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SC 13D, 1997-08-25
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934


                           DecisionOne Holdings Corp.
                                (Name of Issuer)

                     Common Stock, $.01 par value per share
                         (Title of Class of Securities)

                                   243458 10 0
                                 (CUSIP Number)


                             David P. Kreisler, Esq.
Hutchins, Wheeler & Dittmar, 101 Federal Street, Boston, MA 02110 (617) 951-6600
         (Name, Address and Telephone Number of Person Authorized to 
                      Receive Notices and Communications)

                                 August 7, 1997
             (Date of Event which Requires Filing of this Statement)


If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

* The remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).

<PAGE>
                                                     SCHEDULE 13D

CUSIP No. 243458 10 0

1.   NAME OF REPORTING PERSON - Thomas H. Lee Equity Fund III, L.P.

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - 04-3279871

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP             (a) [   ]
                                                                  (b) [X]


3.   SEC USE ONLY


4.   SOURCE OF FUNDS

     OO

5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(D) OR 2(E)                                                  [   ]


   6.CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

                                                7.    SOLE VOTING POWER
                                                            695,016
NUMBER OF
SHARES                                          8.    SHARED VOTING POWER
BENEFICIALLY                                                   0
OWNED BY
EACH                                            9.    SOLE DISPOSITIVE POWER
REPORTING                                                    695,016
PERSON WITH
                                               10.    SHARED DISPOSITIVE POWER
                                                               0


11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      695,016

12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES
                                                                 [   ]


13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     5.6%

14.  TYPE OF REPORTING PERSON

     PN

<PAGE>
                                                     SCHEDULE 13D

CUSIP No. 243458 10 0

1.   NAME OF REPORTING PERSON - Thomas H. Lee Foreign Fund III, L.P.

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - 04-3303055

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP      (a) [   ]
                                                           (b) [X]


3.   SEC USE ONLY


4.   SOURCE OF FUNDS

     OO

5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(D) OR 2(E)                                              [   ]


   6.CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

                                              7.    SOLE VOTING POWER
                                                         43,006
NUMBER OF
SHARES                                        8.    SHARED VOTING POWER
BENEFICIALLY                                              0
OWNED BY
EACH                                          9.    SOLE DISPOSITIVE POWER
REPORTING                                                43,006
PERSON WITH
                                             10.    SHARED DISPOSITIVE POWER
                                                          0


11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      43,006

12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES
                                                       [   ]


13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     0.3%

14.  TYPE OF REPORTING PERSON

     PN
<PAGE>
                                                     SCHEDULE 13D

CUSIP No. 243458 10 0

1.   NAME OF REPORTING PERSON - Thomas H. Lee Equity Advisors III Limited 
     Partnership

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - 04-3279882

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP          (a) [   ]
                                                               (b) [X]


3.   SEC USE ONLY


4.   SOURCE OF FUNDS

     N/A

5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(D) OR 2(E)                                               [   ]


   6.CITIZENSHIP OR PLACE OF ORGANIZATION

     Massachusetts

                                             7.    SOLE VOTING POWER
                                                          0
NUMBER OF
SHARES                                       8.    SHARED VOTING POWER
BENEFICIALLY                                           738,022
OWNED BY
EACH                                         9.    SOLE DISPOSITIVE POWER
REPORTING                                                 0
PERSON WITH
                                            10.    SHARED DISPOSITIVE POWER
                                                        738,022


11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     738,022

12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES
                                                            [   ]


13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     6.0%

14.  TYPE OF REPORTING PERSON

     PN
<PAGE>
                                                     SCHEDULE 13D

CUSIP No. 243458 10 0

1.   NAME OF REPORTING PERSON - THL Equity Trust III

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - 04-3279892

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP       (a) [   ]
                                                            (b) [X]


3.   SEC USE ONLY


4.   SOURCE OF FUNDS

     N/A

5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(D) OR 2(E)                                               [   ]


   6.CITIZENSHIP OR PLACE OF ORGANIZATION

     Massachusetts

                                               7.    SOLE VOTING POWER
                                                           0
NUMBER OF
SHARES                                         8.    SHARED VOTING POWER
BENEFICIALLY                                             738,022
OWNED BY
EACH                                           9.    SOLE DISPOSITIVE POWER
REPORTING                                                   0
PERSON WITH
                                              10.    SHARED DISPOSITIVE POWER
                                                          738,022


11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     738,022

12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES
                                                              [   ]


13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     6.0%

14.  TYPE OF REPORTING PERSON

     OO


<PAGE>
                                                     SCHEDULE 13D

CUSIP No. 243458 10 0

1.   NAME OF REPORTING PERSON - THL Co-Investors III-A, LLC

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - 04-3361519

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP        (a) [   ]
                                                             (b) [X]


3.   SEC USE ONLY


4.   SOURCE OF FUNDS

     OO

5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(D) OR 2(E)                                             [   ]


   6.CITIZENSHIP OR PLACE OF ORGANIZATION

     Massachusetts

                                                7.    SOLE VOTING POWER
                                                           43,910
NUMBER OF
SHARES                                          8.    SHARED VOTING POWER
BENEFICIALLY                                                0
OWNED BY
EACH                                            9.    SOLE DISPOSITIVE POWER
REPORTING                                                   43,910
PERSON WITH
                                               10.    SHARED DISPOSITIVE POWER
                                                           0


