetings, both regular and special, either within or without the State of
Delaware. Regular meetings of the Board of Directors may be held without notice
at such time and at such place as may from time to time be determined by the
Board of Directors. Special meetings of the Board of Directors may be called by
the Chairman of the Board and Chief Executive Officer or the President and Chief
Operating Officer or a majority of the entire Board of Directors. Notice thereof
stating the place, date and hour of the meeting shall be given to each director
either by mail not less than forty-eight (48) hours before the date of the
meeting, by telephone or telegram on twenty-four (24) hours notice, or on such
shorter notice as the person or persons calling such meeting may deem necessary
or appropriate in the circumstances.
 
    Section 4.  QUORUM.  Except as may be otherwise specifically provided by
law, the Certificate of Incorporation or these Bylaws, at all meetings of the
Board of Directors, a majority of the entire Board of Directors shall constitute
a quorum for the transaction of business and the act of a majority of the
directors present at any meeting at which there is a quorum shall be the act of
the Board of Directors. If a quorum shall not be present at any meeting of the
Board of Directors, a majority of the directors present thereat may adjourn the
meeting from time to time, without notice other than announcement at the
meeting, until a quorum shall be present.
 
    Section 5.  ACTIONS OF BOARD OF DIRECTORS.  Unless otherwise provided by the
Certificate of Incorporation or these Bylaws, any action required or permitted
to be taken at any meeting of the Board of Directors or of any committee thereof
may be taken without a meeting, if all the members of the Board of Directors or
committee, as the case may be, consent thereto in writing, and the writing or
writings are filed with the minutes of proceedings of the Board of Directors or
committee.
 
    Section 6.  MEETINGS BY MEANS OF CONFERENCE TELEPHONE.  Unless otherwise
provided by the Certificate of Incorporation or these Bylaws, members of the
Board of Directors of the Corporation, or any committee designated by the Board
of Directors, may participate in a meeting of the Board of Directors or such
committee by means of a conference telephone or similar communications equipment
by means of which all persons participating in the meeting can hear each other,
and participation in a meeting pursuant to this Article III, Section 6 shall
constitute presence in person at such meeting.
 
    Section 7.  COMMITTEES.  The Board of Directors may designate one or more
committees, each committee to consist of one or more of the directors of the
Corporation. The Board of Directors may designate one or more directors as
alternate members of any committee, who may replace any absent or disqualified
member at any meeting of any such committee. In the absence or disqualification
of a member of a committee, and in the absence of a designation by the Board of
Directors of an alternate member to replace the absent or disqualified member,
the member or members thereof present at any meeting and not disqualified from
voting, whether or not he or they constitute a quorum, may unanimously appoint
 
                                       4
<PAGE>
another member of the Board of Directors to act at the meeting in the place of
any absent or disqualified member. Any committee, to the extent allowed by law
and provided in the resolution establishing such committee, shall have and may
exercise all the powers and authority of the Board of Directors in the
management of the business and affairs of the Corporation. Each committee shall
keep regular minutes and report to the Board of Directors when required.
 
    Section 8.  EXECUTIVE COMMITTEE.  The Executive Committee of the Corporation
shall have responsibility for developing the long-term strategic plans of the
Corporation, making significant capital allocation decisions and such other
duties and responsibilities as specified by the Board of Directors. The
Executive Committee shall also be required to oversee the implementation of the
100% guest satisfaction guarantee program at all of the Corporation's hotel
properties.
 
    Section 9.  COMPENSATION.  The directors may be paid their expenses, if any,
of attendance at each meeting of the Board of Directors and may be paid a fixed
sum for attendance at each meeting of the Board of Directors or a stated salary
as director. No such payment shall preclude any director from serving the
Corporation in any other capacity and receiving compensation therefor. Members
of special or standing committees may be allowed like compensation for attending
committee meetings.
 
    Section 10.  INTERESTED DIRECTORS.  No contract or transaction between the
Corporation and one or more of its directors or officers, or between the
Corporation and any other corporation, partnership, association, or other
organization in which one or more of its directors or officers are directors or
officers, or have a financial interest, shall be void or voidable solely for
this reason, or solely because the director or officer is present at or
participates in the meeting of the Board of Directors or committee thereof which
authorizes the contract or transaction, or solely because his or their votes are
counted for such purpose if (i) the material facts as to his or their
relationship or interest and as to the contract or transaction are disclosed or
are known to the Board of Directors or the committee, and the Board of Directors
or committee in good faith authorizes the contract or transaction by the
affirmative votes of a majority of the disinterested directors, even though the
disinterested directors be less than a quorum; or (ii) the material facts as to
his or their relationship or interest and as to the contract or transaction are
disclosed or are known to the shareholders entitled to vote thereon, and the
contract or transaction is specifically approved in good faith by vote of the
shareholders; or (iii) the contract or transaction is fair as to the Corporation
as of the time it is authorized, approved or ratified, by the Board of
Directors, a committee thereof or the shareholders. Common or interested
directors may be counted in determining the presence of a quorum at a meeting of
the Board of Directors or of a committee which authorizes the contract or
transaction.
 
                                  ARTICLE IV.
                                    OFFICERS
 
    Section 1.  GENERAL.  The officers of the Corporation shall be elected by
the Board of Directors and shall consist of: a Chairman of the Board and Chief
Executive Officer; a President and Chief Operating Officer; a Secretary; and a
Treasurer. The Board of Directors, in its discretion, may also elect one or more
Executive Vice Presidents, Senior Vice Presidents, Vice Presidents, Assistant
Secretaries, Assistant Treasurers, a Controller and such other officers as in
the judgment of the Board of Directors may be necessary or desirable. Any number
of offices may be held by the same person, unless otherwise prohibited by law,
the Certificate of Incorporation or these Bylaws. The officers of the
Corporation need not be stockholders of the Corporation nor, except in the case
of the Chairman of the Board of Directors, need such officers be directors of
the Corporation.
 
    Section 2.  ELECTION.  The Board of Directors at its first meeting held
after each annual meeting of stockholders shall elect the officers of the
Corporation who shall hold their offices for such terms and shall exercise such
powers and perform such duties as shall be determined from time to time by the
Board of Directors; and all officers of the Corporation shall hold office until
their successors are chosen and
 
                                       5
<PAGE>
qualified, or until their earlier resignation or removal. Except as otherwise
provided in this Article IV, any officer elected by the Board of Directors may
be removed at any time by the affirmative vote of a majority of the Board of
Directors. Any vacancy occurring in any office of the Corporation shall be
filled by the Board of Directors. The salaries of all officers who are directors
of the Corporation shall be fixed by the Board of Directors.
 
    Section 3.  VOTING SECURITIES OWNED BY THE CORPORATION.  Powers of attorney,
proxies, waivers of notice of meeting, consents and other instruments relating
to securities owned by the Corporation may be executed in the name of and on
behalf of the Corporation by the Chairman of the Board and Chief Executive
Officer, the President and Chief Operating Officer or any Vice President, and
any such officer may, in the name and on behalf of the Corporation, take all
such action as any such officer may deem advisable to vote in person or by proxy
at any meeting of security holders of any corporation in which the Corporation
may own securities and at any such meeting shall possess and may exercise any
and all rights and power incident to the ownership of such securities and which,
as the owner thereof, the Corporation might have exercised and possessed if
present. The Board of Directors may, by resolution, from time to time confer
like powers upon any other person or persons.
 
    Section 4.  CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER.  The Chairman
of the Board shall be a member of the Board of Directors and an officer of the
Corporation, and, if present, shall preside at all meetings of the stockholders
and of the Board of Directors. The Chairman of the Board shall be the Chief
Executive Officer of the Corporation and shall supervise, coordinate and manage
the Corporation's business and activities and supervise, coordinate and manage
its operating expenses and capital allocation, shall have general authority to
exercise all the powers necessary for the Chief Executive Officer of the
Corporation and shall perform such other duties and have such other powers as
may be prescribed by the Board of Directors or these Amended and Restated
Bylaws, all in accordance with basic policies as established by and subject to
the oversight of the Board of Directors. Raymond E. Schultz shall serve as
Chairman of the Board and Chief Executive Officer of the Corporation until his
retirement no later than December 31, 1999. Richard M. Kelleher shall succeed
Mr. Schultz as Chairman of the Board and Chief Executive Officer no later than
January 1, 2000, unless 75% or more of the members of the Board of Directors
vote otherwise.
 
    Section 5.  PRESIDENT AND CHIEF OPERATING OFFICER.  The President and Chief
Operating Officer shall supervise, coordinate and manage the Corporation's
business and activities and supervise, coordinate and manage its operating
expenses and capital allocation, shall have general authority to exercise all
the powers necessary for the President and Chief Operating Officer of the
Corporation and shall perform such other duties and have such other powers as
may be prescribed by the Board of Directors or these Amended and Restated
Bylaws, all in accordance with basic policies as established by and subject to
the oversight of the Board of Directors and the Chairman of the Board and Chief
Executive Officer. In the absence or disability of the Chairman of the Board and
Chief Executive Officer, the duties of the Chairman of the Board shall be
performed and the Chairman of the Board's authority may be exercised by the
President and Chief Operating Officer and, in the event the President and Chief
Operating Officer is absent or disabled, such duties shall be performed and such
authority may be exercised by a director designated for such purpose by the
Board of Directors. Unless 75% or more of the members of the Board of Directors
vote otherwise, Richard M. Kelleher shall continue to serve as President and
Chief Operating Officer until Raymond E. Schultz retires as Chairman of the
Board and Chief Executive Officer.
 
    Section 6.  VICE PRESIDENTS.  At the request of the President and Chief
Operating Officer or in the absence of both the Chairman of the Board and Chief
Executive Officer and the President and Chief Operating Officer, or in the event
of their inability or refusal to act , the Vice President or the Vice Presidents
if there is more than one (in the order designated by the Board of Directors)
shall perform the duties of the Chairman of the Board and Chief Executive
Officer and/or the President and Chief Operating Officer, and when so acting,
shall have all the powers of and be subject to all the restrictions upon such
offices (other than as Chairman of the Board). Each Vice President shall perform
such other
 
                                       6
<PAGE>
duties and have such other powers as the Board of Directors from time to time
may prescribe. If there be no Vice President, the Board of Directors shall
designate the officer of the Corporation who, in the absence of the Chairman of
the Board and Chief Executive Officer and the President and Chief Operating
Officer or in the event of the inability or refusal of such officers to act,
shall perform the duties of such offices (other than as Chairman of the Board),
and when so acting, shall have all the powers of and be subject to all the
restrictions upon such offices (other than as Chairman of the Board).
 
    Section 7.  SECRETARY.  The Secretary shall attend all meetings of the Board
of Directors and all meetings of stockholders and record all the proceedings
thereat in a book or books to be kept for that purpose; the Secretary shall also
perform like duties for the standing committees when required. The Secretary
shall give, or cause to be given, notice of all meetings of the stockholders and
special meetings of the Board of Directors, and shall perform such other duties
as may be prescribed by the Board of Directors, the Chairman of the Board and
Chief Executive Officer or the President and Chief Operating Officer, under
whose supervision the Secretary shall be. If the Secretary shall be unable or
shall refuse to cause to be given notice of all meetings of the stockholders and
special meetings of the Board of Directors, and if there be no Assistant
Secretary, then the Board of Directors, the Chairman of the Board and Chief
Executive Officer or the President and Chief Operating Officer may choose
another officer to cause such notice to be given. The Secretary shall have
custody of the seal of the Corporation and the Secretary or any Assistant
Secretary, if there be one, shall have authority to affix the same to any
instrument requiring it and when so affixed, it may be attested by the signature
of the Secretary or by the signature of any such Assistant Secretary. The Board
of Directors may give general authority to any other officer to affix the seal
of the Corporation and to attest the affixing by his signature. The Secretary
shall see that all books, reports, statements, certificates and other documents
and records required by law to be kept or filed are properly kept or filed, as
the case may be.
 
    Section 8.  TREASURER.  The Treasurer shall have the custody of the
corporate funds and securities and shall keep full and accurate accounts of
receipts and disbursements in books belonging to the Corporation and shall
deposit all moneys and other valuable effects in the name and to the credit of
the Corporation in such depositories as may be designated by the Board of
Directors. The Treasurer shall disburse the funds of the Corporation as may be
ordered by the Board of Directors, taking proper vouchers for such
disbursements, and shall render to the President and the Board of Directors, at
its regular meetings, or when the Board of Directors so requires, an account of
all his transactions as Treasurer and of the financial condition of the
Corporation. If required by the Board of Directors, the Treasurer shall give the
Corporation a bond in such sum and with such surety or sureties as shall be
satisfactory to the Board of Directors for the faithful performance of the
duties of his office and for the restoration to the Corporation, in case of his
death, resignation, retirement or removal from office, of all books, papers,
vouchers, money and other property of whatever kind in his possession or under
his control belonging to the Corporation.
 
    Section 9.  ASSISTANT SECRETARIES.  Except as may be otherwise provided in
these Bylaws, Assistant Secretaries, if there be any, shall perform such duties
and have such powers as from time to time may be assigned to them by the Board
of Directors, the Chairman of the Board and Chief Executive Officer, the
President and Chief Operating Officer, any Vice President, if there be one, or
the Secretary, and in the absence of the Secretary or in the event of his
disability or refusal to act, shall perform the duties of the Secretary, and
when so acting, shall have all the powers of and be subject to all the
restrictions upon the Secretary.
 
    Section 10.  ASSISTANT TREASURERS.  Assistant Treasurers, if there be any,
shall perform such duties and have such powers as from time to time may be
assigned to them by the Board of Directors, the Chairman of the Board and Chief
Executive Officer, the President and Chief Operating Officer, any Vice
President, if there be one, or the Treasurer, and in the absence of the
Treasurer or in the event of his disability or refusal to act, shall perform the
duties of the Treasurer, and when so acting, shall have all the powers of and be
subject to all the restrictions upon the Treasurer. If required by the Board of
Directors, an Assistant Treasurer shall give the Corporation a bond in such sum
and with such surety or sureties as shall be
 
                                       7
<PAGE>
satisfactory to the Board of Directors for the faithful performance of the
duties of his office and for the restoration to the Corporation, in case of his
death, resignation, retirement or removal from office, of all books, papers,
vouchers, money and other property of whatever kind in his possession or under
his control belonging to the Corporation.
 
    Section 11.  CONTROLLER.  The Controller shall establish and maintain the
accounting records of the Corporation in accordance with generally accepted
accounting principles applied on a consistent basis, maintain proper internal
control of the assets of the Corporation and shall perform such other duties as
the Board of Directors, the Chairman of the Board and Chief Executive Officer,
the President and Chief Operating Officer or any Vice President of the
Corporation may prescribe.
 
    Section 12.  OTHER OFFICERS.  Such other officers as the Board of Directors
may choose shall perform such duties and have such powers as from time to time
may be assigned to them by the Board of Directors. The Board of Directors may
delegate to any other officer of the Corporation the power to choose such other
officers and to prescribe their respective duties and powers. Initially and
until such time as Richard M. Kelleher succeeds Raymond E. Schultz as Chairman
of the Board and Chief Executive Officers of the Corporation, William L.
Perocchi shall serve as Executive Vice President and Chief Financial Officer of
the Corporation, unless 75% or more of the members of the Board of Directors
vote otherwise.
 
                                   ARTICLE V.
                                     STOCK
 
    Section 1.  FORM OF CERTIFICATES.  Every holder of stock in the Corporation
shall be entitled to have a certificate signed, in the name of the Corporation
(i) by the Chairman of the Board and Chief Executive Officer, the President and
Chief Operating Officer or a Vice President and (ii) by the Treasurer or an
Assistant Treasurer, or the Secretary or an Assistant Secretary of the
Corporation, certifying the number of shares owned by him in the Corporation.
 
    Section 2.  SIGNATURES.  Any or all of the signatures on the certificate may
be a facsimile, including, but not limited to, signatures of officers of the
Corporation and countersignatures of a transfer agent or registrar. In case any
officer, transfer agent or registrar who has signed or whose facsimile signature
has been placed upon a certificate shall have ceased to be such officer,
transfer agent or registrar before such certificate is issued, it may be issued
by the Corporation with the same effect as if he were such officer, transfer
agent or registrar at the date of issue.
 
    Section 3.  LOST CERTIFICATES.  The Board of Directors may direct a new
certificate to be issued in place of any certificate theretofore issued by the
Corporation alleged to have been lost, stolen or destroyed, upon the making of
an affidavit of that fact by the person claiming the certificate of stock to be
lost, stolen or destroyed. When authorizing such issue of a new certificate, the
Board of Directors may, in its discretion and as a condition precedent to the
issuance thereof, require the owner of such lost, stolen or destroyed
certificate, or his legal representative, to advertise the same in such manner
as the Board of Directors shall require and/or to give the Corporation a bond in
such sum as it may direct as indemnity against any claim that may be made
against the Corporation with respect to the certificate alleged to have been
lost, stolen or destroyed.
 
    Section 4.  TRANSFERS.  Stock of the Corporation shall be transferable in
the manner prescribed by law and in these Bylaws. Transfers of stock shall be
made on the books of the Corporation only by the person named in the certificate
or by his attorney lawfully constituted in writing and upon the surrender of the
certificate therefor, which shall be canceled before a new certificate shall be
issued.
 
    Section 5.  BOOK-ENTRY RECORDKEEPING  The Board of Directors may register
the stock of the Corporation in book-entry form without issuing certificates
representing such stock. Any transfers of stock registered in book-entry form
shall be made on the books of the Corporation only by the person named on the
books of the Corporation or by his attorney lawfully constituted in writing.
 
                                       8

<PAGE>

                                                                   EXHIBIT 4.1



                                 Parent Holding Corp.
                       (to be renamed Promus Hotel Corporation)
                                           

                                         and

                                           
                              First Union National Bank
                                           
                                   as Rights Agent



                                           
                                   Rights Agreement

                            Dated as of December ___, 1997


<PAGE>

                                   RIGHTS AGREEMENT

         Rights Agreement, dated as of December ___, 1997, between Parent
Holding Corp. (to be renamed Promus Hotel Corporation), a Delaware corporation
(the "COMPANY"), and First Union National Bank, a North Carolina corporation, as
Rights Agent (the "RIGHTS AGENT").

                                       RECITALS

         WHEREAS, on December ___, 1997, the Board of Directors of the 
Company adopted this Agreement, and has authorized and declared a dividend of 
one preferred share purchase right (a "RIGHT") for each Common Share (as 
defined in Section 1.6) of the Company issued at or after the Effective Time 
(the "Effective Time") of the mergers of wholly owned subsidiaries of the 
Company with and into Doubletree Corporation and Promus Hotel Corporation 
(together, the "Merger") and prior to the earliest of the Distribution Date 
and the Expiration Date (as such terms are defined in Sections 3.1 and 7.1), 
each Right initially representing the right to purchase one one-hundredth 
(subject to adjustment) of a share of Series A Junior Participating Preferred 
Stock (the "PREFERRED SHARES") of the Company having the rights, powers and 
preferences set forth in the form of Certificate of Designation attached 
hereto as Exhibit A (which will be filed with the Secretary of State of the 
State of Delaware following the Effective Time), upon the terms and subject 
to the conditions hereinafter set forth; PROVIDED, HOWEVER, that Rights may 
be issued with respect to Common Shares that shall become outstanding after 
the Distribution Date and prior to the Expiration Date in accordance with 
Section 22.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

         Section 1.  CERTAIN DEFINITIONS.  For purposes of this Agreement, the
following terms have the meanings indicated:

         1.1  "ACQUIRING PERSON" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates and Associates
(as such terms are hereinafter defined) of such Person, shall be the Beneficial
Owner (as such term is hereinafter defined) of 15% or more of the Common Shares
of the Company then outstanding but shall not include an Exempt Person (as such
term is hereinafter defined).  Notwithstanding the foregoing, no Person shall
become an "Acquiring Person" as the result of an acquisition of Common Shares by
the Company which, by reducing the number of shares outstanding, increases the
proportionate number of shares beneficially owned by such Person to 15% or more
of the Common Shares of the Company then outstanding; PROVIDED, HOWEVER, that if
a Person shall become the Beneficial Owner of 15% or more of the Common Shares
of the Company then outstanding solely by reason of share purchases by the
Company and shall, after such share purchases by the Company, become the
Beneficial Owner of one or more additional Common Shares of the Company, then
such Person shall be deemed to be an "Acquiring Person."  Notwithstanding the
foregoing, if the Board of Directors of the Company determines in good faith
that a Person who would otherwise be an "Acquiring Person," as defined pursuant
to the foregoing provisions of

                                       1

<PAGE>

this Section 1.1, has become such inadvertently, and without any intention of 
changing or influencing control of the Company, and such Person divests as 
promptly as practicable a sufficient number of Common Shares so that such 
Person would no longer be an Acquiring Person, as defined pursuant to the 
foregoing provisions of this Section 1.1, then such Person shall not be 
deemed to be or have become an "Acquiring Person" at any time for any 
purposes of this Agreement.  For all purposes of this Agreement, any 
calculation of the number of Common Shares outstanding at any particular 
time, including for purposes of determining the particular percentage of such 
outstanding Common Shares of which any Person is the Beneficial Owner, shall 
be made in accordance with the last sentence of Rule 13d-3(d)(1)(i) of the 
General Rules and Regulations under the Securities Exchange Act of 1934, as 
amended (the "EXCHANGE ACT"), as in effect on the date hereof.

         1.2  "AFFILIATE" and "ASSOCIATE" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations, under
the Exchange Act, as in effect on the date of this Agreement.

         1.3  A Person shall be deemed the "BENEFICIAL OWNER" of and shall be
deemed to "BENEFICIALLY OWN" any securities:

              (i)     which such Person or any of such Person's Affiliates
    or Associates beneficially owns, directly or indirectly (as determined
    pursuant to Rule 13d-3 of the General Rules and Regulations under the
    Exchange Act as in effect on the date of this Agreement);

              (ii)    which such Person or any of such Person's Affiliates
    or Associates, directly or indirectly, has (A) the right to acquire
    (whether such right is exercisable immediately, or only after the
    passage of time, compliance with regulatory requirements, fulfillment
    of a condition or otherwise) pursuant to any agreement, arrangement or
    understanding, whether or not in writing (other than customary
    agreements with and between underwriters and selling group members
    with respect to a bona fide public offering of securities), or upon
    the exercise of conversion rights, exchange rights, rights (other than
    the Rights), warrants or options, or otherwise; PROVIDED, HOWEVER,
    that a Person shall not be deemed the Beneficial Owner of, or to
    beneficially own, (w) securities tendered pursuant to a tender or
    exchange offer made by or on behalf of such Person or any of such
    Person's Affiliates or Associates until such tendered securities are
    accepted for purchase or exchange, (x) securities which such Person
    has a right to acquire upon the exercise of Rights at any time prior
    to the time that any Person becomes an Acquiring Person, (y)
    securities issuable upon the exercise of Rights from and after the
    time that any Person becomes an Acquiring Person if such Rights were
    acquired by such Person or any of such Person's Affiliates or
    Associates prior to the Distribution Date or pursuant to Section 3.1
    or Section 22 ("ORIGINAL RIGHTS") or pursuant to Section 11.9 or
    Section 11.15 with respect to an adjustment to Original Rights or (z)
    securities which such Person or

                                       2

<PAGE>

    any of such Person's Affiliates or Associates may acquire, does or do 
    acquire or may be deemed to have the right to acquire, pursuant to any 
    merger or other acquisition agreement between the Company and such Person 
    (or one or more of his Affiliates or Associates) if such agreement has 
    been approved by the Board of Directors of the Company prior to such 
    Person's becoming an Acquiring Person; or (B) the right to vote pursuant 
    to any agreement, arrangement or understanding (whether or not in 
    writing); PROVIDED, HOWEVER, that a Person shall not be deemed the 
    Beneficial Owner of, or to beneficially own, any security under this 
    clause (B) if the agreement, arrangement or understanding to vote such 
    security (1) arises solely from a revocable proxy or consent given to 
    such Person in response to a public proxy or consent solicitation made 
    pursuant to, and in accordance with, the applicable rules and regulations 
    of the Exchange Act and (2) is not also then reportable on Schedule 13D 
    under the Exchange Act (or any comparable or successor report); or

              (iii)   which are beneficially owned, directly or
    indirectly, by any other Person (or any Affiliate or Associate
    thereof) with respect to which such Person or any of such Person's
    Affiliates or Associates has any agreement, arrangement or
    understanding (other than customary agreements with and between
    underwriters and selling group members with respect to a bona fide
    public offering of securities), whether or not in writing, for the
    purpose of acquiring, holding, voting (except pursuant to a revocable
    proxy as described in the proviso to Section 1.3(ii)(B)) or disposing
    of any securities of the Company;

PROVIDED, HOWEVER, that no Person who is an officer, director or employee of an
Exempt Person shall be deemed, solely by reason of such Person's status or
authority as such, to be the "Beneficial Owner" of, to have "Beneficial
Ownership" of or to "beneficially own" any securities that are "beneficially
owned" (as defined in this Section 1.3), including, without limitation, in a
fiduciary capacity, by an Exempt Person or by any other such officer, director
or employee of an Exempt Person.

         1.4   "BUSINESS DAY" shall mean any day other than a Saturday,
Sunday, or a day on which banking institutions in the State of New York are
authorized or obligated by law or executive order to close.

         1.5   "CLOSE OF BUSINESS" on any given date shall mean 5:00 p.m., New
York time, on such date; PROVIDED, HOWEVER, that if such date is not a Business
Day it shall mean 5:00 p.m., New York time, on the next succeeding Business Day.

         1.6   "COMMON SHARES" when used with reference to the Company shall
mean the shares of common stock, par value $.01 per share, of the Company. 
"Common Shares" when used with reference to any Person other than the Company
shall mean the capital stock with the greatest voting power, or the equity
securities or other equity interest having power to control or direct the
management, of such other Person or, if such Person is a Subsidiary of 

                                       3

<PAGE>

another Person, the Person or Persons which ultimately control such 
first-mentioned Person, and which has issued and outstanding such capital 
stock, equity securities or equity interest.

         1.7   "CONTINUING DIRECTOR" shall mean (i) any member of the Board of
Directors of the Company, while such Person is a member of the Board, who is not
an Acquiring Person, or an Affiliate or Associate of an Acquiring Person, or an
employee, director, representative, nominee or designee of any Acquiring Person
or of any such Affiliate or Associate, and was a member of the Board prior to
the time that any Person becomes an Acquiring Person or (ii) any Person (during
such period in which such Person is a member of the Board) who, after the time
that any Person becomes an Acquiring Person, becomes a member of the Board and
who is not an Acquiring Person, or an Affiliate of Associate of an Acquiring
Person, or an employee, director, representative, nominee or designee of an
Acquiring Person or of any such Affiliate or Associate, if such Person's
nomination for election or election to the Board is recommended or approved by a
majority of the Continuing Directors.

         1.8   "EXEMPT PERSON" shall mean the Company, any Subsidiary (as such
term is hereinafter defined) of the Company or any employee benefit plan of the
Company or of any Subsidiary of the Company or any entity or trustee holding
shares of capital stock of the Company for or pursuant to the terms of any such
plan, in its capacity as an agent or trustee for any such plan.

         1.9   "PERSON" shall mean any individual, partnership, joint venture,
limited liability company, firm, corporation, unallocated association, trust or
other entity, and shall include any successor (by merger or otherwise) of such
entity.

         1.10  "SHARES ACQUISITION DATE" shall mean the first date of public
announcement (which, for purposes of this definition, shall include, without
limitation, the filing of a report pursuant to Section 13(d) of the Exchange Act
or pursuant to a comparable successor statute) by the Company or an Acquiring
Person that an Acquiring Person has become such or that discloses information
which reveals the existence of an Acquiring Person or such earlier date as a
majority of the Board of Directors shall become aware of the existence of an
Acquiring Person.

         1.11  "SUBSIDIARY" of any Person shall mean any corporation or other
entity of which a majority of the voting power of the voting equity securities
or equity interests is owned, of record or beneficially, directly or indirectly,
by such Person.

         1.12  A "TRIGGER EVENT" shall be deemed to have occurred upon any
Person becoming an Acquiring Person.

         1.13  The following terms shall have the meanings defined for such
terms in the Sections set forth below: 

    TERM                                            SECTION

                                       4

<PAGE>

    Adjustment Shares                                11.1.2 
    common stock equivalent                          11.1.3
    Company                                        Recitals
    current per share market price                     11.4
    Current Value                                    11.1.3
    Distribution Date                                   3.1
    Effective Time                                 Recitals
    equivalent preferred stock                         11.2
    Exchange Act                                        1.1
    Exchange Consideration                               27
    Existing Holder                                     1.1
    Expiration Date                                     7.1
    Final Expiration Date                               7.1
    Merger                                         Recitals
    Nasdaq                                                9
    Original Rights                                     1.3
    Preferred Shares                               Recitals
    Principal Party                                    13.2
    Purchase Price                                        4
    Redemption Date                                     7.1
    Redemption Price                                   23.1
    Right                                          Recitals
    Right Certificate                                   3.1
    Rights Agent                                   Recitals
    Security                                           11.4
    Spread                                           11.1.3
    Substitution Period                              11.1.3
    Summary of Rights                                   3.2
    Trading Day                                        11.4

         Section 2.  APPOINTMENT OF RIGHTS AGENT.  The Company hereby appoints
the Rights Agent to act as agent for the Company and the holders of the Rights
(who, in accordance with Section 3, shall prior to the Distribution Date also be
the holders of the Common Shares) in accordance with the terms and conditions
hereof, and the Rights Agent hereby accepts such appointment.  The Company may
from time to time appoint such co-Rights Agents as it may deem necessary or
desirable.  In the event the Company appoints one or more co-Rights Agents, the
respective duties of the Rights Agent and any co-Rights Agent shall be as the
Company shall determine.  Contemporaneously with such appointment, if any, the
Company shall notify the Rights Agent thereof.

         Section 3.  ISSUANCE OF RIGHT CERTIFICATES.

         3.1  RIGHTS EVIDENCED BY SHARE CERTIFICATES.  Until the earlier of (i)
the tenth day after the Shares Acquisition Date or (ii) the tenth business day
after the date of the commencement of, or first public announcement of the
intent of any Person (other than the 

                                       5

<PAGE>

Company, any Subsidiary of the Company, any employee benefit plan of the 
Company or of any Subsidiary of the Company or any entity holding shares of 
capital stock of the Company for or pursuant to the terms of any such plan, 
in its capacity as an agent or trustee for any such plan) to commence, a 
tender or exchange offer the consummation of which would result in any Person 
becoming the Beneficial Owner of Common Shares aggregating 15% or more of the 
then outstanding Common Shares of the Company (the earlier of (i) and (ii) 
being herein referred to as the "DISTRIBUTION DATE"), (x) the Rights (unless 
earlier expired, redeemed or terminated) will be evidenced (subject to the 
provisions of Section 3.2) by the certificates for Common Shares registered 
in the names of the holders thereof (which certificates for Common Shares 
shall also be deemed to be Right Certificates) and not by separate 
certificates, and (y) the Rights (and the right to receive certificates 
therefor) will be transferable only in connection with the transfer of the 
underlying Common Shares.  The preceding sentence notwithstanding, prior to 
the occurrence of a Distribution Date specified as a result of an event 
described in clause (ii) (or such later Distribution Date as the Board of 
Directors of the Company may select pursuant to this sentence), the Board of 
Directors may postpone, one or more times, the Distribution Date which would 
occur as a result of an event described in clause (ii) beyond the date set 
forth in such clause (ii).  Nothing herein shall permit such a postponement 
of a Distribution Date after a Person becomes an Acquiring Person.  As soon 
as practicable after the Distribution Date, the Company will prepare and 
execute, the Rights Agent will countersign and the Company (or, if requested, 
Rights Agent) will send, by first-class, postage-prepaid mail, to each record 
holder of Common Shares as of the close of business on the Distribution Date 
(other than any Acquiring Person or any Associate or Affiliate of an 
Acquiring Person), at the address of such holder shown on the records of the 
Company, one or more certificates for Rights, in substantially the form of 
Exhibit B hereto (a "RIGHT CERTIFICATE"), evidencing one Right (subject to 
adjustment as provided herein) for each Common Share so held.  As of the 
Distribution Date, the Rights will be evidenced solely by such Right 
Certificates.

         3.2  SUMMARY OF RIGHTS.  As soon as practicable after the Effective 
Time, the Company will send or cause to be sent a copy of a Summary of Rights 
to Purchase Preferred Shares, in substantially the form attached hereto as 
Exhibit C (the "SUMMARY OF RIGHTS"), by first-class, postage-prepaid mail, to 
each person entitled to receive Common Shares in the Merger at the address of 
such holder shown on the records of Doubletree or Promus, as the case may be.

         3.3  CERTIFICATES.  Certificates for Common Shares which become 
outstanding (whether upon issuance in connection with the Merger, issuance 
out of authorized but unissued Common

                                       6

<PAGE>

Shares, issuance out of treasury or transfer or exchange of outstanding 
Common Shares) at or after the Effective Time but prior to the earliest of 
the Distribution Date or the Expiration Date, shall have impressed, printed, 
stamped, written or otherwise affixed onto them the following legend:

    This certificate also evidences and entitles the holder hereof to
    certain rights as set forth in an Agreement between Promus Hotel
    Corporation (the "Company") and First Union National Bank, as Rights
    Agent, dated as of December ___, 1997, as the same may be amended from
    time to time (the "Agreement"), the terms of which are hereby
    incorporated herein by reference and a copy of which is on file at the
    principal executive offices of the Company.  Under certain
    circumstances, as set forth in the Agreement, such Rights will be
    evidenced by separate certificates and will no longer be evidenced by
    this certificate.  The Company will mail to the holder of this
    certificate a copy of the Agreement without charge after receipt of a
    written request therefor.  AS DESCRIBED IN THE AGREEMENT, RIGHTS WHICH
    ARE OWNED BY, TRANSFERRED TO OR HAVE BEEN OWNED BY ACQUIRING PERSONS
    OR ASSOCIATES OR AFFILIATES THEREOF (AS DEFINED IN THE AGREEMENT)
    SHALL BECOME NULL AND VOID AND WILL NO LONGER BE TRANSFERABLE.

With respect to such certificates containing the foregoing legend, until the 
Distribution Date (or the earlier Expiration Date), the Rights associated 
with the Common Shares represented by such certificates shall be evidenced by 
such certificates alone, and the surrender for transfer of any such 
certificates, except as otherwise provided herein, shall also constitute the 
transfer of the Rights associated with the Common Shares represented thereby. 
In the event that the Company purchases or acquires any Common Shares after 
the Effective Time but prior to the Distribution Date, any Rights associated 
with such Common Shares shall be deemed canceled and retired so that the 
Company shall not be entitled to exercise any Rights associated with the 
Common Shares which are no longer outstanding.

         Notwithstanding this Section 3.3, the omission of a legend shall not
affect the enforceability of any part of this Agreement or the rights of any
holder of the Rights.

         Section 4.  FORM OF RIGHT CERTIFICATES.  The Right Certificates (and
the forms of election to purchase shares, certification and assignment to be
printed on the reverse thereof) shall be substantially the same as Exhibit B
hereto and may have such marks of identification or designation and such
legends, summaries or endorsements printed thereon as the Company may deem
appropriate and as are not inconsistent with the provisions of this Agreement,
or as may be required to comply with any applicable law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any stock
exchange or trading system on which the Rights may from time to time be listed
or quoted, or to conform to usage.  Subject to the terms and conditions hereof,
the Right Certificates, whenever issued, shall be dated as of the Record Date,
and shall show the date of countersignature by the Rights Agent, and on their
face shall entitle the holders thereof to purchase such number of one
one-hundredths of a Preferred Share as shall be set forth therein at the price
per one one-hundredth of a Preferred Share set forth therein (the

                                       7

<PAGE>

"PURCHASE PRICE"), but the number of such one one-hundredths of a Preferred 
Share and the Purchase Price shall be subject to adjustment as provided 
herein.

         Section 5.  COUNTERSIGNATURE AND REGISTRATION. The Right 
Certificates shall be executed on behalf of the Company by its Chairman of 
the Board of Directors, the Chief Executive Officer, President or any Vice 
President, either manually or by facsimile signature, and shall have affixed 
thereto the Company's seal or a facsimile thereof which shall be attested by 
the Secretary or any Assistant Secretary of the Company, either manually or 
by facsimile signature. The Right Certificates shall be countersigned, either 
manually or by fascimile signature, by an authorized signatory of the Rights 
Agent, but it shall not be necessary for the same signatory to countersign 
all of the Right Certificates hereunder.  No Right Certificate shall be valid 
for any purpose unless so countersigned.  In case any officer of the Company 
who shall have signed any of the Right Certificates shall cease to be such 
officer of the Company before countersignature by the Rights Agent and 
issuance and delivery by the Company, such Right Certificates, nevertheless, 
may be countersigned by the Rights Agent, and issued and delivered by the 
Company with the same force and effect as though the Person who signed such 
Right Certificates had not ceased to be such officer of the Company; and any 
Right Certificate may be signed on behalf of the Company by any Person who, 
at the actual date of the execution of such Right Certificate, shall be a 
proper officer of the Company to sign such Right Certificate, although at the 
date of the execution of this Agreement any such person was not such an 
officer.

         Following the Distribution Date, the Rights Agent will keep or cause 
to be kept, at its principal office, books for registration and transfer of 
the Right Certificates issued hereunder.  Such books shall show the names and 
addresses of the respective holders of the Right Certificates, the number of 
Rights evidenced on its face by each of the Right Certificates, the 
certificate number of each of the Right Certificates and the date of each of 
the Right Certificates.

         Section 6.  TRANSFER, SPLIT UP, COMBINATION AND EXCHANGE OF RIGHT 
CERTIFICATES; MUTILATED, DESTROYED, LOST OR STOLEN RIGHT CERTIFICATES.  
Subject to the provisions of Section 7.5, Section 11.1.2 and Section 14, at 
any time after the close of business on the Distribution Date, and at or 
prior to the close of business on the Expiration Date, any Right Certificate 
or Right Certificates (other than Right Certificates representing Rights that 
have become void pursuant to Section 11.1.2 or that have been exchanged 
pursuant to Section 27) may be transferred, split up or combined or exchanged 
for another Right Certificate or Right Certificates, entitling the registered 
holder to purchase a like number of one one-hundredths of a Preferred Share 
as the Right Certificate or Right Certificates surrendered then entitled such 
holder to purchase.  Any registered holder desiring to transfer, split up or 
combine or exchange any Right Certificate shall make such request in writing 
delivered to the Rights Agent, and shall surrender, together with any 
required form of assignment and certificate duly completed, the Right 
Certificate or Right Certificates to be transferred, split up or combined or 
exchanged at the office of the Rights Agent designated for such purpose.  
Neither the Rights Agent nor the Company shall be obligated to take any 
action whatsoever with respect to the transfer of any such surrendered Right 
Certificate or Right Certificates until the registered holder shall have 
completed and signed the certificate

                                       8

<PAGE>

contained in the form of assignment on the reverse side of such Right 
Certificate or Right Certificates and shall have provided such additional 
evidence of the identity of the Beneficial Owner (or former Beneficial Owner) 
or Affiliates or Associates thereof as the Company shall reasonably request.  
Thereupon the Rights Agent shall countersign and deliver to the person 
entitled thereto a Right Certificate or Right Certificates, as the case may 
be, as so requested.  The Company may require payment from the holders of 
Right Certificates of a sum sufficient to cover any tax or governmental 
charge that may be imposed in connection with any transfer, split up or 
combination or exchange of such Right Certificates.

         Subject to the provisions of Section 11.1.2 , at any time after the 
Distribution Date and prior to the Expiration Date, upon receipt by the 
Company and the Rights Agent of evidence reasonably satisfactory to them of 
the loss, theft, destruction or mutilation of a Right Certificate, and, in 
case of loss, theft or destruction, of indemnity or security reasonably 
satisfactory to them, and, at the Company's request, reimbursement to the 
Company and the Rights Agent of all reasonable expenses incidental thereto, 
and upon surrender to the Rights Agent and cancellation of the Right 
Certificate if mutilated, the Company will make and deliver a new Right 
Certificate of like tenor to the Rights Agent for countersignature and 
delivery to the registered owner in lieu of the Right Certificate so lost, 
stolen, destroyed or mutilated.

         Section 7.  EXERCISE OF RIGHTS; PURCHASE PRICE; EXPIRATION DATE OF
RIGHTS.

         7.1  EXERCISE OF RIGHTS.  Subject to Section 11.1.2 and except as 
otherwise provided herein, the registered holder of any Right Certificate may 
exercise the Rights evidenced thereby in whole or in part at any time after 
the Distribution Date upon surrender of the Right Certificate, with the form 
of election to purchase and certification on the reverse side thereof duly 
executed, to the Rights Agent at the office of the Rights Agent designated 
for such purpose, together with payment of the aggregate Purchase Price for 
the total number of one one-hundredths of a Preferred Share (or other 
securities, cash or other assets) as to which the Rights are exercised, at or 
prior to the time (the "EXPIRATION DATE") that is the earliest of (i) the 
close of business on December, 2007 (the "FINAL EXPIRATION DATE"), (ii) the 
time at which the Rights are redeemed as provided in Section 23 (the 
"REDEMPTION DATE"), (iii) the closing of any merger or other acquisition 
transaction involving the Company pursuant to an agreement of the type 
described in Sections 1.3(ii)(A)(z) and 13.3, at which time the Rights are 
deemed terminated, or (iv) the time at which the Rights are exchanged as 
provided in Section 27.

         7.2  PURCHASE .  The Purchase Price for each one one-hundredth of a 
Preferred Share pursuant to the exercise of a Right shall be initially 
$_____, shall be subject to adjustment from time to time as provided in 
Sections 11, 13 and 26 and shall be payable in lawful money of the United 
States of America in accordance with Section 7.3.

         7.3  PAYMENT PROCEDURES.  Upon receipt of a Right Certificate 
representing exercisable Rights, with the form of election to purchase and 
certification duly executed, accompanied by payment of the aggregate Purchase 
Price for the shares to be purchased and an amount equal to any applicable 
transfer tax required to be paid by the holder of such Right

                                       9

<PAGE>

Certificate in accordance with Section 9, in cash or by certified or 
cashier's check or money order payable to the order of the Company, the 
Rights Agent shall thereupon promptly (i)(A) requisition from any transfer 
agent of the Preferred Shares (or make available, if the Rights Agent is the 
transfer agent) certificates for the number of Preferred Shares to be 
purchased and the Company hereby irrevocably authorizes its transfer agent to 
comply with all such requests, or (B) if the Company shall have elected to 
deposit the total number of Preferred Shares issuable upon exercise of the 
Rights hereunder with a depository agent, requisition from the depositary 
agent depositary receipts representing such number of one one-hundredths of a 
Preferred Share as are to be purchased (in which case certificates for the 
Preferred Shares represented by such receipts shall be deposited by the 
transfer agent with the depositary agent) and the Company hereby directs the 
depositary agent to comply with all such requests, (ii) when appropriate, 
requisition from the Company the amount of cash to be paid in lieu of the 
issuance of fractional shares in accordance with Section 14, (iii) promptly 
after receipt of such certificates or depositary receipts, cause the same to 
be delivered to or upon the order of the registered holder of such Right 
Certificate, registered in such name or names as may be designated by such 
holder and (iv) when appropriate, after receipt, promptly deliver such cash 
to or upon the order of the registered holder of such Right Certificate.  In 
the event that the Company is obligated to issue other securities of the 
Company, pay cash and/or distribute other property pursuant to Section 
11.1.3, the Company will make all arrangements necessary so that such other 
securities, cash and/or other property are available for distribution by the 
Rights Agent, if and when appropriate.

         7.4  PARTIAL EXERCISE.  In case the registered holder of any Right 
Certificate shall exercise less than all the Rights evidenced thereby, a new 
Right Certificate evidencing Rights equivalent to the Rights remaining 
unexercised shall be issued by the Rights Agent and delivered to the 
registered holder of such Right Certificate or to his duly authorized 
assigns, subject to the provisions of Section 14.

         7.5  FULL INFORMATION CONCERNING OWNERSHIP.  Notwithstanding 
anything in this Agreement to the contrary, neither the Rights Agent nor the 
Company shall be obligated to undertake any action with respect to a 
registered holder of Rights upon the occurrence of any purported exercise as 
set forth in this Section 7 unless the certificate contained in the form of 
election to purchase set forth on the reverse side of the Right Certificate 
surrendered for such exercise shall have been duly completed and signed by 
the registered holder thereof and the Company shall have been provided with 
such additional evidence of the identity of the Beneficial Owner (or former 
Beneficial Owner) or Affiliates or Associates thereof as the Company shall 
reasonably request.

         Section 8.  CANCELLATION AND DESTRUCTION OF RIGHT CERTIFICATES.  All 
Right Certificates surrendered for the purpose of exercise, transfer, split 
up, combination or exchange shall, if surrendered to the Company or to any of 
its agents, be delivered to the Rights Agent for cancellation or in canceled 
form, or, if surrendered to the Rights Agent, shall be canceled by it, and no 
Right Certificates shall be issued in lieu thereof except as expressly 
permitted by any of the provisions of this Agreement.  The Company shall 
deliver to the Rights Agent for cancellation and retirement, and the Rights 
Agent shall so cancel and retire, any other Right

                                       10

<PAGE>

Certificate purchased or acquired by the Company otherwise than upon the 
exercise thereof.  The Rights Agent shall deliver all canceled Right 
Certificates to the Company, or shall, at the written request of the Company, 
destroy such canceled Right Certificates, and in such case shall deliver a 
certificate of destruction thereof to the Company.

         Section 9.  RESERVATION AND AVAILABILITY OF CAPITAL STOCK.  The 
Company covenants and agrees that from and after the Distribution Date it 
will cause to be reserved and kept available out of its authorized and 
unissued Preferred Shares (and, following the occurrence of a Trigger Event, 
out of its authorized and unissued Common Shares or other securities or out 
of its shares held in its treasury) the number of Preferred Shares (and, 
following the occurrence of a Trigger Event, Common Shares and/or other 
securities) that will be sufficient to permit the exercise in full of all 
outstanding Rights.

         So long as the Preferred Shares (and, following the occurrence of a 
Trigger Event, Common Shares and/or other securities) issuable upon the 
exercise of Rights may be listed on any national securities exchange or 
traded in the over-the-counter market and quoted on the National Association 
of Securities Dealers, Inc. Automated Quotation System ("NASDAQ") (including 
the National Market or Small Cap Market), the Company shall use its best 
efforts to cause, from and after such time as the Rights become exercisable, 
all shares reserved for such issuance to be listed or admitted to trading on 
such exchange or quoted on Nasdaq upon official notice of issuance upon such 
exercise.

         The Company covenants and agrees that it will take all such action 
as may be necessary to ensure that all Preferred Shares (and, following the 
occurrence of a Trigger Event, Common Shares  and/or other securities) 
delivered upon exercise of Rights shall, at the time of delivery of the 
certificates for such shares (subject to payment of the Purchase Price), be 
duly and validly authorized and issued and fully paid and nonassessable 
shares.

         From and after such time as the Rights become exercisable, the Company
shall use its best efforts, if then necessary to permit the issuance of
Preferred Shares upon the exercise of Rights, to register and qualify such
Preferred Shares under the Securities Act and any applicable state securities or
"Blue Sky" laws (to the extent exemptions therefrom are not available), cause
such registration statement and qualifications to become effective as soon as
possible after such filing and keep such registration and qualifications
effective until the earlier of the date as of which the Rights are no longer
exercisable for such securities and the Expiration Date.  The Company may
temporarily suspend, for a period of time not to exceed 90 days, the
exercisability of the Rights in order to prepare and file a registration
statement under the Securities Act and permit it to become effective.  Upon any
such suspension, the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended, as well as a public
announcement at such time as the suspension is no longer in effect. 
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction unless the requisite qualification
in such jurisdiction shall have been obtained and until a registration statement
under the Securities Act (if required) shall have been declared effective.

                                       11

<PAGE>

         The Company further covenants and agrees that it will pay when due 
and payable any and all Federal and state transfer taxes and charges which 
may be payable in respect of the issuance or delivery of the Right 
Certificates or of any Preferred Shares (or Common Shares and/or other 
securities, as the case may be) upon the exercise of Rights.  The Company 
shall not, however, be required to pay any transfer tax which may be payable 
in respect of any transfer or delivery of Right Certificates to a person 
other than, or the issuance or delivery of certificates for the Preferred 
Shares (or Common Shares and/or other securities, as the case may be) in a 
name other than that of, the registered holder of the Right Certificate 
evidencing Rights surrendered for exercise or to issue or deliver any 
certificates for Preferred Shares (or Common Shares and/or other securities, 
as the case may be) in a name other than that of the registered holder upon 
the exercise of any Rights until any such tax shall have been paid (any such 
tax being payable by the holder of such Right Certificate at the time of 
surrender) or until it has been established to the Company's satisfaction 
that no such tax is due.

         Section 10.  PREFERRED SHARES RECORD DATE.  Each person in whose 
name any certificate for Preferred Shares (or Common Shares and/or other 
securities, as the case may be) is issued upon the exercise of Rights shall 
for all purposes be deemed to have become the holder of record of the 
Preferred Shares (or Common Shares and/or other securities, as the case may 
be) represented thereby on, and such certificate shall be dated, the date 
upon which the Right Certificate evidencing such Rights was duly surrendered 
and payment of the Purchase Price (and any applicable transfer taxes) was 
made; PROVIDED, HOWEVER, that if the date of such surrender and payment is a 
date upon which the Preferred Shares (or Common Shares and/or other 
securities, as the case may be) transfer books of the Company are closed, 
such person shall be deemed to have become the record holder of such shares 
(fractional or otherwise) on, and such certificate shall be dated, the next 
succeeding Business Day on which the Preferred Shares (or Common Shares 
and/or other securities, as the case may be) transfer books of the Company 
are open.  Prior to the exercise of the Rights evidenced thereby, the holder 
of a Right Certificate shall not be entitled to any rights of a holder of 
Preferred Shares for which the Rights shall be exercisable, including, 
without limitation, the right to vote or to receive dividends or other 
distributions, and shall not be entitled to receive any notice of any 
proceedings of the Company, except as provided herein.

         Section 11.  ADJUSTMENT OF PURCHASE PRICE, NUMBER OF SHARES OR 
NUMBER OF RIGHTS.  The Purchase Price, the number of Preferred Shares or 
other securities or property purchasable upon exercise of each Right and the 
number of Rights outstanding are subject to adjustment from time to time as 
provided in this Section 11.

         11.1  POST-EXECUTION EVENTS.

         11.1.1  CORPORATE DIVIDENDS, RECLASSIFICATIONS, ETC.  In the event 
the Company shall at any time after the date of this Agreement (A) declare 
and pay a dividend on the Preferred Shares payable in Preferred Shares, (B) 
subdivide the outstanding Preferred Shares, (C) combine the outstanding 
Preferred Shares into a smaller number of Preferred Shares or (D) issue any

                                       12

<PAGE>

shares of its capital stock in a reclassification of the Preferred Shares 
(including any such reclassification in connection with a consolidation or 
merger in which the Company is the continuing or surviving corporation), 
except as otherwise provided in this Section 11.1, the Purchase Price in 
effect at the time of the record date for such dividend or of the effective 
date of such subdivision, combination or reclassification, and the number and 
kind of shares of capital stock issuable on such date, shall be 
proportionately adjusted so that the holder of any Right exercised after such 
time shall be entitled to receive the aggregate number and kind of shares of 
capital stock which, if such Right had been exercised immediately prior to 
such date and at a time when the Preferred Shares transfer books of the 
Company were open, he would have owned upon such exercise and been entitled 
to receive by virtue of such dividend, subdivision, combination or 
reclassification; PROVIDED, HOWEVER, that in no event shall the consideration 
to be paid upon the exercise of one Right be less than the aggregate par 
value of the shares of capital stock of the Company issuable upon exercise of 
one Right.  If an event occurs which would require an adjustment under both 
Section 11.1.1 and Section 11.1.2, the adjustment provided for in this 
Section 11.1.1 shall be in addition to, and shall be made prior to, the 
adjustment required pursuant to, Section 11.1.2.

         11.1.2  ACQUIRING PERSON EVENTS; TRIGGERING EVENTS.  Subject to
Sections 23.1 and 27 of this Agreement, in the event

              (A)  that any Acquiring Person or any Associate or Affiliate of
    any Acquiring Person, at any time after the date of this Agreement,
    directly or indirectly, shall merge into the Company or otherwise combine
    with the Company and the Company shall be the continuing or surviving
    corporation of such merger or combination and the Common Shares of the
    Company shall remain outstanding and not be changed into or exchanged for
    stock or other securities of any other Person or the Company or cash or any
    other property, or

              (B)  that a Trigger Event occurs,

then, from and after the first occurrence of such event, each holder of a 
Right, except as provided below, shall thereafter have a right to receive, 
upon exercise thereof at a price per Right equal to the then current Purchase 
Price multiplied by the number of one one-hundredths of a Preferred Share for 
which a Right is then exercisable (without giving effect to this Section 
11.1.2), in accordance with the terms of this Agreement and in lieu of 
Preferred Shares, such number of Common Shares as shall equal the result 
obtained by (x) multiplying the then current Purchase Price by the then 
number of one one-hundredths of a Preferred Share for which a Right is then 
exercisable (without giving effect to this Section 11.1.2) and (y) dividing 
that product by 50% of the current per share market price of the Common 
Shares (determined pursuant to Section 11.4) on the first of the date of the 
occurrence of, or the date of the first public announcement of, one of the 
events listed above in this Section 11.1.2 (the "ADJUSTMENT SHARES"); 
PROVIDED, HOWEVER, that if the transaction that would otherwise give rise to 
the foregoing adjustment is also subject to the provisions of Section 13, 
then only the provisions of Section 13 shall apply and no adjustment shall be 
made pursuant to this Section 11.1.2; PROVIDED, FURTHER,

                                       13

<PAGE>

that nothing contained in this Section 11.1.2 shall limit or otherwise 
diminish the power of the Board of Directors to postpone the Distribution 
Date pursuant to Section 3.1; PROVIDED, FURTHER, that the Purchase Price and 
the number of Adjustment Shares shall thereafter be subject to further 
adjustment as appropriate in accordance with Section 11.6.  Notwithstanding 
the foregoing, upon the occurrence of either of the events listed above in 
this Section 11.1.2, any Rights that are or were acquired or beneficially 
owned by (1) any Acquiring Person or any Associate or Affiliate thereof, (2) 
a transferee of any Acquiring Person (or of any such Associate or Affiliate) 
who becomes a transferee after the Acquiring Person becomes such, or (3) a 
transferee of any Acquiring Person (or of any such Associate or Affiliate) 
who becomes a transferee prior to or concurrently with the Acquiring Person 
becoming such and receives such Rights pursuant to either (A) a transfer 
(whether or not for consideration) from the Acquiring Person to holders of 
equity interests in such Acquiring Person or to any Person with whom the 
Acquiring Person has any continuing agreement, arrangement or understanding 
regarding the transferred Rights or (B) a transfer which the Board of 
Directors of the Company has determined is part of a plan, arrangement or 
understanding which has as a primary purpose or effect avoidance of this 
Section 11.1.2, and subsequent transferees, shall become void without any 
further action, and any holder (whether or not such holder is an Acquiring 
Person or an Associate or Affiliate of an Acquiring Person) of such Rights 
shall thereafter have no right to exercise such Rights under any provision of 
this Agreement or otherwise.  The Company shall not enter into any 
transaction of the type described in this Section 11.1.2 if at the time of 
such transaction there are any rights, warrants, instruments or securities 
outstanding or any arrangements which, as a result of the consummation of 
such transaction, would eliminate or substantially diminish the benefits 
intended to be afforded by the Rights.  From and after the Trigger Event, no 
Right Certificate shall be issued pursuant to Section 3 or Section 6 that 
represents Rights that are or have become void pursuant to the provisions of 
this paragraph, and any Right Certificate delivered to the Rights Agent that 
represents Rights that are or have become void pursuant to the provisions of 
this paragraph shall be canceled.

         The Company shall use all reasonable efforts to ensure that the 
provisions of this Section 11.1.2 are complied with, but shall have no 
liability to any holder of Right Certificates or other Person as a result of 
its failure to make any determinations with respect to any Acquiring Person 
or its Affiliates, Associates or transferees hereunder.

         11.1.3  INSUFFICIENT SHARES.  The Company may at its option 
substitute for a Common Share issuable upon the exercise of Rights in 
accordance with the foregoing Section 11.1.2 a number of Preferred Shares or 
fraction thereof such that the current per share market price of one 
Preferred Share multiplied by such number or fraction is equal to the current 
per share market price of one Common Share.  In the event that upon the 
occurrence of one or more of the events listed in Section 11.1.2 above there 
shall not be sufficient Common Shares authorized but unissued, or held by the 
Company as treasury shares, to permit the exercise in full of the Rights in 
accordance with the foregoing Section 11.1.2, the Company shall take all such 
action as may be necessary to authorize additional Common Shares for issuance 
upon exercise of the Rights, PROVIDED, HOWEVER, that if the Company 
determines that it is unable to cause the authorization of a sufficient 
number of additional Common Shares, then, in the event the Rights

                                       14

<PAGE>

become exercisable, the Company, with respect to each Right and to the extent 
necessary and permitted by applicable law and any agreements or instruments 
in effect on the date hereof to which it is a party, shall:  (A) determine 
the excess of (1) the value of the Adjustment Shares issuable upon the 
exercise of a Right (the "CURRENT VALUE"), over (2) the Purchase Price (such 
excess, the "SPREAD") and (B) with respect to each Right (other than Rights 
which have become void pursuant to Section 11.1.2), make adequate provision 
to substitute for the Adjustment Shares, upon payment of the applicable 
Purchase Price, (1) cash, (2) a reduction in the Purchase Price, (3) 
Preferred Shares or other equity securities of the Company (including, 
without limitation, shares, or fractions of shares, of preferred stock which, 
by virtue of having dividend, voting and liquidation rights substantially 
comparable to those of the Common Shares, the Board of Directors of the 
Company has deemed in good faith to have substantially the same value as 
Common Shares) (each such share of preferred stock or fractions of shares of 
preferred stock constituting a "COMMON STOCK EQUIVALENT")), (4) debt 
securities of the Company, (5) other assets or (6) any combination of the 
foregoing having an aggregate value equal to the Current Value, where such 
aggregate value has been determined by the Board of Directors of the Company 
based upon the advice of a nationally recognized investment banking firm 
selected in good faith by the Board of Directors of the Company; PROVIDED, 
HOWEVER, that if the Company shall not have made adequate provision to 
deliver value pursuant to clause (B) above within thirty (30) days following 
the first occurrence of one of the events listed in Section 11.1.2 above, 
then the Company shall be obligated to deliver, to the extent necessary and 
permitted by applicable law and any agreements or instruments in effect on 
the date hereof to which it is a party, upon the surrender for exercise of a 
Right and without requiring payment of the Purchase Price, Common Shares (to 
the extent available) and then, if necessary, such number or fractions of 
Preferred Shares (to the extent available) and then, if necessary, cash, 
which shares and/or cash have an aggregate value equal to the Spread.  If the 
Board of Directors of the Company shall determine in good faith that it is 
unlikely that sufficient additional Common Shares could be authorized for 
issuance upon exercise in full of the Rights, the thirty (30) day period set 
forth above may be extended and re-extended to the extent necessary, but not 
more than ninety (90) days following the first occurrence of one of the 
events listed in Section 11.1.2 above, in order that the Company may seek 
stockholder approval for the authorization of such additional shares (such 
period as may be extended, the "SUBSTITUTION PERIOD").  To the extent that 
the Company determines that some action need be taken pursuant to the second 
and/or third sentences of this Section 11.1.3, the Company (x) shall provide 
that such action shall apply uniformly to all outstanding Rights, and (y) may 
suspend the exercisability of the Rights until the expiration of the 
Substitution Period in order to seek any authorization of additional shares 
and/or to decide the appropriate form of distribution to be made pursuant to 
such first sentence and to determine the value thereof.  In the event of any 
such suspension, the Company shall issue a public announcement stating that 
the exercisability of the Rights has been temporarily suspended as well as a 
public announcement at such time as the suspension is no longer in effect.  
For purposes of this Section 11.1.3, the value of a Common Share shall be the 
current per share market price (as determined pursuant to Section 11.4) on 
the date of the first occurrence of one of the events listed in Section 
11.1.2 above and the value of any "common stock equivalent" shall be deemed 
to have the same value as the Common Shares on such date.  The Board of 
Directors of the Company may, but shall not be required to, establish 
procedures to allocate the right to receive

                                       15

<PAGE>

Common Shares upon the exercise of the Rights among holders of Rights 
pursuant to this Section 11.1.3.

         11.2 DILUTIVE RIGHTS OFFERING.  In case the Company shall fix a 
record date for the issuance of rights, options or warrants to all holders of 
Preferred Shares entitling them (for a period expiring within 45 calendar 
days after such record date) to subscribe for or purchase Preferred Shares 
(or securities having the same rights, privileges and preferences as the 
Preferred Shares ("EQUIVALENT PREFERRED STOCK")) or securities convertible 
into Preferred Shares or equivalent preferred stock at a price per Preferred 
Share or per share of equivalent preferred stock (or having a conversion or 
exercise price per share, if a security convertible into or exercisable for 
Preferred Shares or equivalent preferred stock) less than the current per 
share market price of the Preferred Shares (as determined pursuant to Section 
11.4) on such record date, the Purchase Price to be in effect after such 
record date shall be determined by multiplying the Purchase Price in effect 
immediately prior to such record date by a fraction, the numerator of which 
shall be the number of Preferred Shares and shares of equivalent preferred 
stock outstanding on such record date plus the number of Preferred Shares and 
shares of equivalent preferred stock which the aggregate offering price of 
the total number of Preferred Shares and/or shares of equivalent preferred 
stock to be offered (and/or the aggregate initial conversion price of the 
convertible securities so to be offered) would purchase at such current per 
share market price and the denominator of which shall be the number of 
Preferred Shares and shares of equivalent preferred stock outstanding on such 
record date plus the number of additional Preferred Shares and/or shares of 
equivalent preferred stock to be offered for subscription or purchase (or 
into which the convertible securities so to be offered are initially 
convertible); PROVIDED, HOWEVER, that in no event shall the consideration to 
be paid upon the exercise of one Right be less than the aggregate par value 
of the shares of capital stock of the Company issuable upon exercise of one 
Right.  In case such subscription price may be paid in a consideration part 
or all of which shall be in a form other than cash, the value of such 
consideration shall be as determined in good faith by the Board of Directors 
of the Company, whose determination shall be described in a statement filed 
with the Rights Agent and shall be binding on the Rights Agent and the 
holders of the Rights.  Preferred Shares and shares of equivalent preferred 
stock owned by or held for the account of the Company or any Subsidiary of 
the Company shall not be deemed outstanding for the purpose of any such 
computation.  Such adjustments shall be made successively whenever such a 
record date is fixed; and in the event that such rights or warrants are not 
so issued, the Purchase Price shall be adjusted to be the Purchase Price 
which would then be in effect if such record date had not been fixed.

         11.3  DISTRIBUTIONS.  In case the Company shall fix a record date 
for the making of a distribution to all holders of the Preferred Shares 
(including any such distribution made in connection with a consolidation or 
merger in which the Company is the continuing or surviving corporation) of 
evidences of indebtedness, cash, securities or assets (other than a regular 
periodic cash dividend at a rate not in excess of 125% of the rate of the 
last regular periodic cash dividend theretofore paid or, in case regular 
periodic cash dividends have not theretofore been paid, at a rate not in 
excess of 50% of the average net income per share of the Company for the four 
quarters ended immediately prior to the payment of such dividend, or a 
dividend payable in

                                       16

<PAGE>

Preferred Shares (which dividend, for purposes of this Agreement, shall be 
subject to the provisions of Section 11.1.1(A))) or convertible securities, 
or subscription rights or warrants (excluding those referred to in Section 
11.2), the Purchase Price to be in effect after such record date shall be 
determined by multiplying the Purchase Price in effect immediately prior to 
such record date by a fraction, the numerator of which shall be the current 
per share market price of the Preferred Shares (as determined pursuant to 
Section 11.4) on such record date, less the fair market value (as determined 
in good faith by the Board of Directors of the Company, whose determination 
shall be described in a statement filed with the Rights Agent) of the portion 
of the cash, assets, securities or evidences of indebtedness so to be 
distributed or of such subscription rights or warrants applicable to one 
Preferred Share and the denominator of which shall be such current per share 
market price of the Preferred Shares (as determined pursuant to Section 
11.4); PROVIDED, HOWEVER, that in no event shall the consideration to be paid 
upon the exercise of one Right be less than the aggregate par value of the 
shares of capital stock of the Company to be issued upon exercise of one 
Right.  Such adjustments shall be made successively whenever such a record 
date is fixed; and in the event that such distribution is not so made, the 
Purchase Price shall again be adjusted to be the Purchase Price which would 
then be in effect if such record date had not been fixed.

         11.4  CURRENT PER SHARE MARKET VALUE.

         11.4.1    GENERAL.  For the purpose of any computation hereunder, the
"CURRENT PER SHARE MARKET PRICE" of any security (a "SECURITY" for the purpose
of this Section 11.4.1) on any date shall be deemed to be the average of the
daily closing prices per share of such Security for the thirty (30) consecutive
Trading Days (as such term is hereinafter defined) immediately prior to such
date; PROVIDED, HOWEVER, that in the event that the current per share market
price of the Security is determined during any period following the announcement
by the issuer of such Security of (i) a dividend or distribution on such
Security payable in shares of such Security or securities convertible into such
shares or (ii) any subdivision, combination or reclassification of such
Security, and prior to the expiration of thirty (30) Trading Days after the
ex-dividend date for such dividend or distribution, or the record date for such
subdivision, combination or reclassification, then, and in each such case, the
"current per share market price" shall be appropriately adjusted to reflect the
current market price per share equivalent of such Security.  The closing price
for each day shall be the last sale price, regular way, or, in case no such sale
takes place on such day, the average of the closing bid and asked prices,
regular way, in either case as reported in the principal consolidated
transaction reporting system with respect to securities listed or admitted to
trading on the New York Stock Exchange or, if the Security is not listed or
admitted to trading on the New York Stock Exchange, as reported in the principal
consolidated transaction reporting system with respect to securities listed on
the principal national securities exchange on which the Security is listed or
admitted to trading or, if the Security is not listed or admitted to trading on
any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market,
as reported by Nasdaq or such other system then in use, or, if on any such date
the Security is not quoted by any such organization, the average of the closing
bid and asked prices as furnished by a professional market maker making a market
in the Security selected by the Board of Directors

                                      17

<PAGE>

of the Company.  If on any such date no such market maker is making a market 
in the Security, the fair value of the Security on such date as determined in 
good faith by the Board of Directors of the Company shall be used.  The term 
"TRADING DAY" shall mean a day on which the principal national securities 
exchange on which the Security is listed or admitted to trading is open for 
the transaction of business or, if the Security is not listed or admitted to 
trading on any national securities exchange, a Business Day.  If the Security 
is not publicly held or not so listed or traded, "current per share market 
price" shall mean the fair value per share as determined in good faith by the 
Board of Directors of the Company or, if at the time of such determination 
there is an Acquiring Person, by a majority of the Continuing Directors then 
in office, or if there are no Continuing Directors, by a nationally 
recognized investment banking firm selected by the Board of Directors, which 
shall have the duty to make such determination in a reasonable and objective 
manner, whose determination shall be described in a statement filed with the 
Rights Agent and shall be conclusive for all purposes.

         11.4.2  PREFERRED SHARES.  Notwithstanding Section 11.4.1, for the
purpose of any computation hereunder, the "current per share market price" of
the Preferred Shares shall be determined in the same manner as set forth above
in Section 11.4.1 (other than the last sentence thereof).  If the current per
share market price of the Preferred Shares cannot be determined in the manner
described in Section 11.4.1, the "current per share market price" of the
Preferred Shares shall be conclusively deemed to be an amount equal to 100 (as
such number may be appropriately adjusted for such events as stock splits, stock
dividends and recapitalizations with respect to the Common Shares occurring
after the date of this Agreement) multiplied by the current per share market
price of the Common Shares (as determined pursuant to Section 11.4.1).  If
neither the Common Shares nor the Preferred Shares is publicly held or so listed
or traded, "current per share market price" of the Preferred Shares shall mean
the fair value per share as determined in good faith by the Board of Directors
of the Company, or, if at the time of such determination there is an Acquiring
Person, by a majority of the Continuing Directors then in office, or if there
are no Continuing Directors, by a nationally recognized investment banking firm
selected by the Board of Directors of the Company, which shall have the duty to
make such determination in a reasonable and objective manner, which
determination shall be described in a statement filed with the Rights Agent and
shall be conclusive for all purposes.  For purposes of this Agreement, the
"current per share market price" of one one-hundredth of a Preferred Share shall
be equal to the "current per share market price" of one Preferred Share divided
by 100.

         11.5  INSIGNIFICANT CHANGES.  No adjustment in the Purchase Price
shall be required unless such adjustment would require an increase or decrease
of at least 1% in such price.  Any adjustments which by reason of this Section
11.5 are not required to be made shall be carried forward and taken into account
in any subsequent adjustment.  All calculations under this Section 11 shall be
made to the nearest cent or to the nearest one-hundred thousandth of a Preferred
Share or the nearest one-hundredth of a Common Share or other share or security,
as the case may be.

                                      18

<PAGE>

         11.6  SHARES OTHER THAN PREFERRED SHARES.  If as a result of an
adjustment made pursuant to Section 11.1, the holder of any Right thereafter
exercised shall become entitled to receive any shares of capital stock of the
Company other than Preferred Shares, thereafter the number of such other shares
so receivable upon exercise of any Right shall be subject to adjustment from
time to time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Preferred Shares contained in Sections 11.1
through 11.3, inclusive, and the provisions of Sections 7, 9, 10, 13 and 14 with
respect to the Preferred Shares shall apply on like terms to any such other
shares.

         11.7  RIGHTS ISSUED PRIOR TO ADJUSTMENT.  All Rights originally issued
by the Company subsequent to any adjustment made to the Purchase Price hereunder
shall evidence the right to purchase, at the adjusted Purchase Price, the number
of one one-hundredths of a Preferred Share purchasable from time to time
hereunder upon exercise of the Rights, all subject to further adjustment as
provided herein.

         11.8  EFFECT OF ADJUSTMENTS.  Unless the Company shall have exercised
its election as provided in Section 11.9, upon each adjustment of the Purchase
Price as a result of the calculations made in Sections 11.2 and 11.3, each Right
outstanding immediately prior to the making of such adjustment shall thereafter
evidence the right to purchase, at the adjusted Purchase Price, that number of
one one-hundredths of a Preferred Share (calculated to the nearest one-hundred
thousandth of a Preferred Share) obtained by (i) multiplying (x) the number of
one one-hundredths of a Preferred Share covered by a Right immediately prior to
this adjustment by (y) the Purchase Price in effect immediately prior to such
adjustment of the Purchase Price and (ii) dividing the product so obtained by
the Purchase Price in effect immediately after such adjustment of the Purchase
Price.

         11.9  ADJUSTMENT IN NUMBER OF RIGHTS.  The Company may elect on or
after the date of any adjustment of the Purchase Price to adjust the number of
Rights, in substitution for any adjustment in the number of one one-hundredths
of a Preferred Share issuable upon the exercise of a Right.  Each of the Rights
outstanding after such adjustment of the number of Rights shall be exercisable
for the number of one one-hundredths of a Preferred Share for which a Right was
exercisable immediately prior to such adjustment.  Each Right held of record
prior to such adjustment of the number of Rights shall become that number of
Rights (calculated to the nearest one-hundredth) obtained by dividing the
Purchase Price in effect immediately prior to adjustment of the Purchase Price
by the Purchase Price in effect immediately after adjustment of the Purchase
Price.  The Company shall make a public announcement of its election to adjust
the number of Rights, indicating the record date for the adjustment, and, if
known at the time, the amount of the adjustment to be made.  This record date
may be the date on which the Purchase Price is adjusted or any day thereafter,
but, if the Right Certificates have been issued, shall be at least ten (10) days
later than the date of the public announcement.  If Right Certificates have been
issued, upon each adjustment of the number of Rights pursuant to this Section
11.9, the Company may, as promptly as practicable, cause to be distributed to
holders of record of Right Certificates on such record date Right Certificates
evidencing, subject to Section 14, the additional Rights to which such holders
shall be entitled as a result of such adjustment, or, at the

                                      19

<PAGE>

option of the Company, shall cause to be distributed to such holders of 
record in substitution and replacement for the Right Certificates held by 
such holders prior to the date of adjustment, and upon surrender thereof, if 
required by the Company, new Right Certificates evidencing all the Rights to 
which such holders shall be entitled after such adjustment.  Right 
Certificates so to be distributed shall be issued, executed and countersigned 
in the manner provided for herein (and may bear, at the option of the 
Company, the adjusted Purchase Price) and shall be registered in the names of 
the holders of record of Right Certificates on the record date specified in 
the public announcement.

         11.10  RIGHT CERTIFICATES UNCHANGED.  Irrespective of any adjustment
or change in the Purchase Price or the number of one one-hundredths of a
Preferred Share issuable upon the exercise of the Rights, the Right Certificates
theretofore and thereafter issued may continue to express the Purchase Price per
share and the number of one one-hundredths of a Preferred Share which were
expressed in the initial Right Certificates issued hereunder.

         11.11  PAR VALUE LIMITATIONS.  Before taking any action that would
cause an adjustment reducing the Purchase Price below one one-hundredth of the
then par value, if any, of the Preferred Shares or other shares of capital stock
issuable upon exercise of the Rights, the Company shall take any corporate
action which may, in the opinion of its counsel, be necessary in order that the
Company may validly and legally issue fully paid and nonassessable Preferred
Shares or other such shares at such adjusted Purchase Price.

         11.12  DEFERRED ISSUANCE.  In any case in which this Section 11 shall
require that an adjustment in the Purchase Price be made effective as of a
record date for a specified event, the Company may elect to defer until the
occurrence of such event the issuing to the holder of any Right exercised after
such record date of the Preferred Shares and other capital stock or securities
of the Company, if any, issuable upon such exercise over and above the Preferred
Shares and other capital stock or securities of the Company, if any, issuable
upon such exercise on the basis of the Purchase Price in effect prior to such
adjustment; PROVIDED, HOWEVER, that the Company shall deliver to such holder a
due bill or other appropriate instrument evidencing such holder's right to
receive such additional shares upon the occurrence of the event requiring such
adjustment.

         11.13  REDUCTION IN PURCHASE PRICE.  Anything in this Section 11 to
the contrary notwithstanding, the Company shall be entitled to make such
reductions in the Purchase Price, in addition to those adjustments expressly
required by this Section 11, as and to the extent that it in its sole discretion
shall determine to be advisable in order that any consolidation or subdivision
of the Preferred Shares, issuance wholly for cash of any of the Preferred Shares
at less than the current market price, issuance wholly for cash of Preferred
Shares or securities which by their terms are convertible into or exchangeable
for Preferred Shares, dividends on Preferred Shares payable in Preferred Shares
or issuance of rights, options or warrants referred to hereinabove in this
Section 11, hereafter made by the Company to holders of its Preferred Shares
shall not be taxable to such stockholders.

                                     20

<PAGE>

         11.14  COMPANY NOT TO DIMINISH BENEFITS OF RIGHTS.  The Company
covenants and agrees that after the earlier of the Shares Acquisition Date or
Distribution Date it will not, except as permitted by Section 23, Section 26 or
Section 27, take (or permit any Subsidiary to take) any action if at the time
such action is taken it is reasonably foreseeable that such action will
substantially diminish or otherwise eliminate the benefits intended to be
afforded by the Rights.

         11.15  ADJUSTMENT OF RIGHTS ASSOCIATED WITH COMMON SHARES. 
Notwithstanding anything contained in this Agreement to the contrary, in the
event that the Company shall at any time after the date hereof and prior to the
Distribution Date (i) declare or pay any dividend on the outstanding Common
Shares payable in Common Shares, (ii) effect a subdivision or consolidation of
the outstanding Common Shares (by reclassification or otherwise than by the
payment of dividends payable in Common Shares), or (iii) combine the outstanding
Common Shares into a greater or lesser number of Common Shares, then in any such
case, the number of Rights associated with each Common Share then outstanding,
or issued or delivered thereafter but prior to the Distribution Date, shall be
proportionately adjusted so that the number of Rights thereafter associated with
each Common Share following any such event shall equal the result obtained by
multiplying the number of Rights associated with each Common Share immediately
prior to such event by a fraction, the numerator of which shall be the total
number of Common Shares outstanding immediately prior to the occurrence of the
event and the denominator of which shall be the total number of Common Shares
outstanding immediately following the occurrence of such event.  The adjustments
provided for in this Section 11.15 shall be made successively whenever such a
dividend is declared or paid or such a subdivision, combination or consolidation
is effected.

         Section 12.  CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF
SHARES.  Whenever an adjustment is made as provided in Sections 11 or 13, the
Company shall (a) promptly prepare a certificate setting forth such adjustment,
and a brief statement of the facts accounting for such adjustment, (b) promptly
file with the Rights Agent and with each transfer agent for the Common Shares or
the Preferred Shares a copy of such certificate and (c) mail a brief summary
thereof to each holder of a Right Certificate in accordance with Section 25. 
The Rights Agent shall be fully protected in relying on any such certificate and
on any adjustment therein contained and shall not be deemed to have knowledge of
any such adjustment unless and until it shall have received such certificate.

         Section 13.  CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR
EARNING POWER.

         13.1  CERTAIN TRANSACTIONS.  In the event that, from and after the
first occurrence of a Trigger Event, directly or indirectly, (A) the Company
shall consolidate with, or merge with and into, any other Person and the Company
shall not be the continuing or surviving corporation, (B) any Person shall
consolidate with the Company, or merge with and into the Company and the Company
shall be the continuing or surviving corporation of such merger and, in
connection with such merger, all or part of the Common Shares shall be changed
into or

                                      21

<PAGE>

exchanged for stock or other securities of the Company or any other
Person or cash or any other property, or (C) the Company shall sell, exchange,
mortgage or otherwise transfer (or one or more of its Subsidiaries shall sell,
exchange, mortgage or otherwise transfer), in one or more transactions, assets
or earning power aggregating 50% or more of the assets or earning power of the
Company and its Subsidiaries (taken as a whole) to any other Person or Persons,
then, and in each such case, proper provision shall be made so that (i) each
holder of a Right (except as provided in Section 11.1.2 and as otherwise
provided herein) shall thereafter have the right to receive, upon the exercise
thereof at a price per Right equal to the then current Purchase Price multiplied
by the number of one one-hundredths of a Preferred Share for which a Right was
exercisable immediately prior to the first occurrence of a Trigger Event (as
subsequently adjusted pursuant to Sections 11.1.1, 11.2, 11.3, 11.8, 11.9 and
11.12), in accordance with the terms of this Agreement and in lieu of Preferred
Shares or Common Shares, such number of validly authorized and issued, fully
paid, non-assessable and freely tradeable Common Shares of the Principal Party
(as such term is hereinafter defined) not subject to any liens, encumbrances,
rights of first refusal or other advise claims, as shall be equal to the result
obtained by (x) multiplying the then current Purchase Price by the number of one
one-hundredths of a Preferred Share for which a Right was exercisable
immediately prior to the first occurrence of a Trigger Event (as subsequently
adjusted pursuant to Sections 11.1.1, 11.2, 11.3, 11.8, 11.9 and 11.12) and (y)
dividing that product by 50% of the then current per share market price of the
Common Shares of such Principal Party (determined pursuant to Section 11.4) on
the date of consummation of such consolidation, merger, sale or transfer;
PROVIDED, that the price per Right so payable and the number of Common Shares of
such Principal Party so purchasable shall thereafter be adjusted in accordance
with Section 11.6 by reason of such subsequent events covered thereby occurring
in respect of such Principal Party after the occurrence of such consolidation,
merger, sale or transfer; (ii) such Principal Party shall thereafter be liable
for, and shall assume, by virtue of such consolidation, merger, sale or
transfer, all the obligations and duties of the Company pursuant to this
Agreement; (iii) the term "Company" shall thereafter be deemed to refer to such
Principal Party; and (iv) such Principal Party shall take such steps (including,
but not limited to, the reservation of a sufficient number of its Common Shares
in accordance with Section 9) in connection with such consummation as may be
necessary to assure that the provisions hereof shall thereafter be applicable,
as nearly as reasonably may be, in relation to its Common Shares thereafter
deliverable upon the exercise of the Rights; PROVIDED that, upon the subsequent
occurrence of any consolidation, merger, sale or transfer of assets or other
extraordinary transaction in respect of such Principal Party, each holder of a
Right shall thereupon be entitled to receive, upon exercise of a Right and
payment of the Purchase Price as provided in this Section 13.1, such cash,
shares, rights, warrants and other property which such holder would have been
entitled to receive had such holder, at the time of such transaction, owned the
Common Shares of the Principal Party receivable upon the exercise of a Right
pursuant to this Section 13.1, and such Principal Party shall take such steps
(including, but not limited to, reservation of shares of stock) as may be
necessary to permit the subsequent exercise of the Rights in accordance with the
terms hereof for such cash, shares, rights, warrants and other property.  The
Company shall not enter into any transaction of the kind referred to in this
Section 13 if at the time of such transaction there are any rights, warrants,
instruments or securities outstanding or any agreements or arrangements which,
as a result of the

                                     22

<PAGE>

consummation of such transaction, would eliminate or substantially diminish 
the benefits intended to be afforded by the Rights.  The Company shall not 
consummate any such consolidation, merger, sale or transfer unless prior 
thereto the Company and such Principal Party shall have executed and 
delivered to the Rights Agent a supplemental agreement confirming that the 
requirements of this Section 13.1 and Section 13.2 shall promptly be 
performed in accordance with their terms and that such consolidation, merger, 
sale or transfer of assets shall not result in a default by the Principal 
Party under this Agreement as the same shall have been assumed by the 
Principal Party pursuant to this Section 13.1 and Section 13.2 and providing 
that, as soon as practicable after executing such agreement pursuant to this 
Section 13, the Principal Party will:

         (1)  prepare and file a registration statement under the Securities
Act, if necessary, with respect to the Rights and the securities purchasable
upon exercise of the Rights on an appropriate form, use its best efforts to
cause such registration statement to become effective as soon as practicable
after such filing and use its best efforts to cause such registration statement
to remain effective (with a prospectus at all times meeting the requirements of
the Securities Act) until the Expiration Date and similarly comply with
applicable state securities laws;

         (2)  use its best efforts, if the Common Shares of the Principal Party
shall be listed or admitted to trading on the New York Stock Exchange or on
another national securities exchange, to list or admit to trading (or continue
the listing of) the Rights and the securities purchasable upon exercise of the
Rights on the New York Stock Exchange or such securities exchange, or, if the
Common Shares of the Principal Party shall not be listed or admitted to trading
on the New York Stock Exchange or a national securities exchange, to cause the
Rights and the securities receivable upon exercise of the Rights to be
authorized for quotation on Nasdaq or on such other system then in use;

         (3)  deliver to holders of the Rights historical financial statements
for the Principal Party which comply in all respects with the requirements for
registration on Form 10 (or any successor form) under the Exchange Act; and 

         (4)  obtain waivers of any rights of first refusal or preemptive
rights in respect of the Common Shares of the Principal Party subject to
purchase upon exercise of outstanding Rights.

         In case the Principal Party has provision in any of its authorized
securities or in its certificate of incorporation or by-laws or other instrument
governing its corporate affairs, which provision would have the effect of (i)
causing such Principal Party to issue (other than to holders of Rights pursuant
to this Section 13), in connection with, or as a consequence of, the
consummation of a transaction referred to in this Section 13, Common Shares or
common stock equivalents of such Principal Party at less than the then current
market price per share thereof (determined pursuant to Section 11.4) or
securities exercisable for, or convertible into, Common Shares or common stock
equivalents of such Principal Party at less than such then

                                      23

<PAGE>

current market price, or (ii) providing for any special payment, taxes or 
similar provision in connection with the issuance of the Common Shares of 
such Principal Party pursuant to the provision of Section 13, then, in such 
event, the Company hereby agrees with each holder of Rights that it shall not 
consummate any such transaction unless prior thereto the Company and such 
Principal Party shall have executed and delivered to the Rights Agent a 
supplemental agreement providing that the provision in question of such 
Principal Party shall have been canceled, waived or amended, or that the 
authorized securities shall be redeemed, so that the applicable provision 
will have no effect in connection with, or as a consequence of, the 
consummation of the proposed transaction.

         The Company covenants and agrees that it shall not, at any time after
the Trigger Event, enter into any transaction of the type described in clauses
(A) through (C) of this Section 13.1 if (i) at the time of or immediately after
such consolidation, merger, sale, transfer or other transaction there are any
rights, warrants or other instruments or securities outstanding or agreements in
effect which would substantially diminish or otherwise eliminate the benefits
intended to be afforded by the Rights, (ii) prior to, simultaneously with or
immediately after such consolidation, merger, sale, transfer or other
transaction, the stockholders of the Person who constitutes, or would
constitute, the Principal Party for purposes of Section 13.2 shall have received
a distribution of Rights previously owned by such Person or any of its
Affiliates or Associates or (iii) the form or nature of organization of the
Principal Party would preclude or limit the exercisability of the Rights.  The
provisions of this Section 13 shall similarly apply to successive mergers or
consolidations or sales or other transfers.

    13.2 PRINCIPAL PARTY.  "Principal Party" shall mean: 

         (i)  in the case of any transaction described in (A) or (B) of the
first sentence of Section 13.1:  (i) the Person that is the issuer of the
securities into which the Common Shares are converted in such merger or
consolidation, or, if there is more than one such issuer, the issuer the Common
Shares of which have the greatest aggregate market value of shares outstanding,
or (ii) if no securities are so issued, (x) the Person that is the other party
to the merger, if such Person survives said merger, or, if there is more than
one such Person, the Person the Common Shares of which have the greatest
aggregate market value of shares outstanding or (y) if the Person that is the
other party to the merger does not survive the merger, the Person that does
survive the merger (including the Company if it survives) or (z) the Person
resulting from the consolidation; and

         (ii) in the case of any transaction described in (C) of the first
sentence in Section 13.1, the Person that is the party receiving the greatest
portion of the assets or earning power transferred pursuant to such transaction
or transactions, or, if each Person that is a party to such transaction or
transactions receives the same portion of the assets or earning power so
transferred or if the Person receiving the greatest portion of the assets or
earning power cannot be determined, whichever of such Persons is the issuer of
Common Shares having the greatest aggregate market value of shares outstanding;
PROVIDED, HOWEVER, that in 

                                      24
<PAGE>

any such case described in the foregoing clause (A) or (B) of this Section 
13.2, if the Common Shares of such Person is not at such time or has not been 
continuously over the preceding 12-month period registered under Section 12 
of the Exchange Act, then (1) if such Person is a direct or indirect 
Subsidiary of another Person the Common Shares of which is and has been so 
registered, the term "Principal Party" shall refer to such other Person, or 
(2) if such Person is a Subsidiary, directly or indirectly, of more than one 
Person, the Common Shares of all of which is and has been so registered, the 
term "Principal Party" shall refer to whichever of such Persons is the issuer 
of Common Shares having the greatest aggregate market value of shares 
outstanding, or (3) if such Person is owned, directly or indirectly, by a 
joint venture formed by two or more Persons that are not owned, directly or 
indirectly, by the same Person, the rules set forth in clauses (1) and (2) 
above shall apply to each of the owners having an interest in the venture as 
if the Person owned by the joint venture was a Subsidiary of both or all of 
such joint venturers, and the Principal Party in each such case shall bear 
the obligations set forth in this Section 13 in the same ratio as its 
interest in such Person bears to the total of such interests.

         13.3 APPROVED ACQUISITIONS.  Notwithstanding anything contained 
herein to the contrary, in the event of any merger or other acquisition 
transaction involving the Company pursuant to a merger or other acquisition 
agreement between the Company and any Person (or one or more of such Person's 
Affiliates or Associates) which agreement has been approved by the Board of 
Directors of the Company prior to any Person becoming an Acquiring Person, 
this Agreement and the rights of holders of Rights hereunder shall be 
terminated in accordance with Section 7.1.

         Section 14.  FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

         14.1  CASH IN LIEU OF FRACTIONAL RIGHTS.  The Company shall not be
required to issue fractions of Rights or to distribute Right Certificates which
evidence fractional Rights (except prior to the Distribution Date in accordance
with Section 11.15).  In lieu of such fractional Rights, there shall be paid to
the registered holders of the Right Certificates with regard to which such
fractional Rights would otherwise be issuable an amount in cash equal to the
same fraction of the current market value of a whole Right.  For the purposes of
this Section 14.1, the current market value of a whole Right shall be the
closing price of the Rights for the Trading Day immediately prior to the date on
which such fractional Rights would have been otherwise issuable.  The closing
price for any day shall be the last sale price, regular way, or, in case no such
sale takes place on such day, the average of the closing bid and asked prices,
regular way, in either case as reported in the principal consolidated
transaction reporting system with respect to securities listed or admitted to
trading on the New York Stock Exchange or, if the Rights are not listed or
admitted to trading on the New York Stock Exchange, as reported in the principal
consolidated transaction reporting system with respect to securities listed on
the principal national securities exchange on which the Rights are listed or
admitted to trading or, if the Rights are not listed or admitted to trading on
any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market,
as reported by Nasdaq or such other system then in use or, if on any such 


                                       25

<PAGE>

date the Rights are not quoted by any such organization, the average of the 
closing bid and asked prices as furnished by a professional market maker 
making a market in the Rights selected by the Board of Directors of the 
Company.  If on any such date no such market maker is making a market in the 
Rights, the fair value of the Rights on such date as determined in good faith 
by the Board of Directors of the Company shall be used.

         14.2  CASH IN LIEU OF FRACTIONAL PREFERRED SHARES.  The Company 
shall not be required to issue fractions of Preferred Shares (other than 
fractions which are integral multiples of one one-hundredth of a Preferred 
Share) upon exercise or exchange of the Rights or to distribute certificates 
which evidence fractional Preferred Shares (other than fractions which are 
integral multiples of one one-hundredth of a Preferred Share).  Fractions of 
Preferred Shares in integral multiples of one one-hundredth of a Preferred 
Share may, at the election of the Company, be evidenced by depositary 
receipts, pursuant to an appropriate agreement between the Company and a 
depositary selected by it; PROVIDED, that such agreement shall provide that 
the holders of such depositary receipts shall have all the rights, privileges 
and preferences to which they are entitled as beneficial owners of the 
Preferred Shares represented by such depositary receipts.  In lieu of 
fractional Preferred Shares that are not integral multiples of one 
one-hundredth of a Preferred Share, the Company shall pay to the registered 
holders of Right Certificates at the time such Rights are exercised or 
exchanged as herein provided an amount in cash equal to the same fraction of 
the current per share market price of one Preferred Share (as determined in 
accordance with Section 14.1) for the Trading Day immediately prior to the 
date of such exercise or exchange.

         14.3 CASH IN LIEU OF FRACTIONAL COMMON SHARES.  The Company shall 
not be required to issue fractions of Common Shares or to distribute 
certificates which evidence fractional Common Shares upon the exercise or 
exchange of Rights. In lieu of such fractional Common Shares, the Company 
shall pay to the registered holders of the Right Certificates with regard to 
which such fractional Common Shares would otherwise be issuable an amount in 
cash equal to the same fraction of the current market value of a whole Common 
Share (as determined in accordance with Section 14.1) for the Trading Day 
immediately prior to the date of such exercise or exchange.

         14.4 WAIVER OF RIGHT TO RECEIVE FRACTIONAL RIGHTS OR SHARES.  The 
holder of a Right by the acceptance of the Rights expressly waives his right 
to receive any fractional Rights or any fractional shares upon exercise or 
exchange of a Right, except as permitted by this Section 14.

         Section 15.  RIGHTS OF ACTION.  All rights of action in respect of
this Agreement, except the rights of action given to the Rights Agent under
Section 18, are vested in the respective registered holders of the Right
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Shares); and any registered holder of any Right Certificate (or, prior to
the Distribution Date, of the Common Shares), without the consent of the Rights
Agent or of the holder of any other Right Certificate (or, prior to the
Distribution Date, of the Common Shares), may, in his own behalf and for his own
benefit, enforce this Agreement, and 


                                       26

<PAGE>

may institute and maintain any suit, action or proceeding against the Company 
to enforce this Agreement, or otherwise enforce or act in respect of his 
right to exercise the Rights evidenced by such Right Certificate in the 
manner provided in such Right Certificate and in this Agreement.  Without 
limiting the foregoing or any remedies available to the holders of Rights, it 
is specifically acknowledged that the holders of Rights would not have an 
adequate remedy at law for any breach of this Agreement and shall be entitled 
to specific performance of the obligations under, and injunctive relief 
against actual or threatened violations of, the obligations of any Person 
(including, without limitation, the Company) subject to this Agreement.

         Section 16.   AGREEMENT OF RIGHT HOLDERS.  Every holder of a Right by
accepting the same consents and agrees with the Company and the Rights Agent and
with every other holder of a Right that:

              (a)  prior to the Distribution Date, the Rights will be
    transferable only in connection with the transfer of the Common Shares;

              (b)  as of and after the Distribution Date, the Right
    Certificates are transferable only on the registry books of the Rights
    Agent if surrendered at the office of the Rights Agent designated for such
    purpose, duly endorsed or accompanied by a proper instrument of transfer
    with all required certifications completed; and

              (c)  the Company and the Rights Agent may deem and treat the
    Person in whose name the Right Certificate (or, prior to the Distribution
    Date, the associated Common Shares certificate) is registered as the
    absolute owner thereof and of the Rights evidenced thereby (notwithstanding
    any notations of ownership or writing on the Right Certificates or the
    associated Common Shares certificate made by anyone other than the Company
    or the Rights Agent) for all purposes whatsoever, and neither the Company
    nor the Rights Agent shall be affected by any notice to the contrary.