11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     43,910

12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES
                                                           [   ]


13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     0.4%

14.  TYPE OF REPORTING PERSON

     CO

<PAGE>
                                                     SCHEDULE 13D

CUSIP No. 243458 10 0

1.   NAME OF REPORTING PERSON - THL Co-Investors III-B, LLC

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - 04-3361521

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP         (a) [   ]
                                                              (b) [X]

3.   SEC USE ONLY


4.   SOURCE OF FUNDS

     OO

5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(D) OR 2(E)                                             [   ]


   6.CITIZENSHIP OR PLACE OF ORGANIZATION

     Massachusetts

                                              7.    SOLE VOTING POWER
                                                        28,185
NUMBER OF
SHARES                                        8.    SHARED VOTING POWER
BENEFICIALLY                                              0
OWNED BY
EACH                                          9.    SOLE DISPOSITIVE POWER
REPORTING                                               28,185
PERSON WITH
                                             10.    SHARED DISPOSITIVE POWER
                                                          0


11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     28,185

12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES
                                                               [   ]


13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     0.2%

14.  TYPE OF REPORTING PERSON

     CO

<PAGE>
                                                     SCHEDULE 13D

         Item 1.  Security and Issuer

         The class of equity  securities to which this statement  relates is the
common stock,  $0.01 par value per share (the "Shares") of DecisionOne  Holdings
Corp., a Delaware corporation  ("DecisionOne").  The principal executive offices
of DecisionOne are located at 50 East  Swedesford  Road,  Frazer,  Pennsylvania,
19355.

         Item 2.  Identity and Background.

(a) - (c) and (f)

         This  Schedule  13D is being filed  jointly on behalf of the  following
persons (collectively,  the "Reporting Persons"):  (1) Thomas H. Lee Equity Fund
III, L.P., a Delaware limited partnership ("Equity Fund III"), (2) Thomas H. Lee
Foreign Fund III, L.P., a Delaware limited partnership ("Foreign Fund III"), (3)
Thomas H. Lee Equity Advisors III Limited Partnership,  a Massachusetts  limited
partnership ("Advisors III"), (4) THL Equity Trust III, a Massachusetts business
trust ("Trust III"), (5) THL Co-Investors  III-A,  LLC, a Massachusetts  limited
liability corporation ("Investors III-A") and (6) THL Co-Investors III-B, LLC, a
Massachusetts limited liability corporation ("Investors III-B").

         The address of each of the Reporting Persons is c/o Thomas H. Lee 
Company, 75 State Street, Boston, Massachusetts  02109.

         Each of  Equity  Fund  III,  Foreign  Fund  III,  Investors  III-A  and
Investors  III-B are  principally  engaged  in the  business  of  investment  in
securities.  Advisors III is  principally  engaged in the business of serving as
general  partner  of  Equity  Fund  III  and  Foreign  Fund  III.  Trust  III is
principally  engaged in the  business of serving as general  partner of Advisors
III.

         Due to an existing  arrangement  between Equity Fund III,  Advisors III
and Trust  III,  each of Equity  Fund III,  Advisors  III and Trust III could be
deemed to be the  beneficial  owner of all Shares  beneficially  owned by Equity
Fund III. Advisors III and Trust III each disclaim beneficial  ownership of such
Shares.

         Due to an existing  arrangement  between Foreign Fund III, Advisors III
and Trust III,  each of Foreign  Fund III,  Advisors  III and Trust III could be
deemed to be the beneficial  owner of all Shares  beneficially  owned by Foreign
Fund III. Advisors III and Trust III each disclaim beneficial  ownership of such
Shares.

         Attached as Schedule A to this Schedule 13D is  information  concerning
the  Reporting  Persons  and  other  persons  and  entities  as  to  which  such
information  is  required  to be  disclosed  in  response  to Item 2 and General
Instruction C to Schedule 13D.

<PAGE>

(d) and (e)

         None of the Reporting  Persons or any of their officers or trustees has
been convicted in a criminal  proceeding  during the past five years  (excluding
traffic violations and similar misdemeanors).

         None of the Reporting  Persons or any of their officers or trustees has
been  party  to a civil  proceeding  of a  judicial  or  administrative  body of
competent jurisdiction during the past five years as a result of which it was or
is subject to a judgment,  decree or final order enjoining future violations of,
or prohibiting or mandating  activities  subject to, federal or state securities
laws or finding any violation with respect to such laws.

         Item 3.  Source and Amount of Funds or Other Consideration.

         Pursuant to the  Subscription  Agreement and the Merger Agreement (both
as defined  below in Item 4), the total  consideration  paid by Equity Fund III,
Foreign Fund III,  Investors IIIA and Investors  III-B  (collectively,  the "THL
Entities") in connection  with their  purchase of the Shares was  $16,694,380.25
The acquisition of the Shares is described below in Item 4.

         The THL Entities  obtained funds to make the purchase  described herein
through capital contributions from their investors.

         Item 4.  Purpose of Transactions.

         The THL Entities  entered  into the  Agreements  (as defined  below) to
purchase the Shares for general investment purposes. The THL Entities retain the
right to change their investment intent.  Subject to market conditions and other
factors,  the THL Entities may acquire or dispose of shares of DecisionOne  from
time to time in future open-market,  privately negotiated or other transactions,
may enter into  agreements  with  third  parties  relating  to  acquisitions  of
securities issued or to be issued by the Surviving  Corporation,  may enter into
agreements with the management of DecisionOne relating to acquisitions of shares
of the Surviving Corporation by members of management,  insurances of options to
management or their employment by the surviving corporation, or may effect other
similar agreements or transactions.

         Except as set forth herein, the Reporting Persons do not have any plans
or  proposals  which  would  relate  to or  result  in any  of the  transactions
described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.

         On May 4,  1997,  DecisionOne  and Quaker  Holding  Co.  ("Quaker"),  a
Delaware  corporation that, as of May 4, 1997, was wholly-owned by certain funds
affiliated with Donaldson,  Lufkin & Jenrette,  Inc.,  entered into an Agreement
and Plan of  Merger  (as  amended  on July 15,  1997,  the  "Merger  Agreement,"
attached  hereto as Exhibit  2).  The Merger  Agreement  provides,  among  other
things, for the merger of Quaker with and into DecisionOne

<PAGE>
(the "Merger"),  with  DecisionOne as the surviving  corporation (the "Surviving
Corporation").  The Merger  contemplates that approximately  94.7% of the issued
and  outstanding  Shares of  DecisionOne  will be  converted  into cash and that
approximately 5.3% of such Shares will be retained by existing stockholders. The
transactions   contemplated  by  the  Merger  Agreement  were  approved  by  the
stockholders  of DecisionOne  and were  consummated,  in each case, on August 7,
1997.  From and after the  Effective  Time (as  defined  below),  the  Surviving
Corporation will possess all the rights,  privileges,  powers and franchises and
be subject to all of the  restrictions,  disabilities  and duties of the Company
and Quaker, all as provided under Delaware Law.

         Pursuant to the terms of the Merger Agreement, on August 7, 1997 (the 
"Closing Date"), DecisionOne Holdings Corp. filed a Certificate of Merger with 
the Secretary of the State of Delaware, and the Merger was effective as of the 
filing of such certificate (the "Effective Time").  In connection therewith, 
immediately prior to the Effective Time, Quaker entered into a Subscription 
Agreement (the "Subscription Agreement") (attached hereto and made a part hereof
as Exhibit 3) with DLJ Merchant Banking Partners II, L.P., DLJ Merchant Banking 
Partners II-A, L.P., DLJ Offshore Partners, L.P., DLJ Diversified Partners, 
L.P., DLJ Diversified Partners-A, L.P., DLJ Millennium Partners, L.P., DLJ 
Millennium Partners-A, L.P., DLJMB Funding II, Inc., DLJ First ESC, L.L.C., DLJ 
EAB Partners, L.P., UK investment Plan 1997 Partners (collectively, the 
"DLJMB Funds"), Apollo Investment Fund III, L.P., Apollo Overseas Partners
III, L.P., Apollo (U.K.) Partners III, L.P. (collectively, "Apollo"), Bain 
Capital Fund V, L.P., Bain Capital Fund V-B, L.P., BCIP Trust Associates 
(collectively, "Bain"), the THL Entities, DLJ Capital Corporation ("DLJCC"), 
Sprout and Sprout CEO (collectively, "Sprout") and Ontario Teachers' Pension 
Plan Fund ("Teachers", and collectively with Apollo, Bain, THL and
Sprout, the "Institutional Investors"), dated August 7, 1997, pursuant to which 
the DLJMB Funds and the Institutional Investors purchased shares of Common 
Stock of Quaker on the Terms set forth in the Subscription Agreement.  Upon 
consummation of the Merger and the purchase of the Shares, the percentage 
ownership of the outstanding Shares is as follows:  (1) DLJMB Funds, 60.6%; 
(2) Apollo, 6.5%; (3) Bain 6.5%; (4) THL Entities 6.5%; (5) Sprout,
3.8%; and (6) Teachers, 4.0%.

         In addition,  DecisionOne, the DLJMB Funds, the Institutional Investors
and certain members of DecisionOne  management (the "Management  Shareholders"),
have  entered  into an  Investors'  Agreement  dated as of  August  7, 1997 (the
"Investors' Agreement") (attached hereto and made part hereof as Exhibit 4). The
Investors'  Agreement  together with the Merger  Agreement and the  Subscription
Agreement are sometimes referred to herein as the "Agreements."

         The  Investors'  Agreement  provides that subject to certain  ownership
levels,  the  Institutional  Investors  will have certain  corporate  governance
rights and that (i) the Board of Directors of  DecisionOne  will comprise  seven
members,  four of which will be nominated by the DLJMB Funds,  two of which will
be independent  directors  satisfactory to the DLJMB Funds and one of which will
be nominated by the Management Shareholders; and (ii) the Institutional
<PAGE>
Investors will have certain tag-along rights, drag-along rights and registration
rights with respect to the Shares (each as defined in the Investors' Agreement).
The  Investors'  Agreement  also  provides  certain  restrictions  regarding the
investment made by the Management  Shareholders as more fully described therein.
Further,  the Investors'  Agreement provides for certain  subscription rights in
the event DecisionOne proposes to issue equity securities.

         Each of the  Agreements is filed as an exhibit to this Schedule 13D and
is  incorporated  herein  by  reference.   The  foregoing  descriptions  of  the
Agreements are qualified in their entirety by reference to such exhibits.

         Item 5.  Interest in Securities of the Issuer.