         Section 17.  RIGHT CERTIFICATE HOLDER NOT DEEMED A STOCKHOLDER.  No 
holder, as such, of any Right Certificate shall be entitled to vote, receive 
dividends or be deemed for any purpose the holder of the Preferred Shares or 
any other securities of the Company which may at any time be issuable on the 
exercise of the Rights represented thereby, nor shall anything contained 
herein or in any Right Certificate be construed to confer upon the holder of 
any Right Certificate, as such, any of the rights of a stockholder of the 
Company or any right to vote for the election of directors or upon any matter 
submitted to stockholders at any meeting thereof, or to give or withhold 
consent to any corporate action, or to receive notice of meetings or other 
actions affecting stockholders (except as provided in Section 24), or to 
receive dividends or subscription rights, or otherwise, until the Right or 
Rights evidenced by such Right Certificate shall have been exercised in 
accordance with the provisions hereof.

         Section 18.  CONCERNING THE RIGHTS AGENT.  The Company agrees to pay
to the Rights Agent reasonable compensation for all services rendered by it
hereunder in accordance with a fee schedule to be mutually agreed upon and, from
time to time, on demand of the Rights 


                                       27

<PAGE>

Agent, its reasonable expenses and counsel fees and other disbursements 
incurred in the administration and execution of this Agreement and the 
exercise and performance of its duties hereunder.  The Company also agrees to 
indemnify the Rights Agent for, and to hold it harmless against, any loss, 
liability, or expense, incurred without negligence, bad faith or willful 
misconduct on the part of the Rights Agent, for anything done or omitted by 
the Rights Agent in connection with the acceptance and administration of this 
Agreement, including the costs and expenses of defending against any claim of 
liability arising therefrom, directly or indirectly.

         The Rights Agent shall be protected and shall incur no liability for 
or in respect of any action taken, suffered or omitted by it in connection 
with its administration of this Agreement in reliance upon any Right 
Certificate or certificate for the Preferred Shares or the Common Shares or 
for other securities of the Company, instrument of assignment or transfer, 
power of attorney, endorsement, affidavit, letter, notice, instruction, 
direction, consent, certificate, statement, or other paper or document 
believed by it to be genuine and to be signed, executed and, where necessary, 
verified or acknowledged, by the proper Person or Persons.

         Section 19.  MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS 
AGENT.  Any corporation or limited liability company into which the Rights 
Agent or any successor Rights Agent may be merged or with which it may be 
consolidated, or any corporation or limited liability company resulting from 
any merger or consolidation to which the Rights Agent or any successor Rights 
Agent shall be a party, or any corporation or limited liability company 
succeeding to the corporate trust or stock transfer business of the Rights 
Agent or any successor Rights Agent, shall be the successor to the Rights 
Agent under this Agreement without the execution or filing of any paper or 
any further act on the part of any of the parties hereto, PROVIDED that such 
corporation or limited liability company would be eligible for appointment as 
a successor Rights Agent under the provisions of Section 21.  In case at the 
time such successor Rights Agent shall succeed to the agency created by this 
Agreement, any of the Right Certificates shall have been countersigned but 
not delivered, any such successor Rights Agent may adopt the countersignature 
of the predecessor Rights Agent and deliver such Right Certificates so 
countersigned; and in case at that time any of the Right Certificates shall 
not have been countersigned, any successor Rights Agent may countersign such 
Right Certificates either in the name of the predecessor Rights Agent or in 
the name of the successor Rights Agent; and in all such cases such Right 
Certificates shall have the full force provided in the Right Certificates and 
in this Agreement.

         In case at any time the name of the Rights Agent shall be changed and
at such time any of the Right Certificates shall have been countersigned but not
delivered, the Rights Agent may adopt the countersignature under its prior name
and deliver Right Certificates so countersigned; and in case at that time any of
the Right Certificates shall not have been countersigned, the Rights Agent may
countersign such Right Certificates either in its prior name or in its changed
name; and in all such cases such Right Certificates shall have the full force
provided in the Right Certificates and in this Agreement.


                                       28

<PAGE>

         Section 20.  DUTIES OF RIGHTS AGENT.  The Rights Agent undertakes 
the duties and obligations imposed by this Agreement upon the following terms 
and conditions, by all of which the Company and the holders of Right 
Certificates, by their acceptance thereof, shall be bound:

         20.1  LEGAL COUNSEL.  The Rights Agent may consult with legal 
counsel selected by it (who may be legal counsel for the Company), and the 
opinion of such counsel shall be full and complete authorization and 
protection to the Rights Agent as to any action taken or omitted by it in 
good faith and in accordance with such opinion.

         20.2  CERTIFICATES AS TO FACTS OR MATTERS.  Whenever in the 
performance of its duties under this Agreement the Rights Agent shall deem it 
necessary or desirable that any fact or matter be proved or established by 
the Company prior to taking or suffering any action hereunder, such fact or 
matter (unless other evidence in respect thereof be herein specifically 
prescribed) may be deemed to be conclusively proved and established by a 
certificate signed by any one of the Chairman of the Board of Directors, the 
Chief Executive Officer, the President, the Chief Financial Officer, any Vice 
President, the Treasurer, the Secretary or any Assistant Treasurer or 
Assistant Secretary of the Company and delivered to the Rights Agent; and 
such certificate shall be full authorization to the Rights Agent for any 
action taken or suffered in good faith by it under the provisions of this 
Agreement in reliance upon such certificate.

         20.3  STANDARD OF CARE.  The Rights Agent shall be liable hereunder
only for its own negligence, bad faith or willful misconduct.

         20.4  RELIANCE ON AGREEMENT AND RIGHT CERTIFICATES.  The Rights 
Agent shall not be liable for or by reason of any of the statements of fact 
or recitals contained in this Agreement or in the Right Certificates (except 
as to its countersignature thereof) or be required to verify the same, but 
all such statements and recitals are and shall be deemed to have been made by 
the Company only.

         20.5  NO RESPONSIBILITY AS TO CERTAIN MATTERS.  The Rights Agent 
shall not be under any responsibility in respect of the validity of this 
Agreement or the execution and delivery hereof (except the due execution 
hereof by the Rights Agent) or in respect of the validity or execution of any 
Right Certificate (except its countersignature thereof); nor shall it be 
responsible for any breach by the Company of any covenant or condition 
contained in this Agreement or in any Right Certificate; nor shall it be 
responsible for any change in the exercisability of the Rights (including the 
Rights becoming void pursuant to Section 11.1.2) or any adjustment required 
under the provisions of Sections 3, 11, 13, 23 or 27 or responsible for the 
manner, method or amount of any such adjustment or the ascertaining of the 
existence of facts that would require any such adjustment (except with 
respect to the exercise of Rights evidenced by Right Certificates after 
actual notice of any such change or adjustment); nor shall it by any act 
hereunder be deemed to make any representation or warranty as to the 
authorization or reservation of any Preferred Shares or other securities to 
be issued pursuant to this Agreement or any Right Certificate or as to 
whether any Preferred Shares will, when so issued, be validly authorized and 
issued, fully paid and nonassessable.


                                       29

<PAGE>

         20.6  FURTHER ASSURANCE BY COMPANY.  The Company agrees that it will 
perform, execute, acknowledge and deliver or cause to be performed, executed, 
acknowledged and delivered all such further and other acts, instruments and 
assurances as may reasonably be required by the Rights Agent for the carrying 
out or performing by the Rights Agent of the provisions of this Agreement.

         20.7  AUTHORIZED COMPANY OFFICERS.  The Rights Agent is hereby 
authorized and directed to accept instructions with respect to the 
performance of its duties hereunder from any one of the Chairman of the Board 
of Directors, the Chief Executive Officer, the President, the Chief Financial 
Officer, any Vice President, the Treasurer, the Secretary or any Assistant 
Treasurer or Assistant Secretary of the Company, and to apply to such 
officers for advice or instructions in connection with its duties under this 
Agreement, and it shall not be liable for any action taken or suffered to be 
taken by it in good faith in accordance with instructions of any such officer 
or for any delay in acting while waiting for these instructions.  Any 
application by the Rights Agent for written instructions from the Company 
may, at the option of the Rights Agent, set forth in writing any action 
proposed to be taken or omitted by the Rights Agent with respect to its 
duties or obligations under this Agreement and the date on and/or after which 
such action shall be taken or such omission shall be effective.  The Rights 
Agent shall not be liable to the Company for any action taken by, or omission 
of, the Rights Agent in accordance with a proposal included in any such 
application on or after the date specified therein (which date shall not be 
less than three business days after the date any such officer actually 
receives such application, unless any such officer shall have consented in 
writing to an earlier date) unless, prior to taking of any such action (or 
the effective date in the case of omission), the Rights Agent shall have 
received written instructions in response to such application specifying the 
action to be taken or omitted.

         20.8  FREEDOM TO TRADE IN COMPANY SECURITIES.  The Rights Agent and 
any stockholder, director, officer or employee of the Rights Agent may buy, 
sell or deal in any of the Rights or other securities of the Company or 
become pecuniarily interested in any transaction in which the Company may be 
interested, or contract with or lend money to the Company or otherwise act as 
fully and freely as though it were not Rights Agent under this Agreement. 
Nothing herein shall preclude the Rights Agent from acting in any other 
capacity for the Company or for any other legal entity.

         20.9  RELIANCE ON ATTORNEYS AND AGENTS.  The Rights Agent may 
execute and exercise any of the rights or powers hereby vested in it or 
perform any duty hereunder either itself or by or through its attorneys or 
agents, and the Rights Agent shall not be answerable or accountable for any 
act, omission, default, neglect or misconduct of any such attorneys or agents 
or for any loss to the Company resulting from any such act, omission, 
default, neglect or misconduct, PROVIDED that reasonable care was exercised 
in the selection and continued employment thereof.


                                       30

<PAGE>

         20.10     INCOMPLETE CERTIFICATE.  If, with respect to any Rights 
Certificate surrendered to the Rights Agent for exercise or transfer, the 
certificate contained in the form of assignment or the form of election to 
purchase set forth on the reverse thereof, as the case may be, has not been 
completed to certify the holder is not an Acquiring Person (or an Affiliate 
or Associate thereof), the Rights Agent shall not take any further action 
with respect to such requested exercise or transfer without first consulting 
with the Company.

         20.11  RIGHTS HOLDERS LIST.  At any time and from time to time after 
the Distribution Date, upon the request of the Company, the Rights Agent 
shall promptly deliver to the Company a list, as of the most recent 
practicable date (or as of such earlier date as may be specified by the 
Company), of the holders of record of Rights.

         Section 21.  CHANGE OF RIGHTS AGENT.  The Rights Agent or any 
successor Rights Agent may resign and be discharged from its duties under 
this Agreement upon thirty (30) days' notice in writing mailed to the Company 
and to each transfer agent of the Common Shares and/or Preferred Shares, as 
applicable, by registered or certified mail.  Following the Distribution 
Date, the Company shall promptly notify the holders of the Right Certificates 
by first-class mail of any such resignation.  The Company may remove the 
Rights Agent or any successor Rights Agent upon thirty (30) days' notice in 
writing, mailed to the Rights Agent or successor Rights Agent, as the case 
may be, and to each transfer agent of the Common Shares and/or Preferred 
Shares, as applicable, by registered or certified mail, and to the holders of 
the Right Certificates by first-class mail.  If the Rights Agent shall resign 
or be removed or shall otherwise become incapable of acting, the resigning, 
removed, or incapacitated Rights Agent shall remit to the Company, or to any 
successor Rights Agent designated by the Company, all books, records, funds, 
certificates or other documents or instruments of any kind then in its 
possession which were acquired by such resigning, removed or incapacitated 
Rights Agent in connection with its services as Rights Agent hereunder, and 
shall thereafter be discharged from all duties and obligations hereunder.  
Following notice of such removal, resignation or incapacity, the Company 
shall appoint a successor to such Rights Agent.  If the Company shall fail to 
make such appointment within a period of thirty (30) days after giving notice 
of such removal or after it has been notified in writing of such resignation 
or incapacity by the resigning or incapacitated Rights Agent or by the holder 
of a Right Certificate (who shall, with such notice, submit his Right 
Certificate for inspection by the Company), then the registered holder of any 
Right Certificate may apply to any court of competent jurisdiction for the 
appointment of a new Rights Agent.  Any successor Rights Agent, whether 
appointed by the Company or by such a court, shall be a corporation organized 
and doing business under the laws of the United States or of the State of New 
York or the State of California (or any other state of the United States so 
long as such corporation is authorized to do business as a banking 
institution in the State of New York or California) in good standing, having 
an office in the State of New York or the State of California, which is 
authorized under such laws to exercise stock transfer or corporate trust 
powers and is subject to supervision or examination by Federal or state 
authority and which has at the time of its appointment as Rights Agent a 
combined capital and surplus of at least $10 million.  After appointment, the 
successor Rights Agent shall be vested with the same powers, rights, duties 
and responsibilities as if it had been originally named as Rights Agent 
without 


                                       31

<PAGE>

further act or deed; but the predecessor Rights Agent shall deliver and 
transfer to the successor Rights Agent any property at the time held by it 
hereunder, and execute and deliver any further assurance, conveyance, act or 
deed necessary for the purpose.  Not later than the effective date of any 
such appointment the Company shall file notice thereof in writing with the 
predecessor Rights Agent and each transfer agent of the Common Shares and/or 
Preferred Shares, as applicable, and, following the Distribution Date, mail a 
notice thereof in writing to the registered holders of the Right 
Certificates. Failure to give any notice provided for in this Section 21, 
however, or any defect therein, shall not affect the legality or validity of 
the resignation or removal of the Rights Agent or the appointment of the 
successor Rights Agent, as the case may be.

         Section 22.  ISSUANCE OF NEW RIGHT CERTIFICATES.  Notwithstanding 
any of the provisions of this Agreement or of the Rights to the contrary, the 
Company may, at its option, issue new Right Certificates evidencing Rights in 
such form as may be approved by its Board of Directors to reflect any 
adjustment or change in the Purchase Price and the number or kind or class of 
shares or other securities or property purchasable under the Right 
Certificates made in accordance with the provisions of this Agreement.  In 
addition, in connection with the issuance or sale of Common Shares following 
the Distribution Date and prior to the Expiration Date, the Company (a) 
shall, with respect to Common Shares so issued or sold pursuant to the 
exercise of stock options or under any employee plan or arrangement, granted 
or awarded as of the Distribution Date, or upon exercise, conversion or 
exchange of securities hereinafter issued by the Company, and (b) may, in any 
other case, if deemed necessary or appropriate by the Board of Directors of 
the Company, issue Right Certificates representing the appropriate number of 
Rights in connection with such issuance or sale; PROVIDED, HOWEVER, that (i) 
no such Right Certificate shall be issued if, and to the extent that, the 
Company shall be advised by counsel that such issuance would create a 
significant risk of material adverse tax consequences to the Company or the 
Person to whom such Right Certificate would be issued, (ii) no such Right 
Certificate shall be issued if, and to the extent that, appropriate 
adjustment shall otherwise have been made in lieu of the issuance thereof and 
(iii) at the time of a determination by the Board of Directors to cause the 
Company to issue a Right Certificate under clause (b) above, there must be 
Continuing Directors then in office and any such determination shall require 
the approval of at least a majority of such Continuing Directors.


                                       32


<PAGE>

         Section 23.  REDEMPTION.

         23.1  RIGHT TO REDEEM.  The Board of Directors of the Company may, 
at its option, at any time prior to a Trigger Event, redeem all but not less 
than all of the then outstanding Rights at a redemption price of $.01 per 
Right, appropriately adjusted to reflect any stock split, stock dividend, 
recapitalization or similar transaction occurring after the date hereof (such 
redemption price being hereinafter referred to as the "REDEMPTION PRICE"), 
and the Company may, at its option, pay the Redemption Price in Common Shares 
(based on the "current per share market price," determined pursuant to 
Section 11.4, of the Common Shares at the time of redemption), cash or any 
other form of consideration deemed appropriate by the Board of Directors.  
The redemption of the Rights by the Board of Directors may be made effective 
at such time, on such basis and subject to such conditions as the Board of 
Directors in its sole discretion may establish.  Notwithstanding anything 
contained in this Agreement to the contrary notwithstanding, the Rights shall 
not be exercisable following a transaction or event described in Section 
11.1.2 prior to the expiration or termination of the Company's right of 
redemption hereunder.

         23.2  REDEMPTION PROCEDURES.  Immediately upon the action of the 
Board of Directors of the Company ordering the redemption of the Rights (or 
at such later time as the Board of Directors may establish for the 
effectiveness of such redemption), and without any further action and without 
any notice, the right to exercise the Rights will terminate and the only 
right thereafter of the holders of Rights shall be to receive the Redemption 
Price for each Right so held.  The Company shall promptly give public notice 
of such redemption; PROVIDED, HOWEVER, that the failure to give, or any 
defect in, any such notice shall not affect the validity of such redemption.  
The Company shall promptly give, or cause the Rights Agent to give, notice of 
such redemption to the holders of the then outstanding Rights by mailing such 
notice to all such holders at their last addresses as they appear upon the 
registry books of the Rights Agent or, prior to the Distribution Date, on the 
registry books of the transfer agent for the Common Shares.  Any notice which 
is mailed in the manner herein provided shall be deemed given, whether or not 
the holder receives the notice.  Each such notice of redemption shall state 
the method by which the payment of the Redemption Price will be made.  
Neither the Company nor any of its Affiliates or Associates may redeem, 
acquire or purchase for value any Rights at any time in any manner other than 
that specifically set forth in this Section 23 or in Section 27, and other 
than in connection with the purchase, acquisition or redemption of Common 
Shares prior to the Distribution Date.

         Section 24.  NOTICE OF CERTAIN EVENTS.  In case the Company shall
propose at any time after the earlier of the Shares Acquisition Date and the
Distribution Date (a) to pay any dividend payable in stock of any class to the
holders of Preferred Shares or to make any other distribution to the holders of
Preferred Shares (other than a regular periodic cash dividend at a rate not in
excess of 125% of the rate of the last regular periodic cash dividend
theretofore paid or, in case regular periodic cash dividends have not
theretofore been paid, at a rate not in excess of 50% of the average net income
per share of the Company for the four quarters ended

                                       33

<PAGE>

immediately prior to the payment of such dividends, or a stock dividend on, 
or a subdivision, combination or reclassification of the Common Shares), or 
(b) to offer to the holders of Preferred Shares rights or warrants to 
subscribe for or to purchase any additional Preferred Shares or shares of 
stock of any class or any other securities, rights or options, or (c) to 
effect any reclassification of its Preferred Shares (other than a 
reclassification involving only the subdivision of outstanding Preferred 
Shares), or (d) to effect any consolidation or merger into or with, or to 
effect any sale or other transfer (or to permit one or more of its 
Subsidiaries to effect any sale or other transfer), in one or more 
transactions, of 50% or more of the assets or earning power of the Company 
and its Subsidiaries (taken as a whole) to, any other Person (other than 
pursuant to a merger or other acquisition agreement of the type described in 
Section 1.3(ii)(A)(z)), or (e) to effect the liquidation, dissolution or 
winding up of the Company, or (f) to declare or pay any dividend on the 
Common Shares payable in Common Shares or to effect a subdivision, 
combination or consolidation of the Common Shares (by reclassification or 
otherwise than by payment of dividends in Common Shares), then, in each such 
case, the Company shall give to the Rights Agent and to each holder of a 
Right Certificate, in accordance with Section 25, a notice of such proposed 
action, which shall specify the record date for the purposes of such stock 
dividend, distribution of rights or warrants, or the date on which such 
reclassification, consolidation, merger, sale, transfer, liquidation, 
dissolution, or winding up is to take place and the date of participation 
therein by the holders of the Preferred Shares and/or Common Shares, if any 
such date is to be fixed, and such notice shall be so given in the case of 
any action covered by clause (a) or (b) above at least ten (10) days prior to 
the record date for determining holders of the Preferred Shares for purposes 
of such action, and in the case of any such other action, at least ten (10) 
days prior to the date of the taking of such proposed action or the date of 
participation therein by the holders of the Preferred Shares and/or Common 
Shares, whichever shall be the earlier.

         In case any event set forth in Section 11.1.2 or Section 13 shall 
occur, then, in any such case, (i) the Company shall as soon as practicable 
thereafter give to the Rights Agent and to each holder of a Right 
Certificate, in accordance with Section 25, a notice of the occurrence of 
such event, which notice shall describe the event and the consequences of the 
event to holders of Rights under Section 11.1.2 and Section 13, and (ii) all 
references in this Section 24 to Preferred Shares shall be deemed thereafter 
to refer to Common Shares and/or, if appropriate, other securities.

         Notwithstanding anything in this Agreement to the contrary, prior to 
the Distribution Date a filing by the Company with the Securities and 
Exchange Commission shall constitute sufficient notice to the holders of 
securities of the Company, including the Rights, for purposes of this 
Agreement and no other notice need be given.

                                       34

<PAGE>

         Section 25.  NOTICES.  Notices or demands authorized by this 
Agreement to be given or made by the Rights Agent or by the holder of any 
Right Certificate to or on the Company shall be sufficiently given or made if 
sent by first-class mail, postage prepaid, addressed (until another address 
is filed in writing with the Rights Agent) as follows:

                   Promus Hotel Corporation
                   755 Crossover Lane
                   Memphis, Tennessee  38117
                   Attention:  Secretary
                   
Subject to the provisions of Section 21 and Section 24, any notice or demand 
authorized by this Agreement to be given or made by the Company or by the 
holder of any Right Certificate to or on the Rights Agent shall be 
sufficiently given or made if sent by first-class mail, postage prepaid, 
addressed (until another address is filed in writing with the Company) as 
follows:

                   First Union National Bank
                   1524 West W.T.Harris Boulevard
                   Building 3C3
                   Charlotte, North Carolina  28262
                   Attention:  Shareholder Services Group
                   
Notices or demands authorized by this Agreement to be given or made by the 
Company or the Rights Agent to the holder of any Right Certificate (or, prior 
to the Distribution Date, to the holder of any certificate representing 
Common Shares) shall be sufficiently given or made if sent by first-class 
mail, postage prepaid, addressed to such holder at the address of such holder 
as shown on the registry books of the Company.

         Section 26.    SUPPLEMENTS AND AMENDMENTS.  For so long as the 
Rights are then redeemable, the Company may in its sole and absolute 
discretion, and the Rights Agent shall, if the Company so directs, supplement 
or amend any provision of this Agreement in any respect without the approval 
of any holders of Rights or Common Shares.  From and after the time that the 
Rights are no longer redeemable, the Company may, and the Rights Agent shall, 
if the Company so directs, from time to time supplement or amend this 
Agreement without the approval of any holders of Rights (i) to cure any 
ambiguity or to correct or supplement any provision contained herein which 
may be defective or inconsistent with any other provisions herein, (ii) to 
shorten or lengthen any time period hereunder (which shortening or 
lengthening, after the time a Person becomes an Acquiring Person, shall be 
effective only if there are Continuing Directors and shall require the 
approval of at least a majority of such Continuing Directors) or (iii) to 
make any other changes or provisions in regard to matters or questions 
arising hereunder which the Company may deem necessary or desirable, 
including but not limited to extending the Final Expiration Date; PROVIDED, 
HOWEVER, that no such supplement or amendment shall adversely affect the 
interests of the holders of Rights as such (other than an Acquiring Person or 
an Affiliate or Associate of an Acquiring Person), and no such supplement or 
amendment may cause the Rights again to become redeemable or cause this 
Agreement again

                                       35

<PAGE>

to become amendable other than in accordance with this sentence; PROVIDED 
FURTHER, that the right of the Board of Directors to extend the Distribution 
Date shall not require any amendment or supplement hereunder.  Upon the 
delivery of a certificate from an appropriate officer of the Company which 
states that the proposed supplement or amendment is in compliance with the 
terms of this Section 26, the Rights Agent shall execute such supplement or 
amendment. Without limiting the foregoing, at any time prior to such time as 
any Person becomes an Acquiring Person, the Company and the Rights Agent may 
amend this Agreement to lower the thresholds set forth in Sections 1.1 and 
3.1 to not less than the greater of (i) any percentage greater than the 
largest percentage of the outstanding Common Shares then known by the Company 
to be beneficially owned by any Person (other than the Company, any 
Subsidiary of the Company, any employee benefit plan of the Company or any 
Subsidiary of the Company, or any entity holding Common Shares for or 
pursuant to the terms of any such plan) and (ii) 10%.  Notwithstanding 
anything herein to the contrary, any supplement or amendment to this 
Agreement, after the time that a Person becomes an Acquiring Person shall 
require the affirmative vote of a majority of the Continuing Directors.

         Section 27.  EXCHANGE.

         27.1  EXCHANGE OF COMMON SHARES FOR RIGHTS.  The Board of Directors 
of the Company may, at its option, at any time after the occurrence of a 
Trigger Event, exchange Common Shares for all or part of the then outstanding 
and exercisable Rights (which shall not include Rights that have become void 
pursuant to the provisions of Section 11.1.2) by exchanging at an exchange 
ratio of that number of Common Shares having an aggregate value equal to the 
Spread (with such value being based on the current per share market price (as 
determined pursuant to Section 11.4) on the date of the occurrence of a 
Trigger Event) per Right, appropriately adjusted to reflect any stock split, 
stock dividend or similar transaction occurring after the date hereof (such 
amount per Right being hereinafter referred to as the "EXCHANGE 
CONSIDERATION"). Notwithstanding the foregoing, (i) the Board of Directors 
shall not be empowered to effect such exchange at any time after any 
Acquiring Person shall have become the Beneficial Owner of 50% or more of the 
Common Shares then outstanding and (ii) the Board shall not be empowered to 
effect an exchange for more than that number of Rights for which there are 
sufficient Common Shares authorized but unissued, or held by the Company as 
treasury shares, to permit the exchange for Rights.  From and after the 
occurrence of an event specified in Section 13.1, any Rights that theretofore 
have not been exchanged pursuant to this Section 27.1 shall thereafter be 
exerciseable only in accordance with Section 13 and may not be exchanged 
pursuant to this Section 27.1.  The exchange of the Rights by the Board of 
Directors may be made effective at such time, on such basis and with such 
conditions as the Board of Directors in its sole discretion may establish.

         27.2  EXCHANGE PROCEDURES.  Immediately upon the action of the Board 
of Directors of the Company ordering the exchange for any Rights pursuant to 
Section 27.1 and without any further action and without any notice, the right 
to exercise such Rights shall terminate and the only right thereafter of a 
holder of such Rights shall be to receive one Common Share.  The Company 
shall promptly give public notice of any such exchange; PROVIDED,

                                       36

<PAGE>

HOWEVER, that the failure to give, or any defect in, such notice shall not 
affect the validity of such exchange.  The Company promptly shall mail a 
notice of any such exchange to all of the holders of such Rights at their 
last addresses as they appear upon the registry books of the Rights Agent. 
Any notice which is mailed in the manner herein provided shall be deemed 
given, whether or not the holder receives the notice.  Each such notice of 
exchange shall state the method by which the exchange of the Common Shares 
for Rights will be effected and, in the event of any partial exchange, the 
number of Rights which will be exchanged.  Any partial exchange shall be 
effected pro rata based on the number of Rights (other than the Rights which 
have become void pursuant to the provisions of Section 11.1.2) held by each 
holder of Rights.

         27.3 INSUFFICIENT SHARES.  The Company may at its option substitute, 
and, in the event that there shall not be sufficient Common Shares issued but 
not outstanding or authorized but unissued to permit an exchange of Rights 
for Common Shares as contemplated in accordance with this Section 27, the 
Company shall substitute to the extent of such insufficiency, for each Common 
Shares that would otherwise be issuable upon exchange of a Right, a number of 
Preferred Shares or fraction thereof (or equivalent preferred stock, as such 
term is defined in Section 11.2 such that the current per share market price 
(determined pursuant to Section 11.4) of one Preferred Share (or equivalent 
preferred share) multiplied by such number or fraction is equal to the 
current per share market price of one Common Share (determined pursuant to 
Section 11.4) as of the date of such exchange.

         Section 28.  SUCCESSORS.  All the covenants and provisions of this 
Agreement by or for the benefit of the Company or the Rights Agent shall bind 
and inure to the benefit of their respective successors and assigns hereunder.

         Section 29.  BENEFITS OF THIS AGREEMENT.  Nothing in this Agreement 
shall be construed to give to any Person or corporation other than the 
Company, the Rights Agent and the registered holders of the Right 
Certificates (and, prior to the Distribution Date, the Common Shares) any 
legal or equitable right, remedy or claim under this Agreement; but this 
Agreement shall be for the sole and exclusive benefit of the Company, the 
Rights Agent and the registered holders of the Right Certificates (and, prior 
to the Distribution Date, the Common Shares).

         Section 30.  DETERMINATIONS AND ACTIONS BY THE BOARD OF DIRECTORS. 
The Board of Directors of the Company shall have the exclusive power and 
authority to administer this Agreement and to exercise the rights and powers 
specifically granted to the Board of Directors of the Company or to the 
Company, or as may be necessary or advisable in the administration of this 
Agreement, including, without limitation, the right and power to (i) 
interpret the provisions of this Agreement and (ii) make all determinations 
deemed necessary or advisable for the administration of this Agreement 
(including, without limitation, a determination to redeem or not redeem the 
Rights or amend this Agreement).  All such actions, calculations, 
interpretations and determinations (including, for purposes of clause (y) 
below, all omissions with respect to the foregoing) that are done or made by 
the Board of Directors of the Company in good faith, shall (x) be final, 
conclusive and binding on the Company, the Rights Agent, the holders of the

                                       37

<PAGE>

Rights, as such, and all other parties, and (y) not subject the Board of 
Directors to any liability to the holders of the Rights.

         Section 31.  SEVERABILITY.  If any term, provision, covenant or 
restriction of this Agreement is held by a court of competent jurisdiction or 
other authority to be invalid, void or unenforceable, the remainder of the 
terms, provisions, covenants and restrictions of this Agreement shall remain 
in full force and effect and shall in no way be affected, impaired or 
invalidated.

         Section 32.  GOVERNING LAW.  This Agreement and each Right 
Certificate issued hereunder shall be deemed to be a contract made under the 
laws of the State of Delaware and for all purposes shall be governed by and 
construed in accordance with the laws of such State applicable to contracts 
to be made and performed entirely within such State.

         Section 33.  COUNTERPARTS.  This Agreement may be executed in any 
number of counterparts and each of such counterparts shall for all purposes 
be deemed to be an original, and all such counterparts shall together 
constitute but one and the same instrument.

         Section 34.  DESCRIPTIVE HEADING.  Descriptive headings of the 
several Sections of this Agreement are inserted for convenience only and 
shall not control or affect the meaning or construction of any of the 
provisions hereof.

                                       38

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed, as of the day and year first above written.


                        PARENT HOLDING CORP.
                        (TO BE RENAMED PROMUS HOTEL CORPORATION)



                        By  
                            --------------------------
                            Name:     
                            Title:    




                        FIRST UNION NATIONAL BANK



                        By:  -------------------------
                             Name:     
                             Title:    


                                       39

<PAGE>


                                                                      EXHIBIT A

                                       FORM OF
                                           
                             CERTIFICATE OF DESIGNATIONS
                                           
                                          of
                                           
                    SERIES A JUNIOR PARTICIPATING PREFERRED STOCK
                                           
                                          of
                                           
                               PROMUS HOTEL CORPORATION
                                           
                           (Pursuant to Section 151 of the
                          Delaware General Corporation Law)
                                           
                            _____________________________
                                           
                                           
    Promus Hotel Corporation, a corporation organized and existing under the 
General Corporation Law of the State of Delaware (hereinafter called the 
"CORPORATION"), hereby certifies that the following resolution was adopted by 
the Board of Directors of the Corporation as required by Section 151 of the 
General Corporation Law at a meeting duly called and held on December ___, 
1997.

    RESOLVED, that pursuant to the authority granted to and vested in the 
Board of Directors of this Corporation (hereinafter called the "BOARD OF 
DIRECTORS" or the "BOARD") in accordance with the provisions of the 
Certificate of Incorporation of this Corporation, the Board of Directors 
hereby creates a series of Preferred Stock, par value $.01 per share (the 
"PREFERRED STOCK"), of the Corporation and hereby states the designation and 
number of shares, and fixes the relative rights, powers and preferences, and 
qualifications, limitations and restrictions thereof as follows:

    Section 1.  DESIGNATION AND AMOUNT.  The shares of such series shall be 
designated as "Series A Junior Participating Preferred Stock" (the "SERIES A 
PREFERRED STOCK") and the number of shares constituting the Series A 
Preferred Stock shall be _____.  Such number of shares may be increased or 
decreased by resolution of the Board of Directors; PROVIDED, that no decrease 
shall reduce the number of shares of Series A Preferred Stock to a number 
less than the number of shares then outstanding plus the number of shares 
reserved for issuance upon the exercise of outstanding options, rights or 
warrants or upon the conversion of any outstanding securities issued by the 
Corporation convertible into Series A Preferred Stock.


                                      A-1

<PAGE>

    Section 2.  DIVIDENDS AND DISTRIBUTIONS.

         (A) Subject to the prior and superior rights of the holders of any
    shares of any class or series of stock of this Corporation ranking prior
    and superior to the Series A Preferred Stock with respect to dividends, the
    holders of shares of Series A Preferred Stock, in preference to the holders
    of Common Stock, par value $.01 per share (the "COMMON STOCK"), of the
    Corporation, and of any other stock ranking junior to the Series A
    Preferred Stock, shall be entitled to receive, when, as and if declared by
    the Board of Directors out of funds legally available for the purpose,
    quarterly dividends payable in cash on the first day of March, June,
    September and December in each year (each such date being referred to
    herein as a "QUARTERLY DIVIDEND PAYMENT DATE"), commencing on the first
    Quarterly Dividend Payment Date after the first issuance of a share or
    fraction of a share of Series A Preferred Stock, in an amount per share
    (rounded to the nearest cent) equal to the greater of (a) $1.00 or (b)
    subject to the provision for adjustment hereinafter set forth, 100 times
    the aggregate per share amount of all cash dividends, and 100 times the
    aggregate per share amount (payable in kind) of all non-cash dividends or
    other distributions, other than a dividend payable in shares of Common
    Stock or a subdivision of the outstanding shares of Common Stock (by
    reclassification or otherwise), declared on the Common Stock since the
    immediately preceding Quarterly Dividend Payment Date or, with respect to
    the first Quarterly Dividend Payment Date, since the first issuance of any
    share or fraction of a share of Series A Preferred Stock. In the event the
    Corporation shall at any time declare or pay any dividend on the Common
    Stock payable in shares of Common Stock, or effect a subdivision,
    combination or consolidation of the outstanding shares of Common Stock (by
    reclassification or otherwise than by payment of a dividend in shares of
    Common Stock) into a greater or lesser number of shares of Common Stock,
    then in each such case the amount to which holders of shares of Series A
    Preferred Stock were entitled immediately prior to such event under clause
    (b) of the preceding sentence shall be adjusted by multiplying such amount
    by a fraction, the numerator of which is the number of shares of Common
    Stock outstanding immediately after such event and the denominator of which
    is the number of shares of Common Stock that were outstanding immediately
    prior to such event.

         (B)  The Corporation shall declare a dividend or distribution on the
    Series A Preferred Stock as provided in paragraph (A) of this Section 2
    immediately after it declares a dividend or distribution on the Common
    Stock (other than a dividend payable in shares of Common Stock); provided
    that, in the event no dividend or distribution shall have been declared on
    the Common Stock during the period between any Quarterly Dividend Payment
    Date and the next subsequent Quarterly Dividend Payment Date, a dividend of
    $1.00 per share on the Series A Preferred Stock shall nevertheless be
    payable on such subsequent Quarterly Dividend Payment Date.

         (C)  Dividends shall begin to accrue and be cumulative on outstanding
    shares of Series A Preferred Stock from the Quarterly Dividend Payment Date
    next preceding the date of issue of such shares, unless the date of issue
    of such shares is prior to the record 


                                      A-2

<PAGE>

    date for the first Quarterly Dividend Payment Date, in which case 
    dividends on such shares shall begin to accrue from the date of issue 
    of such shares, or unless the date of issue is a Quarterly Dividend 
    Payment Date or is a date after the record date for the determination 
    of holders of shares of Series A Preferred Stock entitled to receive a 
    quarterly dividend and before such Quarterly Dividend Payment Date, in 
    either of which events such dividends shall begin to accrue and be 
    cumulative from such Quarterly Dividend Payment Date.  Accrued but 
    unpaid dividends shall not bear interest.  Dividends paid on the shares 
    of Series A Preferred Stock in an amount less than the total amount of 
    such dividends at the time accrued and payable on such shares shall be 
    allocated pro rata on a share-by-share basis among all such shares at 
    the time outstanding. The Board of Directors may fix a record date for 
    the determination of holders of shares of Series A Preferred Stock 
    entitled to receive payment of a dividend or distribution declared 
    thereon, which record date shall be not more than 60 days prior to the 
    date fixed for the payment thereof.

    Section 3.  VOTING RIGHTS.  The holders of shares of Series A Preferred
Stock shall have the following voting rights:

         (A)  Subject to the provision for adjustment hereinafter set forth,
    each share of Series A Preferred Stock shall entitle the holder thereof to
    100 votes on all matters submitted to a vote of the stockholders of the
    Corporation.  In the event the Corporation shall at any time declare or pay
    any dividend on the Common Stock payable in shares of Common Stock, or
    effect a subdivision, combination or consolidation of the outstanding
    shares of Common Stock (by reclassification or otherwise than by payment of
    a dividend in shares of Common Stock) into a greater or lesser number of
    shares of Common Stock, then in each such case the number of votes per
    share to which holders of shares of Series A Preferred Stock were entitled
    immediately prior to such event shall be adjusted by multiplying such
    number by a fraction, the numerator of which is the number of shares of
    Common Stock outstanding immediately after such event and the denominator
    of which is the number of shares of Common Stock that were outstanding
    immediately prior to such event.

         (B)  Except as otherwise provided herein, in any other Certificate of
    Designations creating a series of Preferred Stock or any similar stock, or
    by law, the holders of shares of Series A Preferred Stock and the holders
    of shares of Common Stock and any other capital stock of the Corporation
    having general voting rights shall vote together as one class on all
    matters submitted to a vote of stockholders of the Corporation.

         (C)  Except as set forth herein, or as otherwise provided by law,
    holders of Series A Preferred Stock shall have no special voting rights and
    their consent shall not be required (except to the extent they are entitled
    to vote with holders of Common Stock as set forth herein) for taking any
    corporate action.


                                       A-3

<PAGE>

Section 4. CERTAIN RESTRICTIONS.

         (A)  Whenever quarterly dividends or other dividends or distributions
    payable on the Series A Preferred Stock as provided in Section 2 are in
    arrears, thereafter and until all accrued and unpaid dividends and
    distributions, whether or not declared, on shares of Series A Preferred
    Stock outstanding shall have been paid in full, the Corporation shall not:

              (i)  declare or pay dividends, or make any other distributions,
         on any shares of stock ranking junior (either as to dividends or upon
         liquidation, dissolution or winding up) to the Series A Preferred
         Stock;

              (ii)  declare or pay dividends, or make any other distributions,
         on any shares of stock ranking on a parity (either as to dividends or
         upon liquidation, dissolution or winding up) with the Series A
         Preferred Stock, except dividends paid ratably on the Series A
         Preferred Stock and all such parity stock on which dividends are
         payable or in arrears in proportion to the total amounts to which the
         holders of all such shares are then entitled;

              (iii)  redeem or purchase or otherwise acquire for consideration
         shares of any stock ranking junior (either as to dividends or upon
         liquidation, dissolution or winding up) to the Series A Preferred
         Stock, provided that the Corporation may at any time redeem, purchase
         or otherwise acquire shares of any such junior stock in exchange for
         shares of any stock of the Corporation ranking junior (either as to
         dividends or upon dissolution, liquidation or winding up) to the
         Series A Preferred Stock; or 

              (iv)  redeem or purchase or otherwise acquire for consideration
         any shares of Series A Preferred Stock, or any shares of stock ranking
         on a parity with the Series A Preferred Stock, except in accordance
         with a purchase offer made in writing or by publication (as determined
         by the Board of Directors) to all holders of such shares upon such
         terms as the Board of Directors, after consideration of the respective
         annual dividend rates and other relative rights and preferences of the
         respective series and classes, shall determine in good faith will
         result in fair and equitable treatment among the respective series or
         classes.

         (B)  The Corporation shall not permit any subsidiary of the
    Corporation to purchase or otherwise acquire for consideration any shares
    of stock of the Corporation unless the Corporation could, under paragraph
    (A) of this Section 4, purchase or otherwise acquire such shares at such
    time and in such manner.

    Section 5.  REACQUIRED SHARES.  Any shares of Series A Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and canceled promptly after the acquisition thereof.  All such
shares shall upon their cancellation become 


                                      A-4

<PAGE>

authorized but unissued shares of Preferred Stock and may be reissued as part 
of a new series of Preferred Stock subject to the conditions and restrictions 
on issuance set forth herein, in the Certificate of Incorporation, or in any 
other Certificate of Designations creating a series of Preferred Stock or any 
similar stock or as otherwise required by law.

    Section 6.  LIQUIDATION, DISSOLUTION OR WINDING UP.  (A) Upon any 
liquidation, dissolution or winding up of the Corporation, voluntary or 
otherwise no distribution shall be made (1) to the holders of shares of stock 
ranking junior (either as to dividends or upon liquidation, dissolution or 
winding up) to the Series A Preferred Stock unless, prior thereto, the 
holders of shares of Series A Preferred Stock shall have received an amount 
per share (the "Series A Liquidation Preference") equal to $100 per share, 
plus an amount equal to accrued and unpaid dividends and distributions 
thereon, whether or not declared, to the date of such payment, provided that 
the holders of shares of Series A Preferred Stock shall be entitled to 
receive an aggregate amount per share, subject to the provision for 
adjustment hereinafter set forth, equal to 100 times the aggregate amount to 
be distributed per share to holders of shares of Common Stock, or (2) to the 
holders of shares of stock ranking on a parity (either as to dividends or 
upon liquidation, dissolution or winding up) with the Series A Preferred 
Stock, except distributions made ratably on the Series A Preferred Stock and 
all such parity stock in proportion to the total amounts to which the holders 
of all such shares are entitled upon such liquidation, dissolution or winding 
up.  In the event the Corporation shall at any time declare or pay any 
dividend on the Common Stock payable in shares of Common Stock, or effect a 
subdivision, combination or consolidation of the outstanding shares of Common 
Stock (by reclassification or otherwise than by payment of a dividend in 
shares of Common Stock) into a greater or lesser number of shares of Common 
Stock, then in each such case the aggregate amount to which holders of shares 
of Series A Preferred Stock were entitled immediately prior to such event 
under the proviso in clause (1) of the preceding sentence shall be adjusted 
by multiplying such amount by a fraction the numerator of which is the number 
of shares of Common Stock outstanding immediately after such event and the 
denominator of which is the number of shares of Common Stock that are 
outstanding immediately prior to such event.

         (B)  In the event, however, that there are not sufficient assets 
available to permit payment in full of the Series A Liquidation Preference 
and the liquidation preferences of all other classes and series of stock of 
the Corporation, if any, that rank on a parity with the Series A Preferred 
Stock in respect thereof, then the assets available for such distribution 
shall be distributed ratably to the holders of the Series A Preferred Stock 
and the holders of such parity shares in proportion to their respective 
liquidation preferences.

         (C)  Neither the merger or consolidation of the Corporation into or 
with another corporation nor the merger or consolidation of any other 
corporation into or with the Corporation shall be deemed to be a liquidation, 
dissolution or winding up of the Corporation within the meaning of this 
Section 6.

    Section 7.  CONSOLIDATION, MERGER, ETC.  In case the Corporation shall 
enter into any consolidation, merger, combination or other transaction in 
which the shares of Common Stock 


                                       A-5

<PAGE>

are exchanged for or changed into other stock or securities, cash and/or any 
other property, then in any such case each share of Series A Preferred Stock 
shall at the same time be similarly exchanged or changed into an amount per 
share, subject to the provision for adjustment hereinafter set forth, equal 
to 100 times the aggregate amount of stock, securities, cash and/or any other 
property (payable in kind), as the case may be, into which or for which each 
share of Common Stock is changed or exchanged. In the event the Corporation 
shall at any time declare or pay any dividend on the Common Stock payable in 
shares of Common Stock, or effect a subdivision, combination or consolidation 
of the outstanding shares of Common Stock (by reclassification or otherwise 
than by payment of a dividend in shares of Common Stock) into a greater or 
lesser number of shares of Common Stock, then in each such case the amount 
set forth in the preceding sentence with respect to the exchange or change of 
shares of Series A Preferred Stock shall be adjusted by multiplying such 
amount by a fraction, the numerator of which is the number of shares of 
Common Stock outstanding immediately after such event and the denominator of 
which is the number of shares of Common Stock that were outstanding 
immediately prior to such event.

    Section 8.  NO REDEMPTION.  The shares of Series A Preferred Stock shall
not be redeemable by the Company.

    Section 9.  RANK.  The Series A Preferred Stock shall rank, with respect 
to the payment of dividends and the distribution of assets upon liquidation, 
dissolution or winding up, junior to all series of any other class of the 
Corporation's Preferred Stock, except to the extent that any such other 
series specifically provides that it shall rank on a parity with or junior to 
the Series A Preferred Stock.

    Section 10.  AMENDMENT.  At any time any shares of Series A Preferred 
Stock are outstanding, the Certificate of Incorporation of the Corporation 
shall not be amended in any manner which would materially alter or change the 
powers, preferences or special rights of the Series A Preferred Stock so as 
to affect them adversely without the affirmative vote of the holders of at 
least two-thirds of the outstanding shares of Series A Preferred Stock, 
voting separately as a single class.

    Section 11.    FRACTIONAL SHARES.  Series A Preferred Stock may be issued 
in fractions of a share that shall entitle the holder, in proportion to such 
holder's fractional shares, to exercise voting rights, receive dividends, 
participate in distributions and to have the benefit of all other rights of 
holders of Series A Preferred Stock.


                                      A-6

<PAGE>

    IN WITNESS WHEREOF, this Certificate of Designations is executed on 
behalf of the Corporation by its Chairman of the Board this ___ day of 
_______, 1997.

                                                 ______________________________
                                                 Raymond E. Schultz
                                                 Chairman of the Board






                                       A-7

<PAGE>

                                                                     EXHIBIT B

                             [Form of Right Certificate]

Certificate No. R-                             Preferred Stock Purchase Rights



    NOT EXERCISABLE AFTER DECEMBER ___, 2007 OR EARLIER IF NOTICE OF REDEMPTION
    OR EXCHANGE IS GIVEN OR IF THE COMPANY IS MERGED OR ACQUIRED PURSUANT TO AN
    AGREEMENT OF THE TYPE DESCRIBED IN SECTION 1.3(ii)(A)(z) OF THE AGREEMENT. 
    THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.01 PER RIGHT, AND TO EXCHANGE ON
    THE TERMS SET FORTH IN THE AGREEMENT.  UNDER CERTAIN CIRCUMSTANCES
    (SPECIFIED IN SECTION 11.1.2 OF THE AGREEMENT), RIGHTS BENEFICIALLY OWNED
    BY OR TRANSFERRED TO AN ACQUIRING PERSON (AS DEFINED IN THE AGREEMENT), OR
    ANY SUBSEQUENT HOLDER OF SUCH RIGHTS WILL BECOME NULL AND VOID AND WILL NO
    LONGER BE TRANSFERABLE. 

                                  Right Certificate

                               PROMUS HOTEL CORPORATION

         This certifies that                           , or registered assigns,
is the registered owner of the number of Rights set forth above, each of which
entitles the owner thereof, subject to the terms, provisions and conditions of
the Rights Agreement, dated as of December ___, 1997, as the same may be amended
from time to time (the "Agreement"), between Promus hotel Corporation, a
Delaware corporation (the "Company"), and First Union National Bank, a North
Carolina corporation, as Rights Agent (the "Rights Agent"), to purchase from the
Company at any time after the Distribution Date and prior to 5:00 P.M. (New York
City time) on December ___, 2007, at the offices of the Rights Agent, or its
successors as Rights Agent, designated for such purpose, one one-hundredth of a
fully paid, nonassessable share of Series A Junior Participating Preferred
Stock, par value $.01 per share (the "Preferred Shares") of the Company, at a
purchase price of $______ per one one-hundredth of a Preferred Share, subject to
adjustment (the "Purchase Price"), upon presentation and surrender of this Right
Certificate with the Form of Election to Purchase and certification duly
executed.  The number of Rights evidenced by this Right Certificate (and the
number of one one-hundredths of a Preferred Share which may be purchased upon
exercise thereof) set forth above, and the Purchase Price set forth above, are
the number and Purchase Price as of ________, ____ based on the Preferred Shares
as constituted at such date.  Capitalized terms used in this Right Certificate
without definition shall have the meanings ascribed to them in the Agreement. 
As provided in the Agreement, the Purchase Price and the number of Preferred
Shares which may be purchased upon the exercise of

                                     B-1

<PAGE>

the Rights evidenced by this Right Certificate are subject to modification 
and adjustment upon the happening of certain events.

         This Right Certificate is subject to all of the terms, provisions and
conditions of the Agreement, which terms, provisions and conditions are hereby
incorporated herein by reference and made a part hereof and to which Agreement
reference is hereby made for a full description of the rights, limitations of
rights, obligations, duties and immunities hereunder of the Rights Agent, the
Company and the holders of the Right Certificates.  Copies of the Agreement are
on file at the principal offices of the Company and the Rights Agent.

         This Right Certificate, with or without other Right Certificates, upon
surrender at the offices of the Rights Agent designated for such purpose, may be
exchanged for another Right Certificate or Right Certificates of like tenor and
date evidencing Rights entitling the holder to purchase a like aggregate number
of one one-hundredths of a Preferred Share as the Rights evidenced by the Right
Certificate or Right Certificates surrendered shall have entitled such holder to
purchase.  If this Right Certificate shall be exercised in part, the holder
shall be entitled to receive upon surrender hereof another Right Certificate or
Right Certificates for the number of whole Rights not exercised.

         Subject to the provisions of the Agreement, the Board of Directors
may, at its option, (i) redeem the Rights evidenced by this Right Certificate at
a redemption price of $.01 per Right or (ii) exchange Common Shares for the
Rights evidenced by this Certificate, in whole or in part.

         No fractional Preferred Shares will be issued upon the exercise of any
Right or Rights evidenced hereby (other than fractions of Preferred Shares which
are integral multiples of one one-hundredth of a Preferred Share, which may, at
the election of the Company, be evidenced by depository receipts), but in lieu
thereof a cash payment will be made, as provided in the Agreement.

         No holder of this Right Certificate, as such, shall be entitled to
vote or receive dividends or be deemed for any purpose the holder of the
Preferred Shares or of any other securities of the Company which may at any time
be issuable on the exercise hereof, nor shall anything contained in the
Agreement or herein be construed to confer upon the holder hereof, as such, any
of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in the Agreement), or to receive dividends or subscription rights, or
otherwise, until the Right or Rights evidenced by this Right Certificate shall
have been exercised as provided in the Agreement.

                                      B-2

<PAGE>

         If any term, provision, covenant or restriction of the Agreement is
held by a court of competent jurisdiction or other authority to be invalid, void
or unenforceable, the remainder of the terms, provisions, covenants and
restrictions of the Agreement shall remain in full force and effect and shall in
no way be affected, impaired or invalidated.

         This Right Certificate shall not be valid or binding for any purpose
until it shall have been countersigned by the Rights Agent.

         WITNESS the facsimile signature of the proper officers of the Company
and its corporate seal.  Dated as of ___________, ____.

Attest:                                Promus Hotel Corporation


By ______________________              By _________________________________
   Title:                                 Title:


Countersigned:

First Union National Bank, as Rights Agent


By_____________________________
  Authorized Signature

                                     B-3

<PAGE>


                     [Form of Reverse Side of Right Certificate]
                                           
                                  FORM OF ASSIGNMENT
                                           
               (To be executed by the registered holder if such holder
                     desires to transfer the Right Certificate.)

FOR VALUE RECEIVED _________________________________________
hereby sells, assigns and transfers unto_____________________________________
_____________________________________________________________________________
_____________________________________________________________________________


                            (Please print name and address
                                    of transferee)


Rights evidenced by this Right Certificate, together with all right, title 
and interest therein, and does hereby irrevocably constitute and appoint 
____________________ Attorney, to transfer the within Right Certificate on 
the books of the within-named Company, with full power of substitution.

Dated:________________________ 



                                       ______________________________________
                                       Signature
Signature Guaranteed:

_________________________________
                                         
         Signatures must be guaranteed by an "eligible guarantor institution" 
as defined in Rule 17Ad-15 promulgated under the Securities Exchange Act of 
1934, as amended.

                                     B-4

<PAGE>


______________________________________________________________________________


The undersigned hereby certifies that:

         (1)  the Rights evidenced by this Right Certificate are not
beneficially owned by and are not being assigned to an Acquiring Person or an
Affiliate or an Associate thereof; and

         (2)  after due inquiry and to the best knowledge of the undersigned,
the undersigned did not acquire the Rights evidenced by this Right Certificate
from any person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate thereof.

Dated:_________________________



                                       ______________________________
                                                  Signature

                                     B-5

<PAGE>

                             FORM OF ELECTION TO PURCHASE

                         (To be executed if holder desires to
                           exercise the Right Certificate.)

To:  Promus Hotel Corporation

         The undersigned hereby irrevocably elects to exercise ______________ 
Rights represented by this Right Certificate to purchase the Preferred Shares 
issuable upon the exercise of such Rights (or such other securities or 
property of the Company or of any other Person which may be issuable upon the 
exercise of the Rights) and requests that certificates for such shares be 
issued in the name of:

____________________________________________________________
            (Please print name and address)

____________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security 
or other identifying number

____________________________________________________________
            (Please print name and address)

____________________________________________________________

Dated: __________________

                                              ______________________________
                                              Signature

Signature Guaranteed:

____________________________

         Signatures must be guaranteed by an "eligible guarantor institution"
as defined in Rule 17Ad-15 promulgated under the Securities Exchange Act of
1934, as amended.

                                     B-6

<PAGE>

The undersigned hereby certifies that:

         (1)  the Rights evidenced by this Right Certificate are not
beneficially owned by and are not being assigned to an Acquiring Person or an
Affiliate or an Associate thereof; and

         (2)  after due inquiry and to the best knowledge of the undersigned,
the undersigned did not acquire the Rights evidenced by this Right Certificate
from any person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate thereof.

Dated:_______________

                                          ________________________
                                          Signature

______________________________________________________________________________

                                        NOTICE

         The signature in the foregoing Form of Assignment and Form of 
Election to Purchase must conform to the name as written upon the face of 
this Right Certificate in every particular, without alteration or enlargement 
or any change whatsoever.

         In the event the certification set forth above in the Form of 
Assignment or Form of Election to Purchase is not completed, the Company will 
deem the beneficial owner of the Rights evidenced by this Right Certificate 
to be an Acquiring Person or an Affiliate or Associate hereof and such 
Assignment or Election to Purchase will not be honored.

                                     B-7
<PAGE>
                                                                     EXHIBIT C

               AS DESCRIBED IN THE RIGHTS AGREEMENT, RIGHTS WHICH ARE 
           HELD BY OR HAVE BEEN HELD BY AN ACQUIRING PERSON OR ASSOCIATES 
       OR AFFILIATES THEREOF (AS DEFINED IN THE RIGHTS AGREEMENT) AND CERTAIN 
        TRANSFEREES THEREOF SHALL BECOME NULL AND VOID AND WILL NO LONGER BE 
                                     TRANSFERABLE.
                                           
                            SUMMARY OF RIGHTS TO PURCHASE
                                   PREFERRED SHARES

         On December ___, 1997 the Board of Directors of Promus Hotel 
Corporation (the "COMPANY") declared a dividend of one preferred share 
purchase right (a "Right") for each share of common stock, $.01 par value 
(the "COMMON SHARES"), of the Company outstanding at the close of business on 
December __, 1997 (the "RECORD DATE").  As long as the Rights are attached to 
the Common Shares, the Company will issue one Right (subject to adjustment) 
with each new Common Share so that all such shares will have attached Rights. 
 When exercisable, each Right will entitle the registered holder to purchase 
from the Company one one-hundredth of a share of Series A Junior 
Participating Preferred Stock (the "PREFERRED SHARES") at a price of $_____ 
per one one-hundredth of a Preferred Share, subject to adjustment (the 
"PURCHASE PRICE").  The description and terms of the Rights are set forth in 
a Rights Agreement, dated as of December ___, 1997, as the same may be 
amended from time to time (the "AGREEMENT"), between the Company and First 
Union National Bank, as Rights Agent (the "RIGHTS AGENT").

         Until the earlier to occur of (i) ten (10) days following a public 
announcement that a person or group of affiliated or associated persons has 
acquired, or obtained the right to acquire, beneficial ownership of 15% or 
more of the Common Shares (an "ACQUIRING PERSON") or (ii) ten (10) business 
days (or such later date as may be determined by action of the Board of 
Directors prior to such time as any person or group of affiliated persons 
becomes an Acquiring Person) following the commencement or announcement of an 
intention to make a tender offer or exchange offer the consummation of which 
would result in the beneficial ownership by a person or group of 15% or more 
of the Common Shares (the earlier of (i) and (ii) being called the 
"DISTRIBUTION DATE"), the Rights will be evidenced, with respect to any of 
the Common Share certificates outstanding as of the Record Date, by such 
Common Share certificate together with a copy of this Summary of Rights.

         The Agreement provides that until the Distribution Date (or earlier 
redemption exchange, termination, or expiration of the Rights), the Rights 
will be transferred with and only with the Common Shares.  Until the 
Distribution Date (or earlier redemption or expiration of the Rights), new 
Common Share certificates issued after the close of business on the Record 
Date upon transfer or new issuance of the Common Shares will contain a 
notation incorporating the Agreement by reference.  Until the Distribution 
Date (or earlier redemption, exchange, termination or expiration of the 
Rights), the surrender for transfer of any certificates for Common Shares, 
with or without such notation or a copy of this Summary of Rights, will also 
constitute the transfer of the Rights associated with the Common Shares 
represented by such certificate.  As soon as practicable following the 
Distribution Date, separate certificates evidencing the Rights ("RIGHT 
CERTIFICATES") will be mailed to holders of record of the Common Shares as of 
the close of business on the Distribution Date and such separate Right 
Certificates alone will evidence the Rights.


                                       C-1

<PAGE>

         The Rights are not exercisable until the Distribution Date.  The 
Rights will expire on December __, 2007, subject to the Company's right to 
extend such date (the "FINAL EXPIRATION DATE"), unless earlier redeemed or 
exchanged by the Company or terminated.

         Each Preferred Share purchasable upon exercise of the Rights will be 
entitled, when, as and if declared, to a minimum preferential quarterly 
dividend payment of $1.00 per share but will be entitled to an aggregate 
dividend of 100 times the dividend, if any, declared per Common Share.  In 
the event of liquidation, dissolution or winding up of the Company, the 
holders of the Preferred Shares will be entitled to a minimum preferential 
liquidation payment of $100 per share (plus any accrued but unpaid dividends) 
but will be entitled to an aggregate payment of 100 times the payment made 
per Common Share.  Each Preferred Share will have 100 votes and will vote 
together with the Common Shares.  Finally, in the event of any merger, 
consolidation or other transaction in which Common Shares are exchanged, each 
Preferred Share will be entitled to receive 100 times the amount received per 
Common Share.  Preferred Shares will not be redeemable.  These rights are 
protected by customary antidilution provisions.  Because of the nature of the 
Preferred Share's dividend, liquidation and voting rights, the value of one 
one-hundredth of a Preferred Share purchasable upon exercise of each Right 
should approximate the value of one Common Share.

         The Purchase Price payable, and the number of Preferred Shares or 
other securities or property issuable, upon exercise of the Rights are 
subject to adjustment from time to time to prevent dilution (i) in the event 
of a stock dividend on, or a subdivision, combination or reclassification of 
the Preferred Shares, (ii) upon the grant to holders of the Preferred Shares 
of certain rights or warrants to subscribe for or purchase Preferred Shares 
or convertible securities at less than the current market price of the 
Preferred Shares or (iii) upon the distribution to holders of the Preferred 
Shares of evidences of indebtedness, cash, securities or assets (excluding 
regular periodic cash dividends at a rate not in excess of 125% of the rate 
of the last regular periodic cash dividend theretofore paid or, in case 
regular periodic cash dividends have not theretofore been paid, at a rate not 
in excess of 50% of the average net income per share of the Company for the 
four quarters ended immediately prior to the payment of such dividend, or 
dividends payable in Preferred Shares (which dividends will be subject to the 
adjustment described in clause (i) above)) or of subscription rights or 
warrants (other than those referred to above).

         In the event that a Person becomes an Acquiring Person or if the 
Company were the surviving corporation in a merger with an Acquiring Person 
or any affiliate or associate of an Acquiring Person and the Common Shares 
were not changed or exchanged, each holder of a Right, other than Rights that 
are or were acquired or beneficially owned by the Acquiring Person (which 
Rights will thereafter be void), will thereafter have the right to receive 
upon exercise that number of Common Shares having a market value of two times 
the then current Purchase Price of the Right.  In the event that, after a 
person has become an Acquiring Person, the Company were acquired in a merger 
or other business combination transaction or more than 50% of its assets or 
earning power were sold, proper provision shall be made so that each holder 
of a Right shall thereafter have the right to receive, upon the exercise 
thereof at the then current Purchase Price of the Right, that number of 
shares of common stock of the acquiring company which at the time of such 
transaction would have a market value of two times the then current Purchase 
Price of the Right.


                                       C-2

<PAGE>

         At any time after a Person becomes an Acquiring Person and prior to 
the earlier of one of the events described in the last sentence of the 
previous paragraph or the acquisition by such Acquiring Person of 50% or more 
of the outstanding Common Shares, the Board of Directors may cause the 
Company to exchange the Rights (other than Rights owned by an Acquiring 
Person which will have become void), in whole or in part, for Common Shares 
at an exchange rate of one Common Share per Right (subject to adjustment).

         No adjustment in the Purchase Price will be required until 
cumulative adjustments require an adjustment of at least 1% in such Purchase 
Price.  No fractional Preferred Shares or Common Shares will be issued (other 
than fractions of Preferred Shares which are integral multiples of one 
one-hundredth of a Preferred Share, which may, at the election of the 
Company, be evidenced by depository receipts), and in lieu thereof, a payment 
in cash will be made based on the market price of the Preferred Shares or 
Common Shares on the last trading date prior to the date of exercise.

         The Rights may be redeemed in whole, but not in part, at a price of 
$.01 per Right (the "REDEMPTION PRICE") by the Board of Directors at any time 
prior to the time that an Acquiring Person has become such.  The redemption 
of the Rights may be made effective at such time, on such basis and with such 
conditions as the Board of Directors in its sole discretion may establish. 
Immediately upon any redemption of the Rights, the right to exercise the 
Rights will terminate and the only right of the holders of Rights will be to 
receive the Redemption Price.

         Until a Right is exercised, the holder thereof, as such, will have 
no rights as a stockholder of the Company beyond those as an existing 
stockholder, including, without limitation, the right to vote or to receive 
dividends.

         Any of the provisions of the Agreement may be amended by the Board 
of Directors of the Company for so long as the Rights are then redeemable, 
and after the Rights are no longer redeemable, the Company may amend or 
supplement the Agreement in any manner that does not adversely affect the 
interests of the holders of the Rights.

         A copy of the Agreement has been filed with the Securities and 
Exchange Commission as an Exhibit to a Current Report on Form 8-K.  A copy of 
the Agreement is available free of charge from the Company.  This summary 
description of the Rights does not purport to be complete and is qualified in 
its entirety by reference to the Agreement, which is incorporated herein by 
reference.


                                      C-3

<PAGE>

                                                                   
                                                                     
                                                  
                                       
                           PROMUS HOTEL CORPORATION
                         REGISTRATION RIGHTS AGREEMENT
                                       
          This Registration Rights Agreement, dated as of December __, 1997 
[the Merger Closing Date], is made by and among Promus Hotel Corporation, a 
Delaware corporation formerly named Parent Holding Corp. (the "Company"), GE 
Investment Hotel Partners I, Limited Partnership, a Delaware limited 
partnership ("GEHOP"), GE Investment Management Incorporated, a ___________ 
corporation ("GEIM"), and the Trustees of General Electric Pension Trust 
("GEPT"), MetPark Funding, Inc., a Delaware corporation ("Met Sub"), The 
Ueberroth Family Trust ("Ueberroth"), Ueberroth Investment Trust 
("Investment"), Mr. Richard J. Ferris ("Ferris"), Ridge Partners, L.P., a 
Delaware limited partnership ("Ridge") and Red Lion, a California Limited 
Partnership (the "RL Partnership").

          WHEREAS, the stockholders of the Company who are parties hereto 
(the "Holders") were parties to an Incorporation and Registration Rights 
Agreement dated as of December __, 1993, as amended, with Doubletree 
Corporation, a Delaware corporation ("Doubletree") (the "Doubletree 
Registration Rights Agreement") pursuant to which such Holders had certain 
registration rights with respect to shares of common stock  of Doubletree 
held by them; and

          WHEREAS, Doubletree and Promus Hotel Corporation, a Delaware 
corporation ("Old Promus") have combined their businesses (the "Merger") and 
formed the Company as a new holding company pursuant to the terms of the 
Agreement and Plan 

<PAGE>

of Merger dated as of September 1, 1997 among Doubletree, Old Promus and the 
Company; and

          WHEREAS, pursuant to the Merger, the outstanding shares of 
Doubletree common stock have been converted into shares of common stock, par 
value $.01 per share, of the Company ("Common Stock"); and

          WHEREAS, the Company has agreed to provide the Holders registration 
rights substantially identical to those held by such Holders pursuant to the 
Doubletree Registration Rights Agreement;

          NOW, THEREFORE, in consideration of the foregoing and intending to 
be legally bound, the Parties agree as follows:

          1.   CERTAIN DEFINITIONS .  As used in this Agreement, the 
following terms shall have the following respective meanings:

          "COMMISSION" means the United States Securities and Exchange 
Commission, or any other federal agency administering the Securities Act at 
the time.

          "ELIGIBLE SECURITIES" means the shares of Common Stock held by the 
Holders as of the date hereof, or acquired by them pursuant to (i) the 
exercise of options to purchase an aggregate of 20,000 shares of Doubletree 
Common Stock, issues on June 30, 1994, to GEHOP  (the "GEHOP Options") and 
(ii) the Warrants to purchase an aggregate of 262,753 shares of Doubletree 
Common Stock, issued on November 8, 1996, to PT Investments Inc. (the "GEPT 
Warrant"), it being understood that pursuant to the terms of the Merger 
Agreement, all obligations of Doubletree under the GEHOP Options 

                                       2
<PAGE>

and the GEPT Warrant shall have been assumed by the Company pursuant to the 
terms set forth in the Merger Agreement).  Any shares of Common Stock issued 
pursuant to the GEHOP Options and/or the GEPT Warrant will be aggregated 
together with shares of Common Stock owned by GEHOP in order to determine the 
amount of Eligible Securities or shares of Common Stock owned by GEHOP.

          "HOLDER" means a registered holder of outstanding Eligible 
Securities.

          "SECURITIES ACT" means the Securities Act of 1933, as amended, or 
any similar Federal statute, and the rules and regulations of the Commission 
thereunder, all as the same shall be in effect at the time.

          2.   ORGANIZATION OF THE COMPANY; REQUIRED REGISTRATION.

          (a)   At any time after the date of this Agreement, GEHOP, Met Sub 
or the RL Partnership may deliver to the Company a written request that the 
Company file and use its best efforts to cause to become effective a 
registration statement under the Securities Act with respect to such number 
of the Eligible Securities (a "Registration Request") owned by such Holder 
(the "Requesting Holder").  Promptly following receipt of a Registration 
Request, the Company shall deliver to all Holders (other than the Requesting 
Holder) a notice (the "Initiation Notice") of such receipt providing the 
identity of the Requesting Holder and the number of shares included in such 
Registration Request.  Except as otherwise provided in Section 2(b)(i)(A) 
hereof, the Company shall not be required to file and use its best efforts to 
cause to become effective, pursuant to a Registration Request under this 
Section 2, more than two registration statements at the 

                                       3
<PAGE>

demand of GEHOP, more than one registration statement at the demand of Met 
Sub, or more than four registration statements at the request of the RL 
Partnership.

          (b)  Within 20 days after the date on which the Company delivers the
Initiation Notice to all Holders, such date to be determined by the notice
provisions of Section 12(b) of this Agreement, the Company will use its best
efforts to register under the Securities Act, for public sale in accordance
with the method of disposition specified in such Registration Request, the
number of shares of Eligible Securities specified in such Registration Request
(and in all notices received from Holders within 20 days after their receipt of
the applicable Initiation Notice); PROVIDED, HOWEVER, that, in the case of a
Registration Request, the proportion that the number of Eligible Securities
requested for inclusion in the registration statement by any Holder (other than
the Requesting Holder) bears to the total number of Eligible Securities then
owned by such Holder shall not exceed the proportion that the number of
Eligible Securities specified in such Registration Request bears to the total
number of Eligible Securities then owned by the Requesting Holder.  The Company
will also be entitled to include in any registration statement filed pursuant
to a Registration Request, for sale in accordance with the method of
disposition specified in such Registration Request, such number of shares of
Common Stock as the Company shall desire to sell for its own account.  If the
method of sale designated is an underwritten public 

                                       4
<PAGE>

offering, the managing underwriter or underwriters must be reasonably 
acceptable to both the Requesting Holder (if any) and the Company, which 
acceptance shall not be unreasonably withheld.  Notwithstanding the foregoing 
provisions of this paragraph (b), to the extent that, in the opinion of the 
managing underwriter or underwriters (if the method of disposition shall be 
an underwritten public offering), marketing considerations require the 
reduction of the number of shares of Common Stock covered by any such 
registration, the number of shares of Common Stock to be registered and sold 
pursuant to such registration shall be reduced as follows:

               (i)  if the Requesting Holder shall be GEHOP and the
     Registration Request is not the last to which such Holder is entitled
     under Section 2(a) and this Section 2(b)(i), or if the Requesting Holder
     shall be the RL Partnership and the Registration Request is made pursuant
     to this Agreement and is not the first or last such request to which the
     RL Partnership is entitled:

        (A)    the number of shares of Eligible Securities to be registered on
               behalf of each Holder shall be reduced (to zero, if necessary)
               pro rata according to the number of shares requested to be
               registered by each Holder; provided, however, that in the case
               of the first Registration Request made by GEHOP and any
               registration request made by the RL Partnership (other than its
               first or last such Registration Request) if the number of shares
               of Eligible Securities requested to be registered by GEHOP or
               the RL Partnership, as the case may be, shall be reduced as a
               result of this Section 2(b)(i) by 20% or more, such Requesting
               Holder shall be entitled to request one registration in addition
               to (I) in the case of GEHOP, the two registration requests GEHOP
               is entitled to under Section 2(a) of this Agreement and (II) in
               the case of the RL Partnership, the four registration requests
               the RL Partnership is entitled to under Section 2(a) of this
               Agreement; and

                                       5
<PAGE>

        (B)    the number of shares of Common Stock to be registered on behalf
               of the Company, if any, shall not be reduced;

               (ii) if the Requesting Holder shall be Met Sub, or if the
     Requesting Holder shall be GEHOP exercising the last Registration Request
     to which it is entitled under Section 2(a) and Section 2(b)(i) of this
     Agreement, or if the Requesting Holder shall be the RL Partnership
     exercising the first or last Registration Request to which it is entitled
     under Section 2(a) of this Agreement:

        (A)    the number of Eligible Securities to be registered on behalf of
               each Holder (excluding the Requesting Holder) shall be reduced
               (to zero, if necessary) PRO RATA according to the number of
               shares requested to be registered by each Holder;

        (B)    if any additional reduction in the number of shares of Common
               Stock to be registered shall be necessary, in the opinion of the
               managing underwriter or underwriters, the number of shares of
               Common Stock to be registered on behalf of the Company shall be
               reduced (to zero, if necessary); and

        (C)    the number of shares of Eligible Securities to be registered on
               behalf of the Requesting Holder shall not be reduced; and

          (c)  Notwithstanding the foregoing provisions of this Section 2, 
the Company shall not be obligated to file a registration statement at the 
demand of any Holder pursuant to this Section 2 within 90 days following any 
underwritten public offering of Common Stock or of securities of the Company 
convertible into or exercisable or exchangeable for Common Stock.

                                       6
<PAGE>

          (d)  Notwithstanding the foregoing provisions of this Section 2, 
the Company may elect, by written notice given to Met Sub within 20 days 
after the Company's receipt of a Registration Request from Met Sub, in lieu 
of filing a registration statement at the demand of Met Sub, to purchase from 
Met Sub the number of Eligible Securities specified in Met Sub's Registration 
Request for cash equal to the Net Proceeds thereof.  "Net Proceeds" shall 
mean the estimated proceeds that Met Sub would have received from a public 
offering of the number of Eligible Securities specified in Met Sub's 
Registration Request, net of all underwriting discounts and selling 
commissions applicable to the sale of such Eligible Securities and the fees 
and expenses of counsel for Met Sub, determined pursuant to the following 
procedure:

               (i)  Met Sub may reach an agreement with the Company as to the
     amount of the Net Proceeds.

               (ii) If Met Sub and the Company cannot reach agreement as to the
     amount of the Net Proceeds within 30 days after the Company's receipt of
     Met Sub's Registration Request, either party may request that the Net
     Proceeds be determined according to the procedure set forth below.

               (iii)     Met Sub and the Company shall select an appraiser to
     determine the amount of the Net Proceeds as soon as practicable.  The
     appraiser shall be an investment banking firm of national reputation
     having expertise and experience in public offerings of securities of
     companies engaging in businesses similar to that of the Company.  The
     appraiser shall not be an affiliate of any Party.  If Met Sub and the
     Company are unable to agree on such selection, each of them shall select
     one appraiser meeting the criteria set forth in the two 

                                       7
<PAGE>

     immediately preceding sentences, and such appraisers shall select a third 
     appraiser meeting such criteria who shall determine the amount of the Net 
     Proceeds as soon as practicable.  The fees and expenses of all appraisers 
     shall be paid by the Company.  All other expenses of such appraisal shall 
     be paid by the Holder incurring the same or as the Holders shall otherwise 
     agree.

               (iv) The Company shall pay the amount of the Net Proceeds to Met
     Sub within 30 days after such amount has been determined by agreement or
     by appraisal, as the case may be.

          (e)  A Holder shall be deemed not to have exercised a Registration 
Request to which it is entitled under Section 2 if (i) the registration 
statement relating to such Registration Request does not become effective, or 
after it has become effective, is interfered with by any stop order, 
injunction or other order or requirement of the Commission or other 
governmental agency or court, in each case by reason of an act or omission by 
the Company, or (ii) the conditions to closing specified in the purchase 
agreement, or underwriting agreement entered into in connection with such 
registration statement are not satisfied, and the offering and sale of 
Eligible Securities to which such Registration Request relates is not 
consummated, because of an act or omission by the Company (other than a 
failure of the Company or any of its representatives to execute or deliver 
any closing certificate by reason of facts or circumstances not within the 
control of the Company or such representatives) or (iii) at any time after a 
Party delivers a Registration Request and prior to the effectiveness of the 
registration statement relating thereto, the preparation of such registration 
statement is discontinued or such registration statement is withdrawn or 
abandoned, in each case at the request of the Requesting 

                                       8
<PAGE>

Holder, and such Requesting Holder has elected to pay and has paid to the 
Company in full all of the registration expenses (including, without 
limitation, Company registration expenses) referenced in Section 5 in 
connection with such registration statement.

          3.    PIGGYBACK REGISTRATION.

          (a)  if the Company at any time proposes to register Common Stock 
under the Securities Act for sale to the public, whether for its own account 
or for the account of other security holders or both (except with respect to 
registration statements subject to Section 2 or registration statements on 
Form S-8, S-4 or another form not available for registering the Eligible 
Securities for sale to the public), each such time it will give written 
notice to all Holders of its intention to do so.  Upon the written request of 
any Holder (a "Piggyback Request"), given within 20 days after the date on 
which the Company delivers the notice of proposed registration to all 
Holders, such date to be determined by the notice provisions of Section 12(c) 
of this agreement, the Company will use its best efforts to cause the 
Eligible Securities as to which registration shall have been so requested to 
be covered by the registration statement proposed to be filed by the Company.

          (b)  In the event that any registration statement described in this
Section 3 shall relate, in whole or in part, to an underwritten public offering
of shares of Common Stock, the Eligible Securities to be registered must be
sold through the same underwriters as have been selected by the Company or any
other person who initiated the filing of the registration statement by
exercising a right to require the Company to do so (a "Requesting Non-Party
Stockholder").  Otherwise, the method of distribution of the Eligible
Securities to be sold by any Holder making a Piggyback Request shall be as

                                       9
<PAGE>

specified therein.  The number of shares of Common Stock to be included in 
such registration statement on account of any person (other than the Company 
and any Requesting Non-Party Stockholder) may be reduced if and to the extent 
that the managing underwriter or underwriters shall be of the opinion that 
such inclusion would adversely affect the marketing of the total number of 
shares of Common Stock proposed to be sold, and the number of shares to be 
registered and sold by each person (other than the Company and any Requesting 
Non-Party Stockholder) shall be reduced pro rata according to the number of 
shares requested to be registered by such person.  Notwithstanding the 
foregoing provisions of this Section 3, the Company may withdraw any 
registration statement referred to in this Section 3 without thereby 
incurring any liability to any requesting Holder.

          4.   REGISTRATION PROCEDURES. If and whenever the Company is 
required by the provisions of Section 2 to effect the registration of any 
Eligible Securities under the Securities Act, the Company shall:

          (a)  prepare and file with the Commission a registration statement 
with respect to such securities which will permit the public sale thereof in 
accordance with the method of distribution specified in the applicable 
Registration Request, and the Company shall use its best efforts (i) to cause 
such registration statement to be filed within 60 days of receipt of the 
same, (ii) to cause such registration statement to be declared effective as 
promptly as practicable and (iii) to maintain the effectiveness of such 
registration statement for a period of not less than 90 days;

          (b)  promptly prepare and file with the Commission such amendments
and supplements to such registration statement and the prospectus used in
connection


                                       10
<PAGE>

therewith as may be necessary to effect and maintain the effectiveness of 
such registration statement for the period specified in Section 4(a) and as 
to comply with the provisions of the Securities Act with respect to the 
disposition of all Eligible Securities covered by such registration statement 
in accordance with the intended method of disposition set forth in such 
registration statement for such period, including such amendments or 
supplements as are necessary to cure any untrue statement or omission 
referred to in Section 4(e)(vi);

          (c)  provide to the managing underwriter or underwriters and not 
more than one counsel for all underwriters and to the Holders of Eligible 
Securities to be included in such registration statement and not more than 
one counsel for all such Holders (such counsel to be reasonably acceptable to 
the Company) the opportunity to participate in the preparation of (i) such 
registration statement, (ii) each prospectus relating thereto and included 
therein or filed with the Commission and (iii) each amendment or supplement 
thereto;

          (d)  make available for inspection by the parties referred to in 
Section 4(c) such financial and other information and books and records of 
the Company, and cause the officers, directors and employees of the Company, 
and counsel and independent certified public accountants of the Company, to 
respond to such inquiries, as shall be reasonably necessary, in the judgment 
of respective counsel to such Holders and such underwriter or underwriters, 
to conduct a reasonable investigation within the meaning of the Securities 
Act; PROVIDED, HOWEVER, that each such person shall be required to maintain 
in confidence and not to disclose to any other person any information or 
records reasonably designated by the Company in writing as being confidential 
until such time as


                                       11
<PAGE>

(i) such information becomes a matter of public record (whether by virtue of 
its inclusion in such registration statement or otherwise), (ii) such person 
shall be required to disclose such information pursuant to the subpoena or 
order of any court or other governmental agency or body having jurisdiction 
over the matter or (iii) such information is required to be set forth in such 
registration statement or the prospectus included therein or in an amendment 
to such registration statement or an amendment or supplement to such 
prospectus in order that such registration statement, prospectus, amendment 
or supplement, as the case may be, shall not contain an untrue statement of a 
material fact or omit to state therein a material fact required to be stated 
therein or necessary to make the statements therein not misleading, and such 
information has not been so set forth after the request by a Holder to such 
effect; and PROVIDED, FURTHER, that the Company need not make such 
information available, nor need it cause any officer, director or employee to 
respond to such inquiry, unless each such Holder and such counsel, upon the 
Company's request, execute and deliver to the Company an undertaking to 
substantially the same effect contained in the immediately preceding PROVISO;

          (e)  immediately notify the persons referred to in Section 4(c) and 
(if requested by any such person) confirm such advice in writing, (i) when 
such registration statement or any prospectus included therein or any 
amendment or supplement thereto has been filed and, with respect to such 
registration statement or any such amendment, when the same has become 
effective, (ii) of any material comments by the Commission with respect 
thereto or any request by the Commission for amendments or supplements to 
such registration statement or prospectus or for additional information, 
(iii) of the issuance by the Commission of any stop order suspending the 
effectiveness of such


                                      12
<PAGE>

registration statement or the initiation of any proceedings for that purpose, 
(iv) if at any time the representations and warranties of the Company 
contemplated by Section 4(l)(i) cease to be true and correct in all material 
respects, (v) of the receipt by the Company of any notification with respect 
to the suspension of the qualification of any Eligible Securities for sale in 
any jurisdiction or the initiation or threatening of any proceeding for such 
purpose or (vi) at any time when a prospectus is required to be delivered 
under the Securities Act, of the occurrence or failure to occur of any event, 
or any other change in law, fact or circumstance, as a result of which such 
registration statement, prospectus or any amendment or supplement thereto, or 
any document incorporated by reference in any of the foregoing, contains an 
untrue statement of a material fact or omits to state a material fact 
required to be stated therein or necessary to make the statements therein not 
misleading in light of the circumstances then existing;

          (f)  take reasonable efforts to obtain the withdrawal at the 
earliest practicable date of any order suspending the effectiveness of such 
registration statement or any post-effective amendment thereto;

          (g)  if requested by the managing underwriter or underwriters or 
the Holders of at least a majority of the Eligible Securities being sold in 
connection with an underwritten public offering, promptly incorporate in a 
prospectus supplement or post-effective amendment such information as such 
managing underwriter or underwriters or such Holders reasonably specify 
should be included therein relating to the terms of the sale of such Eligible 
Securities, including, without limitation, information with respect to the 
number of Eligible Securities being sold to such underwriters, the names and 
descriptions of such Holders, the purchase price being paid therefor by such 
underwriters


                                      13
<PAGE>

and any other terms of the underwritten (or best efforts underwritten) 
offering of the Eligible Securities to be sold in such offering; and make all 
required filings of such prospectus supplement or post-effective amendment 
promptly after notification of the matters to be incorporated in such 
prospectus supplement or post-effective amendment;

          (h)  furnish to each Holder of Eligible Securities included in such 
registration and each managing underwriter, if any, thereof an executed copy 
of such registration statement, each such amendment and supplement thereto 
(in each case including all exhibits thereto, whether or not such exhibits 
are incorporated by reference therein) and such number of copies of the 
prospectus included in such registration statement (including each 
preliminary prospectus and any summary prospectus) and each amendment or 
supplement thereto, in conformity with the requirements of the Securities 
Act, as such Holder and managing underwriter, if any, may reasonably request 
in order to facilitate the disposition of such Eligible Securities by such 
Holder or by the participating underwriters;

          (i)  use its best efforts to (i) register or qualify the Eligible 
Securities to be included in such registration statement under such other 
securities laws or blue sky laws of such jurisdictions as any Holder of such 
Eligible Securities and each managing underwriter, if any, thereof shall 
reasonably request, (ii) keep such registrations or qualifications in effect 
for so long as is necessary to effect the disposition of such Eligible 
Securities in the manner contemplated by the registration statement, the 
prospectus included therein and any amendment or supplement thereto and (iii) 
take any and all such actions as may be reasonably necessary or advisable to 
enable such Holder and any participating underwriter or underwriters to 
consummate the disposition in such


                                      14
<PAGE>

jurisdictions of such Eligible Securities; PROVIDED, HOWEVER, that the 
Company shall not be required for any such purpose to (A) qualify generally 
to do business as a foreign corporation or a broker-dealer in any 
jurisdiction wherein it would not otherwise be required to qualify but for 
the requirements of this Section 4(i), (B) subject itself to taxation in any 
such jurisdiction or (C) consent to general service of process in any such 
jurisdiction;

          (j)  cooperate with the Holders of the Eligible Securities included
in such registration and the managing underwriters, if any, to facilitate the
timely preparation and delivery of certificates representing Eligible
Securities to be sold, which certificates shall be printed, lithographed or
engraved, or produced by any combination of such methods, on steel engraved
borders and which shall not bear any restrictive legends; and, in the case of
an underwritten public offering, enable such Eligible Securities to be
registered in such names as the managing underwriter or underwriters may
request at least two business days prior to any sale of such Eligible
Securities;

          (k)  provide not later than the effective date of the registration
statement a CUSIP number for all Eligible Securities;

          (l)  enter into an underwriting agreement, engagement letter, 
agency agreement, "best efforts" underwriting agreement or similar agreement, 
as appropriate, and take such other actions in connection therewith as the 
Holders of at least a majority of the Eligible Securities to be included in 
such registration shall reasonably request in order to expedite or facilitate 
the disposition of such Eligible Securities, and in connection therewith, 
whether or not an underwriting agreement is entered into and whether or not 
the registration is an underwritten public offering, (i) make such


                                      15
<PAGE>

representations and warranties to the Holders of such Eligible Securities 
included in such registration and the underwriters, if any, in form, 
substance and scope as are customarily made in an underwritten public 
offering; (ii) obtain an opinion of counsel to the Company in customary form 
and covering such matters as are customarily covered by such an opinion as 
the Holders of at least a majority of such Eligible Securities and the 
managing underwriters, if any, may reasonably request, addressed to each 
selling Holder and the underwriters, if any, and dated the effective date of 
such registration statement (or, if such registration includes an 
underwritten public offering, dated the date of the closing under the 
underwriting agreement); (iii) obtain a "cold comfort" letter from the 
independent certified public accountants of the Company addressed to the 
Holders of the Eligible Securities included in such registration and the 
underwriters, if any, dated the effective date of such registration statement 
(and, if such registration includes an underwritten public offering, also 
dated the date of the closing under the underwriting agreement), such letter 
to be in customary form and covering such matters as are customarily covered 
by such letters; (iv) deliver such documents and certificates as may be 
reasonably requested by the Holders of at least a majority of the Eligible 
Securities included in such registration and the managing underwriter or 
underwriters, if any, to evidence compliance with clause (i) above and with 
any customary conditions contained in the underwriting agreement or other 
agreement entered into by the Company; and (v) undertake such obligations 
relating to expense reimbursement, indemnification and contribution as are 
provided in Sections 5, 6 and 7 hereof;

          (m)  make available to its security holders, as soon as reasonably 
practicable after the sale of Eligible Securities, an earning statement 
covering a period of


                                      16
<PAGE>

at least twelve months which shall satisfy the provisions of Section 11(a) of 
the Securities Act (including, at the option of the Company, pursuant to Rule 
158 thereunder); and

          (n)  otherwise use its best efforts to comply with all applicable 
rules and regulations of the Commission.

          The provisions of subsections (b) through (n) of this Section 4 
shall also apply to registrations pursuant to Section 3; PROVIDED, HOWEVER, 
that, for the purposes of this paragraph, the time period set forth in 
Section 4(b) during which the Company must file amendments or supplements to 
the registration statement and prospectus to keep such registration effective 
shall also be deemed to be 90 days.

          Notwithstanding the provisions of Section 4(a), the Company's 
obligation to file a registration statement, or cause such registration 
statement to become effective, shall be suspended for a period not to exceed 
90 days if there exists at the time material non-public information relating 
to the Company that, in the reasonable opinion of the Company, should not be 
disclosed.  In such an event, the Company shall promptly inform all Holders 
of the Company's decision to defer filing of a registration statement and 
shall notify all Holders promptly (but in any event not later than upon the 
expiration of the 90-day period specified in the immediately preceding 
sentence) of the recommencement of the Company's efforts to file the 
registration statement and to cause the registration statement to become 
effective.

          In connection with each registration of Eligible Securities 
hereunder, the Holders thereof will furnish to the Company in writing such 
information with respect to themselves and the proposed distribution by them 
as shall be reasonably necessary in


                                      17
<PAGE>

order to assure compliance with applicable federal and state securities laws. 
Each such Holder also agrees to notify the Company as promptly as 
practicable of any inaccuracy or change in information previously furnished 
by such Holder to the Company or of the occurrence of any other event, in 
either case as a result of which any prospectus relating to such registration 
contains an untrue statement of a material fact regarding such Holder or the 
distribution of such Eligible Securities or omits to state any material fact 
regarding such Holder or the distribution of such Eligible Securities 
required to be stated therein or necessary to make the statements therein not 
misleading in light of the circumstances then existing, and promptly to 
furnish to the Company any additional information required to correct and 
update such previously furnished information or required so that such 
prospectus shall not contain, with respect to such Holder or the distribution 
of such Eligible Securities, an untrue statement of a material fact or omit 
to state a material fact required to be stated therein or necessary to make 
the statements therein not misleading in light of the circumstances then 
existing.  Each such Holder further agrees that upon giving any notice 
referred to in the immediately preceding sentence, or upon receipt of any 
notice from the Company pursuant to Section 4(e)(vi) hereof, such Holder 
shall forthwith discontinue the disposition of Eligible Securities pursuant 
to the registration statement applicable to such Eligible Securities until 
such Holder shall have received copies of an amended or supplemented 
registration statement or prospectus, and if so directed by the Company, such 
Holder shall deliver to the Company (at the Company's expense) all copies, 
other than permanent file copies, then in such Holder's possession of the 
prospectus covering such Eligible Securities at the time of receipt of such 
notice.


                                      18
<PAGE>

          5.   EXPENSES.  The Company shall pay all expenses incurred in 
complying with Sections 2 and 3, including without limitation all 
registration and filing fees, printing expenses, fees and disbursements of 
counsel and independent public accountants for the Company, fees and expenses 
(including counsel fees) incurred in connection with complying with state 
securities or "blue sky" laws (other than those which by law must be paid by 
the selling security holders), fees of the National Association of Securities 
Dealers, Inc., transfer taxes, fees of transfer agents and registrars and 
stock exchange listing fees, but excluding all underwriting discounts and 
selling commissions applicable to the sale of Eligible Securities and fees 
and expenses of counsel for the selling Holders. All expenses of 
participating sellers other than those assumed by the Company in this 
Agreement shall be borne by such sellers in proportion to the number of 
shares sold by each seller or as they may otherwise agree.

          6.   INDEMNIFICATION.

          (a)  In the event of a registration of Eligible Securities under 
the Securities Act pursuant to Section 2 or 3, the Company shall indemnify 
and hold harmless each selling Holder, each underwriter of such Eligible 
Securities thereunder and each other person, if any, who controls such 
selling Holder or underwriter within the meaning of the Securities Act, 
against any losses, claims, damages or liabilities, joint or several, to 
which such selling Holder, underwriter or controlling person may become 
subject under the Securities Act or otherwise, and will reimburse each such 
selling Holder, underwriter and controlling person for any legal or other 
expenses reasonably incurred by them in connection with investigating or 
defending any such loss, claim, damage, liability or action, as such expenses 
are incurred, insofar as such losses, claims, damages or


                                     19
<PAGE>

liabilities (or actions in respect thereof) arise out of or are based upon 
any untrue statement or alleged untrue statement of any material fact 
contained in any registration statement under which such Eligible Securities 
were registered under the Securities Act pursuant to Section 2 or 3, any 
preliminary prospectus or final prospectus contained therein, or any 
amendment or supplement thereof, or arise out of or are based upon the 
omission or alleged omission to state therein a material fact required to be 
stated therein or necessary to make the statements therein not misleading; 
PROVIDED, HOWEVER, that the Company shall not be liable to any such selling 
Holder, underwriter or controlling person in any such case if and to the 
extent that any such loss, claim, damage or liability arises out of or is 
based upon an untrue statement or alleged untrue statement or omission or 
alleged omission made in conformity with information furnished by such 
selling Holder, underwriter or controlling person in writing specifically for 
use in such registration statement or prospectus.

          (b)  In the event of a registration of any of the Eligible 
Securities under the Securities Act pursuant to Section 2 or 3, each selling 
Holder of such Eligible Securities, severally and not jointly, will indemnify 
and hold harmless the Company, each underwriter and each person, if any, who 
controls the Company or any underwriter within the meaning of the Securities 
Act, each officer of the Company who signs the registration statement, each 
director of the Company, each other seller of securities registered by the 
registration statement covering such Eligible Securities and each person, if 
any, who controls such seller, against all losses, claims, damages or 
liabilities, joint or several, to which the Company or any such officer, 
director, underwriter, other seller or controlling person may become subject 
under the Securities Act or otherwise, and shall reimburse the

                                      20
<PAGE>

Company and each such officer, director, underwriter, other seller and 
controlling person for any legal or other expenses reasonably incurred by 
them in connection with investigating or defending any such loss, claim, 
damage, liability or action, but only to the extent that any such loss, 
claim, damage or liability (or action in respect thereof) arises out of or is 
based upon an untrue statement or alleged untrue statement or omission or 
alleged omission made in reliance upon and in conformity with information 
pertaining to such Holder furnished in writing to the Company by such Holder 
specifically for use in the registration statement or prospectus relating to 
such Eligible Securities.  Notwithstanding the immediately preceding 
sentence, the liability of each such Holder hereunder shall not in any event 
exceed the net proceeds received by such Holder from the sale of Eligible 
Securities covered by such registration statement.

          (c)  Promptly after receipt by an indemnified party hereunder of 
notice of the commencement of any action, such indemnified party, if a claim 
in respect thereof is to be made against an indemnifying party hereunder, 
shall notify such indemnifying party in writing thereof, but the omission so 
to notify such indemnifying party shall not relieve such indemnifying party 
from any liability that it may have to any indemnified party other than under 
this Section 6 and, unless the failure to so provide notice materially 
adversely affects or prejudices such indemnifying party's defense against any 
action, shall not relieve such indemnifying party from any liability that it 
may have to any indemnified party under this Section 6.  In case any such 
action shall be brought against any indemnified party and it shall notify an 
indemnifying party of the commencement thereof, such indemnifying party shall 
be entitled to participate in and, to the extent it shall wish, to assume and 
undertake the defense thereof with counsel reasonably

                                      21

<PAGE>

satisfactory to such indemnified party, and, after notice from such 
indemnifying party to such indemnified party of its election so to assume and 
undertake the defense thereof, such indemnifying party shall not be liable to 
such indemnified party under this Section 6 for any legal expenses 
subsequently incurred by such indemnified party in connection with the 
defense thereof other than reasonable costs of investigation and of liaison 
with counsel so selected; PROVIDED, HOWEVER, that, if the defendants in any 
such action include both the indemnified party and the indemnifying party and 
the indemnified party shall have reasonably concluded that there may be 
reasonable defenses available to it that are different from or additional to 
those available to the indemnifying party or if the interests of the 
indemnified party reasonably may be deemed to conflict with the interests of 
the indemnifying party, the indemnified party shall have the right to select 
a separate counsel and to assume and undertake the defense of such action, 
with the expenses and fees of such separate counsel and other expenses 
related to such defense to be reimbursed by the indemnifying party as 
incurred.

          (d)  No indemnifying party shall be liable for any amounts paid in 
a settlement effected without the consent of such indemnifying party, which 
consent shall not be withheld unreasonably.  No indemnifying party shall 
consent to entry of any judgment or enter into any settlement which does not 
include as an unconditional term thereof the giving by the claimant or 
plaintiff to the indemnified party of a release from all liability in respect 
of such claim or litigation.

          (e)  The reimbursements required by this Section 6 shall be made by 
periodic payments during the course of the investigation or defense, as and 
when bills are received and expenses incurred.

                                      22

<PAGE>

          7.   CONTRIBUTION.  If for any reason the indemnity set forth in 
Section 6 is unavailable or is insufficient to hold harmless an indemnified 
party, then the indemnifying party shall contribute to the amount paid or 
payable by such indemnified party as a result of the aggregate losses, 
claims, damages, liabilities and expenses of the nature contemplated by said 
indemnity (i) in such proportion as is appropriate to reflect the relative 
fault of the indemnifying party on the one hand and such indemnified party on 
the other (determined by reference to, among other things, whether the untrue 
statement of a material fact or omission to state a material fact relates to 
information supplied by the indemnifying party or such indemnified party and 
the parties' relative intent, knowledge, access to information and 
opportunity to correct or prevent such untrue statement or omission), or (ii) 
if the allocation provided by clause (i) above is not permitted by applicable 
law or provides a lesser sum to such indemnified party than the amount 
hereinafter calculated, in such proportion as is appropriate to reflect not 
only the relative fault of the indemnifying party and such indemnified party 
but also the relative benefits received by the indemnifying party on the one 
hand and such indemnified party on the other, as well as any other relevant 
equitable considerations.

          The Company and the Parties agree that it would not be just and
equitable if contribution pursuant to this Section 7 were determined by PRO
RATA allocation or by any other method of allocation which does not take
account of the equitable considerations referred to in the immediately
preceding paragraph.  The amount paid or payable by an indemnified party as a
result of the losses, claims, damages, liabilities or expenses referred to in
such paragraph shall be deemed to include, subject to the limitations set forth
above, any legal or other expenses reasonably incurred by such

                                      23

<PAGE>

indemnified party in connection with investigating or defending any such 
action or claim. Notwithstanding the provisions of this Section 7, a Holder 
shall not be required to contribute any amount in excess of the amount by 
which the net proceeds of the sale of Eligible Securities sold by such Holder 
and distributed to the public exceeds the amount of any damages which such 
Holder has otherwise been required to pay by reason of such untrue or alleged 
untrue statement or omission or alleged omission.  No person guilty of 
fraudulent misrepresentation (within the meaning of Section 11(f) of the 
Securities Act) shall be entitled to contribution from any person which is 
not guilty of such fraudulent misrepresentation.

          In the event that any terms of an indemnification or contribution 
provision contained in an underwriting agreement executed by or on behalf of 
the Company and a Holder differs from a provision in Section 6 or this 
Section 7, the provisions in such underwriting agreement shall determine the 
rights and obligations of the Company, such Holder and each underwriter that 
is a party thereto.

          8.   UNDERWRITING AGREEMENT.  If Eligible Securities are to be 
sold pursuant to a registration statement in an underwritten offering 
pursuant to Section 2 or 3, the Company and each selling Holder of Eligible 
Securities agrees to enter into a written agreement with the managing 
underwriter or underwriters selected in the manner herein provided in such 
form and containing such provisions as are reasonably satisfactory to the 
Company and each such selling Holder and as are customary in the securities 
business for such an arrangement among such underwriter or underwriters, each 
such selling Holder and companies of the Company's size and investment 
stature.  No Holder of

                                      24

<PAGE>

Eligible Securities may participate in any underwritten sale of Eligible 
Securities pursuant to Section 2 or 3 hereof unless such Holder (i) agrees to 
sell such Holder's securities in accordance with any underwriting 
arrangements approved by the persons entitled hereunder to specify the method 
of distribution of the securities being registered and (ii) completes and 
executes all questionnaires, powers of attorney, indemnities, underwriting 
agreements and other documents reasonably required under the terms of such 
underwriting arrangements.

          9.   LIMITATIONS ON SUBSEQUENT REGISTRATION RIGHTS.  If, subsequent 
to the date hereof, the Company grants to any holders or prospective holders 
of the Company's securities the right to require that the Company register 
any securities of the Company under the Securities Act, such registration 
rights shall be granted subject to the rights of the Holders to include all 
or part of their Eligible Securities in any such registration on the terms 
and conditions set forth in Section 3.

          10.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company 
represents and warrants to the Holders as follows:

          (a)  The execution, delivery and performance of this Agreement by the
Company have been duly authorized by all requisite action and will not violate
any provision of law, any order of any court or other agency of government, the
certificate of incorporation or By-laws of the Company or any provision of any
indenture, agreement or other instrument by which the Company or any of its
properties or assets is bound and will not conflict with, result in a breach of
or constitute (with due notice or lapse of time or both) a default under any
such indenture, agreement or other instrument or result in the

                                      25

<PAGE>

creation or imposition of any lien, charge or encumbrance of any nature 
whatsoever upon any of the properties or assets of the Company.

          (b)  This Agreement has been duly executed and delivered by the
Company and constitutes the legal, valid and binding obligation of the Company,
enforceable in accordance with its terms.

          11.  RULE 144.

The Company hereby covenant with the Holders of Eligible Securities that if 
and to the extent it shall be required to do so under the Securities Exchange 
Act of 1934, as amended, and the rules and regulations thereunder, as the 
same may be amended and in effect at the time (the "Exchange Act"), the 
Company shall timely file the reports required to be filed by it under the 
Exchange Act or the Securities Act (including, but not limited to, the 
reports under Sections 13 and 15(d) of the Exchange Act referred to in 
subparagraph (c)(1) of Rule 144 adopted by the Commission under the 
Securities Act) and shall take such further action as any Holder of Eligible 
Securities may reasonably request, all to the extent required from time to 
time to enable such Holder to sell Eligible Securities without registration 
under the Securities Act within the limitations of the exemption provided by 
Rule 144 under the Securities Act, as such Rule may be amended from time to 
time, or any similar rule or regulation hereafter adopted by the Commission.  
Upon the request of any Holder of Eligible Securities, the Company shall 
deliver to such Holder a written statement as to whether it has complied with 
such requirements

          12.  MISCELLANEOUS.

                                      26

<PAGE>

          (a)  All covenants and agreements contained in this Agreement by or
on behalf of any of the signatories shall bind and inure to the benefit of the
respective successors and assigns of the signatories, whether so expressed or
not.  If any transferee of any Holder of Eligible Securities shall acquire
Eligible Securities in any manner (other than by way of a registered public
offering), whether by operation of law or otherwise, such Eligible Securities
shall be held subject to all of the terms of this Agreement, and by taking and
holding such Eligible Securities such transferee shall be entitled to receive
the benefits of and be conclusively deemed to have agreed to be bound by and to
perform all of the terms and provisions of this Agreement.  The benefits to
which any such transferee shall be entitled shall include, without limitation,
the rights to register Eligible Securities under Sections 2 and 3 hereof;
PROVIDED, HOWEVER, that any such transferee shall not be entitled to deliver to
the Company a Registration Request pursuant to Section 2 hereof unless such
transferee acquired from its transferor at least a majority of the Eligible
Securities owned by such transferor at the time of the transfer.  If the
Company shall so request, any such successor or assign shall agree in writing
to acquire and hold the Eligible Securities subject to all of the terms hereof.
One or more transferees of Eligible Securities owned by the RL Partnership may
deliver a Registration Request pursuant to Section 2 if (i) such transferees
have received such Eligible Securities in compliance with applicable Federal
and state securities laws, (ii) such transferees have agreed in a writing, in
form and substance reasonably satisfactory to the Company, to be bound by this
Agreement, with the same duties and obligations as a Holder thereunder, and
(iii) the transferee or transferees that so deliver such Registration Request
hold at least a majority of the then outstanding Exchange Shares which have not
been sold pursuant to a

                                      27

<PAGE>

registered public offering.  This Section 12(a) shall not be deemed to create 
any right on the part of any Holder to transfer Eligible Securities in 
contravention of any restriction thereon contained in any other agreement to 
which such Holder is a party.

          (b)  All notices, consents and other communications under the 
Registration Rights Agreement required or permitted to be transmitted to the 
parties named below shall be in writing and shall be deemed to have been duly 
given when (a) delivered by hand, (b) sent by telecopier (with receipt 
confirmed), provided that a copy is mailed by registered mail, return receipt 
requested, or (c) when received by the addressee, if sent by Express Mail, 
Federal Express or other express delivery service (receipt requested), in 
each case to the appropriate addresses and telecopier numbers set forth below 
(or to such other addresses and telecopier numbers as a party may designate 
as to itself by notice to the other parties):

               (i)  if to the Company, to it at Promus Hotel Corporation, 755
     Crossover Lane, Memphis, TN 38117, Attention: General Counsel (telecopy:
     (901) 374-5636;

               (ii) if to GEHOP, c/o General Electric Investment Hotel Partners
     I, Limited Partnership, c/o General Electric Investment Corporation, 3003
     Summer Street, P.O. Box 7900, Stamford CT  06905, Attention: Asset Manager-
     Real Estate (telecopier no. (203) 326-4179), with a copy to General
     Electric Investment Corporation, 3003 Summer Street, P.O. Box 7900,
     Stamford CT 06905, Attention: General Counsel-Real Estate (telecopier no.
     (203) 326-4179, a copy to Wolf, Block, Schorr and Solis-Cohen, Packard
     Building, 12th Floor, S. E. Corner of 15th and Chestnut Streets,
     Philadelphia, PA 19102, Attention:  Alvin H.

                                      28

<PAGE>

     Dorsky, Esq. (telecopier no. (215) 977-2346), and a copy to Dewey 
     Ballantine, 1301 Avenue of the Americas, New York, NY 10019, Attention:
     Sanford W. Morhouse, Esq. (telecopier no. (212) 259-6333);

               (iii)     if to Met Sub, c/o Metropolitan Life Insurance
     Company, One Madison Avenue, New York, NY  10010, Attention:  Mr. John C.
     Morrison, Jr. (telecopier no. (212) 578-3910), with a copy to Law
     Department, Metropolitan Life Insurance Company, One Madison Avenue, 
     New York, NY  10010, Attention:  John C. Kelsh, Esq. (telecopier no. 
     (212) 779-1490);

               (iv) if to Ferris, to Mr. Richard J. Ferris, 14363 Ridge Road,
     Northbrook, IL 60062 (telecopier no. (708) 498-2575);

               (v)  if to Ridge,  to it c/o Mr. Richard J. Ferris, 1436 Ridge
     Road, Northbrook, IL 60062 (telecopier no. (708) 498-2575);

               (vi) if to Investment, to it c/o Mr. Peter Ueberroth, Contrarian
     Group, Inc., 500 Newport Center Drive, Suite 900, Newport Beach, CA 92660
     (telecopier no. (714) 720-9123);

               (vii)     if to the RL Partnership to Red Lion, a California
     Limited Partnership, c/o Kohlberg Kravis Roberts & Co., 2800 Sand Hill
     Road, Suite 200, Menlo Park, CA 94025; telephone (415) 233-6560
     (telecopier no. (415) 233-6561) ; and

               (viii)    if to Ueberroth, to Mr. Peter V. Ueberroth, Contrarian
     Group, Inc., 500 Newport Center Drive, Suite 900, Newport Beach, CA 92660
     (telecopier no. (708) 720-9123).

                                      29

<PAGE>

          (c)  This Agreement shall be governed by and construed in accordance
with the laws of the State of New York.

          (d)  This Agreement may not be amended or modified, and no provision
hereof may be waived, except in writing, and such writing shall only be
effective with respect to a Party who has executed such writing; PROVIDED,
HOWEVER that any such amendment, modification or waiver shall only be required
to be so executed by a Party the rights of which under this Agreement would be
adversely affected in any material respect by such amendment, modification or
waiver.  The failure of any of the Parties to insist upon strict adherence to
any term of this Agreement on any occasion.

          (e)  This Agreement may be executed in two or more counterparts, each
of which shall be deemed in original, but all of which together shall
constitute one and the same instrument.

          (f)  The Parties acknowledge that there may be no adequate remedy at
law if any Party fails to perform any of its obligations hereunder and that
each Party may be irreparably harmed by any such failure, and accordingly agree
that each Party, in addition to any other remedy to which it may be entitled in
law or in equity, shall be entitled to compel specific performance of the
obligations of any other Party under this Agreement in accordance with the
terms and conditions of this Agreement in any court of the United States or any
state thereof having jurisdiction. The headings in this Agreement are for
convenience of reference only and shall not limit or otherwise affect the
meaning hereof.

          (g)  In the event that any one or more of the provisions contained
herein, or the application thereof in any circumstances, is held invalid,
illegal or unenforceable in any respect for any reason, the validity, legality
and enforceability of any such provision

                                      30

<PAGE>

in every other respect and of the remaining provisions contained herein shall 
not be in any way impaired thereby, it being intended that all of the rights 
and privileges of the Holders shall be enforceable to the fullest extent 
permitted by law.

          (h)  This Agreement is intended by the parties as a final 
expression of their agreement and a complete and exclusive statement of the 
agreement and understanding of the parties hereto in respect of the subject 
matter contained herein and therein.  There are no restrictions, promises, 
warranties or undertakings other than those set forth or referred to herein 
or therein.  This Agreement supersedes all prior agreements and 
understandings between the Parties with respect to such subject matter.

          (i)  EXCEPT AS OTHERWISE PROVIDED IN SECTION 12(f) HEREOF, EACH PARTY
IRREVOCABLY AGREES THAT ALL DISPUTES IN ANY WAY, MANNER OR RESPECT ARISING OUT
OF OR FROM OR RELATED TO THIS AGREEMENT SHALL BE RESOLVED BY ARBITRATION IN THE
CITY OF NEW YORK, STATE OF NEW YORK, UNDER THE RULES OF THE AMERICAN
ARBITRATION ASSOCIATION.  The arbitrator to resolve any such dispute shall be
selected by the Parties who are involved in the dispute, shall have expertise
and experience in the resolution of disputes similar to the dispute to be
resolved and shall not be an affiliate of any Party.  If such Parties are
unable to agree on such selection, each such Party select one arbitrator
meeting the criteria set forth in the immediately preceding sentence and such
arbitrators shall select an arbitrator meeting such criteria to resolve such
dispute as soon as practicable.  The fees and expenses of any arbitrator
selected by a Party shall be paid by such Party; the fees and expenses of any
other arbitrators shall be shared equally by the Parties who are involved in
the dispute.

                                      31

<PAGE>

          IN WITNESS WHEREOF, the Parties hereto have executed this Agreement 
as of the date first written above.

PROMUS HOTEL CORPORATION                  METPARK FUNDING, INC.


By:_______________________________        By: _______________________________
   Name:                                      Name:
   Title:                                     Title:


GE INVESTMENT HOTEL PARTNERS I,           RIDGE PARTNERS, L.P.
 LIMITED PARTNERSHIP

By: GE Investment Management              By: Kelrick, Inc., its general partner
    Incorporated, its general partner


    By: __________________________            By: ___________________________
        Name:                                     Name:
        Title:                                    Title:


                                          THE UEBERROTH FAMILY TRUST


__________________________________        By: _______________________________
Richard J. Ferris                             Peter V. Ueberroth, Trustee


__________________________________        THE UEBERROTH INVESTMENT TRUST
Peter V. Ueberroth


                                          By: _______________________________
                                              Alice J. Saviez, Trustee


<PAGE>

GE INVESTMENT HOTEL PARTNERS I,           RED LION, a California Limited
 LIMITED PARTNERSHIP                       Partnership

By: GE Investment Management              By: RLA-GP Inc., its general partner
    Incorporated, its general partner


    By: __________________________        By: _______________________________
        Name:                                 Name:
        Title:                                Title:


<PAGE>
                                                                     EXHIBIT 5.1
 
                         [LATHAM & WATKINS LETTERHEAD]
 
                               November 14, 1997
 
Parent Holding Corp.
755 Crossover Lane
Memphis, Tennessee 38117
 
        Re:  Registration Statement on Form S-4; Maximum of
           91,850,830 shares of Common Stock, par value $.01 per share.
 
Ladies and Gentlemen:
 
    In connection with the registration by Parent Holding Corp., a Delaware
corporation (the "Company"), of a maximum of 91,850,830 shares of common stock
of the Company, par value $.01 per share (the "Shares"), under the Securities
Act of 1933, as amended (the "Act"), on Form S-4 filed with the Securities and
Exchange Commission (the "Commission") on November 14, 1997 (the "Registration
Statement"), you have requested our opinion with respect to the matters set
forth below.
 
    In our capacity as your counsel in connection with such registration, we are
familiar with the proceedings taken and proposed to be taken by the Company in
connection with the authorization and issuance of the Shares, and for the
purposes of this opinion, have assumed such proceedings will be timely completed
in the manner presently proposed. In addition, we have made such legal and
factual examinations and inquiries, including an examination of originals or
copies certified or otherwise identified to our satisfaction of such documents,
corporate records and instruments, as we have deemed necessary or appropriate
for purposes of this opinion.
 
    In our examination, we have assumed the genuineness of all signatures, the
authenticity of all documents submitted to us as originals, and the conformity
to authentic original documents of all documents submitted to us as copies.
 
    We are opining herein as to the effect on the subject transaction only of
the General Corporation Law of the State of Delaware, and we express no opinion
with respect to the applicability thereto, or the effect thereon, of the laws of
any other jurisdiction or any other Delaware laws or as to any matters of
municipal law or the laws of any local agencies within any state.
 
    Subject to the foregoing, it is our opinion that the Shares to be issued in
connection with the merger of Promus Acquisition Corp. with and into Promus
Hotel Corporation and Doubletree Acquisition Corp. with and into Doubletree
Corporation have been duly authorized, and, upon the filing of Certificates of
Merger with the Secretary of State of the State of Delaware and issuance and
delivery thereof in the manner contemplated by the Registration Statement, will
be validly issued, fully paid and nonassessable.
 
    We consent to your filing this opinion as an exhibit to the Registration
Statement and to the reference to our firm contained under the heading "Legal
Matters" in the Joint Proxy Statement/Prospectus included therein.
 
                                          Very truly yours,
 
                                          LATHAM & WATKINS

<PAGE>
                                                                     EXHIBIT 8.1
 
                         [LATHAM & WATKINS LETTERHEAD]
 
                               November 14, 1997
 
Promus Hotel Corporation
755 Crossover Lane
Memphis, Tennessee 38117
 
        Re:  Registration Statement on Form S-4 of Parent Holding Corp.
 
Ladies and Gentlemen:
 
    We have served as special counsel to Promus Hotel Corporation, a Delaware
corporation (the "Company"), in connection with the proposed transactions (the
"Mergers") contemplated by the Agreement and Plan of Merger, dated as of
September 1, 1997 (the "Merger Agreement"), among the Company, Doubletree
Corporation, a Delaware corporation ("Doubletree"), and Parent Holding Corp., a
Delaware corporation ("Parent"). As special counsel, we have participated in the
preparation of the above-referenced Registration Statement and the exhibits
thereto filed with the Securities and Exchange Commission (the "Registration
Statement"), including a Joint Proxy Statement/Prospectus of Promus and
Doubletree, dated November 14, 1997 (the "Proxy Statement"). Capitalized terms
not defined herein have the meanings ascribed to them in the Proxy Statement.
 
    The facts, as we understand them, are set forth in the Proxy Statement
included in the Registration Statement. Based on such facts, it is our opinion
that the material United States federal income tax consequences to stockholders
of the Company expected to result from the Mergers contemplated by the Merger
Agreement, under currently applicable law, are as set forth under the caption
"The Merger -- Certain Federal Income Tax Consequences" on pages 45 through 47
of the Proxy Statement included in the Registration Statement. You have not
requested, and we do not express, an opinion concerning any other tax
consequences of the Mergers.
 
    This opinion is based on current provisions of the Internal Revenue Code of
1986, as amended, applicable Treasury regulations promulgated thereunder, and
judicial and administrative decisions and rulings, all of which are subject to
change either prospectively or retroactively. Also, any variation or difference
from the facts as set forth in the Proxy Statement included in the Registration
Statement and incorporated herein might affect the conclusion stated herein.
 
    We consent to the filing of this opinion as an exhibit to the Registration
Statement and to the use of our name under the caption "The Merger--Certain
Federal Income Tax Consequences" and "Legal Matters in the Proxy Statement
included in the Registration Statement.
 
                                          Very truly yours,
                                          LATHAM & WATKINS

<PAGE>
                                                                     EXHIBIT 8.2
 
                       [DEWEY BALLANTINE LLP LETTERHEAD]
 
November 14, 1997
 
Doubletree Corporation
410 North 44th Street
Suite 700
Phoenix, AZ 85008
 
Ladies and Gentlemen:
 
    We have acted as special counsel to Doubletree Corporation, a Delaware
corporation, ("Doubletree") in connection with the proposed transactions (the
"Mergers") contemplated by the Agreement and Plan of Merger dated as of
September 1, 1997 (the "Merger Agreement") among Doubletree, Promus Hotel
Corporation, a Delaware corporation ("Promus"), and Parent Holding Corp., a
Delaware corporation ("Parent"). In that connection, we have participated in the
preparation of a registration statement under the Securities Act of 1933 on Form
S-4 (the "Registration Statement"), including a Joint Proxy Statement/
Prospectus of Doubletree and Promus dated November 14, 1997 (the "Proxy
Statement").
 
    You have requested our opinion as to the accuracy of the description in the
Registration Statement of certain federal income tax consequences to holders of
shares of Doubletree common stock ("Doubletree Common Stock"). In rendering our
opinion, we have examined the Merger Agreement, the Registration Statement, the
Proxy Statement and such other documents and corporate records as we have deemed
necessary or appropriate. In addition, we have assumed (i) the Mergers will be
consummated in the manner contemplated in the Proxy Statement and in accordance
with the provisions of the Merger Agreement, (ii) the statements concerning the
Mergers set forth in the Proxy Statement are accurate and complete, (iii) we
will deliver an opinion (the "Opinion") to you on the Closing Date, based upon
reasonably requested representation letters, to the effect that the merger of
Doubletree Acquisition Corp., a Delaware corporation and a wholly owned
subsidiary of Parent, with and into Doubletree will be treated for federal
income tax purposes as a reorganization described in section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code") and/or, taken together
with the merger of Promus Acquisition Corp., a Delaware corporation and a wholly
owned subsidiary of Parent, with and into Promus, as a transfer of property to
Parent by holders of Doubletree Common Stock described in section 351 of the
Code, and (iv) the Doubletree Merger will be treated for federal income tax
purposes in accordance with the Opinion.
 
    On the basis and subject to (i) the accuracy of the statements and
representations contained in the materials referred to above and the above
assumptions and (ii) our considerations of such other matters as we have deemed
necessary, it is our opinion that under present law the material federal income
tax consequences to certain holders of Doubletree Common Stock are as set forth
in the Proxy Statement under the heading "The Merger--Certain Federal Income Tax
Consequences." You have not requested, and we do not express, an opinion
concerning any other tax consequences of the Mergers. This opinion is not to be
used, circulated, quoted or otherwise referred to for any purpose without our
express written permission.
 
    We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to us in the section captioned "The
Merger--Certain Federal Income Tax Consequences" in the Proxy Statement
constituting a part of the Registration Statement. In giving this consent we do
not hereby admit that we come within the category of persons whose consent is
required under Section 7 of the
<PAGE>
Securities Act of 1933, as amended, or the rules and regulations of the
Securities and Exchange Commission thereunder.
 
                                          Very truly yours,
                                          DEWEY BALLANTINE LLP
 
                                       2

<PAGE>

                                 EMPLOYMENT AGREEMENT
                                           

    THIS AGREEMENT, made as of the ___ day of November, 1997, between Parent
Holding Corp., a Delaware corporation with its executive offices at 755
Crossover Lane, Memphis, Tennessee (the "Company") and Raymond E. Schultz (the
"Executive").  The Company and the Executive agree as follows:

1.  EFFECTIVE DATE AND TERM.

    The Company desires to secure the services of the Executive and the
Executive is willing to execute this Agreement with respect to his employment. 
The employment of the Executive shall become effective at the Effective Time
under the Agreement of Plan of Merger (the "Merger Agreement") dated as of
September 1, 1997 among Doubletree Corporation, Promus Hotel Corporation
("Promus") and Parent Holding Corp. (the "Effective Time"), and shall expire on
December 31, 1999. This Agreement is effective upon its execution by the parties
hereto and supersedes any prior employment agreement between Executive and
Promus; provided, however, that the obligation of the parties with respect to
the employment of the Executive shall only become operative upon the occurrence
of the Effective Time under the Merger Agreement.  If the Merger Agreement is
abandoned or for any other reason the transactions contemplated thereby are not
consummated, this Agreement shall be null and void and the parties shall have no
further obligations hereunder, and any agreement between the Executive and
Promus shall remain in full force and effect.

2.  AGREEMENT OF EMPLOYMENT.

    The Company agrees to, and hereby does, employ the Executive, and the 
Executive agrees to, and hereby does accept, employment by the Company, in a 
full-time capacity, pursuant to the provisions of this Agreement and of the 
By-Laws of the Company and subject to the control of the Board of Directors 
of the Company (the "Board").  The Executive shall, effective as of the 
Effective Time, hold the position of Chief Executive Officer and Chairman of 
the Board of the Company.  It is hereby understood that the foregoing 
requirements regarding the Executive's position are subject to the By-Laws of 
the Company, which require a vote of at least 75% of the members of the Board 
to change such position.

3.  EXECUTIVE'S OBLIGATIONS.

    During the period of his service under this Agreement, the Executive shall
devote substantially all of his time and energies during business hours to the
supervision and conduct, faithfully and to the best of his ability, of the
business and affairs of the Company and to the furtherance of its interests, and
to such other duties as directed by the Board.

                                       1
<PAGE>

4.  COMPENSATION.

    (a)  The Company shall pay to Executive a salary at the rate of $________
per year, in equal bi-weekly installments; provided, however, that the Human
Resources Committee of the Board (the ''Human Resources Committee") shall in
good faith review the salary of the Executive, on an annual basis, with a view
to consideration of appropriate merit increases in such salary. In addition,
during the term of this Agreement, the Executive shall be entitled to
participate in incentive compensation programs and to receive employee benefits
and perquisites at least as favorable to the Executive as those provided to
Executive as of the Effective Time, and as may be enhanced for all senior
officers.  Such benefits include, but are not limited to (i) the annual bonus
plan for which senior executives of the Company are generally eligible, (ii)
awards under any stock option, restricted stock, or equity based incentive
compensation plan or arrangement maintained by the Company for which senior
executives of the Company are generally eligible, (iii)  all employee benefit
plans, programs and arrangements of the Company for which senior executives of
the Company are generally eligible, and (iv) all benefits and perquisites being
provided to the Executive by Promus immediately prior to the Effective Time,
including, but not limited to, the "rabbi trust" (provided pursuant to the
escrow agreement dated June 30, 1995, as amended (the "Escrow Agreement")) which
will continue in full force subject to its terms and conditions and the
obligations of which will be assumed or guaranteed by the Company. 

    (b) Executive shall also be entitled to the benefits under his Severance
Agreement with Promus dated September 1, 1997, a copy of which is attached
hereto as Exhibit A (the "Severance Agreement"), which will continue in force
subject to its terms and conditions including the termination and amendment
provisions thereof, and which will affect the Company's obligations under this
Agreement as described in Section 10 hereof.

    (c)  The Executive will use the Company's aircraft for security purposes
for himself and his family (with standard charges or tax liability for imputed
income for non-employee family members and for non-Company business usage).  The
Company will also provide Executive with appropriate security arrangements at
his residence.

5.  TERMINATION FROM EMPLOYMENT.

(a)  After the date of Executive's termination from employment at any time,
including termination by resignation ("Date of Termination"), he will be
entitled to participate at the Company's expense for his lifetime in the
Company's group health insurance plans applicable to corporate executives,
including family coverage as applicable (medical, dental and vision coverage). 
It is understood that the Executive will be subject to income tax on the cost of
the benefits provided to him after his termination.  His group health insurance
benefits after any termination of employment will not be less than those offered
to corporate officers of the 

                                       2
<PAGE>

Company, and he will be entitled to any later enhancements in such benefits. 
His benefits will be the same as normally provided to other retired management
directors pursuant to the policy adopted by the Human Resources Committee of
Promus on May 26, 1995 (except to the extent he voluntarily elects not to
participate in any plan).

(b) If Executive is terminated without Cause or voluntarily resigns for any 
reason prior to December 31, 1999, unvested stock options and restricted 
stock scheduled to vest over the next two years shall immediately vest upon 
the date of termination, and all other awards of stock options and restricted 
stock which have been granted to the Executive shall continue to become 
vested and exercisable following termination at the same times and on the 
same basis as if the Executive had remained employed by the Company. If 
Executive retires on or after December 31, 1999, all unvested stock options 
and restricted stock shall immediately vest upon the date of retirement. 
Stock options, once vested, shall remain exercisable following the vesting 
thereof until the expiration of the original full term.

(c) After the date of Executive's termination of employment, his Executive
Deferred Compensation ("EDCP") account and any other deferred compensation
balances will continue to be protected by the Escrow Agreement, if it is in
force on the date of termination, subject to the terms and conditions of the
Escrow Agreement, including its termination and amendment provisions. Executive
will become vested at the retirement rate under the EDCP on the date of such
termination (if not already vested according to the terms of the plan).

(d) Unless Executive is terminated for Cause, the Company will pay the cost 
of an office and a secretary for Executive in a mutually agreeable location 
off of the premises of the Company's headquarters for a period of five years 
after Executive's termination.

6.  TERMINATION WITHOUT CAUSE OR RESIGNATION WITH GOOD REASON.

    6.01    The Executive shall be treated as having incurred a "Covered
Termination" hereunder if his employment is terminated (i) by the Company other
than for Cause (as defined in Section 11.01 hereof) or (ii) by the Executive for
Good Reason (as defined in Section 11.02 hereof). The Executive shall not be
treated as having incurred a Covered Termination if his employment is terminated
as a result of death or disability, as provided in Sections 8 and 9 hereof,
respectively.

    6.02    (a)  The amount of the severance payment to be paid to the
Executive upon a Covered Termination shall be the amount determined by
multiplying 3.00 times the sum of:

              (1) the Executive's Annual Base Salary as in effect immediately
prior to the Date of Termination; plus, 

              (2) the Executive's Bonus Amount applicable for the fiscal year
in which the Date of Termination occurs; plus, 

              (3) a benefit allowance of 25% of the Executive's Annual Base
Salary as in effect immediately prior to the Date of Termination.

            (b)  In addition to the severance payment provided under Paragraph
6.02(a) hereof, the Executive shall be entitled to the following benefits and
other rights in the event of his Covered Termination:

                                       3
<PAGE>

              (1) Accrued Rights.  The Executive shall be entitled to the
following payments and benefits in respect of accrued compensation rights upon a
Covered Termination, in addition to other rights provided under this Agreement: 

                   (i) payment of any accrued but unpaid Annual Base Salary and
annual bonus (for any completed fiscal year) through the Date of Termination; 

                   (ii) payment of a pro-rata portion of the Bonus Amount for
the fiscal year of the Company in which the Covered Termination occurs, based on
the number of days of such year prior to the Date of Termination; and 

                   (iii) all benefits and rights accrued under the employee
benefit plans, fringe benefits programs and payroll practices of the Company in
accordance with their terms (including, without limitation, employee pension,
employee welfare, incentive bonus, stock incentive plans, and any accrued
vacation or sick pay time).

                   (iv) the benefits described in Section 5 hereof.

              (2) Outplacement Services.  Upon the occurrence of a Covered
Termination, the Executive shall be provided, at the Company's sole expense,
with professional outplacement services consistent with the Executive's duties
or profession and of a type and level customary for persons in his position, as
selected by the Company, subject to reasonable limitations established by the
Company as to duration and dollar amounts.

              (3) Equity Rights. Upon the occurrence of a Covered Termination, 
all outstanding awards of stock options and restricted stock that have been 
granted to the Executive shall continue to become vested and exercisable 
following the Date of Termination at the same times and on the same basis as 
if the Executive had remained employed by the Company and, in the case of 
stock options, shall remain exercisable following the vesting thereof until 
the expiration of the original full term.

    6.03    For purposes of this Agreement:

    (a)  "Annual Base Salary" shall mean the Executive's gross annual salary
before any deductions, exclusions or any deferrals or contributions under any
Company plan or program, but excluding bonuses, incentive compensation, employee
benefits or any other non-salary form of compensation (determined without regard
to any reduction in Annual Base Salary that results in "Good Reason"
termination).

    (b)  "Bonus Amount" shall mean the greater of (i) the dollar amount of the
annual bonus that would be payable to the Executive under the Company's annual
bonus plan applicable to the Executive, assuming payment at the Executive's
target level for the then-current full fiscal year (determined without regard to
any reduction in target bonus percentage that results in "Good Reason"
termination), or (ii) the dollar amount of the bonus paid or payable to the
Executive under the Company's annual bonus plan for the most recently completed
fiscal year under such plan.  For the purposes hereof, the "Bonus Amount" shall
not include any special bonuses paid outside of the Company's generally
applicable annual bonus plan.
 
                                       4
<PAGE>

7.  TERMINATION FOR CAUSE OR RESIGNATION WITHOUT GOOD REASON.

    7.01    The Board will have the right to terminate Executive at any time
from his then-current position for Cause (as defined in paragraph 11.01 herein).

    7.02    If Executive is terminated for Cause or if he resigns his 
position without Good Reason (including if he retires without Good Reason), 
then (i) all of his rights and benefits under this Agreement shall thereupon 
terminate and his employment shall be deemed terminated on the date of such 
termination or resignation, except to the extent provided in clause (iii) of 
this Section 7.02, (ii) he shall be entitled to all accrued rights, payments 
and benefits vested or paid on or before such date under the Company's plans 
and programs, and  (iii) he will be entitled to the other benefits as and to 
the extent described in Section 5 hereof.

8.  DEATH.

    In the event of Executive's death during his employment under this
Agreement, his salary and all rights and benefits under this Agreement will
terminate, and his estate and beneficiary(ies) will receive the benefits they
are entitled to under the terms of the Company's benefit plans and programs by
reason of a participant's death during active employment and the applicable
rights and benefits under the Company's stock plans.  

9.  DISABILITY.

    In the event of Executive's disability during his employment under this
Agreement, he will be entitled to apply at his option for the Company's long
term disability benefits.  If he is accepted for such benefits, then the terms
and provisions of the Company's benefit plans and programs that are applicable
in the event of such disability of an employee shall apply in lieu of the salary
and benefits under this Agreement, except that he will be entitled to benefits
described in Section 5 hereof.  If Executive is disabled so that he cannot
perform his duties (as determined by the Human Resources Committee), and if he
does not apply for long term disability benefits or is not accepted for such
benefits, then the Board may terminate his duties under this Agreement and, in
such event, he will receive two years' salary continuation together with all
other benefits and the benefits under Section 5 hereof.  The equity vesting in
Section 5(b) will occur at the time salary continuation begins.  However, during
such period of salary continuation for disability, Executive will not be
eligible to participate in the annual bonus plan nor will he be eligible to
receive further stock option or restricted stock grants or any other long-term
incentive awards except to the extent approved by the Human Resources Committee.

10. SEVERANCE AGREEMENT.

    Notwithstanding anything elsewhere in this Agreement to the contrary, in
the event that the Executive incurs a "Covered Termination" as defined in his
Severance Agreement within the time period specified therein, he will be
entitled to all the rights, payments and benefits provided

                                       5
<PAGE>

under his Severance Agreement in lieu of the rights and benefits that would 
otherwise apply under this Agreement by virtue of such termination; provided, 
however that he will also be entitled to the other benefits described in 
Section 5 hereof (regarding group insurance, equity vesting, office and 
secretary, and EDCP).

11. DEFINITIONS OF CAUSE AND GOOD REASON.

    11.01   Cause.  Termination by the Company of the Executive's employment
for "Cause" shall mean termination as a result of: 

    (a) the Executive engaging in willful gross neglect of his duties with the
Company, or the Executive's fraud or dishonesty in connection with his
performance of duties to the Company, in either case which has a materially
detrimental effect on the business or operations of the Company; or 

    (b) the Executive's conviction by a court of competent jurisdiction of any
crime (or upon entering a plea of guilty or nolo contendere to a charge of any
crime) constituting a felony.

    The Date of Termination for a termination for Cause shall be the date
specified by the Company; provided that Executive shall have received written
notice of such failure or misconduct and shall have continued to engage in such
failure or misconduct after 30 days following receipt of such notice from the
Board, which notice specifically identifies the manner in which the Board
believes that Executive has engaged in such failure or misconduct.  For purposes
of this Paragraph, no act, or failure to act, on the Executive's part shall be
deemed "willful" unless done, or omitted to be done, by the Executive not in
good faith and without reasonable belief that the Executive's action or omission
was in the best interest of the Company.  Notwithstanding the foregoing, the
Executive shall not be deemed to have been terminated for Cause under Section
11.01(a) hereof unless and until there shall have been delivered to the
Executive a copy of a resolution duly adopted by the affirmative vote of not
less than three-quarters of the entire membership of the Board at a meeting of
the Board called and held for such purposes (after reasonable notice to the
Executive and an opportunity for him, together with his counsel, to be heard
before the Board), finding that in the good faith opinion of the Board the
Executive was guilty of failure to substantially perform his duties or of
misconduct in accordance with the first sentence of this paragraph, and of
continuing such failure to substantially perform his duties or misconduct as
aforesaid after notice from the Board, and specifying the particulars thereof in
detail.

    11.02   Good Reason.  "Good Reason" shall mean, without Executive's express
written consent, the occurrence of any of the following circumstances, unless,
in the case of sub-paragraphs (a), (b), (f), (g) or (h) such circumstances are
fully corrected prior to the date of termination specified in the written notice
given by Executive notifying the Company of his resignation for Good Reason. 
Such notice must be given at least 30 days in advance of the Date of
Termination, and shall set forth in reasonable detail the facts and
circumstances claimed to provide the basis for the termination.  Such notice may
be given at any time within two years

                                       6
<PAGE>

following the occurrence of the events that provide the basis for the 
termination, but not later than the date that is 30 days prior to the 
expiration of the then-current term of this Agreement.

    (a)  Any adverse change by the Company in the Executive's position or title
described in Section 2 hereof, whether or not any such change has been approved
by a vote of at least 75% of the members of the Board.

    (b)  The assignment to Executive of any duties inconsistent with his status
as Chief Executive Officer and Chairman of the Board of the Company or a
substantial adverse alteration in the nature or status of his responsibilities;

    (c)  A reduction by the Company in his annual base salary of $_______ or as
the same may be increased from time to time pursuant to Section 4 hereof;

    (d)  The relocation of the Company's principal executive offices where
Executive is working to a location more than 50 miles from the location of such
offices on the date of this Agreement, or the Company's requiring Executive to
be based anywhere other than the location of the Company's principal offices
where Executive is working on the date of this Agreement except for required
travel on the Company's business to an extent substantially consistent with
Executive's present business travel obligations;

    (e)  The failure by the Company, without Executive's consent, to pay to him
any portion of his current compensation, except pursuant to a compensation
deferral elected by the Executive, or to pay to Executive any portion of an
installment of deferred compensation under any deferred compensation program of
the Company within thirty days of the date such compensation is due;

    (f)  Except as permitted by this Agreement, the failure by the Company to
continue in effect any compensation plan (or substitute or alternative plan) in
which Executive is entitled to participate under Section 4 hereof which is
material to Executive's total compensation, including, but not limited to, the
Company's annual bonus plan and equity incentive plan, or the failure by the
Company to continue Executive's participation therein on a basis that is
materially as favorable both in terms of the amount of benefits provided and the
level of Executive's participation relative to other participants at Executive's
grade level;

    (g)  The failure by the Company to continue to provide Executive with
benefits substantially similar to those enjoyed by him under the Company's
pension and deferred compensation plans, if any, except as required by law, and
the life insurance, medical, health and accident, and disability plans in which
Executive is entitled to participate under Section 4 hereof, or the taking of
any action by the Company which would directly or indirectly materially reduce
any of such benefits or deprive Executive of any material fringe benefit enjoyed
by Executive pursuant to Section 4 hereof, or the failure by the Company to
provide Executive with the number of paid vacation days to which Executive is
entitled; or

                                       7
<PAGE>

    (h)  The failure of the Company to obtain a satisfactory agreement from any
successor to assume and agree to perform this Agreement, as contemplated in
Section 18 hereof.

                                       8
<PAGE>

    Executive's right to terminate his employment pursuant to this Agreement
for Good Reason shall not be affected by Executive's incapacity due to physical
or mental illness.  Executive's continued employment shall not constitute
consent to, or a waiver of rights with respect to, any circumstance constituting
Good Reason hereunder.

12. EXCISE TAX REIMBURSEMENT.

12.01       In the event it shall be determined that any payment or
distribution by the Company or any other person or entity to or for the
Executive's benefit, whether paid or payable or distributed or distributable
pursuant to the terms of this Agreement or otherwise, or whether prior to or
following the Covered Termination in connection with, or arising out of, the
Executive's employment with the Company or a Reorganization Event of the Company
(a "Payment") will be subject to the tax (the "Excise Tax") imposed by section
4999 of the Code, the Company shall pay to the Executive at the time specified
in Section 13 below, an additional amount (the "Gross-Up Payment") such that the
net amount retained by the Executive, after deduction of any Excise Tax on the
Payments and any federal (and state and local) income tax, employment tax and
Excise Tax upon the payment provided for by this paragraph, shall be equal to
the amount of the Payments.  For purposes of determining whether any of the
Payments will be subject to the Excise Tax and the amount of such Excise Tax the
following will apply: 

    (a) any payments or benefits received or to be received by the Executive in
connection with a Reorganization Event of the Company or his termination of
employment (whether pursuant to the terms of this Agreement or any other plan,
arrangement or agreement with the Company, any person whose actions result in a
Reorganization Event of the Company or any person affiliated with the Company or
such person) shall be treated as "parachute payments" within the meaning of
section 280G(b)(2) of the Code, and all "excess parachute payments" within the
meaning of section 280G(b)(1) shall be treated as subject to the Excise Tax,
unless in the opinion of tax counsel selected by the Company's independent
auditors and acceptable to the Executive such other payments or benefits (in
whole or in part) do not constitute parachute payments, or such excess parachute
payments (in whole or in part) represent reasonable compensation for services
actually rendered within the meaning of section 280G(b)(4) of the Code in excess
of the base amount within the meaning of section 280G(b)(3) of the Code, or are
otherwise not subject to the Excise Tax; and

    (b) the value of any non-cash benefits or any deferred payment or benefit
shall be determined by the Company's independent auditors in accordance with
proposed, temporary or final regulations under Sections 280G(d)(3) and (4) of
the Code or, in the absence of such regulations, in accordance with the
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of
determining the amount of the Gross-Up Payment, the Executive shall be deemed to
pay federal income taxes at the highest marginal rate of federal income taxation
in the calendar year in which the Gross-Up Payment is to be made and state and
local income taxes at the highest marginal rate of taxation in the state and
locality of the Executive's residence on the Date of Termination, net of the
maximum reduction in federal income taxes which could be obtained from deduction
of such state and local taxes.  In the event that the amount of Excise Tax

                                       9
<PAGE>

attributable to Payments is subsequently determined to be less than the amount
taken into account hereunder at the time of termination of the Executive's
employment, he shall repay to the Company at the time that the amount of such
reduction in Excise Tax is finally determined the portion of the Gross-Up
Payment attributable to such reduction (plus the portion of the Gross-Up Payment
attributable to the Excise Tax, employment tax and federal (and state and local)
income tax imposed on the Gross-Up Payment being repaid by the Executive if such
repayment results in a reduction in Excise Tax and/or a federal (and state and
local) income tax deduction) plus interest on the amount of such repayment at
the rate provided in section 1274(b)(2) (B) of the Code.  In the event that the
Excise Tax attributable to Payments is determined to exceed the amount taken
into account hereunder at the time of the termination of the Executive's
employment (including by reason of any payment the existence or amount of which
cannot be determined at the time of the Gross-Up Payment), the Company shall
make an additional gross-up payment in respect of such excess (plus any interest
payable with respect to such excess) at the time that the amount of such excess
is finally determined.

13. METHOD OF PAYMENT.

    The payments provided for in Sections 6 and 12 hereof shall be made in a
cash lump-sum payment, net of any required tax withholding, upon the later of
(i) the fifth (5th) business day following the Date of Termination or (ii) the
expiration of the seven (7) day revocation period applicable under the release
of claims referred to in Section 14 hereof.  Any payment required under Sections
6 and 12 or any other provision of this Agreement that is not made in a timely
manner shall bear interest at a rate equal to one-hundred twenty (120) percent
of the monthly compounded applicable federal rate, as in effect under Section
1274(d) of the Code for the month in which the payment is required to be made.

14. RELEASE OF CLAIMS.

    As conditions of Executive's entitlement to the severance payments and
benefits provided by this Agreement, the Executive shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit A (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).

15. EXECUTIVE COVENANTS.

    15.01   General.  The Executive and the Company understand and agree that
the purpose of the provisions of this Section 15 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Executive's right to work, earn a
living, or acquire and possess property from the fruits of his labor.  The
Executive hereby acknowledges that the post-employment restrictions set forth in
this Section 15 are reasonable and that they do not, and will not, unduly impair
his ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the limitations of reasonableness imposed by law
upon restrictions set forth herein, the Executive shall be subject

                                       10
<PAGE>

to the restrictions set forth in this Section 15.

    15.02   Definitions.  The following capitalized terms used in this Section
15 shall have the meanings assigned to them below, which definitions shall apply
to both the singular and the plural forms of such terms:

"Confidential Information" means any confidential or proprietary information
possessed by the Company without limitation, any confidential "know-how",
customer lists, details of client or consultant contracts, current and
anticipated customer requirements, pricing policies, price lists, market
studies, business plans, operational methods, marketing plans or strategies,
product development techniques or plans, computer software programs (including
object code and source code), data and documentation, data base technologies,
systems, structures and architectures, inventions and ideas, past, current and
planned research and development, compilations, devices, methods, techniques,
processes, financial information and data, business acquisition plans, new
personnel acquisition plans and any other information that would constitute a
trade secret under the common law or statutory law of the State of Delaware.

"Determination Date" means the date of termination of the Executive's employment
with the Company for any reason whatsoever or any earlier date (during the
Restricted Period) of an alleged breach of the Restrictive Covenants by the
Executive.

"Person" means any individual or any corporation, partnership, joint venture,
association or other entity or enterprise.

"Principal or Representative" means a principal, owner, partner, shareholder,
joint venturer, member, trustee, director, officer, manager, employee, agent,
representative or consultant.

"Protected Employees" means employees of the Company or its affiliated companies
who were employed by the Company or its affiliated companies at any time within
six (6) months prior to the Determination Date.

"Restricted Period" means the period of the Executive's employment by the
Company plus a period extending two (2) years from the date of termination of
employment.

"Restrictive Covenants" means the restrictive covenants contained in Section
15.03 hereof.

    15.03   Restrictive Covenants.

    (a)  Restriction on Disclosure and Use of Confidential Information.  The
Executive understands and agrees that the Confidential Information constitutes a
valuable asset of the Company and its affiliated entities, and may not be
converted to the Executive's own use.  Accordingly, the Executive hereby agrees
that the Executive shall not, directly or indirectly, at any time during the
Restricted Period reveal, divulge or disclose to any Person not expressly
authorized by the Company any Confidential Information, and the Executive shall
not, directly or indirectly, at any time during the Restricted Period use or
make use of any Confidential
 
                                       11
<PAGE>

Information in connection with any business activity other than that of the
Company.  The parties acknowledge and agree that this Agreement is not intended
to, and does not, alter either the Company's rights or the Executive's
obligations under any state or federal statutory or common law regarding trade
secrets and unfair trade practices.

    (b)  Nonsolicitation of Protected Employees.  The Executive understands and
agrees that the relationship between the Company and each of its Protected
Employees constitutes a valuable asset of the Company and may not be converted
to the Executive's own use.  Accordingly, the Executive hereby agrees that
during the Restricted Period the Executive shall not directly or indirectly on
the Executive's own behalf or as a Principal or Representative of any Person
solicit any Protected Employee to terminate his or her employment with the
Company.

    (c) Noninterference with Company Opportunities.  The Executive understands
and agrees that all hotel development opportunities with which he is involved
during his employment with the Company constitute valuable assets of the Company
and its affiliated entities, and may not be converted to the Executive's own
use.  Accordingly, the Executive hereby agrees that during the Restricted Period
the Executive shall not directly or indirectly on the Executive's own behalf or
as a Principal or Representative of any Person, interfere with, solicit, pursue,
or in any way make use of any such hotel development opportunities.

    15.04   Exceptions from Disclosure Restrictions.  Anything herein to the
contrary notwithstanding, the Executive shall not be restricted from disclosing
or using Confidential Information that: (a) is or becomes generally available to
the public other than as a result of an unauthorized disclosure by the Executive
or his agent; (b) becomes available to the Executive in a manner that is not in
contravention of applicable law from a source (other than the Company or its
affiliated entities or one of its or their officers, employees, agents or
representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or other similar
agreement; (c) was known to the Executive on a non-confidential basis and not in
contravention of applicable law or a confidentiality or other similar agreement
before its disclosure to the Executive by the Company or its affiliated entities
or one of its or their officers, employees, agents or representatives; or (d) is
required to be disclosed by law, court order or other legal process; provided,
however, that in the event disclosure is required by law, court order or legal
process, the Executive shall provide the Company with prompt notice of such
requirement so that the Company may seek an appropriate protective order prior
to any such required disclosure by the Executive.

    15.05   Enforcement of the Restrictive Covenants.

    (a)  Rights and Remedies upon Breach.  In the event the Executive breaches,
or threatens to commit a breach of, any of the provisions of the Restrictive
Covenants, the Company shall have the right and remedy to enjoin, preliminarily
and permanently, the Executive from violating or threatening to violate the
Restrictive Covenants and to have the Restrictive Covenants specifically
enforced by any court of competent jurisdiction, it being agreed that any breach
or threatened breach of the Restrictive Covenants would cause irreparable injury
to the Company

                                       12
<PAGE>

and that money damages would not provide an adequate remedy to the Company.  
The rights referred to in the preceding sentence shall be independent of any 
others and severally enforceable, and shall be in addition to, and not in 
lieu of, any other rights and remedies available to the Company at law or in 
equity.

    (b)  Severability of Covenants.  The Executive acknowledges and agrees that
the Restrictive Covenants are reasonable and valid in time and space and in all
other respects.  If any court determines that any Restrictive Covenants, or any
part thereof, is invalid or unenforceable, the remainder of the Restrictive
Covenants shall not thereby be affected and shall be given full effect, without
regard to the invalid portions. 

16. COOPERATION IN FUTURE MATTERS.

The Executive hereby agrees that, for a period of three (3) years following his
Date of Termination, he shall cooperate with the Company's reasonable requests
relating to matters that pertain to the Executive's employment by the Company,
including, without limitation, providing information or limited consultation as
to such matters, participating in legal proceedings, investigations or audits on
behalf of the Company, or otherwise making himself reasonably available to the
Company for other related purposes.  Any such cooperation shall be performed at
times scheduled taking into consideration the Executive's other commitments, and
the Executive shall be compensated at a reasonable hourly or per diem rate to be
agreed by the parties to the extent such cooperation is required on more than an
occasional and limited basis.  The Executive shall not be required to perform
such cooperation to the extent it conflicts with any requirements of exclusivity
of service for another employer or otherwise, nor in any manner that in the good
faith belief of the Executive would conflict with his rights under or ability to
enforce this Agreement.

17. INDEMNIFICATION.

    (a)  Following the Date of Termination, the Company agrees that it will,
indemnify and hold harmless the Executive, against any costs or expenses
(including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities or amounts paid in settlement incurred in connection with any claim,
action, suit, proceeding or investigation, whether civil, criminal,
administrative or investigative, arising out of or pertaining to matters
existing or occurring at or prior to the Date of Termination, whether asserted
or claimed prior to, at or after the Date of Termination, to the fullest extent
that the Company would have been permitted under Delaware law and its
certificate of incorporation or bylaws in effect on the date hereof to indemnify
the Executive (and the Company shall also advance expenses as incurred to the
fullest extent permitted under applicable law, provided the Executive provides
an undertaking to repay advances if it is ultimately determined that the
Executive is not entitled to indemnification).

    (b)  For a period of six years after the  Date of Termination, the Company
shall maintain (to the extent available in the market) in effect a director's
and officer's liability insurance policy with coverage in amount and scope at
least as favorable as the Company's existing coverage on

                                       13
<PAGE>

the Date of Termination; provided that in no event shall the Company be 
required to expend in the aggregate in excess of 200% of the annual premium 
paid by the Company for such coverage as of the Date of Termination; and if 
such premium would at any time exceed 200% of the such amount, then the 
Company shall maintain insurance policies which provide the maximum and best 
coverage available at an annual premium equal to 200% of such amount.

    (c)  The provisions of this Section 17 are intended to be an addition to
the rights otherwise available to the Executive by law, charter, statute, bylaw
or separate agreement between the Company and the Executive. The Company shall
continue to honor any indemnification agreement between the Company and the
Executive entered into prior to the Date of Termination in accordance with the
terms thereof.

18. BINDING ARBITRATION AND LEGAL FEES.

    18.01   Any dispute or controversy arising under or in connection with this
Agreement shall be settled exclusively by arbitration in accordance with the
rules of the American Arbitration Association then in effect.  Judgment may be
entered on the arbitrator's award in any court having jurisdiction. 

    18.02   The Company shall pay all reasonable legal fees and expenses
incurred by the Executive in connection with any arbitration (or other
proceeding whether or not instituted by the Company or the Executive), relating
to the interpretation or enforcement of any provision of this Agreement
(including any action seeking to obtain or enforce any right or benefit provided
by this Agreement) or in connection with any tax audit or proceeding relating to
the application of Section 4999 of the Code to any payment or benefit provided
by the Company.

19. ASSUMPTION OF AGREEMENT ON MERGER, CONSOLIDATION OR SALE OF ASSETS.

    The Company agrees that, until the termination of this Agreement as above
provided, it will not enter into any merger or consolidation with another
company in which the Company is not the surviving company, or sell or dispose of
all or substantially all of its assets, unless the company which is to survive
such merger or consolidation or the prospective purchaser of such assets first
makes a written agreement with the Executive either (1) assuming the Company's
financial obligations to the Executive under this Agreement, or (2) making such
other provision for the Executive as is satisfactory to the Executive and
approved by him in writing in lieu of assuming the Company's financial
obligations to him under this Agreement. 

20. ASSURANCES ON LIQUIDATION.

    The Company agrees that, until the termination of this Agreement as above
provided, it will not voluntarily liquidate or dissolve without first making a
full settlement, or, at the discretion of the Executive, a written agreement
with the Executive satisfactory to and approved by him in writing, in
fulfillment of or in lieu of its obligations to him under this Agreement.

                                       14
<PAGE>

21. AMENDMENTS.

    This Agreement may not be amended or modified orally, and no provision
hereof may be waived, except in a writing signed by the parties hereto.

22. ASSIGNMENT.

    22.01   Except as otherwise provided in paragraph 21.02, this Agreement
cannot be assigned by either party hereto except with the written consent of the
other.  Any assignment of this Agreement by either party hereto shall not
relieve such party of its or his obligations hereunder.

    22.02   The Company may elect to perform any or all of its obligations
under this Agreement through a wholly-owned subsidiary or other subsidiary, and
if the Company so elects, Executive will be an employee of such wholly-owned
subsidiary, or such other subsidiary.  Notwithstanding any such election, the
Company's obligations to Executive under this Agreement will continue in full
force and effect as obligations of the Company, and the Company shall retain
primary liability for their performance.

23. BINDING EFFECT.

    This Agreement shall be binding upon and inure to the benefit of the
personal representatives and successors in interest of the Company.

24. CHOICE OF LAW.

    This Agreement shall be governed by the law of the State of Tennessee as to
all matters, including, but not limited to, matters of validity, construction,
effect and performance.

25. SEVERABILITY OF PROVISIONS.

    In case any one or more of the provisions contained in this Agreement shall
be invalid, illegal or unenforceable in any respect, the validity, legality and
enforceability of the remaining provisions contained herein shall not in any way
be affected or impaired thereby, and this Agreement shall be interpreted as if
such invalid, illegal or unenforceable provision were not contained herein.

                                       15
<PAGE>

    IN WITNESS WHEREOF, the Executive has hereunto set his hand and the Company
has caused this Agreement to be executed in its name and on its behalf and its
corporate seal to be hereunto affixed and attested by its corporate officers
thereunto duly authorized.


EXECUTIVE


___________________________________
Raymond E. Schultz


(Corporate Seal)   PARENT HOLDING CORP.



By:________________________________    

ATTEST:

    
Secretary

                                       16

<PAGE>

                                 EMPLOYMENT AGREEMENT

    THIS AGREEMENT, made as of the ___ day of November, 1997, between Parent 
Holding Corp., a Delaware corporation with its executive offices at 
755 Crossover Lane, Memphis, Tennessee (the "Company") and Richard M. Kelleher 
(the "Executive").

    The Company and the Executive agree as follows:

1.  Effective Date and Term.

    The Company desires to secure the services of the Executive and the
Executive is willing to execute this Agreement with respect to his employment. 
The employment of the Executive hereunder shall become effective at the
Effective Time under the Agreement of Plan of Merger (the "Merger Agreement")
dated as of September 1, 1997 among Doubletree Corporation, Promus Hotel
Corporation and Parent Holding Corp. (the "Effective Time"), and shall expire on
the fifth anniversary of the Effective Time (the "Initial Term"), subject to the
terms and conditions herein. The Initial Term shall be automatically extended
for an additional term of one (1) year on each anniversary of the expiration of
the Initial Term unless, no later than thirty (30) days prior to the expiration
of any term, either the Company or the Executive gives written notice to the
other that the term will not be extended, in which case the Executive's
employment hereunder shall terminate upon the expiration of the then current
term. This Agreement is effective upon its execution by the parties hereto;
PROVIDED, HOWEVER, that the obligation of the parties with respect to the
employment of the Executive shall only become operative upon the occurrence of
the Effective Time under the Merger Agreement.  If the Merger Agreement is
abandoned or for any other reason the transactions contemplated thereby are not
consummated, this Agreement shall be null and void and the parties shall have no
further obligations hereunder.
                                           
2.  Agreement of Employment.

    The Company agrees to, and hereby does, employ the Executive, and the 
Executive agrees to, and hereby does accept, employment by the Company, in a 
full-time capacity, pursuant to the provisions of this Agreement and of the 
By-laws of the Company and subject to the control of the Board of Directors 
of the Company (the "Board").  The Executive shall, effective as of the 
Effective Time, hold the position of President and Chief Operating Officer of 
the Company.  Upon the retirement of the individual who is the Chairman of 
the Board and Chief Executive Officer of the Company as of the Effective 
Time, but in no event later than January 1, 2000, the Executive shall succeed 
to the position of Chairman of the Board and Chief Executive Officer of the 
Company.  It is hereby understood that the foregoing requirements regarding 
the Executive's position are subject to the By-laws of the Company, which 
require a vote of at least 75% of the members of the Board to change such 
positions or plan of succession.

3.  Executive's Obligations.

    During the period of his service under this Agreement, the Executive 
shall devote substantially all of his time and energies during business hours 
to the supervision and conduct, faithfully and to the best of his ability, of 
the business and affairs of the Company and to the furtherance of its 
interests, and to such other duties as directed by the Board.

4.  Compensation.

                                       1

<PAGE>

    (a)  The Company shall pay to Executive a salary at the rate of $________
per year, in equal bi-weekly installments; PROVIDED, HOWEVER, that the Human
Resources Committee of the Board (the "Human Resources Committee") shall in good
faith review the salary of the Executive, on an annual basis, with a view to
consideration of appropriate merit increases in such salary. In addition, during
the term of this Agreement, the Executive shall be entitled to participate in
incentive compensation programs and to receive employee benefits and perquisites
at least as favorable to the Executive as those provided to Executive as of the
Effective Time, and as may be enhanced for all senior officers.  Such benefits
include, but are not limited to (i) the annual bonus plan for which senior
executives of the Company are generally eligible, (ii) awards under any stock
option, restricted stock, or equity based incentive compensation plan or
arrangement maintained by the Company for which senior executives of the Company
are generally eligible, (iii)  all employee benefit plans, programs and
arrangements of the Company for which senior executives of the Company are
generally eligible, and (iv) all benefits and perquisites being provided to the
Executive by Doubletree Corporation immediately prior to the Effective Time,
including without limitation, company car, additional company-paid disability
and life insurance, and tax-preparation services.  There will be no diminution
of the compensation, perquisites, or benefits set forth in this Section 4 except
as provided in this Agreement.

    (b)  The Company shall assume and honor, in accordance with their terms,
the obligations of Doubletree to the Executive under the Doubletree Supplemental
Executive Retirement Plan.  Executive shall also be entitled to the benefits
under his Severance Agreement with Doubletree Corporation dated November __,
1997, a copy of which is attached hereto as Exhibit A (the "Severance
Agreement"), which will continue in force subject to its terms and conditions
including the termination and amendment provisions thereof, and which will
affect the Company's obligations under this Agreement as described in Section 10
hereof.

    (c)  The Executive will use the Company's aircraft for security purposes
for himself and his family (with standard charges for non-employee family
members and for non-Company business usage).  The Company will also provide
Executive with appropriate security arrangements at his residence.

5.  Termination From Employment.

    After the date of Executive's termination from employment at any time, 
including termination by resignation, retirement or for any other reason 
("Date of Termination"), he will be entitled to participate at the Company's 
expense for his lifetime in the Company's group health insurance plans 
applicable to corporate executives, including family coverage as applicable 
(medical, dental and vision coverage).  It is understood that the Executive 
will be subject to income tax on the cost of the benefits provided to him 
after his termination.  His group health insurance benefits after any 
termination of employment will not be less than those offered to corporate 
officers of the Company, and he will be entitled to any later enhancements in 
such benefits.  His benefits will be the same as normally provided to other 
retired management directors (except to the extent he voluntarily elects not 
to participate in any plan).

6.  Termination Without Cause or Resignation for Good Reason.

                                       2

<PAGE>

    6.01    The Executive shall be treated as having  incurred a "Covered
Termination" hereunder if his employment is terminated (i) by the Company other
than for Cause (as defined in Section 11.01 hereof) or (ii) by the Executive for
Good Reason (as defined in Section 11.02 hereof).  The Executive shall not be
treated as having incurred a Covered Termination if his employment is terminated
as a result of death or disability, as provided in Sections 8 and 9 hereof,
respectively.  NOTE that, as provided in Section 10 hereof, if the Executive
becomes entitled to termination payments under the applicable provisions of his
Severance Agreement, such provisions shall supersede the following provisions of
this Section 6.

    6.02    (a)  The amount of the severance payment to be paid to the
Executive upon Covered Termination shall be the amount determined by multiplying
3.00 times the sum of:

              (1) the Executive's Annual Base Salary as in effect immediately
prior to the Date of Termination; PLUS, 

              (2) the Executive's Bonus Amount applicable for the fiscal year
in which the Date of Termination occurs; PLUS, 

              (3) a benefit allowance of 25% of the Executive's Annual Base
Salary as in effect immediately prior to the Date of Termination, less an amount
estimated in good faith by the Company to represent the cost of providing the
lifetime group insurance benefits described in Section 5 hereof for a period of
three years following the Date of Termination.

            (b)  In addition to the severance payment provided under Paragraph
6.02(a) hereof, the Executive shall be entitled to the following benefits and
other rights in the event of his Covered Termination:

              (1) ACCRUED RIGHTS.  The Executive shall be entitled to the
following payments and benefits in respect of accrued compensation rights upon a
Covered Termination, in addition to other rights provided under this Agreement: 

                   (i) payment of any accrued but unpaid Annual Base Salary and
annual bonus (for any completed fiscal year) through the Date of Termination; 

                   (ii) payment of a pro-rata portion of the Bonus Amount for
the fiscal year of the Company in which the Covered Termination occurs, based on
the number of days of such year prior to the Date of Termination; 
                   
                   (iii) all benefits and rights accrued under the employee
benefit plans, fringe benefits programs and payroll practices of the Company in
accordance with their terms (including, without limitation, employee pension,
employee welfare, incentive bonus, stock incentive plans, and any accrued
vacation or sick pay time); 

                   (iv) the lifetime group insurance benefits described in
Section 5 hereof; and

                   (v) payment of the Executive's benefits pursuant to the 
terms of the Doubletree Hotels Corporation Supplemental Executive Retirement 
Plan (the "SERP"), which, for the purposes thereof, the Company acknowledges 
that the Proposed Merger shall constitute a "Change of Control" (as defined 
therein), and which is attached as Exhibit B hereto.

                                       3

<PAGE>

              (2) Outplacement Services.  Upon the occurrence of a Covered
Termination, the Executive shall be provided, at the Company's sole expense,
with professional outplacement services consistent with the Executive's duties
or profession and of a type and level customary for persons in his position, as
selected by the Company, subject to reasonable limitations established by the
Company as to duration and dollar amounts.

              (3) Equity Rights.

                   (i) Upon the occurrence of a Covered Termination, all 
outstanding awards of stock options and restricted stock that have been 
granted to the Executive shall continue to become vested following the Date 
of Termination at the same times and on the same basis as if the Executive 
had remained employed by the Company and, in the case of stock options, shall 
remain exercisable following the vesting thereof until the expiration of the 
original full term.  NOTE that, pursuant to Section 10.02(d) hereof, the 
contemplated relocation of the Executive's offices from Phoenix, Arizona to 
Memphis, Tennessee in connection with the Proposed Merger will constitute a 
Good Reason hereunder.

                                       4

<PAGE>

6.03   For purposes of this Agreement:
            
            (a)  "Annual Base Salary" shall mean the Executive's gross annual
salary before any deductions, exclusions or any deferrals or contributions under
any Company plan or program, but excluding bonuses, incentive compensation,
employee benefits or any other non-salary form of compensation (determined
without regard to any reduction in Annual Base Salary that results in "Good
Reason" termination).
            
            (b)  "Bonus Amount" shall mean the greater of (i) the dollar amount
of the annual bonus that would be payable to the Executive under the Company's
annual bonus plan applicable to the Executive, assuming payment at the
Executive's target level for the then-current full fiscal year (determined
without regard to any reduction in target bonus percentage that results in "Good
Reason" termination), or (ii) the dollar amount of the bonus paid or payable to
the Executive under the Company's annual bonus plan for the most recently
completed fiscal year under such plan.  For the purposes hereof, the "Bonus
Amount" shall not include any special bonuses paid outside of the Company's
generally applicable annual bonus plan.

7.  Termination For Cause or Resignation Without Good Reason.

    7.01    The Board will have the right to terminate Executive at any time
from his then-current position for Cause (as defined in paragraph 11.01 herein).

    7.02    If Executive is terminated for Cause or if he resigns his position
without Good Reason (including if he retires without Good Reason), then (i) all
of his rights and benefits under this Agreement shall thereupon terminate and
his employment shall be deemed terminated on the date of such termination or
resignation, (ii) he shall be entitled to all accrued rights, payments and
benefits vested or paid on or before such date under the Company's plans and
programs, but unvested stock options and unvested shares of restricted stock, if
any, will be forfeited and (iii) he will be entitled to the lifetime group
insurance benefits described in Section 5 hereof.

8.  Death.

    In the event of Executive's death during his employment under this
Agreement, his salary and all rights and benefits under this Agreement will
terminate, and his estate and beneficiary(ies) will receive the benefits they
are entitled to under the terms of the Company's benefit plans and programs by
reason of a participant's death during active employment and the applicable
rights and benefits under the Company's stock plans.  

9.  Disability.

    In the event of Executive's disability during his employment under this
Agreement, he will be entitled to apply at his option for the Company's long
term disability benefits.  If he is accepted for such benefits, then the terms
and provisions of the Company's benefit plans and programs that are applicable
in the event of such disability of an employee shall apply in lieu of the salary
and benefits under this Agreement, except that he will be entitled to the
lifetime group insurance benefits described in Section 5.  If Executive is
disabled so that he cannot perform his duties (as determined by the Human
Resources Committee), and if he does not apply for long term disability benefits
or is not accepted for such benefits, then the Board may terminate his duties
under this Agreement and, in such event, he will receive two years' salary
continuation together


                                       5

<PAGE>

with all other benefits, and, during such period of salary continuation, any 
stock options and restricted stock grants then in existence will continue in 
force for vesting purposes.  However, during such period of salary 
continuation for disability, Executive will not be eligible to participate in 
the annual bonus plan nor will he be eligible to receive stock option or 
restricted stock grants or any other long-term incentive awards except to the 
extent approved by the Human Resources Committee.

10. Severance Agreement.

    Notwithstanding anything elsewhere in this Agreement to the contrary, in
the event that the Executive incurs a "Covered Termination" as defined in his
Severance Agreement within the time period specified therein, he will be
entitled to all the rights, payments and benefits provided under his Severance
Agreement in lieu of the rights and benefits that would otherwise apply under
this Agreement by virtue of such termination (except to the extent specifically
incorporated therein by reference to this Agreement). The occurrence of a 
Covered Termination following the occurrence of more than one Reorganization 
Event after the date hereof shall not entitle the Executive to multiple 
severance payments under this Agreement and/or the Severance Agreement.

11. Definitions of Cause and Good Reason.

    11.01   Cause.  Termination by the Company of the Executive's employment
for "Cause" shall mean termination as a result of: 

            (a) the Executive engaging in willful gross neglect of his duties
with the Company, or the Executive's fraud or dishonesty in connection with his
performance of duties to the Company, in either case which has a materially
detrimental effect on the business or operations of the Company; or 
            
            (b) the Executive's conviction by a court of competent jurisdiction
of any crime (or upon entering a plea of guilty or NOLO CONTENDERE to a charge
of any crime) constituting a felony.
            
    The Date of Termination for a termination for Cause shall be the date
specified by the Company; PROVIDED that Executive shall have received written
notice of such failure or misconduct and shall have continued to engage in such
failure or misconduct after 30 days following receipt of such notice from the
Board, which notice specifically identifies the manner in which the Board
believes that Executive has engaged in such failure or misconduct.  For purposes
of this Paragraph, no act, or failure to act, on the Executive's part shall be
deemed "willful" unless done, or omitted to be done, by the Executive not in
good faith and without reasonable belief that the Executive's action or omission
was in the best interest of the Company.  Notwithstanding the foregoing, the
Executive shall not be deemed to have been terminated for Cause under Section
11.01(a) hereof unless and until there shall have been delivered to the
Executive a copy of a resolution duly adopted by the affirmative vote of not
less than three-quarters of the entire membership of the Board at a meeting of
the Board called and held for such purposes (after reasonable notice to the
Executive and an opportunity for him, together with his counsel, to be heard
before the Board), finding that in the good faith opinion of the Board the
Executive was guilty of failure to substantially perform his duties or of
misconduct in accordance with the first sentence of this paragraph, and of
continuing such failure to substantially perform his duties or misconduct as
aforesaid after notice from the Board, and specifying the particulars thereof in
detail.
    
    11.02   Good Reason.  "Good Reason" shall mean, without Executive's express
written consent, the occurrence of any of the following circumstances, unless,
in the case of paragraphs


                                       6

<PAGE>

(a), (b), (f), (g) of (h) such circumstances are fully corrected prior to the 
date of termination specified in the written notice given by Executive 
notifying the Company of his resignation for Good Reason.  Such notice must 
be given at least 30 days in advance of the Date of Termination, and shall 
set forth in reasonable detail the facts and circumstances claimed to provide 
the basis for the termination.  Such notice may be given at any time within 
two years following the occurrence of the events that provide the basis for 
the termination, but not later than the date that is 30 days prior to the 
expiration of the then-current term of this Agreement.

    (a)       Any adverse change by the Company in the Executive's
position or title or the succession plan described in Section 2 hereof, whether
or not any such change has been approved by a vote of at least 75% of the
members of the Board.
            
    (b)       The assignment to Executive of any duties inconsistent with his
status as President and Chief Operating Officer of the Company or as Chairman of
the Board and Chief Executive Officer of the Company (as applicable under
Section 2 hereof), or a substantial adverse alteration in the nature or status
of his responsibilities;
            
    (c)       A reduction by the Company in his annual base salary of $_______
or as the same may be increased from time to time pursuant to Section 4  hereof;
            
    (d)       The relocation of the Company's principal executive offices where
Executive is working to a location more than 50 miles from the location of such
offices on the date of this Agreement, or the Company's requiring Executive to
be based anywhere other than the location of the Company's principal offices
where Executive is working on the date of this Agreement except for required
travel on the Company's business to an extent substantially consistent with
Executive's present business travel obligations;
            
    (e)       The failure by the Company, without Executive's consent, to pay
to him any portion of his current compensation, except pursuant to a
compensation deferral elected by the Executive, or to pay to Executive any
portion of an installment of deferred compensation under any deferred
compensation program of the Company within thirty days of the date such
compensation is due;
            
    (f)       Except as permitted by this Agreement, the failure by the Company
to continue in effect any compensation plan (or substitute or alternative plan)
in which Executive is entitled to participate under Section 4 hereof which is
material to Executive's total compensation, including, but not limited to, the
Company's annual bonus plan and equity incentive plan, or the failure by the
Company to continue Executive's participation therein on a basis that is
materially as favorable both in terms of the amount of benefits provided and the
level of Executive's participation relative to other participants at Executive's
grade level;
            
    (g)       The failure by the Company to continue to provide Executive with
benefits substantially similar to those enjoyed by him under the Company's
pension and deferred compensation plans, if any, except as required by law, and
the life insurance, medical, health and accident, and disability plans in which
Executive is entitled to participate under Section 4 hereof, or the taking of
any action by the Company which would directly or indirectly materially reduce
any of such


                                       7

<PAGE>

benefits or deprive Executive of any material fringe benefit enjoyed
by Executive pursuant to Section 4 hereof, or the failure by the Company to
provide Executive with the number of paid vacation days to which Executive is
entitled;

    (h)       The failure by the Company to continue in effect and honor in 
accordance with its terms the SERP as applied to the Executive; or

    (i)       The failure of the Company to obtain a satisfactory agreement
from any successor to assume and agree to perform this Agreement, as
contemplated in Section 19 hereof.

            Executive's right to terminate his employment pursuant to this
Agreement for Good Reason shall not be affected by Executive's incapacity due to
physical or mental illness.  Executive's continued employment shall not
constitute consent to, or a waiver of rights with respect to, any circumstance
constituting Good Reason hereunder.

12. Excise Tax Reimbursement.

    12.01   In the event it shall be determined that any payment or
distribution by the Company or any other person or entity to or for the
Executive's benefit, whether paid or payable or distributed or distributable
pursuant to the terms of this Agreement or otherwise, or whether prior to or
following the Covered Termination in connection with, or arising out of, the
Executive's employment with the Company or a Reorganization Event of the Company
(a "Payment") will be subject to the tax (the "Excise Tax") imposed by section
4999 of the Code, the Company shall pay to the Executive at the time specified
in Section 13 below, an additional amount (the "Gross-Up Payment") such that the
net amount retained by the Executive, after deduction of any Excise Tax on the
Payments and any federal (and state and local) income tax, employment tax and
Excise Tax upon the payment provided for by this paragraph, shall be equal to
the amount of the Payments.  For purposes of determining whether any of the
Payments will be subject to the Excise Tax and the amount of such Excise Tax the
following will apply: 
    
    (a) any payments or benefits received or to be received by the Executive in
connection with a Reorganization Event of the Company or his termination of
employment (whether pursuant to the terms of this Agreement or any other plan,
arrangement or agreement with the Company, any person whose actions result in a
Reorganization Event of the Company or any person affiliated with the Company or
such person) shall be treated as "parachute payments" within the meaning of
section 280G(b)(2) of the Code, and all "excess parachute payments" within the
meaning of section 280G(b)(1) shall be treated as subject to the Excise Tax,
unless in the opinion of tax counsel selected by the Company's independent
auditors and acceptable to the Executive such other payments or benefits (in
whole or in part) do not constitute parachute payments, or such excess parachute
payments (in whole or in part) represent reasonable compensation for services
actually rendered within the meaning of section 280G(b)(4) of the Code in excess
of the base amount within the meaning of section 280G(b)(3) of the Code, or are
otherwise not subject to the Excise Tax; and
    
    (b) the value of any non-cash benefits or any deferred payment or benefit
shall be determined by the Company's independent auditors in accordance with
proposed, temporary or final regulations under Sections 280G(d)(3) and (4) of
the Code or, in the absence of such regulations, in accordance with the
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of
determining the amount of the Gross-Up Payment, the Executive shall be deemed to


                                       8

<PAGE>

pay federal income taxes at the highest marginal rate of federal income taxation
in the calendar year in which the Gross-Up Payment is to be made and state and
local income taxes at the highest marginal rate of taxation in the state and
locality of the Executive's residence on the Date of Termination, net of the
maximum reduction in federal income taxes which could be obtained from deduction
of such state and local taxes.  In the event that the amount of Excise Tax
attributable to Payments is subsequently determined to be less than the amount
taken into account hereunder at the time of termination of the Executive's
employment, he shall repay to the Company at the time that the amount of such
reduction in Excise Tax is finally determined the portion of the Gross-Up
Payment attributable to such reduction (plus the portion of the Gross-Up Payment
attributable to the Excise Tax, employment tax and federal (and state and local)
income tax imposed on the Gross-Up Payment being repaid by the Executive if such
repayment results in a reduction in Excise Tax and/or a federal (and state and
local) income tax deduction) plus interest on the amount of such repayment at
the rate provided in section 1274(b)(2) (B) of the Code.  In the event that the
Excise Tax attributable to Payments is determined to exceed the amount taken
into account hereunder at the time of the termination of the Executive's
employment (including by reason of any payment the existence or amount of which
cannot be determined at the time of the Gross-Up Payment), the Company shall
make an additional gross-up payment in respect of such excess (plus any interest
payable with respect to such excess) at the time that the amount of such excess
is finally determined.


                                       9

<PAGE>

13. Method of Payment.

    The payments provided for in Sections 6 and 12 hereof shall be made in a
cash lump-sum payment, net of any required tax withholding, upon the later of
(i) the fifth (5th) business day following the Date of Termination or (ii) the
expiration of the seven (7) day revocation period applicable under the release
of claims referred to in Section 14 hereof.  Any payment required under Sections
6 and 12 or any other provision of this Agreement that is not made in a timely
manner shall bear interest at a rate equal to one-hundred twenty (120) percent
of the monthly compounded applicable federal rate, as in effect under Section
1274(d) of the Code for the month in which the payment is required to be made.

14. Release of Claims.

    As conditions of Executive's entitlement to the severance payments and
benefits provided by this Agreement, the Executive shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit C (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).

15. Executive Covenants.

    15.01   General.  The Executive and the Company understand and agree that
the purpose of the provisions of this Section 15 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Executive's right to work, earn a
living, or acquire and possess property from the fruits of his labor.  The
Executive hereby acknowledges that the post-employment restrictions set forth in
this Section 15 are reasonable and that they do not, and will not, unduly impair
his ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the limitations of reasonableness imposed by law
upon restrictions set forth herein, the Executive shall be subject to the
restrictions set forth in this Section 15.

    15.02   Definitions.  The following capitalized terms used in this Section
15 shall have the meanings assigned to them below, which definitions shall apply
to both the singular and the plural forms of such terms:
            
            "Confidential Information" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.


                                       10

<PAGE>
            
            "Determination Date" means the date of termination of the
Executive's employment with the Company for any reason whatsoever or any earlier
date (during the Restricted Period) of an alleged breach of the Restrictive
Covenants by the Executive.
            
            "Person" means any individual or any corporation, partnership,
joint venture, association or other entity or enterprise.
            
            "Principal or Representative" means a principal, owner, partner,
shareholder, joint venturer, member, trustee, director, officer, manager,
employee, agent, representative or consultant.
            
            "Protected Employees" means employees of the Company or its
affiliated companies who were employed by the Company or its affiliated
companies at any time within six (6) months prior to the Determination Date.
            
            "Restricted Period" means the period of the Executive's employment
by the Company plus a period extending two (2) years from the date of
termination of employment.
            
            "Restrictive Covenants" means the restrictive covenants contained
in Section 15.03 hereof.
            

    15.03   Restrictive Covenants.
            
            (a)  Restriction on Disclosure and Use of Confidential Information. 
The Executive understands and agrees that the Confidential Information
constitutes a valuable asset of the Company and its affiliated entities, and may
not be converted to the Executive's own use.  Accordingly, the Executive hereby
agrees that the Executive shall not, directly or indirectly, at any time during
the Restricted Period reveal, divulge or disclose to any Person not expressly
authorized by the Company any Confidential Information, and the Executive shall
not, directly or indirectly, at any time during the Restricted Period use or
make use of any Confidential Information in connection with any business
activity other than that of the Company.  The parties acknowledge and agree that
this Agreement is not intended to, and does not, alter either the Company's
rights or the Executive's obligations under any state or federal statutory or
common law regarding trade secrets and unfair trade practices.
            
            (b)  Nonsolicitation of Protected Employees.  The Executive
understands and agrees that the relationship between the Company and each of its
Protected Employees constitutes a valuable asset of the Company and may not be
converted to the Executive's own use.  Accordingly, the Executive hereby agrees
that during the Restricted Period the Executive shall not directly or indirectly
on the Executive's own behalf or as a Principal or Representative of any Person
solicit any Protected Employee to terminate his or her employment with the
Company.
            
            (c) Noninterference with Company Opportunities.  The Executive
understands and agrees that all hotel development opportunities with which he is
involved during his employment with the Company constitute valuable assets of
the Company and its affiliated entities, and may not be converted to the
Executive's own use.  Accordingly, the Executive hereby agrees that during the


                                      11

<PAGE>

Restricted Period the Executive shall not directly or indirectly on the
Executive's own behalf or as a Principal or Representative of any Person,
interfere with, solicit, pursue, or in any way make use of any such hotel
development opportunities.
            
    15.04   Exceptions from Disclosure Restrictions.  Anything herein to the
contrary notwithstanding, the Executive shall not be restricted from disclosing
or using Confidential Information that: (a) is or becomes generally available to
the public other than as a result of an unauthorized disclosure by the Executive
or his agent; (b) becomes available to the Executive in a manner that is not in
contravention of applicable law from a source (other than the Company or its
affiliated entities or one of its or their officers, employees, agents or
representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or other similar
agreement; (c) was known to the Executive on a non-confidential basis and not in
contravention of applicable law or a confidentiality or other similar agreement
before its disclosure to the Executive by the Company or its affiliated entities
or one of its or their officers, employees, agents or representatives; or (d) is
required to be disclosed by law, court order or other legal process; PROVIDED,
HOWEVER, that in the event disclosure is required by law, court order or legal
process, the Executive shall provide the Company with prompt notice of such
requirement so that the Company may seek an appropriate protective order prior
to any such required disclosure by the Executive.
            
    15.05   Enforcement of the Restrictive Covenants.
            
            (a)  Rights and Remedies upon Breach.  In the event the Executive
breaches, or threatens to commit a breach of, any of the provisions of the
Restrictive Covenants, the Company shall have the right and remedy to enjoin,
preliminarily and permanently, the Executive from violating or threatening to
violate the Restrictive Covenants and to have the Restrictive Covenants
specifically enforced by any court of competent jurisdiction, it being agreed
that any breach or threatened breach of the Restrictive Covenants would cause
irreparable injury to the Company and that money damages would not provide an
adequate remedy to the Company.  The rights referred to in the preceding
sentence shall be independent of any others and severally enforceable, and shall
be in addition to, and not in lieu of, any other rights and remedies available
to the Company at law or in equity.
            
            (b)  Severability of Covenants.  The Executive acknowledges and
agrees that the Restrictive Covenants are reasonable and valid in time and space
and in all other respects.  If any court determines that any Restrictive
Covenants, or any part thereof, is invalid or unenforceable, the remainder of
the Restrictive Covenants shall not thereby be affected and shall be given full
effect, without regard to the invalid portions. 
            
16. Cooperation in Future Matters.

    The Executive hereby agrees that, for a period of three (3) years following
his Date of Termination, he shall cooperate with the Company's reasonable
requests relating to matters that pertain to the Executive's employment by the
Company, including, without limitation, providing information or limited
consultation as to such matters, participating in legal proceedings,


                                      12

<PAGE>

investigations or audits on behalf of the Company, or otherwise making himself
reasonably available to the Company for other related purposes.  Any such
cooperation shall be performed at times scheduled taking into consideration the
Executive's other commitments, and the Executive shall be compensated at a
reasonable hourly or PER DIEM rate to be agreed by the parties to the extent
such cooperation is required on more than an occasional and limited basis.  The
Executive shall not be required to perform such cooperation to the extent it
conflicts with any requirements of exclusivity of service for another employer
or otherwise, nor in any manner that in the good faith belief of the Executive
would conflict with his rights under or ability to enforce this Agreement.
    
17. Indemnification.
    
    (a)  Following the Date of Termination, the Company agrees that it will,
indemnify and hold harmless the Executive, against any costs or expenses
(including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities or amounts paid in settlement incurred in connection with any claim,
action, suit, proceeding or investigation, whether civil, criminal,
administrative or investigative, arising out of or pertaining to matters
existing or occurring at or prior to the Date of Termination, whether asserted
or claimed prior to, at or after the Date of Termination, to the fullest extent
that the Company would have been permitted under Delaware law and its
certificate of incorporation or bylaws in effect on the date hereof to indemnify
the Executive (and the Company shall also advance expenses as incurred to the
fullest extent permitted under applicable law, provided the Executive provides
an undertaking to repay advances if it is ultimately determined that the
Executive is not entitled to indemnification).

    (b)  For a period of six years after the  Date of Termination, the Company
shall maintain (to the extent available in the market) in effect a director's
and officer's liability insurance policy with coverage in amount and scope at
least as favorable as the Company's existing coverage on the Date of
Termination; provided that in no event shall the Company be required to expend
in the aggregate in excess of 200% of the annual premium paid by the Company for
such coverage as of the Date of Termination; and if such premium would at any
time exceed 200% of the such amount, then the Company shall maintain insurance
policies which provide the maximum and best coverage available at an annual
premium equal to 200% of such amount.

    (c)  The provisions of this Section 17 are intended to be an addition to
the rights otherwise available to the Executive by law, charter, statute, bylaw
or separate agreement between the Company and the Executive. The Company shall
continue to honor any indemnification agreement between the Company and the
Executive entered into prior to the Date of Termination in accordance with the
terms thereof.

18. Binding Arbitration and Legal Fees.

    18.01   Any dispute or controversy arising under or in connection with this
Agreement shall be settled exclusively by arbitration in accordance with the
rules of the American Arbitration Association then in effect.  Judgment may be
entered on the arbitrator's award in any court having jurisdiction. 


                                      13

<PAGE>

    18.02   The Company shall pay all reasonable legal fees and expenses
incurred by the Executive in connection with any arbitration (or other
proceeding whether or not instituted by the Company or the Executive), relating
to the interpretation or enforcement of any provision of this Agreement
(including any action seeking to obtain or enforce any right or benefit provided
by this Agreement) or in connection with any tax audit or proceeding relating to
the application of Section 4999 of the Code to any payment or benefit provided
by the Company.

19. Assumption of Agreement on Merger, Consolidation or Sale of Assets.

    The Company agrees that, until the termination of this Agreement as above
provided, it will not enter into any merger or consolidation with another
company in which the Company is not the surviving company, or sell or dispose of
all or substantially all of its assets, unless the company which is to survive
such merger or consolidation or the prospective purchaser of such assets first
makes a written agreement with the Executive either (1) assuming the Company's
financial obligations to the Executive under this Agreement, or (2) making such
other provision for the Executive as is satisfactory to the Executive and
approved by him in writing in lieu of assuming the Company's financial
obligations to him under this Agreement. 

20. Assurances on Liquidation.

    The Company agrees that, until the termination of this Agreement as above
provided, it will not voluntarily liquidate or dissolve without first making a
full settlement, or, at the discretion of the Executive, a written agreement
with the Executive satisfactory to and approved by him in writing, in
fulfillment of or in lieu of its obligations to him under this Agreement.

21. Amendments.

    This Agreement may not be amended or modified orally, and no provision
hereof may be waived, except in a writing signed by the parties hereto.

22. Assignment.

    22.01   Except as otherwise provided in paragraph 22.02, this Agreement
cannot be assigned by either party hereto except with the written consent of the
other.  Any assignment of this Agreement by either party hereto shall not
relieve such party of its or his obligations hereunder.

    22.02   The Company may elect to perform any or all of its obligations
under this Agreement through a wholly-owned subsidiary or other subsidiary, and
if the Company so elects, Executive will be an employee of such wholly-owned
subsidiary, or such other subsidiary.  Notwithstanding any such election, the
Company's obligations to Executive under this Agreement will continue in full
force and effect as obligations of the Company, and the Company shall retain
primary liability for their performance.

23. Binding Effect.

    This Agreement shall be binding upon and inure to the benefit of the
personal representatives and successors in interest of the Company.

24. Choice of Law.

    This Agreement shall be governed by the law of the State of Tennessee as to
all matters, including, but not limited to, matters of validity, construction,
effect and performance.

25. Severability of Provisions.

    In case any one or more of the provisions contained in this Agreement shall
be invalid, illegal or unenforceable in any respect, the validity, legality and
enforceability of the remaining provisions contained herein shall not in any way
be affected or impaired thereby, and this Agreement shall be interpreted as if
such invalid, illegal or unenforceable provision were not contained herein. 


                                      14

<PAGE>

    IN WITNESS WHEREOF, the Executive has hereunto set his hand and the Company
has caused this Agreement to be executed in its name and on its behalf and its
corporate seal to be hereunto affixed and attested by its corporate officers
thereunto duly authorized.
                             EXECUTIVE
    
    ___________________________________
    Richard M. Kelleher


(Corporate Seal)   PARENT HOLDING CORP.



    By:     
ATTEST:

    
    Secretary


                                      15



<PAGE>

                                 EMPLOYMENT AGREEMENT
                                             
     THIS AGREEMENT, made as of the ___ day of November, 1997, between Parent 
Holding Corp., a Delaware corporation with its executive offices at 755 
Crossover Lane, Memphis, Tennessee (the "Company") and Thomas L. Keltner (the 
"Executive").  The Company and the Executive agree as follows:

1.   Effective Date and Term.

     The Company desires to secure the services of the Executive and the 
Executive is willing to execute this Agreement with respect to his 
employment. The employment of the Executive shall become effective at the 
Effective Time under the Agreement of Plan of Merger (the "Merger Agreement") 
dated as of September 1, 1997 among Doubletree Corporation, Promus Hotel 
Corporation and Parent Holding Corp. (the "Effective Time"), and shall expire 
on the fifth anniversary of the Effective Time (the "Initial Term"), subject 
to the terms and conditions herein. The Initial Term shall be automatically 
extended for an additional term of one (1) year on each anniversary of the 
expiration of the Initial Term unless, no later than thirty (30) days prior 
to the expiration of any term, either the Company or the Executive gives 
written notice to the other that the term will not be extended, in which case 
the Executive's employment hereunder shall terminate upon the expiration of 
the then current term. This Agreement is effective upon its execution by the 
parties hereto; provided, however, that the obligation of the parties with 
respect to the employment of the Executive shall only become operative upon 
the occurrence of the Effective Time under the Merger Agreement.  If the 
Merger Agreement is abandoned or for any other reason the transactions 
contemplated thereby are not consummated, this Agreement shall be null and 
void and the parties shall have no further obligations hereunder.

2.   Agreement of Employment.

     The Company agrees to, and hereby does, employ the Executive, and the 
Executive agrees to, and hereby does accept, employment by the Company, in a 
full-time capacity, pursuant to the provisions of this Agreement and of the 
By-laws of the Company and subject to the control of the Board of Directors 
of the Company (the "Board").  The Executive shall, effective as of the 
Effective Time, hold the position of Chief Development Officer of the 
Company.

3.  Executive's Obligations.

    During the period of his service under this Agreement, the Executive 
shall devote substantially all of his time and energies during business hours 
to the supervision and conduct, faithfully and to the best of his ability, of 
the business and affairs of the Company and to the furtherance of its 
interests, and to such other duties as directed by the Board.