         Equity  Fund  III  has  acquired   695,016   Shares   pursuant  to  the
Subscription Agreement and the Merger Agreement, representing approximately 5.6%
of the  outstanding  Shares as of August  8,  1997 (the  "Outstanding  Shares").
Equity Fund III has, subject to the Agreements, sole voting and sole dispositive
power with respect to such Shares.

         Foreign  Fund  III  has  acquired   43,066   Shares   pursuant  to  the
Subscription Agreement and the Merger Agreement, representing approximately 0.3%
of the Outstanding Shares. Foreign Fund III has, subject to the Agreements, sole
voting and sole dispositive power with respect to such Shares.

         Investors III-A has acquired 28,185 Shares pursuant to the Subscription
Agreement  and the  Merger  Agreement,  representing  approximately  0.4% of the
Outstanding Shares. Investors III-A has, subject to the Agreements,  sole voting
and sole dispositive power with respect to such Shares.

         Investors III-B has acquired 43,066 Shares pursuant to the Subscription
Agreement  and the  Merger  Agreement,  representing  approximately  0.3% of the
Outstanding Shares. Investors III-B has, subject to the Agreements,  sole voting
and sole dispositive power with respect to such Shares.

         Each of  Advisors  III and Trust  III may be  deemed,  pursuant  to the
attribution  rules of Rule 13d-3 of the Exchange Act, to be the beneficial owner
of 738,022 Shares,  representing  approximately 6.0% of the Outstanding  Shares.
Each of Advisors III and Trust III disclaim beneficial ownership of such Shares.

         The  statements  in this  Schedule  13D  shall not be  construed  as an
admission that a Reporting  Person is the beneficial  owner of any of the Shares
other than those  which such  Reporting  Person  has  acquired  pursuant  to the
Agreements.
<PAGE>
         In addition, by  virtue of the Agreements, each of the Reporting 
Persons may be deemed to share voting and dispositive power with respect to the 
Shares.  The Reporting Persons disclaim the existence of such shared power.

(c)      The responses to Items 3 and 4 of this Schedule 13D are incorporated 
herein.

(d)      Not applicable.

(e)      Not applicable.

         Item 6.  Contracts, Arrangements, Understandings or Relationships with 
Respect to Securities of the Issuer.

         The  responses  to  Items  3,  4,  and 5 of this  Schedule  13D and the
Exhibits to this Schedule 13D are incorporated herein by reference.

         Except for the  agreements  described in the response to Item 4, to the
best  of  knowledge  of  the   Reporting   Persons,   there  are  no  contracts,
arrangements,  understandings or relationships  (legal or otherwise) between the
persons  enumerated  in Item 2,  and  any  other  person,  with  respect  to any
securities of DecisionOne,  including, but not limited to, transfer or voting of
any  of  the  securities,   finder's  fees,  joint  ventures,   loan  or  option
arrangements,  put or calls,  guarantees of profits division of profits or less,
or the giving or withholding of proxies.

         Item 7.  Material to be Filed as Exhibits.

         Exhibit 1:        Joint filing agreement among the Reporting Persons

         Exhibit 2:        Agreement and Plan of Merger dated as of May 4, 199
                           between DecisionOne Holdings Corp. and Quaker 
                           Holding Co.

         Exhibit 3:        Subscription Agreement dated as of August 7, 1997 
                           among Quaker Holding Co. and the buyers named 
                           therein.

         Exhibit           4:  Investors'  Agreement  dated as of August 7, 1997
                           among  DecisionOne  Holdings Corp., the DLJ Funds and
                           certain other persons named therein.

<PAGE>
                                   Schedule A

         Each of the following  individuals is a United States  citizen,  and is
employed by the Thomas H. Lee Company, 75 State Street,  Boston,  Massachusetts,
02109.

THL Equity Trust

Officers:

Chairman                            Thomas H. Lee
                                    1 Old Farm Road, Lincoln, MA  01773

President                           David V. Harkins
                                    8 Corn Point Road, Marblehead, MA  01945

Vice Presidents                     C. Hunter Boll
                                    45 Fletcher Street, Winchester, MA  01890

                                    Thomas R. Shepherd
                                    172 Harvard Road, Stow, MA  01775

                                    Anthony J. DiNovi
                                    167 Commonwealth Avenue,#9, Boston, MA 02116

                                    Thomas M. Hagerty
                                    256 Beacon Street, Apt. #4, Boston, MA 02116

                                    Joseph J. Incandela
                                    139 Abbott Road, Wellesley Hills, MA  02181

                                    Scott A. Schoen
                                    65 Laurel Road, Weston, MA  02193

                                    Warren C. Smith, Jr.
                                    38 Coolidge Lane, Dedham, MA  02026

                                    Scott M. Sperling
                                    4 Moore Road, Wayland, MA  01778

                                    Seth W. Lawry
                                    330 Dartmouth Street, Apt.#7S, 
                                    Boston, MA  02116

<PAGE>



Treasurer                           Wendy L. Masler
                                    11 Waverly Street, #3, Brookline, MA  02115

Assistant Treasurer                 Andrew D. Flaster
                                    69 Wilshire Park, Needham, MA  02192

Clerk                               Wendy L. Masler
                                    11 Waverly Street, #3, Brookline, MA  02115

Assistant Clerks                    Charles W. Robins, Esq.
                                    50 Lehigh Road, Wellesley, MA  02181

                                    Jeffrey S. Wieand, Esq.
                                    1695 Lowell Road, Concord, MA  01742