                                       1
<PAGE>

4.   Compensation.

     (a)  The Company shall pay to Executive a salary at the rate of 
$________ per year, in equal bi-weekly installments; provided, however, that 
the Chief Executive Officer shall in good faith review the salary of the 
Executive, on an annual basis, with a view to consideration of appropriate 
merit increases in such salary. In addition, during the term of this 
Agreement, the Executive shall be entitled to participate in incentive 
compensation programs and to receive employee benefits and perquisites at 
least as favorable to the Executive as those provided to Executive as of the 
Effective Time, and as may be enhanced for all senior officers.  Such 
benefits include, but are not limited to (i) the annual bonus plan for which 
senior executives of the Company are generally eligible, (ii) awards under 
any stock option, restricted stock, or equity based incentive compensation 
plan or arrangement maintained by the Company for which senior executives of 
the Company are generally eligible, (iii)  all employee benefit plans, 
programs and arrangements of the Company for which senior executives of the 
Company are generally eligible, and (iv) all benefits and perquisites being 
provided to the Executive by Promus Hotel Corporation immediately prior to 
the Effective Time including, but not limited to, the "rabbi trust" (provided 
pursuant to the escrow agreement dated June 30, 1995, as amended (the "Escrow 
Agreement")) which will continue in full force subject to its terms and 
conditions and the obligations of which will be assumed or guaranteed by the 
Company.  There will be no diminution of the compensation, perquisites, or 
benefits set forth in this Section 4 except as provided in this Agreement.

     (b) Executive shall also be entitled to the benefits under his Severance 
Agreement with Promus Hotel Corporation dated September 1, 1997, a copy of 
which is attached hereto as Exhibit A (the "Severance Agreement"), which will 
continue in force subject to its terms and conditions including the 
termination and amendment provisions thereof, and which will affect the 
Company's obligations under this Agreement as described in Section 9 hereof.

5.   Termination Without Cause or Resignation for Good Reason.

     5.01    The Executive shall be treated as having  incurred a "Covered 
Termination" hereunder if his employment is terminated (i) by the Company 
other than for Cause (as defined in Section 10.01 hereof) or (ii) by the 
Executive for Good Reason (as defined in Section 10.02 hereof).  The 
Executive shall not be treated as having incurred a Covered Termination if 
his employment is terminated as a result of death or disability, as provided 
in Sections 7 and 8 hereof, respectively.

     5.02    (a)  The amount of the severance payment to be paid to the 
Executive upon Covered Termination shall be the amount determined by 
multiplying 3.00 times the sum of:

          (1) the Executive's Annual Base Salary as in effect immediately 
prior to the Date of Termination; plus, 

                                       2
<PAGE>

          (2) the Executive's Bonus Amount applicable for the fiscal year in 
which the Date of Termination occurs; plus, 

          (3) a benefit allowance of 25% of the Executive's Annual Base 
Salary as in effect immediately prior to the Date of Termination.

     (b)  In addition to the severance payment provided under Paragraph 
5.02(a) hereof, the Executive shall be entitled to the following benefits and 
other rights in the event of his Covered Termination:

          (1) Accrued Rights.  The Executive shall be entitled to the 
following payments and benefits in respect of accrued compensation rights 
upon a Covered Termination, in addition to other rights provided under this 
Agreement: 

               (i) payment of any accrued but unpaid Annual Base Salary and 
annual bonus (for any completed fiscal year) through the Date of Termination; 

              (ii) payment of a pro-rata portion of the Bonus Amount for the 
fiscal year of the Company in which the Covered Termination occurs, based on 
the number of days of such year prior to the Date of Termination; and 
                      
             (iii) all benefits and rights accrued under the employee benefit 
plans, fringe benefits programs and payroll practices of the Company in 
accordance with their terms (including, without limitation, employee pension, 
employee welfare, incentive bonus, stock incentive plans, and any accrued 
vacation or sick pay time).
    
          (2) Outplacement Services.  Upon the occurrence of a Covered
Termination, the Executive shall be provided, at the Company's sole expense,
with professional outplacement services consistent with the Executive's duties
or profession and of a type and level customary for persons in his position, as
selected by the Company, subject to reasonable limitations established by the
Company as to duration and dollar amounts.

          (3) Equity Rights.  Upon the occurrence of a Covered Termination  
all outstanding awards of stock options and restricted stock that have been 
granted to the Executive shall continue to become vested and exercisable 
following the Date of Termination at the same times and on the same basis as 
if the Executive had remained employed by the Company and, in the case of 
stock options, shall remain exercisable following the vesting thereof until 
the expiration of the original full term.

                                       3
<PAGE>

    5.03    For purposes of this Agreement:

    (a)  "Annual Base Salary" shall mean the Executive's gross annual salary 
before any deductions, exclusions or any deferrals or contributions under any 
Company plan or program, but excluding bonuses, incentive compensation, 
employee benefits or any other non-salary form of compensation (determined 
without regard to any reduction in Annual Base Salary that results in "Good 
Reason" termination).

    (b)  "Bonus Amount" shall mean the greater of (i) the dollar amount of 
the annual bonus that would be payable to the Executive under the Company's 
annual bonus plan applicable to the Executive, assuming payment at the 
Executive's target level for the then-current full fiscal year (determined 
without regard to any reduction in target bonus percentage that results in 
"Good Reason" termination), or (ii) the dollar amount of the bonus paid or 
payable to the Executive under the Company's annual bonus plan for the most 
recently completed fiscal year under such plan.  For the purposes hereof, the 
"Bonus Amount" shall not include any special bonuses paid outside of the 
Company's generally applicable annual bonus plan.

6.  Termination For Cause or Resignation Without Good Reason.

    6.01    The Board will have the right to terminate Executive at any time 
from his then-current position for Cause (as defined in paragraph 10.01 
herein).

    6.02    If Executive is terminated for Cause or if he resigns his 
position without Good Reason (including if he retires without Good Reason), 
then (i) all of his rights and benefits under this Agreement shall thereupon 
terminate and his employment shall be deemed terminated on the date of such 
termination or resignation, (ii) he shall be entitled to all accrued rights, 
payments and benefits vested or paid on or before such date under the 
Company's plans and programs, but unvested stock options and unvested shares 
of restricted stock, if any, will be forfeited.

7.  Death.

    In the event of Executive's death during his employment under this 
Agreement, his salary and all rights and benefits under this Agreement will 
terminate, and his estate and beneficiary(ies) will receive the benefits they 
are entitled to under the terms of the Company's benefit plans and programs 
by reason of a participant's death during active employment and the 
applicable rights and benefits under the Company's stock plans.  

8.  Disability.

                                       4
<PAGE>

    In the event of Executive's disability during his employment under this 
Agreement, he will be entitled to apply at his option for the Company's long 
term disability benefits.  If he is accepted for such benefits, then the 
terms and provisions of the Company's benefit plans and programs that are 
applicable in the event of such disability of an employee shall apply in lieu 
of the salary and benefits under this Agreement.  If Executive is disabled so 
that he cannot perform his duties (as determined by the Human Resources 
Committee), and if he does not apply for long term disability benefits or is 
not accepted for such benefits, then the Board may terminate his duties under 
this Agreement and, in such event, he will receive two years' salary 
continuation together with all other benefits, and, during such period of 
salary continuation, any stock options and restricted stock grants then in 
existence will continue in force for vesting purposes.  However, during such 
period of salary continuation for disability, Executive will not be eligible 
to participate in the annual bonus plan nor will he be eligible to receive 
stock option or restricted stock grants or any other long-term incentive 
awards except to the extent approved by the Human Resources Committee.

9.  Severance Agreement.

    Notwithstanding anything elsewhere in this Agreement to the contrary, in 
the event that the Executive incurs a "Covered Termination" as defined in his 
Severance Agreement within the time period specified therein, he will be 
entitled to all the rights, payments and benefits provided under his 
Severance Agreement in lieu of the rights and benefits that would otherwise 
apply under this Agreement by virtue of such termination; provided, however 
that he will also be entitled to the equity rights to the extent provided in 
Section 5.02(b)(3) hereof and the benefits of the Escrow Agreement. 

10. Definitions of Cause and Good Reason.

    10.01   Cause.  Termination by the Company of the Executive's employment
for "Cause" shall mean termination as a result of: 

     (a) the Executive engaging in willful gross neglect of his duties with 
the Company, or the Executive's fraud or dishonesty in connection with his 
performance of duties to the Company, in either case which has a materially 
detrimental effect on the business or operations of the Company; or 

     (b) the Executive's conviction by a court of competent jurisdiction of 
any crime (or upon entering a plea of guilty or nolo contendere to a charge 
of any crime) constituting a felony.

     The Date of Termination for a termination for Cause shall be the date
specified by the Company; provided that Executive shall have received written
notice of such failure or misconduct and shall have continued to engage in such
failure or misconduct after 30 days following receipt of such notice from the
Board, which notice specifically identifies the manner in which the Board
believes that Executive has engaged in such failure or misconduct.  For purposes
of this Paragraph, no act, or failure to act, on the Executive's part shall be
deemed "willful" unless done, or omitted to be done, by the Executive not in
good faith and without reasonable belief that the Executive's action

                                       5
<PAGE>

or omission was in the best interest of the Company.  Notwithstanding the 
foregoing, the Executive shall not be deemed to have been terminated for 
Cause under Section 10.01(a) hereof unless and until there shall have been 
delivered to the Executive a copy of a resolution duly adopted by the 
affirmative vote of not less than three-quarters of the entire membership of 
the Board at a meeting of the Board called and held for such purposes (after 
reasonable notice to the Executive and an opportunity for him, together with 
his counsel, to be heard before the Board), finding that in the good faith 
opinion of the Board the Executive was guilty of failure to substantially 
perform his duties or of misconduct in accordance with the first sentence of 
this paragraph, and of continuing such failure to substantially perform his 
duties or misconduct as aforesaid after notice from the Board, and specifying 
the particulars thereof in detail.
    
    10.02   Good Reason.  "Good Reason" shall mean, without Executive's express
written consent, the occurrence of any of the following circumstances, unless,
in the case of paragraphs (a), (b), (f), (g) of (h) such circumstances are fully
corrected prior to the date of termination specified in the written notice given
by Executive notifying the Company of his resignation for Good Reason.  Such
notice must be given at least 30 days in advance of the Date of Termination, and
shall set forth in reasonable detail the facts and circumstances claimed to
provide the basis for the termination.  Such notice may be given at any time
within two years following the occurrence of the events that provide the basis
for the termination, but not later than the date that is 30 days prior to the
expiration of the then-current term of this Agreement.

            (a)  Any adverse change by the Company in the Executive's position
or title described in Section 2 hereof.

    (b)  The assignment to Executive of any duties inconsistent with his status
as Chief Development Officer of the Company or a substantial adverse alteration
in the nature or status of his responsibilities;

    (c)  A reduction by the Company in his annual base salary of $_______ or as
the same may be increased from time to time pursuant to Section 4 hereof;

    (d)  The relocation of the Company's principal executive offices where
Executive is working to a location more than 50 miles from the location of such
offices on the date of this Agreement, or the Company's requiring Executive to
be based anywhere other than the location of the Company's principal offices
where Executive is working on the date of this Agreement except for required
travel on the Company's business to an extent substantially consistent with
Executive's present business travel obligations;

    (e)  The failure by the Company, without Executive's consent, to pay to him
any portion of his current compensation, except pursuant to a compensation
deferral elected by the Executive, or to pay to Executive any portion of an
installment of deferred compensation under any deferred compensation program of
the Company within thirty days of the date such compensation is due;

    (f)  Except as permitted by this Agreement, the failure by the Company to
continue in effect

                                       6
<PAGE>

any compensation plan (or substitute or alternative plan) in which Executive 
is entitled to participate under Section 4 hereof which is material to 
Executive's total compensation, including, but not limited to, the Company's 
annual bonus plan and equity incentive plan, or the failure by the Company to 
continue Executive's participation therein on a basis that is materially as 
favorable both in terms of the amount of benefits provided and the level of 
Executive's participation relative to other participants at Executive's grade 
level;

    (g)  The failure by the Company to continue to provide Executive with
benefits substantially similar to those enjoyed by him under the Company's
pension and deferred compensation plans, if any, except as required by law, and
the life insurance, medical, health and accident, and disability plans in which
Executive is entitled to participate under Section 4 hereof, or the taking of
any action by the Company which would directly or indirectly materially reduce
any of such benefits or deprive Executive of any material fringe benefit enjoyed
by Executive pursuant to Section 4 hereof, or the failure by the Company to
provide Executive with the number of paid vacation days to which Executive is
entitled; or

    (h)  The failure of the Company to obtain a satisfactory agreement from any
successor to assume and agree to perform this Agreement, as contemplated in
Section 18 hereof.

    Executive's right to terminate his employment pursuant to this Agreement
for Good Reason shall not be affected by Executive's incapacity due to physical
or mental illness.  Executive's continued employment shall not constitute
consent to, or a waiver of rights with respect to, any circumstance constituting
Good Reason hereunder.

11. Excise Tax Reimbursement.

11.01  In the event it shall be determined that any payment or
distribution by the Company or any other person or entity to or for the
Executive's benefit, whether paid or payable or distributed or distributable
pursuant to the terms of this Agreement or otherwise, or whether prior to or
following the Covered Termination in connection with, or arising out of, the
Executive's employment with the Company or a Reorganization Event of the Company
(a "Payment") will be subject to the tax (the "Excise Tax") imposed by section
4999 of the Code, the Company shall pay to the Executive at the time specified
in Section 12 below, an additional amount (the "Gross-Up Payment") such that the
net amount retained by the Executive, after deduction of any Excise Tax on the
Payments and any federal (and state and local) income tax, employment tax and
Excise Tax upon the payment provided for by this paragraph, shall be equal to
the amount of the Payments.  For purposes of determining whether any of the
Payments will be subject to the Excise Tax and the amount of such Excise Tax the
following will apply: 

    (a) any payments or benefits received or to be received by the Executive in
connection with a Reorganization Event of the Company or his termination of
employment (whether pursuant to the terms of this Agreement or any other plan,
arrangement or agreement with the Company, any person whose actions result in a
Reorganization Event of the Company or any person affiliated with the Company or
such person) shall be treated as "parachute payments" within the meaning of
section 280G(b)(2) of the Code, and all "excess parachute payments" within the
meaning of section

                                       7
<PAGE>

280G(b)(1) shall be treated as subject to the Excise Tax, unless in the 
opinion of tax counsel selected by the Company's independent auditors and 
acceptable to the Executive such other payments or benefits (in whole or in 
part) do not constitute parachute payments, or such excess parachute payments 
(in whole or in part) represent reasonable compensation for services actually 
rendered within the meaning of section 280G(b)(4) of the Code in excess of 
the base amount within the meaning of section 280G(b)(3) of the Code, or are 
otherwise not subject to the Excise Tax; and

    (b) the value of any non-cash benefits or any deferred payment or benefit
shall be determined by the Company's independent auditors in accordance with
proposed, temporary or final regulations under Sections 280G(d)(3) and (4) of
the Code or, in the absence of such regulations, in accordance with the
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of
determining the amount of the Gross-Up Payment, the Executive shall be deemed to
pay federal income taxes at the highest marginal rate of federal income taxation
in the calendar year in which the Gross-Up Payment is to be made and state and
local income taxes at the highest marginal rate of taxation in the state and
locality of the Executive's residence on the Date of Termination, net of the
maximum reduction in federal income taxes which could be obtained from deduction
of such state and local taxes.  In the event that the amount of Excise Tax
attributable to Payments is subsequently determined to be less than the amount
taken into account hereunder at the time of termination of the Executive's
employment, he shall repay to the Company at the time that the amount of such
reduction in Excise Tax is finally determined the portion of the Gross-Up
Payment attributable to such reduction (plus the portion of the Gross-Up Payment
attributable to the Excise Tax, employment tax and federal (and state and local)
income tax imposed on the Gross-Up Payment being repaid by the Executive if such
repayment results in a reduction in Excise Tax and/or a federal (and state and
local) income tax deduction) plus interest on the amount of such repayment at
the rate provided in section 1274(b)(2) (B) of the Code.  In the event that the
Excise Tax attributable to Payments is determined to exceed the amount taken
into account hereunder at the time of the termination of the Executive's
employment (including by reason of any payment the existence or amount of which
cannot be determined at the time of the Gross-Up Payment), the Company shall
make an additional gross-up payment in respect of such excess (plus any interest
payable with respect to such excess) at the time that the amount of such excess
is finally determined.

12. Method of Payment.

    The payments provided for in Sections 5 and 11 hereof shall be made in a
cash lump-sum payment, net of any required tax withholding, upon the later of
(i) the fifth (5th) business day following the Date of Termination or (ii) the
expiration of the seven (7) day revocation period applicable under the release
of claims referred to in Section 13 hereof.  Any payment required under Sections
5 and 11 or any other provision of this Agreement that is not made in a timely
manner shall bear interest at a rate equal to one-hundred twenty (120) percent
of the monthly compounded applicable federal rate, as in effect under Section
1274(d) of the Code for the month in which the payment is required to be made.

13. Release of Claims.

                                       8
<PAGE>

    As conditions of Executive's entitlement to the severance payments and
benefits provided by this Agreement, the Executive shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit A (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).

14. Executive Covenants.

    14.01   General.  The Executive and the Company understand and agree that
the purpose of the provisions of this Section 14 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Executive's right to work, earn a
living, or acquire and possess property from the fruits of his labor.  The
Executive hereby acknowledges that the post-employment restrictions set forth in
this Section 14 are reasonable and that they do not, and will not, unduly impair
his ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the limitations of reasonableness imposed by law
upon restrictions set forth herein, the Executive shall be subject to the
restrictions set forth in this Section 14.

    14.02   Definitions.  The following capitalized terms used in this Section
14 shall have the meanings assigned to them below, which definitions shall apply
to both the singular and the plural forms of such terms:

"Confidential Information" means any confidential or proprietary information
possessed by the Company without limitation, any confidential "know-how",
customer lists, details of client or consultant contracts, current and
anticipated customer requirements, pricing policies, price lists, market
studies, business plans, operational methods, marketing plans or strategies,
product development techniques or plans, computer software programs (including
object code and source code), data and documentation, data base technologies,
systems, structures and architectures, inventions and ideas, past, current and
planned research and development, compilations, devices, methods, techniques,
processes, financial information and data, business acquisition plans, new
personnel acquisition plans and any other information that would constitute a
trade secret under the common law or statutory law of the State of Delaware.

"Determination Date" means the date of termination of the Executive's employment
with the Company for any reason whatsoever or any earlier date (during the
Restricted Period) of an alleged breach of the Restrictive Covenants by the
Executive.

"Person" means any individual or any corporation, partnership, joint venture,
association or other entity or enterprise.

"Principal or Representative" means a principal, owner, partner, shareholder,
joint venturer, member, trustee, director, officer, manager, employee, agent,
representative or consultant.

"Protected Employees" means employees of the Company or its affiliated companies
who were employed by the Company or its affiliated companies at any time within
six (6) months prior to the

                                       9
<PAGE>

Determination Date.

"Restricted Period" means the period of the Executive's employment by the
Company plus a period extending two (2) years from the date of termination of
employment.

"Restrictive Covenants" means the restrictive covenants contained in Section
14.03 hereof.


    14.03   Restrictive Covenants.

    (a)  Restriction on Disclosure and Use of Confidential Information.  The
Executive understands and agrees that the Confidential Information constitutes a
valuable asset of the Company and its affiliated entities, and may not be
converted to the Executive's own use.  Accordingly, the Executive hereby agrees
that the Executive shall not, directly or indirectly, at any time during the
Restricted Period reveal, divulge or disclose to any Person not expressly
authorized by the Company any Confidential Information, and the Executive shall
not, directly or indirectly, at any time during the Restricted Period use or
make use of any Confidential Information in connection with any business
activity other than that of the Company.  The parties acknowledge and agree that
this Agreement is not intended to, and does not, alter either the Company's
rights or the Executive's obligations under any state or federal statutory or
common law regarding trade secrets and unfair trade practices.

    (b)  Nonsolicitation of Protected Employees.  The Executive understands and
agrees that the relationship between the Company and each of its Protected
Employees constitutes a valuable asset of the Company and may not be converted
to the Executive's own use.  Accordingly, the Executive hereby agrees that
during the Restricted Period the Executive shall not directly or indirectly on
the Executive's own behalf or as a Principal or Representative of any Person
solicit any Protected Employee to terminate his or her employment with the
Company.

    (c) Noninterference with Company Opportunities.  The Executive understands
and agrees that all hotel development opportunities with which he is involved
during his employment with the Company constitute valuable assets of the Company
and its affiliated entities, and may not be converted to the Executive's own
use.  Accordingly, the Executive hereby agrees that during the Restricted Period
the Executive shall not directly or indirectly on the Executive's own behalf or
as a Principal or Representative of any Person, interfere with, solicit, pursue,
or in any way make use of any such hotel development opportunities.

    14.04   Exceptions from Disclosure Restrictions.  Anything herein to the
contrary notwithstanding, the Executive shall not be restricted from disclosing
or using Confidential Information that: (a) is or becomes generally available to
the public other than as a result of an unauthorized disclosure by the Executive
or his agent; (b) becomes available to the Executive in a manner that is not in
contravention of applicable law from a source (other than the Company or its
affiliated entities or one of its or their officers, employees, agents or
representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or other similar
agreement; (c) was known to the Executive on a non-confidential

                                       10
<PAGE>

basis and not in contravention of applicable law or a confidentiality or 
other similar agreement before its disclosure to the Executive by the Company 
or its affiliated entities or one of its or their officers, employees, agents 
or representatives; or (d) is required to be disclosed by law, court order or 
other legal process; provided, however, that in the event disclosure is 
required by law, court order or legal process, the Executive shall provide 
the Company with prompt notice of such requirement so that the Company may 
seek an appropriate protective order prior to any such required disclosure by 
the Executive.

    14.05   Enforcement of the Restrictive Covenants.

    (a)  Rights and Remedies upon Breach.  In the event the Executive breaches,
or threatens to commit a breach of, any of the provisions of the Restrictive
Covenants, the Company shall have the right and remedy to enjoin, preliminarily
and permanently, the Executive from violating or threatening to violate the
Restrictive Covenants and to have the Restrictive Covenants specifically
enforced by any court of competent jurisdiction, it being agreed that any breach
or threatened breach of the Restrictive Covenants would cause irreparable injury
to the Company and that money damages would not provide an adequate remedy to
the Company.  The rights referred to in the preceding sentence shall be
independent of any others and severally enforceable, and shall be in addition
to, and not in lieu of, any other rights and remedies available to the Company
at law or in equity.

    (b)  Severability of Covenants.  The Executive acknowledges and agrees that
the Restrictive Covenants are reasonable and valid in time and space and in all
other respects.  If any court determines that any Restrictive Covenants, or any
part thereof, is invalid or unenforceable, the remainder of the Restrictive
Covenants shall not thereby be affected and shall be given full effect, without
regard to the invalid portions. 

15. Cooperation in Future Matters.

The Executive hereby agrees that, for a period of three (3) years following his
Date of Termination, he shall cooperate with the Company's reasonable requests
relating to matters that pertain to the Executive's employment by the Company,
including, without limitation, providing information or limited consultation as
to such matters, participating in legal proceedings, investigations or audits on
behalf of the Company, or otherwise making himself reasonably available to the
Company for other related purposes.  Any such cooperation shall be performed at
times scheduled taking into consideration the Executive's other commitments, and
the Executive shall be compensated at a reasonable hourly or per diem rate to be
agreed by the parties to the extent such cooperation is required on more than an
occasional and limited basis.  The Executive shall not be required to perform
such cooperation to the extent it conflicts with any requirements of exclusivity
of service for another employer or otherwise, nor in any manner that in the good
faith belief of the Executive would conflict with his rights under or ability to
enforce this Agreement.

16. Indemnification.

    (a)  Following the Date of Termination, the Company agrees that it will,
indemnify and

                                       11
<PAGE>

hold harmless the Executive, against any costs or expenses (including 
attorneys' fees), judgments, fines, losses, claims, damages, liabilities or 
amounts paid in settlement incurred in connection with any claim, action, 
suit, proceeding or investigation, whether civil, criminal, administrative or 
investigative, arising out of or pertaining to matters existing or occurring 
at or prior to the Date of Termination, whether asserted or claimed prior to, 
at or after the Date of Termination, to the fullest extent that the Company 
would have been permitted under Delaware law and its certificate of 
incorporation or bylaws in effect on the date hereof to indemnify the 
Executive (and the Company shall also advance expenses as incurred to the 
fullest extent permitted under applicable law, provided the Executive 
provides an undertaking to repay advances if it is ultimately determined that 
the Executive is not entitled to indemnification).

    (b)  For a period of six years after the  Date of Termination, the Company
shall maintain (to the extent available in the market) in effect a director's
and officer's liability insurance policy with coverage in amount and scope at
least as favorable as the Company's existing coverage on the Date of
Termination; provided that in no event shall the Company be required to expend
in the aggregate in excess of 200% of the annual premium paid by the Company for
such coverage as of the Date of Termination; and if such premium would at any
time exceed 200% of the such amount, then the Company shall maintain insurance
policies which provide the maximum and best coverage available at an annual
premium equal to 200% of such amount.

    (c)  The provisions of this Section 16 are intended to be an addition to
the rights otherwise available to the Executive by law, charter, statute, bylaw
or separate agreement between the Company and the Executive. The Company shall
continue to honor any indemnification agreement between the Company and the
Executive entered into prior to the Date of Termination in accordance with the
terms thereof.

17. Binding Arbitration and Legal Fees.

    17.01   Any dispute or controversy arising under or in connection with this
Agreement shall be settled exclusively by arbitration in accordance with the
rules of the American Arbitration Association then in effect.  Judgment may be
entered on the arbitrator's award in any court having jurisdiction. 

    17.02   The Company shall pay all reasonable legal fees and expenses
incurred by the Executive in connection with any arbitration (or other
proceeding whether or not instituted by the Company or the Executive), relating
to the interpretation or enforcement of any provision of this Agreement
(including any action seeking to obtain or enforce any right or benefit provided
by this Agreement) or in connection with any tax audit or proceeding relating to
the application of Section 4999 of the Code to any payment or benefit provided
by the Company.

18. Assumption of Agreement on Merger, Consolidation or Sale of Assets.

    The Company agrees that, until the termination of this Agreement as above
provided, it will not enter into any merger or consolidation with another
company in which the Company is not the surviving company, or sell or dispose of
all or substantially all of its assets, unless the company

                                       12
<PAGE>

which is to survive such merger or consolidation or the prospective purchaser 
of such assets first makes a written agreement with the Executive either (1) 
assuming the Company's financial obligations to the Executive under this 
Agreement, or (2) making such other provision for the Executive as is 
satisfactory to the Executive and approved by him in writing in lieu of 
assuming the Company's financial obligations to him under this Agreement. 

19. Assurances on Liquidation.

    The Company agrees that, until the termination of this Agreement as above
provided, it will not voluntarily liquidate or dissolve without first making a
full settlement, or, at the discretion of the Executive, a written agreement
with the Executive satisfactory to and approved by him in writing, in
fulfillment of or in lieu of its obligations to him under this Agreement.

20. Amendments.

    This Agreement may not be amended or modified orally, and no provision
hereof may be waived, except in a writing signed by the parties hereto.

21. Assignment.

    21.01   Except as otherwise provided in paragraph 21.02, this Agreement
cannot be assigned by either party hereto except with the written consent of the
other.  Any assignment of this Agreement by either party hereto shall not
relieve such party of its or his obligations hereunder.

    21.02   The Company may elect to perform any or all of its obligations
under this Agreement through a wholly-owned subsidiary or other subsidiary, and
if the Company so elects, Executive will be an employee of such wholly-owned
subsidiary, or such other subsidiary.  Notwithstanding any such election, the
Company's obligations to Executive under this Agreement will continue in full
force and effect as obligations of the Company, and the Company shall retain
primary liability for their performance.

22. Binding Effect.

    This Agreement shall be binding upon and inure to the benefit of the
personal representatives and successors in interest of the Company.

23. Choice of Law.

    This Agreement shall be governed by the law of the State of Tennessee as to
all matters, including, but not limited to, matters of validity, construction,
effect and performance.

24. Severability of Provisions.

    In case any one or more of the provisions contained in this Agreement shall
be invalid, illegal or unenforceable in any respect, the validity, legality and
enforceability of the remaining

                                       13
<PAGE>

provisions contained herein shall not in any way be affected or impaired 
thereby, and this Agreement shall be interpreted as if such invalid, illegal 
or unenforceable provision were not contained herein.

IN WITNESS WHEREOF, the Executive has hereunto set his hand and the Company has
caused this Agreement to be executed in its name and on its behalf and its
corporate seal to be hereunto affixed and attested by its corporate officers
thereunto duly authorized.


EXECUTIVE

___________________________________
    Thomas L. Keltner


(Corporate Seal) PARENT HOLDING CORP.



By:________________________________
    
ATTEST:___________________________
            Secretary

                                       14

<PAGE>

                                                         

                             EMPLOYMENT AGREEMENT

      THIS AGREEMENT, made as of the ___ day of November, 1997, between 
Parent Holding Corp., a Delaware corporation with its executive offices at 
755 Crossover Lane, Memphis, Tennessee (the "Company") and William L. 
Perocchi (the "Executive").  The Company and the Executive agree as follows:

1.    Effective Date and Term.

      The Company desires to secure the services of the Executive and the 
Executive is willing to execute this Agreement with respect to his employment. 
The employment of the Executive hereunder shall become effective at the 
Effective Time under the Agreement of Plan of Merger (the "Merger Agreement") 
dated as of September 1, 1997 among Doubletree Corporation, Promus Hotel 
Corporation and Parent Holding Corp. (the "Effective Time"), and shall expire 
on the fifth anniversary of the Effective Time (the "Initial Term"), subject 
to the terms and conditions herein. The Initial Term shall be automatically 
extended for an additional term of one (1) year on each anniversary of the 
expiration of the Initial Term unless, no later than thirty (30) days prior 
to the expiration of any term, either the Company or the Executive gives 
written notice to the other that the term will not be extended, in which case 
the Executive's employment hereunder shall terminate upon the expiration of 
the then current term. This Agreement is effective upon its execution by the 
parties hereto; PROVIDED, HOWEVER, that the obligation of the parties with 
respect to the employment of the Executive shall only become operative upon 
the occurrence of the Effective Time under the Merger Agreement.  If the 
Merger Agreement is abandoned or for any other reason the transactions 
contemplated thereby are not consummated, this Agreement shall be null and 
void and the parties shall have no further obligations hereunder.

2.    Agreement of Employment.

      The Company agrees to, and hereby does, employ the Executive, and the 
Executive agrees to, and hereby does accept, employment by the Company, in a 
full-time capacity, pursuant to the provisions of this Agreement and of the 
By-laws of the Company and subject to the control of the Board of Directors 
of the Company (the "Board").  The Executive shall, effective as of the 
Effective Time, hold the position of Executive Vice President and Chief  
Financial Officer of the Company.  It is hereby understood that the foregoing 
requirements regarding the Executive's position are subject to the Bylaws of 
the Company, which require a vote of at least 75% of the members of the Board 
to change such position.


                                       1

<PAGE>

3.    Executive's Obligations.

      During the period of his service under this Agreement, the Executive 
shall devote substantially all of his time and energies during business hours 
to the supervision and conduct, faithfully and to the best of his ability, of 
the business and affairs of the Company and to the furtherance of its 
interests, and to such other duties as directed by the Board.

4.    Compensation.

      (a)  The Company shall pay to Executive a salary at the rate of 
$________ per year, in equal bi-weekly installments; PROVIDED, HOWEVER, that 
the Human Resources Committee of the Board (the "Human Resources Committee") 
shall in good faith review the salary of the Executive, on an annual basis, 
with a view to consideration of appropriate merit increases in such salary. 
In addition, during the term of this Agreement, the Executive shall be 
entitled to participate in incentive compensation programs and to receive 
employee benefits and perquisites at least as favorable to the Executive as 
those provided to Executive as of the Effective Time, and as may be enhanced 
for all senior officers.  Such benefits include, but are not limited to (i) 
the annual bonus plan for which senior executives of the Company are 
generally eligible, (ii) awards under any stock option, restricted stock, or 
equity based incentive compensation plan or arrangement maintained by the 
Company for which senior executives of the Company are generally eligible, 
(iii)  all employee benefit plans, programs and arrangements of the Company 
for which senior executives of the Company are generally eligible, and (iv) 
all benefits and perquisites being provided to the Executive by Doubletree 
Corporation immediately prior to the Effective Time.  There will be no 
diminution of the compensation, perquisites, or benefits set forth in this 
Section 4 except as provided in this Agreement.

      (b)  The Company shall assume and honor, in accordance with their terms, 
the obligations of Doubletree to the Executive under the Doubletree 
Supplemental Executive Retirement Plan.  Executive shall also be entitled to 
the benefits under his Severance Agreement with Doubletree Corporation dated 
November __, 1997, a copy of which is attached hereto as Exhibit A (the 
"Severance Agreement"), which will continue in force subject to its terms and 
conditions including the termination and amendment provisions thereof, and 
which will affect the Company's obligations under this Agreement as described 
in Section 9 hereof.

5.    Termination Without Cause or Resignation for Good Reason.

      5.01  The Executive shall be treated as having  incurred a "Covered 
Termination" hereunder if his employment is terminated (i) by the Company 
other than for Cause (as defined in Section 10.01 hereof) or (ii) by the 
Executive for Good Reason (as defined in Section 10.02 hereof).  The 
Executive shall not be treated as having incurred a Covered Termination if 
his employment is terminated as a result of death or disability, as provided 
in Sections 7 and 8 hereof, respectively.  NOTE that, as provided in Section 
9 hereof, if the Executive becomes entitled to termination payments under the 
applicable provisions of his Severance Agreement, such provisions shall 
supersede the following provisions of this Section 5.


                                       2

<PAGE>

      5.02 (a)  The amount of the severance payment to be paid to the 
Executive upon Covered Termination shall be the amount determined by 
multiplying 3.00 times the sum of:

                        (1) the Executive's Annual Base Salary as in effect 
immediately prior to the Date of Termination; PLUS, 

                        (2) the Executive's Bonus Amount applicable for the 
fiscal year in which the Date of Termination occurs; PLUS, 

                        (3) a benefit allowance of 25% of the Executive's 
Annual Base Salary as in effect immediately prior to the Date of Termination.

              (b)  In addition to the severance payment provided under 
Paragraph 5.02(a) hereof, the Executive shall be entitled to the following 
benefits and other rights in the event of his Covered Termination:

                        (1) Accrued Rights.  The Executive shall be entitled 
to the following payments and benefits in respect of accrued compensation 
rights upon a Covered Termination, in addition to other rights provided under 
this Agreement: 

                                (i) payment of any accrued but unpaid Annual 
Base Salary and annual bonus (for any completed fiscal year) through the Date 
of Termination; 

                                (ii) payment of a pro-rata portion of the 
Bonus Amount for the fiscal year of the Company in which the Covered 
Termination occurs, based on the number of days of such year prior to the 
Date of Termination; 

                                (iii) all benefits and rights accrued under 
the employee benefit plans, fringe benefits programs and payroll practices of 
the Company in accordance with their terms (including, without limitation, 
employee pension, employee welfare, incentive bonus, stock incentive plans, 
and any accrued vacation or sick pay time); and 

                                (iv) payment of the Executive's benefits 
pursuant to the terms of the Doubletree Hotels Corporation Supplemental 
Executive Retirement Plan (the "SERP"), which, for the purposes thereof, the 
Company acknowledges that the Proposed Merger shall constitute a "Change of 
Control" (as defined therein), and which is attached as Exhibit B hereto. 

                        (2) Outplacement Services.  Upon the occurrence of a 
Covered Termination, the Executive shall be provided, at the Company's sole 
expense, with professional outplacement services consistent with the 
Executive's duties or profession and of a type and level customary for 
persons in his position, as selected by the Company, subject to reasonable 
limitations established by the Company as to duration and dollar amounts.


                                       3

<PAGE>

                        (3) Equity Rights.

                        Upon the occurrence of a Covered Termination, all 
outstanding awards of stock options and restricted stock that have been 
granted to the Executive shall continue to become vested following the Date 
of Termination at the same times and on the same basis as if the Executive 
had remained employed by the Company and, in the case of stock options, shall 
remain exercisable following the vesting thereof until the expiration of the 
original full term.

      5.03  For purposes of this Agreement:

      (a)  "Annual Base Salary" shall mean the Executive's gross annual 
salary before any deductions, exclusions or any deferrals or contributions 
under any Company plan or program, but excluding bonuses, incentive 
compensation, employee benefits or any other non-salary form of compensation 
(determined without regard to any reduction in Annual Base Salary that 
results in "Good Reason" termination).

      (b)  "Bonus Amount" shall mean the greater of (i) the dollar amount of 
the annual bonus that would be payable to the Executive under the Company's 
annual bonus plan applicable to the Executive, assuming payment at the 
Executive's target level for the then-current full fiscal year (determined 
without regard to any reduction in target bonus percentage that results in 
"Good Reason" termination), or (ii) the dollar amount of the bonus paid or 
payable to the Executive under the Company's annual bonus plan for the most 
recently completed fiscal year under such plan.  For the purposes hereof, the 
"Bonus Amount" shall not include any special bonuses paid outside of the 
Company's generally applicable annual bonus plan.

6.    Termination For Cause or Resignation WITHOUT Good Reason.

      6.01  The Board will have the right to terminate Executive at any time 
from his then-current position for Cause (as defined in paragraph 10.01 
herein).

      6.02  If Executive is terminated for Cause or if he resigns his 
position without Good Reason (including if he retires without Good Reason), 
then (i) all of his rights and benefits under this Agreement shall thereupon 
terminate and his employment shall be deemed terminated on the date of such 
termination or resignation, (ii) he shall be entitled to all accrued rights, 
payments and benefits vested or paid on or before such date under the 
Company's plans and programs, but unvested stock options and unvested shares 
of restricted stock, if any, will be forfeited.

7.  Death.


                                       4

<PAGE>

      In the event of Executive's death during his employment under this 
Agreement, his salary and all rights and benefits under this Agreement will 
terminate, and his estate and beneficiary(ies) will receive the benefits they 
are entitled to under the terms of the Company's benefit plans and programs 
by reason of a participant's death during active employment and the 
applicable rights and benefits under the Company's stock plans.  

8.    Disability.

      In the event of Executive's disability during his employment under this 
Agreement, he will be entitled to apply at his option for the Company's long 
term disability benefits.  If he is accepted for such benefits, then the 
terms and provisions of the Company's benefit plans and programs that are 
applicable in the event of such disability of an employee shall apply in lieu 
of the salary and benefits under this Agreement.  If Executive is disabled so 
that he cannot perform his duties (as determined by the Human Resources 
Committee), and if he does not apply for long term disability benefits or is 
not accepted for such benefits, then the Board may terminate his duties under 
this Agreement and, in such event, he will receive two years' salary 
continuation together with all other benefits, and, during such period of 
salary continuation, any stock options and restricted stock grants then in 
existence will continue in force for vesting purposes.  However, during such 
period of salary continuation for disability, Executive will not be eligible 
to participate in the annual bonus plan nor will he be eligible to receive 
stock option or restricted stock grants or any other long-term incentive 
awards except to the extent approved by the Human Resources Committee.

9.    Severance Agreement.

      Notwithstanding anything elsewhere in this Agreement to the contrary, 
in the event that the Executive incurs a "Covered Termination" as defined in 
his Severance Agreement within the time period specified therein, he will be 
entitled to all the rights, payments and benefits provided under his 
Severance Agreement in lieu of the rights and benefits that would otherwise 
apply under this Agreement by virtue of such termination (except to the 
extent specifically incorporated therein by reference to this Agreement). The 
occurrence of a Covered Termination following the occurrence of more than 
one Reorganization Event after the date hereof shall not entitle the 
Executive to multiple severance payments under this Agreement and/or the 
Severance Agreement.

10.   Definitions of Cause and Good Reason.

      10.01  Cause.  Termination by the Company of the Executive's employment 
for "Cause" shall mean termination as a result of: 

(a) the Executive engaging in willful gross neglect of his duties with the 
Company, or the Executive's fraud or dishonesty in connection with his 
performance of duties to the Company, in either case which has a materially 
detrimental effect on the business or operations of the Company; or 

(b) the Executive's conviction by a court of competent jurisdiction of any 
crime (or upon entering a plea of guilty or NOLO CONTENDERE to a charge of 
any crime) constituting a felony.


                                       5

<PAGE>

      The Date of Termination for a termination for Cause shall be the date 
specified by the Company; PROVIDED that Executive shall have received written 
notice of such failure or misconduct and shall have continued to engage in 
such failure or misconduct after 30 days following receipt of such notice 
from the Board, which notice specifically identifies the manner in which the 
Board believes that Executive has engaged in such failure or misconduct.  For 
purposes of this Paragraph, no act, or failure to act, on the Executive's 
part shall be deemed "willful" unless done, or omitted to be done, by the 
Executive not in good faith and without reasonable belief that the 
Executive's action or omission was in the best interest of the Company.  
Notwithstanding the foregoing, the Executive shall not be deemed to have been 
terminated for Cause under Section 10.01(a) hereof unless and until there 
shall have been delivered to the Executive a copy of a resolution duly 
adopted by the affirmative vote of not less than three-quarters of the entire 
membership of the Board at a meeting of the Board called and held for such 
purposes (after reasonable notice to the Executive and an opportunity for 
him, together with his counsel, to be heard before the Board), finding that 
in the good faith opinion of the Board the Executive was guilty of failure to 
substantially perform his duties or of misconduct in accordance with the 
first sentence of this paragraph, and of continuing such failure to 
substantially perform his duties or misconduct as aforesaid after notice from 
the Board, and specifying the particulars thereof in detail.

      10.02  Good Reason.  "Good Reason" shall mean, without Executive's 
express written consent, the occurrence of any of the following 
circumstances, unless, in the case of paragraphs (a), (b), (f), (g) of (h) 
such circumstances are fully corrected prior to the date of termination 
specified in the written notice given by Executive notifying the Company of 
his resignation for Good Reason.  Such notice must be given at least 30 days 
in advance of the Date of Termination, and shall set forth in reasonable 
detail the facts and circumstances claimed to provide the basis for the 
termination.  Such notice may be given at any time within two years following 
the occurrence of the events that provide the basis for the termination, but 
not later than the date that is 30 days prior to the expiration of the 
then-current term of this Agreement.

      (a)  Any adverse change by the Company in the Executive's position or 
title described in Section 2 hereof, whether or not any such change has been 
approved by a vote of at least 75% of the members of the Board.

      (b)  The assignment to Executive of any duties inconsistent with his 
status as Executive Vice President and Chief Financial Officer of the Company 
or a substantial adverse alteration in the nature or status of his 
responsibilities;

      (c)  A reduction by the Company in his annual base salary of $_______ 
or as the same may be increased from time to time pursuant to Section 4 
hereof;

      (d)  The relocation of the Company's principal executive offices where 
Executive is working to a location more than 50 miles from the location of 
such offices on the date of this Agreement, or the Company's requiring 
Executive to be based anywhere other than the location of the Company's 
principal offices where Executive is working on the date of this Agreement 


                                       6

<PAGE>

except for required travel on the Company's business to an extent 
substantially consistent with Executive's present business travel obligations;

      (e)  The failure by the Company, without Executive's consent, to pay to 
him any portion of his current compensation, except pursuant to a 
compensation deferral elected by the Executive, or to pay to Executive any 
portion of an installment of deferred compensation under any deferred 
compensation program of the Company within thirty days of the date such 
compensation is due;

      (f)  Except as permitted by this Agreement, the failure by the Company to 
continue in effect any compensation plan (or substitute or alternative plan) 
in which Executive is entitled to participate under Section 4 hereof which is 
material to Executive's total compensation, including, but not limited to, 
the Company's annual bonus plan and equity incentive plan, or the failure by 
the Company to continue Executive's participation therein on a basis that is 
materially as favorable both in terms of the amount of benefits provided and 
the level of Executive's participation relative to other participants at 
Executive's grade level;

      (g)  The failure by the Company to continue to provide Executive with 
benefits substantially similar to those enjoyed by him under the Company's 
pension and deferred compensation plans, if any, except as required by law, 
and the life insurance, medical, health and accident, and disability plans in 
which Executive is entitled to participate under Section 4 hereof, or the 
taking of any action by the Company which would directly or indirectly 
materially reduce any of such benefits or deprive Executive of any material 
fringe benefit enjoyed by Executive pursuant to Section 4 hereof, or the 
failure by the Company to provide Executive with the number of paid vacation 
days to which Executive is entitled; 

      (h) The failure by the Company to continue in effect and honor in 
accordance with its terms the SERP as applied to the Executive; or

      (i)  The failure of the Company to obtain a satisfactory agreement from 
any successor to assume and agree to perform this Agreement, as contemplated 
in Section 18 hereof.

      Executive's right to terminate his employment pursuant to this Agreement 
for Good Reason shall not be affected by Executive's incapacity due to 
physical or mental illness.  Executive's continued employment shall not 
constitute consent to, or a waiver of rights with respect to, any 
circumstance constituting Good Reason hereunder.

11.  Excise Tax Reimbursement.

11.01 In the event it shall be determined that any payment or 
distribution by the Company or any other person or entity to or for the 
Executive's benefit, whether paid or payable or distributed or distributable 
pursuant to the terms of this Agreement or otherwise, or whether prior to or 
following the Covered Termination in connection with, or arising out of, the 
Executive's employment with the Company or a Reorganization Event of the 
Company (a "Payment") will be subject to the tax (the "Excise Tax") imposed 
by section 4999 of the Code, the Company shall pay to the Executive at the 
time specified in Section 12 below, an additional amount (the "Gross-Up 
Payment") such that the net amount retained by the Executive, after deduction 
of any Excise Tax on the Payments and any federal (and state and local) 
income tax, employment tax


                                       7

<PAGE>

and Excise Tax upon the payment provided for by this paragraph, shall be 
equal to the amount of the Payments.  For purposes of determining whether any 
of the Payments will be subject to the Excise Tax and the amount of such 
Excise Tax the following will apply: 

      (a) any payments or benefits received or to be received by the 
Executive in connection with a Reorganization Event of the Company or his 
termination of employment (whether pursuant to the terms of this Agreement or 
any other plan, arrangement or agreement with the Company, any person whose 
actions result in a Reorganization Event of the Company or any person 
affiliated with the Company or such person) shall be treated as "parachute 
payments" within the meaning of section 280G(b)(2) of the Code, and all 
"excess parachute payments" within the meaning of section 280G(b)(1) shall be 
treated as subject to the Excise Tax, unless in the opinion of tax counsel 
selected by the Company's independent auditors and acceptable to the 
Executive such other payments or benefits (in whole or in part) do not 
constitute parachute payments, or such excess parachute payments (in whole or 
in part) represent reasonable compensation for services actually rendered 
within the meaning of section 280G(b)(4) of the Code in excess of the base 
amount within the meaning of section 280G(b)(3) of the Code, or are otherwise 
not subject to the Excise Tax; and

      (b) the value of any non-cash benefits or any deferred payment or 
benefit shall be determined by the Company's independent auditors in 
accordance with proposed, temporary or final regulations under Sections 
280G(d)(3) and (4) of the Code or, in the absence of such regulations, in 
accordance with the principles of Section 280G(d)(3) and (4) of the Code.  
For purposes of determining the amount of the Gross-Up Payment, the Executive 
shall be deemed to pay federal income taxes at the highest marginal rate of 
federal income taxation in the calendar year in which the Gross-Up Payment is 
to be made and state and local income taxes at the highest marginal rate of 
taxation in the state and locality of the Executive's residence on the Date 
of Termination, net of the maximum reduction in federal income taxes which 
could be obtained from deduction of such state and local taxes.  In the event 
that the amount of Excise Tax attributable to Payments is subsequently 
determined to be less than the amount taken into account hereunder at the 
time of termination of the Executive's employment, he shall repay to the 
Company at the time that the amount of such reduction in Excise Tax is 
finally determined the portion of the Gross-Up Payment attributable to such 
reduction (plus the portion of the Gross-Up Payment attributable to the 
Excise Tax, employment tax and federal (and state and local) income tax 
imposed on the Gross-Up Payment being repaid by the Executive if such 
repayment results in a reduction in Excise Tax and/or a federal (and state 
and local) income tax deduction) plus interest on the amount of such 
repayment at the rate provided in section 1274(b)(2) (B) of the Code.  In the 
event that the Excise Tax attributable to Payments is determined to exceed 
the amount taken into account hereunder at the time of the termination of the 
Executive's employment (including by reason of any payment the existence or 
amount of which cannot be determined at the time of the Gross-Up Payment), 
the Company shall make an additional gross-up payment in respect of such 
excess (plus any interest payable with respect to such excess) at the time 
that the amount of such excess is finally determined.

12. Method of Payment.


                                       8

<PAGE>

      The payments provided for in Sections 5 and 11 hereof shall be made in 
a cash lump-sum payment, net of any required tax withholding, upon the later 
of (i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 13 hereof.  Any payment required 
under Sections 5 and 11 or any other provision of this Agreement that is not 
made in a timely manner shall bear interest at a rate equal to one-hundred 
twenty (120) percent of the monthly compounded applicable federal rate, as in 
effect under Section 1274(d) of the Code for the month in which the payment 
is required to be made.

13.   Release of Claims.

      As conditions of Executive's entitlement to the severance payments and
benefits provided by this Agreement, the Executive shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit C (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).

14.   Executive Covenants.

      14.01  General.  The Executive and the Company understand and agree that
the purpose of the provisions of this Section 14 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Executive's right to work, earn a
living, or acquire and possess property from the fruits of his labor.  The
Executive hereby acknowledges that the post-employment restrictions set forth in
this Section 14 are reasonable and that they do not, and will not, unduly impair
his ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the limitations of reasonableness imposed by law
upon restrictions set forth herein, the Executive shall be subject to the
restrictions set forth in this Section 14.

      14.02  Definitions.  The following capitalized terms used in this 
Section 14 shall have the meanings assigned to them below, which definitions 
shall apply to both the singular and the plural forms of such terms:

"Confidential Information" means any confidential or proprietary information 
possessed by the Company without limitation, any confidential "know-how", 
customer lists, details of client or consultant contracts, current and 
anticipated customer requirements, pricing policies, price lists, market 
studies, business plans, operational methods, marketing plans or strategies, 
product development techniques or plans, computer software programs 
(including object code and source code), data and documentation, data base 
technologies, systems, structures and architectures, inventions and ideas, 
past, current and planned research and development, compilations, devices, 
methods, techniques, processes, financial information and data, business 
acquisition plans, new personnel acquisition plans and any other information 
that would constitute a trade secret under the common law or statutory law of 
the State of Delaware.


                                       9

<PAGE>

"Determination Date" means the date of termination of the Executive's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Executive.

"Person" means any individual or any corporation, partnership, joint venture, 
association or other entity or enterprise.

"Principal or Representative" means a principal, owner, partner, shareholder, 
joint venturer, member, trustee, director, officer, manager, employee, agent, 
representative or consultant.

"Protected Employees" means employees of the Company or its affiliated 
companies who were employed by the Company or its affiliated companies at any 
time within six (6) months prior to the Determination Date.

"Restricted Period" means the period of the Executive's employment by the 
Company plus a period extending two (2) years from the date of termination of 
employment.

"Restrictive Covenants" means the restrictive covenants contained in Section 
14.03 hereof.

      14.03  Restrictive Covenants.

(a)  Restriction on Disclosure and Use of Confidential Information. The 
Executive understands and agrees that the Confidential Information 
constitutes a valuable asset of the Company and its affiliated entities, and 
may not be converted to the Executive's own use.  Accordingly, the Executive 
hereby agrees that the Executive shall not, directly or indirectly, at any 
time during the Restricted Period reveal, divulge or disclose to any Person 
not expressly authorized by the Company any Confidential Information, and the 
Executive shall not, directly or indirectly, at any time during the 
Restricted Period use or make use of any Confidential Information in 
connection with any business activity other than that of the Company.  The 
parties acknowledge and agree that this Agreement is not intended to, and 
does not, alter either the Company's rights or the Executive's obligations 
under any state or federal statutory or common law regarding trade secrets 
and unfair trade practices.

(b)  Nonsolicitation of Protected Employees.  The Executive understands and 
agrees that the relationship between the Company and each of its Protected 
Employees constitutes a valuable asset of the Company and may not be 
converted to the Executive's own use.  Accordingly, the Executive hereby 
agrees that during the Restricted Period the Executive shall not directly or 
indirectly on the Executive's own behalf or as a Principal or Representative 
of any Person solicit any Protected Employee to terminate his or her 
employment with the Company.

(c)  Noninterference with Company Opportunities.  The Executive understands 
and agrees that all hotel development opportunities with which he is involved 
during his employment with the Company constitute valuable assets of the 
Company and its affiliated entities, and may not be converted to the 
Executive's own use.  Accordingly, the Executive hereby agrees that during 
the


                                      10

<PAGE>

Restricted Period the Executive shall not directly or indirectly on the 
Executive's own behalf or as a Principal or Representative of any Person, 
interfere with, solicit, pursue, or in any way make use of any such hotel 
development opportunities.

      14.04  Exceptions from Disclosure Restrictions.  Anything herein to the 
contrary notwithstanding, the Executive shall not be restricted from 
disclosing or using Confidential Information that: (a) is or becomes 
generally available to the public other than as a result of an unauthorized 
disclosure by the Executive or his agent; (b) becomes available to the 
Executive in a manner that is not in contravention of applicable law from a 
source (other than the Company or its affiliated entities or one of its or 
their officers, employees, agents or representative) that is not bound by a 
confidential relationship with the Company or its affiliated entities or by a 
confidentiality or other similar agreement; (c) was known to the Executive on 
a non-confidential basis and not in contravention of applicable law or a 
confidentiality or other similar agreement before its disclosure to the 
Executive by the Company or its affiliated entities or one of its or their 
officers, employees, agents or representatives; or (d) is required to be 
disclosed by law, court order or other legal process; PROVIDED, HOWEVER, that 
in the event disclosure is required by law, court order or legal process, the 
Executive shall provide the Company with prompt notice of such requirement so 
that the Company may seek an appropriate protective order prior to any such 
required disclosure by the Executive.

      14.05  Enforcement of the Restrictive Covenants.

(a)  Rights and Remedies upon Breach.  In the event the Executive breaches, 
or threatens to commit a breach of, any of the provisions of the Restrictive 
Covenants, the Company shall have the right and remedy to enjoin, 
preliminarily and permanently, the Executive from violating or threatening to 
violate the Restrictive Covenants and to have the Restrictive Covenants 
specifically enforced by any court of competent jurisdiction, it being agreed 
that any breach or threatened breach of the Restrictive Covenants would cause 
irreparable injury to the Company and that money damages would not provide an 
adequate remedy to the Company.  The rights referred to in the preceding 
sentence shall be independent of any others and severally enforceable, and 
shall be in addition to, and not in lieu of, any other rights and remedies 
available to the Company at law or in equity.

(b)  Severability of Covenants.  The Executive acknowledges and agrees that 
the Restrictive Covenants are reasonable and valid in time and space and in 
all other respects.  If any court determines that any Restrictive Covenants, 
or any part thereof, is invalid or unenforceable, the remainder of the 
Restrictive Covenants shall not thereby be affected and shall be given full 
effect, without regard to the invalid portions. 

15.   Cooperation in Future Matters.

      The Executive hereby agrees that, for a period of three (3) years 
following his Date of Termination, he shall cooperate with the Company's 
reasonable requests relating to matters that pertain to the Executive's 
employment by the Company, including, without limitation, providing 
information or limited consultation as to such matters, participating in 
legal proceedings,


                                      11

<PAGE>

investigations or audits on behalf of the Company, or otherwise making 
himself reasonably available to the Company for other related purposes.  Any 
such cooperation shall be performed at times scheduled taking into 
consideration the Executive's other commitments, and the Executive shall be 
compensated at a reasonable hourly or PER DIEM rate to be agreed by the 
parties to the extent such cooperation is required on more than an occasional 
and limited basis.  The Executive shall not be required to perform such 
cooperation to the extent it conflicts with any requirements of exclusivity 
of service for another employer or otherwise, nor in any manner that in the 
good faith belief of the Executive would conflict with his rights under or 
ability to enforce this Agreement.

16.   Indemnification.

      (a)  Following the Date of Termination, the Company agrees that it 
will, indemnify and hold harmless the Executive, against any costs or 
expenses (including attorneys' fees), judgments, fines, losses, claims, 
damages, liabilities or amounts paid in settlement incurred in connection 
with any claim, action, suit, proceeding or investigation, whether civil, 
criminal, administrative or investigative, arising out of or pertaining to 
matters existing or occurring at or prior to the Date of Termination, whether 
asserted or claimed prior to, at or after the Date of Termination, to the 
fullest extent that the Company would have been permitted under Delaware law 
and its certificate of incorporation or bylaws in effect on the date hereof 
to indemnify the Executive (and the Company shall also advance expenses as 
incurred to the fullest extent permitted under applicable law, provided the 
Executive provides an undertaking to repay advances if it is ultimately 
determined that the Executive is not entitled to indemnification).

      (b)  For a period of six years after the  Date of Termination, the 
Company shall maintain (to the extent available in the market) in effect a 
director's and officer's liability insurance policy with coverage in amount 
and scope at least as favorable as the Company's existing coverage on the 
Date of Termination; provided that in no event shall the Company be required 
to expend in the aggregate in excess of 200% of the annual premium paid by 
the Company for such coverage as of the Date of Termination; and if such 
premium would at any time exceed 200% of the such amount, then the Company 
shall maintain insurance policies which provide the maximum and best coverage 
available at an annual premium equal to 200% of such amount.

      (c)  The provisions of this Section 16 are intended to be an addition 
to the rights otherwise available to the Executive by law, charter, statute, 
bylaw or separate agreement between the Company and the Executive. The 
Company shall continue to honor any indemnification agreement between the 
Company and the Executive entered into prior to the Date of Termination in 
accordance with the terms thereof.

17.   Binding Arbitration and Legal Fees.

      17.01  Any dispute or controversy arising under or in connection with 
this Agreement shall be settled exclusively by arbitration in accordance with 
the rules of the American Arbitration Association then in effect.  Judgment 
may be entered on the arbitrator's award in any court having jurisdiction. 


                                      12

<PAGE>

      17.02  The Company shall pay all reasonable legal fees and expenses 
incurred by the Executive in connection with any arbitration (or other 
proceeding whether or not instituted by the Company or the Executive), 
relating to the interpretation or enforcement of any provision of this 
Agreement (including any action seeking to obtain or enforce any right or 
benefit provided by this Agreement) or in connection with any tax audit or 
proceeding relating to the application of Section 4999 of the Code to any 
payment or benefit provided by the Company.

18.   Assumption of Agreement on Merger, Consolidation or Sale of Assets.

      The Company agrees that, until the termination of this Agreement as 
above provided, it will not enter into any merger or consolidation with 
another company in which the Company is not the surviving company, or sell or 
dispose of all or substantially all of its assets, unless the company which 
is to survive such merger or consolidation or the prospective purchaser of 
such assets first makes a written agreement with the Executive either (1) 
assuming the Company's financial obligations to the Executive under this 
Agreement, or (2) making such other provision for the Executive as is 
satisfactory to the Executive and approved by him in writing in lieu of 
assuming the Company's financial obligations to him under this Agreement. 

19.   Assurances on Liquidation.

      The Company agrees that, until the termination of this Agreement as 
above provided, it will not voluntarily liquidate or dissolve without first 
making a full settlement, or, at the discretion of the Executive, a written 
agreement with the Executive satisfactory to and approved by him in writing, 
in fulfillment of or in lieu of its obligations to him under this Agreement.

20.   Amendments.

      This Agreement may not be amended or modified orally, and no provision 
hereof may be waived, except in a writing signed by the parties hereto.

21.   Assignment.

      21.01  Except as otherwise provided in paragraph 21.02, this Agreement 
cannot be assigned by either party hereto except with the written consent of 
the other.  Any assignment of this Agreement by either party hereto shall not 
relieve such party of its or his obligations hereunder.

      21.02  The Company may elect to perform any or all of its obligations 
under this Agreement through a wholly-owned subsidiary or other subsidiary, 
and if the Company so elects, Executive will be an employee of such 
wholly-owned subsidiary, or such other subsidiary.  Notwithstanding any such 
election, the Company's obligations to Executive under this Agreement will 
continue in full force and effect as obligations of the Company, and the 
Company shall retain primary liability for their performance.


                                      13

<PAGE>

22.   Binding Effect.

      This Agreement shall be binding upon and inure to the benefit of the 
personal representatives and successors in interest of the Company.

23. Choice of Law.

      This Agreement shall be governed by the law of the State of Tennessee 
as to all matters, including, but not limited to, matters of validity, 
construction, effect and performance.

24.   Severability of Provisions.

      In case any one or more of the provisions contained in this Agreement 
shall be invalid, illegal or unenforceable in any respect, the validity, 
legality and enforceability of the remaining provisions contained herein 
shall not in any way be affected or impaired thereby, and this Agreement 
shall be interpreted as if such invalid, illegal or unenforceable provision 
were not contained herein.


                                      14

<PAGE>

IN WITNESS WHEREOF, the Executive has hereunto set his hand and the Company 
has caused this Agreement to be executed in its name and on its behalf and 
its corporate seal to be hereunto affixed and attested by its corporate 
officers thereunto duly authorized.

                               EXECUTIVE

     ___________________________________
     William L. Perocchi


(Corporate Seal)   PARENT HOLDING CORP.


      By:
ATTEST:

      Secretary


                                      15


<PAGE>

                           MERGER SEVERANCE AGREEMENT


    THIS MERGER SEVERANCE AGREEMENT (this "Agreement") is made as of this 
__th day of September, 1997, between PROMUS HOTEL CORPORATION (the "Company") 
and Raymond E. Schultz (the "Executive").

                                    RECITALS

    WHEREAS, the Company considers it essential to the best interest of its 
stockholders to foster the continuous employment of key management personnel, 
and believes that the possibility of a reorganization event of the Company 
and the uncertainty and questions which it may raise among management may 
result in the departure or distraction of management personnel to the 
detriment of the Company and its stockholders; and

    WHEREAS, the Board of Directors has determined that appropriate steps 
should be taken to reinforce and encourage the continued attention and 
dedication of members of the Company's management, including the Executive, 
to their assigned duties without distraction in the face of potentially 
disturbing circumstances arising from the possibility of a reorganization 
event of the Company;

    NOW, THEREFORE, in consideration of the mutual premises set forth below 
and for other good and valuable consideration, in order to induce the 
Executive to remain in the employ of the Company, the Company agrees that the 
Executive shall receive the severance benefits set forth in this agreement 
(this "Agreement") in the event his employment with the Company terminates 
subsequent to a "Reorganization Event" of the Company under the circumstances 
described below.

                                   AGREEMENT

    1.   DEFINITIONS

    The following terms used in this Agreement shall have the meanings given 
below:

         (a)  "ANNUAL BASE SALARY" shall mean the Executive's gross annual 
salary before any deductions, exclusions or any deferrals or contributions 
under any Company plan or program, but excluding bonuses, incentive 
compensation, employee benefits or any other non-salary form of compensation 
(determined without regard to any reduction in Annual Base Salary that occurs 
after the consummation of a Reorganization Event).

         (b)  "BOARD" shall mean the Board of Directors of the Company.

         (c)  "BONUS AMOUNT" shall mean the greater of (i) the dollar amount 
of the annual bonus that would be payable to the Executive under the 
Company's annual bonus plan applicable to the Executive, assuming payment at 
the target level for the Executive's then current salary grade level for the 
then-current full fiscal year (determined without regard to any reduction in 
target bonus percentage that results in "Good Reason" termination), or (ii) 
the dollar amount of

                                      1

<PAGE>

the bonus paid or payable to the Executive under the Company's annual bonus 
plan for the most recently completed fiscal year under such plan. 
Notwithstanding the foregoing, if the Executive is a participant in the 
Company's Development Bonus Plan (or any successor plan), the "Bonus Amount" 
shall mean the greater of (i) the dollar amount of the annual bonus that 
would be payable at the Executive's then current grade level under the 
Company's Annual Management Bonus Plan (as opposed to the Development Bonus 
Plan), or (ii) the dollar amount of the bonus actually paid to the Executive 
during the most recently completed fiscal year under the Company's 
Development Bonus Plan, subject to a maximum amount equal to the target bonus 
under the Company's Annual Management Bonus Plan at the Executive's salary 
grade level for such plan year.

         (d)  "CODE" shall mean the Internal Revenue Code of 1986, as amended.

         (e)  "COMPANY" shall mean Promus Hotel Corporation, or any successor 
corporation that assumes this Agreement under Section 14 hereof or otherwise 
becomes bound by this Agreement.

         (f)  "COVERED TERMINATION" shall have the meaning given in Section 3 
hereof. 

         (g)  "DATE OF TERMINATION" shall mean the effective date of the 
Executive's Covered Termination pursuant to Section 3 hereof.

         (h)  "DISABILITY" shall mean the absence of the Executive from the 
full-time performance of his duties with the Company for six consecutive 
months as a result of incapacity due to physical or mental illness, provided 
the Company has given 30-day advance written notice to the Executive and he 
has not returned to the full-time performance of his duties.

         (i)  "REORGANIZATION EVENT" shall mean the occurrence of any of the 
following after the date hereof:

              (i)   any "person" (as such term is used in Section 13(d) and 
14(d) of the Securities Exchange Act of 1934, as amended (the "Exchange 
Act"), other than an employee benefit plan of the Company, or a trustee or 
other fiduciary holding securities under an employee benefit plan of the 
Company, becomes a "beneficial owner" (as defined in Rule 13d-3 under the 
Exchange Act), directly or indirectly, of 25% or more of the Company's then 
outstanding voting securities carrying the right to vote in elections of 
persons to the Board, regardless of comparative voting power of such voting 
securities, and regardless of whether or not the Board shall have approved 
such Reorganization Event; or

              (ii)  during any period of two (2) consecutive years (not 
including any period prior to the execution of this Agreement), individuals 
who at the beginning of such period constitute the Board (the "Incumbent 
Board") and any other new director (other than a director designated by a 
person who shall have entered into an agreement with the Company to effect a 
transaction described in clauses (i) or (iii) of this subsection) whose 
election by the Board or nomination for election by the Company's 
stockholders was approved by a vote of at least two-thirds (2/3) of the 
directors then still in office who either were directors at the beginning of 
the

                                      2

<PAGE>

period or whose election or nomination for election was previously so 
approved (each such new director being considered a member of the "Incumbent 
Board"), cease for any reason to constitute a majority thereof; or

              (iii) the holders of securities of the Company entitled to vote 
thereon approve of the following:

              (A)   a merger or consolidation of the Company with any other 
corporation regardless of which entity is the surviving company, other than a 
merger or consolidation which would result in the voting securities of the 
Company carrying the right to vote in elections of persons to the board 
outstanding immediately prior thereto continuing to represent (either by 
remaining outstanding or by being converted into voting securities of the 
surviving entity) at least 66 2/3% of the Company's then-outstanding voting 
securities carrying the right to vote in elections of persons to the board or 
such securities of such surviving entity outstanding immediately after such 
merger or consolidation, or

              (B)   a plan of complete liquidation of the Company or an 
agreement for the sale or disposition by the Company of all or substantially 
all of the Company's assets.

    Notwithstanding the definition of "Reorganization Event" of the Company 
as set forth in this Agreement, the Board shall have full and final 
authority, which shall be exercised in its discretion, to determine 
conclusively whether a Reorganization Event of the Company has occurred, and 
the date of the occurrence of such Reorganization Event and any incidental 
matters relating thereto, with respect to a transaction or series of 
transactions which have resulted or will result in a substantial portion of 
the assets or business of the Company (as determined immediately prior to the 
transaction or series of transactions by the Board in its sole discretion 
which determination shall be final and conclusive) being held by a 
corporation at least 66 2/3% of whose voting securities are held, immediately 
following such transaction or series of transactions, by holders of the 
voting securities of the Company (determined immediately prior to such 
transaction or series of transactions).  The Board may exercise such 
discretionary authority without regard to whether one or more of the 
transactions in such series of transactions would otherwise constitute a 
Reorganization Event of the Company under the definition set forth in this 
Agreement.  It is hereby understood and agreed that the consummation of the 
business combination ("the Merger") contemplated by the Agreement and Plan of 
Merger dated as of September 1, 1997 among Doubletree Corporation, the 
Company and Parent Holding Corp. shall not constitute a Reorganization Event 
for purposes of this Agreement.

    2.   TERM OF AGREEMENT

    This Agreement shall commence on the date first written above and shall
continue in effect though December 31, 1998; provided, however, that commencing
on January 1, 1999 and each January 1 thereafter, the term of this Agreement
shall automatically be extended for one additional year unless, not later than
September 30 of the preceding year, the Company shall have given notice that it
does not wish to extend this Agreement; and provided further, that the Board may
terminate this agreement at any time prior to the consummation of the business
combination contemplated by the above referenced Agreement and Plan of Merger
(the

                                      3

<PAGE>

"Merger") if the Board finds that the consummation of the Merger is no longer 
viable or in the best interest of the Company.  Notwithstanding the 
foregoing, no notice of non-renewal given by the Board shall be effective 
with respect to a particular Reorganization Event if given after the 
occurrence of the following events: (i) the Company enters into an agreement 
or letter of intent, the consummation of which would result in such 
Reorganization Event, (ii) any "person" makes a public announcement of its 
intention to take or consider taking actions that would result in such 
Reorganization Event, or (iii) any "person" (as defined above) initiates a 
tender offer which, if consummated, would result in such Reorganization Event 
(it being understood that this sentence shall not apply with respect to any 
unrelated Reorganization Event). If a Reorganization Event of the Company 
shall have occurred during the original or extended term of this Agreement, 
the term of this Agreement shall continue in force and effect until the 
satisfaction of all of the Company's obligations to the Executive as provided 
hereunder.

    3.   COVERED TERMINATION

         (a)  GENERAL.  The Executive shall be treated as having incurred a 
"Covered Termination" hereunder if the Company terminates his employment 
other than for cause, or if the Executive gives notice of voluntary 
termination, within the "Coverage Period" defined below.  The Executive shall 
not be treated as having incurred a Covered Termination if his employment is 
terminated as a result of death or Disability.  For purposes hereof, the 
Coverage  Period shall be a period of two (2) years following the 
consummation of a Reorganization Event.

         (b)  TERMINATION FOR CAUSE. Termination by the Company of the 
Executive's employment for "Cause" shall mean termination as a result of: 

              (i)  the Executive engaging in willful gross neglect of his 
duties with the Company, or the Executive's fraud or dishonesty in connection 
with his performance of duties to the Company, in either case which has a 
materially detrimental effect on the business or operations of the Company; 
or 

              (ii) the Executive's conviction by a court of competent 
jurisdiction of any crime (or upon entering a plea of guilty or nolo 
contendere to a charge of any crime) constituting a felony.

    The Date of Termination for a termination for Cause shall be the date 
specified by the Company.

                                      4

<PAGE>


         (c)  TERMINATION BY EXECUTIVE.  The Executive may give notice of his 
intent to terminate his employment for any reason during the Coverage Period 
and it shall be treated as a Covered Termination hereunder.  The Executive 
shall provide the Company with 30-days advance written notice, and the Date 
of Termination shall be the expiration of such 30-day period.

    4.   SEVERANCE PAYMENT  

    The amount of the severance payment to be paid to the Executive upon 
Covered Termination shall be the amount determined by multiplying 3.00 times 
the sum of:

         (a)  the Executive's Annual Base Salary as in effect immediately 
prior to the Date of Termination; plus, 

         (b)  the Executive's Bonus Amount applicable for the fiscal year in 
which the Date of Termination occurs; plus, 

         (c)  a benefit allowance of 25% of the Executive's Annual Base 
Salary as in effect immediately prior to the Date of Termination.

    5.   OTHER SEVERANCE BENEFITS

    In addition to the severance payment provided under Section 4 hereof, the 
Executive shall be entitled to the following benefits and other rights in the 
event of the his Covered Termination:

         (a)  ACCRUED RIGHTS.  The Executive shall be entitled to the 
following payments and benefits in respect of accrued compensation rights 
upon a Covered Termination, in addition to other rights provided under this 
Agreement: 

              (i)   payment of any accrued but unpaid Annual Base Salary 
through the Date of Termination and payment of any annual bonus (for any 
completed fiscal year) that is awarded subsequent to the Date of Termination 
by the Company in its sole discretion under the terms of the annual bonus 
plan then in effect. 

              (ii)  payment of a pro-rata portion of the Bonus Amount for the 
fiscal year of the Company in which the Covered Termination occurs, based on 
the number of days of such year prior to the Date of Termination;

              (iii) all benefits and rights accrued under the employee 
benefit plans, fringe benefits programs and payroll practices of the Company 
in accordance with their terms (including, without limitations, employee 
pension, employee welfare, incentive bonus, stock incentive plans, and any 
accrued vacation or sick pay time); and

              (iv)  a payment equal to the forfeited portion of the 
Executive's account balance under the Company's tax qualified deferred 
compensation plan as a result of failure to satisfy vesting requirements due 
to a Covered Termination.

                                      5

<PAGE>

         (b)  OUTPLACEMENT SERVICES. Upon the occurrence of a Covered 
Termination, the Executive shall be provided, at the Company's sole expense, 
with professional outplacement services consistent with the Executive's 
duties or profession and of a type and level customary for persons in his 
position, as selected by the Company, subject to reasonable limitations 
established by the Company on a uniform basis for similarly situated 
executives as to duration and dollar amounts.

         (c)  EMPLOYMENT AGREEMENT. In the event that the Executive's Covered 
Termination also constitutes a termination without "cause" or for "good 
reason" under the employment agreement between Executive and Promus Hotel 
Corporation (f.k.a. Parent Holding Corp.) dated October ___, 1997 (the 
"Employment Agreement"), (i) all outstanding awards of stock options and 
restricted stock that have been granted to the Executive shall continue to 
become vested and exercisable following the Date of Termination at the same 
times and on the same basis as if the Executive had remained employed by the 
Company and, in the case of stock options, shall remain exercisable following 
the vesting thereof until the expiration of the original full term and (ii) 
the Executive shall receive the payments and benefits under this agreement in 
lieu of the payments and benefits under the Employment Agreement, except that 
the Executive shall also be entitled to the group medical insurance benefits, 
vesting of equity rights, office and secretary, and EDCP rights as and to the 
extent provided for under the Employment Agreement (as described in Section 
10 of the Employment Agreement).

    6.   EXCISE TAX REIMBURSEMENT

    In the event it shall be determined that any payment or distribution by 
the Company or any other person or entity to or for the Executive's benefit, 
whether paid or payable or distributed or distributable pursuant to the terms 
of this Agreement or otherwise, or whether prior to or following the Covered 
Termination in connection with, or arising out of, the Executive's employment 
with the Company or a Reorganization Event of the Company (a "Payment") will 
be subject to the tax (the "Excise Tax") imposed by section 4999 of the Code, 
the Company shall pay to the Executive at the time specified in Section 7 
hereof, an additional amount (the "Gross-Up Payment") such that the net 
amount retained by the Executive, after deduction of any Excise Tax on the 
Payments and any federal (and state and local) income tax, employment tax, 
and Excise Tax upon the payment provided for by this paragraph, shall be 
equal to the amount of the Payments.  For purposes of determining whether any 
of the Payments will be subject to the Excise Tax and the amount of such 
Excise Tax the following will apply: 

         (a)  any payments or benefits received or to be received by the 
Executive in connection with a Reorganization Event of the Company or his 
termination of employment (whether pursuant to the terms of this Agreement or 
any other plan, arrangement or agreement with the Company, any person whose 
actions result in a Reorganization Event of the Company or any person 
affiliated with the Company or such person) shall be treated as "parachute 
payments" within the meaning of section 280G(b)(2) of the Code, and all 
"excess parachute payments" within the meaning of section 280G(b)(1) shall be 
treated as subject to the Excise Tax, unless in the opinion of tax counsel 
selected by the Company's independent auditors and acceptable to the 
Executive such other payments or benefits (in whole or in part) do not 
constitute parachute payments, or such excess parachute payments (in whole or 
in part) represent reasonable compensation for services actually rendered 
within the meaning of section 280G(b)(4) of the

                                      6

<PAGE>

Code in excess of the base amount within the meaning of section 280G(b)(3) of 
the Code, or are otherwise not subject to the Excise Tax; and

         (b)  the value of any non-cash benefits or any deferred payment or 
benefit shall be determined by the Company's independent auditors in 
accordance with proposed, temporary or final regulations under Sections 
280G(d)(3) and (4) of the Code or, in the absence of such regulations, in 
accordance with the principles of Section 280G(d)(3) and (4) of the Code.  
For purposes of determining the amount of the Gross-Up Payment, the Executive 
shall be deemed to pay federal income taxes at the highest marginal rate of 
federal income taxation in the calendar year in which the Gross-Up Payment is 
to be made and state and local income taxes at the highest marginal rate of 
taxation in the state and locality of the Executive's residence on the Date 
of Termination, net of the maximum reduction in federal income taxes which 
could be obtained from deduction of such state and local taxes.  In the event 
that the amount of Excise Tax attributable to Payments is subsequently 
determined to be less than the amount taken into account hereunder at the 
time of termination of the Executive's employment, he shall repay to the 
Company at the time that the amount of such reduction in Excise Tax is 
finally determined the portion of the Gross-Up Payment attributable to such 
reduction (plus the portion of the Gross-Up Payment attributable to the 
Excise Tax, employment tax and federal (and state and local) income tax 
imposed on the Gross-Up Payment being repaid by the Executive if such 
repayment results in a reduction in Excise Tax and/or a federal (and state 
and local) income tax deduction) plus interest on the amount of such 
repayment at the rate provided in section 1274(b)(2) (B) of the Code.  In the 
event that the Excise Tax attributable to Payments is determined to exceed 
the amount taken into account hereunder at the time of the termination of the 
Executive's employment (including by reason of any payment the existence or 
amount of which cannot be determined at the time of the Gross-Up Payment), 
the Company shall make an additional gross-up payment in respect of such 
excess (plus any interest payable with respect to such excess) at the time 
that the amount of such excess is finally determined.  

    7.   METHOD OF PAYMENT

    The payments provided for in Sections 4, 5 and 6 hereof shall be made in 
a cash lump-sum payment, net of any required tax withholding, upon the later 
of (i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 10 hereof; provided, however, that 
if the amounts of such payments cannot be finally determined on or before 
such day, the Company shall pay on such day an estimate, as determined in 
good faith by the Company, of the minimum amount of such payments.  Any 
payment required under Sections 4, 5 or 6 or any other provision of this 
Agreement that is not made in a timely manner shall bear interest at a rate 
equal to one-hundred twenty (120) percent of the monthly compounded 
applicable federal rate, as in effect under Section 1274(d) of the Code for 
the month in which the payment is required to be made.  In the event that the 
amount of the estimated payments exceeds the amount subsequently determined 
to have been due, such excess shall constitute a loan by the Company payable 
on the fifth day after demand by the Company with interest at the rate 
provided under Section 1274(d) of the Code until paid.

                                      7

<PAGE>

    8.   RELOCATION EXPENSES

    The Executive shall be entitled to a reimbursement payment from the 
Company equal to his reasonable moving expenses (determined in accordance 
with Company's relocation policy) incurred in connection with the Executive's 
written acceptance of a position with the Company requiring his relocation to 
a metropolitan area, other than the metropolitan area where his office is 
located at the time of the Reorganization Event of the Company.  The Company 
shall pay the Executive an additional payment in an amount such that the net 
amount retained by the Executive after deduction for any federal, state, and 
local income tax, employment tax and any excise tax on the reimbursement 
payment shall equal the amount of the reimbursement payment.  

    9.   NO MITIGATION OR OFFSET

    The Executive shall not be required to mitigate the amount of any 
severance payment or benefit provided under this Agreement by seeking other 
employment or otherwise.  The amount of any payment or benefit to which the 
Executive becomes entitled hereunder shall not be reduced by any compensation 
earned by the Executive as the result of employment by another employer, by 
retirement benefits, nor by offset against any amount claimed to be owed to 
the Company by reason of a claimed breach by the Executive of his obligations 
under Sections 11 or 12 hereof or otherwise (except that offset shall apply 
as specifically provided in Section 21(a) hereof concerning other severance 
payments).  

    10.  RELEASE OF CLAIMS

    As conditions of Executive's entitlement to the severance payments and 
benefits provided by this Agreement, the Executive shall be required to 
execute and honor the terms of a waiver and release of claims against the 
Company substantially in the form attached hereto as Exhibit A (as may be 
modified consistent with the purposes of such waiver and release to reflect 
changes in law following the date hereof).  

    11.  RESTRICTION ON CONDUCT OF EXECUTIVE

         (a)  GENERAL.  The Executive and the Company understand and agree that
the purpose of the provisions of this Section 11 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Executive's right to work, earn a
living, or acquire and possess property from the fruits of his labor.  The
Executive hereby acknowledges that the post-employment restrictions set forth in
this Section 11 are reasonable and that they do not, and will not, unduly impair
his ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the limitations of reasonableness imposed by law
upon restrictions set forth herein, the Executive shall be subject to the
restrictions set forth in this Section 11.

         (b)  DEFINITIONS.  The following capitalized terms used in this
Section 11 shall have the meanings assigned to them below, which definitions
shall apply to both the singular and the plural forms of such terms:

                                      8

<PAGE>

    "CONFIDENTIAL INFORMATION" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.

    "DETERMINATION DATE" means the date of termination of the Executive's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Executive.

    "PERSON" means any individual or any corporation, partnership, joint 
venture, association or other entity or enterprise.

    "PRINCIPAL OR REPRESENTATIVE" means a principal, owner, partner, 
shareholder, joint venturer, member, trustee, director, officer, manager, 
employee, agent, representative or consultant.

    "PROTECTED EMPLOYEES" means employees of the Company or its affiliated 
companies who were employed by the Company or its affiliated companies at any 
time within six (6) months prior to the Determination Date.

    "RESTRICTED PERIOD" means the period of the Executive's employment with 
the Company plus a period extending two (2) years from the date of 
termination of employment.

    "RESTRICTIVE COVENANTS" means the restrictive covenants contained in 
Section 11(c) hereof.

         (c)  RESTRICTIVE COVENANTS.

              (i)  RESTRICTION ON DISCLOSURE AND USE OF CONFIDENTIAL 
INFORMATION.  The Executive understands and agrees that the Confidential 
Information constitutes a valuable asset of the Company and its affiliated 
entities, and may not be converted to the Executive's own use.  Accordingly, 
the Executive hereby agrees that the Executive shall not, directly or 
indirectly, at any time during the Restricted Period reveal, divulge or 
disclose to any Person not expressly authorized by the Company any 
Confidential Information, and the Executive shall not, directly or 
indirectly, at any time during the Restricted Period use or make use of any 
Confidential Information in connection with any business activity other than 
that of the Company.  The parties acknowledge and agree that this Agreement 
is not intended to, and does not, alter either the Company's rights or the 
Executive's obligations under any state or federal statutory or common law 
regarding trade secrets and unfair trade practices.

                                      9

<PAGE>

              (ii) NONSOLICITATION OF PROTECTED EMPLOYEES.  The Executive 
understands and agrees that the relationship between the Company and each of 
its Protected Employees constitutes a valuable asset of the Company and may 
not be converted to the Executive's own use.  Accordingly, the Executive 
hereby agrees that during the Restricted Period the Executive shall not 
directly or indirectly on the Executive's own behalf or as a Principal or 
Representative of any Person solicit any Protected Employee to terminate his 
or her employment with the Company.

              (iii)     NONINTERFERENCE WITH COMPANY OPPORTUNITIES.  The 
Executive understands and agrees that all hotel development opportunities 
with which he is involved during his employment with the Company constitute 
valuable assets of the Company and its affiliated entities, and may not be 
converted to Executive's own use.  Accordingly, the Executive hereby agrees 
that during the Restricted Period the Executive shall not directly or 
indirectly on the Executive's own behalf or as a Principal or Representative 
of any Person, interfere with, solicit, pursue, or in any way make use of any 
such hotel development opportunities.

         (d)  EXCEPTIONS FROM DISCLOSURE RESTRICTIONS.  Anything herein to 
the contrary notwithstanding, the Executive shall not be restricted from 
disclosing or using Confidential Information that: (i) is or becomes 
generally available to the public other than as a result of an unauthorized 
disclosure by the Executive or his agent; (ii) becomes available to the 
Executive in a manner that is not in contravention of applicable law from a 
source (other than the Company or its affiliated entities or one of its or 
their officers, employees, agents or representative) that is not bound by a 
confidential relationship with the Company or its affiliated entities or by a 
confidentiality or other similar agreement; (iii) was known to the Executive 
on a non-confidential basis and not in contravention of applicable law or a 
confidentiality or other similar agreement before its disclosure to the 
Executive by the Company or its affiliated entities or one of its or their 
officers, employees, agents or representatives; or (iv) is required to be 
disclosed by law, court order or other legal process; provided, however, that 
in the event disclosure is required by law, the Executive shall provide the 
Company with prompt notice of such requirement so that the Company may seek 
an appropriate protective order prior to any such required disclosure by the 
Executive.

         (e)  ENFORCEMENT OF THE RESTRICTIVE COVENANTS.

              (i)  RIGHTS AND REMEDIES UPON BREACH.  In the event the 
Executive breaches, or threatens to commit a breach of, any of the provisions 
of the Restrictive Covenants, the Company shall have the right and remedy to 
enjoin, preliminarily and permanently, the Executive from violating or 
threatening to violate the Restrictive Covenants and to have the Restrictive 
Covenants specifically enforced by any court of competent jurisdiction, it 
being agreed that any breach or threatened breach of the Restrictive 
Covenants would cause irreparable injury to the Company and that money 
damages would not provide an adequate remedy to the Company.  The rights 
referred to in the preceding sentence shall be independent of any others and 
severally enforceable, and shall be in addition to, and not in lieu of, any 
other rights and remedies available to the Company at law or in equity.

                                      10

<PAGE>

              (ii) SEVERABILITY OF COVENANTS.  The Executive acknowledges and 
agrees that the Restrictive Covenants are reasonable and valid in time and 
space and in all other respects.  If any court determines that any 
Restrictive Covenants, or any part thereof, is invalid or unenforceable, the 
remainder of the Restrictive Covenants shall not thereby be affected and 
shall be given full effect, without regard to the invalid portions. 

    12.  COOPERATION IN FUTURE MATTERS

    The Executive hereby agrees that, for a period of three (3) years 
following his Date of Termination, he shall cooperate with the Company's 
reasonable requests relating to matters that pertain to the Executive's 
employment by the Company, including, without limitation, providing 
information or limited consultation as to such matters, participating in 
legal proceedings, investigations or audits on behalf of the Company, or 
otherwise making himself reasonably available to the Company for other 
related purposes.  Any such cooperation shall be performed at times scheduled 
taking into consideration the Executive's other commitments, and the 
Executive shall be compensated at a reasonable hourly or per diem rate to be 
agreed by the parties to the extent such cooperation is required on more than 
an occasional and limited basis.  The Executive shall not be required to 
perform such cooperation to the extent it conflicts with any requirements of 
exclusivity of service for another employer or otherwise, nor in any manner 
that in the good faith belief of the Executive would conflict with his rights 
under or ability to enforce this Agreement.

    13.  INDEMNIFICATION

         (a)  Following the Date of Termination, the Company agrees that it 
will, indemnify and hold harmless the Executive, against any costs or 
expenses (including attorneys' fees), judgments, fines, losses, claims, 
damages, liabilities or amounts paid in settlement incurred in connection 
with any claim, action, suit, proceeding or investigation, whether civil, 
criminal, administrative or investigative, arising out of or pertaining to 
matters existing or occurring at or prior to the Date of Termination, whether 
asserted or claimed prior to, at or after the Date of Termination, to the 
fullest extent that the Company would have been permitted under Delaware law 
and its certificate of incorporation or bylaws in effect on the date hereof 
to indemnify the Executive (and the Company shall also advance expenses as 
incurred to the fullest extent permitted under applicable law, provided the 
Executive provides an undertaking to repay advances if it is ultimately 
determined that the Executive is not entitled to indemnification).

         (b)  For a period of six years after the Date of Termination, the 
Company shall maintain (to the extent available in the market) in effect a 
director's and officer's liability insurance policy covering with coverage in 
amount and scope at least as favorable as the Company's existing coverage on 
the Date of Termination; provided that in no event shall the Company be 
required to expend in the aggregate in excess of 200% of the annual premium 
paid by the Company for such coverage as of the Date of Termination; and if 
such premium would at any time exceed 200% of the such amount, then the 
Company shall maintain insurance policies which provide the maximum and best 
coverage available at an annual premium equal to 200% of such amount.

                                      11

<PAGE>

         (c)  The provisions of this Section 13 are intended to be an addition
to the rights otherwise available to the Executive by law, charter, statute,
bylaw or separate agreement between the Company and the Executive.  The Company
shall continue to honor any indemnification agreement between the Company and
the Executive entered into prior to the Date of Termination in accordance with
the terms thereof.

    14.  SUCCESSORS, BINDING AGREEMENT.

         (a)  The Company will require any successor (whether direct or 
indirect, by purchase, merger, consolidation or otherwise) to all or 
substantially all of the business and/or assets of the Company to expressly 
assume and agree to perform this Agreement in the same manner and to the same 
extent that the Company would be required to perform it if no such succession 
had taken place.  Failure of the Company to obtain such assumption and 
agreement prior to the effectiveness of any such succession shall be a breach 
of this Agreement and shall entitle the Executive to compensation from the 
Company in the same amount as a Covered Termination following a 
Reorganization Event of the Company, except that for purposes of implementing 
the foregoing, the date on which any such succession becomes effective shall 
be deemed the Date of Termination.  As used in this Agreement, "Company" 
shall mean the Company as herein before defined and any successor to its 
business and/or assets as aforesaid which assumes and agrees to perform this 
Agreement by operation of law, or otherwise.  

         (b)  This Agreement shall inure to the benefit of and be enforceable 
by the Executive's personal or legal representatives, executors, 
administrators, successors, heirs, distributees, devises and legatees.  If 
the Executive should die while any amount remains payable to him hereunder, 
all such amounts, unless otherwise provided herein, shall be paid in 
accordance with the terms of this Agreement to the Executive's devisee, 
legatee or other designee or, if there is no such designee, to the 
Executive's estate.  

    15.  NOTICE  

    Any notice required or permitted to be given by this Agreement shall be 
effective only if in writing, delivered personally against receipt therefor 
or mailed by certified or registered mail, return receipt requested, to the 
parties at the addresses hereinafter set forth, or at such other places that 
either party may designate by notice to the other.

    Notice to the Company shall be addressed to:

         Promus Hotel Corporation
         755 Crossover Lane
         Memphis, Tennessee  38117
         Attention: General Counsel

                                      12

<PAGE>

    Notice to the Executive shall be addressed to him at the business address 
of the Company where the Executive is employed, with a copy to him at his 
home address as follows:

    All such notices shall be deemed effectively given five (5) days after 
the same has been deposited in a post box under the exclusive control of the 
United States Postal Service.

    16.  MISCELLANEOUS

    No provision of this Agreement may be modified, waived or discharged 
unless such waiver, modification or discharge is agreed to in writing and 
signed by the Executive and such officer of the Company as may be 
specifically designated by the Board.  No waiver by either party hereto at 
any time of any breach by the other party hereto of, or compliance with, any 
condition or provision of this Agreement to be performed by such other party 
shall be deemed a waiver of similar or dissimilar provisions or conditions at 
the same or at any prior or subsequent time.  No agreement or 
representations, oral or otherwise, express or implied, with respect to the 
subject matter hereof have been made by either party which are not expressly 
set forth in this Agreement.  The validity, interpretation, construction and 
performance of this Agreement shall be governed by the laws of the State of 
Delaware.  The invalidity or unenforceability of any provision of this 
Agreement shall not affect the validity or enforceability of any other 
provision of this Agreement, which shall remain in full force and effect.  

    17.  COUNTERPARTS  

    This Agreement may be executed in several counterparts, each of which 
shall be deemed to be an original but all of which together will constitute 
one and the same instrument.

    18.  ARBITRATION  

    Any dispute or controversy arising under or in connection with this 
Agreement shall be settled exclusively by arbitration in Memphis, Tennessee 
accordance with the rules of the American Arbitration Association then in 
effect.  Judgment may be entered on the arbitrator's award in any court 
having jurisdiction. 

    19.  PAYMENT OF LEGAL FEES 

    The Company shall pay all reasonable legal fees and expenses incurred by 
the Executive in connection with any arbitration (or other proceeding whether 
or not instituted by the Company or the Executive), relating to the 
interpretation or enforcement of any provision of this Agreement (including 
any action seeking to obtain or enforce any right or benefit provided by this 
Agreement) or in connection with any tax audit or proceeding relating to the 
application of Section 4999 of the Code to any payment or benefit provided by 
the Company.

    20.  NO RESTRICTIONS ON EMPLOYMENT RIGHTS

    Nothing in this Agreement shall confer on the Executive any right to 
continue in the employ of the Company or shall interfere with or restrict in 
any way the rights of the Company,

                                      13

<PAGE>

which are hereby expressly reserved, to discharge the Executive at any time 
for any reason whatsoever, with or without Cause, subject to the requirements 
of this Agreement.  Nothing in this Agreement shall restrict the right of the 
Executive to terminate his employment with the Company at any time for any 
reason whatsoever.

    21.  OTHER AGREEMENTS

    This Agreement is not intended to, and shall not, in any way supersede, 
amend or affect the Executive's Severance Agreement, dated as of June 30, 
1995 with the Company (the "Existing Severance Agreement"), as the Existing 
Severance Agreement is being amended concurrently herewith.  However, in no 
event shall the Executive receive payments or other benefits under both the 
Existing Severance Agreement and this Agreement.  In the event that the 
Executive becomes entitled to receive severance payment or other benefits 
under both the Existing Severance Agreement and under this Agreement, the 
Executive may elect which agreement shall apply for all purposes, including 
payments and benefits (but, e.g., may not elect one particular benefit under 
one agreement and another benefit under the other agreement) by filing a 
written election with the Company at any time before the Executive receives 
his first severance payment under either of such agreements.