Trustees:

         Thomas H. Lee           1 Old Farm Road, Lincoln, MA  01773
         David V. Harkins        8 Corn Point Road, Marblehead, MA  01945
         C. Hunter Boll          45 Fletcher Street, Winchester, MA  01890
         Thomas R. Shepherd      172 Harvard Road, Stow, MA  01775
         Anthony J. DiNovi       167 Commonwealth Avenue, #9, Boston, MA  02116
         Thomas M. Hagerty       256 Beacon Street, Apt. #4, Boston, MA  02116
         Warren C. Smith, Jr.    38 Coolidge Lane, Dedham, MA  02026
         Scott M. Sperling       4 Moore Road, Wayland, MA  01778


THL Co-Investors III-A, LLC

Officers:

Chairman                            Thomas H. Lee
                                    1 Old Farm Road, Lincoln, MA  01773

President                           David V. Harkins
                                    8 Corn Point Road, Marblehead, MA  01945

Vice Presidents                     C. Hunter Boll
                                    45 Fletcher Street, Winchester, MA  01890

                                    Thomas R. Shepherd
                                    172 Harvard Road, Stow, MA  01775


<PAGE>



                                    Anthony J. DiNovi
                                    167 Commonwealth Avenue,#9,Boston, MA 02116

                                    Thomas M. Hagerty
                                    256 Beacon Street, Apt.#4, Boston, MA 02116

                                    Joseph J. Incandela
                                    139 Abbott Road, Wellesley Hills, MA  02181

                                    Scott A. Schoen
                                    65 Laurel Road, Weston, MA  02193

                                    Warren C. Smith, Jr.
                                    38 Coolidge Lane, Dedham, MA  02026

                                    Scott M. Sperling
                                    4 Moore Road, Wayland, MA  01778

                                    Seth W. Lawry
                                    330 Dartmouth Street, Apt.#7S, 
                                    Boston, MA  02116

Treasurer                           Wendy L. Masler
                                    11 Waverly Street, #3, Brookline, MA  02115

Assistant Treasurer                 Andrew D. Flaster
                                    69 Wilshire Park, Needham, MA  02192

Clerk                               Wendy L. Masler
                                    11 Waverly Street, #3, Brookline, MA  02115

Assistant Clerks                    Charles W. Robins, Esq.
                                    50 Lehigh Road, Wellesley, MA  02181

                                    Jeffrey S. Wieand, Esq.
                                    1695 Lowell Road, Concord, MA  01742


THL Co-Investors III-B, LLC

Officers:

Chairman                            Thomas H. Lee
                                    1 Old Farm Road, Lincoln, MA  01773


<PAGE>
President                           David V. Harkins
                                    8 Corn Point Road, Marblehead, MA  01945

Vice Presidents                     C. Hunter Boll
                                    45 Fletcher Street, Winchester, MA  01890

                                    Thomas R. Shepherd
                                    172 Harvard Road, Stow, MA  01775

                                    Anthony J. DiNovi
                                    167 Commonwealth Avenue,#9, Boston, MA 02116

                                    Thomas M. Hagerty
                                    256 Beacon Street, Apt.#4, Boston, MA  02116

                                    Joseph J. Incandela
                                    139 Abbott Road, Wellesley Hills, MA  02181

                                    Scott A. Schoen
                                    65 Laurel Road, Weston, MA  02193

                                    Warren C. Smith, Jr.
                                    38 Coolidge Lane, Dedham, MA  02026

                                    Scott M. Sperling
                                    4 Moore Road, Wayland, MA  01778

                                    Seth W. Lawry
                                    330 Dartmouth Street, Apt.#7S, 
                                    Boston, MA  02116

Treasurer                           Wendy L. Masler
                                    11 Waverly Street, #3, Brookline, MA  02115

Assistant Treasurer                 Andrew D. Flaster
                                    69 Wilshire Park, Needham, MA  02192

Clerk                               Wendy L. Masler
                                    11 Waverly Street, #3, Brookline, MA  02115

Assistant Clerks                    Charles W. Robins, Esq.
                                    50 Lehigh Road, Wellesley, MA  02181

                                    Jeffrey S. Wieand, Esq.
                                    1695 Lowell Road, Concord, MA  01742
<PAGE>
                                   Signatures

           After reasonable inquiry and to the best knowledge and belief of each
of the undersigned, such person certifies that the information set forth in this
Statement with respect to such person is true, complete and correct.

                               THOMAS H. LEE EQUITY FUND III, L.P.
                               By:  THL Equity Advisors III Limited Partnership,
                                    its General Partner
                               By:  THL Equity Trust III, its General Partner


                               By:  /s/ Scott A. Schoen
                               Name:  Scott A. Schoen
                               Title:    Vice President


                               THOMAS H. LEE FOREIGN FUND III, L.P.
                               By:  THL Equity Advisors III Limited Partnership,
                                    its General Partner
                               By:  THL Equity Trust III, its General Partner


                               By:  /s/ Scott A. Schoen
                               Name:  Scott A. Schoen
                               Title:    Vice President

                               THOMAS H. LEE EQUITY ADVISORS III
                               LIMITED PARTNERSHIP
                               By:  THL Equity Trust III, its General Partner


                               By:  /s/ Scott A. Schoen
                               Name:  Scott A. Schoen
                               Title:    Vice President


                               THL EQUITY TRUST III


                                By:  /s/ Scott A. Schoen
                                Name:  Scott A. Schoen
                                Title:    Vice President

<PAGE>
                                THL CO-INVESTORS III-A, LLC


                                By:  /s/ Scott A. Schoen


                                THL CO-INVESTORS III-B, LLC


                                By:  /s/ Scott A. Schoen



<PAGE>





                          Exhibit 1 to Schedule 13D for
                           DecisionOne Holdings Corp.