    22.  HOSTILE TRANSACTION PROVISION

         Notwithstanding anything elsewhere in this Agreement to the contrary:

    (a)  In the event of consummation of a Hostile Transaction, the 
provisions of Section 11 hereof and Section 12 hereof shall not be applicable 
to the Executive.

    (b)  For purposes, hereof, a "Hostile Transaction" shall be any 
Reorganization Event which has, at any time prior to the consummation 
thereof, been designated such by a resolution of the incumbent Board.

                                      14

<PAGE>

    IN WITNESS WHEREOF, the parties have executed these presents as of the day
and year first above written.

                             PROMUS HOTEL CORPORATION


                             ___________________________________
                             Name:   Ralph B. Lake
                             Title:  Secretary & General Counsel


                             EXECUTIVE


                             ________________________________
                             Name:  Raymond E. Schultz


                                      15

<PAGE>

                              SEVERANCE AGREEMENT


THIS SEVERANCE AGREEMENT (this "Agreement") is made as of this ____ day of 
November, 1997, between DOUBLETREE CORPORATION (the "Company") and RICHARD M. 
KELLEHER (the "Executive").

                                  RECITALS

WHEREAS, the Company considers it essential to the best interest of its 
stockholders to foster the continuous employment of key management personnel, 
and believes that the possibility of a reorganization event of the Company 
and the uncertainty and questions which it may raise among management may 
result in the departure or distraction of management personnel to the 
detriment of the Company and its stockholders; and

WHEREAS, the Board of Directors has determined that appropriate steps 
should be taken to reinforce and encourage the continued attention and 
dedication of members of the Company's management, including the Executive, 
to their assigned duties without distraction in the face of potentially 
disturbing circumstances arising from the possibility of a reorganization 
event of the Company;

NOW, THEREFORE, in consideration of the mutual premises set forth below 
and for other good and valuable consideration, in order to induce the 
Executive to remain in the employ of the Company, the Company agrees that the 
Executive shall receive the severance benefits set forth in this agreement 
("this Agreement") in the event his employment with the Company terminates 
subsequent to a "Reorganization Event" of the Company under the circumstances 
described below.

                                  AGREEMENT

1. DEFINITIONS 

The following terms used in this Agreement shall have the meanings given
below:

(a) "Annual Base Salary" shall mean the Executive's gross annual salary 
before any deductions, exclusions or any deferrals or contributions under any 
Company plan or program, but excluding 


                                       1

<PAGE>

bonuses, incentive compensation, employee benefits or any other non-salary 
form of compensation.

(b) "Board" shall mean the Board of Directors of the Company.

(c) "Bonus Amount" shall mean the greater of (i) the dollar amount of the 
annual bonus that would be payable to the Executive under the Company's 
annual bonus plan applicable to the Executive, assuming payment at the 
Executive's target level for the then-current full fiscal year or (ii) the 
dollar amount of the bonus paid or payable to the Executive under the 
Company's annual bonus plan for the most recently completed fiscal year under 
such plan.  For the purposes hereof, the "Bonus Amount" shall not include any 
special bonuses paid outside of the Company's generally applicable annual 
bonus plan.

(d) "Code" shall mean the Internal Revenue Code of 1986, as amended.

(e) "Company" shall mean Doubletree Corporation, or any successor 
corporation that assumes this Agreement under Section 14 hereof or otherwise 
becomes bound by this Agreement.

(f) "Covered Termination" shall have the meaning given in Section 3 
hereof. 

(g) "Date of Termination" shall mean the effective date of the 
Executive's Covered Termination pursuant to Section 3 hereof.

(h) "Disability" shall mean the absence of the Executive from the 
full-time performance of his duties with the Company for six consecutive 
months as a result of incapacity due to physical or mental illness, provided 
the Company has given 30-day advance written notice to the Executive and he 
has not returned to the full-time performance of his duties.

(i) "Reorganization Event" shall mean the occurrence of any of the 
following after the date hereof:

     (i) any "person" (as such term is used in Section 13(d) and 14(d) of 
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), other 
than an employee benefit plan of the Company, or a trustee or other fiduciary 
holding securities under an employee benefit plan of the Company, becomes a 
"beneficial owner" (as defined in rule 13d-3 under the Exchange Act), 
directly or indirectly, of 25% or more of the Company's then outstanding 
voting securities carrying the right to vote in elections of persons to the 
Board, regardless of comparative voting power of such voting securities, and 
regardless of whether or not the Board shall have approved such 
Reorganization Event; provided, however, that an acquisition after the date 
hereof by the General Electric Pension Trust or its affiliates, by Richard 
Ferris, or by Peter Ueberroth of 25% or more of the Company's 
then-outstanding securities shall not be deemed a "Reorganization Event" of 
the Company; or

(ii) during any period of two (2) consecutive years (not including 
any period prior to the execution of this Agreement), individuals who at the 
beginning of such period constitute the 


                                      2

<PAGE>

Board (the "Incumbent Board") and any other new director (other than a 
director designated by a person who shall have entered into an agreement with 
the Company to effect a transaction described in clauses (i) or (iii) of this 
subsection) whose election by the Board or nomination for election by the 
Company's stockholders was approved by a vote of at least two-thirds (2/3) of 
the directors then still in office who either were directors at the beginning 
of the period or whose election or nomination for election was previously so 
approved (each such new director being considered a member of the "Incumbent 
Board"), cease for any reason to constitute a majority thereof; or

     (iii) the holders of securities of the Company entitled to vote 
thereon approve of the following:

(A) a merger or consolidation of the Company with any other corporation 
regardless of which entity is the surviving company, other than a merger or 
consolidation which would result in the voting securities of the Company 
carrying the right to vote in elections of persons to the Board outstanding 
immediately prior thereto continuing to represent (either by remaining 
outstanding or by being converted into voting securities of the surviving 
entity) at least 66 2/3% of the Company's then-outstanding voting securities 
carrying the right to vote in elections of persons to the Board or such 
securities of such surviving entity outstanding immediately after such merger 
or consolidation, or

(B) a plan of complete liquidation of the Company or an agreement for the 
sale or disposition by the Company of all or substantially all of the 
Company's assets.

    Notwithstanding the definition of "Reorganization Event" of the Company 
as set forth in this Agreement, the Board shall have full and final 
authority, which shall be exercised in its discretion, to determine 
conclusively whether a Reorganization Event of the Company has occurred, and 
the date of the occurrence of such Reorganization Event and any incidental 
matters relating thereto, with respect to a transaction or series of 
transactions which have resulted or will result in a substantial portion of 
the assets or business of the Company (as determined immediately prior to the 
transaction or series of transactions by the Board in its sole discretion 
which determination shall be final and conclusive) being held by a 
corporation at least 66 2/3% of whose voting securities are held, immediately 
following such transaction or series of transactions, by holders of the 
voting securities of the Company (determined immediately prior to such 
transaction or series of transactions).  The Board may exercise such 
discretionary authority without regard to whether one or more of the 
transactions in such series of transactions would otherwise constitute a 
Reorganization Event of the Company under the definition set forth in this 
Agreement.  It is hereby understood and agreed that the consummation of the 
business combination contemplated by the Agreement and Plan of Merger dated 
as of September 1, 1997 among Doubletree Corporation, Promus Hotel 
Corporation and Parent Holding Corp. shall constitute a Reorganization Event 
for purposes of this Agreement.

2. TERM OF AGREEMENT


                                       3

<PAGE>

    This Agreement shall commence on the date first written above and shall 
continue in effect though December 31, 1998; provided, however, that 
commencing on January 1, 1999 and each January 1 thereafter, the term of this 
Agreement shall automatically be extended for one additional year unless, not 
later than September 30 of the preceding year, the Company shall have given 
notice that it does not wish to extend this Agreement.  Notwithstanding the 
foregoing, no notice of non-renewal given by the Board shall be effective 
with respect to a particular Reorganization Event if given after the 
occurrence of the following events: (i) the Company enters into an agreement 
or letter of intent, the consummation of which would result in such 
Reorganization Event, (ii) any "person" makes a public announcement of its 
intention to take or consider taking actions that would result in such 
Reorganization Event, or (iii) any "person" (as defined above) initiates a 
tender offer which, if consummated, would result in such Reorganization Event 
(it being understood that this sentence shall not apply with respect to any 
unrelated Reorganization Event).  If a Reorganization Event of the Company 
shall have occurred during the original or extended term of this Agreement, 
the term of this Agreement shall continue in force and effect until the 
satisfaction of all of the Company's obligations to the Executive as provided 
hereunder. For purposes hereof, the proposed merger (the "Proposed Merger") 
between Doubletree Corporation and Promus Hotel Corporation pursuant to the 
terms of an Agreement of Plan and Merger dated September 1, 1997 shall 
constitute a Reorganization Event.

3.  COVERED TERMINATION 

(a) General. The Executive shall be treated as having incurred a "Covered 
Termination" hereunder if, within the "Coverage Period" (defined below), the 
employment of the Executive is terminated either (1) by the Company other 
than for Cause or (2) by the Executive for any reason.  The Executive shall 
not be treated as having incurred a Covered Termination if his employment is 
terminated as a result of death or Disability.  For purposes hereof, the 
Coverage Period shall be a period of two (2) years following the consummation 
of a Reorganization Event; PROVIDED, HOWEVER, that if the Reorganization 
Event is a result of the Proposed Merger, the Coverage Period shall be the 
period commencing on the consummation date of the Proposed Merger and 
expiring on the later of (i) the second anniversary of such consummation date 
or (ii) the date as of which Richard M. Kelleher becomes the Chairman of the 
Board and Chief Executive Officer of the Parent Holding Corp. pursuant to the 
provisions of the employment agreement between Richard M. Kelleher and the 
Parent Holding Corp. to be entered into in connection with the Proposed 
Merger. NOTE that, as described below, the Executive must give 30-days 
advance written notice of termination by the Executive, thus effectively 
requiring that such notice be given no later than 30 days prior to the 
expiration of the Coverage Period described above (in order for the Date of 
Termination to occur prior to the expiration of such period).


(b)  Termination for Cause. Termination by the Company of the Executive's 
employment for "Cause" shall mean termination as a result of:

(i) the Executive engaging in willful gross neglect of his duties 
with the Company, or the Executive's fraud or dishonesty in connection with 
his performance of duties to the Company, in either case which has a 
materially detrimental effect on the business or operations of the Company; 
or 


                                       4

<PAGE>

(ii) the Executive's conviction by a court of competent jurisdiction 
of any crime (or upon entering a plea of guilty or nolo contendere to a 
charge of any crime) constituting a felony;

The Date of Termination for a termination for Cause shall be the date 
specified by the Company.

    (c) Termination by Executive. The Executive may terminate his employment
for any reason during the Coverage Period and it shall be treated as a Covered
Termination hereunder.  The Executive shall provide the Company with 30-day
advance written notice of such termination.  Such notice must be given not later
than the date that is 30 days prior to the expiration of the Coverage Period
described above.  The Date of Termination for such a termination shall be the
expiration of such 30-day notice period.

4. SEVERANCE PAYMENT

    The amount of the severance payment to be paid to the Executive upon 
Covered Termination shall be the amount determined by multiplying 3.00 times 
the sum of:

(a) the Executive's Annual Base Salary as in effect immediately prior to 
the Date of Termination; plus,

(b) the Executive's Bonus Amount applicable for the fiscal year in which 
the Date of Termination occurs; plus,

(c) a benefit allowance of 25% of the Executive's Annual Base Salary as 
in effect immediately prior to the Date of Termination, less an amount 
estimated in good faith by the Company to represent the cost of providing the 
lifetime group insurance benefits described in Section 5 of the Employment 
Agreement (as defined below) for a period of three years following the Date 
of Termination.

5. OTHER SEVERANCE BENEFITS

In addition to the severance payment provided under Section 4 hereof, the 
Executive shall be entitled to the following benefits and other rights in the 
event of his Covered Termination:

(a) Accrued Rights.  The Executive shall be entitled to the following 
payments and benefits in respect of accrued compensation rights upon a 
Covered Termination, in addition to other rights provided under this 
Agreement:

         (i) payment of any accrued but unpaid Annual Base Salary and annual 
bonus (for any completed fiscal year) through the Date of Termination; 

         (ii) payment of a pro-rata portion of the Bonus Amount for  the 
fiscal year of the Company in which the Covered Termination occurs, based on 
the number of days of such year prior to the Date of Termination; 


                                       5

<PAGE>

(iii) all benefits and rights accrued under the employee benefit 
plans, fringe benefits programs and payroll practices of the Company in 
accordance with their terms (including, without limitations, employee 
pension, employee welfare, incentive bonus, stock incentive plans, and any 
accrued vacation or accrued sick pay time);

(iv) a payment equal to the forfeited portion of the account balance 
of the Executive under the Company's tax-qualified and non-qualified pension 
and deferred compensation plans as a result of failure to satisfy vesting 
requirements due to the Covered Termination; and

(v) payment of the Executive's benefits pursuant to the terms of the 
Doubletree Hotels Corporation Supplemental Executive Retirement Plan (the 
"SERP"), which, for the purposes thereof, the Company acknowledges that the 
Proposed Merger shall constitute a "Change of Control" (as defined therein), 
and which is attached as Exhibit A hereto.

(b) Outplacement Services. Upon the occurrence of a Covered Termination, 
the Executive shall be provided, at the Company's sole expense, with 
professional outplacement services consistent with the Executive's duties or 
profession and of a type and level customary for persons in his position, as 
selected by the Company, subject to reasonable limitations established by the 
Company on a uniform basis for similarly situated executives as to duration 
and dollar amounts.

(c) Equity Rights. In the event that the Executive's termination of 
employment constitutes a termination without "Cause" or a resignation for 
"Good Reason", as such terms are defined in the employment agreement between 
the Executive and Promus Hotel Corporation (f.k.a. Parent Holding Corp.) 
dated in November 1997 (the "Employment Agreement"), all outstanding awards 
of stock options and restricted stock that have been granted to the Executive 
shall continue to become vested and following the Date of Termination, at the 
same times and on the same basis as if the Executive had remained employed by 
the Company and, in the case of stock options, shall remain exercisable 
following the vesting thereof until the expiration of the original full term. 
NOTE that, pursuant to Section 11.02(d) of the Employment Agreement, the 
contemplated relocation of the Executive's offices from Phoenix, Arizona to 
Memphis, Tennessee in connection with the Proposed Merger will constitute a 
Good Reason under the Employment Agreement.

(d)  Lifetime Insurance.  In the event that the Executive's termination of 
employment constitutes a termination without "Cause" or a resignation for 
"Good Reason", as such terms are defined in the Employment Agreement, the 
Executive shall also be entitled to the lifetime group insurance benefits 
described in Section 5 of the Employment Agreement.

6. EXCISE TAX REIMBURSEMENT

In the event it shall be determined that any payment or distribution by 
the Company or any other person or entity to or for the Executive's benefit, 
whether paid or payable or distributed or distributable pursuant to the terms 
of this Agreement or otherwise, or whether prior to or following the Covered 
Termination in connection with, or arising out of, the Executive's employment 
with the Company or a Reorganization Event of the Company (a "Payment") will 
be subject to the tax (the "Excise Tax") imposed by section 4999 of the Code, 
the Company shall pay to the Executive at the time specified in Section 7 
hereof, below, an additional amount (the 


                                       6

<PAGE>

"Gross-Up Payment") such that the net amount retained by the Executive, after 
deduction of any Excise Tax on the Payments and any federal (and state and 
local) income tax, employment tax, and Excise Tax upon the payment provided 
for by this paragraph, shall be equal to the amount of the Payments.  For 
purposes of determining whether any of the Payments will be subject to the 
Excise Tax and the amount of such Excise Tax the following will apply: 


(a) any payments or benefits received or to be received by the Executive 
in connection with a Reorganization Event of the Company or his termination 
of employment (whether pursuant to the terms of this Agreement or any other 
plan, arrangement or agreement with the Company, any person whose actions 
result in a Reorganization Event of the Company or any person affiliated with 
the Company or such person) shall be treated as "parachute payments" within 
the meaning of section 280G(b)(2) of the Code, and all "excess parachute 
payments" within the meaning of section 280G(b)(1) shall be treated as 
subject to the Excise Tax, unless in the opinion of tax counsel selected by 
the Company's independent auditors and acceptable to the Executive such other 
payments or benefits (in whole or in part) do not constitute parachute 
payments, or such excess parachute payments (in whole or in part) represent 
reasonable compensation for services actually rendered within the meaning of 
section 280G(b)(4) of the Code in excess of the base amount within the 
meaning of section 280G(b)(3) of the Code, or are otherwise not subject to 
the Excise Tax; and

(b) the value of any non-cash benefits or any deferred payment or benefit 
shall be determined by the Company's independent auditors in accordance with 
proposed, temporary or final regulations under Sections 280G(d)(3) and (4) of 
the Code or, in the absence of such regulations, in accordance with the 
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of 
determining the amount of the Gross-Up Payment, the Executive shall be deemed 
to pay federal income taxes at the highest marginal rate of federal income 
taxation in the calendar year in which the Gross-Up Payment is to be made and 
state and local income taxes at the highest marginal rate of taxation in the 
state and locality of the Executive's residence on the Date of Termination, 
net of the maximum reduction in federal income taxes which could be obtained 
from deduction of such state and local taxes.  In the event that the amount 
of Excise Tax attributable to Payments is subsequently determined to be less 
than the amount taken into account hereunder at the time of termination of 
the Executive's employment, he shall repay to the Company at the time that 
the amount of such reduction in Excise Tax is finally determined the portion 
of the Gross-Up Payment attributable to such reduction (plus the portion of 
the Gross-Up Payment attributable to the Excise Tax, employment tax and 
federal (and state and local) income tax imposed on the Gross-Up Payment 
being repaid by the Executive if such repayment results in a reduction in 
Excise Tax and/or a federal (and state and local) income tax deduction) plus 
interest on the amount of such repayment at the rate provided in section 
1274(b)(2) (B) of the Code.  In the event that the Excise Tax attributable to 
Payments is determined to exceed the amount taken into account hereunder at 
the time of the termination of the Executive's employment (including by 
reason of any payment the existence or amount of which cannot be determined 
at the time of the Gross-Up Payment), the Company shall make an additional 
gross-up payment in respect of such excess (plus any interest payable with 
respect to such excess) at the time that the amount of such excess is finally 
determined.


                                       7

<PAGE>

7. METHOD OF PAYMENT

The payments provided for in Sections 4, 5 and 6 hereof shall be made in 
a cash lump-sum payment, net of any required tax withholding, upon the later 
of (i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 10 hereof.  Any payment required 
under Sections 4, 5 or 6 or any other provision of this Agreement that is not 
made in a timely manner shall bear interest at a rate equal to one-hundred 
twenty (120) percent of the monthly compounded applicable federal rate, as in 
effect under Section 1274(d) of the Code for the month in which the payment 
is required to be made.

8. RELOCATION EXPENSES

The Executive shall be entitled to a reimbursement payment from the Company 
equal to his reasonable moving expenses (determined in accordance with 
Company's relocation policy), as well as a payment to reimburse the Executive 
for the loss of equity upon the sale of his existing principal residence (plus 
an additional payment to make the Executive whole on an after-tax basis for 
the federal, state and local tax consequences of such payment), incurred in 
connection with the Executive's written acceptance of a position with the 
Company requiring his relocation to a metropolitan area, other than the 
metropolitan area where his office is located at the time of the 
Reorganization Event of the Company.  The Company shall pay the Executive an 
additional payment in an amount such that the net amount retained by the 
Executive after deduction for any federal, state, and local income tax, 
employment tax and any excise tax on the reimbursement payment shall equal 
the amount of the reimbursement payment.

9. NO MITIGATION OR OFFSET

The Executive shall not be required to mitigate the amount of any 
severance payment or benefit provided under this Agreement by seeking other 
employment or otherwise.  The amount of any payment or benefit to which the 
Executive becomes entitled hereunder shall not be reduced by any compensation 
earned by the Executive as the result of employment by another employer, by 
retirement benefits, nor by offset against any amount claimed to be owed to 
the Company by reason of a claimed breach by the Executive of his obligations 
under Sections 11 or 12 hereof or otherwise.

10. RELEASE OF CLAIMS

As conditions of Executive's entitlement to the severance payments and 
benefits provided by this Agreement, the Executive shall be required to 
execute and honor the terms of a waiver and release of claims against the 
Company substantially in the form attached hereto as Exhibit B (as may be 
modified consistent with the purposes of such waiver and release to reflect 
changes in law following the date hereof).  

11. RESTRICTION ON CONDUCT OF EXECUTIVE

(a)   General.  The Executive and the Company understand and agree that 
the purpose of the provisions of this Section 11 is to protect legitimate 
business interests of the Company, as more fully described below, and is not 
intended to impair or infringe upon the Executive's right to 


                                       8

<PAGE>

work, earn a living, or acquire and possess property from the fruits of his 
labor.  The Executive hereby acknowledges that the post-employment 
restrictions set forth in this Section 11 are reasonable and that they do 
not, and will not, unduly impair his ability to earn a living after the 
termination of his employment with the Company. Therefore, subject to the 
limitations of reasonableness imposed by law upon restrictions set forth 
herein, the Executive shall be subject to the restrictions set forth in this 
Section 11.


(b)  Definitions.  The following capitalized terms used in this Section 
11 shall have the meanings assigned to them below, which definitions shall 
apply to both the singular and the plural forms of such terms:

"Confidential Information" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.

"Determination Date" means the date of termination of the Executive's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Executive.

"Person" means any individual or any corporation, partnership, joint 
venture, association or other entity or enterprise.

"Principal or Representative" means a principal, owner, partner, 
shareholder, joint venturer, member, trustee, director, officer, manager, 
employee, agent, representative or consultant.

"Protected Employees" means employees of the Company or its affiliated 
companies who were employed by the Company or its affiliated companies at any 
time within six (6) months prior to the Determination Date.

"Restricted Period" means the period of the Executive's employment by the 
Company plus a period extending two (2) years from the date of termination of 
employment.

"Restrictive Covenants" means the restrictive covenants contained in 
Section 11(c) hereof

(c) Restrictive Covenants.


                                       9

<PAGE>

(i) Restriction on Disclosure and Use of Confidential 
Information.  The Executive understands and agrees that the Confidential 
Information constitutes a valuable asset of the Company and its affiliated 
entities, and may not be converted to the Executive's own use.  Accordingly, 
the Executive hereby agrees that the Executive shall not, directly or 
indirectly, at any time during the Restricted Period reveal, divulge or 
disclose to any Person not expressly authorized by the Company any 
Confidential Information, and the Executive shall not, directly or 
indirectly, at any time during the Restricted Period use or make use of any 
Confidential Information in connection with any business activity other than 
that of the Company.  The parties acknowledge and agree that this Agreement 
is not intended to, and does not, alter either the Company's rights or the 
Executive's obligations under any state or federal statutory or common law 
regarding trade secrets and unfair trade practices.

(ii) Nonsolicitation of Protected Employees.  The Executive 
understands and agrees that the relationship between the Company and each of 
its Protected Employees constitutes a valuable asset of the Company and may 
not be converted to the Executive's own use.  Accordingly, the Executive 
hereby agrees that during the Restricted Period the Executive shall not 
directly or indirectly on the Executive's own behalf or as a Principal or 
Representative of any Person solicit any Protected Employee to terminate his 
or her employment with the Company.

(iii) Noninterference with Company Opportunities.  The Executive 
understands and agrees that all hotel development opportunities with which he 
is involved during his employment with the Company constitute valuable assets 
of the Company and its affiliated entities, and may not be converted to the 
Executive's own use.  Accordingly, the Executive hereby agrees that during 
the Restricted Period the Executive shall not directly or indirectly on the 
Executive's own behalf or as a Principal or Representative of any Person, 
interfere with, solicit, pursue, or in any way make use of any such hotel 
development opportunities.

(d) Exceptions from Disclosure Restrictions.  Anything herein to the 
contrary notwithstanding, the Executive shall not be restricted from 
disclosing or using Confidential Information that: (i) is or becomes 
generally available to the public other than as a result of an unauthorized 
disclosure by the Executive or his agent; (ii) becomes available to the 
Executive in a manner that is not in contravention of applicable law from a 
source (other than the Company or its affiliated entities or one of its or 
their officers, employees, agents or representative) that is not bound by a 
confidential relationship with the Company or its affiliated entities or by a 
confidentiality or other similar agreement; (iii) was known to the Executive 
on a non-confidential basis and not in contravention of applicable law or a 
confidentiality or other similar agreement before its disclosure to the 
Executive by the Company or its affiliated entities or one of its or their 
officers, employees, agents or representatives; or (iv) is required to be 
disclosed by law, court order or other legal process; PROVIDED, HOWEVER, that 
in the event disclosure is required by law, court order or legal process, the 
Executive shall provide the Company with prompt notice of such requirement so 
that the Company may seek an appropriate protective order prior to any such 
required disclosure by the Executive.

(e) Enforcement of the Restrictive Covenants.


                                      10


<PAGE>

(i) Rights and Remedies upon Breach.  In the event the Executive breaches, or 
threatens to commit a breach of, any of the provisions of the Restrictive 
Covenants, the Company shall have the right and remedy to enjoin, 
preliminarily and permanently, the Executive from violating or threatening to 
violate the Restrictive Covenants and to have the Restrictive Covenants 
specifically enforced by any court of competent jurisdiction, it being agreed 
that any breach or threatened breach of the Restrictive Covenants would cause 
irreparable injury to the Company and that money damages would not provide an 
adequate remedy to the Company.  The rights referred to in the preceding 
sentence shall be independent of any others and severally enforceable, and 
shall be in addition to, and not in lieu of, any other rights and remedies 
available to the Company at law or in equity.

(ii)  Severability of Covenants.  The Executive acknowledges and 
agrees that the Restrictive Covenants are reasonable and valid in time and 
space and in all other respects.  If any court determines that any 
Restrictive Covenants, or any part thereof, is invalid or unenforceable, the 
remainder of the Restrictive Covenants shall not thereby be affected and 
shall be given full effect, without regard to the invalid portions. 

12. COOPERATION IN FUTURE MATTERS

The Executive hereby agrees that, for a period of three (3) years 
following his Date of Termination, he shall cooperate with the Company's 
reasonable requests relating to matters that pertain to the Executive's 
employment by the Company, including, without limitation, providing 
information or limited consultation as to such matters, participating in 
legal proceedings, investigations or audits on behalf of the Company, or 
otherwise making himself reasonably available to the Company for other 
related purposes.  Any such cooperation shall be performed at times scheduled 
taking into consideration the Executive's other commitments, and the 
Executive shall be compensated at a reasonable hourly or per diem rate to be 
agreed by the parties to the extent such cooperation is required on more than 
an occasional and limited basis.  The Executive shall not be required to 
perform such cooperation to the extent it conflicts with any requirements of 
exclusivity of service for another employer or otherwise, nor in any manner 
that in the good faith belief of the Executive would conflict with his rights 
under or ability to enforce this Agreement.

13. INDEMNIFICATION

(a) Following the Date of Termination, the Company agrees that it will, 
indemnify and hold harmless the Executive, against any costs or expenses 
(including attorneys' fees), judgments, fines, losses, claims, damages, 
liabilities or amounts paid in settlement incurred in connection with any 
claim, action, suit, proceeding or investigation, whether civil, criminal, 
administrative or investigative, arising out of or pertaining to matters 
existing or occurring at or prior to the Date of Termination, whether 
asserted or claimed prior to, at or after the Date of Termination, to the 
fullest extent that the Company would have been permitted under Delaware law 
and its certificate of incorporation or bylaws in effect on the date hereof 
to indemnify the Executive (and the Company shall also advance expenses as 
incurred to the fullest extent 


                                      11

<PAGE>

permitted under applicable law, provided the Executive provides an 
undertaking to repay advances if it is ultimately determined that the 
Executive is not entitled to indemnification).

    (b)  For a period of six years after the  Date of Termination, the 
Company shall maintain (to the extent available in the market) in effect a 
director's and officer's liability insurance policy covering with coverage in 
amount and scope at least as favorable as the Company's existing coverage on 
the Date of Termination; provided that in no event shall the Company be 
required to expend in the aggregate in excess of 200% of the annual premium 
paid by the Company for such coverage as of the Date of Termination; and if 
such premium would at any time exceed 200% of the such amount, then the 
Company shall maintain insurance policies which provide the maximum and best 
coverage available at an annual premium equal to 200% of such amount.

(c) The provisions of this Section 13 are intended to be an addition to 
the rights otherwise available to the Executive by law, charter, statute, 
bylaw or separate agreement between the Company and the Executive. The 
Company shall continue to honor any indemnification agreement between the 
Company and the Executive entered into prior to the Date of Termination in 
accordance with the terms thereof.

14. SUCCESSORS, BINDING AGREEMENT.

(a) The Company will require any successor (whether direct or indirect, 
by purchase, merger, consolidation or otherwise) to all or substantially all 
of the business and/or assets of the Company to expressly assume and agree to 
perform this Agreement in the same manner and to the same extent that the 
Company would be required to perform it if no such succession had taken 
place.  Failure of the Company to obtain such assumption and agreement prior 
to the effectiveness of any such succession shall be a breach of this 
Agreement and shall entitle the Executive to compensation from the Company in 
the same amount and on the same terms as the Executive would be entitled to 
hereunder if the Company terminated his employment without Cause following a 
Reorganization Event of the Company, except that for purposes of implementing 
the foregoing, the date on which any such succession becomes effective shall 
be deemed the Date of Termination.  As used in this Agreement, "Company" 
shall mean the Company as herein before defined and any successor to its 
business and/or assets as aforesaid which assumes and agrees to perform this 
Agreement by operation of law, or otherwise.

(b) This Agreement shall inure to the benefit of and be enforceable by 
the Executive's personal or legal representatives, executors, administrators, 
successors, heirs, distributees, devises and legatees.  If the Executive 
should die while any amount remains payable to him hereunder, all such 
amounts, unless otherwise provided herein, shall be paid in accordance with 
the terms of this Agreement to the Executive's devisee, legatee or other 
designee or, if there is no such designee, to the Executive's estate.  

15. NOTICE

Any notice required or permitted to be given by this Agreement shall be 
effective only if in writing, delivered personally against receipt therefor 
or mailed by certified or registered mail, 


                                      12

<PAGE>

return receipt requested, to the parties at the addresses hereinafter set 
forth, or at such other places that either party may designate by notice to 
the other.

Notice to the Company shall be addressed to:

              Doubletree Corporation
              410 North 44th Street
              Phoenix, AZ 85008
              Attn: Corporate Secretary


Notice to the Executive shall be addressed to him at the business address 
of the Company where the Executive is employed, with a copy to him at his 
home address as follows:

              Richard M. Kelleher
              5219 North Casa Blanca Dr.
              Paradise Valley, AZ 85253

All such notices shall be deemed effectively given five (5) days after 
the same has been deposited in a post box under the exclusive control of the 
United States Postal Service.

16.  MISCELLANEOUS

No provision of this Agreement may be modified, waived or discharged 
unless such waiver, modification or discharge is agreed to in writing and 
signed by the Executive and such officer of the Company as may be 
specifically designated by the Board.  No waiver by either party hereto at 
any time of any breach by the other party hereto of, or compliance with, any 
condition or provision of this Agreement to be performed by such other party 
shall be deemed a waiver of similar or dissimilar provisions or conditions at 
the same or at any prior or subsequent time.  No agreement or 
representations, oral or otherwise, express or implied, with respect to the 
subject matter hereof have been made by either party which are not expressly 
set forth in this Agreement.  The validity, interpretation, construction and 
performance of this Agreement shall be governed by the laws of the State of 
Delaware.  The invalidity or unenforceability of any provision of this 
Agreement shall not affect the validity or enforceability of any other 
provision of this Agreement, which shall remain in full force and effect.

17.  COUNTERPARTS

This Agreement may be executed in several counterparts, each of which 
shall be deemed to be an original but all of which together will constitute 
one and the same instrument.

18.  ARBITRATION

Any dispute or controversy arising under or in connection with this 
Agreement shall be settled exclusively by arbitration in accordance with the 
rules of the American Arbitration Association 


                                      13

<PAGE>

then in effect.  Judgment may be entered on the arbitrator's award in any 
court having jurisdiction.

19. PAYMENT OF LEGAL FEES

The Company shall pay all reasonable legal fees and expenses incurred by 
the Executive in connection with any arbitration (or other proceeding whether 
or not instituted by the Company or the Executive), relating to the 
interpretation or enforcement of any provision of this Agreement (including 
any action seeking to obtain or enforce any right or benefit provided by this 
Agreement) or in connection with any tax audit or proceeding relating to the 
application of Section 4999 of the Code to any payment or benefit provided by 
the Company.

20. NO RESTRICTIONS ON EMPLOYMENT RIGHTS

Nothing in this Agreement shall confer on the Executive any right to 
continue in the employ of the Company or shall interfere with or restrict in 
any way the rights of the Company, which are hereby expressly reserved, to 
discharge the Executive at any time for any reason whatsoever, with or 
without Cause, subject to the requirements of this Agreement.  Nothing in 
this Agreement shall restrict the right of the Executive to terminate his 
employment with the Company at any time for any reason whatsoever.

21. AFFECT ON EMPLOYMENT AGREEMENT

Any severance payment made to the Executive under this Agreement shall 
supersede and be in lieu of any severance payment to which the Executive may 
become entitled under the Employment Agreement. The occurrence of a Covered 
Termination following the occurrence of more than one Reorganization Event 
after the date hereof shall not entitle the Executive to multiple severance 
payments under this Agreement and/or the Employment Agreement.

IN WITNESS WHEREOF, the parties have executed these  presents as of the 
day and year first above written.


                                  DOUBLETREE CORPORATION

                                  ____________________________________
                                  Name:  David L. Stivers
                                  Title: Senior Vice President
                                         General Counsel and Secretary

                                  EXECUTIVE

                                  ____________________________________
                                  Name:  Richard M. Kelleher


                                      14

<PAGE>

                                                              EXHIBIT 10.7

                         MERGER SEVERANCE AGREEMENT

    THIS MERGER SEVERANCE AGREEMENT (this "Agreement") is made as of this 1st 
day of September, 1997, between PROMUS HOTEL CORPORATION (the "Company") and 
Thomas L. Keltner (the "Executive").

                                  RECITALS

     WHEREAS, the Company considers it essential to the best interest 
of its stockholders to foster the continuous employment of key management 
personnel, and believes that the possibility of a reorganization event of the 
Company and the uncertainty and questions which it may raise among management 
may result in the departure or distraction of management personnel to the 
detriment of the Company and its stockholders; and

     WHEREAS, the Board of Directors has determined that appropriate steps 
should be taken to reinforce and encourage the continued attention and 
dedication of members of the Company's management, including the Executive, 
to their assigned duties without distraction in the face of potentially 
disturbing circumstances arising from the possibility of a reorganization 
event of the Company;

     NOW, THEREFORE, in consideration of the mutual premises set forth below 
and for other good and valuable consideration, in order to induce the 
Executive to remain in the employ of the Company, the Company agrees that the 
Executive shall receive the severance benefits set forth in this agreement 
(this "Agreement") in the event his employment with the Company terminates 
subsequent to a "Reorganization Event" of the Company under the circumstances 
described below.

                                    AGREEMENT

     1.   DEFINITIONS

     The following terms used in this Agreement shall have the 
meanings given below:

     (a)  "ANNUAL BASE SALARY" shall mean the Executive's gross annual salary 
before any deductions, exclusions or any deferrals or contributions under any 
Company plan or program, but excluding bonuses, incentive compensation, 
employee benefits or any other non-salary form of compensation (determined 
without regard to any reduction in Annual Base Salary that occurs after the 
consummation of a Reorganization Event).

     (b)  "BOARD" shall mean the Board of Directors of the Company.

     (c)  "BONUS AMOUNT" shall mean the greater of (i) the dollar amount of 
the annual bonus that would be payable to the Executive under the Company's 
annual bonus plan applicable to the Executive, assuming payment at the target 
level for the Executive's then current salary grade level for the 
then-current full fiscal year (determined without regard to any reduction in 
target bonus percentage that results in "Good Reason" termination), or (ii) 
the dollar amount 


                                       1

<PAGE>


of the bonus paid or payable to the Executive under the Company's annual 
bonus plan for the most recently completed fiscal year under such plan. 
Notwithstanding the foregoing, if the Executive is a participant in the 
Company's Development Bonus Plan (or any successor plan), the "Bonus Amount" 
shall mean the greater of (i) the dollar amount of the annual bonus that 
would be payable at the Executive's then current grade level under the 
Company's Annual Management Bonus Plan (as opposed to the Development Bonus 
Plan), or (ii) the dollar amount of the bonus actually paid to the Executive 
during the most recently completed fiscal year under the Company's 
Development Bonus Plan, subject to a maximum amount equal to the target bonus 
under the Company's Annual Management Bonus Plan at the Executive's salary 
grade level for such plan year.

     (d)  "CODE" shall mean the Internal Revenue Code of 1986, as amended.

     (e)  "COMPANY" shall mean Promus Hotel Corporation, or any successor 
corporation that assumes this Agreement under Section 14 hereof or otherwise 
becomes bound by this Agreement.

     (f)  "COVERED TERMINATION" shall have the meaning given in Section 3 
hereof.

     (g)  "DATE OF TERMINATION" shall mean the effective date of the 
Executive's Covered Termination pursuant to Section 3 hereof.

     (h)  "DISABILITY" shall mean the absence of the Executive from the 
full-time performance of his duties with the Company for six consecutive 
months as a result of incapacity due to physical or mental illness, provided 
the Company has given 30-day advance written notice to the Executive and he 
has not returned to the full-time performance of his duties.

     (i)  "REORGANIZATION EVENT" shall mean the occurrence of any of the 
following after the date hereof:

          (i)  any "person" (as such term is used in Section 13(d) and 14(d) 
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), 
other than an employee benefit plan of the Company, or a trustee or other 
fiduciary holding securities under an employee benefit plan of the Company, 
becomes a "beneficial owner" (as defined in Rule 13d-3 under the Exchange 
Act), directly or indirectly, of 25% or more of the Company's then 
outstanding voting securities carrying the right to vote in elections of 
persons to the Board, regardless of comparative voting power of such voting 
securities, and regardless of whether or not the Board shall have approved 
such Reorganization Event; or

          (ii) during any period of two (2) consecutive years (not including 
any period prior to the execution of this Agreement), individuals who at the 
beginning of such period constitute the Board (the "Incumbent Board") and any 
other new director (other than a director designated by a person who shall 
have entered into an agreement with the Company to effect a transaction 
described in clauses (i) or (iii) of this subsection) whose election by the 
Board or nomination for election by the Company's stockholders was approved 
by a vote of at least two-thirds (2/3) of the directors then still in office 
who either were directors at the beginning of the 


                                      2

<PAGE>

period or whose election or nomination for election was previously so 
approved (each such new director being considered a member of the "Incumbent 
Board"), cease for any reason to constitute a majority thereof; or

          (iii) the holders of securities of the 
Company entitled to vote thereon approve of the following:

            (A)  a merger or consolidation of the Company with any other 
corporation regardless of which entity is the surviving company, other than a 
merger or consolidation which would result in the voting securities of the 
Company carrying the right to vote in elections of persons to the board 
outstanding immediately prior thereto continuing to represent (either by 
remaining outstanding or by being converted into voting securities of the 
surviving entity) at least 66 2/3% of the Company's then-outstanding voting 
securities carrying the right to vote in elections of persons to the board or 
such securities of such surviving entity outstanding immediately after such 
merger or consolidation, or

            (B)  a plan of complete liquidation of the Company or an agreement 
for the sale or disposition by the Company of all or substantially all of the 
Company's assets.

     Notwithstanding the definition of "Reorganization Event" of the Company 
as set forth in this Agreement, the Board shall have full and final 
authority, which shall be exercised in its discretion, to determine 
conclusively whether a Reorganization Event of the Company has occurred, and 
the date of the occurrence of such Reorganization Event and any incidental 
matters relating thereto, with respect to a transaction or series of 
transactions which have resulted or will result in a substantial portion of 
the assets or business of the Company (as determined immediately prior to the 
transaction or series of transactions by the Board in its sole discretion 
which determination shall be final and conclusive) being held by a 
corporation at least 66 2/3% of whose voting securities are held, immediately 
following such transaction or series of transactions, by holders of the 
voting securities of the Company (determined immediately prior to such 
transaction or series of transactions).  The Board may exercise such 
discretionary authority without regard to whether one or more of the 
transactions in such series of transactions would otherwise constitute a 
Reorganization Event of the Company under the definition set forth in this 
Agreement.  It is hereby understood and agreed that the consummation of the 
business combination ("the Merger") contemplated by the Agreement and Plan of 
Merger dated as of September 1, 1997 among Doubletree Corporation, the 
Company and Parent Holding Corp. shall constitute a Reorganization Event for 
purposes of this Agreement.

     2.   TERM OF AGREEMENT

     This Agreement shall commence on the date first written above and shall 
continue in effect though December 31, 1998; provided, however, that 
commencing on January 1, 1999 and each January 1 thereafter, the term of this 
Agreement shall automatically be extended for one additional year unless, not 
later than September 30 of the preceding year, the Company shall have given 
notice that it does not wish to extend this Agreement; and provided further, 
that the Board may terminate this agreement at any time prior to the 
consummation of the business combination contemplated by the above referenced 
Agreement and Plan of Merger (the 


                                      3


<PAGE>


"Merger") if the Board finds that the consummation of the Merger is no longer 
viable or in the best interest of the Company.  Notwithstanding the 
foregoing, no notice of non-renewal given by the Board shall be effective 
with respect to a particular Reorganization Event if given after the 
occurrence of the following events: (i) the Company enters into an agreement 
or letter of intent, the consummation of which would result in such 
Reorganization Event, (ii) any "person" makes a public announcement of its 
intention to take or consider taking actions that would result in such 
Reorganization Event, or (iii) any "person" (as defined above) initiates a 
tender offer which, if consummated, would result in such Reorganization Event 
(it being understood that this sentence shall not apply with respect to any 
unrelated Reorganization Event). If a Reorganization Event of the Company 
shall have occurred during the original or extended term of this Agreement, 
the term of this Agreement shall continue in force and effect until the 
satisfaction of all of the Company's obligations to the Executive as provided 
hereunder.

     3.   COVERED TERMINATION

          (a)  GENERAL.  The Executive shall be treated as having incurred a 
"Covered Termination" hereunder if the Company terminates his employment 
other than for cause, or if the Executive gives notice of voluntary 
termination, within the "Coverage Period" defined below.  The Executive shall 
not be treated as having incurred a Covered Termination if his employment is 
terminated as a result of death or Disability.  For purposes hereof, the 
Coverage  Period shall be a period of two (2) years following the 
consummation of a Reorganization Event provided, however, that if the 
Reorganization Event is a result of the proposed merger (the "Proposed 
Merger") between Doubletree Corporation and Promus Hotel Corporation pursuant 
to the terms of an Agreement of Plan and Merger dated September 1, 1997, the 
Coverage Period shall be the period commencing on the consummation date of 
the Proposed Merger and expiring December 31, 1999.

          (b)  TERMINATION FOR CAUSE. Termination by the Company of the 
Executive's employment for "Cause" shall mean termination as a result of:

               (i)  the Executive engaging in willful gross neglect of his 
duties with the Company, or the Executive's fraud or dishonesty in connection 
with his performance of duties to the Company, in either case which has a 
materially detrimental effect on the business or operations of the Company; or

               (ii) the Executive's conviction by a court of competent 
jurisdiction of any crime (or upon entering a plea of guilty or nolo 
contendere to a charge of any crime) constituting a felony.

     The Date of Termination for a termination for Cause shall be the date 
specified by the Company.


                                      4


<PAGE>


          (c)  TERMINATION BY EXECUTIVE.  The Executive may give notice of 
his intent to terminate his employment for any reason during the Coverage 
Period and it shall be treated as a Covered Termination hereunder.  The 
Executive shall provide the Company with 30-days advance written notice, and 
the Date of Termination shall be the expiration of such 30-day period.

     4.   SEVERANCE PAYMENT

      The amount of the severance payment to be paid to the Executive upon 
Covered Termination shall be the amount determined by multiplying 3.00 times 
the sum of:

          (a)  the Executive's Annual Base Salary as in effect immediately 
prior to the Date of Termination; plus,

          (b)  the Executive's Bonus Amount applicable for the fiscal year in 
which the Date of Termination occurs; plus,

          (c)  a benefit allowance of 25% of the Executive's Annual Base 
Salary as in effect immediately prior to the Date of Termination.

     5.   OTHER SEVERANCE BENEFITS

     In addition to the severance payment provided under Section 4 hereof, 
the Executive shall be entitled to the following benefits and other rights in 
the event of the his Covered Termination:

          (a)  ACCRUED RIGHTS.  The Executive shall be entitled to the 
following payments and benefits in respect of accrued compensation rights 
upon a Covered Termination, in addition to other rights provided under this 
Agreement:

               (i)   payment of any accrued but unpaid Annual Base Salary 
through the Date of Termination and payment of any annual bonus (for any 
completed fiscal year) that is awarded subsequent to the Date of Termination 
by the Company in its sole discretion under the terms of the annual bonus 
plan then in effect.

               (ii)  payment of a pro-rata portion of the Bonus Amount for the 
fiscal year of the Company in which the Covered Termination occurs, based on 
the number of days of such year prior to the Date of Termination;

               (iii)  all benefits and rights accrued under the employee 
benefit plans, fringe benefits programs and payroll practices of the Company 
in accordance with their terms (including, without limitations, employee 
pension, employee welfare, incentive bonus, stock incentive plans, and any 
accrued vacation or sick pay time); and

               (iv)  a payment equal to the forfeited portion of the 
Executive's account balance under the Company's tax qualified deferred 
compensation plan as a result of failure to satisfy vesting requirements due 
to a Covered Termination.


                                      5


<PAGE>


          (b)    OUTPLACEMENT SERVICES. Upon the occurrence of a Covered 
Termination, the Executive shall be provided, at the Company's sole expense, 
with professional outplacement services consistent with the Executive's 
duties or profession and of a type and level customary for persons in his 
position, as selected by the Company, subject to reasonable limitations 
established by the Company on a uniform basis for similarly situated 
executives as to duration and dollar amounts.

          (c)  EMPLOYMENT AGREEMENT. In the event that the Executive's 
termination of employment constitutes a termination without "cause" or for 
"good reason" under the employment agreement between Executive and Promus 
Hotel Corporation (f.k.a. Parent Holding Corp.) dated November ___, 1997 (the 
"Employment Agreement") all outstanding awards of stock options and 
restricted stock that have been granted to the Executive shall continue to 
become vested and exercisable following the Date of Termination at the same 
times and on the same basis as if the Executive had remained employed by the 
Company and, in the case of stock options, shall remain exercisable following 
the vesting thereof until the expiration of the original full term.

     6.   EXCISE TAX REIMBURSEMENT

     In the event it shall be determined that any payment or distribution by 
the Company or any other person or entity to or for the Executive's benefit, 
whether paid or payable or distributed or distributable pursuant to the terms 
of this Agreement or otherwise, or whether prior to or following the Covered 
Termination in connection with, or arising out of, the Executive's employment 
with the Company or a Reorganization Event of the Company (a "Payment") will 
be subject to the tax (the "Excise Tax") imposed by section 4999 of the Code, 
the Company shall pay to the Executive at the time specified in Section 7 
hereof, an additional amount (the "Gross-Up Payment") such that the net 
amount retained by the Executive, after deduction of any Excise Tax on the 
Payments and any federal (and state and local) income tax, employment tax, 
and Excise Tax upon the payment provided for by this paragraph, shall be 
equal to the amount of the Payments.  For purposes of determining whether any 
of the Payments will be subject to the Excise Tax and the amount of such 
Excise Tax the following will apply:

          (a)  any payments or benefits received or to be received by the 
Executive in connection with a Reorganization Event of the Company or his 
termination of employment (whether pursuant to the terms of this Agreement or 
any other plan, arrangement or agreement with the Company, any person whose 
actions result in a Reorganization Event of the Company or any person 
affiliated with the Company or such person) shall be treated as "parachute 
payments" within the meaning of section 280G(b)(2) of the Code, and all 
"excess parachute payments" within the meaning of section 280G(b)(1) shall be 
treated as subject to the Excise Tax, unless in the opinion of tax counsel 
selected by the Company's independent auditors and acceptable to the 
Executive such other payments or benefits (in whole or in part) do not 
constitute parachute payments, or such excess parachute payments (in whole or 
in part) represent reasonable compensation for services actually rendered 
within the meaning of section 280G(b)(4) of the Code in excess of the base 
amount within the meaning of section 280G(b)(3) of the Code, or are otherwise 
not subject to the Excise Tax; and


                                      6


<PAGE>


          (b)  the value of any non-cash benefits or any deferred payment or 
benefit shall be determined by the Company's independent auditors in 
accordance with proposed, temporary or final regulations under Sections 
280G(d)(3) and (4) of the Code or, in the absence of such regulations, in 
accordance with the principles of Section 280G(d)(3) and (4) of the Code.  
For purposes of determining the amount of the Gross-Up Payment, the Executive 
shall be deemed to pay federal income taxes at the highest marginal rate of 
federal income taxation in the calendar year in which the Gross-Up Payment is 
to be made and state and local income taxes at the highest marginal rate of 
taxation in the state and locality of the Executive's residence on the Date 
of Termination, net of the maximum reduction in federal income taxes which 
could be obtained from deduction of such state and local taxes.  In the event 
that the amount of Excise Tax attributable to Payments is subsequently 
determined to be less than the amount taken into account hereunder at the 
time of termination of the Executive's employment, he shall repay to the 
Company at the time that the amount of such reduction in Excise Tax is 
finally determined the portion of the Gross-Up Payment attributable to such 
reduction (plus the portion of the Gross-Up Payment attributable to the 
Excise Tax, employment tax and federal (and state and local) income tax 
imposed on the Gross-Up Payment being repaid by the Executive if such 
repayment results in a reduction in Excise Tax and/or a federal (and state 
and local) income tax deduction) plus interest on the amount of such 
repayment at the rate provided in section 1274(b)(2) (B) of the Code.  In the 
event that the Excise Tax attributable to Payments is determined to exceed 
the amount taken into account hereunder at the time of the termination of the 
Executive's employment (including by reason of any payment the existence or 
amount of which cannot be determined at the time of the Gross-Up Payment), 
the Company shall make an additional gross-up payment in respect of such 
excess (plus any interest payable with respect to such excess) at the time 
that the amount of such excess is finally determined.

      7.   METHOD OF PAYMENT

     The payments provided for in Sections 4, 5 and 6 hereof shall be made in 
a cash lump-sum payment, net of any required tax withholding, upon the later 
of (i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 10 hereof; provided, however, that 
if the amounts of such payments cannot be finally determined on or before 
such day, the Company shall pay on such day an estimate, as determined in 
good faith by the Company, of the minimum amount of such payments.  Any 
payment required under Sections 4, 5 or 6 or any other provision of this 
Agreement that is not made in a timely manner shall bear interest at a rate 
equal to one-hundred twenty (120) percent of the monthly compounded 
applicable federal rate, as in effect under Section 1274(d) of the Code for 
the month in which the payment is required to be made.  In the event that the 
amount of the estimated payments exceeds the amount subsequently determined 
to have been due, such excess shall constitute a loan by the Company payable 
on the fifth day after demand by the Company with interest at the rate 
provided under Section 1274(d) of the Code until paid.


                                      7


<PAGE>


     8.   RELOCATION EXPENSES

     The Executive shall be entitled to a reimbursement payment from the 
Company equal to his reasonable moving expenses (determined in accordance 
with Company's relocation policy) incurred in connection with the Executive's 
written acceptance of a position with the Company requiring his relocation to 
a metropolitan area, other than the metropolitan area where his office is 
located at the time of the Reorganization Event of the Company. The Company 
shall pay the Executive an additional payment in an amount such that the net 
amount retained by the Executive after deduction for any federal, state, and 
local income tax, employment tax and any excise tax on the reimbursement 
payment shall equal the amount of the reimbursement payment.

      9.   NO MITIGATION OR OFFSET

      The Executive shall not be required to mitigate the amount of any 
severance payment or benefit provided under this Agreement by seeking other 
employment or otherwise.  The amount of any payment or benefit to which the 
Executive becomes entitled hereunder shall not be reduced by any compensation 
earned by the Executive as the result of employment by another employer, by 
retirement benefits, nor by offset against any amount claimed to be owed to 
the Company by reason of a claimed breach by the Executive of his obligations 
under Sections 11 or 12 hereof or otherwise (except that offset shall apply 
as specifically provided in Section 21(a) hereof concerning other severance 
payments).

      10.  RELEASE OF CLAIMS

      As conditions of Executive's entitlement to the severance payments and 
benefits provided by this Agreement, the Executive shall be required to 
execute and honor the terms of a waiver and release of claims against the 
Company substantially in the form attached hereto as Exhibit A (as may be 
modified consistent with the purposes of such waiver and release to reflect 
changes in law following the date hereof).

      11.  RESTRICTION ON CONDUCT OF EXECUTIVE

          (a)  GENERAL.  The Executive and the Company understand and agree 
that the purpose of the provisions of this Section 11 is to protect 
legitimate business interests of the Company, as more fully described below, 
and is not intended to impair or infringe upon the Executive's right to work, 
earn a living, or acquire and possess property from the fruits of his labor.  
The Executive hereby acknowledges that the post-employment restrictions set 
forth in this Section 11 are reasonable and that they do not, and will not, 
unduly impair his ability to earn a living after the termination of his 
employment with the Company.  Therefore, subject to the limitations of 
reasonableness imposed by law upon restrictions set forth herein, the 
Executive shall be subject to the restrictions set forth in this Section 11.

          (b)  DEFINITIONS.  The following capitalized terms used in this 
Section 11 shall have the meanings assigned to them below, which definitions 
shall apply to both the singular and the plural forms of such terms:


                                      8


<PAGE>


     "CONFIDENTIAL INFORMATION" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.

     "DETERMINATION DATE" means the date of termination of the Executive's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Executive.

     "PERSON" means any individual or any corporation, partnership, joint 
venture, association or other entity or enterprise.

     "PRINCIPAL OR REPRESENTATIVE" means a principal, owner, partner, 
shareholder, joint venturer, member, trustee, director, officer, manager, 
employee, agent, representative or consultant.

     "PROTECTED EMPLOYEES" means employees of the Company or its affiliated 
companies who were employed by the Company or its affiliated companies at any 
time within six (6) months prior to the Determination Date.

     "RESTRICTED PERIOD" means the period of the Executive's employment with 
the Company plus a period extending two (2) years from the date of 
termination of employment.

     "RESTRICTIVE COVENANTS" means the restrictive covenants contained in 
Section 11(c) hereof.

          (c)  RESTRICTIVE COVENANTS.

               (i)  RESTRICTION ON DISCLOSURE AND USE OF CONFIDENTIAL 
INFORMATION.  The Executive understands and agrees that the Confidential 
Information constitutes a valuable asset of the Company and its affiliated 
entities, and may not be converted to the Executive's own use.  Accordingly, 
the Executive hereby agrees that the Executive shall not, directly or 
indirectly, at any time during the Restricted Period reveal, divulge or 
disclose to any Person not expressly authorized by the Company any 
Confidential Information, and the Executive shall not, directly or 
indirectly, at any time during the Restricted Period use or make use of any 
Confidential Information in connection with any business activity other than 
that of the Company.  The parties acknowledge and agree that this Agreement 
is not intended to, and does not, alter either the Company's rights or the 
Executive's obligations under any state or federal statutory or common law 
regarding trade secrets and unfair trade practices.


                                      9


<PAGE>


               (ii) NONSOLICITATION OF PROTECTED EMPLOYEES.  The Executive 
understands and agrees that the relationship between the Company and each of 
its Protected Employees constitutes a valuable asset of the Company and may 
not be converted to the Executive's own use.  Accordingly, the Executive 
hereby agrees that during the Restricted Period the Executive shall not 
directly or indirectly on the Executive's own behalf or as a Principal or 
Representative of any Person solicit any Protected Employee to terminate his 
or her employment with the Company.

               (iii)     NONINTERFERENCE WITH COMPANY OPPORTUNITIES.  The 
Executive understands and agrees that all hotel development opportunities 
with which he is involved during his employment with the Company constitute 
valuable assets of the Company and its affiliated entities, and may not be 
converted to Executive's own use.  Accordingly, the Executive hereby agrees 
that during the Restricted Period the Executive shall not directly or 
indirectly on the Executive's own behalf or as a Principal or Representative 
of any Person, interfere with, solicit, pursue, or in any way make use of any 
such hotel development opportunities.

         (d)  EXCEPTIONS FROM DISCLOSURE RESTRICTIONS.  Anything herein to 
the contrary notwithstanding, the Executive shall not be restricted from 
disclosing or using Confidential Information that: (i) is or becomes 
generally available to the public other than as a result of an unauthorized 
disclosure by the Executive or his agent; (ii) becomes available to the 
Executive in a manner that is not in contravention of applicable law from a 
source (other than the Company or its affiliated entities or one of its or 
their officers, employees, agents or representative) that is not bound by a 
confidential relationship with the Company or its affiliated entities or by a 
confidentiality or other similar agreement; (iii) was known to the Executive 
on a non-confidential basis and not in contravention of applicable law or a 
confidentiality or other similar agreement before its disclosure to the 
Executive by the Company or its affiliated entities or one of its or their 
officers, employees, agents or representatives; or (iv) is required to be 
disclosed by law, court order or other legal process; provided, however, that 
in the event disclosure is required by law, the Executive shall provide the 
Company with prompt notice of such requirement so that the Company may seek 
an appropriate protective order prior to any such required disclosure by the 
Executive.

         (e)  ENFORCEMENT OF THE RESTRICTIVE COVENANTS.

              (i)  RIGHTS AND REMEDIES UPON BREACH.  In the event the 
Executive breaches, or threatens to commit a breach of, any of the provisions 
of the Restrictive Covenants, the Company shall have the right and remedy to 
enjoin, preliminarily and permanently, the Executive from violating or 
threatening to violate the Restrictive Covenants and to have the Restrictive 
Covenants specifically enforced by any court of competent jurisdiction, it 
being agreed that any breach or threatened breach of the Restrictive 
Covenants would cause irreparable injury to the Company and that money 
damages would not provide an adequate remedy to the Company.  The rights 
referred to in the preceding sentence shall be independent of any others and 
severally enforceable, and shall be in addition to, and not in lieu of, any 
other rights and remedies available to the Company at law or in equity.


                                      10


<PAGE>


              (ii) SEVERABILITY OF COVENANTS.  The Executive acknowledges and 
agrees that the Restrictive Covenants are reasonable and valid in time and 
space and in all other respects.  If any court determines that any 
Restrictive Covenants, or any part thereof, is invalid or unenforceable, the 
remainder of the Restrictive Covenants shall not thereby be affected and 
shall be given full effect, without regard to the invalid portions. 

     12.  COOPERATION IN FUTURE MATTERS

     The Executive hereby agrees that, for a period of three (3) years 
following his Date of Termination, he shall cooperate with the Company's 
reasonable requests relating to matters that pertain to the Executive's 
employment by the Company, including, without limitation, providing 
information or limited consultation as to such matters, participating in 
legal proceedings, investigations or audits on behalf of the Company, or 
otherwise making himself reasonably available to the Company for other 
related purposes.  Any such cooperation shall be performed at times scheduled 
taking into consideration the Executive's other commitments, and the 
Executive shall be compensated at a reasonable hourly or per diem rate to be 
agreed by the parties to the extent such cooperation is required on more than 
an occasional and limited basis.  The Executive shall not be required to 
perform such cooperation to the extent it conflicts with any requirements of 
exclusivity of service for another employer or otherwise, nor in any manner 
that in the good faith belief of the Executive would conflict with his rights 
under or ability to enforce this Agreement.

     13.  INDEMNIFICATION

          (a)  Following the Date of Termination, the Company agrees that it 
will, indemnify and hold harmless the Executive, against any costs or 
expenses (including attorneys' fees), judgments, fines, losses, claims, 
damages, liabilities or amounts paid in settlement incurred in connection 
with any claim, action, suit, proceeding or investigation, whether civil, 
criminal, administrative or investigative, arising out of or pertaining to 
matters existing or occurring at or prior to the Date of Termination, whether 
asserted or claimed prior to, at or after the Date of Termination, to the 
fullest extent that the Company would have been permitted under Delaware law 
and its certificate of incorporation or bylaws in effect on the date hereof 
to indemnify the Executive (and the Company shall also advance expenses as 
incurred to the fullest extent permitted under applicable law, provided the 
Executive provides an undertaking to repay advances if it is ultimately 
determined that the Executive is not entitled to indemnification).

          (b)  For a period of six years after the Date of Termination, the 
Company shall maintain (to the extent available in the market) in effect a 
director's and officer's liability insurance policy covering with coverage in 
amount and scope at least as favorable as the Company's existing coverage on 
the Date of Termination; provided that in no event shall the Company be 
required to expend in the aggregate in excess of 200% of the annual premium 
paid by the Company for such coverage as of the Date of Termination; and if 
such premium would at any time exceed 200% of the such amount, then the 
Company shall maintain insurance policies which provide the maximum and best 
coverage available at an annual premium equal to 200% of such amount.


                                      11


<PAGE>


         (c)  The provisions of this Section 13 are intended to be an 
addition to the rights otherwise available to the Executive by law, charter, 
statute, bylaw or separate agreement between the Company and the Executive.  
The Company shall continue to honor any indemnification agreement between the 
Company and the Executive entered into prior to the Date of Termination in 
accordance with the terms thereof.

    14.  SUCCESSORS, BINDING AGREEMENT.

          (a)  The Company will require any successor (whether direct or 
indirect, by purchase, merger, consolidation or otherwise) to all or 
substantially all of the business and/or assets of the Company to expressly 
assume and agree to perform this Agreement in the same manner and to the same 
extent that the Company would be required to perform it if no such succession 
had taken place.  Failure of the Company to obtain such assumption and 
agreement prior to the effectiveness of any such succession shall be a breach 
of this Agreement and shall entitle the Executive to compensation from the 
Company in the same amount as a Covered Termination following a 
Reorganization Event of the Company, except that for purposes of implementing 
the foregoing, the date on which any such succession becomes effective shall 
be deemed the Date of Termination.  As used in this Agreement, "Company" 
shall mean the Company as herein before defined and any successor to its 
business and/or assets as aforesaid which assumes and agrees to perform this 
Agreement by operation of law, or otherwise.

          (b)  This Agreement shall inure to the benefit of and be 
enforceable by the Executive's personal or legal representatives, executors, 
administrators, successors, heirs, distributees, devises and legatees.  If 
the Executive should die while any amount remains payable to him hereunder, 
all such amounts, unless otherwise provided herein, shall be paid in 
accordance with the terms of this Agreement to the Executive's devisee, 
legatee or other designee or, if there is no such designee, to the 
Executive's estate.

     15.  NOTICE

     Any notice required or permitted to be given by this Agreement shall be 
effective only if in writing, delivered personally against receipt therefor 
or mailed by certified or registered mail, return receipt requested, to the 
parties at the addresses hereinafter set forth, or at such other places that 
either party may designate by notice to the other.

     Notice to the Company shall be addressed to:

         Promus Hotel Corporation
         755 Crossover Lane
         Memphis, Tennessee  38117
         Attention:  General Counsel

     Notice to the Executive shall be addressed to him at the business 
address of the Company where the Executive is employed, with a copy to him at 
his home address as follows:


                                      12


<PAGE>


    All such notices shall be deemed effectively given five (5) days after 
the same has been deposited in a post box under the exclusive control of the 
United States Postal Service.

     16.  MISCELLANEOUS

     No provision of this Agreement may be modified, waived or discharged 
unless such waiver, modification or discharge is agreed to in writing and 
signed by the Executive and such officer of the Company as may be 
specifically designated by the Board.  No waiver by either party hereto at 
any time of any breach by the other party hereto of, or compliance with, any 
condition or provision of this Agreement to be performed by such other party 
shall be deemed a waiver of similar or dissimilar provisions or conditions at 
the same or at any prior or subsequent time.  No agreement or 
representations, oral or otherwise, express or implied, with respect to the 
subject matter hereof have been made by either party which are not expressly 
set forth in this Agreement.  The validity, interpretation, construction and 
performance of this Agreement shall be governed by the laws of the State of 
Delaware.  The invalidity or unenforceability of any provision of this 
Agreement shall not affect the validity or enforceability of any other 
provision of this Agreement, which shall remain in full force and effect.

     17.  COUNTERPARTS

     This Agreement may be executed in several counterparts, each of which 
shall be deemed to be an original but all of which together will constitute 
one and the same instrument.

     18.  ARBITRATION

     Any dispute or controversy arising under or in connection with this 
Agreement shall be settled exclusively by arbitration in Memphis, Tennessee 
accordance with the rules of the American Arbitration Association then in 
effect.  Judgment may be entered on the arbitrator's award in any court 
having jurisdiction.

     19.  PAYMENT OF LEGAL FEES

    The Company shall pay all reasonable legal fees and expenses incurred by 
the Executive in connection with any arbitration (or other proceeding whether 
or not instituted by the Company or the Executive), relating to the 
interpretation or enforcement of any provision of this Agreement (including 
any action seeking to obtain or enforce any right or benefit provided by this 
Agreement) or in connection with any tax audit or proceeding relating to the 
application of Section 4999 of the Code to any payment or benefit provided by 
the Company.

     20.  NO RESTRICTIONS ON EMPLOYMENT RIGHTS

     Nothing in this Agreement shall confer on the Executive any right to 
continue in the employ of the Company or shall interfere with or restrict in 
any way the rights of the Company, which are hereby expressly reserved, to 
discharge the Executive at any time for any reason whatsoever, with or 
without Cause, subject to the requirements of this Agreement.  Nothing in 


                                      13


<PAGE>


this Agreement shall restrict the right of the Executive to terminate his 
employment with the Company at any time for any reason whatsoever.

     21.  OTHER AGREEMENTS

     This Agreement is not intended to, and shall not, in any way supersede, 
amend or affect the Executive's Severance Agreement, dated as of June 30, 
1995 with the Company (the "Existing Severance Agreement"), as the Existing 
Severance Agreement is being amended concurrently herewith.  However, in no 
event shall the Executive receive payments or other benefits under both the 
Existing Severance Agreement and this Agreement.  In the event that the 
Executive becomes entitled to receive severance payment or other benefits 
under both the Existing Severance Agreement and under this Agreement, the 
Executive may elect which agreement shall apply for all purposes, including 
payments and benefits (but, e.g., may not elect one particular benefit under 
one agreement and another benefit under the other agreement) by filing a 
written election with the Company at any time before the Executive receives 
his first severance payment under either of such agreements.

     22.  HOSTILE TRANSACTION PROVISION

          Notwithstanding anything elsewhere in this Agreement to the contrary:

    (a)  In the event of consummation of a Hostile Transaction, the 
provisions of Section 11 hereof and Section 12 hereof shall not be applicable 
to the Executive.

    (b)  For purposes, hereof, a "Hostile Transaction" shall be any
Reorganization Event which has, at any time prior to the consummation thereof,
been designated such by a resolution of the incumbent Board.













                                      14


<PAGE>


    IN WITNESS WHEREOF, the parties have executed these presents as of the day
and year first above written.



                             PROMUS HOTEL CORPORATION

                             _____________________________________
                             Name:   Ralph B. Lake
                             Title:  Secretary and General Counsel


                             EXECUTIVE

                             _____________________________________
                             Name:  Thomas L. Keltner












                                      15


<PAGE>

                        SEVERANCE AGREEMENT


THIS SEVERANCE AGREEMENT (this "Agreement") is made as of this ____ day of 
November, 1997, between DOUBLETREE CORPORATION (the "Company") and WILLIAM L. 
PEROCCHI (the "Executive").
    
    
                              RECITALS
    
WHEREAS, the Company considers it essential to the best interest of its 
stockholders to foster the continuous employment of key management personnel, 
and believes that the possibility of a reorganization event of the Company 
and the uncertainty and questions which it may raise among management may 
result in the departure or distraction of management personnel to the 
detriment of the Company and its stockholders; and

WHEREAS, the Board of Directors has determined that appropriate steps should 
be taken to reinforce and encourage the continued attention and dedication of 
members of the Company's management, including the Executive, to their 
assigned duties without distraction in the face of potentially disturbing 
circumstances arising from the possibility of a reorganization event of the 
Company;

NOW, THEREFORE, in consideration of the mutual premises set forth below and 
for other good and valuable consideration, in order to induce the Executive 
to remain in the employ of the Company, the Company agrees that the Executive 
shall receive the severance benefits set forth in this agreement ("this 
Agreement") in the event his employment with the Company terminates 
subsequent to a "Reorganization Event" of the Company under the circumstances 
described below.

                                  AGREEMENT

1. DEFINITIONS 

The following terms used in this Agreement shall have the meanings given below:


                                       1

<PAGE>

(a) "Annual Base Salary" shall mean the Executive's gross annual salary before
any deductions, exclusions or any deferrals or contributions under any Company
plan or program, but excluding bonuses, incentive compensation, employee
benefits or any other non-salary form of compensation.

(b) "Board" shall mean the Board of Directors of the Company.

(c) "Bonus Amount" shall mean the greater of (i) the dollar amount of the annual
bonus that would be payable to the Executive under the Company's annual bonus
plan applicable to the Executive, assuming payment at the Executive's target
level for the then-current full fiscal year or (ii) the dollar amount of the
bonus paid or payable to the Executive under the Company's annual bonus plan for
the most recently completed fiscal year under such plan. For the purposes 
hereof, the "Bonus Amount" shall not include any special bonuses paid outside 
of the Company's generally applicable annual bonus plan.

(d) "Code" shall mean the Internal Revenue Code of 1986, as amended.

(e) "Company" shall mean Doubletree Corporation, or any successor corporation
that assumes this Agreement under Section 14 hereof or otherwise becomes bound
by this Agreement.

(f) "Covered Termination" shall have the meaning given in Section 3 hereof. 

(g) "Date of Termination" shall mean the effective date of the Executive's
Covered Termination pursuant to Section 3 hereof.

(h) "Disability" shall mean the absence of the Executive from the full-time
performance of his duties with the Company for six consecutive months as a
result of incapacity due to physical or mental illness, provided the Company has
given 30-day advance written notice to the Executive and he has not returned to
the full-time performance of his duties.

(i) "Reorganization Event" shall mean the occurrence of any of the following
after the date hereof:

    (i) any "person" (as such term is used in Section 13(d) and 14(d) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), other than an
employee benefit plan of the Company, or a trustee or other fiduciary holding
securities under an employee benefit plan of the Company, becomes a "beneficial
owner" (as defined in rule 13d-3 under the Exchange Act), directly or
indirectly, of 25% or more of the Company's then outstanding voting securities
carrying the right to vote in elections of persons to the Board, regardless of
comparative voting power of such voting securities, and regardless of whether or
not the Board shall have approved such Reorganization Event; PROVIDED, HOWEVER,
that an acquisition after the date hereof by the General Electric Pension Trust
or its affiliates, by Richard Ferris, or by Peter Ueberroth of 25% or more of
the Company's then-outstanding securities shall not be deemed a "Reorganization
Event" of the Company; or

     (ii) during any period of two (2) consecutive years (not including any 
period prior to the execution of this Agreement), individuals who at the 
beginning of such period constitute the


                                       2

<PAGE>

Board (the "Incumbent Board") and any other new director (other than a 
director designated by a person who shall have entered into an agreement with 
the Company to effect a transaction described in clauses (i) or (iii) of this 
subsection) whose election by the Board or nomination for election by the 
Company's stockholders was approved by a vote of at least two-thirds (2/3) of 
the directors then still in office who either were directors at the beginning 
of the period or whose election or nomination for election was previously so 
approved (each such new director being considered a member of the "Incumbent 
Board"), cease for any reason to constitute a majority thereof; or

    (iii) the holders of securities of the Company entitled to vote thereon
approve of the following:

(A) a merger or consolidation of the Company with any other corporation 
regardless of which entity is the surviving company, other than a merger or 
consolidation which would result in the voting securities of the Company 
carrying the right to vote in elections of persons to the Board outstanding 
immediately prior thereto continuing to represent (either by remaining 
outstanding or by being converted into voting securities of the surviving 
entity) at least 66 2/3% of the Company's then-outstanding voting securities 
carrying the right to vote in elections of persons to the Board or such 
securities of such surviving entity outstanding immediately after such merger 
or consolidation, or
         
(B) a plan of complete liquidation of the Company or an agreement for the 
sale or disposition by the Company of all or substantially all of the 
Company's assets.

Notwithstanding the definition of "Reorganization Event" of the Company as set
forth in this Agreement, the Board shall have full and final authority, which
shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the occurrence
of such Reorganization Event and any incidental matters relating thereto, with
respect to a transaction or series of transactions which have resulted or will
result in a substantial portion of the assets or business of the Company (as
determined immediately prior to the transaction or series of transactions by the
Board in its sole discretion which determination shall be final and conclusive)
being held by a corporation at least 66 2/3% of whose voting securities are
held, immediately following such transaction or series of transactions, by
holders of the voting securities of the Company (determined immediately prior to
such transaction or series of transactions).  The Board may exercise such
discretionary authority without regard to whether one or more of the
transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth in this
Agreement.  It is hereby understood and agreed that the consummation of the
business combination contemplated by the Agreement and Plan of Merger dated as
of September 1, 1997 among Doubletree Corporation, Promus Hotel Corporation and
Parent Holding Corp. shall constitute a Reorganization Event for purposes of
this Agreement.

2. TERM OF AGREEMENT  


                                       3

<PAGE>

This Agreement shall commence on the date first written above and shall 
continue in effect though December 31, 1998; PROVIDED, HOWEVER, that 
commencing on January 1, 1999 and each January 1 thereafter, the term of this 
Agreement shall automatically be extended for one additional year unless, not 
later than September 30 of the preceding year, the Company shall have given 
notice that it does not wish to extend this Agreement.  Notwithstanding the 
foregoing, no notice of non-renewal given by the Board shall be effective 
with respect to a particular Reorganization Event if given after the 
occurrence of the following events: (i) the Company enters into an agreement 
or letter of intent, the consummation of which would result in such 
Reorganization Event, (ii) any "person" makes a public announcement of its 
intention to take or consider taking actions that would result in such 
Reorganization Event, or (iii) any "person" (as defined above) initiates a 
tender offer which, if consummated, would result in such Reorganization Event 
(it being understood that this sentence shall not apply with respect to any 
unrelated Reorganization Event).  If a Reorganization Event of the Company 
shall have occurred during the original or extended term of this Agreement, 
the term of this Agreement shall continue in force and effect until the 
satisfaction of all of the Company's obligations to the Executive as provided 
hereunder. For purposes hereof, the proposed merger (the "Proposed Merger") 
between Doubletree Corporation and Promus Hotel Corporation pursuant to the 
terms of an Agreement of Plan and Merger dated September 1, 1997 shall 
constitute a Reorganization Event.
     
3.  COVERED TERMINATION 

(a) General. The Executive shall be treated as having incurred a "Covered 
Termination" hereunder if, within the "Coverage Period" (defined below), the 
employment of the Executive is terminated either (1) by the Company other 
than for Cause or (2) by the Executive for any reason.  The Executive shall 
not be treated as having incurred a Covered Termination if his employment is 
terminated as a result of death or Disability.  For purposes hereof, the 
Coverage Period shall be a period of two (2) years following the consummation 
of a Reorganization Event; PROVIDED, HOWEVER, that if the Reorganization 
Event is a result of the Proposed Merger, the Coverage Period 
shall be the period commencing on the consummation date of the Proposed 
Merger and expiring on the later of (i) the second anniversary of such 
consummation date or (ii) the date as of which Richard M. Kelleher becomes the 
Chairman of the Board and Chief Executive Officer of the Parent Holding Corp. 
pursuant to the provisions of the employment agreement between Richard M. 
Kelleher and the Parent Holding Corp. to be entered into in connection with 
the Proposed Merger (NOTE that, as described below, the Executive must give 
30-days advance written notice of termination by the Executive, thus 
effectively requiring that such notice be given no later than 30 days prior 
to the expiration of the Coverage Period described above (in order for the 
Date of Termination to occur prior to the expiration of such period).
    
(b)  Termination for Cause. Termination by the Company of the Executive's
employment for "Cause" shall mean termination as a result of: 

    (i) the Executive engaging in willful gross neglect of his duties with the
Company, or the Executive's fraud or dishonesty in connection with his
performance of duties to the Company, in either case which has a materially
detrimental effect on the business or operations of the Company; or 

    (ii) the Executive's conviction by a court of competent jurisdiction of any
crime (or upon entering a plea of guilty or nolo contendere to a charge of any
crime) constituting a felony;


                                       4

<PAGE>

The Date of Termination for a termination for Cause shall be the date specified
by the Company.               

     (c) Termination by Executive. The Executive may terminate his employment 
for any reason during the Coverage Period and it shall be treated as a 
Covered Termination hereunder.  The Executive shall provide the Company with 
30-day advance written notice of such termination. Such notice must be given 
not later than the date that is 30 days prior to the expiration of the 
Coverage Period described above. The Date of Termination 
for such a termination shall be the expiration of such 30-day notice period.  
   
4. SEVERANCE PAYMENT  

The amount of the severance payment to be paid to the Executive upon Covered
Termination shall be the amount determined by multiplying 3.00 times the sum of:

(a) the Executive's Annual Base Salary as in effect immediately prior to the
Date of Termination; plus, 

(b) the Executive's Bonus Amount applicable for the fiscal year in which the
Date of Termination occurs; plus, 

(c) a benefit allowance of 25% of the Executive's Annual Base Salary as in
effect immediately prior to the Date of Termination.

5. OTHER SEVERANCE BENEFITS

In addition to the severance payment provided under Section 4 hereof, the
Executive shall be entitled to the following benefits and other rights in the
event of his Covered Termination:

(a) Accrued Rights.  The Executive shall be entitled to the following 
payments and benefits in respect of accrued compensation rights upon a 
Covered Termination, in addition to other rights provided under this 
Agreement: 

     (i) payment of any accrued but unpaid Annual Base Salary and annual 
bonus (for any completed fiscal year) through the Date of Termination; 

     (ii) payment of a pro-rata portion of the Bonus Amount for the fiscal 
year of the Company in which the Covered Termination occurs, based on the 
number of days of such year prior to the Date of Termination;
 
    (iii) all benefits and rights accrued under the employee benefit plans, 
fringe benefits programs and payroll practices of the Company in accordance 
with their terms (including, without limitations, employee pension, employee 
welfare, incentive bonus, stock incentive plans, and any accrued vacation or 
sick pay time); 


                                  5

<PAGE>

     (iv) a payment equal to the forfeited portion of the account balance of 
the Executive under the Company's tax-qualified and non-qualified pension and 
deferred compensation plans as a result of failure to satisfy vesting 
requirements due to the Covered Termination; and

     (v) payment of the Executive's benefits pursuant to the terms of the 
Doubletree Hotels Corporation Supplemental Executive Retirement Plan (the 
"SERP"), which, for the purposes thereof, the Company acknowledges that the 
Proposed Merger shall constitute a "Change of Control" (as defined therein), 
and which is attached as Exhibit A hereto.

(b) Outplacement Services. Upon the occurrence of a Covered Termination, the 
Executive shall be provided, at the Company's sole expense, with professional 
outplacement services consistent with the Executive's duties or profession 
and of a type and level customary for persons in his position, as selected by 
the Company, subject to reasonable limitations established by the Company on 
a uniform basis for similarly situated executives as to duration and dollar 
amounts.

(c) Equity Rights.  In the event that the Executive's termination of 
employment constitutes a termination without "Cause" or a resignation for 
"Good Reason", as such terms are defined in the employment agreement entered 
into between the Executive and Promus Hotel Corporation (f.k.a. Parent 
Holding Corp.) dated in November 1997 in connection with the Proposed Merger 
(the "Employment Agreement"), all outstanding awards of stock options and 
restricted stock that have been granted to the Executive shall continue to 
become vested and exercisable following the Date of Termination at the same 
times and on the same basis as if the Executive had remained employed by the 
Company and, in the case of stock options, shall remain exercisable following 
the vesting thereof until the expiration of the original full term.  NOTE that,
pursuant to Section 11.02(d) hereof, the contemplated relocation of the 
Executive's offices from Phoenix, Arizona to Memphis, Tennessee in connection 
with the Proposed Merger will constitute a Good Reason hereunder.

6. EXCISE TAX REIMBURSEMENT

In the event it shall be determined that any payment or distribution by the 
Company or any other person or entity to or for the Executive's benefit, 
whether paid or payable or distributed or distributable pursuant to the terms 
of this Agreement or otherwise, or whether prior to or following the Covered 
Termination in connection with, or arising out of, the Executive's employment 
with the Company or a Reorganization Event of the Company (a "Payment") will 
be subject to the tax (the "Excise Tax") imposed by section 4999 of the Code, 
the Company shall pay to the Executive at the time specified in Section 7 
hereof, below, an additional amount (the "Gross-Up Payment") such that the 
net amount retained by the Executive, after deduction of any Excise Tax on 
the Payments and any federal (and state and local) income tax, employment 
tax, and Excise Tax upon the payment provided for by this paragraph, shall be 
equal to the amount of the Payments.  For purposes of determining whether any 
of the Payments will be subject to the Excise Tax and the amount of such 
Excise Tax the following will apply: 
     
(a) any payments or benefits received or to be received by the Executive in 
connection with a Reorganization Event of the Company or his termination of 
employment (whether pursuant to the terms of this Agreement or any other 
plan, arrangement or agreement with the Company, any person whose actions 
result in a Reorganization Event of the Company or any person affiliated with 
the Company or such person) shall be treated as "parachute payments" within 
the meaning of section 280G(b)(2) of the Code, and all "excess parachute 
payments" within the meaning of section 280G(b)(1) shall be treated as 
subject to the Excise Tax, unless in the opinion of tax


                                       6

<PAGE>

counsel selected by the Company's independent auditors and acceptable to the 
Executive such other payments or benefits (in whole or in part) do not 
constitute parachute payments, or such excess parachute payments (in whole or 
in part) represent reasonable compensation for services actually rendered 
within the meaning of section 280G(b)(4) of the Code in excess of the base 
amount within the meaning of section 280G(b)(3) of the Code, or are otherwise 
not subject to the Excise Tax; and
     
(b) the value of any non-cash benefits or any deferred payment or benefit 
shall be determined by the Company's independent auditors in accordance with 
proposed, temporary or final regulations under Sections 280G(d)(3) and (4) of 
the Code or, in the absence of such regulations, in accordance with the 
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of 
determining the amount of the Gross-Up Payment, the Executive shall be deemed 
to pay federal income taxes at the highest marginal rate of federal income 
taxation in the calendar year in which the Gross-Up Payment is to be made and 
state and local income taxes at the highest marginal rate of taxation in the 
state and locality of the Executive's residence on the Date of Termination, 
net of the maximum reduction in federal income taxes which could be obtained 
from deduction of such state and local taxes.  In the event that the amount 
of Excise Tax attributable to Payments is subsequently determined to be less 
than the amount taken into account hereunder at the time of termination of 
the Executive's employment, he shall repay to the Company at the time that 
the amount of such reduction in Excise Tax is finally determined the portion 
of the Gross-Up Payment attributable to such reduction (plus the portion of 
the Gross-Up Payment attributable to the Excise Tax, employment tax and 
federal (and state and local) income tax imposed on the Gross-Up Payment 
being repaid by the Executive if such repayment results in a reduction in 
Excise Tax and/or a federal (and state and local) income tax deduction) plus 
interest on the amount of such repayment at the rate provided in section 
1274(b)(2) (B) of the Code.  In the event that the Excise Tax attributable to 
Payments is determined to exceed the amount taken into account hereunder at 
the time of the termination of the Executive's employment (including by 
reason of any payment the existence or amount of which cannot be determined 
at the time of the Gross-Up Payment), the Company shall make an additional 
gross-up payment in respect of such excess (plus any interest payable with 
respect to such excess) at the time that the amount of such excess is finally 
determined.  

7. METHOD OF PAYMENT

The payments provided for in Sections 4, 5 and 6 hereof shall be made in a 
cash lump-sum payment, net of any required tax withholding, upon the later of 
(i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 10 hereof.  Any payment required 
under Sections 4, 5 or 6 or any other provision of this Agreement that is not 
made in a timely manner shall bear interest at a rate equal to one-hundred 
twenty (120) percent of the monthly compounded applicable federal rate, as in 
effect under Section 1274(d) of the Code for the month in which the payment 
is required to be made.

8. RELOCATION EXPENSES  


                                       7

<PAGE>

The Executive shall be entitled to a reimbursement payment from the Company 
equal to his reasonable moving expenses (determined in accordance with 
Company's relocation policy), as well as a payment to reimburse the Executive 
for the loss of equity upon the sale of his existing principal residence 
(plus an additional payment to make the Executive whole on an after-tax basis 
for the federal, state and local tax consequences of such payment), incurred 
in connection with the Executive's written acceptance of a position with the 
Company requiring his relocation to a metropolitan area, other than the 
metropolitan area where his office is located at the time of the 
Reorganization Event of the Company.  The Company shall pay the Executive an 
additional payment in an amount such that the net amount retained by the 
Executive after deduction for any federal, state, and local income tax, 
employment tax and any excise tax on the reimbursement payment shall equal 
the amount of the reimbursement payment.  

9. NO MITIGATION OR OFFSET

The Executive shall not be required to mitigate the amount of any severance 
payment or benefit provided under this Agreement by seeking other employment 
or otherwise.  The amount of any payment or benefit to which the Executive 
becomes entitled hereunder shall not be reduced by any compensation earned by 
the Executive as the result of employment by another employer, by retirement 
benefits, nor by offset against any amount claimed to be owed to the Company 
by reason of a claimed breach by the Executive of his obligations under 
Sections 11 or 12 hereof or otherwise. 

10. RELEASE OF CLAIMS

As conditions of Executive's entitlement to the severance payments and 
benefits provided by this Agreement, the Executive shall be required to 
execute and honor the terms of a waiver and release of claims against the 
Company substantially in the form attached hereto as Exhibit B (as may be 
modified consistent with the purposes of such waiver and release to reflect 
changes in law following the date hereof).  

11. RESTRICTION ON CONDUCT OF EXECUTIVE

(a)   General.  The Executive and the Company understand and agree that the 
purpose of the provisions of this Section 11 is to protect legitimate 
business interests of the Company, as more fully described below, and is not 
intended to impair or infringe upon the Executive's right to work, earn a 
living, or acquire and possess property from the fruits of his labor.  The 
Executive hereby acknowledges that the post-employment restrictions set forth 
in this Section 11 are reasonable and that they do not, and will not, unduly 
impair his ability to earn a living after the termination of his employment 
with the Company. Therefore, subject to the limitations of reasonableness 
imposed by law upon restrictions set forth herein, the Executive shall be 
subject to the restrictions set forth in this Section 11.

(b)  Definitions.  The following capitalized terms used in this Section 11 
shall have the meanings assigned to them below, which definitions shall apply 
to both the singular and the plural forms of such terms:

"Confidential Information" means any confidential or proprietary information
possessed by the Company without limitation, any confidential "know-how",
customer lists, details of client or


                                       8

<PAGE>

consultant contracts, current and anticipated customer requirements, pricing 
policies, price lists, market studies, business plans, operational methods, 
marketing plans or strategies, product development techniques or plans, 
computer software programs (including object code and source code), data and 
documentation, data base technologies, systems, structures and architectures, 
inventions and ideas, past, current and planned research and development, 
compilations, devices, methods, techniques, processes, financial information 
and data, business acquisition plans, new personnel acquisition plans and any 
other information that would constitute a trade secret under the common law 
or statutory law of the State of Delaware.

"Determination Date" means the date of termination of the Executive's employment
with the Company for any reason whatsoever or any earlier date (during the
Restricted Period) of an alleged breach of the Restrictive Covenants by the
Executive.

"Person" means any individual or any corporation, partnership, joint venture,
association or other entity or enterprise.

"Principal or Representative" means a principal, owner, partner, shareholder,
joint venturer, member, trustee, director, officer, manager, employee, agent,
representative or consultant.

"Protected Employees" means employees of the Company or its affiliated companies
who were employed by the Company or its affiliated companies at any time within
six (6) months prior to the Determination Date.

"Restricted Period" means the period of the Executive's employment by the
Company plus a period extending two (2) years from the date of termination of
employment.

"Restrictive Covenants" means the restrictive covenants contained in Section
11(c) hereof.

(c) Restrictive Covenants.

(i) Restriction on Disclosure and Use of Confidential Information. The 
Executive understands and agrees that the Confidential Information 
constitutes a valuable asset of the Company and its affiliated entities, and 
may not be converted to the Executive's own use.  Accordingly, the Executive 
hereby agrees that the Executive shall not, directly or indirectly, at any 
time during the Restricted Period reveal, divulge or disclose to any Person 
not expressly authorized by the Company any Confidential Information, and the 
Executive shall not, directly or indirectly, at any time during the 
Restricted Period use or make use of any Confidential Information in 
connection with any business activity other than that of the Company.  The 
parties acknowledge and agree that this Agreement is not intended to, and 
does not, alter either the Company's rights or the Executive's obligations 
under any state or federal statutory or common law regarding trade secrets 
and unfair trade practices.

(ii) Nonsolicitation of Protected Employees.  The Executive understands and
agrees that the relationship between the Company and each of its Protected
Employees constitutes a valuable asset of the Company and may not be converted
to the Executive's own use.  Accordingly, the


                                       9

<PAGE>

Executive hereby agrees that during the Restricted Period the Executive shall 
not directly or indirectly on the Executive's own behalf or as a Principal or 
Representative of any Person solicit any Protected Employee to terminate his 
or her employment with the Company.

(iii) Noninterference with Company Opportunities. The Executive understands 
and agrees that all hotel development opportunities with which he is involved 
duoring his employment with the Company constitute valuable assets of the 
Company and its affiliated entites, and may not be converted to the 
Executive's own use. Accordingly, the Executive hereby agrees that during the 
Restricted Period the Executive shall not directly or indirectly on the 
Executive's own behalf or as a Principal or Representative of any Person, 
interfere with, solicit, pursue, or in any way make use of any such hotel 
development opportunities

(d) Exceptions from Disclosure Restrictions.  Anything herein to the contrary 
notwithstanding, the Executive shall not be restricted from disclosing or 
using Confidential Information that: (i) is or becomes generally available to 
the public other than as a result of an unauthorized disclosure by the 
Executive or his agent; (ii) becomes available to the Executive in a manner 
that is not in contravention of applicable law from a source (other than the 
Company or its affiliated entities or one of its or their officers, 
employees, agents or representative) that is not bound by a confidential 
relationship with the Company or its affiliated entities or by a 
confidentiality or other similar agreement; (iii) was known to the Executive 
on a non-confidential basis and not in contravention of applicable law or a 
confidentiality or other similar agreement before its disclosure to the 
Executive by the Company or its affiliated entities or one of its or their 
officers, employees, agents or representatives; or (iv) is required to be 
disclosed by law, court order or other legal process; PROVIDED, HOWEVER, that 
in the event disclosure is required by law, court order or legal process, the 
Executive shall provide the Company with prompt notice of such requirement so 
that the Company may seek an appropriate protective order prior to any such 
required disclosure by the Executive.

(e) Enforcement of the Restrictive Covenants.

(i) Rights and Remedies upon Breach.  In the event the Executive breaches, or 
threatens to commit a breach of, any of the provisions of the Restrictive 
Covenants, the Company shall have the right and remedy to enjoin, 
preliminarily and permanently, the Executive from violating or threatening to 
violate the Restrictive Covenants and to have the Restrictive Covenants 
specifically enforced by any court of competent jurisdiction, it being agreed 
that any breach or threatened breach of the Restrictive Covenants would cause 
irreparable injury to the Company and that money damages would not provide an 
adequate remedy to the Company.  The rights referred to in the preceding 
sentence shall be independent of any others and severally enforceable, and 
shall be in addition to, and not in lieu of, any other rights and remedies 
available to the Company at law or in equity.

(ii)  Severability of Covenants.  The Executive acknowledges and agrees that 
the Restrictive Covenants are reasonable and valid in time and space and in 
all other respects.  If any court determines that any Restrictive Covenants, 
or any part thereof, is invalid or unenforceable, the remainder of the 
Restrictive Covenants shall not thereby be affected and shall be given full 
effect, without regard to the invalid portions. 

12. COOPERATION IN FUTURE MATTERS

The Executive hereby agrees that, for a period of three (3) years following his
Date of Termination, he shall cooperate with the Company's reasonable requests
relating to matters that pertain to the Executive's employment by the Company,
including, without limitation, providing information or limited consultation as
to such matters, participating in legal proceedings,


                                      10

<PAGE>

investigations or audits on behalf of the Company, or otherwise making 
himself reasonably available to the Company for other related purposes.  Any 
such cooperation shall be performed at times scheduled taking into 
consideration the Executive's other commitments, and the Executive shall be 
compensated at a reasonable hourly or PER DIEM rate to be agreed by the 
parties to the extent such cooperation is required on more than an occasional 
and limited basis.  The Executive shall not be required to perform such 
cooperation to the extent it conflicts with any requirements of exclusivity 
of service for another employer or otherwise, nor in any manner that in the 
good faith belief of the Executive would conflict with his rights under or 
ability to enforce this Agreement.

13. INDEMNIFICATION

     (a) Following the Date of Termination, the Company agrees that it will, 
indemnify and hold harmless the Executive, against any costs or expenses 
(including attorneys' fees), judgments, fines, losses, claims, damages, 
liabilities or amounts paid in settlement incurred in connection with any 
claim, action, suit, proceeding or investigation, whether civil, criminal, 
administrative or investigative, arising out of or pertaining to matters 
existing or occurring at or prior to the Date of Termination, whether 
asserted or claimed prior to, at or after the Date of Termination, to the 
fullest extent that the Company would have been permitted under Delaware law 
and its certificate of incorporation or bylaws in effect on the date hereof 
to indemnify the Executive (and the Company shall also advance expenses as 
incurred to the fullest extent permitted under applicable law, provided the 
Executive provides an undertaking to repay advances if it is ultimately 
determined that the Executive is not entitled to indemnification).