                                    AGREEMENT

         Agreement  made this 21st day of August,  1997,  by and between each of
the undersigned.

         WHEREAS,  each of the  undersigned  is required to file a Schedule  13D
with respect to ownership of securities in DecisionOne Holdings Corp.; and

         WHEREAS, each of the undersigned is individually eligible to use this
Schedule 13D;

         NOW,  THEREFORE,  the  undersigned  agree to file only one Schedule 13D
reflecting  their  combined  beneficial  ownership of securities in  DecisionOne
Holdings Corp.


                           THOMAS H. LEE EQUITY FUND III, L.P.
                           By:  THL Equity Advisors III Limited Partnership,
                                its General Partner
                           By:  THL Equity Trust III, its General Partner


                           By:  /s/ Scott A. Schoen
                           Name:  Scott A. Schoen
                           Title:    Vice President

                           THOMAS H. LEE FOREIGN FUND III, L.P.
                           By:  THL Equity Advisors III Limited Partnership,
                                its General Partner
                           By:  THL Equity Trust III, its General Partner


                           By:  /s/ Scott A. Schoen
                           Name:  Scott A. Schoen
                           Title:    Vice President
<PAGE>
                           THOMAS H. LEE EQUITY ADVISORS III
                           LIMITED PARTNERSHIP
                           By:  THL Equity Trust III, its General Partner


                           By:  /s/ Scott A. Schoen
                           Name:  Scott A. Schoen
                           Title:    Vice President


                           THL EQUITY TRUST III


                           By:  /s/ Scott A. Schoen
                           Name:  Scott A. Schoen
                           Title:    Vice President


                           THL CO-INVESTORS III-A, LLC


                           By:  /s/ Scott A. Schoen


                           THL CO-INVESTORS III-B, LLC


                           By:  /s/ Scott A. Schoen





                                 CONFORMED COPY
                                    EXHIBIT 2













                          AGREEMENT AND PLAN OF MERGER

                                   dated as of

                                   May 4, 1997

                                      among

                           DECISIONONE HOLDINGS CORP.

                                       and

                               QUAKER HOLDING CO.

















<PAGE>
<TABLE>
<CAPTION>
                                TABLE OF CONTENTS<F1>

                                                                                             PAGE
<S>                                                                                        <C>

ARTICLE 1
THE MERGER

SECTION 1.01.  The Merger.......................................................................1
SECTION 1.02.  Conversion (or Retention) of Shares..............................................2
SECTION 1.03.  Elections........................................................................3
SECTION 1.04.  Proration of Election Price......................................................5
SECTION 1.05.  Surrender and Payment............................................................6
SECTION 1.06.  Dissenting Shares................................................................8
SECTION 1.07.  Stock Options....................................................................9
SECTION 1.08.  Warrants.........................................................................9
SECTION 1.09.  Fractional Shares...............................................................10

ARTICLE 2
THE SURVIVING CORPORATION

SECTION 2.01.  Certificate of Incorporation....................................................10
SECTION 2.02.  Bylaws .........................................................................10
SECTION 2.03.  Directors and Officers..........................................................10

ARTICLE 3
REPRESENTATIONS AND WARRANTIES OF THE COMPANY

SECTION 3.01.  Corporate Existence and Power...................................................11
SECTION 3.02.  Corporate Authorization.........................................................11
SECTION 3.03.  Governmental Authorization......................................................11
SECTION 3.04.  Non-contravention...............................................................12
SECTION 3.05.  Capitalization..................................................................12
SECTION 3.06.  Subsidiaries....................................................................13
SECTION 3.07.  SEC Filings.....................................................................14
SECTION 3.08.  Financial Statements............................................................14
SECTION 3.09.  Disclosure Documents............................................................15
SECTION 3.10.  Absence of Certain Changes......................................................16
SECTION 3.11.  No Undisclosed Material Liabilities.............................................17
SECTION 3.12.  Litigation......................................................................17
SECTION 3.13.  Taxes  .........................................................................18
SECTION 3.14.  ERISA  .........................................................................19
SECTION 3.15.  Employees.......................................................................21
SECTION 3.16.  Labor Matters...................................................................21
SECTION 3.17.  Compliance with Laws and Court Orders...........................................22

- --------
<FN>
<F1>The Table of Contents is not a part of this Agreement.
</FN>

<PAGE>
SECTION 3.18.  Licenses and Permits............................................................22
SECTION 3.19.  Repairable Parts................................................................22
SECTION 3.20.  Intellectual Property...........................................................22
SECTION 3.21.  Finders' Fees...................................................................23
SECTION 3.22.  Inapplicability of Certain Restrictions.........................................23
SECTION 3.23.  Rights Plan.....................................................................23

ARTICLE 4
REPRESENTATIONS AND WARRANTIES OF MERGERSUB

SECTION 4.01.  Corporate Existence and Power...................................................24
SECTION 4.02.  Corporate Authorization.........................................................24
SECTION 4.03.  Governmental Authorization......................................................24
SECTION 4.04.  Non-contravention...............................................................24
SECTION 4.05.  Disclosure Documents............................................................25
SECTION 4.06.  Finders' Fees...................................................................25
SECTION 4.07.  Financing.......................................................................25
SECTION 4.08.  Capitalization..................................................................26

ARTICLE 5
COVENANTS OF THE COMPANY

SECTION 5.01.  Conduct of the Company..........................................................27
SECTION 5.02.  Stockholder Meeting; Proxy Material.............................................29
SECTION 5.03.  Access to Information...........................................................29
SECTION 5.04.  Other Offers....................................................................30
SECTION 5.05.  Notices of Certain Events.......................................................33
SECTION 5.06.  Resignation of Directors........................................................33
SECTION 5.07.  Preferred Stock.................................................................33
SECTION 5.08.  Solvency Advice.................................................................33

ARTICLE 6
COVENANTS OF MERGERSUB

SECTION 6.01.  SEC Filings.....................................................................34
SECTION 6.02.  Voting of Shares................................................................34
SECTION 6.03.  Director and Officer Liability..................................................34
SECTION 6.04.  Employee Plans and Benefit Arrangements.........................................35
SECTION 6.05.  Financing.......................................................................36
SECTION 6.06.  NASDAQ Listing..................................................................36
SECTION 6.07.  Access to Information...........................................................36

ARTICLE 7
COVENANTS OF MERGERSUB AND THE COMPANY

SECTION 7.01.  Best Efforts....................................................................36
SECTION 7.02.  Certain Filings.................................................................37


<PAGE>
SECTION 7.03.  Public Announcements............................................................38
SECTION 7.04.  Further Assurances..............................................................38

ARTICLE 8
CONDITIONS TO THE MERGER

SECTION 8.01.  Conditions to the Obligations of Each Party.....................................38
SECTION 8.02.  Conditions to the Obligations of MergerSub......................................39
SECTION 8.03.  Condition to the Obligation of the Company......................................41

ARTICLE 9
TERMINATION

SECTION 9.01.  Termination.....................................................................42
SECTION 9.02.  Effect of Termination...........................................................43

ARTICLE 10
MISCELLANEOUS

SECTION 10.01.  Notices........................................................................43
SECTION 10.02.  Survival of Representations and Warranties.....................................44
SECTION 10.03.  Amendments; No Waivers.........................................................44
SECTION 10.04.  Expenses.......................................................................45
SECTION 10.05.  Successors and Assigns; Benefit................................................45
SECTION 10.06.  Governing Law..................................................................45
SECTION 10.07.  Counterparts; Effectiveness....................................................45
SECTION 10.08.  Knowledge Defined..............................................................46

Exhibit A             Amendments to the Company's Certificate of Incorporation

</TABLE>
<PAGE>
                          AGREEMENT AND PLAN OF MERGER

         AGREEMENT AND PLAN OF MERGER dated as of May 4, 1997 among  DecisionOne
Holdings Corp., a Delaware corporation (the "Company") and Quaker Holding Co., a
Delaware corporation ("MergerSub").

                              W I T N E S S E T H:

         WHEREAS,  as of the date of  execution  of this  Agreement,  all of the
outstanding  capital  stock of, or other  ownership  interest  in,  MergerSub is
owned, in the aggregate, by DLJ Merchant Banking Partners II, L.P., DLJ Offshore
Partners II, C.V., DLJ Diversified  Partners,  L.P.,  DLJMB Funding II, Inc., UK
Investment Plan 1997 Partners and DLJ First ESC LLC;

         WHEREAS,  MergerSub is unwilling to enter into this  Agreement  unless,
contemporaneously  with the  execution and delivery of this  Agreement,  certain
beneficial and record  stockholders of the Company enter into a Voting Agreement
and Irrevocable  Proxy providing for certain actions  relating to certain of the
shares of common stock, options and warrants of the Company owned by them;

         WHEREAS,   MergerSub   and  the   Company   desire   to  make   certain
representations,  warranties,  covenants and  agreements in connection  with the
Merger (as defined in Section 1.01) and also to prescribe certain  conditions to
the Merger;

         WHEREAS,   it  is   intended   that  the  Merger  be   recorded   as  a
recapitalization  for  financial  reporting  purposes  and both  parties,  after
discussion  with their  auditors,  believe  that the Merger is eligible for such
accounting treatment;

         NOW,   THEREFORE,   in   consideration   of  the   foregoing   and  the
representations,  warranties,  covenants and agreements  herein  contained,  the
parties hereto agree as follows:

                                    ARTICLE 1


                                   THE MERGER

         SECTION 1.01. The Merger. (a) At the Effective Time, MergerSub shall be
merged (the "Merger") with and into the Company in accordance  with the Delaware
Law, and in  accordance  with the terms and  conditions  hereof,  whereupon  the
separate  existence  of  MergerSub  shall  cease,  and the Company  shall be the
surviving corporation (the "Surviving Corporation").

     (b) As soon as practicable  after  satisfaction or, to the extent permitted
hereunder, waiver of all conditions to the Merger, the Company and MergerSub


<PAGE>



will file a  certificate  of merger with the  Secretary of State of the State of
Delaware and make all other  filings or  recordings  required by Delaware Law in
connection  with the Merger.  The Merger shall become  effective at such time as
the certificate of merger is duly filed with the Secretary of State of the State
of Delaware or at such later time as is specified in the  certificate  of merger
(the "Effective Time").