     (b) For a period of six years after the  Date of Termination, the 
Company shall maintain (to the extent available in the market) in effect a 
director's and officer's liability insurance policy covering with coverage in 
amount and scope at least as favorable as the Company's existing coverage on 
the Date of Termination; provided that in no event shall the Company be 
required to expend in the aggregate in excess of 200% of the annual premium 
paid by the Company for such coverage as of the Date of Termination; and if 
such premium would at any time exceed 200% of the such amount, then the 
Company shall maintain insurance policies which provide the maximum and best 
coverage available at an annual premium equal to 200% of such amount.

(c) The provisions of this Section 13 are intended to be an addition to the
rights otherwise available to the Executive by law, charter, statute, bylaw or
separate agreement between the Company and the Executive. The Company shall
continue to honor any indemnification agreement between the Company and the
Executive entered into prior to the Date of Termination in accordance with the
terms thereof.

14. SUCCESSORS, BINDING AGREEMENT.  
     
(a) The Company will require any successor (whether direct or indirect, by
purchase, merger, consolidation or otherwise) to all or substantially all of the
business and/or assets of the Company to expressly assume and agree to perform
this Agreement in the same manner and to the same extent that the Company would
be required to perform it if no such succession had


                                      11

<PAGE>

taken place.  Failure of the Company to obtain such assumption and agreement 
prior to the effectiveness of any such succession shall be a breach of this 
Agreement and shall entitle the Executive to compensation from the Company in 
the same amount and on the same terms as the Executive would be entitled to 
hereunder if the Company terminated his employment without Cause following a 
Reorganization Event of the Company, except that for purposes of implementing 
the foregoing, the date on which any such succession becomes effective shall 
be deemed the Date of Termination.  As used in this Agreement, "Company" 
shall mean the Company as herein before defined and any successor to its 
business and/or assets as aforesaid which assumes and agrees to perform this 
Agreement by operation of law, or otherwise.  
     
(b) This Agreement shall inure to the benefit of and be enforceable by the
Executive's personal or legal representatives, executors, administrators,
successors, heirs, distributees, devises and legatees.  If the Executive should
die while any amount remains payable to him hereunder, all such amounts, unless
otherwise provided herein, shall be paid in accordance with the terms of this
Agreement to the Executive's devisee, legatee or other designee or, if there is
no such designee, to the Executive's estate.  

15. NOTICE  

Any notice required or permitted to be given by this Agreement shall be
effective only if in writing, delivered personally against receipt therefor or
mailed by certified or registered mail, return receipt requested, to the parties
at the addresses hereinafter set forth, or at such other places that either
party may designate by notice to the other.


                                      12

<PAGE>

Notice to the Company shall be addressed to:

            Doubletree Corporation
            410 North 44th Street
            Phoenix, AZ  85008
            Attn: Corporate Secretary

Notice to the Executive shall be addressed to him at the business address of the
Company where the Executive is employed, with a copy to him at his home address
as follows:
            William L. Perocchi
            6350 East Naumann Dr.
            Paradise Valley, AZ 85253
 
All such notices shall be deemed effectively given five (5) days after the same
has been deposited in a post box under the exclusive control of the United
States Postal Service.

16.  MISCELLANEOUS  

     No provision of this Agreement may be modified, waived or discharged
unless such waiver, modification or discharge is agreed to in writing and signed
by the Executive and such officer of the Company as may be specifically
designated by the Board.  No waiver by either party hereto at any time of any
breach by the other party hereto of, or compliance with, any condition or
provision of this Agreement to be performed by such other party shall be deemed
a waiver of similar or dissimilar provisions or conditions at the same or at any
prior or subsequent time.  No agreement or representations, oral or otherwise,
express or implied, with respect to the subject matter hereof have been made by
either party which are not expressly set forth in this Agreement.  The validity,
interpretation, construction and performance of this Agreement shall be governed
by the laws of the State of Delaware.  The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision of this Agreement, which shall remain in full force and
effect.  
     
17.  COUNTERPARTS  

This Agreement may be executed in several counterparts, each of which shall be
deemed to be an original but all of which together will constitute one and the
same instrument.
     
18.  ARBITRATION  

Any dispute or controversy arising under or in connection with this Agreement
shall be settled exclusively by arbitration in accordance with the rules of the
American Arbitration Association then in effect.  Judgment may be entered on the
arbitrator's award in any court having jurisdiction. 


                                      13

<PAGE>

19. PAYMENT OF LEGAL FEES 

The Company shall pay all reasonable legal fees and expenses incurred by the
Executive in connection with any arbitration (or other proceeding whether or not
instituted by the Company or the Executive), relating to the interpretation or
enforcement of any provision of this Agreement (including any action seeking to
obtain or enforce any right or benefit provided by this Agreement) or in
connection with any tax audit or proceeding relating to the application of
Section 4999 of the Code to any payment or benefit provided by the Company.
     
20. NO RESTRICTIONS ON EMPLOYMENT RIGHTS
     
Nothing in this Agreement shall confer on the Executive any right to continue in
the employ of the Company or shall interfere with or restrict in any way the
rights of the Company, which are hereby expressly reserved, to discharge the
Executive at any time for any reason whatsoever, with or without Cause, subject
to the requirements of this Agreement.  Nothing in this Agreement shall restrict
the right of the Executive to terminate his employment with the Company at any
time for any reason whatsoever.

21. AFFECT ON EMPLOYMENT AGREEMENT

    
Any severance payment made to the Executive under this Agreement shall 
supersede and be in lieu of any severance payment to which the Executive may 
become entitled under the Employment Agreement. The occurrence of a Covered 
Termination following the occurrence of more than one Reorganization Event 
after the date hereof shall not entitle the Executive to multiple severance 
payments under this Agreement and/or the Employoment Agreement.

                                      14

<PAGE>

IN WITNESS WHEREOF, the parties have executed these  presents as of the day and
year first above written.



                                        DOUBLETREE CORPORATION

                                        __________________________________
                                        Name:  David L. Stivers
                                        Title: Senior Vice President
                                               Secretary & General Counsel

                                        EXECUTIVE


                                        __________________________________
                                        Name: William L. Perocchi
 


                                    15

<PAGE>
                                                                         TIER I

                              SEVERANCE AGREEMENT

    THIS SEVERANCE AGREEMENT (this "Agreement") is made as of this ____ day 
of December, 1997, between DOUBLETREE CORPORATION (the "Company") and 
______________________(the "Executive").


                                   RECITALS

    WHEREAS, the Company considers it essential to the best interest of its 
stockholders to foster the continuous employment of key management personnel, 
and believes that the possibility of a reorganization event of the Company 
and the uncertainty and questions which it may raise among management may 
result in the departure or distraction of management personnel to the 
detriment of the Company and its stockholders; and

    WHEREAS, the Board of Directors has determined that appropriate steps 
should be taken to reinforce and encourage the continued attention and 
dedication of members of the Company's management, including the Executive, 
to their assigned duties without distraction in the face of potentially 
disturbing circumstances arising from the possibility of a reorganization 
event of the Company;

    NOW, THEREFORE, in consideration of the mutual premises set forth below 
and for other good and valuable consideration, in order to induce the 
Executive to remain in the employ of the Company, the Company agrees that the 
Executive shall receive the severance benefits set forth in this agreement 
("this Agreement") in the event his employment with the Company terminates 
subsequent to a "Reorganization Event" of the Company under the circumstances 
described below.

                                  AGREEMENT

    1. DEFINITIONS
    
    The following terms used in this Agreement shall have the meanings given 
below:
    
    (a) "ANNUAL BASE SALARY" shall mean the Executive's gross annual salary 
before any deductions, exclusions or any deferrals or contributions under any 
Company plan or program, but excluding bonuses, incentive compensation, 
employee benefits or any other non-salary form of compensation (determined 
without regard to any reduction in Annual Base Salary that results in "Good 
Reason" termination).

                                       1

<PAGE>

    (b) "BOARD" shall mean the Board of Directors of the Company.
    
    (c) "BONUS AMOUNT" shall mean the greater of (i) the dollar amount of the 
annual bonus that would be payable to the Executive under the Company's 
annual bonus plan applicable to the Executive, assuming payment at the 
Executive's target level for the then-current full fiscal year (determined 
without regard to any reduction in target bonus percentage that results in 
"Good Reason" termination), or (ii) the dollar amount of the bonus paid or 
payable to the Executive under the Company's annual bonus plan for the most 
recently completed fiscal year under such plan.  Notwithstanding the 
foregoing, if the Executive is a participant in the Company's New Business 
Bonus Plan (or any successor plan), the "Bonus Amount" shall mean the dollar 
amount of the bonus actually paid to the Executive during the most recently 
completed fiscal year under such plan, subject to a maximum limitation equal 
to the dollar amount of the annual bonus that would have been payable to the 
Executive under the Company's generally applicable annual bonus plan for such 
year, assuming for this purpose that he was a participant in such plan and 
that he would receive a bonus at the maximum level (as a percentage of 
salary) that applies under such plan for such year to other executives with 
the same title as the Executive.  For the purposes hereof, the "Bonus Amount" 
shall not include any special bonuses paid outside of the Company's generally 
applicable annual bonus plan or the Company's  New Business Bonus Plan (or 
any successor plan). 
    
    (d) "CODE" shall mean the Internal Revenue Code of 1986, as amended.
    
    (e) "COMPANY" shall mean Doubletree Corporation, or any successor 
corporation that assumes this Agreement under Section 14 hereof or otherwise 
becomes bound by this Agreement.
    
    (f) "COVERED TERMINATION" shall have the meaning given in Section 3 hereof. 
    
    (g) "DATE OF TERMINATION" shall mean the effective date of the 
Executive's Covered Termination pursuant to Section 3 hereof.
    
    (h) "DISABILITY" shall mean the absence of the Executive from the 
full-time performance of his duties with the Company for six consecutive 
months as a result of incapacity due to physical or mental illness, provided 
the Company has given 30-day advance written notice to the Executive and he 
has not returned to the full-time performance of his duties.
    
    (i) "REORGANIZATION EVENT" shall mean the occurrence of any of the 
following after the date hereof:
    
         (i) any "person" (as such term is used in Section 13(d) and 14(d) of
    the Securities Exchange Act of 1934, as amended (the "Exchange Act"), other
    than an employee benefit plan of the Company, or a trustee or other
    fiduciary holding securities under an employee benefit plan of the Company,
    becomes a "beneficial owner" (as defined in rule 13d-3 under the Exchange
    Act), directly or indirectly, of 25% or more of the Company's then
    outstanding voting securities carrying the right to vote in elections of
    persons to the Board, regardless of comparative voting 

                                       2

<PAGE>

    power of such voting securities, and regardless of whether or not the 
    Board shall have approved such Reorganization Event; PROVIDED, HOWEVER, 
    that an acquisition after the date hereof by the General Electric Pension 
    Trust or its affiliates, by Richard Ferris, or by Peter Ueberroth of 25% 
    or more of the Company's then-outstanding securities shall not be deemed a 
    "Reorganization Event" of the Company; or
    
         (ii) during any period of two (2) consecutive years (not including any
    period prior to the execution of this Agreement), individuals who at the
    beginning of such period constitute the Board (the "Incumbent Board") and
    any other new director (other than a director designated by a person who
    shall have entered into an agreement with the Company to effect a
    transaction described in clauses (i) or (iii) of this subsection) whose
    election by the Board or nomination for election by the Company's
    stockholders was approved by a vote of at least two-thirds (2/3) of the
    directors then still in office who either were directors at the beginning
    of the period or whose election or nomination for election was previously
    so approved (each such new director being considered a member of the
    "Incumbent Board"), cease for any reason to constitute a majority thereof;
    or
    
         (iii) the holders of securities of the Company entitled to vote
    thereon approve of the following:
    
              (A) a merger or consolidation of the Company with any other
         corporation regardless of which entity is the surviving company, other
         than a merger or consolidation which would result in the voting
         securities of the Company carrying the right to vote in elections of
         persons to the Board outstanding immediately prior thereto continuing
         to represent (either by remaining outstanding or by being converted
         into voting securities of the surviving entity) at least 66 2/3% of
         the Company's then-outstanding voting securities carrying the right to
         vote in elections of persons to the Board or such securities of such
         surviving entity outstanding immediately after such merger or
         consolidation, or
              
              (B) a plan of complete liquidation of the Company or an agreement
         for the sale or disposition by the Company of all or substantially all
         of the Company's assets.
    
    Notwithstanding the definition of "Reorganization Event" of the Company as
set forth in this Agreement, the Board shall have full and final authority,
which shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the occurrence
of such Reorganization Event and any incidental matters relating thereto, with
respect to a transaction or series of transactions which have resulted or will
result in a substantial portion of the assets or business of the Company (as
determined immediately prior to the transaction or series of transactions by the
Board in its sole discretion which determination shall be final and conclusive)
being held by a corporation at least 66 2/3% of whose voting securities are
held, immediately following such transaction or series of transactions, by
holders of the voting securities of the Company (determined immediately prior to
such transaction or series of transactions).  The Board may exercise such
discretionary authority without regard to whether one or more of the
transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth 

                                       3

<PAGE>

in this Agreement.  It is hereby understood and agreed that the consummation 
of the business combination contemplated by the Agreement and Plan of Merger 
dated as of September 1, 1997 among Doubletree Corporation, Promus Hotel 
Corporation and Parent Holding Corp. shall constitute a Reorganization Event 
for purposes of this Agreement.
    
    2. TERM OF AGREEMENT  
    
    This Agreement shall commence on the date first written above and shall 
continue in effect though December 31, 1998; PROVIDED, HOWEVER, that 
commencing on January 1, 1999 and each January 1 thereafter, the term of this 
Agreement shall automatically be extended for one additional year unless, not 
later than September 30 of the preceding year, the Company shall have given 
notice that it does not wish to extend this Agreement.  Notwithstanding the 
foregoing, no notice of non-renewal given by the Board shall be effective 
with respect to a particular Reorganization Event if given after the 
occurrence of the following events: (i) the Company enters into an agreement 
or letter of intent, the consummation of which would result in such 
Reorganization Event, (ii) any "person" makes a public announcement of its 
intention to take or consider taking actions that would result in such 
Reorganization Event, or (iii) any "person" (as defined above) initiates a 
tender offer which, if consummated, would result in such Reorganization Event 
(it being understood that this sentence shall not apply with respect to any 
unrelated Reorganization Event).  If a Reorganization Event of the Company 
shall have occurred during the original or extended term of this Agreement, 
the term of this Agreement shall continue in force and effect until the 
satisfaction of all of the Company's obligations to the Executive as provided 
hereunder.
     
    3.  COVERED TERMINATION 
    
    (a) GENERAL.  The Executive shall be treated as having incurred a 
"Covered Termination" hereunder if his employment is terminated, within a 
period of two (2) years following the consummation of a Reorganization Event 
of the Company, by the Company other than for Cause or by the Executive for 
Good Reason.  The Executive shall not be treated as having incurred a Covered 
Termination if his employment is terminated as a result of death or 
Disability.  NOTE that, as described below, the Executive must give 30-days 
advance written notice of termination for Good Reason, thus effectively 
requiring that such notice be given no later than 30 days prior to the 
expiration of the two (2) year period described above (in order for the Date 
of Termination to occur prior to the expiration of such period).
     
    (b)  TERMINATION FOR CAUSE. Termination by the Company of the Executive's 
employment for "Cause" shall mean termination as a result of: 
    
         (i) the Executive engaging in willful gross neglect of his duties with
    the Company, or the Executive's fraud or dishonesty in connection with his
    performance of duties to the Company, in either case which has a materially
    detrimental effect on the business or operations of the Company; or 

                                       4

<PAGE>

         (ii) the Executive's conviction by a court of competent jurisdiction
    of any crime (or upon entering a plea of guilty or NOLO CONTENDERE to a
    charge of any crime) constituting a felony.
    
    The Date of Termination for a termination for Cause shall be the date 
specified by the Company.                    
     
    (c) TERMINATION FOR GOOD REASON.  For purposes hereof, the Executive may
terminate his employment for "Good Reason" as a result of: 
    
         (i) a material adverse change in the Executive's position or title as
    in effect at the time of the Reorganization Event of the Company; 
    
         (ii) a substantial reduction in the Executive's overall level of 
    authority and responsibility with the Company as in effect at the time
    of the Reorganization Event of the Company;
    
         (iii) any reduction in the Executive's Annual Base Salary as in effect
    at the time of the Reorganization Event of the Company;  
    
         (iv) any reduction in the Executive's target or maximum bonus
    percentage under the Company's annual bonus plan from the percentage in
    effect at the time of the Reorganization Event of the Company; 
    
         (v) a relocation by more than 50 miles of the Executive's principal
    place of business at the time of the Reorganization Event of the Company,
    or the Company's requiring the Executive to locate anywhere that is more
    than 50 miles from the Executive's principal place of business at the time
    of the Reorganization Event; or
    
         (vi) a notice of termination given by the Executive for any reason 
    (including, without limitation, retirement) during the thirty (30) day
    period immediately following the first (1st) anniversary of the consummation
    of the Reorganization Event of the Company.
         
    Notwithstanding the foregoing, the Executive shall not be entitled to 
terminate his employment for Good Reason under items (i), (ii), (iii) or (iv) 
above solely on the basis of his assignment to a new position with the 
Company or its successor (which may otherwise constitute a Good Reason under 
one or more of such items) if the Executive has accepted such assignment in 
writing.  Any such acceptance shall not waive the Executive's rights as to 
any other or any future Good Reason events. 
    
    The Executive shall provide the Company with 30-day advance written 
notice of a termination for Good Reason setting forth in reasonable detail 
the facts and circumstances claimed to provide a basis for the termination.  
Such notice may be given at any time following the occurrence of the events 
that provide the basis for the termination, but not later than the date that 
is 30 days prior to the second anniversary date of the consummation of the 
Reorganization Event of the Company; PROVIDED, HOWEVER, that (a) where a 
termination for Good Reason is on account of relocation, as provided in item 
(v) above, such notice shall be provided within one (1) year of the effective 
date 

                                       5

<PAGE>

of such relocation (but not later than the date that is 30 days prior to the 
second anniversary date of the consummation of the Reorganization Event of 
the Company), and (b) where a termination for Good Reason is claimed under 
item (vi) above, such notice shall be provided within the thirty (30) day 
notice period referred to therein .  If within the thirty (30) day period, 
the Company takes actions reasonably satisfactory to the Executive to remedy 
the basis for the Good Reason termination, such notice of termination shall 
be considered null and void; PROVIDED, HOWEVER, that the Company shall not 
have the right to remedy a Good Reason termination occurring on the basis of 
a relocation as described in item (v) above or on the basis of the 
termination notice described in item (vi) above.  The Date of Termination for 
a termination for Good Reason shall be the expiration of the 30-day notice 
period provided for above.
    
    4. SEVERANCE PAYMENT  
    
    The amount of the severance payment to be paid to the Executive upon 
Covered Termination shall be the amount determined by multiplying 3.00 times 
the sum of:
    
    (a) the Executive's Annual Base Salary as in effect immediately prior to
the Date of Termination; PLUS, 
    
    (b) the Executive's Bonus Amount applicable for the fiscal year in which
the Date of Termination occurs; PLUS, 
    
    (c) a benefit allowance of 25% of the Executive's Annual Base Salary as in
effect immediately prior to the Date of Termination.
    
    5. OTHER SEVERANCE BENEFITS
    
    In addition to the severance payment provided under Section 4 hereof, the 
Executive shall be entitled to the following benefits and other rights in the 
event of his Covered Termination:
    
    (a) ACCRUED RIGHTS.  The Executive shall be entitled to the following 
payments and benefits in respect of accrued compensation rights upon a 
Covered Termination, in addition to other rights provided under this 
Agreement: 
    
         (i) payment of any accrued but unpaid Annual Base Salary through the
    Date of Termination; 
    
         (ii)  if the Executive is a participant in the Company's annual bonus
    plan, payment of (1) any earned but unpaid bonus under such plan for any
    completed fiscal year prior to the Date of Termination, as determined by
    the Company in its sole discretion and (2) a pro-rata portion of the Bonus
    Amount for the fiscal year of the Company in which the Covered Termination
    occurs, based on the number of days of such year prior to the Date of
    Termination;
    
                                            6

<PAGE>

         (iii) if the Executive is a participant in the Company's  New Business
    Bonus Plan (or any successor plan) payment of any earned but unpaid bonus
    under such plan for periods prior to the Date of Termination, as determined
    by the Company in its sole discretion;  
    
         (iv) all benefits and rights accrued under the employee benefit plans,
    fringe benefits programs and payroll practices of the Company in accordance
    with their terms (including, without limitations, employee pension,
    employee welfare, incentive bonus, stock incentive plans, and any accrued
    vacation or accrued sick pay time); and
         
         (v) a payment equal to the forfeited portion of the account balance of
    the Executive under the Company's tax qualified and non-qualified pension
    and deferred compensation plans as a result of failure to satisfy vesting
    requirements due to the Covered Termination.
              
    (b) OUTPLACEMENT SERVICES. Upon the occurrence of a Covered Termination, 
the Executive shall be provided, at the Company's sole expense, with 
professional outplacement services consistent with the Executive's duties or 
profession and of a type and level customary for persons in his position, as 
selected by the Company, subject to reasonable limitations established by the 
Company on a uniform basis for similarly situated executives as to duration 
and dollar amounts.
    
    6. EXCISE TAX REIMBURSEMENT  
    
     In the event it shall be determined that any payment or distribution by 
the Company or any other person or entity to or for the Executive's benefit, 
whether paid or payable or distributed or distributable pursuant to the terms 
of this Agreement or otherwise, or whether prior to or following the Covered 
Termination in connection with, or arising out of, the Executive's employment 
with the Company or a Reorganization Event of the Company (a "Payment") will 
be subject to the tax (the "Excise Tax") imposed by section 4999 of the Code, 
the Company shall pay to the Executive at the time specified in Section 7 
hereof, an additional amount (the "Gross-Up Payment") such that the net 
amount retained by the Executive, after deduction of any Excise Tax on the 
Payments and any federal (and state and local) income tax, employment tax, 
and Excise Tax upon the payment provided for by this paragraph, shall be 
equal to the amount of the Payments.  For purposes of determining whether any 
of the Payments will be subject to the Excise Tax and the amount of such 
Excise Tax the following will apply: 
     
     (a) any payments or benefits received or to be received by the Executive 
in connection with a Reorganization Event of the Company or his termination 
of employment (whether pursuant to the terms of this Agreement or any other 
plan, arrangement or agreement with the Company, any person whose actions 
result in a Reorganization Event of the Company or any person affiliated with 
the Company or such person) shall be treated as "parachute payments" within 
the meaning of section 280G(b)(2) of the Code, and all "excess parachute 
payments" within the meaning of section 280G(b)(1) shall be treated as 
subject to the Excise Tax, unless in the opinion of tax counsel selected by 
the Company's independent auditors and acceptable to the Executive such other 
payments or benefits (in whole or in part) do not constitute parachute 
payments, or such 

                                       7

<PAGE>

excess parachute payments (in whole or in part) represent reasonable 
compensation for services actually rendered within the meaning of section 
280G(b)(4) of the Code in excess of the base amount within the meaning of 
section 280G(b)(3) of the Code, or are otherwise not subject to the Excise 
Tax; and
     
     (b) the value of any non-cash benefits or any deferred payment or 
benefit shall be determined by the Company's independent auditors in 
accordance with proposed, temporary or final regulations under Sections 
280G(d)(3) and (4) of the Code or, in the absence of such regulations, in 
accordance with the principles of Section 280G(d)(3) and (4) of the Code.  
For purposes of determining the amount of the Gross-Up Payment, the Executive 
shall be deemed to pay federal income taxes at the highest marginal rate of 
federal income taxation in the calendar year in which the Gross-Up Payment is 
to be made and state and local income taxes at the highest marginal rate of 
taxation in the state and locality of the Executive's residence on the Date 
of Termination, net of the maximum reduction in federal income taxes which 
could be obtained from deduction of such state and local taxes.  In the event 
that the amount of Excise Tax attributable to Payments is subsequently 
determined to be less than the amount taken into account hereunder at the 
time of termination of the Executive's employment, he shall repay to the 
Company at the time that the amount of such reduction in Excise Tax is 
finally determined the portion of the Gross-Up Payment attributable to such 
reduction (plus the portion of the Gross-Up Payment attributable to the 
Excise Tax, employment tax and federal (and state and local) income tax 
imposed on the Gross-Up Payment being repaid by the Executive if such 
repayment results in a reduction in Excise Tax and/or a federal (and state 
and local) income tax deduction) plus interest on the amount of such 
repayment at the rate provided in section 1274(b)(2) (B) of the Code.  In the 
event that the Excise Tax attributable to Payments is determined to exceed 
the amount taken into account hereunder at the time of the termination of the 
Executive's employment (including by reason of any payment the existence or 
amount of which cannot be determined at the time of the Gross-Up Payment), 
the Company shall make an additional gross-up payment in respect of such 
excess (plus any interest payable with respect to such excess) at the time 
that the amount of such excess is finally determined.  


    7. METHOD OF PAYMENT  
    
    The payments provided for in Sections 4, 5 and 6 hereof shall be made in 
a cash lump-sum payment, net of any required tax withholding, upon the later 
of (i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 10 hereof.  Any payment required 
under Sections 4, 5 or 6 or any other provision of this Agreement that is not 
made in a timely manner shall bear interest at a rate equal to one-hundred 
twenty (120) percent of the monthly compounded applicable federal rate, as in 
effect under Section 1274(d) of the Code for the month in which the payment 
is required to be made.
    
    8. RELOCATION EXPENSES  
    
    The Executive shall be entitled to a reimbursement payment from the Company
equal to his reasonable moving expenses (determined in accordance with Company's
relocation policy) 

                                       8


<PAGE>

incurred in connection with the Executive's written acceptance of a position 
with the Company requiring his relocation to a metropolitan area, other than 
the metropolitan area where his office is located at the time of the 
Reorganization Event of the Company.  The Company shall pay the Executive an 
additional payment in an amount such that the net amount retained by the 
Executive after deduction for any federal, state, and local income tax, 
employment tax and any excise tax on the reimbursement payment shall equal 
the amount of the reimbursement payment.  If the employment of the Executive 
is terminated for Good Reason on the basis of his relocation under Section 3 
hereof, the payment to which the Executive is entitled to under Section 4 
hereof will be reduced by 25% of the relocation payment, including tax 
reimbursement, that the Executive received from the Company under this 
Section 8.

                                       9

<PAGE>

    9. NO MITIGATION OR OFFSET
    
    The Executive shall not be required to mitigate the amount of any 
severance payment or benefit provided under this Agreement by seeking other 
employment or otherwise.  The amount of any payment or benefit to which the 
Executive becomes entitled hereunder shall not be reduced by any compensation 
earned by the Executive as the result of employment by another employer, by 
retirement benefits, nor by offset against any amount claimed to be owed to 
the Company by reason of a claimed breach by the Executive of his obligations 
under Sections 11 or 12 hereof or otherwise (except that offset shall apply 
as specifically provided in Section 8 hereof concerning relocation expenses 
and Section 21 hereof concerning other severance payments).  
    
    10. RELEASE OF CLAIMS
    
    As conditions of Executive's entitlement to the severance payments and
benefits provided by this Agreement, the Executive shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit A (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).  
    
    11. RESTRICTION ON CONDUCT OF EXECUTIVE
    
    (a)   GENERAL.  The Executive and the Company understand and agree that the
purpose of the provisions of this Section 11 is to protect legitimate business
interests of the Company, as more fully described below, and is not intended to
impair or infringe upon the Executive's right to work, earn a living, or acquire
and possess property from the fruits of his labor.  The Executive hereby
acknowledges that the post-employment restrictions set forth in this Section 11
are reasonable and that they do not, and will not, unduly impair his ability to
earn a living after the termination of his employment with the Company. 
Therefore, subject to the limitations of reasonableness imposed by law upon
restrictions set forth herein, the Executive shall be subject to the
restrictions set forth in this Section 11.
    
    (b)  DEFINITIONS.  The following capitalized terms used in this Section 11
shall have the meanings assigned to them below, which definitions shall apply to
both the singular and the plural forms of such terms:
    
    "Confidential Information" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.

                                       10

<PAGE>
    
    "Determination Date" means the date of termination of the Executive's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Executive.
    
    "Person" means any individual or any corporation, partnership, joint 
venture, association or other entity or enterprise.
    
    "Principal or Representative" means a principal, owner, partner, 
shareholder, joint venturer, member, trustee, director, officer, manager, 
employee, agent, representative or consultant.
    
    "Protected Employees" means employees of the Company or its affiliated 
companies who were employed by the Company or its affiliated companies at any 
time within six (6) months prior to the Determination Date.
    
    "Restricted Period" means the period of the Executive's employment with 
the Company plus a period extending two (2) years from the date of 
termination of employment.
    
    "Restrictive Covenants" means the restrictive covenants contained in 
Section 11(c) hereof.
    
    (c) RESTRICTIVE COVENANTS.
    
              (i) RESTRICTION ON DISCLOSURE AND USE OF CONFIDENTIAL
         INFORMATION.  The Executive understands and agrees that the
         Confidential Information constitutes a valuable asset of the Company
         and its affiliated entities, and may not be converted to the
         Executive's own use.  Accordingly, the Executive hereby agrees that
         the Executive shall not, directly or indirectly, at any time during
         the Restricted Period reveal, divulge or disclose to any Person not
         expressly authorized by the Company any Confidential Information, and
         the Executive shall not, directly or indirectly, at any time during
         the Restricted Period use or make use of any Confidential Information
         in connection with any business activity other than that of the
         Company.  The parties acknowledge and agree that this Agreement is not
         intended to, and does not, alter either the Company's rights or the
         Executive's obligations under any state or federal statutory or common
         law regarding trade secrets and unfair trade practices.
    
             (ii) NONSOLICITATION OF PROTECTED EMPLOYEES.  The Executive 
          understands and agrees that the relationship between the Company 
          and each of its Protected Employees constitutes a valuable asset of 
          the Company and may not be converted to the Executive's own use.  
          Accordingly, the Executive hereby agrees that during the Restricted 
          Period the Executive shall not directly or indirectly on the 
          Executive's own behalf or as a Principal or Representative of any 
          Person solicit any Protected Employee to terminate his or her 
          employment with the Company.  
         
            (iii) NONINTERFERENCE WITH COMPANY OPPORTUNITIES.  The Executive 
          understands and agrees that all hotel development opportunities 
          with which he is involved during his employment with the Company 
          constitute valuable assets of the Company and its affiliated 
          entities, and may not be converted to Executive's own use.  
          Accordingly, the Executive hereby agrees that during the 

                                       11

<PAGE>

          Restricted Period the Executive shall not directly or indirectly
          on the Executive's own behalf or as a Principal or Representative of
          any Person, interfere with, solicit, pursue, or in any way make use of
          any such hotel development opportunities.
    
    (d) EXCEPTIONS FROM DISCLOSURE RESTRICTIONS.  Anything herein to the
contrary notwithstanding, the Executive shall not be restricted from disclosing
or using Confidential Information that: (i) is or becomes generally available to
the public other than as a result of an unauthorized disclosure by the Executive
or his agent; (ii) becomes available to the Executive in a manner that is not in
contravention of applicable law from a source (other than the Company or its
affiliated entities or one of its or their officers, employees, agents or
representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or other similar
agreement; (iii) was known to the Executive on a non-confidential basis and not
in contravention of applicable law or a confidentiality or other similar
agreement before its disclosure to the Executive by the Company or its
affiliated entities or one of its or their officers, employees, agents or
representatives; or (iv) is required to be disclosed by law, court order or
other legal process; PROVIDED, HOWEVER, that in the event disclosure is required
by law, court order or legal process, the Executive shall provide the Company
with prompt notice of such requirement so that the Company may seek an
appropriate protective order prior to any such required disclosure by the
Executive.
    
    (e) ENFORCEMENT OF THE RESTRICTIVE COVENANTS.
    
              (i) RIGHTS AND REMEDIES UPON BREACH.  In the event the Executive
         breaches, or threatens to commit a breach of, any of the provisions of
         the Restrictive Covenants, the Company shall have the right and remedy
         to enjoin, preliminarily and permanently, the Executive from violating
         or threatening to violate the Restrictive Covenants and to have the
         Restrictive Covenants specifically enforced by any court of competent
         jurisdiction, it being agreed that any breach or threatened breach of
         the Restrictive Covenants would cause irreparable injury to the
         Company and that money damages would not provide an adequate remedy to
         the Company.  The rights referred to in the preceding sentence shall
         be independent of any others and severally enforceable, and shall be
         in addition to, and not in lieu of, any other rights and remedies
         available to the Company at law or in equity.
    
             (ii) SEVERABILITY OF COVENANTS.  The Executive acknowledges and 
          agrees that the Restrictive Covenants are reasonable and valid in 
          time and space and in all other respects.  If any court determines 
          that any Restrictive Covenants, or any part thereof, is invalid or 
          unenforceable, the remainder of the Restrictive Covenants shall not 
          thereby be affected and shall be given full effect, without regard 
          to the invalid portions. 
    
    12. COOPERATION IN FUTURE MATTERS
    
    The Executive hereby agrees that, for a period of three (3) years 
following his Date of Termination, he shall cooperate with the Company's 
reasonable requests relating to matters that pertain to the Executive's 
employment by the Company, including, without limitation, providing 
information or limited consultation as to such matters, participating in 
legal proceedings, 

                                       12

<PAGE>

investigations or audits on behalf of the Company, or otherwise making 
himself reasonably available to the Company for other related purposes.  Any 
such cooperation shall be performed at times scheduled taking into 
consideration the Executive's other commitments, and the Executive shall be 
compensated at a reasonable hourly or PER DIEM rate to be agreed by the 
parties to the extent such cooperation is required on more than an occasional 
and limited basis.  The Executive shall not be required to perform such 
cooperation to the extent it conflicts with any requirements of exclusivity 
of service for another employer or otherwise, nor in any manner that in the 
good faith belief of the Executive would conflict with his rights under or 
ability to enforce this Agreement.
    
    
13. INDEMNIFICATION
    
    (a) Following the Date of Termination, the Company agrees that it will, 
indemnify and hold harmless the Executive, against any costs or expenses 
(including attorneys' fees), judgments, fines, losses, claims, damages, 
liabilities or amounts paid in settlement incurred in connection with any 
claim, action, suit, proceeding or investigation, whether civil, criminal, 
administrative or investigative, arising out of or pertaining to matters 
existing or occurring at or prior to the Date of Termination, whether 
asserted or claimed prior to, at or after the Date of Termination, to the 
fullest extent that the Company would have been permitted under Delaware law 
and its certificate of incorporation or bylaws in effect on the date hereof 
to indemnify the Executive (and the Company shall also advance expenses as 
incurred to the fullest extent permitted under applicable law, provided the 
Executive provides an undertaking to repay advances if it is ultimately 
determined that the Executive is not entitled to indemnification).

    (b) For a period of six years after the  Date of Termination, the Company
shall maintain (to the extent available in the market) in effect a director's
and officer's liability insurance policy covering with coverage in amount and
scope at least as favorable as the Company's existing coverage on the Date of
Termination; provided that in no event shall the Company be required to expend
in the aggregate in excess of 200% of the annual premium paid by the Company for
such coverage as of the Date of Termination; and if such premium would at any
time exceed 200% of the such amount, then the Company shall maintain insurance
policies which provide the maximum and best coverage available at an annual
premium equal to 200% of such amount.

    (c) The provisions of this Section 13 are intended to be an addition to the
rights otherwise available to the Executive by law, charter, statute, bylaw or
separate agreement between the Company and the Executive. The Company shall
continue to honor any indemnification agreement between the Company and the
Executive entered into prior to the Date of Termination in accordance with the
terms thereof.
    
14. SUCCESSORS, BINDING AGREEMENT.  
     
    (a) The Company will require any successor (whether direct or indirect, by
purchase, merger, consolidation or otherwise) to all or substantially all of the
business and/or assets of the Company to expressly assume and agree to perform
this Agreement in the same manner and to 

                                       13

<PAGE>

the same extent that the Company would be required to perform it if no such 
succession had taken place.  Failure of the Company to obtain such assumption 
and agreement prior to the effectiveness of any such succession shall be a 
breach of this Agreement and shall entitle the Executive to compensation from 
the Company in the same amount and on the same terms as the Executive would 
be entitled to hereunder if he terminated his employment for Good Reason 
following a Reorganization Event of the Company, except that for purposes of 
implementing the foregoing, the date on which any such succession becomes 
effective shall be deemed the Date of Termination.  As used in this 
Agreement, "Company" shall mean the Company as herein before defined and any 
successor to its business and/or assets as aforesaid which assumes and agrees 
to perform this Agreement by operation of law, or otherwise.  
     
    (b) This Agreement shall inure to the benefit of and be enforceable by 
the Executive's personal or legal representatives, executors, administrators, 
successors, heirs, distributees, devises and legatees.  If the Executive 
should die while any amount remains payable to him hereunder, all such 
amounts, unless otherwise provided herein, shall be paid in accordance with 
the terms of this Agreement to the Executive's devisee, legatee or other 
designee or, if there is no such designee, to the Executive's estate.  
    
15. NOTICE  
    
    Any notice required or permitted to be given by this Agreement shall be
effective only if in writing, delivered personally against receipt therefor or
mailed by certified or registered mail, return receipt requested, to the parties
at the addresses hereinafter set forth, or at such other places that either
party may designate by notice to the other.

                                       14

<PAGE>

    Notice to the Company shall be addressed to:
    
              Doubletree Corporation
              410 North 44th Street, Suite 700
              Phoenix, AZ 85008
              Attn: Corporate Secretary
    
    Notice to the Executive shall be addressed to him at the business address 
of the Company where the Executive is employed, with a copy to him at his 
home address as follows:
    
              __________________________
                           
              __________________________
                           
              __________________________
   

    All such notices shall be deemed effectively given five (5) days after 
the same has been deposited in a post box under the exclusive control of the 
United States Postal Service.
    
    16.  MISCELLANEOUS  
    
     No provision of this Agreement may be modified, waived or discharged 
unless such waiver, modification or discharge is agreed to in writing and 
signed by the Executive and such officer of the Company as may be 
specifically designated by the Board.  No waiver by either party hereto at 
any time of any breach by the other party hereto of, or compliance with, any 
condition or provision of this Agreement to be performed by such other party 
shall be deemed a waiver of similar or dissimilar provisions or conditions at 
the same or at any prior or subsequent time.  No agreement or 
representations, oral or otherwise, express or implied, with respect to the 
subject matter hereof have been made by either party which are not expressly 
set forth in this Agreement.  The validity, interpretation, construction and 
performance of this Agreement shall be governed by the laws of the State of 
Delaware.  The invalidity or unenforceability of any provision of this 
Agreement shall not affect the validity or enforceability of any other 
provision of this Agreement, which shall remain in full force and effect.  
     
17.  COUNTERPARTS  
    
    This Agreement may be executed in several counterparts, each of which shall
be deemed to be an original but all of which together will constitute one and
the same instrument.

                                        15

<PAGE>

18.  ARBITRATION  
    
    Any dispute or controversy arising under or in connection with this 
Agreement shall be settled exclusively by arbitration in accordance with the 
rules of the American Arbitration Association then in effect.  Judgment may 
be entered on the arbitrator's award in any court having jurisdiction. 
   
19. PAYMENT OF LEGAL FEES 
    
    The Company shall pay all reasonable legal fees and expenses incurred by 
the Executive in connection with any arbitration (or other proceeding whether 
or not instituted by the Company or the Executive), relating to the 
interpretation or enforcement of any provision of this Agreement (including 
any action seeking to obtain or enforce any right or benefit provided by this 
Agreement) or in connection with any tax audit or proceeding relating to the 
application of Section 4999 of the Code to any payment or benefit provided by 
the Company.
     
20. NO RESTRICTIONS ON EMPLOYMENT RIGHTS
     
    Nothing in this Agreement shall confer on the Executive any right to 
continue in the employ of the Company or shall interfere with or restrict in 
any way the rights of the Company, which are hereby expressly reserved, to 
discharge the Executive at any time for any reason whatsoever, with or 
without Cause, subject to the requirements of this Agreement.  Nothing in 
this Agreement shall restrict the right of the Executive to terminate his 
employment with the Company at any time for any reason whatsoever, with or 
without Good Reason.
    
21. OTHER SEVERANCE AGREEMENTS 
    
    Any severance payments provided to the Executive under Section 4 hereof 
shall be offset by the dollar amount of any other cash severance payments to 
which the Executive is entitled under any other severance or termination pay 
plan, policy or agreement with the Company or its affiliates (including, 
without limitation, the severance or termination pay plans, policies and 
agreements of Red Lion Hotels, Inc.).

22. HOSTILE TRANSACTION PROVISION   

    (a)  Notwithstanding anything elsewhere in this Agreement to the 
contrary, in the event of consummation of a "Hostile Transaction" (as defined 
below), the definition of "Good Reason" set forth in Section 3(c) hereof 
shall be substituted with the following definition, which shall apply for all 
purposes of this Agreement:

    "Termination for Good Reason.  For purposes hereof, the Executive may
terminate his employment for "Good Reason" as a result of:

                                       16

<PAGE>
         (i)  any adverse change in the Executive's position or title as in
    effect at the time of the Reorganization Event of the Company, or the
    assignment to the Executive of any duties inconsistent with such position
    or title; 

         (ii) any reduction in the Executive's overall level of authority and
    responsibility with the Company as in effect at the time of the
    Reorganization Event of the Company;

         (iii) any reduction in the Executive's Annual Base Salary as in 
    effect at the time of the Reorganization Event of the Company;  

         (iv) any reduction in the Executive's target or maximum bonus
    percentage under the Company's annual bonus plan from the percentage in
    effect at the time of the Reorganization Event of the Company; 

         (v) a relocation by more than 50 miles of the Executive's principal
    place of business at the time of the Reorganization Event of the Company,
    or the Company's requiring the Executive to locate anywhere that is more
    than 50 miles from the Executive's principal place of business at the time
    of the Reorganization Event; 

         (vi) the failure by the Company to continue in effect any compensation
    plan in which the Executive is participating immediately prior to the
    Reorganization Event of the Company which is material to his total
    compensation, including but not limited to, the bonus plans, deferred
    compensation plans, equity incentive plans, unless an equitable arrangement
    (embodied in an ongoing substitute or alternative plan) has been made with
    respect to such plan, or the failure by the Company to continue the
    Executive's participation therein (or in such substitute or alternative
    plan) on a basis not materially less favorable, both in terms of the amount
    of benefits provided and the level of his participation relative to other
    participants, as existed immediately prior to the Reorganization Event of
    the Company; 

         (vii) the failure by the Company to continue to provide the Executive
    with benefits substantially similar to those enjoyed by the Executive under
    any of the Company's pension, savings and retirement plan, life insurance,
    medical, health and accident, or disability plans in which he was
    participating at the time of the Reorganization Event of the Company, the
    taking of any action by the Company which would directly or indirectly
    materially reduce any of such benefits or deprive the Executive of any
    material fringe benefit enjoyed by him at the time of the Reorganization
    Event of the Company, or the failure by the Company to provide the
    Executive with the number of paid vacation days to which he is entitled on
    the basis of years of service with the Company in accordance with the
    Company's normal vacation policy in effect at the time of the
    Reorganization Event of the Company;

         (viii) the failure of the Company to obtain a satisfactory agreement
    from any successor to assume and agree to perform this Agreement, as
    contemplated in Section 14 hereof; or 

                                       17

<PAGE>

         (ix)  a termination by the Executive for any reason (including,
    without limitation, retirement) during the thirty (30) day period
    immediately following the first (1st) anniversary of the consummation of
    the Reorganization Event of the Company.

         The Executive's right to terminate his employment pursuant to this 
Agreement for Good Reason shall not be affected by his incapacity due to 
physical or mental illness.  The Executive's continued employment shall not 
constitute consent to, or a waiver of rights with respect to, any 
circumstance constituting Good Reason hereunder."

              (b)  In the event of consummation of a Hostile Transaction, the 
provisions of Section 11 hereof (concerning restricted conduct) and Section 
12 hereof (concerning required cooperation) shall not be applicable to the 
Executive.

              (c)  For purposes hereof, a "Hostile Transaction" shall be any 
Reorganization Event which has, at any time prior to the consummation 
thereof, been designated by a resolution of the Board as potentially having 
an impact on the Executive and other of the Company's executives, such that 
it would be appropriate for the Executive (and such other executives) to be 
provided with the additional protection afforded by the foregoing definition 
of "Good Reason."

                                       18

<PAGE>

    IN WITNESS WHEREOF, the parties have executed these presents as of the day 
and year first above written.
    
    
    
                   DOUBLETREE CORPORATION
    
                   ________________________________
                   Name:    David L. Stivers
                   Title:   Senior Vice President
                            General Counsel and Secretary
    
                   EXECUTIVE
    
                   ________________________________
                   Name:
    
    
    
    
    
    
                                       19



<PAGE>

                              MERGER SEVERANCE AGREEMENT

     THIS MERGER SEVERANCE AGREEMENT (this "Agreement") is made as of this 1st
day of September, 1997, between PROMUS HOTEL CORPORATION (the "Company") and
                  (the "Executive").

                                       RECITALS

     WHEREAS, the Company considers it essential to the best interest of its
stockholders to foster the continuous employment of key management personnel,
and believes that the possibility of a reorganization event of the Company and
the uncertainty and questions which it may raise among management may result in
the departure or distraction of management personnel to the detriment of the
Company and its stockholders; and

     WHEREAS, the Board of Directors has determined that appropriate steps
should be taken to reinforce and encourage the continued attention and
dedication of members of the Company's management, including the Executive, to
their assigned duties without distraction in the face of potentially disturbing
circumstances arising from the possibility of a reorganization event of the
Company;

     NOW, THEREFORE, in consideration of the mutual premises set forth below and
for other good and valuable consideration, in order to induce the Executive to
remain in the employ of the Company, the Company agrees that the Executive shall
receive the severance benefits set forth in this agreement (this "Agreement") in
the event his employment with the Company terminates subsequent to a
"Reorganization Event" of the Company under the circumstances described below.

                                      AGREEMENT

     1.   DEFINITIONS

     The following terms used in this Agreement shall have the meanings given
below:

          (a)  "ANNUAL BASE SALARY" shall mean the Executive's gross annual
salary before any deductions, exclusions or any deferrals or contributions under
any Company plan or program, but excluding bonuses, incentive compensation,
employee benefits or any other non-salary form of compensation (determined
without regard to any reduction in Annual Base Salary that results in "Good
Reason" termination).

          (b)  "BOARD" shall mean the Board of Directors of the Company.

          (c)  "BONUS AMOUNT" shall mean the greater of (i) the dollar amount of
the annual bonus that would be payable to the Executive under the Company's
annual bonus plan applicable to the Executive, assuming payment at the target
level for the Executive's then current salary grade level for the then-current
full fiscal year (determined without regard to any reduction in target bonus
percentage that results in "Good Reason" termination), or (ii) the dollar amount
of

<PAGE>

the bonus paid or payable to the Executive under the Company's annual bonus 
plan for the most recently completed fiscal year under such plan. 
Notwithstanding the foregoing, if the Executive is a participant in the 
Company's Development Bonus Plan (or any successor plan), the "Bonus Amount" 
shall mean the greater of (i) the dollar amount of the annual bonus that 
would be payable at the Executive's then current grade level under the 
Company's Annual Management Bonus Plan (as opposed to the Development Bonus 
Plan), or (ii) the dollar amount of the bonus actually paid to the Executive 
during the most recently completed fiscal year under the Company's 
Development Bonus Plan, subject to a maximum amount equal to the target bonus 
under the Company's Annual Management Bonus Plan at the Executive's salary 
grade level for such plan year.

          (d)  "CODE" shall mean the Internal Revenue Code of 1986, as amended.

          (e)  "COMPANY" shall mean Promus Hotel Corporation, or any successor
corporation that assumes this Agreement under Section 14 hereof or otherwise
becomes bound by this Agreement.

          (f)  "COVERED TERMINATION" shall have the meaning given in Section 3
hereof. 

          (g)  "DATE OF TERMINATION" shall mean the effective date of the
Executive's Covered Termination pursuant to Section 3 hereof.

          (h)  "DISABILITY" shall mean the absence of the Executive from the
full-time performance of his duties with the Company for six consecutive months
as a result of incapacity due to physical or mental illness, provided the
Company has given 30-day advance written notice to the Executive and he has not
returned to the full-time performance of his duties.

          (i)  "REORGANIZATION EVENT" shall mean the occurrence of any of the
following after the date hereof:

               (i)  any "person" (as such term is used in Section 13(d) and
14(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
other than an employee benefit plan of the Company, or a trustee or other
fiduciary holding securities under an employee benefit plan of the Company,
becomes a "beneficial owner" (as defined in Rule 13d-3 under the Exchange Act),
directly or indirectly, of 25% or more of the Company's then outstanding voting
securities carrying the right to vote in elections of persons to the Board,
regardless of comparative voting power of such voting securities, and regardless
of whether or not the Board shall have approved such Reorganization Event; or

               (ii) during any period of two (2) consecutive years (not
including any period prior to the execution of this Agreement), individuals who
at the beginning of such period constitute the Board (the "Incumbent Board") and
any other new director (other than a director designated by a person who shall
have entered into an agreement with the Company to effect a transaction
described in clauses (i) or (iii) of this subsection) whose election by the
Board or nomination for election by the Company's stockholders was approved by a
vote of at least two-thirds (2/3) of the directors then still in office who
either were directors at the beginning of the

                                       2
<PAGE>

period or whose election or nomination for election was previously so 
approved (each such new director being considered a member of the "Incumbent 
Board"), cease for any reason to constitute a majority thereof; or

               (iii)     the holders of securities of the Company entitled to
vote thereon approve of the following:

               (A)  a merger or consolidation of the Company with any other
corporation regardless of which entity is the surviving company, other than a
merger or consolidation which would result in the voting securities of the
Company carrying the right to vote in elections of persons to the board
outstanding immediately prior thereto continuing to represent (either by
remaining outstanding or by being converted into voting securities of the
surviving entity) at least 66 2/3% of the Company's then-outstanding voting
securities carrying the right to vote in elections of persons to the board or
such securities of such surviving entity outstanding immediately after such
merger or consolidation, or

               (B) a plan of complete liquidation of the Company or an agreement
for the sale or disposition by the Company of all or substantially all of the
Company's assets.

     Notwithstanding the definition of "Reorganization Event" of the Company as
set forth in this Agreement, the Board shall have full and final authority,
which shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the occurrence
of such Reorganization Event and any incidental matters relating thereto, with
respect to a transaction or series of transactions which have resulted or will
result in a substantial portion of the assets or business of the Company (as
determined immediately prior to the transaction or series of transactions by the
Board in its sole discretion which determination shall be final and conclusive)
being held by a corporation at least 66 2/3% of whose voting securities are
held, immediately following such transaction or series of transactions, by
holders of the voting securities of the Company (determined immediately prior to
such transaction or series of transactions).  The Board may exercise such
discretionary authority without regard to whether one or more of the
transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth in this
Agreement.  It is hereby understood and agreed that the consummation of the
business combination contemplated by the Agreement and Plan of Merger dated as
of September 1, 1997 among Doubletree Corporation, the Company and Parent
Holding Corp. shall constitute a Reorganization Event for purposes of this
Agreement.

     2.   TERM OF AGREEMENT

     This Agreement shall commence on the date first written above and shall
continue in effect though December 31, 1998; provided, however, that commencing
on January 1, 1999 and each January 1 thereafter, the term of this Agreement
shall automatically be extended for one additional year unless, not later than
September 30 of the preceding year, the Company shall have given notice that it
does not wish to extend this Agreement; and provided further, that the incumbent
Board may terminate this agreement at any time prior to the consummation of the

                                       3
<PAGE>

business combination contemplated by the above referenced Agreement and Plan of
Merger (the "Merger") if the Board finds that the consummation of the Merger is
no longer viable or in the best interest of the Company.  Notwithstanding the
foregoing, no notice of non-renewal given by the Board shall be effective with
respect to a particular Reorganization Event if given after the occurrence of
the following events: (i) the Company enters into an agreement or letter of
intent, the consummation of which would result in such Reorganization Event,
(ii) any "person" makes a public announcement of its intention to take or
consider taking actions that would result in such Reorganization Event, or (iii)
any "person" (as defined above) initiates a tender offer which, if consummated,
would result in such Reorganization Event (it being understood that this
sentence shall not apply with respect to any unrelated Reorganization Event). 
If a Reorganization Event of the Company shall have occurred during the original
or extended term of this Agreement, the term of this Agreement shall continue in
force and effect until the satisfaction of all of the Company's obligations to
the Executive as provided hereunder.

     3.   COVERED TERMINATION

          (a)  GENERAL. The Executive shall be treated as having incurred a
"Covered Termination" hereunder if the Company terminates his employment other
than for cause, or if the Executive gives notice of voluntary termination,
within the "Coverage Period" defined below.  The Executive shall not be treated
as having incurred a Covered Termination if his employment is terminated as a
result of death or Disability.  For purposes hereof, the Coverage  Period shall
be a period of two (2) years following the consummation of a Reorganization
Event provided, however, that if the Reorganization Event is a result of the
proposed merger (the "Proposed Merger") between Doubletree Corporation and
Promus Hotel Corporation pursuant to the terms of an Agreement of Plan and
Merger dated September 1, 1997, the Coverage Period shall be the period
commencing on the consummation date of the Proposed Merger and expiring on the
later of (i) the second anniversary of such consummation date or (ii) the date
that is one year after Raymond E. Schultz ceases to be the Chairman of the Board
and Chief Executive Officer of  Parent Holding Corp.

          (b)  TERMINATION FOR CAUSE. Termination by the Company of the
Executive's employment for "Cause" shall mean termination as a result of: 

               (i)  the Executive engaging in willful gross neglect of his
duties with the Company, or the Executive's fraud or dishonesty in connection
with his performance of duties to the Company, in either case which has a
materially detrimental effect on the business or operations of the Company; or 

               (ii) the Executive's conviction by a court of competent
jurisdiction of any crime (or upon entering a plea of guilty or nolo contendere
to a charge of any crime) constituting a felony.

     The Date of Termination for a termination for Cause shall be the date
specified by the Company.

                                       4
<PAGE>

          (c)  TERMINATION BY EXECUTIVE.  The Executive may give notice of his
intent to terminate his employment for any reason during the Covered Period, and
it shall be treated as a Covered Termination hereunder.  The Executive shall
provide the Company with 30-days advance written notice, and the Date of
Termination shall be the expiration of such 30-day period.
     
     4.   SEVERANCE PAYMENT  

     The amount of the severance payment to be paid to the Executive upon
Covered Termination shall be the amount determined by multiplying 3.00 times the
sum of:

          (a)  the Executive's Annual Base Salary as in effect immediately prior
to the Date of Termination; plus, 

          (b)  the Executive's Bonus Amount applicable for the fiscal year in
which the Date of Termination occurs; plus, 

          (c)  a benefit allowance of 25% of the Executive's Annual Base Salary
as in effect immediately prior to the Date of Termination.

     5.   OTHER SEVERANCE BENEFITS

     In addition to the severance payment provided under Section 4 hereof, the
Executive shall be entitled to the following benefits and other rights in the
event of the his Covered Termination:

          (a)  ACCRUED RIGHTS.  The Executive shall be entitled to the following
payments and benefits in respect of accrued compensation rights upon a Covered
Termination, in addition to other rights provided under this Agreement: 

               (i)  payment of any accrued but unpaid Annual Base Salary through
the Date of Termination and payment of any annual bonus (for any completed
fiscal year) that is awarded subsequent to the Date of Termination by the
Company in its sole discretion under the terms of the annual bonus plan then in
effect. 

               (ii) payment of a pro-rata portion of the Bonus Amount for the
fiscal year of the Company in which the Covered Termination occurs, based on the
number of days of such year prior to the Date of Termination;  

               (iii)     all benefits and rights accrued under the employee
benefit plans, fringe benefits programs and payroll practices of the Company in
accordance with their terms (including, without limitations, employee pension,
employee welfare, incentive bonus, stock incentive plans, and any accrued
vacation or sick pay time); and 

                                       5
<PAGE>
               
               (iv) a payment equal to the forfeited portion of the Executive's
account balance under the Company's tax qualified deferred compensation plan as
a result of failure to satisfy vesting requirements due to a Covered
Termination.

          (b)  OUTPLACEMENT SERVICES. Upon the occurrence of a Covered
Termination, the Executive shall be provided, at the Company's sole expense,
with professional outplacement services consistent with the Executive's duties
or profession and of a type and level customary for persons in his position, as
selected by the Company, subject to reasonable limitations established by the
Company on a uniform basis for similarly situated executives as to duration and
dollar amounts.

     (c)  Equity Rights.  

               (i) Upon the occurrence of a Covered Termination as a result of a
termination by the Company other than for "Cause," all outstanding awards of
stock options and restricted stock which have been granted to the Executive
shall immediately become fully vested and exercisable.

               (ii) Upon  the occurrence of a Covered Termination as a result of
the Executive's voluntary termination, all outstanding awards of stock options
and restricted stock that could otherwise have become exercisable (either based
on continued service or performance vesting standards) on or before the second
anniversary of the Date of Termination shall become vested and exercisable.  Any
remaining unvested portion of the awards shall be forfeited on the Date of
Termination (unless otherwise provided in the applicable award agreement).

     6.   EXCISE TAX REIMBURSEMENT  

     In the event it shall be determined that any payment or distribution by the
Company or any other person or entity to or for the Executive's benefit, whether
paid or payable or distributed or distributable pursuant to the terms of this
Agreement or otherwise, or whether prior to or following the Covered Termination
in connection with, or arising out of, the Executive's employment with the
Company or a Reorganization Event of the Company (a "Payment") will be subject
to the tax (the "Excise Tax") imposed by section 4999 of the Code, the Company
shall pay to the Executive at the time specified in Section 7 hereof, an
additional amount (the "Gross-Up Payment") such that the net amount retained by
the Executive, after deduction of any Excise Tax on the Payments and any federal
(and state and local) income tax, employment tax, and Excise Tax upon the
payment provided for by this paragraph, shall be equal to the amount of the
Payments.  For purposes of determining whether any of the Payments will be
subject to the Excise Tax and the amount of such Excise Tax the following will
apply: 

          (a)  any payments or benefits received or to be received by the
Executive in connection with a Reorganization Event of the Company or his
termination of employment (whether pursuant to the terms of this Agreement or
any other plan, arrangement or agreement with the Company, any person whose
actions result in a Reorganization Event of the Company or any person affiliated
with the Company or such person) shall be treated as "parachute

                                       6
<PAGE>

payments" within the meaning of section 280G(b)(2) of the Code, and all 
"excess parachute payments" within the meaning of section 280G(b)(1) shall be 
treated as subject to the Excise Tax, unless in the opinion of tax counsel 
selected by the Company's independent auditors and acceptable to the 
Executive such other payments or benefits (in whole or in part) do not 
constitute parachute payments, or such excess parachute payments (in whole or 
in part) represent reasonable compensation for services actually rendered 
within the meaning of section 280G(b)(4) of the Code in excess of the base 
amount within the meaning of section 280G(b)(3) of the Code, or are otherwise 
not subject to the Excise Tax; and

          (b)  the value of any non-cash benefits or any deferred payment or
benefit shall be determined by the Company's independent auditors in accordance
with proposed, temporary or final regulations under Sections 280G(d)(3) and (4)
of the Code or, in the absence of such regulations, in accordance with the
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of
determining the amount of the Gross-Up Payment, the Executive shall be deemed to
pay federal income taxes at the highest marginal rate of federal income taxation
in the calendar year in which the Gross-Up Payment is to be made and state and
local income taxes at the highest marginal rate of taxation in the state and
locality of the Executive's residence on the Date of Termination, net of the
maximum reduction in federal income taxes which could be obtained from deduction
of such state and local taxes.  In the event that the amount of Excise Tax
attributable to Payments is subsequently determined to be less than the amount
taken into account hereunder at the time of termination of the Executive's
employment, he shall repay to the Company at the time that the amount of such
reduction in Excise Tax is finally determined the portion of the Gross-Up
Payment attributable to such reduction (plus the portion of the Gross-Up Payment
attributable to the Excise Tax, employment tax and federal (and state and local)
income tax imposed on the Gross-Up Payment being repaid by the Executive if such
repayment results in a reduction in Excise Tax and/or a federal (and state and
local) income tax deduction) plus interest on the amount of such repayment at
the rate provided in section 1274(b)(2) (B) of the Code.  In the event that the
Excise Tax attributable to Payments is determined to exceed the amount taken
into account hereunder at the time of the termination of the Executive's
employment (including by reason of any payment the existence or amount of which
cannot be determined at the time of the Gross-Up Payment), the Company shall
make an additional gross-up payment in respect of such excess (plus any interest
payable with respect to such excess) at the time that the amount of such excess
is finally determined.  

     7.   METHOD OF PAYMENT

     The payments provided for in Sections 4, 5 and 6 hereof shall be made in a
cash lump-sum payment, net of any required tax withholding, upon the later of
(i) the fifth (5th) business day following the Date of Termination or (ii) the
expiration of the seven (7) day revocation period applicable under the release
of claims referred to in Section 10 hereof; provided, however, that if the
amounts of such payments cannot be finally determined on or before such day, the
Company shall pay on such day an estimate, as determined in good faith by the
Company, of the minimum amount of such payments.  Any payment required under
Sections 4, 5 or 6 or any other provision of this Agreement that is not made in
a timely manner shall bear interest at a rate equal to one-hundred twenty (120)
percent of the monthly compounded applicable federal rate, as in

                                       7
<PAGE>

effect under Section 1274(d) of the Code for the month in which the payment 
is required to be made.  In the event that the amount of the estimated 
payments exceeds the amount subsequently determined to have been due, such 
excess shall constitute a loan by the Company payable on the fifth day after 
demand by the Company with interest at the rate provided under Section 
1274(d) of the Code until paid.

     8.   RELOCATION EXPENSES  

     The Executive shall be entitled to a reimbursement payment from the Company
equal to his reasonable moving expenses (determined in accordance with Company's
relocation policy) incurred in connection with the Executive's written
acceptance of a position with the Company requiring his relocation to a
metropolitan area, other than the metropolitan area where his office is located
at the time of the Reorganization Event of the Company.  The Company shall pay
the Executive an additional payment in an amount such that the net amount
retained by the Executive after deduction for any federal, state, and local
income tax, employment tax and any excise tax on the reimbursement payment shall
equal the amount of the reimbursement payment.  

     9.   NO MITIGATION OR OFFSET

     The Executive shall not be required to mitigate the amount of any severance
payment or benefit provided under this Agreement by seeking other employment or
otherwise.  The amount of any payment or benefit to which the Executive becomes
entitled hereunder shall not be reduced by any compensation earned by the
Executive as the result of employment by another employer, by retirement
benefits, nor by offset against any amount claimed to be owed to the Company by
reason of a claimed breach by the Executive of his obligations under Sections 11
or 12 hereof or otherwise (except that offset shall apply as specifically
provided in Section 8 hereof concerning relocation expenses and Section 21
hereof concerning other severance payments).  

     10.  RELEASE OF CLAIMS

     As conditions of Executive's entitlement to the severance payments and
benefits provided by this Agreement, the Executive shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit A (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).  

     11.  RESTRICTION ON CONDUCT OF EXECUTIVE

          (a)  GENERAL.  The Executive and the Company understand and agree that
the purpose of the provisions of this Section 11 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Executive's right to work, earn a
living, or acquire and possess property from the fruits of his labor.  The
Executive hereby acknowledges that the post-employment restrictions set forth in
this Section 11 are reasonable and that they do not, and will not, unduly impair
his ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the

                                       8
<PAGE>

limitations of reasonableness imposed by law upon restrictions set forth 
herein, the Executive shall be subject to the restrictions set forth in this 
Section 11.

          (b)  DEFINITIONS.  The following capitalized terms used in this
Section 11 shall have the meanings assigned to them below, which definitions
shall apply to both the singular and the plural forms of such terms:

     "CONFIDENTIAL INFORMATION" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.

     "DETERMINATION DATE" means the date of termination of the Executive's
employment with the Company for any reason whatsoever or any earlier date
(during the Restricted Period) of an alleged breach of the Restrictive Covenants
by the Executive.

     "PERSON" means any individual or any corporation, partnership, joint
venture, association or other entity or enterprise.

     "PRINCIPAL OR REPRESENTATIVE" means a principal, owner, partner,
shareholder, joint venturer, member, trustee, director, officer, manager,
employee, agent, representative or consultant.

     "PROTECTED EMPLOYEES" means employees of the Company or its affiliated
companies who were employed by the Company or its affiliated companies at any
time within six (6) months prior to the Determination Date.

     "RESTRICTED PERIOD" means the period of the Executive's employment with the
Company plus a period extending two (2) years from the date of termination of
employment.

     "RESTRICTIVE COVENANTS" means the restrictive covenants contained in
Section 11(c) hereof.

          (c)  RESTRICTIVE COVENANTS.

               (i)  RESTRICTION ON DISCLOSURE AND USE OF CONFIDENTIAL
INFORMATION.  The Executive understands and agrees that the Confidential
Information constitutes a valuable asset of the Company and its affiliated
entities, and may not be converted to the Executive's own use.  Accordingly, the
Executive hereby agrees that the Executive shall not, directly or indirectly, at
any time during the Restricted Period reveal, divulge or disclose to any Person
not expressly

                                       9
<PAGE>

authorized by the Company any Confidential Information, and the
Executive shall not, directly or indirectly, at any time during the Restricted
Period use or make use of any Confidential Information in connection with any
business activity other than that of the Company.  The parties acknowledge and
agree that this Agreement is not intended to, and does not, alter either the
Company's rights or the Executive's obligations under any state or federal
statutory or common law regarding trade secrets and unfair trade practices.

               (ii)  NONSOLICITATION OF PROTECTED EMPLOYEES.  The Executive
understands and agrees that the relationship between the Company and each of its
Protected Employees constitutes a valuable asset of the Company and may not be
converted to the Executive's own use.  Accordingly, the Executive hereby agrees
that during the Restricted Period the Executive shall not directly or indirectly
on the Executive's own behalf or as a Principal or Representative of any Person
solicit any Protected Employee to terminate his or her employment with the
Company.

               (iii)  NONINTERFERENCE WITH COMPANY OPPORTUNITIES.  The
Executive understands and agrees that all hotel development opportunities with
which he is involved during his employment with the Company constitute valuable
assets of the Company and its affiliated entities, and may not be converted to
Executive's own use.  Accordingly, the Executive hereby agrees that during the
Restricted Period the Executive shall not directly or indirectly on the
Executive's own behalf or as a Principal or Representative of any Person,
interfere with, solicit, pursue, or in any way make use of any such hotel
development opportunities.

          (d)  EXCEPTIONS FROM DISCLOSURE RESTRICTIONS.  Anything herein to the
contrary notwithstanding, the Executive shall not be restricted from disclosing
or using Confidential Information that: (i) is or becomes generally available to
the public other than as a result of an unauthorized disclosure by the Executive
or his agent; (ii) becomes available to the Executive in a manner that is not in
contravention of applicable law from a source (other than the Company or its
affiliated entities or one of its or their officers, employees, agents or
representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or other similar
agreement; (iii) was known to the Executive on a non-confidential basis and not
in contravention of applicable law or a confidentiality or other similar
agreement before its disclosure to the Executive by the Company or its
affiliated entities or one of its or their officers, employees, agents or
representatives; or (iv) is required to be disclosed by law, court order or
other legal process; provided, however, that in the event disclosure is required
by law, the Executive shall provide the Company with prompt notice of such
requirement so that the Company may seek an appropriate protective order prior
to any such required disclosure by the Executive.

          (e)  ENFORCEMENT OF THE RESTRICTIVE COVENANTS.

               (i)  RIGHTS AND REMEDIES UPON BREACH.  In the event the Executive
breaches, or threatens to commit a breach of, any of the provisions of the
Restrictive Covenants, the Company shall have the right and remedy to enjoin,
preliminarily and permanently, the Executive from violating or threatening to
violate the Restrictive Covenants and to have the Restrictive Covenants
specifically enforced by any court of competent jurisdiction, it being

                                       10
<PAGE>

agreed that any breach or threatened breach of the Restrictive Covenants 
would cause irreparable injury to the Company and that money damages would 
not provide an adequate remedy to the Company.  The rights referred to in the 
preceding sentence shall be independent of any others and severally 
enforceable, and shall be in addition to, and not in lieu of, any other 
rights and remedies available to the Company at law or in equity.

               (ii) SEVERABILITY OF COVENANTS.  The Executive acknowledges and
agrees that the Restrictive Covenants are reasonable and valid in time and space
and in all other respects.  If any court determines that any Restrictive
Covenants, or any part thereof, is invalid or unenforceable, the remainder of
the Restrictive Covenants shall not thereby be affected and shall be given full
effect, without regard to the invalid portions. 

     12.  COOPERATION IN FUTURE MATTERS

     The Executive hereby agrees that, for a period of three (3) years following
his Date of Termination, he shall cooperate with the Company's reasonable
requests relating to matters that pertain to the Executive's employment by the
Company, including, without limitation, providing information or limited
consultation as to such matters, participating in legal proceedings,
investigations or audits on behalf of the Company, or otherwise making himself
reasonably available to the Company for other related purposes.  Any such
cooperation shall be performed at times scheduled taking into consideration the
Executive's other commitments, and the Executive shall be compensated at a
reasonable hourly or per diem rate to be agreed by the parties to the extent
such cooperation is required on more than an occasional and limited basis.  The
Executive shall not be required to perform such cooperation to the extent it
conflicts with any requirements of exclusivity of service for another employer
or otherwise, nor in any manner that in the good faith belief of the Executive
would conflict with his rights under or ability to enforce this Agreement.

     13.  INDEMNIFICATION

          (a)  Following the Date of Termination, the Company agrees that it
will, indemnify and hold harmless the Executive, against any costs or expenses
(including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities or amounts paid in settlement incurred in connection with any claim,
action, suit, proceeding or investigation, whether civil, criminal,
administrative or investigative, arising out of or pertaining to matters
existing or occurring at or prior to the Date of Termination, whether asserted
or claimed prior to, at or after the Date of Termination, to the fullest extent
that the Company would have been permitted under Delaware law and its
certificate of incorporation or bylaws in effect on the date hereof to indemnify
the Executive (and the Company shall also advance expenses as incurred to the
fullest extent permitted under applicable law, provided the Executive provides
an undertaking to repay advances if it is ultimately determined that the
Executive is not entitled to indemnification).

          (b)  For a period of six years after the Date of Termination, the
Company shall maintain (to the extent available in the market) in effect a
director's and officer's liability insurance policy covering with coverage in
amount and scope at least as favorable as the

                                       11
<PAGE>

Company's existing coverage on the Date of Termination; provided that in no 
event shall the Company be required to expend in the aggregate in excess of 
200% of the annual premium paid by the Company for such coverage as of the 
Date of Termination; and if such premium would at any time exceed 200% of the 
such amount, then the Company shall maintain insurance policies which provide 
the maximum and best coverage available at an annual premium equal to 200% of 
such amount.

          (c)  The provisions of this Section 13 are intended to be an addition
to the rights otherwise available to the Executive by law, charter, statute,
bylaw or separate agreement between the Company and the Executive.  The Company
shall continue to honor any indemnification agreement between the Company and
the Executive entered into prior to the Date of Termination in accordance with
the terms thereof.

     14.  SUCCESSORS, BINDING AGREEMENT.  

          (a)  The Company will require any successor (whether direct or
indirect, by purchase, merger, consolidation or otherwise) to all or
substantially all of the business and/or assets of the Company to expressly
assume and agree to perform this Agreement in the same manner and to the same
extent that the Company would be required to perform it if no such succession
had taken place.  Failure of the Company to obtain such assumption and agreement
prior to the effectiveness of any such succession shall be a breach of this
Agreement and shall entitle the Executive to compensation from the Company in
the same amount and on the same terms as the Executive would be entitled to
hereunder if he terminated his employment for Good Reason following a
Reorganization Event of the Company, except that for purposes of implementing
the foregoing, the date on which any such succession becomes effective shall be
deemed the Date of Termination.  As used in this Agreement, "Company" shall mean
the Company as herein before defined and any successor to its business and/or
assets as aforesaid which assumes and agrees to perform this Agreement by
operation of law, or otherwise.  

          (b)  This Agreement shall inure to the benefit of and be enforceable
by the Executive's personal or legal representatives, executors, administrators,
successors, heirs, distributees, devises and legatees.  If the Executive should
die while any amount remains payable to him hereunder, all such amounts, unless
otherwise provided herein, shall be paid in accordance with the terms of this
Agreement to the Executive's devisee, legatee or other designee or, if there is
no such designee, to the Executive's estate.  

     15.  NOTICE  

     Any notice required or permitted to be given by this Agreement shall be
effective only if in writing, delivered personally against receipt therefor or
mailed by certified or registered mail, return receipt requested, to the parties
at the addresses hereinafter set forth, or at such other places that either
party may designate by notice to the other.

     Notice to the Company shall be addressed to:

          Promus Hotel Corporation

                                       12
<PAGE>

          755 Crossover Lane
          Memphis, Tennessee  38117
          Attention:  General Counsel

     Notice to the Executive shall be addressed to him at the business address
of the Company where the Executive is employed, with a copy to him at his home
address as follows:

     All such notices shall be deemed effectively given five (5) days after the
same has been deposited in a post box under the exclusive control of the United
States Postal Service.

     16.  MISCELLANEOUS  

     No provision of this Agreement may be modified, waived or discharged unless
such waiver, modification or discharge is agreed to in writing and signed by the
Executive and such officer of the Company as may be specifically designated by
the Board.  No waiver by either party hereto at any time of any breach by the
other party hereto of, or compliance with, any condition or provision of this
Agreement to be performed by such other party shall be deemed a waiver of
similar or dissimilar provisions or conditions at the same or at any prior or
subsequent time.  No agreement or representations, oral or otherwise, express or
implied, with respect to the subject matter hereof have been made by either
party which are not expressly set forth in this Agreement.  The validity,
interpretation, construction and performance of this Agreement shall be governed
by the laws of the State of Delaware.  The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision of this Agreement, which shall remain in full force and
effect.  

     17.  COUNTERPARTS  

     This Agreement may be executed in several counterparts, each of which shall
be deemed to be an original but all of which together will constitute one and
the same instrument.

     18.  ARBITRATION  

     Any dispute or controversy arising under or in connection with this
Agreement shall be settled exclusively by arbitration in Memphis, Tennessee
accordance with the rules of the American Arbitration Association then in
effect.  Judgment may be entered on the arbitrator's award in any court having
jurisdiction. 

     19.  PAYMENT OF LEGAL FEES 

     The Company shall pay all reasonable legal fees and expenses incurred by
the Executive in connection with any arbitration (or other proceeding whether or
not instituted by the Company or the Executive), relating to the interpretation
or enforcement of any provision of this Agreement (including any action seeking
to obtain or enforce any right or benefit provided by this Agreement) or in
connection with any tax audit or proceeding relating to the application of
Section 4999 of the Code to any payment or benefit provided by the Company.

                                       13
<PAGE>

     20.  NO RESTRICTIONS ON EMPLOYMENT RIGHTS

     Nothing in this Agreement shall confer on the Executive any right to
continue in the employ of the Company or shall interfere with or restrict in any
way the rights of the Company, which are hereby expressly reserved, to discharge
the Executive at any time for any reason whatsoever, with or without Cause,
subject to the requirements of this Agreement.  Nothing in this Agreement shall
restrict the right of the Executive to terminate his employment with the Company
at any time for any reason whatsoever, with or without Good Reason.

     21.  OTHER SEVERANCE AGREEMENTS

     This Agreement is not intended to, and shall not, in any way supersede,
amend or affect the Executive's Severance Agreement, dated as of June 30, 1995
with the Company (the "Existing Severance Agreement"), as the Existing Severance
Agreement is being amended concurrently herewith.  However, in no event shall
the Executive receive payments or other benefits under both the Existing
Severance Agreement and this Agreement.  In the event that the Executive becomes
entitled to receive severance payment or other benefits under both the Existing
Severance Agreement and under this Agreement, the Executive may elect which
agreement shall apply for all purposes, including payments and benefits (but,
e.g., may not elect one particular benefit under one agreement and another
benefit under the other agreement) by filing a written election with the Company
at any time before the Executive receives his first severance payment under
either of such agreements.

                                       14
<PAGE>

     22.  HOSTILE TRANSACTION PROVISION

          Notwithstanding anything elsewhere in this Agreement to the contrary:

     (a)  In the event of consummation of a Hostile Transaction, the provisions
of Section 11 hereof and Section 12 hereof shall not be applicable to the
Executive.

     (b)  For purposes, hereof, a "Hostile Transaction" shall be any
Reorganization Event which has, at any time prior to the consummation thereof,
been designated such by a resolution of the incumbent Board.

                                       15
<PAGE>

     IN WITNESS WHEREOF, the parties have executed these presents as of the day
and year first above written.

                              PROMUS HOTEL CORPORATION


                              ________________________________
                              Name:  Ralph B. Lake
                              Title: Senior Vice President

                              EXECUTIVE


                              ________________________________
                              Name:  
                              

                                       16

<PAGE>

                             MERGER SEVERANCE AGREEMENT

    THIS MERGER SEVERANCE AGREEMENT (this "Agreement") is made as of this __th
day of December, 1997, between PARENT HOLDING CORP. (the "Company") and
[Name of Employee] (the "Employee").

                                       RECITALS

    WHEREAS, the Company considers it essential to the best interest of its
stockholders to foster the continuous employment of key management personnel,
and believes that the possibility of a reorganization event of the Company and
the uncertainty and questions which it may raise among management may result in
the departure or distraction of management personnel to the detriment of the
Company and its stockholders; and

    WHEREAS, the Board of Directors has determined that appropriate steps
should be taken to reinforce and encourage the continued attention and
dedication of members of the Company's management, including the Employee, to
their assigned duties without distraction in the face of potentially disturbing
circumstances arising from the possibility of a reorganization event of the
Company;

    NOW, THEREFORE, in consideration of the mutual premises set forth below and
for other good and valuable consideration, in order to induce the Employee to
remain in the employ of the Company, the Company agrees that the Employee shall
receive the severance benefits set forth in this agreement (this "Agreement") in
the event his employment with the Company terminates subsequent to a
"Reorganization Event" of the Company under the circumstances described below.

                                      AGREEMENT

    1.   DEFINITIONS

    The following terms used in this Agreement shall have the meanings given
below:

         (a)  "ANNUAL BASE SALARY" shall mean the Employee's gross annual
salary before any deductions, exclusions or any deferrals or contributions under
any Company plan or program, but excluding bonuses, incentive compensation,
employee benefits or any other non-salary form of compensation (determined
without regard to any reduction in Annual Base Salary that results in "Good
Reason" termination).

         (b)  "BOARD" shall mean the Board of Directors of the Company.

         (c)  "BONUS AMOUNT" shall mean the greater of (i) the dollar amount of
the annual bonus that would be payable to the Employee under the Company's
annual bonus plan applicable to the Employee, assuming payment at the target
level for the Employee's then current salary grade level for the then-current
full fiscal year (determined without regard to any reduction in target bonus
percentage that results in "Good Reason" termination), or (ii) the dollar amount
of 


                                       1

<PAGE>

the bonus paid or payable to the Employee under the Company's annual bonus
plan for the most recently completed fiscal year under such plan. 
Notwithstanding the foregoing, if the Employee is a participant in the Company's
Development Bonus Plan (or any successor plan), the "Bonus Amount" shall mean
the greater of (i) the dollar amount of the annual bonus that would be payable
at the Employee's then current grade level under the Company's Annual Management
Bonus Plan (as opposed to the Development Bonus Plan), or (ii) the dollar amount
of the bonus actually paid to the Employee during the most recently completed
fiscal year under the Company's Development Bonus Plan, subject to a maximum
amount equal to the target bonus under the Company's Annual Management Bonus
Plan at the Employee's salary grade level for such plan year.

         (d)  "CODE" shall mean the Internal Revenue Code of 1986, as amended.

         (e)  "COMPANY" shall mean Promus Hotel Corporation, or any successor
corporation that assumes this Agreement under Section 14 hereof or otherwise
becomes bound by this Agreement.

         (f)  "COVERED TERMINATION" shall have the meaning given in Section 3
hereof. 

         (g)  "DATE OF TERMINATION" shall mean the effective date of the
Employee's Covered Termination pursuant to Section 3 hereof.

         (h)  "DISABILITY" shall mean the absence of the Employee from the
full-time performance of his duties with the Company for six consecutive months
as a result of incapacity due to physical or mental illness, provided the
Company has given 30-day advance written notice to the Employee and he has not
returned to the full-time performance of his duties.

         (i)  "REORGANIZATION EVENT" shall mean the occurrence of any of the
following after the date hereof:

              (i)  any "person" (as such term is used in Section 13(d) and
14(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
other than an employee benefit plan of the Company, or a trustee or other
fiduciary holding securities under an employee benefit plan of the Company,
becomes a "beneficial owner" (as defined in Rule 13d-3 under the Exchange Act),
directly or indirectly, of 25% or more of the Company's then outstanding voting
securities carrying the right to vote in elections of persons to the Board,
regardless of comparative voting power of such voting securities, and regardless
of whether or not the Board shall have approved such Reorganization Event; or

              (ii) during any period of two (2) consecutive years (not
including any period prior to the execution of this Agreement), individuals who
at the beginning of such period constitute the Board (the "Incumbent Board") and
any other new director (other than a director designated by a person who shall
have entered into an agreement with the Company to effect a transaction
described in clauses (i) or (iii) of this subsection) whose election by the
Board or nomination for election by the Company's stockholders was approved by a
vote of at least two-thirds (2/3) of the directors then still in office who
either were directors at the beginning of the period or whose election or
nomination for election was previously so approved (each such new

                                      2

<PAGE>

director being considered a member of the "Incumbent Board"), cease for 
any reason to constitute a majority thereof; or

              (iii)     the holders of securities of the Company entitled to
vote thereon approve of the following:

              (A)  a merger or consolidation of the Company with any other
corporation regardless of which entity is the surviving company, other than a
merger or consolidation which would result in the voting securities of the
Company carrying the right to vote in elections of persons to the board
outstanding immediately prior thereto continuing to represent (either by
remaining outstanding or by being converted into voting securities of the
surviving entity) at least 66 2/3% of the Company's then-outstanding voting
securities carrying the right to vote in elections of persons to the board or
such securities of such surviving entity outstanding immediately after such
merger or consolidation, or

              (B) a plan of complete liquidation of the Company or an agreement
for the sale or disposition by the Company of all or substantially all of the
Company's assets.

    Notwithstanding the definition of "Reorganization Event" of the Company as
set forth in this Agreement, the Board shall have full and final authority,
which shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the occurrence
of such Reorganization Event and any incidental matters relating thereto, with
respect to a transaction or series of transactions which have resulted or will
result in a substantial portion of the assets or business of the Company (as
determined immediately prior to the transaction or series of transactions by the
Board in its sole discretion which determination shall be final and conclusive)
being held by a corporation at least 66 2/3% of whose voting securities are
held, immediately following such transaction or series of transactions, by
holders of the voting securities of the Company (determined immediately prior to
such transaction or series of transactions).  The Board may exercise such
discretionary authority without regard to whether one or more of the
transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth in this
Agreement.  It is hereby understood and agreed that the consummation of the
business combination contemplated by the Agreement and Plan of Merger dated as
of September 1, 1997 among Doubletree Corporation, the Company and Parent
Holding Corp. shall constitute a Reorganization Event for purposes of this
Agreement.

    2.   TERM OF AGREEMENT

    This Agreement shall commence on the date first written above and shall
continue in effect though December 31, 1998; provided, however, that commencing
on January 1, 1999 and each January 1 thereafter, the term of this Agreement
shall automatically be extended for one additional year unless, not later than
September 30 of the preceding year, the Company shall have given notice that it
does not wish to extend this Agreement; and provided further, that the incumbent
Board may terminate this agreement at any time prior to the consummation of the
business combination contemplated by the above referenced Agreement and Plan of
Merger (the "Merger") if the Board finds that the consummation of the Merger is
no longer viable or in the 

                                      3
<PAGE>

best interest of the Company.  Notwithstanding the foregoing, no notice 
of non-renewal given by the Board shall be effective with respect to a 
particular Reorganization Event if given after the occurrence of the 
following events: (i) the Company enters into an agreement or letter of 
intent, the consummation of which would result in such Reorganization 
Event, (ii) any "person" makes a public announcement of its intention to 
take or consider taking actions that would result in such Reorganization 
Event, or (iii) any "person" (as defined above) initiates a tender offer 
which, if consummated, would result in such Reorganization Event (it 
being understood that this sentence shall not apply with respect to any 
unrelated Reorganization Event). If a Reorganization Event of the 
Company shall have occurred during the original or extended term of this 
Agreement, the term of this Agreement shall continue in force and effect 
until the satisfaction of all of the Company's obligations to the 
Employee as provided hereunder.

    3.   COVERED TERMINATION

         (a)  GENERAL.  The Employee shall be treated as having incurred a
"Covered Termination" hereunder if his employment is terminated by the Company
other than for cause or if the Employee gives notice of termination for Good
Reason (as described below) within a period of two (2) years following the
consummation of a Reorganization Event of the Company.  The Employee shall not
be treated as having incurred a Covered Termination if his employment is
terminated as a result of death or Disability.

         (b)  TERMINATION FOR CAUSE. Termination by the Company of the
Employee's employment for "Cause" shall mean termination as a result of: 

              (i)  the Employee engaging in willful gross neglect of his duties
with the Company, or the Employee's fraud or dishonesty in connection with his
performance of duties to the Company, in either case which has a materially
detrimental effect on the business or operations of the Company; or 

              (ii) the Employee's conviction by a court of competent
jurisdiction of any crime (or upon entering a plea of guilty or nolo contendere
to a charge of any crime) constituting a felony.

    The Date of Termination for a termination for Cause shall be the date
specified by the Company.

         (c)  TERMINATION FOR GOOD REASON.  For purposes hereof, the Employee
may terminate his employment for "Good Reason" as a result of: 

               (i) a material adverse change in the Employee's position or
title as in effect at the time of the Reorganization Event of the Company; 

              (ii) a substantial reduction in the Employee's overall level of
authority and responsibility with the Company as in effect at the time of the
Reorganization Event of the Company;

                                      4
<PAGE>

             (iii) any reduction in the Employee's Annual Base Salary as
in effect at the time of the Reorganization Event of the Company;  

              (iv) any reduction in the Employee's target or maximum bonus
percentage under the Company's annual bonus plan from the percentage in effect
at the time of the Reorganization Event of the Company; or

              (v)  a relocation by more than 50 miles from the Employee's
principal place of business at the time of the Reorganization Event of the
Company, or the Company's requiring the Employee to locate anywhere that is more
than 50 miles from the Employee's principal place of business at the time of the
Reorganization Event.

    Notwithstanding the foregoing, the Employee shall not be entitled to
terminate his employment for Good Reason under items (i), (ii), (iii) or (iv)
above solely on the basis of his assignment to a new position with the Company
or its successor (which may otherwise constitute a Good Reason under one or more
of such items) if the Employee has accepted such assignment in writing.  Any
such acceptance shall not waive the Employee's rights as to any other or any
future Good Reason events. 

    The Employee shall provide the Company with 30-day advance written notice
of a termination for Good Reason setting forth in reasonable detail the facts
and circumstances claimed to provide a basis for the termination.  Such notice
may be given at any time following the occurrence of the events that provide the
basis for the termination during the two (2) year period following the
Reorganization Event of the Company; provided, however, that where a termination
for Good Reason is on account of relocation, as provided in item (v) above, such
notice shall be provided within one (1) year of the effective date of such
relocation (but not later than the expiration of the 2-year period above).  If
within the thirty (30) day period, the Company takes actions reasonably
satisfactory to the Employee to remedy the basis for the Good Reason
termination, such notice of termination shall be considered null and void;
provided, however that the Company shall not have the right to remedy a Good
Reason termination occurring on the basis of a relocation as described in item
(v) above. The Date of Termination for a termination for Good Reason shall be
the expiration of the 30-day notice period provided for above.

    4.   SEVERANCE PAYMENT  

    The amount of the severance payment to be paid to the Employee upon Covered
Termination shall be the amount determined by multiplying 2.00 times the sum of:

         (a)  the Employee's Annual Base Salary as in effect immediately prior
to the Date of Termination; plus, 

         (b)  the Employee's Bonus Amount applicable for the fiscal year in
which the Date of Termination occurs; plus, 

         (c)  a benefit allowance of 25% of the Employee's Annual Base Salary
as in effect immediately prior to the Date of Termination.

                                      5
<PAGE>

    5.   OTHER SEVERANCE BENEFITS

    In addition to the severance payment provided under Section 4 hereof, the
Employee shall be entitled to the following benefits and other rights in the
event of the his Covered Termination:

         (a)  ACCRUED RIGHTS.  The Employee shall be entitled to the following
payments and benefits in respect of accrued compensation rights upon a Covered
Termination, in addition to other rights provided under this Agreement: 

              (i)   payment of any accrued but unpaid Annual Base Salary through
the Date of Termination and payment of any annual bonus (for any completed
fiscal year) that is awarded subsequent to the Date of Termination by the
Company in its sole discretion under the terms of the annual bonus plan then in
effect; 

              (ii)  payment of a pro-rata portion of the Bonus Amount for the
fiscal year of the Company in which the Covered Termination occurs, based on the
number of days of such year prior to the Date of Termination; 

              (iii) all benefits and rights accrued under the employee
benefit plans, fringe benefits programs and payroll practices of the Company in
accordance with their terms (including, without limitations, employee pension,
employee welfare, incentive bonus, stock incentive plans, and any accrued
vacation or sick pay time); and

              (iv) a payment equal to the forfeited portion of the Employee's
account balance under the Company's tax qualified deferred compensation plan as
a result of failure to satisfy vesting requirements due to a Covered
Termination.

          (b) OUTPLACEMENT SERVICES. Upon the occurrence of a Covered
Termination, the Employee shall be provided, at the Company's sole expense, with
professional outplacement services consistent with the Employee's duties or
profession and of a type and level customary for persons in his position, as
selected by the Company, subject to reasonable limitations established by the
Company on a uniform basis for similarly situated Employees as to duration and
dollar amounts.

    6.   EXCISE TAX REIMBURSEMENT  

    In the event it shall be determined that any payment or distribution by the
Company or any other person or entity to or for the Employee's benefit, whether
paid or payable or distributed or distributable pursuant to the terms of this
Agreement or otherwise, or whether prior to or following the Covered Termination
in connection with, or arising out of, the Employee's employment with the
Company or a Reorganization Event of the Company (a "Payment") will be subject
to the tax (the "Excise Tax") imposed by section 4999 of the Code, the Company
shall pay to the Employee at the time specified in Section 7 hereof, an
additional amount (the "Gross-Up Payment") such that the net amount retained by
the Employee, after deduction of any Excise Tax on the Payments and any federal
(and state and local) income tax, employment tax, and Excise Tax upon the
payment provided for by this paragraph, shall be equal to the amount of the

                                      6
<PAGE>

Payments.  For purposes of determining whether any of the Payments will be
subject to the Excise Tax and the amount of such Excise Tax the following will
apply: 
         (a)  any payments or benefits received or to be received by the
Employee in connection with a Reorganization Event of the Company or his
termination of employment (whether pursuant to the terms of this Agreement or
any other plan, arrangement or agreement with the Company, any person whose
actions result in a Reorganization Event of the Company or any person affiliated
with the Company or such person) shall be treated as "parachute payments" within
the meaning of section 280G(b)(2) of the Code, and all "excess parachute
payments" within the meaning of section 280G(b)(1) shall be treated as subject
to the Excise Tax, unless in the opinion of tax counsel selected by the
Company's independent auditors and acceptable to the Employee such other
payments or benefits (in whole or in part) do not constitute parachute payments,
or such excess parachute payments (in whole or in part) represent reasonable
compensation for services actually rendered within the meaning of section
280G(b)(4) of the Code in excess of the base amount within the meaning of
section 280G(b)(3) of the Code, or are otherwise not subject to the Excise Tax;
and

         (b)  the value of any non-cash benefits or any deferred payment or
benefit shall be determined by the Company's independent auditors in accordance
with proposed, temporary or final regulations under Sections 280G(d)(3) and (4)
of the Code or, in the absence of such regulations, in accordance with the
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of
determining the amount of the Gross-Up Payment, the Employee shall be deemed to
pay federal income taxes at the highest marginal rate of federal income taxation
in the calendar year in which the Gross-Up Payment is to be made and state and
local income taxes at the highest marginal rate of taxation in the state and
locality of the Employee's residence on the Date of Termination, net of the
maximum reduction in federal income taxes which could be obtained from deduction
of such state and local taxes.  In the event that the amount of Excise Tax
attributable to Payments is subsequently determined to be less than the amount
taken into account hereunder at the time of termination of the Employee's
employment, he shall repay to the Company at the time that the amount of such
reduction in Excise Tax is finally determined the portion of the Gross-Up
Payment attributable to such reduction (plus the portion of the Gross-Up Payment
attributable to the Excise Tax, employment tax and federal (and state and local)
income tax imposed on the Gross-Up Payment being repaid by the Employee if such
repayment results in a reduction in Excise Tax and/or a federal (and state and
local) income tax deduction) plus interest on the amount of such repayment at
the rate provided in section 1274(b)(2) (B) of the Code.  In the event that the
Excise Tax attributable to Payments is determined to exceed the amount taken
into account hereunder at the time of the termination of the Employee's
employment (including by reason of any payment the existence or amount of which
cannot be determined at the time of the Gross-Up Payment), the Company shall
make an additional gross-up payment in respect of such excess (plus any interest
payable with respect to such excess) at the time that the amount of such excess
is finally determined.  

    7.   METHOD OF PAYMENT

    The payments provided for in Sections 4, 5 and 6 hereof shall be made in a
cash lump-sum payment, net of any required tax withholding, upon the later of
(i) the fifth (5th) business 

                                      7
<PAGE>

day following the Date of Termination or (ii) the expiration of the seven (7) 
day revocation period applicable under the release of claims referred to in 
Section 10 hereof provided, however, that if the amounts of such payments 
cannot be finally determined on or before such day, the Company shall pay on 
such day an estimate, as determined in good faith by the Company, of the 
minimum amount of such payments.  Any payment required under Sections 4, 5 or 
6 or any other provision of this Agreement that is not made in a timely 
manner shall bear interest at a rate equal to one-hundred twenty (120) 
percent of the monthly compounded applicable federal rate, as in effect under 
Section 1274(d) of the Code for the month in which the payment is required to 
be made.  In the event that the amount of the estimated payments exceeds the 
amount subsequently determined to have been due, such excess shall constitute 
a loan by the Company payable on the fifth day after demand by the Company 
with interest at the rate provided under Section 1274(d) of the Code until 
paid.

    8.   RELOCATION EXPENSES  

    The Employee shall be entitled to a reimbursement payment from the Company
equal to his reasonable moving expenses (determined in accordance with Company's
relocation policy) incurred in connection with the Employee's written acceptance
of a position with the Company requiring his relocation to a metropolitan area,
other than the metropolitan area where his office is located at the time of the
Reorganization Event of the Company.  The Company shall pay the Employee an
additional payment in an amount such that the net amount retained by the
Employee after deduction for any federal, state, and local income tax,
employment tax and any excise tax on the reimbursement payment shall equal the
amount of the reimbursement payment.  If the employment of the Employee is
terminated for Good Reason on the basis of his relocation under Section 3
hereof, the payment to which the Employee is entitled to under Section 4 hereof
will be reduced by 25% of the relocation payment, including tax reimbursement,
that the Employee received from the Company under this Section 8. 

    9.   NO MITIGATION OR OFFSET

    The Employee shall not be required to mitigate the amount of any severance
payment or benefit provided under this Agreement by seeking other employment or
otherwise.  The amount of any payment or benefit to which the Employee becomes
entitled hereunder shall not be reduced by any compensation earned by the
Employee as the result of employment by another employer, by retirement
benefits, nor by offset against any amount claimed to be owed to the Company by
reason of a claimed breach by the Employee of his obligations under Sections 11
or 12 hereof or otherwise (except that offset shall apply as specifically
provided in Section 8 hereof concerning relocation expenses and Section 21
hereof concerning other severance payments).  

    10.  RELEASE OF CLAIMS

    As conditions of Employee's entitlement to the severance payments and
benefits provided by this Agreement, the Employee shall be required to execute
and honor the terms of a waiver and release of claims against the Company
substantially in the form attached hereto as Exhibit A (as may be modified
consistent with the purposes of such waiver and release to reflect changes in
law following the date hereof).  

                                      8
<PAGE>

    11.  RESTRICTION ON CONDUCT OF EMPLOYEE

         (a)  GENERAL.  The Employee and the Company understand and agree that
the purpose of the provisions of this Section 11 is to protect legitimate
business interests of the Company, as more fully described below, and is not
intended to impair or infringe upon the Employee's right to work, earn a living,
or acquire and possess property from the fruits of his labor.  The Employee
hereby acknowledges that the post-employment restrictions set forth in this
Section 11 are reasonable and that they do not, and will not, unduly impair his
ability to earn a living after the termination of his employment with the
Company.  Therefore, subject to the limitations of reasonableness imposed by law
upon restrictions set forth herein, the Employee shall be subject to the
restrictions set forth in this Section 11.

         (b)  DEFINITIONS.  The following capitalized terms used in this
Section 11 shall have the meanings assigned to them below, which definitions
shall apply to both the singular and the plural forms of such terms:

    "CONFIDENTIAL INFORMATION" means any confidential or proprietary 
information possessed by the Company without limitation, any confidential 
"know-how", customer lists, details of client or consultant contracts, 
current and anticipated customer requirements, pricing policies, price lists, 
market studies, business plans, operational methods, marketing plans or 
strategies, product development techniques or plans, computer software 
programs (including object code and source code), data and documentation, 
data base technologies, systems, structures and architectures, inventions and 
ideas, past, current and planned research and development, compilations, 
devices, methods, techniques, processes, financial information and data, 
business acquisition plans, new personnel acquisition plans and any other 
information that would constitute a trade secret under the common law or 
statutory law of the State of Delaware.

    "DETERMINATION DATE" means the date of termination of the Employee's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Employee.

    "PERSON" means any individual or any corporation, partnership, joint
venture, association or other entity or enterprise.

    "PRINCIPAL OR REPRESENTATIVE" means a principal, owner, partner,
shareholder, joint venturer, member, trustee, director, officer, manager,
employee, agent, representative or consultant.

    "PROTECTED EMPLOYEES" means employees of the Company or its affiliated
companies who were employed by the Company or its affiliated companies at any
time within six (6) months prior to the Determination Date.

    "RESTRICTED PERIOD" means the period of the Employee's employment with the
Company plus a period extending two (2) years from the date of termination of
employment.

    "RESTRICTIVE COVENANTS" means the restrictive covenants contained in
Section 11(c) hereof.

                                      9
<PAGE>

         (c)  RESTRICTIVE COVENANTS.

              (i)   RESTRICTION ON DISCLOSURE AND USE OF CONFIDENTIAL
INFORMATION.  The Employee understands and agrees that the Confidential
Information constitutes a valuable asset of the Company and its affiliated
entities, and may not be converted to the Employee's own use.  Accordingly, the
Employee hereby agrees that the Employee shall not, directly or indirectly, at
any time during the Restricted Period reveal, divulge or disclose to any Person
not expressly authorized by the Company any Confidential Information, and the
Employee shall not, directly or indirectly, at any time during the Restricted
Period use or make use of any Confidential Information in connection with any
business activity other than that of the Company.  The parties acknowledge and
agree that this Agreement is not intended to, and does not, alter either the
Company's rights or the Employee's obligations under any state or federal
statutory or common law regarding trade secrets and unfair trade practices.

              (ii)  NONSOLICITATION OF PROTECTED EMPLOYEES.  The Employee
understands and agrees that the relationship between the Company and each of its
Protected Employees constitutes a valuable asset of the Company and may not be
converted to the Employee's own use.  Accordingly, the Employee hereby agrees
that during the Restricted Period the Employee shall not directly or indirectly
on the Employee's own behalf or as a Principal or Representative of any Person
solicit any Protected Employee to terminate his or her employment with the
Company. 

              (iii) NONINTERFERENCE WITH COMPANY OPPORTUNITIES.  The
Employee understands and agrees that all hotel development opportunities with
which he is involved during his employment with the Company constitute valuable
assets of the Company and its affiliated entities, and may not be converted to
Employee's own use.  Accordingly, the Employee hereby agrees that during the
Restricted Period the Employee shall not directly or indirectly on the
Employee's own behalf or as a Principal or Representative of any Person,
interfere with, solicit, pursue, or in any way make use of any such hotel
development opportunities.

         (d)  EXCEPTIONS FROM DISCLOSURE RESTRICTIONS.  Anything herein to the
contrary notwithstanding, the Employee shall not be restricted from disclosing
or using Confidential Information that: (i) is or becomes generally available to
the public other than as a result of an unauthorized disclosure by the Employee
or his agent; (ii) becomes available to the Employee in a manner that is not in
contravention of applicable law from a source (other than the Company or its
affiliated entities or one of its or their officers, employees, agents or
representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or other similar
agreement; (iii) was known to the Employee on a non-confidential basis and not
in contravention of applicable law or a confidentiality or other similar
agreement before its disclosure to the Employee by the Company or its affiliated
entities or one of its or their officers, employees, agents or representatives;
or (iv) is required to be disclosed by law, court order or other legal process;
provided, however, that in the event disclosure is required by law, the Employee
shall provide the Company with prompt notice of such requirement so that the
Company may seek an appropriate protective order prior to any such required
disclosure by the Employee.

                                      10
<PAGE>

         (e)  ENFORCEMENT OF THE RESTRICTIVE COVENANTS.

              (i)  RIGHTS AND REMEDIES UPON BREACH.  In the event the Employee
breaches, or threatens to commit a breach of, any of the provisions of the
Restrictive Covenants, the Company shall have the right and remedy to enjoin,
preliminarily and permanently, the Employee from violating or threatening to
violate the Restrictive Covenants and to have the Restrictive Covenants
specifically enforced by any court of competent jurisdiction, it being agreed
that any breach or threatened breach of the Restrictive Covenants would cause
irreparable injury to the Company and that money damages would not provide an
adequate remedy to the Company.  The rights referred to in the preceding
sentence shall be independent of any others and severally enforceable, and shall
be in addition to, and not in lieu of, any other rights and remedies available
to the Company at law or in equity.

              (ii) SEVERABILITY OF COVENANTS.  The Employee acknowledges and
agrees that the Restrictive Covenants are reasonable and valid in time and space
and in all other respects.  If any court determines that any Restrictive
Covenants, or any part thereof, is invalid or unenforceable, the remainder of
the Restrictive Covenants shall not thereby be affected and shall be given full
effect, without regard to the invalid portions. 

    12.  COOPERATION IN FUTURE MATTERS

    The Employee hereby agrees that, for a period of three (3) years following
his Date of Termination, he shall cooperate with the Company's reasonable
requests relating to matters that pertain to the Employee's employment by the
Company, including, without limitation, providing information or limited
consultation as to such matters, participating in legal proceedings,
investigations or audits on behalf of the Company, or otherwise making himself
reasonably available to the Company for other related purposes.  Any such
cooperation shall be performed at times scheduled taking into consideration the
Employee's other commitments, and the Employee shall be compensated at a
reasonable hourly or per diem rate to be agreed by the parties to the extent
such cooperation is required on more than an occasional and limited basis.  The
Employee shall not be required to perform such cooperation to the extent it
conflicts with any requirements of exclusivity of service for another employer
or otherwise, nor in any manner that in the good faith belief of the Employee
would conflict with his rights under or ability to enforce this Agreement.

    13.  INDEMNIFICATION

         (a)  Following the Date of Termination, the Company agrees that it
will, indemnify and hold harmless the Employee, against any costs or expenses
(including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities or amounts paid in settlement incurred in connection with any claim,
action, suit, proceeding or investigation, whether civil, criminal,
administrative or investigative, arising out of or pertaining to matters
existing or occurring at or prior to the Date of Termination, whether asserted
or claimed prior to, at or after the Date of Termination, to the fullest extent
that the Company would have been permitted under Delaware law and its
certificate of incorporation or bylaws in effect on the date hereof to indemnify
the Employee (and the Company shall also advance expenses as incurred to the
fullest extent 

                                      11
<PAGE>

permitted under applicable law, provided the Employee provides an undertaking 
to repay advances if it is ultimately determined that the Employee is not 
entitled to indemnification).

         (b)  For a period of six years after the Date of Termination, the
Company shall maintain (to the extent available in the market) in effect a
director's and officer's liability insurance policy covering with coverage in
amount and scope at least as favorable as the Company's existing coverage on the
Date of Termination; provided that in no event shall the Company be required to
expend in the aggregate in excess of 200% of the annual premium paid by the
Company for such coverage as of the Date of Termination; and if such premium
would at any time exceed 200% of the such amount, then the Company shall
maintain insurance policies which provide the maximum and best coverage
available at an annual premium equal to 200% of such amount.

         (c)  The provisions of this Section 13 are intended to be an addition
to the rights otherwise available to the Employee by law, charter, statute,
bylaw or separate agreement between the Company and the Employee.  The Company
shall continue to honor any indemnification agreement between the Company and
the Employee entered into prior to the Date of Termination in accordance with
the terms thereof.

    14.  SUCCESSORS, BINDING AGREEMENT.  

         (a)  The Company will require any successor (whether direct or
indirect, by purchase, merger, consolidation or otherwise) to all or
substantially all of the business and/or assets of the Company to expressly
assume and agree to perform this Agreement in the same manner and to the same
extent that the Company would be required to perform it if no such succession
had taken place.  Failure of the Company to obtain such assumption and agreement
prior to the effectiveness of any such succession shall be a breach of this
Agreement and shall entitle the Employee to compensation from the Company in the
same amount and on the same terms as the Employee would be entitled to hereunder
if he terminated his employment for Good Reason following a Reorganization Event
of the Company, except that for purposes of implementing the foregoing, the date
on which any such succession becomes effective shall be deemed the Date of
Termination.  As used in this Agreement, "Company" shall mean the Company as
herein before defined and any successor to its business and/or assets as
aforesaid which assumes and agrees to perform this Agreement by operation of
law, or otherwise.  

         (b)  This Agreement shall inure to the benefit of and be enforceable
by the Employee's personal or legal representatives, executors, administrators,
successors, heirs, distributees, devises and legatees.  If the Employee should
die while any amount remains payable to him hereunder, all such amounts, unless
otherwise provided herein, shall be paid in accordance with the terms of this
Agreement to the Employee's devisee, legatee or other designee or, if there is
no such designee, to the Employee's estate.  

    15.  NOTICE  

    Any notice required or permitted to be given by this Agreement shall be
effective only if in writing, delivered personally against receipt therefor or
mailed by certified or registered mail,

                                      12
<PAGE>

return receipt requested, to the parties at the addresses hereinafter set 
forth, or at such other places that either party may designate by notice to 
the other.

    Notice to the Company shall be addressed to:

         Promus Hotel Corporation
         755 Crossover Lane
         Memphis, Tennessee  38117
         Attention:  General Counsel

    Notice to the Employee shall be addressed to him at the business address of
the Company where the Employee is employed, with a copy to him at his home
address as follows:

    All such notices shall be deemed effectively given five (5) days after the
same has been deposited in a post box under the exclusive control of the United
States Postal Service.

    16.  MISCELLANEOUS  

    No provision of this Agreement may be modified, waived or discharged unless
such waiver, modification or discharge is agreed to in writing and signed by the
Employee and such officer of the Company as may be specifically designated by
the Board.  No waiver by either party hereto at any time of any breach by the
other party hereto of, or compliance with, any condition or provision of this
Agreement to be performed by such other party shall be deemed a waiver of
similar or dissimilar provisions or conditions at the same or at any prior or
subsequent time.  No agreement or representations, oral or otherwise, express or
implied, with respect to the subject matter hereof have been made by either
party which are not expressly set forth in this Agreement.  The validity,
interpretation, construction and performance of this Agreement shall be governed
by the laws of the State of Delaware.  The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision of this Agreement, which shall remain in full force and
effect.  

    17.  COUNTERPARTS  

    This Agreement may be executed in several counterparts, each of which shall
be deemed to be an original but all of which together will constitute one and
the same instrument.

    18.  ARBITRATION  

    Any dispute or controversy arising under or in connection with this
Agreement shall be settled exclusively by arbitration in Memphis, Tennessee
accordance with the rules of the American Arbitration Association then in
effect.  Judgment may be entered on the arbitrator's award in any court having
jurisdiction. 

    19.  PAYMENT OF LEGAL FEES 

    The Company shall pay all reasonable legal fees and expenses incurred by
the Employee in connection with any arbitration (or other proceeding whether or
not instituted by the Company

                                      13
<PAGE>

or the Employee), relating to the interpretation or enforcement of any 
provision of this Agreement (including any action seeking to obtain or 
enforce any right or benefit provided by this Agreement) or in connection 
with any tax audit or proceeding relating to the application of Section 4999 
of the Code to any payment or benefit provided by the Company.

    20.  NO RESTRICTIONS ON EMPLOYMENT RIGHTS

    Nothing in this Agreement shall confer on the Employee any right to
continue in the employ of the Company or shall interfere with or restrict in any
way the rights of the Company, which are hereby expressly reserved, to discharge
the Employee at any time for any reason whatsoever, with or without Cause,
subject to the requirements of this Agreement.  Nothing in this Agreement shall
restrict the right of the Employee to terminate his employment with the Company
at any time for any reason whatsoever, with or without Good Reason.

    21.  HOSTILE TRANSACTION PROVISION

    (a)  Notwithstanding anything elsewhere in this Agreement to the contrary,
in the event of consummation of a "Hostile Transaction" (as defined below), the
definition of "Good Reason" set forth in Section 3(c) hereof shall be
substituted with the following definition, which shall apply for all purposes of
this Agreement:

    "TERMINATION FOR GOOD REASON.  For purposes hereof, the Employee may
terminate his employment for "Good Reason" as a result of:

           (i) any adverse change in the Employee's position or title as in
    effect at the time of the Reorganization Event of the Company, or the
    assignment to the Employee of duties inconsistent with such position or
    title;

          (ii) any reduction in the Employee's overall level of authority and
    responsibility with the Company as in effect at the time of the
    Reorganization Event of the Company;

         (iii) any reduction in the Employee's Annual Base Salary as in
    effect at the time of the Reorganization Event of the Company;

          (iv) any reduction in the Employee's target or maximum bonus
    percentage under the Company's annual bonus plan from the percentage in
    effect at the time of the Reorganization Event of the Company;

           (v) a relocation by more than 50 miles of the Employee's principal
    place of business at the time of the Reorganization Event of the Company,
    or the Company's requiring the Employee to locate anywhere that is more
    than 50 miles from the Employee's principal place of business at the time
    of the Reorganization Event;

          (vi) the failure by the Company to continue in effect any compensation
    plan in which the Employee is participating immediately prior to the
    Reorganization Event of the

                                      14
<PAGE>

    Company which is material to his total compensation, including but not 
    limited to, the bonus plans, deferred compensation plans, equity 
    incentive plans, unless an equitable arrangement (embodied in an ongoing 
    substitute or alternative plan) has been made with respect to such plan, 
    or the failure by the Company to continue the Employee's participation 
    therein (or in such substitute or alternative plan) on a basis not 
    materially less favorable, both in terms of the amount of benefits 
    provided and the level of his participation relative to other 
    participants, as existed immediately prior to the Reorganization Event 
    of the Company;

         (vii) the failure by the Company to continue to provide the
    Employee with benefits substantially similar to those enjoyed by the
    Employee under any of the Company's pension, savings and retirement plan,
    life insurance, medical, health and accident, or disability plans in which
    he was participating at the time of the Reorganization Event of the
    Company, the taking of any action by the Company which would directly or
    indirectly materially reduce any of such benefits or deprive the Employee
    of any material fringe benefit enjoyed by him at the time of the
    Reorganization Event of the Company, or the failure by the Company to
    provide the Employee with the number of paid vacation days to which he is
    entitled on the basis of years of service with the Company in accordance
    with the Company's normal vacation policy in effect at the time of the
    Reorganization Event of the Company; or

      (viii) the failure of the Company to obtain a satisfactory agreement from
    any successor to assume and agree to perform this Agreement, as contemplated
    in Section 14 hereof.

    The Employee's right to terminate his employment pursuant to this Agreement
for Good Reason shall not be affected by his incapacity due to physical or
mental illness.  The Employee's continued employment shall not constitute
consent to, or a waiver of rights with respect to, any circumstance constituting
Good Reason hereunder."

    (b)  In the event of consummation of a Hostile Transaction, the provisions
of Section 11 hereof (concerning restricted conduct) and Section 12 hereof
(concerning required cooperation) shall not be applicable to the Employee.

    (c)  For purposes hereof, a "Hostile Transaction" shall be any
Reorganization Event which has, at any time prior to the consummation thereof,
been designated by a resolution of the Board as potentially having an impact on
the Employee and other of the Company's Employees, such that it would be
appropriate for the Employee (and such other Employees) to be provided with the
additional protection afforded by the foregoing definition of "Good Reason."

                                      15
<PAGE>

    IN WITNESS WHEREOF, the parties have executed these presents as of the day
and year first above written.

                             PARENT HOLDING CORP.


                             ____________________________________
                             Name:  Ralph B. Lake
                             Title: Secretary and General Counsel


                             EMPLOYEE


                             ____________________________________
                             Name:


                                      16


<PAGE>

                                                                      TIER III

                           SEVERANCE AGREEMENT


THIS SEVERANCE AGREEMENT (this "Agreement") is made as of this ____ day of
September, 1997, between DOUBLETREE CORPORATION (the "Company") and
____________________(the "Employee").


                               RECITALS

WHEREAS, the Company considers it essential to the best interest of its 
stockholders to foster the continuous employment of key management personnel, 
and believes that the possibility of a reorganization event of the Company 
and the uncertainty and questions which it may raise among management may 
result in the departure or distraction of management personnel to the 
detriment of the Company and its stockholders; and

WHEREAS, the Board of Directors has determined that appropriate steps 
should be taken to reinforce and encourage the continued attention and 
dedication of members of the Company's management, including the Employee, to 
their assigned duties without distraction in the face of potentially 
disturbing circumstances arising from the possibility of a reorganization 
event of the Company;

NOW, THEREFORE, in consideration of the mutual premises set forth below 
and for other good and valuable consideration, in order to induce the 
Employee to remain in the employ of the Company, the Company agrees that the 
Employee shall receive the severance benefits set forth in this agreement 
("this Agreement") in the event his employment with the Company terminates 
subsequent to a "Reorganization Event" of the Company under the circumstances 
described below.

                           AGREEMENT

1. DEFINITIONS

The following terms used in this Agreement shall have the meanings given
below:

(a) "ANNUAL BASE SALARY" shall mean the Employee's gross annual salary
before any deductions, exclusions or any deferrals or contributions under any
Company plan or program, but excluding bonuses, incentive compensation,
employee benefits or any other non-salary form of compensation (determined
without regard to any reduction in Annual Base Salary that results in "Good
Reason" termination).


                                       1

<PAGE>

(b) "BOARD" shall mean the Board of Directors of the Company.

(c) "BONUS AMOUNT" shall mean the greater of (i) the dollar amount of 
the annual bonus that would be payable to the Employee under the Company's 
annual bonus plan applicable to the Employee, assuming payment at the 
Employee's target level for the then-current full fiscal year (determined 
without regard to any reduction in target bonus percentage that results in 
"Good Reason" termination), or (ii) the dollar amount of the bonus paid or 
payable to the Employee under the Company's annual bonus plan for the most 
recently completed fiscal year under such plan.  For the purposes hereof, the 
"Bonus Amount" shall not include any special bonuses paid outside of the 
Company's generally applicable annual bonus plan.

(d) "CODE" shall mean the Internal Revenue Code of 1986, as amended.

(e) "COMPANY" shall mean Doubletree Corporation, or any successor
corporation that assumes this Agreement under Section 13 hereof or otherwise
becomes bound by this Agreement.

(f) "COVERED TERMINATION" shall have the meaning given in Section 3
hereof.

(g) "DATE OF TERMINATION" shall mean the effective date of the Employee's
Covered Termination pursuant to Section 3 hereof.

(h) "DISABILITY" shall mean the absence of the Employee from the 
full-time performance of his duties with the Company for six consecutive 
months as a result of incapacity due to physical or mental illness, provided 
the Company has given 30-day advance written notice to the Employee and he 
has not returned to the full-time performance of his duties.

(i) "REORGANIZATION EVENT" shall mean the occurrence of any of the
following after the date hereof:

(i) any "person" (as such term is used in Section 13(d) and 14(d) of the 
Securities Exchange Act of 1934, as amended (the "Exchange Act"), other than 
an employee benefit plan of the Company, or a trustee or other fiduciary 
holding securities under an employee benefit plan of the Company, becomes a 
"beneficial owner" (as defined in rule 13d-3 under the  Exchange Act), 
directly or indirectly, of 25% or more of the Company's then outstanding 
voting securities carrying the right to vote in elections of persons to 
the Board, regardless of comparative voting power of such voting 
securities, and regardless of whether or not the Board shall have 
approved such Reorganization Event; PROVIDED, HOWEVER, that an acquisition 
after the date hereof by the General Electric Pension Trust or its 
affiliates, by Richard Ferris, or by Peter Ueberroth of 25% or more of the 
Company's then-outstanding securities shall not be deemed a 
"Reorganization Event" of the Company; or

(ii) during any period of two (2) consecutive years (not including any period 
prior to the execution of this Agreement), individuals who at the 
beginning of such period constitute the Board (the "Incumbent Board")
and any other new director (other than a director designated by a 


                                       2

<PAGE>

person who shall have entered into an agreement with the Company to effect a 
transaction described in clauses (i) or (iii) of this subsection) whose 
election by the Board or nomination for election by the Company's 
stockholders was approved by a vote of at least two-thirds (2/3) of the 
directors then still in office who either were directors at the beginning 
of the period or whose election or nomination for election was previously 
so approved (each such new director being considered a member of the 
"Incumbent Board"), cease for any reason to constitute a majority thereof; or 

(iii) the holders of securities of the Company entitled to vote thereon 
approve of the following:

(A) a merger or consolidation of the Company with any other corporation 
regardless of which entity is the surviving company, other than a 
merger or consolidation which would result in the voting securities 
of the Company carrying the right to vote in elections of persons 
to the Board outstanding immediately prior thereto continuing to 
represent (either by remaining outstanding or by being converted 
into voting securities of the surviving entity) at least 66 2/3% of 
the Company's then-outstanding voting securities carrying the right 
to vote in elections of persons to the Board or such securities of 
such surviving entity outstanding immediately after such merger or 
consolidation, or

(B) a plan of complete liquidation of the Company or an agreement for the 
sale or disposition by the Company of all or substantially all of the 
Company's assets.

Notwithstanding the definition of "Reorganization Event" of the Company as
set forth in this Agreement, the Board shall have full and final authority,
which shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the
occurrence of such Reorganization Event and any incidental matters relating
thereto, with respect to a transaction or series of transactions which have
resulted or will result in a substantial portion of the assets or business of
the Company (as determined immediately prior to the transaction or series of
transactions by the Board in its sole discretion which determination shall be
final and conclusive) being held by a corporation at least 66 2/3% of whose
voting securities are held, immediately following such transaction or series of
transactions, by holders of the voting securities of the Company (determined
immediately prior to such transaction or series of transactions).  The Board
may exercise such discretionary authority without regard to whether one or more
of the transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth in this
Agreement.  It is hereby understood and agreed that the consummation of the
business combination contemplated by the Agreement and Plan of Merger dated as
of September 1, 1997 among Doubletree Corporation, Promus Hotel Corporation and
Parent Holding Corp. shall constitute a Reorganization Event for purposes of
this Agreement.
     
2. TERM OF AGREEMENT
     
This Agreement shall commence on the date first written above and shall 
continue in effect though December 31, 1998; PROVIDED, HOWEVER, that 
commencing on January 1, 1999 and each


                                       3

<PAGE>

January 1 thereafter, the term of this Agreement shall automatically be 
extended for one additional year unless, not later than September 30 of the 
preceding year, the Company shall have given notice that it does not wish to 
extend this Agreement.  Notwithstanding the foregoing, no notice of 
non-renewal given by the Board shall be effective with respect to a 
particular Reorganization Event if given after the occurrence of the 
following events: (i) the Company enters into an agreement or letter of 
intent, the consummation of which would result in such Reorganization Event, 
(ii) any "person" makes a public announcement of its intention to take or 
consider taking actions that would result in such Reorganization Event, or 
(iii) any "person" (as defined above) initiates a tender offer which, if 
consummated, would result in such Reorganization Event (it being understood 
that this sentence shall not apply with respect to any unrelated 
Reorganization Event). If a Reorganization Event of the Company shall have 
occurred during the original or extended term of this Agreement, the term of 
this Agreement shall continue in force and effect until the satisfaction of 
all of the Company's obligations to the Employee as provided hereunder.
     
3.  COVERED TERMINATION

(a) GENERAL.  The Employee shall be treated as having incurred a "Covered 
Termination" hereunder if his employment is terminated, within a period of 
one (1) year following the consummation of a Reorganization Event of the 
Company, by the Company other than for Cause or by the Employee for Good 
Reason.  The Employee shall not be treated as having incurred a Covered 
Termination if his employment is terminated as a result of death or 
Disability.  NOTE that, as described below, the Employee must give 30-days 
advance written notice of termination for Good Reason, thus effectively 
requiring that such notice be given no later than 30 days prior to the 
expiration of the one (1) year period described above (in order for the Date 
of Termination to occur prior to the expiration of such period).


(b)  TERMINATION FOR CAUSE. Termination by the Company of the Employee's 
employment for "Cause" shall mean termination as a result of:

(i) the Employee engaging in willful gross neglect of his duties with the 
Company, or the Employee's fraud or dishonesty in connection with his 
performance of duties to the Company, in either case which has a materially 
detrimental effect on the business or operations of the Company; or

(ii) the Employee's conviction by a court of competent jurisdiction of any 
crime (or upon entering a plea of guilty or NOLO CONTENDERE to a charge of 
any crime) constituting a felony.

The Date of Termination for a termination for Cause shall be the date 
specified by the Company.

(c) TERMINATION FOR GOOD REASON.  For purposes hereof, the Employee may 
terminate his employment for "Good Reason" as a result of:


                                       4

<PAGE>

(i) a material adverse change in the Employee's position or title 
as in effect     at the time of the Reorganization Event of the Company;

(ii) a substantial reduction in the Employee's overall level of      
authority and responsibility with the Company as in      effect at the time of 
the     Reorganization Event of the Company;

(iii) any reduction in the Employee's Annual Base Salary as in 
effect at the     time of the Reorganization Event of the Company;
     
(iv) any reduction in the Employee's target or maximum bonus 
percentage under the Company's annual bonus plan from the percentage in 
effect at the time  of the Reorganization Event of the Company; or

(v) a relocation by more than 50 miles of the Employee's principal 
place of business at the time of the Reorganization Event of the Company, or 
the Company's requiring the Employee to locate anywhere that is more than 50 
miles from the Employee's principal place of business at the time     of the 
Reorganization Event.
     
Notwithstanding the foregoing, the Employee shall not be entitled to 
terminate his employment for Good Reason under items (i), (ii), (iii) or (iv) 
above solely on the basis of his assignment to a new position with the 
Company or its successor (which may otherwise constitute a Good Reason under 
one or more of such items) if the Employee has accepted such assignment in 
writing. Any such acceptance shall not waive the Employee's rights as to any 
other or any future Good Reason events.
     
The Employee shall provide the Company with 30-day advance written notice of 
a termination for Good Reason setting forth in reasonable detail the facts 
and circumstances claimed to provide a basis for the termination.  Such 
notice may be given at any time following the occurrence of the events that 
provide the basis for the termination , but not later than the date that is 
30 days prior to the first anniversary date of the consummation of the 
Reorganization Event of the Company; PROVIDED, HOWEVER, that where a 
termination for Good Reason is on account of relocation, as provided in item 
(v) above, such notice shall be provided within one  (1) year of the 
effective date of such relocation.  If within the thirty (30) day period, the 
Company takes actions reasonably satisfactory to the Employee to remedy the 
basis for the Good Reason termination, such notice of termination shall be 
considered null and void; PROVIDED, HOWEVER that the Company shall not have 
the right to remedy a Good Reason termination occurring on the basis of a 
relocation as described in item (v) above. The Date of Termination for a 
termination for Good Reason shall be the expiration of the 30-day notice 
period provided for above.
     
4. SEVERANCE PAYMENT
     
The amount of the severance payment to be paid to the Employee upon Covered 
Termination shall be the amount determined by multiplying 1.00 times the sum 
of:


                                       5

<PAGE>

(a) the Employee's Annual Base Salary as in effect immediately prior to the 
Date of Termination; plus,
     
(b) the Employee's Bonus Amount applicable for the fiscal year in which the 
Date of Termination occurs; plus,
     
(c) a benefit allowance of 25% of the Employee's Annual Base Salary as in 
effect immediately prior to the Date of Termination.
     
5. OTHER SEVERANCE BENEFITS
     
In addition to the severance payment provided under Section 4 hereof, the 
Employee shall be entitled to the following benefits and other rights in the 
event of his Covered Termination:
     
(a) ACCRUED RIGHTS.  The Employee shall be entitled to the following
payments and benefits in respect of accrued compensation rights upon a Covered
Termination, in addition to other rights provided under this Agreement:
     
(i) payment of any accrued but unpaid Annual Base Salary and annual 
bonus (for any completed fiscal year) through the Date of Termination;
     
          (ii) payment of a pro-rata portion of the Bonus Amount for  the 
fiscal year of the Company in which the Covered Termination occurs, based on 
the number of days of such year prior to the Date of Termination;
     
(iii) all benefits and rights accrued under the employee benefit 
plans, fringe benefits programs and payroll practices of the Company in 
accordance with their terms (including, without limitations, employee 
pension, employee welfare, incentive bonus, stock incentive plans, and any 
accrued vacation or accrued sick pay time); and
     
          (iv) a payment equal to the forfeited portion of the account balance
of the    Employee under the Company's tax-qualified and non-tax-qualified
pension and    deferred     compensation plans as a result of failure to 
satisfy vesting requirements     due to the Covered Termination.
     
(b) OUTPLACEMENT SERVICES. Upon the occurrence of a Covered Termination, the 
Employee shall be provided, at the Company's sole expense, with professional 
outplacement services consistent with the Employee's duties or profession and 
of a type and level customary for persons in his position, as selected by the 
Company, subject to reasonable limitations established by the Company on a 
uniform basis for similarly situated employees as to duration and dollar 
amounts.
     
6. EXCISE TAX REIMBURSEMENT
     
In the event it shall be determined that any payment or distribution by the 
Company or any other person or entity to or for the Employee's benefit, 
whether paid or payable or distributed or


                                       6

<PAGE>

distributable pursuant to the terms of this Agreement or otherwise, or 
whether prior to or following the Covered Termination in connection with, or 
arising out of, the Employee's employment with the Company or a 
Reorganization Event of the Company (a "Payment") will be subject to the tax 
(the "Excise Tax") imposed by section 4999 of the Code, the Company shall pay 
to the Employee at the time specified in Section 7 hereof, below, an 
additional amount (the "Gross-Up Payment") such that the net amount retained 
by the Employee, after deduction of any Excise Tax on the Payments and any 
federal (and state and local) income tax, employment tax, and Excise Tax upon 
the payment provided for by this paragraph, shall be equal to the amount of 
the Payments.  For purposes of determining whether any of the Payments will 
be subject to the Excise Tax and the amount of such Excise Tax the following 
will apply:
     
(a) any payments or benefits received or to be received by the Employee in 
connection with a Reorganization Event of the Company or his termination of 
employment (whether pursuant to the terms of this Agreement or any other 
plan, arrangement or agreement with the Company, any person whose actions 
result in a Reorganization Event of the Company or any person affiliated with 
the Company or such person) shall be treated as "parachute payments" within 
the meaning of section 280G(b)(2) of the Code, and all "excess parachute 
payments" within the meaning of section 280G(b)(1) shall be treated as 
subject to the Excise Tax, unless in the opinion of tax counsel selected by 
the Company's independent auditors and acceptable to the Employee such other 
payments or benefits (in whole or in part) do not constitute parachute 
payments, or such excess parachute payments (in whole or in part) represent 
reasonable compensation for services actually rendered within the meaning of 
section 280G(b)(4) of the Code in excess of the base amount within the 
meaning of section 280G(b)(3) of the Code, or are otherwise not subject to 
the Excise Tax; and
     
(b) the value of any non-cash benefits or any deferred payment or benefit 
shall be determined by the Company's independent auditors in accordance with 
proposed, temporary or final regulations under Sections 280G(d)(3) and (4) of 
the Code or, in the absence of such regulations, in accordance with the 
principles of Section 280G(d)(3) and (4) of the Code.  For purposes of 
determining the amount of the Gross-Up Payment, the Employee shall be deemed 
to pay federal income taxes at the highest marginal rate of federal income 
taxation in the calendar year in which the Gross-Up Payment is to be made and 
state and local income taxes at the highest marginal rate of taxation in the 
state and locality of the Employee's residence on the Date of Termination, 
net of the maximum reduction in federal income taxes which could be obtained 
from deduction of such state and local taxes.  In the event that the amount 
of Excise Tax attributable to Payments is subsequently determined to be less 
than the amount taken into account hereunder at the time of termination of 
the Employee's employment, he shall repay to the Company at the time that the 
amount of such reduction in Excise Tax is finally determined the portion of 
the Gross-Up Payment attributable to such reduction (plus the portion of the 
Gross-Up Payment attributable to the Excise Tax, employment tax and federal 
(and state and local) income tax imposed on the Gross-Up Payment being repaid 
by the Employee if such repayment results in a reduction in Excise Tax and/or 
a federal (and state and local) income tax deduction) plus interest on the 
amount of such repayment at the rate provided in section 1274(b)(2) (B) of 
the Code. In the event that the Excise Tax attributable to Payments is 
determined to exceed the amount taken into account hereunder at the time of 
the termination of the Employee's employment (including by


                                       7

<PAGE>

reason of any payment the existence or amount of which cannot be determined 
at the time of the Gross-Up Payment), the Company shall make an additional 
gross-up payment in respect of such excess (plus any interest payable with 
respect to such excess) at the time that the amount of such excess is finally 
determined.
     
7. METHOD OF PAYMENT
     
The payments provided for in Sections 4, 5 and 6 hereof shall be made in a 
cash lump-sum payment, net of any required tax withholding, upon the later of 
(i) the fifth (5th) business day following the Date of Termination or (ii) 
the expiration of the seven (7) day revocation period applicable under the 
release of claims referred to in Section 10 hereof.  Any payment required 
under Sections 4, 5 or 6 or any other provision of this Agreement that is not 
made in a timely manner shall bear interest at a rate equal to one-hundred 
twenty (120) percent of the monthly compounded applicable federal rate, as in 
effect under Section 1274(d) of the Code for the month in which the payment 
is required to be made.
     
8. RELOCATION EXPENSES
     
The Employee shall be entitled to a reimbursement payment from the Company 
equal to his reasonable moving expenses (determined in accordance with 
Company's relocation policy) incurred in connection with the Employee's 
written acceptance of a position with the Company requiring his relocation to 
a metropolitan area, other than the metropolitan area where his office is 
located at the time of the Reorganization Event of the Company.  The Company 
shall pay the Employee an additional payment in an amount such that the net 
amount retained by the Employee after deduction for any federal, state, and 
local income tax, employment tax and any excise tax on the reimbursement 
payment shall equal the amount of the reimbursement payment.  If the 
employment of the Employee is terminated for Good Reason on the basis of his 
relocation under Section 3 hereof, the payment to which the Employee is 
entitled to under Section 4 hereof will be reduced by 25% of the relocation 
payment, including tax reimbursement, that the Employee received from the 
Company under this Section 8.
     
9. NO MITIGATION OR OFFSET
     
The Employee shall not be required to mitigate the amount of any severance 
payment or benefit provided under this Agreement by seeking other employment 
or otherwise.  The amount of any payment or benefit to which the Employee 
becomes entitled hereunder shall not be reduced by any compensation earned by 
the Employee as the result of employment by another employer, by retirement 
benefits, nor by offset against any amount claimed to be owed to the Company 
by reason of a claimed breach by the Employee of his obligations under 
Sections 11 or 12 hereof or otherwise (except that offset shall apply as 
specifically provided in Section 8 hereof concerning relocation expenses and 
Section 20 hereof concerning other severance payments).
     
10. RELEASE OF CLAIMS


                                       8

<PAGE>

As conditions of Employee's entitlement to the severance payments and 
benefits provided by this Agreement, the Employee shall be required to 
execute and honor the terms of a waiver and release of claims against the 
Company substantially in the form attached hereto as Exhibit A (as may be 
modified consistent with the purposes of such waiver and release to reflect 
changes in law following the date hereof).
     
11. RESTRICTION ON CONDUCT OF EMPLOYEE
     
(a)   GENERAL.  The Employee and the Company understand and agree that the 
purpose of the provisions of this Section 11 is to protect legitimate 
business interests of the Company, as more fully described below, and is not 
intended to impair or infringe upon the Employee's right to work, earn a 
living, or acquire and possess property from the fruits of his labor.  The 
Employee hereby acknowledges that the post-employment restrictions set forth 
in this Section 11 are reasonable and that they do not, and will not, unduly 
impair his ability to earn a living after the termination of his employment 
with the Company. Therefore, subject to the limitations of reasonableness 
imposed by law upon restrictions set forth herein, the Employee shall be 
subject to the restrictions set forth in this Section 11.
     
(b)  DEFINITIONS.  The following capitalized terms used in this Section 11 
shall have the meanings assigned to them below, which definitions shall apply 
to both the singular and the plural forms of such terms:
     
"Confidential Information" means any confidential or proprietary information 
possessed by the Company without limitation, any confidential "know-how", 
customer lists, details of client or consultant contracts, current and 
anticipated customer requirements, pricing policies, price lists, market 
studies, business plans, operational methods, marketing plans or strategies, 
product development techniques or plans, computer software programs 
(including object code and source code), data and documentation, data base 
technologies, systems, structures and architectures, inventions and ideas, 
past, current and planned research and development, compilations, devices, 
methods, techniques, processes, financial information and data, business 
acquisition plans, new personnel acquisition plans and any other information 
that would constitute a trade secret under the common law or statutory law of 
the State of Delaware.
     
"Determination Date" means the date of termination of the Employee's 
employment with the Company for any reason whatsoever or any earlier date 
(during the Restricted Period) of an alleged breach of the Restrictive 
Covenants by the Employee.
     
"Person" means any individual or any corporation, partnership, joint venture, 
association or other entity or enterprise.
     
"Principal or Representative" means a principal, owner, partner, shareholder, 
joint venturer, member, trustee, director, officer, manager, employee, agent, 
representative or consultant.


                                       9

<PAGE>

"Protected Employees" means employees of the Company or its affiliated 
companies who were employed by the Company or its affiliated companies at any 
time within six (6) months prior to the Determination Date.
     
"Restricted Period" means the period of the Employee's employment by the 
Company plus a period extending one (1) year from the date of termination of 
employment.
     
"Restrictive Covenants" means the restrictive covenants contained in
Section 11(c) hereof.
     
(c) Restrictive Covenants.
     
(i) RESTRICTION ON DISCLOSURE AND USE OF CONFIDENTIAL INFORMATION. The 
Employee understands and agrees that the Confidential Information constitutes 
a valuable asset of the Company and its affiliated entities, and may not be 
converted to the Employee's own use.  Accordingly, the Employee hereby agrees 
that the Employee shall not, directly or indirectly, at any time during the 
Restricted Period reveal, divulge or disclose to any Person not expressly 
authorized by the Company any Confidential Information, and the Employee 
shall not, directly or indirectly, at any time during the Restricted Period 
use or make use of any Confidential Information in connection with any 
business activity other than that of the Company.  The parties acknowledge 
and agree that this Agreement is not intended to, and does not, alter either 
the Company's rights or the Employee's obligations under any state or federal 
statutory or common law regarding trade secrets and unfair trade practices.
     
(ii) NONSOLICITATION OF PROTECTED EMPLOYEES.  The Employee understands and 
agrees that the relationship between the Company and each of its Protected 
Employees constitutes a valuable asset of the Company and may not be 
converted to the Employee's own use.  Accordingly, the Employee hereby agrees 
that during the Restricted Period the Employee shall not directly or 
indirectly on the Employee's own behalf or as a Principal or Representative 
of any Person or otherwise solicit any Protected Employee to terminate his or 
her employment with the Company.

(iii) NONINTERFERENCE WITH COMPANY OPPORTUNITIES.  The Employee understands 
and agrees that all hotel development opportunities with which he is involved 
during his employment with the Company constitute valuable assets of the 
Company and its affiliated entities, and may not be converted to the 
Employee's own use.  Accordingly, the Employee hereby agrees that during the 
Restricted Period the Employee shall not directly or indirectly on the 
Employee's own behalf or as a Principal or Representative of any Person, 
interfere with, solicit, pursue, or in any way make use of any such hotel 
development opportunities.
     
(d) EXCEPTIONS FROM DISCLOSURE RESTRICTIONS.  Anything herein to the
contrary notwithstanding, the Employee shall not be restricted from disclosing
or using Confidential Information that: (i) is or becomes generally available
to the public other than as a result of an unauthorized disclosure by the
Employee or his agent; (ii) becomes available to the Employee in a manner that
is not in contravention of applicable law from a source (other than the Company
or its affiliated entities or one of its or their officers, employees, agents
or representative) that is not bound by a confidential relationship with the
Company or its affiliated entities or by a confidentiality or


                                       10

<PAGE>

other similar agreement; (iii) was known to the Employee on a 
non-confidential basis and not in contravention of applicable law or a 
confidentiality or other similar agreement before its disclosure to the 
Employee by the Company or its affiliated entities or one of its or their 
officers, employees, agents or representatives; or (iv) is required to be 
disclosed by law, court order or other legal process; PROVIDED, HOWEVER, that 
in the event disclosure is required by law, court order or legal process, the 
Employee shall provide the Company with prompt notice of such requirement so 
that the Company may seek an appropriate protective order prior to any such 
required disclosure by the Employee.
     
(e) ENFORCEMENT OF THE RESTRICTIVE COVENANTS.
     
(i) RIGHTS AND REMEDIES UPON BREACH.  In the event the Employee breaches, or 
threatens to commit a breach of, any of the provisions of the Restrictive 
Covenants, the Company shall have the right and remedy to enjoin, 
preliminarily and permanently, the Employee from violating or 
threatening to violate the Restrictive Covenants and to have the 
Restrictive Covenants specifically enforced by any court of competent 
jurisdiction, it being agreed that any breach or threatened breach of the 
 Restrictive Covenants would cause irreparable injury to the Company and 
that money damages would not provide an adequate remedy to the Company. 
The rights referred to in the preceding sentence shall be independent of 
any others and severally enforceable, and shall be in addition to, and not 
in lieu of, any other rights and remedies available to the Company at law 
or in equity.

(ii)  SEVERABILITY OF COVENANTS.  The Employee acknowledges and agrees 
that the Restrictive Covenants are reasonable and valid in time and 
space and in all other respects.  If any court determines that any 
Restrictive Covenants, or any part thereof, is invalid or unenforceable, 
the remainder of the Restrictive Covenants shall not thereby be affected 
and shall be given full effect, without regard to the invalid portions.
     
12. COOPERATION IN FUTURE MATTERS
     
The Employee hereby agrees that, for a period of three (3) years following 
his Date of Termination, he shall cooperate with the Company's reasonable 
requests relating to matters that pertain to the Employee's employment by the 
Company, including, without limitation, providing information or limited 
consultation as to such matters, participating in legal proceedings, 
investigations or audits on behalf of the Company, or otherwise making 
himself reasonably available to the Company for other related purposes.  Any 
such cooperation shall be performed at times scheduled taking into 
consideration the Employee's other commitments, and the Employee shall be 
compensated at a reasonable hourly or PER DIEM rate to be agreed by the 
parties to the extent such cooperation is required on more than an occasional 
and limited basis.  The Employee shall not be required to perform such 
cooperation to the extent it conflicts with any requirements of exclusivity 
of service for another employer or otherwise, nor in any manner that in the 
good faith belief of the Employee would conflict with his rights under or 
ability to enforce this Agreement.

13. SUCCESSORS, BINDING AGREEMENT.


                                       11

<PAGE>

(a) The Company will require any successor (whether direct or indirect, by
purchase, merger, consolidation or otherwise) to all or substantially all of
the business and/or assets of the Company to expressly assume and agree to
perform this Agreement in the same manner and to the same extent that the
Company would be required to perform it if no such succession had taken place.
Failure of the Company to obtain such assumption and agreement prior to the
effectiveness of any such succession shall be a breach of this Agreement and
shall entitle the Employee to compensation from the Company in the same amount
and on the same terms as the Employee would be entitled to hereunder if he
terminated his employment for Good Reason following a Reorganization Event of
the Company, except that for purposes of implementing the foregoing, the date
on which any such succession becomes effective shall be deemed the Date of
Termination.  As used in this Agreement, "Company" shall mean the Company as
herein before defined and any successor to its business and/or assets as
aforesaid which assumes and agrees to perform this Agreement by operation of
law, or otherwise.

(b) This Agreement shall inure to the benefit of and be enforceable by the
Employee's personal or legal representatives, executors, administrators,
successors, heirs, distributees, devises and legatees.  If the Employee should
die while any amount remains payable to him hereunder, all such amounts, unless
otherwise provided herein, shall be paid in accordance with the terms of this
Agreement to the Employee's devisee, legatee or other designee or, if there is
no such designee, to the Employee's estate.

14. NOTICE

Any notice required or permitted to be given by this Agreement shall be
effective only if in writing, delivered personally against receipt therefor or
mailed by certified or registered mail, return receipt requested, to the
parties at the addresses hereinafter set forth, or at such other places that
either party may designate by notice to the other.

Notice to the Company shall be addressed to:

               Doubletree Corporation
               410 North 44th Street, Suite 700
               Phoenix, AZ 85008
               Attn: Corporate Secretary


Notice to the Employee shall be addressed to him at the business address
of the Company where the Employee is employed, with a copy to him at his home
address as follows:

               __________________________

               __________________________

               __________________________


                                       12

<PAGE>

All such notices shall be deemed effectively given five (5) days after the
same has been deposited in a post box under the exclusive control of the United
States Postal Service.

15.  MISCELLANEOUS

No provision of this Agreement may be modified, waived or discharged
unless such waiver, modification or discharge is agreed to in writing and
signed by the Employee and such officer of the Company as may be specifically
designated by the Board.  No waiver by either party hereto at any time of any
breach by the other party hereto of, or compliance with, any condition or
provision of this Agreement to be performed by such other party shall be deemed
a waiver of similar or dissimilar provisions or conditions at the same or at
any prior or subsequent time.  No agreement or representations, oral or
otherwise, express or implied, with respect to the subject matter hereof have
been made by either party which are not expressly set forth in this Agreement.
The validity, interpretation, construction and performance of this Agreement
shall be governed by the laws of the State of Delaware.  The invalidity or
unenforceability of any provision of this Agreement shall not affect the
validity or enforceability of any other provision of this Agreement, which
shall remain in full force and effect.

16.  COUNTERPARTS

This Agreement may be executed in several counterparts, each of which
shall be deemed to be an original but all of which together will constitute one
and the same instrument.

17.  ARBITRATION

Any dispute or controversy arising under or in connection with this
Agreement shall be settled exclusively by arbitration in accordance with the
rules of the American Arbitration Association then in effect.  Judgment may be
entered on the arbitrator's award in any court having jurisdiction.

18. PAYMENT OF LEGAL FEES

The Company shall pay all reasonable legal fees and expenses incurred by
the Employee in connection with any arbitration (or other proceeding whether or
not instituted by the Company or the Employee), relating to the interpretation
or enforcement of any provision of this Agreement (including any action seeking
to obtain or enforce any right or benefit provided by this Agreement) or in
connection with any tax audit or proceeding relating to the application of
Section 4999 of the Code to any payment or benefit provided by the Company.

19. NO RESTRICTIONS ON EMPLOYMENT RIGHTS
     
Nothing in this Agreement shall confer on the Employee any right to
continue in the employ of the Company or shall interfere with or restrict in
any way the rights of the Company, which are hereby expressly reserved, to
discharge the Employee at any time for any reason whatsoever,


                                       13

<PAGE>

with or without Cause, subject to the requirements of this Agreement.  
Nothing in this Agreement shall restrict the right of the Employee to 
terminate his employment with the Company at any time for any reason 
whatsoever, with or without Good Reason.

20. OTHER SEVERANCE AGREEMENTS

Any severance payments provided to the Employee under Section 4 hereof
shall be offset by the dollar amount of any other cash severance payments to
which the Employee is entitled under any other severance or termination pay
plan, policy or agreement with the Company or its affiliates (including,
without limitation, the severance or termination pay plans, policies and
agreements of Red Lion Hotels, Inc.).
     
     21. HOSTILE TRANSACTION PROVISION

     (a)  Notwithstanding anything elsewhere in this Agreement to the contrary,
in the event of consummation of a "Hostile Transaction" (as defined below), the
definition of "Good Reason" set forth in Section 3(c) hereof shall be
substituted with the following definition, which shall apply for all purposes
of this Agreement:

     "Termination for Good Reason.  For purposes hereof, the Employee may
terminate his employment for "Good Reason" as a result of:

          (i)  any adverse change in the Employee's position or title as in
     effect at the time of the Reorganization Event of the Company, or the
     assignment to the Employee of any duties inconsistent with such position
     or title;

          (ii) any reduction in the Employee's overall level of authority and
     responsibility with the Company as in effect at the time of the
     Reorganization Event of the Company;

          (iii) any reduction in the Employee's Annual Base Salary as in effect
     at the time of the Reorganization Event of the Company;

          (iv) any reduction in the Employee's target or maximum bonus
     percentage under the Company's annual bonus plan from the percentage in
     effect at the time of the Reorganization Event of the Company;

          (v) a relocation by more than 50 miles of the Employee's principal
     place of business at the time of the Reorganization Event of the Company,
     or the Company's requiring the Employee to locate anywhere that is more
     than 50 miles from the Employee's principal place of business at the time
     of the Reorganization Event;

          (vi) the failure by the Company to continue in effect any
     compensation plan in which the Employee is participating immediately prior
     to the Reorganization Event of the Company which is material to his total
     compensation, including but not limited to, the bonus plans, deferred
     compensation plans, equity incentive plans, unless an equitable
     arrangement


                                       14

<PAGE>

     (embodied in an ongoing substitute or alternative plan) has
     been made with respect to such plan, or the failure by the Company to
     continue the Employee's participation therein (or in such substitute or
     alternative plan) on a basis not materially less favorable, both in terms
     of the amount of benefits provided and the level of his participation
     relative to other participants, as existed immediately prior to the
     Reorganization Event of the Company;

          (vii) the failure by the Company to continue to provide the Employee
     with benefits substantially similar to those enjoyed by the Employee under
     any of the Company's pension, savings and retirement plan, life insurance,
     medical, health and accident, or disability plans in which he was
     participating at the time of the Reorganization Event of the Company, the
     taking of any action by the Company which would directly or indirectly
     materially reduce any of such benefits or deprive the Employee of any
     material fringe benefit enjoyed by him at the time of the Reorganization
     Event of the Company, or the failure by the Company to provide the
     Employee with the number of paid vacation days to which he is entitled on
     the basis of years of service with the Company in accordance with the
     Company's normal vacation policy in effect at the time of the
     Reorganization Event of the Company; or

          (viii) the failure of the Company to obtain a satisfactory agreement
     from any successor to assume and agree to perform this Agreement, as
     contemplated in Section 13 hereof.

          The Employee's right to terminate his employment pursuant to this
Agreement for Good Reason shall not be affected by his incapacity due to
physical or mental illness.  The Employee's continued employment shall not
constitute consent to, or a waiver of rights with respect to, any circumstance
constituting Good Reason hereunder."

          (b)  In the event of consummation of a Hostile Transaction, the 
provisions of Section 11 hereof (concerning restricted conduct) and Section 
12 hereof (concerning required cooperation) shall not be applicable to the 
Employee.

(c)  For purposes hereof, a "Hostile Transaction" shall be any
Reorganization Event which has, at any time prior to the consummation thereof,
been designated by a resolution of the Board as potentially having an impact on
the Employee and other of the Company's employees, such that it would be
appropriate for the Employee (and such other employees) to be provided with the
additional protection afforded by the foregoing definition of "Good Reason."


                                       15

<PAGE>
     
     IN WITNESS WHEREOF, the parties have executed these  presents as of the
day and year first above written.
     
     
     
                                   DOUBLETREE CORPORATION
     
                                   ________________________________
                                   Name:    David L. Stivers
                                   Title:   Senior Vice President
                                            General Counsel and Secretary
     
                                   EMPLOYEE
     
                                   ________________________________
                                   Name:


                                       16


<PAGE>






                                 PROMUS HOTEL CORPORATION

                                CORPORATE HEADQUARTERS
                                 AND REGIONAL OFFICES
                                DIRECTORS AND MANAGERS
                                  SEVERANCE PAY PLAN

                                         AND

                               SUMMARY PLAN DESCRIPTION


<PAGE>

                                       PREAMBLE

Promus Hotel Corporation (the "Company") adopts this Corporate Headquarters and
Regional Offices Directors and Managers (Grades 20-25) Severance Pay Plan (the
"Plan") effective as of September 1, 1997 in order to provide enhanced severance
benefits to the Company's full-time corporate headquarters and other regional
offices staff (excluding hotel personnel) in the event that their employment
with the Company or its successor is terminated under certain circumstances
after the occurrence of a "Reorganization Event," as defined below.
Information required in a Summary Plan Description with respect to the Plan has
been included so that it can be distributed to meet disclosure requirement of
federal law. Employees who are eligible for and actually receive benefits under
the Plan are participants in the Plan ("Participants").

                                   I.  ELIGIBILITY

1.  In order to be eligible to participate in the Plan (an "Eligible
    Employee"), a person must be (i) actively employed by the Company or a
    subsidiary as of September 1, 1997 at the Company's corporate headquarters
    or at one of its regional offices (excluding hotel personnel), and (ii)
    actively employed by the Company or a subsidiary in such a position on a
    full-time basis as of the date of consummation of the Reorganization Event
    (as defined in Exhibit A hereto).  For purposes hereof, an employee shall
    be considered employed on a "full-time" basis if he is scheduled to work at
    least [25] hours per week for each of the eight full consecutive weeks 
    prior to the date of consummation of the Reorganization Event (pro-rated 
    for any periods of approved vacation leave or Family and Medical Leave 
    during such eight week period).  Notwithstanding the foregoing, if the 
    Reorganization Event is not the Proposed Merger (as defined in Exhibit A), 
    the September 1, 1997 requirement described above shall be replaced with 
    the date determined by the Administrator, in its sole discretion, to be 
    appropriate in connection with such other Reorganization Event.

2.  To  be eligible for severance payments and benefits, an Eligible Employee
    must be terminated without Cause by the Company or a subsidiary or for
    "Good Reason" by the employee within one (1) year after the consummation of
    a "Reorganization Event."  "Good Reason" is defined as a material adverse
    change in position or rank, substantial reduction in responsibilities,
    reduction in base salary or annual target bonus percentage, or relocation
    by more than 50 miles from current office.

3.  "Cause" for involuntary separation from employment is defined as willful
    neglect of duties, fraud or dishonesty in each case, materially detrimental
    to the company, or conviction for commission of a felony.  The


                                          1
<PAGE>

    determination as to whether an Eligible Employee becomes ineligible to
    participate in the Plan shall be made by the Administrator in its
    discretion.

4.  No Eligible Employee who is eligible to receive severance or termination
    benefits under an Employment Agreement or Separation Agreement with the
    Company shall be eligible to be a Participant under the Plan.

5.  Nothing in this policy statement shall affect the Company's policy
    concerning "at will" employment.   All Eligible Employees are "at will"
    employees and may be terminated at any time, with or without cause.

                              II.  PAYMENTS AND BENEFITS

1.  The severance payment shall be equal to the sum of (i) then current base
    salary; (ii) then current target annual bonus (provided that dollar amount
    of each of salary and bonus shall not be less than prior year's, and (iii)
    benefit allowance of twenty-five (25%) percent of then current base salary.

2.  The severance payment shall be paid as a lump sum at the time of
    termination.  Notwithstanding any provision herein to the contrary, no
    severance payment provided hereunder shall exceed twice the Employee's
    annual compensation during the year immediately preceding his termination
    of service nor continue for more than 24 months from the date of his
    termination of service, as determined for purposes of Department of Labor
    Regulations Section 2510.3-2(b).

3.  The Company shall withhold only appropriate federal and state taxes from
    the severance payment.  Deductions for the Company's Savings and Retirement
    Plan shall cease with the final paycheck (covering time worked).
    Deductions will be made for any outstanding debt owed by the separated
    Eligible Employee to the Company.

4.  An Eligible Employee who is entitled to a lump sum severance payment under
    this Plan shall receive an additional payment following termination equal
    to the amount of any forfeited balance under the Company's Savings and
    Retirement Plan due to failure to satisfy vesting requirements.  Eligible
    Employees shall be entitled to all benefits and rights accrued under the
    employee benefit plans, fringe benefits programs and payroll practices of
    the Company in accordance with their terms including, without limitations,
    employee pension, employee welfare and pro rata incentive bonus plans for
    year of termination and any earned and accrued vacation or earned and
    accrued sick pay time.

5.  Participants who are entitled to receive a lump sum severance payment under
    the Plan shall also be provided with limited outplacement benefits


                                          2
<PAGE>

    within reasonable limitations as to duration and dollar amount as
    established by the Company on a uniform basis for similarly situated
    employees.

6.  The severance payment shall be conditioned upon the Eligible Employee's
    execution of a waiver and release of claims against the Company in such
    form as shall be approved by the Company.

                                 III.  ADMINISTRATION

The Plan is administered by an Administrator appointed by the Vice President,
Human Resources of the Company or such officer's delegate or successor.   The
Administrator shall be the sole named fiduciary with respect to the Plan and
shall have absolute discretion in the control and administration of the Plan.
The Plan Administrator shall have full fiduciary authority and discretion to
determine all questions arising in connection with the Plan, including its
interpretation as well as questions of fact.   The Administrator's decisions
shall be final and bind all parties.

                         IV.  FUNDING AND PAYMENT OF BENEFITS

The benefits of the Plan shall be paid by the Company out of its general assets.
Therefore, there is no separate fund of assets maintained in connection with the
Plan.  The Company shall make severance payments under the Plan directly to the
Participant.

                               V.  TERMINATION OF PLAN

Unless formally extended in writing by the Company, the Plan shall terminate and
be of no further force or effect on December 31, 1998, provided that the Plan
shall continue to be of full force and effect with respect to any Participant
whose employment with the Company terminated prior to such termination date.
The Plan may not be amended by the Company in any manner adverse to the Eligible
Employees prior to the termination of the Plan.

                                VI.  CLAIMS PROCEDURE

Any person claiming a benefit, requesting an interpretation or ruling under the
Plan, or requesting information under the Plan shall present a claim in writing
to the Administrator.  The Administrator shall respond to the claim within 90
days unless special circumstances require an extension of time of up to an
additional 90 days.  The Administrator shall notify the claimant of the special
circumstances and the date by which a decision is expected.  If no response to a
claim is received within the prescribed time, it shall be deemed denied.


                                          3
<PAGE>

If the claim is denied, the Administrator shall give the claimant a written
notice, including the specific reason for denial, with reference to pertinent
Plan provisions.   The denial shall include a description of any additional
information necessary for the claimant to perfect a claim, an explanation of why
such information is necessary and a description of the procedure for having the
denied claim reviewed.

The claimant may request review of a denied claim by written notice to the
Administrator given within 90 days of the date of denial.   The claimant or
authorized representative may submit a written application for review, may
review pertinent documents and may submit issues and comments in writing.   The
Administrator shall decide whether to affirm or reverse the earlier denial and
give notice to the claimant.

The decision on review shall be made within 60 days, unless special
circumstances require an extension of time for up to an additional 60 days.
The Administrator shall give the claimant notice of such an extension.   The
Administrator shall give the claimant written notice of the decision on review,
including specific references to Plan provisions on which the decision is based.
All decisions on review shall be final and bind all parties concerned.

                               VII.  FORMAL INFORMATION

         PLAN NAME AND TYPE

         Promus Hotels, Inc.
         Corporate Headquarters and Regional Offices
         Directors and Managers Severance Pay Plan
         Plan Sponsor Assigned No.  _____
         Plan year end: December 31, ____

         PLAN SPONSOR

         Promus Hotels, Inc.
         755 Crossover Lane
         Memphis, Tennessee  38117
         Employer Identification No. 62-1602678


         PLAN ADMINISTRATOR AND AGENT FOR SERVICE OF PROCESS

         Administrator
         Promus Hotels, Inc.
         Corporate Headquarters and Regional Offices


                                          4
<PAGE>

         Directors and Managers Severance Pay Plan
         Promus Hotels, Inc.
         755 Crossover Lane
         Memphis, Tennessee  38117
         Telephone No.  (901) 374-5000


                           VIII.  STATEMENT OF ERISA RIGHTS

Federal regulations provide the following summary of your rights under ERISA as
a participant under the Plan:

As a participant you are entitled to certain rights and protection under the
Employee Retirement Income Security Act of 1974 (ERISA).   ERISA provides that
all Plan participants shall be entitled to:

    A.   Examine, without charge, at the Plan Administrator's office and at
other specified locations, such as work sites, all Plan documents, including
copies of all documents filed by the Plan with the U.S. Department of Labor,
such as detailed annual reports and Plan descriptions.

    B.   Obtain copies of all Plan documents and other Plan information upon
written requests to the Plan Administrator.   The Administrator may make a
reasonable charge for the copies.

    C.   Receive a summary of the Plan's annual financial report.   The Plan
Administrator is required by law to furnish each participant with a copy of this
summary annual report.

In addition to creating rights for Plan participants, ERISA imposes duties upon
the people who are responsible for the operation of the employee benefit plan.
The people who operate your Plan, called "fiduciaries" of the Plan, have a duty
to do so prudently and in the interest of you and other Plan participants and
beneficiaries.   No one, including your employer, or any other person, may fire
you or otherwise discriminate against you in any way to prevent you from
obtaining a benefit or exercising your rights under ERISA.   If your claim for a
benefit is denied in whole or in part, you must receive a written explanation of
the reason for the denial.   You have the right to have the Plan review and
reconsider your claim.

Under ERISA, there are steps you can take to enforce the above rights.   For
instance, if you request materials from the Plan and do not receive them within
30 days, you may file suit in a federal court.   In such a case, the court may
require the Plan Administrator to provide the materials and pay you up to $100 a
day until you receive the materials, unless the materials were not sent because


                                          5
<PAGE>

of reasons beyond the control of the Administrator.   If you have a claim for
benefits which is denied or ignored, in whole or in part, you may file suit in a
state or federal court.   If it should happen that Plan fiduciaries misuse the
Plan's money, or if you are discriminated against for asserting your rights, you
may seek assistance from the U.S. Department of Labor, or you may file suit in
a federal court.   The court will decide who should pay court costs and legal
fees.   If you are successful, the court may order the person you have sued to
pay these costs and fees.   If you lose, the court may order you to pay these
costs and fees, for example, if it finds your claim is frivolous.

If you have any questions about your Plan, you should contact the Plan
Administrator.   If you have any questions about this statement or about your
rights under ERISA, you should contact the nearest Area Office of the U.S.
Labor-Management Services Administration, Department of Labor.


                   PROMUS HOTEL CORPORATION



                   By:       _______________________

                   Title:    _______________________

                   Date:     _______________________


                                          6
<PAGE>

                                      APPENDIX A

                         DEFINITION OF "REORGANIZATION EVENT"


    For purposes of the Plan, "Reorganization Event" shall mean the occurrence
of any of the following after the date hereof prior to the termination of the
Plan, as set forth below:

    (i) any "person" (as such term is used in Section 13(d) and 14(d) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), other than an
employee benefit plan of the Company, or a trustee or other fiduciary holding
securities under an employee benefit plan of the Company, becomes a "beneficial
owner" (as defined in rule 13d-3 under the Exchange Act), directly or
indirectly, of 25% or more of the Company's then outstanding voting securities
carrying the right to vote in elections of persons to the Board of Directors of
the Company (the "Board"), regardless of comparative voting power of such voting
securities, and regardless of whether or not the Board shall have approved such
Reorganization Event; or

    (ii) during any period of two (2) consecutive years (not including any
period prior to the execution of this Agreement), individuals who at the
beginning of such period constitute the Board (the "Incumbent Board") and any
other new director (other than a director designated by a person who shall have
entered into an agreement with the Company to effect a transaction described in
clauses (i) or (iii) of this subsection) whose election by the Board or
nomination for election by the Company's stockholders was approved by a vote of
at least two-thirds (2/3) of the directors then still in office who either were
directors at the beginning of the period or whose election or nomination for
election was previously so approved (each such new director being considered a
member of the "Incumbent Board"), cease for any reason to constitute a majority
thereof; or

    (iii) the holders of securities of the Company entitled to vote thereon
approve of the following:

         (A) a merger or consolidation of the Company with any other
corporation regardless of which entity is the surviving company, other than a
merger or consolidation which would result in the voting securities of the
Company carrying the right to vote in elections of persons to the Board
outstanding immediately prior thereto continuing to represent (either by
remaining outstanding or by being converted into voting securities of the
surviving entity) at least 66 2/3% of the Company's then-outstanding voting
securities carrying the right to vote in elections of persons to the Board or
such securities of such surviving entity outstanding immediately after such
merger or consolidation, or


                                          7
<PAGE>

         (B) a plan of complete liquidation of the Company or an agreement for
the sale or disposition by the Company of all or substantially all of the
Company's assets.

Notwithstanding the definition of "Reorganization Event" of the Company as set
forth in this Agreement, the Board shall have full and final authority, which
shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the occurrence
of such Reorganization Event and any incidental matters relating thereto, with
respect to a transaction or series of transactions which have resulted or will
result in a substantial portion of the assets of business of the Company (as
determined immediately prior to the transaction or series of transactions by the
Board in its sole discretion which determination shall be final and conclusive)
being held by a corporation at least 66 2/3% of whose voting securities are
held, immediately following such transaction or series of transactions, by
holders of the voting securities of the Company (determined immediately prior to
such transaction or series of transactions).  The Board may exercise such
discretionary authority without regard to whether one or more of the
transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth in this
Agreement.  It is hereby understood and agreed that the consummation of the
business combination contemplated by the Agreement and Plan of Merger dated as
of September 1, 1997 among Doubletree Corporation, Promus Hotel Corporation and
Parent Holding Corp. (the "Proposed Merger") shall constitute a Reorganization
Event for purposes of this Plan.


                                          8

<PAGE>

                               PROMUS HOTEL CORPORATION
                                           
                                CORPORATE HEADQUARTERS
                                 AND REGIONAL OFFICES
                                 ADMINISTRATIVE STAFF
                                  SEVERANCE PAY PLAN
                                           
                                         AND
                                           
                               SUMMARY PLAN DESCRIPTION
                                           

<PAGE>

                                       PREAMBLE
                                           
Promus Hotel Corporation (the "Company") adopts this Corporate Headquarters and
Regional Offices Administrative Staff (Grades 19 and below) Severance Pay Plan
(the "Plan") effective as of September 1, 1997 in order to provide enhanced
severance benefits to the Company's full-time corporate headquarters and other
regional offices administrative staff (excluding hotel personnel) in the event
that their employment with the Company or its successor is terminated under
certain circumstances after the occurrence of a "Reorganization Event, " as
defined below.  Information required in a Summary Plan Description with respect
to the Plan has been included so that it can be distributed to meet disclosure
requirement of federal law. Employees who are eligible for and actually receive
benefits under the Plan are participants in the Plan ("Participants").  

                                   I.  ELIGIBILITY
                                           
1.  In order to be eligible to participate in the Plan (an "Eligible
    Employee"), a person must be (i) actively employed by the Company or a
    subsidiary as of September 1, 1997 in an administrative staff position at
    the Company's corporate headquarters or at one of its regional offices
    (excluding hotel personnel), and (ii) actively employed by the Company or a
    subsidiary in such a position on a full-time basis as of the date of
    consummation of the Reorganization Event (as defined in Exhibit A hereto). 
    For purposes hereof, an employee shall be considered employed on a 
    "full-time" basis if he is scheduled to work at least [25] hours per week 
    for each of the eight full consecutive weeks prior to the date of 
    consummation of the Reorganization Event (pro-rated for any periods of 
    approved vacation leave or Family and Medical Leave during such eight week 
    period). Notwithstanding the foregoing, if the Reorganization Event is not 
    the Proposed Merger (as defined in Exhibit A), the September 1, 1997
    requirement described above shall be replaced with the date determined by
    the Administrator, in its sole discretion, to be appropriate in connection
    with such other Reorganization Event.

2.  To  be eligible for severance payments and benefits, an Eligible Employee
    must be involuntarily separated from his/her employment with the Company or
    a subsidiary within one year after the consummation of a Reorganization
    Event for reasons other than as provided in paragraph 3 below.

3.  If the Eligible Employee resigns, abandons the job, fails to return from an
    approved leave of absence, is terminated for misconduct, or otherwise
    terminated for cause, including failure to meet job performance
    expectations, then the Eligible Employee shall be ineligible to receive the
    severance payments and benefits under this Plan. The determination as 


                                       1

<PAGE>

    to whether an Eligible Employee becomes ineligible to participate in the 
    Plan shall be made by the Administrator in its discretion.

4.  No Eligible Employee who is eligible to receive severance or termination
    benefits under an Employment Agreement or Separation Agreement with the
    Company shall be eligible to be a Participant under the Plan.

5.  Nothing in this policy statement shall affect the Company's policy
    concerning "at will" employment.   All Eligible Employees are "at will"
    employees and may be terminated at any time, with or without cause.

                              II.  PAYMENTS AND BENEFITS
                                           
1.  The severance payment shall be equal to (i) twelve (12) weeks salary, plus
    (ii) two (2) additional weeks of salary for each continuous year (and
    partial year) of service.  The years (and partial years) of service shall
    be determined as a fraction, the numerator of which is the Eligible
    Employee's number of full months of continuous service and the denominator
    of which is twelve.  Service for purposes of this calculation shall consist
    of an Eligible Employee's period of continuous employment with the Company,
    its subsidiaries, any predecessors and any successor to all or
    substantially all of the Company's business.  For purposes hereof, an
    Eligible Employee's salary shall be based upon the Eligible Employee's base
    salary at the time notification is given of the Eligible Employee's
    separation of employment. With respect to an Eligible Employee who is
    compensated on an hourly basis, such person's "salary" for purposes of the
    Plan shall be the product of (a) the weekly average of the number of hours
    worked by the Eligible Employee for the eight full consecutive weeks prior
    to termination of employment (with a maximum of 40 hours to be taken into
    account for any single week), multiplied by (b) the hourly rate of
    compensation in effect that the time of termination.

2.  The severance payment shall be paid as salary continuance, in accordance
    with the Company's customary payroll practices.  Such payments shall
    commence as of the payroll period beginning after the Eligible Employee's
    termination of employment and shall end at such time that the Eligible
    Employee has received the amount of salary determined in accordance with
    the preceding paragraph.  Notwithstanding any provision herein to the
    contrary, no severance payment provided hereunder shall exceed twice the
    Employee's annual compensation during the year immediately preceding his
    termination of service nor continue for more than 24 months from the date
    of his termination of service, as determined for purposes of Department of
    Labor Regulations Section 2510.3-2(b).


                                       2

<PAGE>

3.  The Company shall withhold only appropriate federal and state taxes from
    the severance payment.  Deductions for the Company's Savings and Retirement
    Plan shall cease with the final paycheck (covering time worked). 
    Deductions will be made for any outstanding debt owed by the separated
    Eligible Employee to the Company, and as required under item 4 below. 

4.  For the same period that the Participant is receiving severance payments as
    salary continuation under paragraphs 1 and 2 above, he shall be entitled to
    continued coverage under the medical and dental benefit insurance plans of
    the Company (or its successors) in which active employees participate,
    provided that he shall continue to make all payments required of active
    employees to maintain such coverage.  Such continued Participants shall be
    subject to the terms and conditions of such plans as apply to active
    employees generally, including the Company's right to amend and terminate
    such plans.  Notwithstanding the foregoing, the coverage of  the
    Participant under the medical and dental benefit plans shall terminate at
    the time the Participant obtains substitute coverage from another employer.

5.  An Eligible Employee who is entitled to severance payments under this Plan
    shall receive an additional payment following termination equal to the
    amount of any forfeited balance under the Company's Savings and Retirement
    Plan due to failure to satisfy vesting requirements.  Eligible Employees
    shall be entitled to all benefits and rights accrued under the employee
    benefit plans, fringe benefits programs and payroll practices of the
    Company in accordance with their terms including, without limitations,
    employee pension, employee welfare and pro rata incentive bonus plans for
    year of termination and any earned and accrued vacation or earned and
    accrued sick pay time. 

6.  Participants who are entitled to receive severance payments under the Plan
    shall also be provided with limited outplacement benefits within reasonable
    limitations as to duration and dollar amount as established by the Company
    on a uniform basis for similarly situated employees. 

7.  The severance payments and continued medical and dental plan coverage shall
    be  conditioned upon the Eligible Employee's execution of a waiver and
    release of claims against the Company in such form as shall be approved by
    the Company.

                                 III.  ADMINISTRATION


                                       3

<PAGE>
                                           
The Plan is administered by an Administrator appointed by the Vice President,
Human Resources of the Company or such officer's delegate or successor.   The
Administrator shall be the sole named fiduciary with respect to the Plan and
shall have absolute discretion in the control and administration of the Plan.  
The Plan Administrator shall have full fiduciary authority and discretion to
determine all questions arising in connection with the Plan, including its
interpretation as well as questions of fact.   The Administrator's decisions
shall be final and bind all parties.  

                         IV.  FUNDING AND PAYMENT OF BENEFITS
                                           
The benefits of the Plan shall be paid by the Company out of its general assets.
Therefore, there is no separate fund of assets maintained in connection with the
Plan.  The Company shall make severance payments under the Plan directly to the
Participant.  

                               V.  TERMINATION OF PLAN
                                           
Unless formally extended in writing by the Company, the Plan shall terminate and
be of no further force or effect on December 31, 1998, provided that the Plan
shall continue to be of full force and effect with respect to any Participant
whose employment with the Company terminated prior to such termination date. 
The Plan may not be amended by the Company in any manner adverse to the Eligible
Employees prior to the termination of the Plan.

                                VI.  CLAIMS PROCEDURE
                                           
Any person claiming a benefit, requesting an interpretation or ruling under the
Plan, or requesting information under the Plan shall present a claim in writing
to the Administrator.  The Administrator shall respond to the claim within 90
days unless special circumstances require an extension of time of up to an
additional 90 days.   The Administrator shall notify the claimant of the special
circumstances and the date by which a decision is expected.   If no response to
a claim is received within the prescribed time, it shall be deemed denied.  

If the claim is denied, the Administrator shall give the claimant a written
notice, including the specific reason for denial, with reference to pertinent
Plan provisions.   The denial shall include a description of any additional
information necessary for the claimant to perfect a claim, an explanation of why
such information is necessary and a description of the procedure for having the
denied claim reviewed.  

The claimant may request review of a denied claim by written notice to the
Administrator given within 90 days of the date of denial.   The claimant or
authorized representative may submit a written application for review, may


                                       4

<PAGE>

review pertinent documents and may submit issues and comments in writing.   The
Administrator shall decide whether to affirm or reverse the earlier denial and
give notice to the claimant.  

The decision on review shall be made within 60 days, unless special
circumstances require an extension of time for up to an additional 60 days.  
The Administrator shall give the claimant notice of such an extension.   The
Administrator shall give the claimant written notice of the decision on review,
including specific references to Plan provisions on which the decision is based.
All decisions on review shall be final and bind all parties concerned.  

                               VII.  FORMAL INFORMATION
                                           
         PLAN NAME AND TYPE

         Promus Hotels, Inc. 
         Corporate Headquarters and Regional Offices 
         Administrative Staff Severance Pay Plan 
         A welfare benefit plan 
         Plan Sponsor Assigned No.  _____ 
         Plan year end: December 31

         PLAN SPONSOR

         Promus Hotels, Inc.
         755 Crossover Lane
         Memphis, Tennessee  38117
         Employer Identification No. 62-1602678


         PLAN ADMINISTRATOR AND AGENT FOR SERVICE OF PROCESS

         Administrator 
         Promus Hotels, Inc. Corporate Headquarters and Regional Offices 
         Administrative Staff Severance Pay Plan
         Promus Hotels, Inc.
         755 Crossover Lane
         Memphis, Tennessee  38117 
         Telephone No.  (901) 374-5000


                                       5

<PAGE>

                           VIII.  STATEMENT OF ERISA RIGHTS
                                           
Federal regulations provide the following summary of your rights under ERISA as
a participant under the Plan:

As a participant you are entitled to certain rights and protection under the
Employee Retirement Income Security Act of 1974 (ERISA).   ERISA provides that
all Plan participants shall be entitled to:

    A.   Examine, without charge, at the Plan Administrator's office and at
other specified locations, such as work sites, all Plan documents, including
copies of all documents filed by the Plan with the U.S. Department of Labor,
such as detailed annual reports and Plan descriptions.  

    B.   Obtain copies of all Plan documents and other Plan information upon
written requests to the Plan Administrator.   The Administrator may make a
reasonable charge for the copies.  

    C.   Receive a summary of the Plan's annual financial report.   The Plan
Administrator is required by law to furnish each participant with a copy of this
summary annual report.  

In addition to creating rights for Plan participants, ERISA imposes duties upon
the people who are responsible for the operation of the employee benefit plan.  
The people who operate your Plan, called "fiduciaries" of the Plan, have a duty
to do so prudently and in the interest of you and other Plan participants and
beneficiaries.   No one, including your employer, or any other person, may fire
you or otherwise discriminate against you in any way to prevent you from
obtaining a benefit or exercising your rights under ERISA.   If your claim for a
benefit is denied in whole or in part, you must receive a written explanation of
the reason for the denial.   You have the right to have the Plan review and
reconsider your claim.  

Under ERISA, there are steps you can take to enforce the above rights.   For
instance, if you request materials from the Plan and do not receive them within
30 days, you may file suit in a federal court.   In such a case, the court may
require the Plan Administrator to provide the materials and pay you up to $100 a
day until you receive the materials, unless the materials were not sent because
of reasons beyond the control of the Administrator.   If you have a claim for
benefits which is denied or ignored, in whole or in part, you may file suit in a
state or federal court.   If it should happen that Plan fiduciaries misuse the
Plan's money, or if you are discriminated against for asserting your rights, you
may seek assistance from the U.S.  Department of Labor, or you may file suit in
a federal court.   The court will decide who should pay court costs and legal
fees.


                                       6

<PAGE>


If you are successful, the court may order the person you have sued to
pay these costs and fees.   If you lose, the court may order you to pay these
costs and fees, for example, if it finds your claim is frivolous.  

If you have any questions about your Plan, you should contact the Plan
Administrator.   If you have any questions about this statement or about your
rights under ERISA, you should contact the nearest Area Office of the U.S.
Labor-Management Services Administration, Department of Labor.  


                   PROMUS HOTELS, INC.



                   By:    _______________________

                   Title: _______________________

                   Date:  _______________________



                                       7


<PAGE>

                                      APPENDIX A
                                           
                         DEFINITION OF "REORGANIZATION EVENT"
                                           

    For purposes of the Plan, "Reorganization Event" shall mean the occurrence
of any of the following after the date hereof prior to the termination of the
Plan, as set forth below:

    (i) any "person" (as such term is used in Section 13(d) and 14(d) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), other than an
employee benefit plan of the Company, or a trustee or other fiduciary holding
securities under an employee benefit plan of the Company, becomes a "beneficial
owner" (as defined in rule 13d-3 under the Exchange Act), directly or
indirectly, of 25% or more of the Company's then outstanding voting securities
carrying the right to vote in elections of persons to the Board of Directors of
the Company (the "Board"), regardless of comparative voting power of such voting
securities, and regardless of whether or not the Board shall have approved such
Reorganization Event; or

    (ii) during any period of two (2) consecutive years (not including any
period prior to the execution of this Agreement), individuals who at the
beginning of such period constitute the Board (the "Incumbent Board") and any
other new director (other than a director designated by a person who shall have
entered into an agreement with the Company to effect a transaction described in
clauses (i) or (iii) of this subsection) whose election by the Board or
nomination for election by the Company's stockholders was approved by a vote of
at least two-thirds (2/3) of the directors then still in office who either were
directors at the beginning of the period or whose election or nomination for
election was previously so approved (each such new director being considered a
member of the "Incumbent Board"), cease for any reason to constitute a majority
thereof; or

    (iii) the holders of securities of the Company entitled to vote thereon
approve of the following:

         (A) a merger or consolidation of the Company with any other
corporation regardless of which entity is the surviving company, other than a
merger or consolidation which would result in the voting securities of the
Company carrying the right to vote in elections of persons to the Board
outstanding immediately prior thereto continuing to represent (either by
remaining outstanding or by being converted into voting securities of the
surviving entity) at least 66 2/3% of the Company's then-outstanding voting
securities carrying the right to vote in elections of persons to the Board or
such securities of such surviving entity outstanding immediately after such
merger or consolidation, or

                                       8


<PAGE>

         (B) a plan of complete liquidation of the Company or an agreement for
the sale or disposition by the Company of all or substantially all of the
Company's assets.

Notwithstanding the definition of "Reorganization Event" of the Company as set
forth in this Agreement, the Board shall have full and final authority, which
shall be exercised in its discretion, to determine conclusively whether a
Reorganization Event of the Company has occurred, and the date of the occurrence
of such Reorganization Event and any incidental matters relating thereto, with
respect to a transaction or series of transactions which have resulted or will
result in a substantial portion of the assets of business of the Company (as
determined immediately prior to the transaction or series of transactions by the
Board in its sole discretion which determination shall be final and conclusive)
being held by a corporation at least 66 2/3% of whose voting securities are
held, immediately following such transaction or series of transactions, by
holders of the voting securities of the Company (determined immediately prior to
such transaction or series of transactions).  The Board may exercise such
discretionary authority without regard to whether one or more of the
transactions in such series of transactions would otherwise constitute a
Reorganization Event of the Company under the definition set forth in this
Agreement.  It is hereby understood and agreed that the consummation of the
business combination contemplated by the Agreement and Plan of Merger dated as
of September 1, 1997 among Doubletree Corporation, Promus Hotel Corporation and
Parent Holding Corp. (the "Proposed Merger") shall constitute a Reorganization
Event for purposes of this Plan.


                                       9


<PAGE>

                              INDEMNIFICATION AGREEMENT


    THIS AGREEMENT is entered into as of 

    December __, 1997

between 

    PARENT HOLDING CORP.

(the "Corporation"), and

     ~[Name of Indemnitee]

(the "Indemnitee")

                                       RECITALS

    1.   The Corporation believes that it is essential to its best interests to
attract and retain highly capable persons to serve as directors, officers, and
agents.

    2.   Indemnitee is or has been selected to be a director, officer, or agent
of the Corporation.

    3.   The Corporation and Indemnitee recognize the increased risk of
litigation and other claims being asserted against directors, officers, and
other agents of the Corporation.

    4.   In recognition of Indemnitee's need for substantial protection against
personal liability in order to enhance Indemnitee's service to the Corporation,
and in order to induce Indemnitee to provide or continue to provide services to
the Corporation as a director, officer, or agent, the Corporation wishes to
provide in this Agreement for the indemnification and the advancing of expenses
to Indemnitee to the fullest extent permitted by law and as set forth in this
Agreement and, to the extent applicable, insurance is maintained for the
coverage of Indemnitee under the Corporation's policies of directors' and
officers' liability insurance.

IN CONSIDERATION of the foregoing and of Indemnitee's providing services to the
Corporation directly or, at its request, with another enterprise, the parties
agree as follows:

    1.   DEFINITIONS.

    (a)  Board:  The board of directors of the Corporation.

    (b)  Change in Control:  A state of affairs that shall be deemed to have
occurred if


                                       1

<PAGE>

         (i)     Any person is or becomes the "beneficial owner" (as that term
is defined in Rule 13d-3 under the Securities Exchange Act of 1934, as amended
(the "Exchange Act")), directly or indirectly, of securities representing twenty
percent (20%) or more of the total voting power of the Corporation's
then-outstanding Voting Securities;

         (ii)    During any period of two consecutive years, individuals who,
at the beginning of such period constitute the Board, together with any new
director whose election by the Board or nomination for election by the
Corporation's shareholders was approved by a vote of at least two-thirds (2/3)
of the directors then in office either who were directors at the beginning of
the two-year period, or whose election or nomination was previously so approved,
cease for any reason to constitute a majority of the Board; 

         (iii)   The shareholders of the Corporation approve a merger or
consolidation of the Corporation with any other Corporation, other than a merger
or consolidation that would result in the Voting Securities of the Corporation
outstanding immediately before such merger or consolidation continuing to
represent (either by remaining outstanding or by being converted into Voting
Securities of the surviving entity) at least eighty percent (80%) of the total
voting power represented by the Voting Securities of the Corporation or such
surviving entity outstanding immediately after such merger or consolidation; or

         (iv)    The shareholders of the Corporation approve a plan of complete
liquidation of the Corporation, or an agreement for the sale or disposition by
the Corporation (whether in one transaction or a series of transactions) of all
or substantially all of the Corporation's assets.

    (c)  Expenses: 

         (i)     Any expense, liability, or loss, including attorneys' fees,
judgments, fines, ERISA excise taxes and penalties, or amounts paid or to be
paid in settlement;

         (ii)    Any interest, assessments, or other charges imposed on any of
the items in subparagraph (i) above; and

         (iii)   Any federal, state, local, or foreign taxes imposed as a
result of the actual or deemed receipt of any payments under this Agreement paid
or incurred in connection with investigating, defending, being a witness in,
participating in (including on appeal), or preparing for any of the foregoing
in, any Proceeding relating to any indemnifiable event.

    (d)  Indemnifiable Event:  Any event or occurrence that takes place either
before or after the execution of this Agreement, related to the fact that
Indemnitee is or was a director or an officer of the Corporation, or while a
director or officer is or was serving at the request of the Corporation as a
director, officer, employee, trustee, agent, or fiduciary of another foreign or
domestic Corporation, partnership, joint venture, employee benefit plan, trust,
or other enterprise, or was a director, officer, employee, or agent of a foreign
or domestic Corporation that was a predecessor Corporation of the Corporation or
another enterprise at the request of such predecessor Corporation, or related to
anything done or not done by Indemnitee in any such


                                       2

<PAGE>

capacity, whether the basis of the Proceeding is an alleged action in an
official capacity as a director, officer, employee, or agent, or in any other
capacity while serving as a director, officer, employee, or agent of the
Corporation, as described in this paragraph.

    (e)  Independent Counsel:  The person or body appointed in connection with
item 3.

    (f)  Person:  "Person" (as that term is used in Sections 13(d) and 14(d) of
the Exchange Act, other than a trustee or other fiduciary holding securities
under an employee benefit plan of the Corporation acting in such capacity or a
Corporation owned, directly or indirectly, by the shareholders of the
Corporation in substantially the same proportions as their ownership of shares
of the Corporation at the date of this Agreement.

    (g)  Participant:  A person who is a party to, or witness or Participant
(including on appeal) in, a Proceeding.

    (h)  Potential Change in Control:  A state of affairs that shall be deemed
to exist if:

         (i)     The Corporation enters into an agreement or arrangement, the
consummation of which would result in the occurrence of a Change in Control; 

         (ii)    Any person (including the Corporation) announces publicly an
intention to take or to consider taking actions that, if consummated, would
constitute a Change in Control; 

         (iii)   Any person who is or becomes the beneficial owner, directly or
indirectly, of securities of the Corporation representing 10 percent or more of
the combined voting power of the Corporation's then-outstanding Voting
Securities, increases his or her beneficial ownership of such securities by five
percent (5%) or more over the percentage owned by such person on the date of
this Agreement; or

         (iv)    The Board adopts a resolution to the effect that, for purposes
of this Agreement, a Potential Change in Control has occurred.

    (i)  Proceeding:  Any threatened, pending, or completed action, suit, or
proceeding, or any inquiry, hearing or investigation, whether conducted by the
Corporation or any other party, that Indemnitee in good faith believes might
lead to the institution of any such action, suit, or proceeding, whether civil,
criminal, administrative, investigative, or other.

    (j)  Reviewing Party:  The person or body appointed in accordance with
paragraph 3.

    (k)  Voting Securities:  Any securities of the Corporation that have the
right to vote generally in the election of directors.


                                       3

<PAGE>

    2.   AGREEMENT TO INDEMNIFY.

    (a)  General Agreement.  In the event Indemnitee was, is, or becomes a
Participant in, or is threatened to be made a Participant in, a Proceeding by
reason of (or arising in part out of) an Indemnifiable Event, the Corporation
shall indemnify the Indemnitee from and against any and all Expenses to the
fullest extent permitted by law, as the same exists or may hereafter be amended
or interpreted (but in the case of any such amendment or interpretation, only to
the extent that such amendment or interpretation permits the Corporation to
provide broader indemnification rights than were permitted before this
Agreement).  The parties to this Agreement do not intend indemnification in
excess of that expressly permitted by statute, including, without limitation,
any indemnification provided by the Corporation's certificate of incorporation,
its bylaws, a vote of its shareholders or disinterested directors, or applicable
law.

    (b)  Initiation of Proceeding.  Notwithstanding anything in this Agreement
to the contrary, Indemnitee shall not be entitled to indemnification under this
Agreement in connection with any Proceeding initiated by Indemnitee against the
Corporation or any director or officer of the Corporation unless (i) the
Corporation has joined in or the Board has consented to the initiation of such
Proceeding; (ii) the Proceeding is one to enforce indemnification rights under
paragraph 5; or (iii) the Proceeding is instituted after a Change in Control and
the Independent Counsel has approved its initiation.

    (c)  Expense Advances.  If so requested by Indemnitee, the Corporation
shall within ten business days of such request, advance all Expenses to
Indemnitee (an "Expense Advance").  Notwithstanding the foregoing, to the extent
that the Reviewing Party determines that Indemnitee would not be permitted to be
so indemnified under applicable law, the Corporation shall be entitled to be
reimbursed by Indemnitee for all such amounts, and Indemnitee hereby agrees to
reimburse the Corporation promptly for the same.  If Indemnitee has commenced
legal proceedings in a court of competent jurisdiction to secure a determination
that Indemnitee should be indemnified under applicable law as provided in
paragraph 4, any determination made by the Reviewing Party that Indemnitee would
not be permitted to be indemnified under applicable law shall not be binding,
and Indemnitee shall not be required to reimburse the Corporation for any
expense advance until a final judicial determination is made (as to which all
rights of appeal have been exhausted or have lapsed).  Indemnitee's obligation
to reimburse the Corporation for expense advances shall be unsecured and no
interest shall be charged thereon.

    (d)  Mandatory Indemnification.  Notwithstanding any other provision of
this Agreement, to the extent that Indemnitee has been successful on the merits
in defense of any Proceeding relating in whole or in part to an Indemnifiable
Event or in defense of any issue or matter in such Proceeding, Indemnitee shall
be indemnified against all Expenses incurred in connection with such issue,
matter, or event, without the necessity of authorization in the specific case.

    (c)  Partial Indemnification.  If Indemnitee is entitled under any
provision of this Agreement to indemnification by the Corporation for a portion
of Expenses, but not for the total


                                       4

<PAGE>

amount of Expenses, the Corporation shall indemnify the Indemnitee for the
portion to which Indemnitee is entitled.

    (f)  Prohibited Indemnification.  No indemnification under this Agreement
shall be paid by the Corporation on account of any Proceeding in which judgment
is rendered against Indemnitee for an accounting of profits made from the
purchase or sale by Indemnitee of securities of the Corporation under the
provisions of Section 16(b) of the Exchange Act or similar provisions of any
federal, state, or local laws.

    3.   REVIEWING PARTY.  Before any Change in Control, the Reviewing Party
shall be any appropriate person or body consisting of a member or members of the
Board or any other person or body appointed by the Board who is not a party to
the Proceeding with respect to which indemnitee is seeking indemnification;
after a Change in Control, the Reviewing Party shall be the Independent Counsel.
With respect to all matters arising after a Change in Control (other than a
Change in Control approved by a majority of the directors of the board who were
directors immediately before the Change in Control) concerning the rights of
Indemnitee to indemnity payments and expense advances under this Agreement or
any other agreement or under applicable law or the Corporation's certificate of
incorporation or bylaws now or hereafter in effect relating to indemnification
for Indemnifiable Events, the Corporation shall seek legal advice only from the
Independent Counsel selected by Indemnitee and approved by the Corporation, the
approval of whom shall not be unreasonably withheld, and who has not otherwise
performed services for the Corporation or Indemnitee (other than in connection
with indemnification matters) within the last five years.  The Independent
Counsel shall not include any person who, under the applicable standards of
professional conduct then prevailing, would have a conflict of interest in
representing either the Corporation or Indemnitee in an action to determine
Indemnitee's rights under this Agreement.  The counsel, among other things,
shall render a written opinion to the Corporation and Indemnitee as to whether
and to what extent Indemnitee should be permitted to be indemnified under
applicable law.  The Corporation agrees to pay the reasonable fees of the
Independent Counsel and to indemnify fully such counsel against any and all
expenses, including attorneys' fees, claims, liabilities, loss, and damages
arising out of or relating to this Agreement or the engagement of the
Independent Counsel under this Agreement.

    4.   INDEMNIFICATION PROCESS AND APPEAL.

    (a)  Indemnification Payment.  Indemnitee shall receive indemnification of
Expenses from the Corporation in accordance with this Agreement as soon as
practicable after Indemnitee has made written demand on the Corporation for
indemnification, unless the Reviewing Party has given a written opinion to the
Corporation that Indemnitee is not entitled to indemnification under this
Agreement or applicable law.

    (b)  Suit To Enforce Rights.  Regardless of any action by the Reviewing
Party, if Indemnitee has not received full indemnification within 30 days after
making a demand in accordance with subparagraph (a) above, Indemnitee shall have
the right to enforce its 


                                       5

<PAGE>

indemnification rights under this Agreement by commencing litigation in any
court in the State of Delaware seeking an initial determination by the court or
challenging any determination by the Reviewing Party or any aspect of the
Agreement.  The Corporation hereby consents to service of process and to appear
in any such Proceeding.  Any determination by the Reviewing Party not challenged
by Indemnitee shall be binding on the Corporation and Indemnitee.  The remedy
provided in this paragraph shall be in addition to any other remedies available
to Indemnitee in law or equity.

    (c)  Defense to Indemnification, Burden of Proof, and Presumptions.  It
shall be a defense to any action brought by Indemnitee against the Corporation
to enforce this Agreement (other than an action brought to enforce a claim for
Expenses incurred in defending a Proceeding in advance of its final disposition
when the required undertaking has been tendered to the Corporation) that it is
not permissible under this Agreement or applicable law for the Corporation to
indemnify the Indemnitee for the amount claimed.  In connection with any such
action or any determination by the Reviewing Party or otherwise as to whether
Indemnitee is entitled to be indemnified under this Agreement, the burden of
proving such a defense or determination shall be on the Corporation.  Neither
the failure of the Reviewing Party or the Corporation (including its Board,
independent legal counsel, or its shareholders) to have made a determination
prior to the commencement of such action by Indemnitee that indemnification is
proper under the circumstances because Indemnitee has met the standard of
conduct set forth in applicable law, nor an actual determination by the
Reviewing Party or Corporation (including its Board, independent legal counsel,
or its shareholders) that Indemnitee had not met such applicable standard of
conduct shall be a defense to the action or create a presumption that Indemnitee
has not met the applicable standard of conduct.  For purposes of this Agreement,
the termination of any claim, action, suit, or proceeding, by judgment, order,
settlement (whether with or without court approval), conviction, or on a plea of
nolo contendere, or its equivalent, shall not create a presumption that
Indemnitee did not meet any particular standard of conduct or have any
particular belief, or that a court has determined that indemnification is not
permitted by applicable law.

    5.   INDEMNIFICATION FOR EXPENSES INCURRED IN ENFORCING RIGHTS.  The
Corporation shall indemnify the Indemnitee against any and all Expenses.  If
requested by Indemnitee, the Corporation shall, within ten business days of such
request, advance to Indemnitee such Expenses as are incurred by Indemnitee in
connection with any claim asserted against or action brought by Indemnitee for:

    (a)  Indemnification of Expenses or advances of Expenses by the Corporation
under this Agreement or any other agreement or under applicable law or the
Corporation's certificate of incorporation or bylaws now or hereafter in effect
relating to indemnification for Indemnifiable Events, or

    (b)  Recovery under directors' and officers' liability insurance policies
maintained by the Corporation for amounts paid in settlement if the Independent
Counsel has approved the settlement.


                                       6

<PAGE>

The Corporation shall not settle any Proceeding in any manner that would impose
any penalty or limitation on Indemnitee without Indemnitee's written consent. 
Neither the Corporation nor Indemnitee will unreasonably withhold its consent to
any proposed settlement.  The Corporation shall not be liable to indemnify the
Indemnitee under this Agreement with regard to any judicial award if the
Corporation was not given a reasonable and timely opportunity, at its expense,
to participate in the defense of such action; however, the Corporation's
liability under this Agreement shall not be excused if its participation in the
Proceeding was barred by this Agreement.

    6.   ESTABLISHMENT OF TRUST.  In the event of a Change in Control or a
Potential Change in Control, the Corporation shall, upon written request by
Indemnitee, create a trust for the benefit of the Indemnitee (the "Trust") and
from time to time, upon written request of Indemnitee, shall fund the Trust in
an amount sufficient to satisfy any and all Expenses reasonably anticipated at
the time of each such request to be incurred in connection with investigating,
preparing for, participating in, and/or defending any Proceeding relating to an
Indemnifiable Event.  The amount or amounts to be deposited in the Trust under
the foregoing funding obligation shall be determined by the Reviewing Party. 
The terms of the Trust shall provide that on a Change in Control, (i) the Trust
shall not be revoked or the principal invaded without the written consent of the
Indemnitee, (ii) the Trustee shall advance, within ten business days of a
request by the Indemnitee, all Expenses to the Indemnitee (provided that the
Indemnitee hereby agrees to reimburse the Trust under the same circumstances for
which the Indemnitee would be required to reimburse the Corporation under
subparagraph 2(c) above), (iii) the Trust shall continue to be funded by the
Corporation in accordance with the funding obligation set forth in this
paragraph, (iv) the Trustee shall promptly pay to the Indemnitee all amounts for
which the Indemnitee shall be entitled to indemnification under this Agreement
or otherwise, and (v) all unexpended funds in the Trust shall revert to the
Corporation on a final determination by the Reviewing Party or a court of
competent jurisdiction, as the case may be, that the Indemnitee has been fully
indemnified under the terms of this Agreement.  The Trustee shall be chosen by
the Indemnitee.  Nothing in this paragraph shall relieve the Corporation of any
of its obligations under this Agreement.  All income earned on the assets held
in the Trust shall be reported as income by the Corporation for federal, state,
local, and foreign tax purposes.  The Corporation shall pay all costs of
establishing and maintaining the Trust, and shall indemnify the Trustee against
any and all Expenses (including attorneys' fees), claims, liabilities, loss, and
damages arising out of or relating to this Agreement or the establishment and
maintenance of the Trust.


                                       7

<PAGE>

    7.   NONEXCLUSIVITY.  The rights of Indemnitee under this Agreement shall
be in addition to any other rights Indemnitee may have under the Corporation's
certificate of incorporation, bylaws, applicable law, or otherwise.  To the
extent that a change in applicable law (whether by statute or judicial decision)
permits greater indemnification by agreement than would be afforded currently
under the Corporation's certificate of incorporation, bylaws, applicable law, or
this Agreement, it is the intent of the parties that Indemnitee enjoy by this
Agreement the greater benefits afforded by such change.

    8.   LIABILITY INSURANCE.  To the extent the Corporation maintains an
insurance policy or policies providing directors' and officers' liability
insurance, Indemnitee shall be covered by such policy or policies, in accordance
with its or their terms, to the maximum extent of the coverage available for any
Corporation director or officer.

    9.   PERIOD OF LIMITATIONS.  No legal action shall be brought and no cause
of action shall be asserted by or on behalf of the Corporation or any affiliate
of the Corporation against Indemnitee, Indemnitee's spouse, heirs, executors, or
personal or legal representatives after the expiration of two years from the
date of accrual of such cause of action, or such longer period as may be
required by state law under the circumstances.  Any claim or cause of action of
the Corporation or its affiliate shall be extinguished and deemed released
unless asserted by the timely filing of a legal action within such period;
provided, however, that if any shorter period of limitations is otherwise
applicable to any such cause of action, the shorter period shall govern.

    10.  AMENDMENT OF THIS AGREEMENT.  No supplement, modification, or
amendment of this Agreement shall be binding unless executed in writing by both
of the parties to this Agreement.  No waiver of any of the provisions of this
Agreement shall operate as a waiver of any other provisions (whether or not
similar), nor shall such waiver constitute a continuing waiver.  Except as
specifically provided in this Agreement, no failure to exercise or any delay in
exercising any right or remedy shall constitute a waiver.

    11.  SUBROGATION.  In the event of payment under this Agreement, the
Corporation shall be subrogated to the extent of such payment to all of the
rights of recovery of Indemnitee, who shall execute all papers required and
shall do everything that may be necessary to secure such rights, including the
execution of such documents necessary to enable the Corporation effectively to
bring suit to enforce such rights.

    12.  NO DUPLICATION OF PAYMENTS.  The Corporation shall not be liable under
this Agreement to make any payment in connection with any claim made against
Indemnitee to the extent Indemnitee has otherwise received payment (under any
insurance policy, bylaw, or otherwise) of the amounts otherwise indemnifiable
under this Agreement.


                                       8

<PAGE>

    13.  BINDING EFFECT.  This Agreement shall be binding upon and inure to the
benefit of and be enforceable by the parties hereto and their respective
successors (including any direct or indirect successor by purchase, merger,
consolidation, or otherwise to all or substantially all of the business and/or
assets of the Corporation), assigns, spouses, heirs, and personal and legal
representatives. The Corporation shall require and cause any successor (whether
direct or indirect, by purchase, merger, consolidation, or otherwise) to all,
substantially all, or a substantial part, of the business or assets of the
Corporation or both, by written agreement in form and substance satisfactory to
Indemnitee, expressly to assume and agree to perform this Agreement in the same
manner and to the same extent that the Corporation would be required to perform
if no such succession had taken place.  The indemnification provided under this
Agreement shall continue as to Indemnitee for any action taken or not taken
while serving in an indemnified capacity pertaining to an Indemnifiable Event
even though Indemnitee may have ceased to serve in such capacity at the time of
any Proceeding.

    14.  SEVERABILITY.  If any portion of this Agreement shall be held by a
court of competent jurisdiction to be invalid, void, or otherwise unenforceable,
the remaining provisions shall remain enforceable to the fullest extent
permitted by law.  Furthermore, to the fullest extent possible, the provisions
of this Agreement (including, without limitation, each portion of this Agreement
containing any provision held to be invalid, void, or otherwise unenforceable,
that is not itself invalid, void, or unenforceable) shall be construed so as to
give effect to the intent manifested by the provision held invalid, void, or
unenforceable.

    15.  GOVERNING LAW.  This Agreement shall be governed by and construed and
enforced in accordance with the laws of the State of Delaware applicable to
contracts made and to be performed in this state without giving effect to the
principles of conflicts of laws.

    16.  NOTICES.  All notices, demands, and other communications required or
permitted under this Agreement shall be made in writing and shall be deemed to
have been duly given if delivered by hand, against receipt, or mailed, postage
prepaid, certified or registered mail, return receipt requested, and addressed
to the Corporation at:
    


                                       PARENT HOLDING CORP.
                                       755 Crossover Lane
                                       Memphis, TN  38117
                                       Attn: Ralph B. Lake
                                       Secretary and General Counsel 

and to Indemnitee at:
                                       ----------------------------------

                                       ----------------------------------

                                       ----------------------------------
                                       Attn:
                                            -----------------------------


                                       9

<PAGE>

Notice of change of address shall be effective only when given in accordance
with this agreement.  All notices complying with this paragraph shall be deemed
to have been received on the date of delivery or on the third business day after
mailing.

    IN WITNESS WHEREOF, the parties hereto have duly executed and delivered
this Agreement as of the day specified above.

PARENT HOLDING CORP.

    By:
       ------------------------------------
    Raymond E. Schultz
    Chief Executive Officer and Chairman of the Board


~[NAME OF INDEMNITEE]


    ---------------------------------------
    ~[Typed name]


                                       10


<PAGE>
 
                       THE 1997 EQUITY PARTICIPATION PLAN
                                       OF
                              PARENT HOLDING CORP.
                   (TO BE KNOWN AS PROMUS HOTEL CORPORATION)
 
    Parent Holding Corp. (to be renamed Promus Hotel Corporation), a Delaware
corporation, has adopted The 1997 Equity Participation Plan of Promus Hotel
Corporation (the "Plan"), effective                 , 1997, for the benefit of
its eligible employees, consultants and directors. The Plan consists of two
plans, one for the benefit of key Employees (as such term is defined below) and
consultants and one for the benefit of Independent Directors (as such term is
defined below).
 
    The purposes of this Plan are as follows:
 
    (1) To provide an additional incentive for directors, key Employees and
consultants to further the growth, development and financial success of the
Company by personally benefiting through the ownership of Company stock and/or
rights which recognize such growth, development and financial success.
 
    (2) To enable the Company to obtain and retain the services of directors,
key Employees and consultants considered essential to the long range success of
the Company by offering them an opportunity to own stock in the Company and/or
rights which will reflect the growth, development and financial success of the
Company.
 
                                   ARTICLE I
                                  DEFINITIONS
 
    1.1  GENERAL.  Wherever the following terms are used in this Plan they shall
have the meanings specified below, unless the context clearly indicates
otherwise.
 
    1.2  AWARD AGREEMENT.  "Award Agreement" shall mean a written agreement or
certificate executed by an authorized officer of the Company which shall contain
such terms and conditions with respect to an Award as the Committee (or the
Board, in the case of Awards granted to Independent Directors) shall determine,
consistent with the Plan.
 
    1.3  AWARD LIMIT.  "Award Limit" shall mean five-hundred thousand (500,000)
shares of Common Stock, as adjusted pursuant to Section 10.3.
 
    1.4  AWARD.  "Award" shall mean an Option, a Restricted Stock award, a
Performance Award, a Dividend Equivalents award, a Deferred Stock award, a Stock
Payment award or a Stock Appreciation Right which may be awarded or granted
under the Plan (collectively, "Awards").
 
    1.5  BOARD.  "Board" shall mean the Board of Directors of the Company.
 
    1.6  CHANGE IN CONTROL.  "Change in Control" shall mean the occurrence of
any of the following after the date hereof:
 
        (a) any "person" (as such term is used in Section 13(d) and 14(d) of the
    Exchange Act), other than an employee benefit plan of the Company, or a
    trustee or other fiduciary holding securities under an employee benefit plan
    of the Company, becomes a "beneficial owner" (as defined in Rule 13d-3 under
    the Exchange Act), directly or indirectly, of twenty-five percent (25%) or
    more of the Company's then outstanding voting securities carrying the right
    to vote in elections of persons to the Board, regardless of comparative
    voting power of such voting securities, and regardless of whether or not the
    Board shall have approved such Change in Control; or
 
        (b) during any period of two (2) consecutive years (not including any
    period prior to the execution of the Plan), individuals who at the beginning
    of such period constitute the Board (the "Incumbent Board") and any other
    new Director (other than a Director designated by a person who
 
                                       1
<PAGE>
    shall have entered into an agreement with the Company to effect a
    transaction described in clauses (a) or (b) of this subsection) whose
    election by the Board or nomination for election by the Company's
    stockholders was approved by a vote of at least two-thirds (2/3) of the
    Directors then still in office who either were Directors at the beginning of
    the period or whose election or nomination for election was previously
    approved (each such new Director being considered a member of the "Incumbent
    Board"), cease for any reason to constitute a majority thereof; or
 
        (c) the holders of securities of the Company entitled to vote thereon
    approve of the following:
 
           (i) a merger or consolidation of the Company with any other
       corporation regardless of which entity is the surviving company, other
       than a merger or consolidation which would result in the voting
       securities of the Company carrying the right to vote in elections of
       persons to the Board outstanding immediately prior thereto continuing to
       represent (either by remaining outstanding or by being converted into
       voting securities of the surviving entity) at least sixty-six and
       two-thirds percent (66 2/3%) of the Company's then-outstanding voting
       securities carrying the right to vote in elections of persons to the
       Board or such securities of such surviving entity outstanding immediately
       after such merger or consolidation, or
 
           (ii) a plan of complete liquidation of the Company or an agreement
       for the sale or disposition by the Company of all or substantially all of
       the Company's assets.
 
    Notwithstanding the definition of "Change in Control" as set forth in the
Plan, the Board shall have full and final authority, which shall be exercised in
its discretion, to determine conclusively whether a Change in Control has
occurred, and the date of the occurrence of such Change in Control and any
incidental matters relating thereto, with respect to a transaction or series of
transactions which have resulted or will result in a substantial portion of the
assets or business of the Company (as determined immediately prior to the
transaction or series of transactions by the Board in its sole discretion which
determination shall be final and conclusive) being held by a corporation at
least sixty-six and two-thirds percent (66 2/3%) of whose voting securities are
held, immediately following such transaction or series of transactions would
otherwise constitute a Change in Control under the definition set forth in the
Plan.
 
    1.7  CODE.  "Code" shall mean the Internal Revenue Code of 1986, as amended.
 
    1.8  COMMITTEE.  "Committee" shall mean the Human Resources Committee of the
Board, or another committee or subcommittee of the Board, appointed as provided
in Section 9.1.
 
    1.9  COMMON STOCK.  "Common Stock" shall mean the common stock of the
Company, par value $.01 per share, and any equity security of the Company issued
or authorized to be issued in the future, but excluding any preferred stock and
any warrants, options or other rights to purchase Common Stock. Debt securities
of the Company convertible into Common Stock shall be deemed equity securities
of the Company.
 
    1.10  COMPANY.  "Company" shall mean Parent Holding Corp. (to be renamed
Promus Hotel Corporation), a Delaware corporation.
 
    1.11  CORPORATE TRANSACTION.  "Corporate Transaction" shall mean any of the
following stockholder-approved transactions to which the Company is a party:
 
    (a) a merger or consolidation in which the Company is not the surviving
entity, except for a transaction the principal purpose of which is to change the
State in which the Company is incorporated, form a holding company or effect a
similar reorganization as to form whereupon the Plan and all Options are assumed
by the successor entity;
 
    (b) the sale, transfer, exchange or other disposition of all or
substantially all of the assets of the Company, in complete liquidation or
dissolution of the Company in a transaction not covered by the exceptions to
clause (a), above; or
 
                                       2
<PAGE>
    (c) any reverse merger in which the Company is the surviving entity but in
which securities possessing more than fifty percent (50%) of the total combined
voting power of the Company's outstanding securities are transferred or issued
to a person or persons different from those who held such securities immediately
prior to such merger.
 
    1.12  DEFERRED STOCK.  "Deferred Stock" shall mean Common Stock awarded
under Article VII of the Plan.
 
    1.13  DIRECTOR.  "Director" shall mean a member of the Board.
 
    1.14  DIVIDEND EQUIVALENT.  "Dividend Equivalent" shall mean a right to
receive the equivalent value (in cash or Common Stock) of dividends paid on
Common Stock, awarded under Article VII of the Plan.
 
    1.15  EMPLOYEE.  "Employee" shall mean any officer or other employee (as
defined in accordance with Section 3401(c) of the Code) of the Company, or of
any corporation which is a Subsidiary.
 
    1.16  EXCHANGE ACT.  "Exchange Act" shall mean the Securities Exchange Act
of 1934, as amended.
 
    1.17  FAIR MARKET VALUE.  "Fair Market Value" of a share of Common Stock as
of a given date shall be (i) the closing price of a share of Common Stock on the
principal exchange on which shares of Common Stock are then trading, if any (or
as reported on any composite index which includes such principal exchange), on
the trading day previous to such date, or if shares were not traded on the
trading day previous to such date, then on the next preceding date on which a
trade occurred, or (ii) if Common Stock is not traded on an exchange but is
quoted on Nasdaq or a successor quotation system, the mean between the closing
representative bid and asked prices for the Common Stock on the trading day
previous to such date as reported by Nasdaq or such successor quotation system;
or (iii) if Common Stock is not publicly traded on an exchange and not quoted on
Nasdaq or a successor quotation system, the Fair Market Value of a share of
Common Stock as established by the Committee (or the Board, in the case of
Options granted to Independent Directors) acting in good faith.
 
    1.18  GRANTEE.  "Grantee" shall mean an Employee, consultant or Independent
Director granted a Performance Award, Dividend Equivalent, Stock Payment or
Stock Appreciation Right, or an award of Deferred Stock, under the Plan.
 
    1.19  HOLDER.  "Holder" shall mean a person who has been granted or awarded
an Award.
 
    1.20  INCENTIVE STOCK OPTION.  "Incentive Stock Option" shall mean an option
which conforms to the applicable provisions of Section 422 of the Code and which
is designated as an Incentive Stock Option by the Committee.
 
    1.21  INDEPENDENT DIRECTOR.  "Independent Director" shall mean a member of
the Board who is not an Employee of the Company.
 
    1.22  NON-QUALIFIED STOCK OPTION.  "Non-Qualified Stock Option" shall mean
an Option which is not designated as an Incentive Stock Option by the Committee.
 
    1.23  OPTION.  "Option" shall mean a stock option granted under Article III
of the Plan. An Option granted under the Plan shall, as determined by the
Committee, be either a Non-Qualified Stock Option or an Incentive Stock Option;
PROVIDED, HOWEVER, that Options granted to Independent Directors and consultants
shall be Non-Qualified Stock Options.
 
    1.24  OPTIONEE.  "Optionee" shall mean an Employee, consultant or
Independent Director granted an Option under the Plan.
 
    1.25  PERFORMANCE AWARD.  "Performance Award" shall mean a cash bonus, stock
bonus or other performance or incentive award that is paid in cash, Common Stock
or a combination of both, awarded under Article VII of the Plan.
 
    1.26  PERFORMANCE CRITERIA.  "Performance Criteria" shall mean the following
business criteria with respect to the Company or any Subsidiary: (i) net income,
(ii) pre-tax income, (iii) operating income,
 
                                       3
<PAGE>
(iv) cash flow, (v) earnings per share, (vi) return on equity, (vii) return on
invested capital or assets, (viii) cost reductions or savings, (ix) funds from
operations, (x) appreciation in the fair market value of Common Stock and (xi)
earnings before any one or more of the following items: interest, taxes,
depreciation or amortization.
 
    1.27  PERMITTED TRANSFEREE.  "Permitted Transferee" shall mean (i) one or
more of the following family members of a Holder: spouse, former spouse, child
(whether natural or adopted), stepchild, any other lineal descendant of the
Holder, (ii) a trust, partnership or other entity established and existing for
the sole benefit of, or under the sole control of, one or more of the above
family members of the Holder, or (iii) any other transferee specifically
approved by the Committee after taking into account any state or federal tax or
securities laws applicable to transferable Awards.
 
    1.28  PLAN.  "Plan" shall mean The 1997 Equity Participation Plan of Parent
Holding Corp. (to be known as Promus Hotel Corporation).
 
    1.29  QDRO.  "QDRO" shall mean a qualified domestic relations order as
defined by the Code or Title I of the Employee Retirement Income Security Act of
1974, as amended, or the rules thereunder.
 
    1.30  RESTRICTED STOCK.  "Restricted Stock" shall mean Common Stock awarded
under Article VI of the Plan.
 
    1.31  RESTRICTED STOCKHOLDER.  "Restricted Stockholder" shall mean an
Employee, consultant or Independent Director granted an award of Restricted
Stock under Article VI of the Plan.
 
    1.32  RULE 16B-3.  "Rule 16b-3" shall mean that certain Rule 16b-3 under the
Exchange Act, as such Rule may be amended from time to time.
 
    1.33  SECTION 162(M) PARTICIPANT.  "Section 162(m) Participant" shall mean
any key Employee designated by the Committee as a key Employee whose
compensation for the fiscal year in which the key Employee is so designated or a
future fiscal year may be subject to the limit on deductible compensation
imposed by Section 162(m) of the Code.
 
    1.34  SECURITIES ACT.  "Securities Act" shall mean the Securities Act of
1933, as amended.
 
    1.35  STOCK APPRECIATION RIGHT.  "Stock Appreciation Right" shall mean a
stock appreciation right granted under Article VIII of the Plan.
 
    1.36  STOCK PAYMENT.  "Stock Payment" shall mean (i) a payment in the form
of shares of Common Stock, or (ii) an option or other right to purchase shares
of Common Stock, as part of a deferred compensation arrangement, made in lieu of
all or any portion of the compensation, including without limitation, salary,
bonuses and commissions, that would otherwise become payable to a key Employee,
consultant or Independent Director in cash, awarded under Article VII of the
Plan.
 
    1.37  SUBSIDIARY.  "Subsidiary" shall mean any corporation in an unbroken
chain of corporations beginning with the Company if each of the corporations
other than the last corporation in the unbroken chain then owns stock possessing
fifty percent (50%) or more of the total combined voting power of all classes of
stock in one of the other corporations in such chain.
 
    1.38  TERMINATION OF CONSULTANCY.  "Termination of Consultancy" shall mean
the time when the engagement of a Holder as a consultant to the Company or a
Subsidiary is terminated for any reason, with or without cause, including, but
not by way of limitation, by resignation, discharge, death or retirement; but
excluding terminations where there is a simultaneous commencement of employment
with the Company or any Subsidiary. The Committee, in its absolute discretion,
shall determine the effect of all matters and questions relating to Termination
of Consultancy, including, but not by way of limitation, the question of whether
a Termination of Consultancy resulted from a discharge for good cause, and all
questions of whether a particular leave of absence constitutes a Terminations of
Consultancy. Notwithstanding any other provision of the Plan, the Company or any
Subsidiary has an absolute and unrestricted right to
 
                                       4
<PAGE>
terminate a consultant's service at any time for any reason whatsoever, with or
without cause, except to the extent expressly provided otherwise in writing.
 
    1.39  TERMINATION OF DIRECTORSHIP.  "Termination of Directorship" shall mean
the time when an Optionee who is an Independent Director ceases to be a Director
for any reason, including, but not by way of limitation, a termination by
resignation, failure to be elected, death or retirement. The Board, in its sole
and absolute discretion, shall determine the effect of all matters and questions
relating to Termination of Directorship with respect to Independent Directors.
 
    1.40  TERMINATION OF EMPLOYMENT.  "Termination of Employment" shall mean the
time when the employee-employer relationship between a Holder and the Company or
any Subsidiary is terminated for any reason, with or without cause, including,
but not by way of limitation, a termination by resignation, discharge, death,
disability or retirement; but excluding (i) terminations where there is a
simultaneous reemployment or continuing employment of a Holder by the Company or
any Subsidiary, (ii) at the discretion of the Committee, terminations which
result in a temporary severance of the employee-employer relationship, and (iii)
at the discretion of the Committee, terminations which are followed by the
simultaneous establishment of a consulting relationship by the Company or a
Subsidiary with the former employee. The Committee, in its absolute discretion,
shall determine the effect of all matters and questions relating to Termination
of Employment, including, but not by way of limitation, the question of whether
a Termination of Employment resulted from a discharge for good cause, and all
questions of whether a particular leave of absence constitutes a Terminations of
Employment; PROVIDED, HOWEVER, that, with respect to Incentive Stock Options,
unless otherwise determined by the Committee in its discretion, a leave of
absence, change in status from an employee to an independent contractor or other
change in the employee-employer relationship shall constitute a Termination of
Employment if, and to the extent that, such leave of absence, change in status
or other change interrupts employment for the purposes of Section 422(a)(2) of
the Code and the then applicable regulations and revenue rulings under said
Section. Notwithstanding any other provision of the Plan, the Company or any
Subsidiary has an absolute and unrestricted right to terminate an Employee's
employment at any time for any reason whatsoever, with or without cause, except
to the extent expressly provided otherwise in writing.
 
                                   ARTICLE II
                             SHARES SUBJECT TO PLAN
 
    2.1  SHARES SUBJECT TO PLAN.
 
    (a) The shares of stock subject to Awards shall be Common Stock, initially
shares of the Company's Common Stock, par value $.01 per share. The aggregate
number of such shares which may be issued upon grant or exercise of Awards under
the Plan shall not exceed ten million (10,000,000), provided, however, that the
aggregate number of shares which may be issued upon grant or exercise of Awards
which are not Options or Awards which are not issued in lieu of cash payments of
compensation or directors' fees shall not exceed one-hundred and fifty thousand
(150,000). The shares of Common Stock issuable upon exercise of such Options or
rights or upon any such awards may be either previously authorized but unissued
shares or treasury shares.
 
    (b) The maximum number of shares which may be subject to Awards granted
under the Plan to any individual in any calendar year shall not exceed the Award
Limit. To the extent required by Section 162(m) of the Code, shares subject to
Options which are canceled continue to be counted against the Award Limit.
 
    2.2  ADD-BACK OF OPTIONS AND OTHER RIGHTS.  If any Option, or other right to
acquire shares of Common Stock under any other award under the Plan, expires or
is canceled without having been fully exercised, or is exercised in whole or in
part for cash as permitted by the Plan, the number of shares subject to such
Option or other right but as to which such Option or other right was not
exercised prior to its expiration, cancellation or exercise may again be
optioned, granted or awarded hereunder, subject to the limitations of Section
2.1. Furthermore, any shares subject to Awards which are adjusted pursuant to
 
                                       5
<PAGE>
Section 10.3 and become exercisable with respect to shares of stock of another
corporation shall be considered cancelled and may again be optioned, granted or
awarded hereunder, subject to the limitations of Section 2.1. Shares of Common
Stock which are delivered by the Holder or withheld by the Company upon the
exercise of any Award under the Plan, in payment of the exercise price thereof
or tax withholding thereon, may again be optioned, granted or awarded hereunder,
subject to the limitations of Section 2.1. If any share of Restricted Stock is
forfeited by the Grantee or repurchased by the Company pursuant to Section 6.6
hereof, such share may again be optioned, granted or awarded hereunder, subject
to the limitations of Section 2.1. Notwithstanding the provisions of this
Section 2.2, no shares of Common Stock may again be optioned, granted or awarded
if such action would cause an Incentive Stock Option to fail to qualify as an
incentive stock option under Section 422 of the Code.
 
                                  ARTICLE III
                              GRANTING OF OPTIONS
 
    3.1  ELIGIBILITY.  Any Employee or consultant selected by the Committee
pursuant to Section 3.4(a)(i) shall be eligible to be granted an Option. Each
Independent Director of the Company shall be eligible to be granted Options at
the times and in the manner set forth in subsections (d) and (e) of Section 3.4.
 
    3.2  DISQUALIFICATION FOR STOCK OWNERSHIP.  No person may be granted an
Incentive Stock Option under the Plan if such person, at the time the Incentive
Stock Option is granted, owns stock possessing more than ten percent (10%) of
the total combined voting power of all classes of stock of the Company or any
then existing Subsidiary or parent corporation (within the meaning of Section
422 of the Code) unless such Incentive Stock Option conforms to the applicable
provisions of Section 422 of the Code.
 
    3.3  QUALIFICATION OF INCENTIVE STOCK OPTIONS.  No Incentive Stock Option
shall be granted to any person who is not an Employee.
 
    3.4  GRANTING OF OPTIONS
 
    (a) The Committee shall from time to time, in its absolute discretion, and
subject to applicable limitations of the Plan:
 
        (i) Determine which Employees are key Employees and select from among
    the key Employees or consultants (including Employees or consultants who
    have previously received Awards under the Plan) such of them as in its
    opinion should be granted Options;
 
        (ii) Subject to the Award Limit, determine the number of shares to be
    subject to such Options granted to the selected key Employees or
    consultants;
 
       (iii) Subject to Section 3.3, determine whether such Options are to be
    Incentive Stock Options or Non-Qualified Stock Options and whether such
    Options are to qualify as performance-based compensation as described in
    Section 162(m)(4)(C) of the Code; and
 
        (iv) Determine the terms and conditions of such Options, consistent with
    the Plan; PROVIDED, HOWEVER, that the terms and conditions of Options
    intended to qualify as performance-based compensation as described in
    Section 162(m)(4)(C) of the Code shall include, but not be limited to, such
    terms and conditions as may be necessary to meet the applicable provisions
    of Section 162(m) of the Code.
 
    (b) Upon the selection of a key Employee or consultant to be granted an
Option, the Committee shall instruct the Secretary of the Company to issue the
Option and may impose such conditions on the grant of the Option as it deems
appropriate.
 
                                       6
<PAGE>
    (c) Any Incentive Stock Option granted under the Plan may be modified by the
Committee, with the consent of the Optionee, to disqualify such Option from
treatment as an "incentive stock option" under Section 422 of the Code.
 
    (d) During the term of the Plan, each person who is an Independent Director
as of the date of the consummation of the merger of Promus Hotel Corporation and
Doubletree Corporation shall be granted an Option to purchase ten thousand
(10,000) shares of Common Stock (subject to adjustment as provided in Section
10.3) on the date of the closing of such merger. During the term of the Plan, a
person who is initially elected to the Board after the consummation of the
merger of Promus Hotel Corporation and Doubletree Corporation and who is an
Independent Director at the time of such initial election automatically shall be
granted an Option to purchase ten thousand (10,000) shares of Common Stock
(subject to adjustment as provided in Section 10.3) on the date of such initial
election. Members of the Board who are employees of the Company who subsequently
retire from the Company and remain on the Board will not receive an initial
Option grant pursuant to the preceding sentence, but to the extent that they are
otherwise eligible, will receive, after retirement from employment with the
Company, Options as described in the preceding sentence. All the foregoing
Option grants authorized by this Section 3.4(d) are subject to stockholder
approval of the Plan.
 
    (e) Options may be granted under the Plan to Employees and consultants in
lieu of cash bonuses which would otherwise be payable to such Employees and
consultants and to Independent Directors in lieu of directors' fees which would
otherwise be payable to such Independent Directors, pursuant to such policies
which may be adopted by the Committee (or the Board, in the case of Options
granted to Independent Directors) from time to time.
 
                                   ARTICLE IV
                                TERMS OF OPTIONS
 
    4.1  AWARD AGREEMENT.  Each Option shall be evidenced by an Award Agreement.
Award Agreements evidencing Options intended to qualify as performance-based
compensation as described in Section 162(m)(4)(C) of the Code shall contain such
terms and conditions as may be necessary to meet the applicable provisions of
Section 162(m) of the Code. Award Agreements evidencing Incentive Stock Options
shall contain such terms and conditions as may be necessary to meet the
applicable provisions of Section 422 of the Code.
 
    4.2  OPTION PRICE.  The price per share of the shares subject to each Option
shall be set by the Committee; PROVIDED, HOWEVER, that such price shall be no
less than 100% of the Fair Market Value of a share of Common Stock on the date
the Option is granted; PROVIDED, HOWEVER, that (i) in the case of Incentive
Stock Options granted to an individual then owning (within the meaning of
Section 424(d) of the Code) more than 10% of the total combined voting power of
all classes of stock of the Company or any Subsidiary or parent corporation
thereof (within the meaning of Section 422 of the Code), such price shall not be
less than 110% of the Fair Market Value of a share of Common Stock on the date
the Option is granted (or the date the Option is modified, extended or renewed
for purposes of Section 424(h) of the Code) and (ii) in the case of Options
granted to Independent Directors under Section 3.4(d), such price shall equal
100% of the Fair Market Value of a share of Common Stock on the date the Option
is granted.
 
    4.3  OPTION TERM.  The term of an Option shall be set by the Committee in
its discretion, but shall not be more than ten (10) years from the date the
Option is granted; PROVIDED, HOWEVER, that, (i) in the case of Options granted
to Independent Directors under Section 3.4(d), the term shall be ten (10) years
from the date the Option is granted, without variation or acceleration
hereunder, but subject to Section 5.6, and (ii) in the case of Incentive Stock
Options, the term shall not be more than five (5) years from the date the
Incentive Stock Option is granted if the Incentive Stock Option is granted to an
individual then owning (within the meaning of Section 424(d) of the Code) more
than 10% of the total combined voting power of all classes of stock of the
Company or any Subsidiary or parent corporation thereof (within the meaning of
 
                                       7
<PAGE>
Section 422 of the Code). Except as limited by requirements of Section 422 of
the Code and regulations and rulings thereunder applicable to Incentive Stock
Options, the Committee may extend the term of any outstanding Option in
connection with any Termination of Employment or Termination of Consultancy of
the Optionee, or amend any other term or condition of such Option relating to
such a termination.
 
    4.4  OPTION VESTING
 
    (a) The period during which the right to exercise an Option in whole or in
part vests in the Optionee shall be set by the Committee and the Committee may
determine that an Option may not be exercised in whole or in part for a
specified period after it is granted; PROVIDED, HOWEVER, that, unless the
Committee otherwise provides in the terms of the Option or otherwise, no Option
shall be exercisable by any Optionee who is then subject to Section 16 of the
Exchange Act within the period ending six months and one day after the date the
Option is granted; and provided, further, that Options granted to Independent
Directors under Section 3.4(d) shall become exercisable in cumulative annual
installments of 25% on each of the first, second, third and fourth anniversaries
of the date of Option grant, without variation or acceleration hereunder except
as provided in Section 10.3(b). At any time after grant of an Option, the
Committee may, in its sole and absolute discretion and subject to whatever terms
and conditions it selects, accelerate the period during which an Option (except
an Option granted to an Independent Director) vests.
 
    (b) No portion of an Option which is unexercisable at Termination of
Employment, Termination of Directorship or Termination of Consultancy, as
applicable, shall thereafter become exercisable, except as may be otherwise
provided by the Committee in the case of Options granted to Employees or
consultants either in the Award Agreement or by action of the Committee
following the grant of the Option.
 
    (c) To the extent that the aggregate Fair Market Value of stock with respect
to which "incentive stock options" (within the meaning of Section 422 of the
Code, but without regard to Section 422(d) of the Code) are exercisable for the
first time by an Optionee during any calendar year (under the Plan and all other
incentive stock option plans of the Company and any parent or subsidiary
corporation (within the meaning of Section 422 of the Code) of the Company)
exceeds $100,000, such Options shall be treated as Non-Qualified Options to the
extent required by Section 422 of the Code. The rule set forth in the preceding
sentence shall be applied by taking Options into account in the order in which
they were granted. For purposes of this Section 4.4(c), the Fair Market Value of
stock shall be determined as of the time the Option with respect to such stock
is granted.
 
                                   ARTICLE V
                              EXERCISE OF OPTIONS
 
    5.1  PARTIAL EXERCISE.  An exercisable Option may be exercised in whole or
in part. However, an Option shall not be exercisable with respect to fractional
shares and the Committee (or the Board, in the case of Options granted to
Independent Directors) may require that, by the terms of the Option, a partial
exercise be with respect to a minimum number of shares.
 
    5.2  MANNER OF EXERCISE.  All or a portion of an exercisable Option shall be
deemed exercised upon delivery of all of the following to the Secretary of the
Company or his office:
 
    (a) A written notice complying with the applicable rules established by the
Committee (or the Board, in the case of Options granted to Independent
Directors) stating that the Option, or a portion thereof, is exercised. The
notice shall be signed by the Optionee or other person then entitled to exercise
the Option or such portion of the Option;
 
    (b) Such representations and documents as the Committee (or the Board, in
the case of Options granted to Independent Directors), in its absolute
discretion, deems necessary or advisable to effect compliance with all
applicable provisions of the Securities Act of 1933, as amended, and any other
federal or state securities laws or regulations. The Committee or Board may, in
its absolute discretion, also take
 
                                       8
<PAGE>
whatever additional actions it deems appropriate to effect such compliance
including, without limitation, placing legends on share certificates and issuing
stop-transfer notices to agents and registrars;
 
    (c) In the event that the Option shall be exercised pursuant to Section 10.1
by any person or persons other than the Optionee, appropriate proof of the right
of such person or persons to exercise the Option; and
 
    (d) Full cash payment to the Secretary of the Company for the shares with
respect to which the Option, or portion thereof, is exercised. However, the
Committee (or the Board, in the case of Options granted to Independent
Directors), may in its discretion (i) allow a delay in payment up to thirty (30)
days from the date the Option, or portion thereof, is exercised; (ii) allow
payment, in whole or in part, through the delivery of shares of Common Stock
which have been owned by the Optionee for at least six months, duly endorsed for
transfer to the Company with a Fair Market Value on the date of delivery equal
to the aggregate exercise price of the Option or exercised portion thereof;
(iii) allow payment, in whole or in part, through the surrender of shares of
Common Stock then issuable upon exercise of the Option having a Fair Market
Value on the date of Option exercise equal to the aggregate exercise price of
the Option or exercised portion thereof; (iv) allow payment, in whole or in
part, through the delivery of property of any kind which constitutes good and
valuable consideration; (v) allow payment, in whole or in part, through the
delivery of a full recourse promissory note bearing interest (at no less than
such rate as shall then preclude the imputation of interest under the Code) and
payable upon such terms as may be prescribed by the Committee or the Board; (vi)
allow payment, in whole or in part, through the delivery of a notice that the
Optionee has placed a market sell order with a broker with respect to shares of
Common Stock then issuable upon exercise of the Option, and that the broker has
been directed to pay a sufficient portion of the net proceeds of the sale to the
Company in satisfaction of the Option exercise price; or (vii) allow payment
through any combination of the consideration provided in the foregoing
subparagraphs (ii), (iii), (iv), (v) and (vi). In the case of a promissory note,
the Committee (or the Board, in the case of Options granted to Independent
Directors) may also prescribe the form of such note and the security to be given
for such note. The Option may not be exercised, however, by delivery of a
promissory note or by a loan from the Company when or where such loan or other
extension of credit is prohibited by law.
 
    5.3  CONDITIONS TO ISSUANCE OF STOCK CERTIFICATES.  The Company shall not be
required to issue or deliver any certificate or certificates for shares of stock
purchased upon the exercise of any Option or portion thereof prior to
fulfillment of all of the following conditions:
 
    (a) The admission of such shares to listing on all stock exchanges on which
such class of stock is then listed;
 
    (b) The completion of any registration or other qualification of such shares
under any state or federal law, or under the rulings or regulations of the
Securities and Exchange Commission or any other governmental regulatory body
which the Committee or Board shall, in its absolute discretion, deem necessary
or advisable;
 
    (c) The obtaining of any approval or other clearance from any state or
federal governmental agency which the Committee (or Board, in the case of
Options granted to Independent Directors) shall, in its absolute discretion,
determine to be necessary or advisable;
 
    (d) The lapse of such reasonable period of time following the exercise of
the Option as the Committee (or Board, in the case of Options granted to
Independent Directors) may establish from time to time for reasons of
administrative convenience; and
 
    (e) The receipt by the Company of full payment for such shares, including
payment of any applicable withholding tax, which in the discretion of the
Committee or the Board may be in the form of consideration used by the Optionee
to pay for such shares under Section 5.2(d).
 
                                       9
<PAGE>
    5.4  RIGHTS AS STOCKHOLDERS.  Optionees shall not be, nor have any of the
rights or privileges of, stockholders of the Company in respect of any shares
purchasable upon the exercise of any part of an Option unless and until
certificates representing such shares have been issued by the Company to such
Optionees.
 
    5.5  OWNERSHIP AND TRANSFER RESTRICTIONS.  The Committee (or Board, in the
case of Options granted to Independent Directors), in its absolute discretion,
may impose such restrictions on the ownership and transferability of the shares
purchasable upon the exercise of an Option as it deems appropriate. Any such
restriction shall be set forth in the respective Award Agreement and may be
referred to on the certificates evidencing such shares. The Committee may
require the Employee to give the Company prompt notice of any disposition of
shares of Common Stock acquired by exercise of an Incentive Stock Option within
(i) two years from the date of granting (including the date the Option is
modified, extended or renewed for purposes of Section 424(h) of the Code) such
Option to such Employee or (ii) one year after the transfer of such shares to
such Employee. The Committee may direct that the certificates evidencing shares
acquired by exercise of an Option refer to such requirement to give prompt
notice of disposition.
 
    5.6  LIMITATIONS ON EXERCISE OF OPTIONS GRANTED TO INDEPENDENT
DIRECTORS.  No Option granted to an Independent Director under Section 3.4(d)
may be exercised to any extent by anyone after the first to occur of the
following events:
 
    (a) The expiration of twelve (12) months from the date of the Optionee's
death;
 
    (b) the expiration of twelve (12) months from the date of the Optionee's
Termination of Directorship by reason of his permanent and total disability
(within the meaning of Section 22(e)(3) of the Code);
 
    (c) the expiration of three (3) months from the date of the Optionee's
Termination of Directorship for any reason other than such Optionee's death or
his permanent and total disability, unless the Optionee dies within said
three-month period; or
 
    (d) The expiration of ten (10) years from the date the Option was granted.
 
    5.7  ADDITIONAL LIMITATIONS ON EXERCISE OF OPTIONS.  Optionees may be
required to comply with any timing or other restrictions with respect to the
settlement or exercise of an Option, including a window-period limitation, as
may be imposed in the discretion of the Board or the Committee.
 
                                   ARTICLE VI
                           AWARD OF RESTRICTED STOCK
 
    6.1  ELIGIBILITY.  Subject to the Award Limit, Restricted Stock may be
awarded to any Employee who the Committee determines is a key Employee or any
consultant whom the Committee determines should receive such an award. In
addition, Independent Directors may be awarded Restricted Stock in lieu of
directors' fees, as provided in Section 6.2(d).
 
                                       10
<PAGE>
    6.2  AWARD OF RESTRICTED STOCK
 
    (a) The Committee may from time to time, in its absolute discretion:
 
        (i) Determine which Employees are key Employees and select from among
    the key Employees or consultants (including Employees or consultants who
    have previously received other awards under the Plan) such of them as in its
    opinion should be awarded Restricted Stock; and
 
        (ii) Determine the purchase price, if any, and other terms and
    conditions applicable to such Restricted Stock, consistent with the Plan.
 
    (b) The Committee shall establish the purchase price, if any, and form of
payment for Restricted Stock awarded to Employees or consultants; PROVIDED,
HOWEVER, that such purchase price shall be no less than the par value of the
Common Stock to be purchased, unless otherwise permitted by applicable state
law. In all cases, legal consideration shall be required for each issuance of
Restricted Stock.
 
    (c) Upon the selection of a key Employee or consultant to be awarded
Restricted Stock, the Committee shall instruct the Secretary of the Company to
issue such Restricted Stock and may impose such conditions on the issuance of
such Restricted Stock as it deems appropriate.
 
    (d) Restricted Stock may be awarded to Independent Directors in payment of a
portion of their directors' fees, pursuant to such policies which may be adopted
by the Board from time to time.
 
    6.3  AWARD AGREEMENT.  Restricted Stock shall be issued only pursuant to an
Award Agreement.
 
    6.4  RIGHTS AS STOCKHOLDERS.  Subject to Section 6.5, upon delivery of the
shares of Restricted Stock to the escrow holder pursuant to Section 6.7, the
Restricted Stockholder shall have, unless otherwise provided by the Committee
(or the Board, in the case of Restricted Stock awarded to Independent
Directors), all the rights of a stockholder with respect to said shares, subject
to the restrictions in his Award Agreement, including the right to receive all
dividends and other distributions paid or made with respect to the shares;
PROVIDED, HOWEVER, that in the discretion of the Committee (or the Board, in the
case of Restricted Stock awarded to Independent Directors), any extraordinary
distributions with respect to the Common Stock shall be subject to the
restrictions set forth in Section 6.5.
 
    6.5  RESTRICTION.  All shares of Restricted Stock issued under the Plan
(including any shares received by holders thereof with respect to shares of
Restricted Stock as a result of stock dividends, stock splits or any other form
of recapitalization) shall, in the terms of each individual Award Agreement, be
subject to such restrictions as the Committee (or the Board, in the case of
Restricted Stock awarded to Independent Directors) shall provide, which
restrictions may include, without limitation, restrictions concerning voting
rights and transferability and restrictions based on duration of employment with
the Company, Company performance and individual performance; PROVIDED, HOWEVER,
that, unless the Committee (or the Board, in the case of Restricted Stock
awarded to Independent Directors) otherwise provides in the terms of the Award
Agreement or otherwise, no share of Restricted Stock granted to a person subject
to Section 16 of the Exchange Act shall be sold, assigned or otherwise
transferred until at least six months and one day have elapsed from the date on
which the Restricted Stock was issued, and PROVIDED, FURTHER, that, except with
respect to shares of Restricted Stock granted pursuant to Section 6.9, by action
taken after the Restricted Stock is issued, the Committee (or the Board, in the
case of Restricted Stock awarded to Independent Directors) may, on such terms
and conditions as it may determine to be appropriate, remove any or all of the
restrictions imposed by the terms of the Award Agreement. Restricted Stock may
not be sold or encumbered until all restrictions are terminated or expire. If no
consideration was paid by the Restricted Stockholder upon issuance, a Restricted
Stockholder's rights in unvested Restricted Stock shall lapse upon Termination
of Employment or, if applicable, upon Termination of Consultancy with the
Company.
 
    6.6  REPURCHASE OF RESTRICTED STOCK.  The Committee (or the Board, in the
case of Restricted Stock awarded to Independent Directors) shall provide in the
terms of each individual Award Agreement that
 
                                       11
<PAGE>
the Company shall have the right to repurchase from the Restricted Stockholder
the Restricted Stock then subject to restrictions under the Award Agreement
immediately upon a Termination of Employment or, if applicable, upon a
Termination of Consultancy or Termination of Directorship between the Restricted
Stockholder and the Company, at a cash price per share equal to the price paid
by the Restricted Stockholder for such Restricted Stock.
 
    6.7  ESCROW.  The Secretary of the Company or such other escrow holder as
the Committee (or the Board, in the case of Restricted Stock awarded to
Independent Directors) may appoint shall retain physical custody of each
certificate representing Restricted Stock until all of the restrictions imposed
under the Award Agreement with respect to the shares evidenced by such
certificate expire or shall have been removed.
 
    6.8  LEGEND.  In order to enforce the restrictions imposed upon shares of
Restricted Stock hereunder, the Committee (or the Board, in the case of
Restricted Stock awarded to Independent Directors) shall cause a legend or
legends to be placed on certificates representing all shares of Restricted Stock
that are still subject to restrictions under Award Agreements, which legend or
legends shall make appropriate reference to the conditions imposed thereby.
 
    6.9  PROVISIONS APPLICABLE TO SECTION 162(M) PARTICIPANTS.
 
    (a) Notwithstanding anything in the Plan to the contrary, the Committee may
grant Restricted Stock to a Section 162(m) Participant the restrictions with
respect to which lapse upon the attainment of performance goals which are
related to one or more of the Performance Criteria.
 
    (b) To the extent necessary to comply with the performance-based
compensation requirements of Section 162(m)(4)(C) of the Code, with respect to
Restricted Stock which may be granted to one or more Section 162(m)
Participants, no later than ninety (90) days following the commencement of any
designated period of service (or such other time as may be required or permitted
by Section 162(m) of the Code), the Committee shall, in writing, (i) designate
one or more Section 162(m) Participants, (ii) select the Performance Criteria
applicable to the designated period of service, (iii) establish the various
performance targets, in terms of an objective formula or standard, and amounts
of Restricted Stock which may be earned for such fiscal year or other designated
fiscal period or period of service and (iv) specify the relationship between
Performance Criteria and the performance targets and the amounts of Restricted
Stock to be earned by each Section 162(m) Participant for such fiscal year or
other designated fiscal period or period of service. Following the completion of
each fiscal year or other designated fiscal period or period of service, the
Committee shall certify in writing whether the applicable performance targets
have been achieved for such fiscal year or other designated fiscal period or
period of service. In determining the amount earned by a Section 162(m)
Participant, the Committee shall have the right to reduce (but not to increase)
the amount payable at a given level of performance to take into account
additional factors that the Committee may deem relevant to the assessment of
individual or corporate performance for the fiscal year or other designated
fiscal period or period of service.
 
    6.10  SECTION 83(B) ELECTION.  If a Restricted Stockholder makes an election
under Section 83(b) of the Code, or any successor section thereto, to be taxed
with respect to the Restricted Stock as of the date of transfer of the
Restricted Stock rather than as of the date or dates upon which the Restricted
Stockholder would otherwise be taxable under Section 83(a) of the Code, the
Restricted Stockholder shall deliver a copy of such election to the Company
immediately after filing such election with the Internal Revenue Service.
 
                                       12
<PAGE>
                                  ARTICLE VII
                   PERFORMANCE AWARDS, DIVIDEND EQUIVALENTS,
                         DEFERRED STOCK, STOCK PAYMENTS
 
    7.1  ELIGIBILITY.  Subject to the Award Limit, one or more Performance
Awards, Dividend Equivalents, awards of Deferred Stock, and/or Stock Payments
may be granted to any Employee whom the Committee determines is a key Employee
or any consultant whom the Committee determines should receive such an award. In
addition, Independent Directors may be granted Stock Payments and Deferred Stock
in lieu of directors' fees, as provided in Sections 7.4 and 7.5.
 
    7.2  PERFORMANCE AWARDS.  Any key Employee or consultant selected by the
Committee may be granted one or more Performance Awards. The value of such
Performance Awards may be linked to any one or more of Performance Criteria or
other specific performance criteria determined appropriate by the Committee, in
each case on a specified date or dates or over any period or periods determined
by the Committee. In making such determinations, the Committee shall consider
(among such other factors as it deems relevant in light of the specific type of
award) the contributions, responsibilities and other compensation of the
particular key Employee or consultant.
 
    7.3  DIVIDEND EQUIVALENTS.  Any key Employee or consultant selected by the
Committee may be granted Dividend Equivalents based on the dividends declared on
Common Stock, to be credited as of dividend payment dates, during the period
between the date an Option, Stock Appreciation Right, Deferred Stock or
Performance Award is granted, and the date such Option, Stock Appreciation
Right, Deferred Stock or Performance Award is exercised, vests or expires, as
determined by the Committee. Such Dividend Equivalents shall be converted to
cash or additional shares of Common Stock by such formula and at such time and
subject to such limitations as may be determined by the Committee. With respect
to Dividend Equivalents granted with respect to Options intended to be qualified
performance-based compensation for purposes of Section 162(m) of the Code, such
Dividend Equivalents shall be payable regardless of whether such Option is
exercised.
 
    7.4  STOCK PAYMENTS.  Any key Employee or consultant selected by the
Committee may receive Stock Payments in the manner determined from time to time
by the Committee. The number of shares shall be determined by the Committee and
may be based upon the Performance Criteria or other specific performance
criteria determined appropriate by the Committee, determined on the date such
Stock Payment is made or on any date thereafter. During the term of the Plan, on
the date of each annual meeting of stockholders, each person who is an
Independent Director and who is entitled to receive a payment of cash fees on
such date shall be granted a Stock Payment, in lieu of cash fees which such
Independent Director would otherwise receive, which shall have an aggregate Fair
Market Value of $15,000 as of the date of such grant.
 
    7.5  DEFERRED STOCK.  Any key Employee or consultant selected by the
Committee may be granted an award of Deferred Stock in the manner determined
from time to time by the Committee. The number of shares of Deferred Stock shall
be determined by the Committee and may be linked to the Performance Criteria or
other specific performance criteria determined to be appropriate by the
Committee, in each case on a specified date or dates or over any period or
periods determined by the Committee. In addition, Deferred Stock may be granted
to Independent Directors in lieu of directors' fees which would otherwise be
payable to such Independent Directors, pursuant to such policies as may be
adopted by the Board from time to time. Common Stock underlying a Deferred Stock
award will not be issued until the Deferred Stock award has vested, pursuant to
a vesting schedule or performance criteria set by the Committee. Unless
otherwise provided by the Committee, a Grantee of Deferred Stock shall have no
rights as a Company stockholder with respect to such Deferred Stock until such
time as the award has vested and the Common Stock underlying the award has been
issued.
 
                                       13
<PAGE>
    7.6  AWARD AGREEMENT.  Each Performance Award, Dividend Equivalent, award of
Deferred Stock and/or Stock Payment shall be evidenced by an Award Agreement.
 
    7.7  TERM.  The term of a Performance Award, Dividend Equivalent, award of
Deferred Stock and/ or Stock Payment shall be set by the Committee (or the
Board, in the case of Awards granted to Independent Directors) in its
discretion.
 
    7.8  EXERCISE OR PURCHASE PRICE.  The Committee (or the Board, in the case
of Awards granted to Independent Directors) may establish the exercise or
purchase price of a Performance Award, shares of Deferred Stock, or shares
received as a Stock Payment; PROVIDED, HOWEVER, that such price shall not be
less than the par value for a share of Common Stock, unless otherwise permitted
by applicable state law.
 
    7.9  EXERCISE UPON TERMINATION OF EMPLOYMENT.  A Performance Award, Dividend
Equivalent, award of Deferred Stock and/or Stock Payment is exercisable or
payable only while the Grantee is an Employee or consultant; PROVIDED, HOWEVER,
that except with respect to Performance Awards granted pursuant to Section 7.11,
the Committee in its sole and absolute discretion may provide that the
Performance Awards may be exercised or paid following a Termination of
Employment or a Termination of Consultancy without cause, or following a change
in control of the Company, or because of the Grantee's retirement, death or
disability, or otherwise.
 
    7.10  PAYMENT ON EXERCISE.  Payment of the amount determined under Section
7.1 or 7.2 above shall be in cash, in Common Stock or a combination of both, as
determined by the Committee. To the extent any payment under this Article VII is
effected in Common Stock, it shall be made subject to satisfaction of all
provisions of Section 5.3.
 
    7.11  PROVISIONS APPLICABLE TO SECTION 162(M) PARTICIPANTS.
 
    (a) Notwithstanding anything in the Plan to the contrary, the Committee may
grant any performance or incentive awards described in Article VII to a Section
162(m) Participant that vest or become exercisable or payable upon the
attainment of performance goals which are related to one or more of the
Performance Criteria.
 
    (b) To the extent necessary to comply with the performance-based
compensation requirements of Section 162(m)(4)(C) of the Code, with respect to
performance or incentive awards described in Article VII which may be granted to
one or more Section 162(m) Participants, no later than ninety (90) days
following the commencement of any fiscal year in question or any other
designated fiscal period or period of service (or such other time as may be
required or permitted by Section 162(m) of the Code), the Committee shall, in
writing, (i) designate one or more Section 162(m) Participants, (ii) select the
Performance Criteria applicable to the fiscal year or other designated fiscal
period or period of service, (iii) establish the various performance targets, in
terms of an objective formula or standard, and bonus amounts which may be earned
for such fiscal year or other designated fiscal period or period of service and
(iv) specify the relationship between the Performance Criteria and performance
targets and the amounts to be earned by each Section 162(m) Participant for such
fiscal year or other designated fiscal period or period of service. Following
the completion of each fiscal year or other designated fiscal period or period
of service, the Committee shall certify in writing whether the applicable
performance targets have been achieved for such fiscal year or other designated
fiscal period or period of service. In determining the amount earned by a
Section 162(m) Participant, the Committee shall have the right to reduce (but
not to increase) the amount payable at a given level of performance to take into
account additional factors that the Committee may deem relevant to the
assessment of individual or corporate performance for the fiscal year or other
designated fiscal period or period of service.
 
                                       14
<PAGE>
                                  ARTICLE VIII
                           STOCK APPRECIATION RIGHTS
 
    8.1  GRANT OF STOCK APPRECIATION RIGHTS.  A Stock Appreciation Right may be
granted to any key Employee or consultant selected by the Committee. A Stock
Appreciation Right may be granted (i) in connection and simultaneously with the
grant of an Option, (ii) with respect to a previously granted Option, or (iii)
independent of an Option. A Stock Appreciation Right shall be subject to such
terms and conditions not inconsistent with the Plan as the Committee shall
impose and shall be evidenced by an Award Agreement. The Committee, in its
discretion, may determine whether a Stock Appreciation Right is to qualify as
performance-based compensation as described in Section 162(m)(4)(C) of the Code
and Award Agreements evidencing Stock Appreciation Rights intended to so qualify
shall contain such terms and conditions as may be necessary to meet the
applicable provisions of Section 162(m) of the Code.
 
    8.2  COUPLED STOCK APPRECIATION RIGHTS
 
    (a) A Coupled Stock Appreciation Right ("CSAR") shall be related to a
particular Option and shall be exercisable only when and to the extent the
related Option is exercisable.
 
    (b) A CSAR may be granted to the Grantee for no more than the number of
shares subject to the simultaneously or previously granted Option to which it is
coupled.
 
    (c) A CSAR shall entitle the Grantee (or other person entitled to exercise
the Option pursuant to the Plan) to surrender to the Company unexercised a
portion of the Option to which the CSAR relates (to the extent then exercisable
pursuant to its terms) and to receive from the Company in exchange therefor an
amount determined by multiplying the difference obtained by subtracting the
Option exercise price from the Fair Market Value of a share of Common Stock on
the date of exercise of the CSAR by the number of shares of Common Stock with
respect to which the CSAR shall have been exercised, subject to any limitations
the Committee may impose.
 
    8.3  INDEPENDENT STOCK APPRECIATION RIGHTS
 
    (a) An Independent Stock Appreciation Right ("ISAR") shall be unrelated to
any Option and shall have a term set by the Committee. An ISAR shall be
exercisable in such installments as the Committee may determine. An ISAR shall
cover such number of shares of Common Stock as the Committee may determine;
provided, however, that unless the Committee otherwise provides in the terms of
the ISAR or otherwise, no ISAR granted to a person subject to Section 16 of the
Exchange Act shall be exercisable until at least six months have elapsed from
(but excluding) the date on which the Option was granted. The exercise price per
share of Common Stock subject to each ISAR shall be set by the Committee. An
ISAR is exercisable only while the Grantee is an Employee or consultant;
provided that the Committee may determine that the ISAR may be exercised
subsequent to Termination of Employment or Termination of Consultancy without
cause, or following a Change in Control of the Company, or because of the
Grantee's retirement, death or disability, or otherwise.
 
    (b) An ISAR shall entitle the Grantee (or other person entitled to exercise
the ISAR pursuant to the Plan) to exercise all or a specified portion of the
ISAR (to the extent then exercisable pursuant to its terms) and to receive from
the Company an amount determined by multiplying the difference obtained by
subtracting the exercise price per share of the ISAR from the Fair Market Value
of a share of Common Stock on the date of exercise of the ISAR by the number of
shares of Common Stock with respect to which the ISAR shall have been exercised,
subject to any limitations the Committee may impose.
 
    8.4  PAYMENT AND LIMITATIONS ON EXERCISE
 
    (a) Payment of the amount determined under Section 8.2(c) and 8.3(b) above
shall be in cash, in Common Stock (based on its Fair Market Value as of the date
the Stock Appreciation Right is exercised) or a combination of both, as
determined by the Committee. To the extent such payment is effected in Common
Stock it shall be made subject to satisfaction of all provisions of Section 5.3
above pertaining to Options.
 
    (b) Grantees of Stock Appreciation Rights may be required to comply with any
timing or other restrictions with respect to the settlement or exercise of a
Stock Appreciation Right, including a window-period limitation, as may be
imposed in the discretion of the Board or Committee.
 
                                       15
<PAGE>
                                   ARTICLE IX
                                 ADMINISTRATION
 
    9.1  COMMITTEE.  The Human Resources Committee (or another committee or a
subcommittee of the Board assuming the functions of the Committee under the
Plan) shall consist solely of two or more Independent Directors appointed by and
holding office at the pleasure of the Board, each of whom is both a
"non-employee director" as defined by Rule 16b-3 and an "outside director" for
purposes of Section 162(m) of the Code. Appointment of Committee members shall
be effective upon acceptance of appointment. Committee members may resign at any
time by delivering written notice to the Board. Vacancies in the Committee may
be filled by the Board.
 
    9.2  DUTIES AND POWERS OF COMMITTEE.  It shall be the duty of the Committee
to conduct the general administration of the Plan in accordance with its
provisions. The Committee shall have the power to interpret the Plan and the
agreements pursuant to which Awards are granted or awarded, and to adopt such
rules for the administration, interpretation, and application of the Plan as are
consistent therewith and to interpret, amend or revoke any such rules.
Notwithstanding the foregoing, the full Board, acting by a majority of its
members in office, shall conduct the general administration of the Plan with
respect to Awards granted to Independent Directors. Any such grant or award
under the Plan need not be the same with respect to each Holder. Any such
interpretations and rules with respect to Incentive Stock Options shall be
consistent with the provisions of Section 422 of the Code. In its absolute
discretion, the Board may at any time and from time to time exercise any and all
rights and duties of the Committee under the Plan except with respect to matters
which under Rule 16b-3 or Section 162(m) of the Code, or any regulations or
rules issued thereunder, are required to be determined in the sole discretion of
the Committee.
 
    9.3  MAJORITY RULE; UNANIMOUS WRITTEN CONSENT.  The Committee shall act by a
majority of its members in attendance at a meeting at which a quorum is present
or by a memorandum or other written instrument signed by all members of the
Committee.
 
    9.4  COMPENSATION; PROFESSIONAL ASSISTANCE; GOOD FAITH ACTIONS.  Members of
the Committee shall receive such compensation, if any, for their services as
members as may be determined by the Board. All expenses and liabilities which
members of the Committee incur in connection with the administration of the Plan
shall be borne by the Company. The Committee may, with the approval of the
Board, employ attorneys, consultants, accountants, appraisers, brokers, or other
persons. The Committee, the Company and the Company's officers and Directors
shall be entitled to rely upon the advice, opinions or valuations of any such
persons. All actions taken and all interpretations and determinations made by
the Committee or the Board in good faith shall be final and binding upon all
Holders, the Company and all other interested persons. No members of the
Committee or Board shall be personally liable for any action, determination or
interpretation made in good faith with respect to the Plan or Awards, and all
members of the Committee and the Board shall be fully protected by the Company
in respect of any such action, determination or interpretation.
 
                                   ARTICLE X
                            MISCELLANEOUS PROVISIONS
 
    10.1  NON-TRANSFERABILITY.  No Award under the Plan may be sold, pledged,
assigned or transferred in any manner other than by will or the laws of descent
and distribution or pursuant to a QDRO unless and until such Award has been
exercised, or the shares underlying such Award have been issued, and all
restrictions applicable to such shares have lapsed. However, the Committee (or
the Board in the case of Awards granted to Independent Directors) may in its
discretion, permit a Holder to transfer an Award to a Permitted Transferee
subject to the following terms and conditions:
 
                                       16
<PAGE>
    (a) An Award transferred to a Permitted Transferee shall not be assignable
or transferable by the Permitted Transferee other than by will or the laws of
descent and distribution.
 
    (b) Any Award which is transferred to a Permitted Transferee shall continue
to be subject to all the terms and conditions of the Award as applicable to the
original holder (other than the ability to further transfer the Award).
 
    (c) The Holder and the Permitted Transferee shall execute any and all
documents reasonably requested by the Committee, including without limitation
documents to (i) confirm the status of the transferee as a Permitted Transferee,
(ii) satisfy any requirements for an exemption for the transfer under applicable
federal and state securities laws and (iii) evidence the transfer.
 
    (d) Shares of Common Stock acquired by a Permitted Transferee through
exercise of an Option have not been registered under the Securities Act or any
state securities act and may not be transferred, nor will any assignee or
transferee thereof be recognized as an owner of such shares of Common Stock for
any purpose, unless a registration statement under the Securities Act and any
applicable state securities act with respect to such shares shall then be in
effect or unless the availability of an exemption from registration with respect
to any proposed transfer or disposition of such shares shall be established to
the satisfaction of counsel for the Company.
 
    No Award or interest or right therein shall be liable for the debts,
contracts or engagements of the Holder or his successors in interest or shall be
subject to disposition by transfer, alienation, anticipation, pledge,
encumbrance, assignment or any other means whether such disposition be voluntary
or involuntary or by operation of law by judgment, levy, attachment, garnishment
or any other legal or equitable proceedings (including bankruptcy), and any
attempted disposition thereof shall be null and void and of no effect, except to
the extent that such disposition is permitted by the preceding provisions of
this Section 10.1.
 
    10.2  AMENDMENT, SUSPENSION OR TERMINATION OF THE PLAN.  Except as otherwise
provided in this Section 10.2, the Plan may be wholly or partially amended or
otherwise modified, suspended or terminated at any time or from time to time by
the Board or the Committee. However, without approval of the Company's
stockholders given within twelve months before or after the action by the Board
or the Committee, no action of the Board or the Committee may, except as
provided in Section 10.3, increase the limits imposed in Section 2.1 on the
maximum number of shares which may be issued under the Plan. No amendment,
suspension or termination of the Plan shall, without the consent of the Holder
alter or impair any rights or obligations under any Award theretofore granted or
awarded, unless the Award itself otherwise expressly so provides. No Awards may
be granted or awarded during any period of suspension or after termination of
the Plan, and in no event may any Incentive Stock Option be granted under the
Plan after the first to occur of the following events: (i) the expiration of ten
years from the date the Plan is adopted by the Board or (ii) the expiration of
ten years from the date the Plan is approved by the Company's stockholders under
Section 10.4. In addition, if the Board determines that Awards other than
Options or Stock Appreciation Rights which may be granted to Section 162(m)
Participants should continue to be eligible to qualify as performance-based
compensation under Section 162(m)(4)(C) of the Code, the Performance Criteria
must be disclosed to and reapproved by the Company's stockholders no later than
the first stockholder meeting that occurs in the fifth year following the year
in which the Company's stockholders previously approved the Performance
Criteria.
 
    10.3  CHANGES IN COMMON STOCK OR ASSETS OF THE COMPANY, ACQUISITION OR
LIQUIDATION OF THE COMPANY AND OTHER CORPORATE EVENTS.
 
    (a) Subject to Section 10.3(d), in the event that the Committee (or the
Board, in the case of Awards granted to Independent Directors) determines that
any dividend or other distribution (whether in the form of cash, Common Stock,
other securities, or other property), recapitalization, reclassification, stock
split, reverse stock split, reorganization, merger, consolidation, split-up,
spin-off, combination, repurchase,
 
                                       17
<PAGE>
liquidation, dissolution, or sale, transfer, exchange or other disposition of
all or substantially all of the assets of the Company (including, but not
limited to, a Corporate Transaction), or exchange of Common Stock or other
securities of the Company, issuance of warrants or other rights to purchase
Common Stock or other securities of the Company, or other similar corporate
transaction or event, in the Committee's sole discretion (or in the case of
Awards granted to Independent Directors, the Board's sole discretion), affects
the Common Stock such that an adjustment is determined by the Committee to be
appropriate in order to prevent dilution or enlargement of the benefits or
potential benefits intended to be made available under the Plan or with respect
to an Award, then the Committee (or the Board, in the case of Awards granted to
Independent Directors) shall, in such manner as it may deem equitable, adjust
any or all of
 
        (i) the number and kind of shares of Common Stock (or other securities
    or property) with respect to which Awards may be granted or awarded
    (including, but not limited to, adjustments of the limitations in Section
    2.1 on the maximum number and kind of shares which may be issued and
    adjustments of the Award Limit),
 
        (ii) the number and kind of shares of Common Stock (or other securities
    or property) subject to outstanding Options, Performance Awards, Stock
    Appreciation Rights, Dividend Equivalents, or Stock Payments, and in the
    number and kind of shares of outstanding Restricted Stock or Deferred Stock,
    and
 
       (iii) the grant or exercise price with respect to any Award.
 
    (b) Subject to Section 10.3(d), in the event of any Corporate Transaction or
other transaction or event described in Section 10.3(a) or any unusual or
nonrecurring transactions or events affecting the Company, any affiliate of the
Company, or the financial statements of the Company or any affiliate, or of
changes in applicable laws, regulations, or accounting principles, the Committee
(or the Board, in the case of Awards granted to Independent Directors) in its
discretion is hereby authorized to take any one or more of the following actions
whenever the Committee (or the Board, in the case of Awards granted to
Independent Directors) determines that such action is appropriate in order to
prevent dilution or enlargement of the benefits or potential benefits intended
to be made available under the Plan or with respect to any option, right or
other award under the Plan, to facilitate such transactions or events or to give
effect to such changes in laws, regulations or principles:
 
        (i) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may provide, either by the terms
    of the agreement or by action taken prior to the occurrence of such
    transaction or event and either automatically or upon the Holder's request,
    for either the purchase of any such Award for an amount of cash equal to the
    amount that could have been attained upon the exercise of such Award or
    realization of the Holder's rights had such Award been currently exercisable
    or payable or fully vested or the replacement of such Award with other
    rights or property selected by the Committee (or the Board, in the case of
    Awards granted to Independent Directors) in its sole discretion;
 
        (ii) In its sole and absolute discretion, the Committee (or the Board,
    in the case of Awards granted to Independent Directors) may provide, either
    by the terms of such Award or by action taken prior to the occurrence of
    such transaction or event that it cannot vest, be exercised or become
    payable after such event;
 
       (iii) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may provide, either by the terms
    of such Award or by action taken prior to the occurrence of such transaction
    or event, that for a specified period of time prior to such transaction or
    event, such Award shall be
 
                                       18
<PAGE>
    exercisable as to all shares covered thereby, notwithstanding anything to
    the contrary in (i) Section 4.4 or (ii) the provisions of such Award;
 
        (iv) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may provide, either by the terms
    of such Award or by action taken prior to the occurrence of such transaction
    or event, that upon such event, such Award be assumed by the successor or
    survivor corporation, or a parent or subsidiary thereof, or shall be
    substituted for by similar options, rights or awards covering the stock of
    the successor or survivor corporation, or a parent or subsidiary thereof,
    with appropriate adjustments as to the number and kind of shares and prices;
    and
 
        (v) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee (or the Board, in the case
    of Awards granted to Independent Directors) may make adjustments in the
    number and type of shares of Common Stock (or other securities or property)
    subject to outstanding Awards, and in the number and kind of outstanding
    Restricted Stock or Deferred Stock and/or in the terms and conditions of
    (including the grant or exercise price), and the criteria included in,
    outstanding options, rights and awards and options, rights and awards which
    may be granted in the future.
 
        (vi) In its sole and absolute discretion, and on such terms and
    conditions as it deems appropriate, the Committee may provide either by the
    terms of a Restricted Stock award or Deferred Stock award or by action taken
    prior to the occurrence of such event that, for a specified period of time
    prior to such event, the restrictions imposed under an Award Agreement upon
    some or all shares of Restricted Stock or Deferred Stock may be terminated,
    and, in the case of Restricted Stock, some or all shares of such Restricted
    Stock may cease to be subject to repurchase under Section 6.5 or forfeiture
    under Section 6.4 after such event.
 
       (vii) Notwithstanding any other provision of the Plan, in the event of
    Change in Control, each outstanding Award shall, immediately prior to the
    effective date of the Change in Control, automatically become fully
    exercisable for all of the shares of Common Stock at the time subject to
    such rights and may be exercised for any or all of those shares as
    fully-vested shares of Common Stock.
 
    (c) Subject to Section 10.3(d) and 10.8, the Committee (or the Board, in the
case of Awards granted to Independent Directors) may, in its discretion, include
such further provisions and limitations in any Award, agreement or certificate,
as it may deem equitable and in the best interests of the Company.
 
    (d) With respect to Awards described in Article VI or VII which are granted
to Section 162(m) Participants and are intended to qualify as performance-based
compensation under Section 162(m)(4)(C), no adjustment or action described in
this Section 10.3 or in any other provision of the Plan shall be authorized to
the extent that such adjustment or action would cause the Plan to violate
Section 422(b)(1) of the Code or would cause such Award to fail to so qualify
under Section 162(m)(4)(C), as the case may be, or any successor provisions
thereto. Furthermore, no such adjustment or action shall be authorized to the
extent such adjustment or action would result in short-swing profits liability
under Section 16 or violate the exemptive conditions of Rule 16b-3 unless the
Committee (or the Board, in the case of Awards granted to Independent Directors)
determines that the option or other award is not to comply with such exemptive
conditions. The number of shares of Common Stock subject to any Award shall
always be rounded to the next whole number.
 
    10.4  APPROVAL OF PLAN BY STOCKHOLDERS.  The Plan will be submitted for the
approval of the Company's stockholders within twelve months after the date of
the Board's initial adoption of the Plan. Awards may be granted or awarded prior
to such stockholder approval, provided that such Awards shall not be exercisable
or shall not vest prior to the time when the Plan is approved by the
stockholders, and provided further that if such approval has not been obtained
at the end of said twelve-month period, all Awards previously granted or awarded
under the Plan shall thereupon be canceled and become null and void.
 
                                       19
<PAGE>
    10.5  TAX WITHHOLDING.  The Company shall be entitled to require payment in
cash or deduction from other compensation payable to each Holder of any sums
required by federal, state or local tax law to be withheld with respect to the
issuance, vesting, exercise or payment of any Award. The Committee (or the
Board, in the case of Awards granted to Independent Directors) may in its
discretion and in satisfaction of the foregoing requirement allow such Holder to
elect to have the Company withhold shares of Common Stock otherwise issuable
under such Award (or allow the return of shares of Common Stock) having a Fair
Market Value equal to the sums required to be withheld.
 
    10.6  LOANS.  The Committee may, in its discretion, extend one or more loans
to key Employees in connection with the exercise or receipt of an Award granted
or awarded under the Plan, or the issuance of Restricted Stock or Deferred Stock
awarded under the Plan. The terms and conditions of any such loan shall be set
by the Committee.
 
    10.7  FORFEITURE PROVISIONS.  Pursuant to its general authority to determine
the terms and conditions applicable to Awards under the Plan, the Committee (or
the Board, in the case of Awards granted to Independent Directors) shall have
the right (to the extent consistent with the applicable exemptive conditions of
Rule 16b-3) to provide, in the terms of Awards made under the Plan, or to
require a Holder to agree by separate written instrument, that (i) any proceeds,
gains or other economic benefit actually or constructively received by the
Holder upon any receipt or exercise of the Award, or upon the receipt or resale
of any Common Stock underlying the Award, must be paid to the Company, and (ii)
the Award shall terminate and any unexercised portion of the Award (whether or
not vested) shall be forfeited, if (a) a Termination of Employment, Termination
of Consultancy or Termination of Directorship occurs prior to a specified date,
or within a specified time period following receipt or exercise of the Award, or
(b) the Holder at any time, or during a specified time period, engages in any
activity in competition with the Company, or which is inimical, contrary or
harmful to the interests of the Company, as further defined by the Committee (or
the Board, as applicable) or the Holder incurs a Termination of Employment,
Termination of Consultancy or Termination of Directorship for cause.
 
    10.8  LIMITATIONS APPLICABLE TO SECTION 16 PERSONS AND PERFORMANCE-BASED
COMPENSATION.  Notwithstanding any other provision of the Plan, the Plan, and
any Award granted or awarded to any individual who is then subject to Section 16
of the Exchange Act, shall be subject to any additional limitations set forth in
any applicable exemptive rule under Section 16 of the Exchange Act (including
any amendment to Rule 16b-3 of the Exchange Act) that are requirements for the
application of such exemptive rule. To the extent permitted by applicable law,
the Plan and Awards granted or awarded hereunder shall be deemed amended to the
extent necessary to conform to such applicable exemptive rule. Furthermore,
notwithstanding any other provision of the Plan or any Award described in
Article VI or VII which is granted to a Section 162(m) Participant and is
intended to qualify as performance-based compensation as described in Section
162(m)(4)(C) of the Code shall be subject to any additional limitations set
forth in Section 162(m) of the Code (including any amendment to Section 162(m)
of the Code) or any regulations or rulings issued thereunder that are
requirements for qualification as performance-based compensation as described in
Section 162(m)(4)(C) of the Code, and the Plan shall be deemed amended to the
extent necessary to conform to such requirements.
 
    10.9  AT-WILL EMPLOYMENT.  Nothing in the Plan or in any Award or agreement
hereunder shall confer upon any Holder any right to continue in the employ of,
or as a consultant for, the Company or any Subsidiary, or as a director of the
Company, or shall interfere with or restrict in any way the rights of the
Company and any Subsidiary, which are hereby expressly reserved, to discharge
any Holder at any time for any reason whatsoever, with or without good cause,
except to the extent expressly provided otherwise in a written employment
agreement between the Holder and the Company and any Subsidiary.
 
    10.10  EFFECT OF PLAN UPON OPTIONS AND COMPENSATION PLANS.  The adoption of
the Plan shall not affect any other compensation or incentive plans in effect
for the Company or any Subsidiary. Nothing in the Plan shall be construed to
limit the right of the Company (i) to establish any other forms of incentives
 
                                       20
<PAGE>
or compensation for Employees, Directors or Consultants of the Company or any
Subsidiary or (ii) to grant or assume options or other rights or awards
otherwise than under the Plan in connection with any proper corporate purpose
including but not by way of limitation, the grant or assumption of options in
connection with the acquisition by purchase, lease, merger, consolidation or
otherwise, of the business, stock or assets of any corporation, partnership,
limited liability company, firm or association.
 
    10.11  COMPLIANCE WITH LAWS.  The Plan, the granting and vesting of Awards
under the Plan and the issuance and delivery of shares of Common Stock and the
payment of money under the Plan or under Awards granted or awarded hereunder are
subject to compliance with all applicable federal and state laws, rules and
regulations (including but not limited to state and federal securities law and
federal margin requirements) and to such approvals by any listing, regulatory or
governmental authority as may, in the opinion of counsel for the Company, be
necessary or advisable in connection therewith. Any securities delivered under
the Plan shall be subject to such restrictions, and the person acquiring such
securities shall, if requested by the Company, provide such assurances and
representations to the Company as the Company may deem necessary or desirable to
assure compliance with all applicable legal requirements. To the extent
permitted by applicable law, the Plan and Awards granted or awarded hereunder
shall be deemed amended to the extent necessary to conform to such laws, rules
and regulations.
 
    10.12  TITLES.  Titles are provided herein for convenience only and are not
to serve as a basis for interpretation or construction of the Plan.
 
    10.13  GOVERNING LAW.  The Plan and any agreements hereunder shall be
administered, interpreted and enforced under the internal laws of the State of
Delaware without regard to conflicts of laws thereof.
 
                                     * * *
 
    I hereby certify that the foregoing Plan was duly adopted by the Board of
Directors of Parent Holding Corp. (to be renamed Promus Hotel Corporation) on
              , 1997.
 
    Executed on this     day of               , 1997.
 
                                          --------------------------------------
 
                                                        Secretary
 
                                       21

<PAGE>
                                                                    EXHIBIT 21.1
 
                         SUBSIDIARIES OF THE REGISTRANT
 
SUBSIDIARIES OF PARENT HOLDING CORP.
 
<TABLE>
<C>        <S>
       1.  Doubletree Corporation, a Delaware corporation
       2.  Promus Hotel Corporation, a Delaware corporation
       3.  Ziwa Insurance, Inc., a Vermont corporation
           (Wholly-Owned Insurance Company)
       4.  Promus Hotels, Inc., a Delaware corporation
       5.  Buckleigh, Inc., a Delaware corporation
       6.  Compass, Inc., a Tennessee corporation
       7.  EJP Corporation, a Delaware corporation
       8.  Suite Life, Inc., a Delaware corporation
       9.  Embassy Development Corporation, a Delaware corporation
      10.  Embassy Equity Development Corp., a Delaware corporation
      11.  Embassy Syracuse Development Corporation, a Delaware corporation
      12.  Southfield Hotel Management, Inc., a Florida corporation
      13.  Embassy Memphis Corporation, a Tennessee corporation
      14.  Embassy Pacific Equity Corporation, a Delaware corporation
      15.  Embassy Suites Club No. 1, Inc., a Kansas corporation
      16.  Embassy Suites Club No. Two, Inc., a Texas corporation
      17.  Embassy Suites Club No. Three, Inc., a Louisiana corporation
      18.  Embassy Suites (Isla Verde), Inc., a Delaware corporation
      19.  Embassy Suites (Puerto Rico), Inc., a Delaware corporation
      20.  Embassy Vacation Resorts, Inc., a Delaware corporation
      21.  EPAM Corporation, a Delaware corporation
      22.  ESI Mortgage Development Corporation, a Delaware corporation
      23.  ESI Mortgage Development Corporation II, a Delaware corporation
      24.  Hampton Inns, Inc., a Delaware corporation
      25.  GOL (Texas), Inc., a Texas corporation
      26.  Old Town Hotel Corporation, a Delaware corporation
      27.  Pacific Hotels, Inc., a Tennessee corporation
      28.  ATM Hotels Pty Limited, an Australia corporation
      29.  Promus Hotel Services, Inc., a Delaware corporation
      30.  Promus Hotels Florida, Inc., a Delaware corporation
      31.  Promus Hotels Minneapolis, Inc., a Delaware corporation
      32.  Samantha Hotel Corporation, a Delaware corporation
      33.  RFS, Inc., a Tennessee corporation
      34.  Doubletree Partners, a Delaware general partnership
      35.  Doubletree Hotels Corporation, an Arizona corporation
      36.  Doubletree of Phoenix, Inc., a Delaware corporation
      37.  INNCO Corporation, an Arizona corporation
      38.  HOSCO Corporation, an Arizona corporation
      39.  DT Management, Inc., an Arizona corporation
      40.  DT Real Estate, Inc., an Arizona corporation
      41.  Doubletree Hotel Systems, Inc., an Arizona corporation
      42.  Harbor Hotels Corporation, a Delaware corporation
      43.  DTM Burlingame, Inc., an Arizona corporation
      44.  Red Lion Hotels, Inc., a Delaware corporation
</TABLE>

<PAGE>
                                                                    EXHIBIT 23.1
 
                        CONSENT OF INDEPENDENT AUDITORS
 
    We consent to the use of our report incorporated herein by reference and to
the reference to our firm under the caption "Experts" in the Registration
Statement on Form S-4 and related Prospectus of Parent Holding Corp. dated
October 2, 1997.
 
                                          KPMG PEAT MARWICK LLP
 
Phoenix, Arizona
November 12, 1997

<PAGE>
                                                                    EXHIBIT 23.2
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
    As independent public accountants, we hereby consent to the incorporation by
reference in this Registration Statement on Form S-4, of our report dated
February 5, 1997 included (or incorporated by reference) in Promus Hotel
Corporation's Form 10-K for the year ended December 31, 1996, and to all
references to our Firm included in this Registration Statement.
 
                                          ARTHUR ANDERSEN LLP
 
Memphis, Tennessee
November 12, 1997

<PAGE>
                                                                    EXHIBIT 23.3
 
                         INDEPENDENT AUDITORS' CONSENT
 
    We consent to the use in this Registration Statement dated on or about
November 14, 1997 of Parent Holding Corp. on Form S-4 of our reports dated
February 24, 1996, on Red Lion Hotels, Inc. as of and for the ten months ended
December 31, 1995 and on Red Lion, a California Limited Partnership (Historical
Red Lion), for the seven months ended July 31, 1995, incorporated by reference
in the Prospectus which is part of this Registration Statement, and to the
reference to us under the heading "Experts" in the Prospectus.
 
DELOITTE & TOUCHE LLP
 
Portland, Oregon
November 12, 1997

<PAGE>
                                                                    EXHIBIT 23.4
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
    As independent public accountants, we hereby consent to the incorporation by
reference in this Registration Statement on Form S-4, of our report dated
February 7, 1995 on the consolidated financial statements of Red Lion, a
California Limited Partnership, as of and for the two years ended December 31,
1994, included in Doubletree Corporation's Form 8-K dated November 15, 1996, and
to all references to our Firm included in this Registration Statement.
 
                                          ARTHUR ANDERSEN LLP
 
Portland, Oregon
November 12, 1997

<PAGE>
                                                                    EXHIBIT 23.5
 
                  CONSENT OF MORGAN STANLEY & CO. INCORPORATED
 
    We hereby consent to the inclusion in the Registration Statement of Parent
Holding Corp. ("Parent"), relating to the proposed merger of (i) Doubletree
Corporation ("Doubletree") with an into a wholly-owned subsidiary of Parent and
(ii) Promus Hotel Corporation with an into another wholly-owned subsidiary of
Parent, of our opinion letter in the Joint Proxy Statement/Prospectus which is a
part of the Registration Statement, and to the references of our firm name
therein. In giving such consent, we do not thereby admit that we come within the
category of persons whose consent is required under Section 7 of the Securities
Act of 1933, as amended, or the rules and regulations adopted by the Securities
and Exchange Commission thereunder nor do we admit that we are experts with
respect to any part of such Registration Statement within the meaning of the
term "experts" as used in the Securities Act of 1933, as amended, or the rules
and regulations of the Securities and Exchange Commission thereunder.
 
                                          Very truly yours,
 
                                          MORGAN STANLEY & CO. INCORPORATED
 
                                          By:/s/ MAHMOUD A. MAMDANI
                                             -----------------------------------
                                               Mahmoud A. Mamdani
 
New York, New York
 
November 13, 1997

<PAGE>
                                                                    EXHIBIT 23.6
 
                            CONSENT OF BT WOLFENSOHN
 
    We hereby consent to the inclusion in the Registration Statement on Form S-4
of Parent Holding Corp., relating to the proposed merger involving Doubletree
Corporation and Promus Hotel Corporation, of our opinion letter appearing as
Annex C to the Joint Proxy Statement/Prospectus which is part of the
Registration Statement on Form S-4, and to the use of our name under the
captions "Summary--Opinions of Financial Advisors," "The Merger--Background of
the Merger," "The Merger--Recommendations of the Boards of Directors of
Doubletree and Promus; Reasons for the Merger," and "The Merger--Opinion of
Financial Advisor to Promus" therein.
 
    In giving such consent, we do not thereby admit that we come within the
category of persons whose consent is required under Section 7 of the Securities
Act of 1933, as amended, or the rules adopted thereunder, nor do we admit that
we are "experts" with respect to any part of the Registration Statement on Form
S-4 within the meaning of the Securities Act of 1933, as amended, or the rules
adopted thereunder.
 
                                          BT WOLFENSOHN
 
New York, New York
November 13, 1997

<PAGE>
                                                                    EXHIBIT 99.1
 
                          CONSENT OF RICHARD J. FERRIS
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ RICHARD J. FERRIS
                                          --------------------------------------
                                          Richard J. Ferris

<PAGE>
                                                                    EXHIBIT 99.2
 
                         CONSENT OF PRISCILLA FLORENCE
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ PRISCILLA FLORENCE
                                          --------------------------------------
                                          Priscilla Florence

<PAGE>
                                                                    EXHIBIT 99.3
 
                            CONSENT OF DALE F. FREY
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ DALE F. FREY
                                          --------------------------------------
                                          Dale F. Frey

<PAGE>
                                                                    EXHIBIT 99.4
 
                        CONSENT OF MICHAEL W. MICHELSON
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ MICHAEL W. MICHELSON
                                          --------------------------------------
                                          Michael W. Michelson

<PAGE>
                                                                    EXHIBIT 99.5
 
                            CONSENT OF JOHN H. MYERS
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ JOHN H. MYERS
                                          --------------------------------------
                                          John H. Myers

<PAGE>
                                                                    EXHIBIT 99.6
 
                         CONSENT OF PETER V. UEBERROTH
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ PETER V. UEBERROTH
                                          --------------------------------------
                                          Peter V. Ueberroth

<PAGE>
                                                                    EXHIBIT 99.7
 
                         CONSENT OF CHRISTOPHER W. HART
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ CHRISTOPHER W. HART
                                          --------------------------------------
                                          Christopher W. Hart

<PAGE>
                                                                    EXHIBIT 99.8
 
                           CONSENT OF C. WARREN NEEL
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ C. WARREN NEEL
                                          --------------------------------------
                                          C. Warren Neel

<PAGE>
                                                                    EXHIBIT 99.9
 
                           CONSENT OF MICHAEL D. ROSE
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ MICHAEL D. ROSE
                                          --------------------------------------
                                          Michael D. Rose

<PAGE>
                                                                   EXHIBIT 99.10
 
                           CONSENT OF MICHAEL I. ROTH
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ MICHAEL I. ROTH
                                          --------------------------------------
                                          Michael I. Roth

<PAGE>
                                                                   EXHIBIT 99.11
 
                              CONSENT OF JAY STEIN
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ JAY STEIN
                                          --------------------------------------
                                          Jay Stein

<PAGE>
                                                                   EXHIBIT 99.12
 
                            CONSENT OF RONALD TERRY
 
    I hereby consent to the use of my name in the Registration Statement on Form
S-4 of Parent Holding Corp. and any amendment thereto, as the same appears
therein under the caption "The Combined Company--Directors and Executive
Officers" with respect to my becoming a director of New Promus.
 
November 12, 1997
 
                                          /s/ RONALD TERRY
                                          --------------------------------------
                                          Ronald Terry


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