          (c) From and after the Effective Time, the Surviving Corporation shall
possess all the rights, privileges,  powers and franchises and be subject to all
of the restrictions,  disabilities and duties of the Company and MergerSub,  all
as provided under Delaware Law.

          (d) The Company hereby  represents  that its Board of Directors,  at a
meeting duly called and held and acting on the unanimous  recommendation  of the
Board of Directors of the Company,  other than any directors  expected to become
affiliated  with  MergerSub,  has (i)  determined  that this  Agreement  and the
transactions  contemplated hereby,  including the Merger, are fair to and in the
best interest of the Company's  stockholders,  (ii) approved this  Agreement and
the  transactions  contemplated  hereby,  including the Merger,  which  approval
satisfies in full the  requirements of the General  Corporation Law of the State
of Delaware (the "Delaware  Law")  including,  without  limitation,  Section 203
thereof with respect to the transactions contemplated hereby, and (iii) resolved
to  recommend  approval  and  adoption of this  Agreement  and the Merger by its
stockholders.  The  Company  further  represents  that  Smith  Barney  Inc.  has
delivered to the Company's Board of Directors its opinion that the consideration
to be paid in the Merger is fair to the holders of shares of common stock of the
Company, par value $0.01 per share (each, a "Share"),  from a financial point of
view.

         SECTION 1.02.  Conversion (or Retention) of Shares.  At the Effective
Time:

          (a) each  Share  held by the  Company  as  treasury  stock or owned by
MergerSub  immediately  prior to the  Effective  Time shall be canceled,  and no
payment shall be made with respect thereto;

         (b) each share of common stock,  par value $.01 per share, of MergerSub
("MergerSub Common Stock")  outstanding  immediately prior to the Effective Time
shall be  converted  into and  become 1 share of common  stock of the  Surviving
Corporation  with the same  rights,  powers  and  privileges  as the  shares  so
converted;

         (c) each  share of  preferred  stock,  par  value  $.01 per  share,  of
MergerSub ("MergerSub  Preferred Stock"), if any, outstanding  immediately prior
to the  Effective  Time shall be converted  into and become 1 share of preferred
stock of the Surviving  Corporation with the same rights,  powers and privileges
as the shares of preferred stock so converted;


<PAGE>



          (d) each  outstanding  warrant to purchase shares of MergerSub  common
stock (each, a "MergerSub Warrant") shall be automatically amended to constitute
a warrant to acquire shares of common stock of the Surviving  Corporation on the
same terms and conditions as the MergerSub Warrant; and

          (e) each Share  outstanding  immediately  prior to the Effective  Time
shall,  except as otherwise  provided in Section  1.02(a)-(d)  or as provided in
Section  1.06 with  respect  to Shares as to which  appraisal  rights  have been
exercised, be converted into the following (the "Merger Consideration"):

          (i) for each such Share with  respect to which an  election  to retain
         Company  Stock (as  defined  below) has been  effectively  made and not
         revoked or lost  pursuant  to  Sections  1.03(c),  (d) and (e)  ("Stock
         Electing Shares"),  or is deemed made pursuant to Section  1.04(d)(ii),
         as the case may be, the right to retain one share of common  stock (the
         "Stock Election  Price"),  par value $.01 per share ("Company  Stock");
         and

         (ii) for each such Share (other than Stock  Electing  Shares and Shares
         as to which an election to retain Company Stock is deemed made pursuant
         to Section 1.04(d)(ii)), the right to receive in cash from MergerSub an
         amount equal to $23.00 (the "Cash Election Price").

         SECTION  1.03.  Elections.  (a)  Each  person  who,  on or prior to the
Election  Date  referred to in (c) below,  is a record  holder of Shares will be
entitled,  with respect to such Shares, to make an unconditional  election on or
prior to such  Election  Date to  retain  the  Stock  Election  Price (a  "Stock
Election"),  on the basis hereinafter set forth. For purposes of this Agreement,
"Election" means a Stock Election.

          (b) Prior to the mailing of the Company Proxy Statement (as defined in
Section 3.09),  MergerSub  shall appoint an agent  reasonably  acceptable to the
Company  (the  "Exchange  Agent")  for the  purpose of  exchanging  certificates
representing Shares for the Merger Consideration.

          (c) MergerSub  shall  prepare and mail a form of election,  which form
shall be  subject  to the  reasonable  approval  of the  Company  (the  "Form of
Election"),  with the Company Proxy Statement to the record holders of Shares as
of the record  date for the Company  Stockholder  Meeting (as defined in Section
5.02),  which Form of Election shall be used by each record holder of Shares who
makes an Election  with  respect to any or all its Shares.  The Company will use
its  reasonable  best efforts to make the Form of Election and the Company Proxy
Statement  available  to all  persons  who become  holders of Shares  during the
period  between such record date and the Election  Date  referred to below.  Any
such holder's  Election shall have been properly made only if the Exchange Agent
shall have received at its designated  office,  by 5:00 p.m., New York City time
on


<PAGE>



the business day (the  "Election  Date") next  preceding the date of the Company
Stockholder  Meeting,  a Form of  Election  properly  completed  and  signed and
accompanied  by  certificates  for the  Shares to which  such  Form of  Election
relates,  duly endorsed in blank or otherwise in form acceptable for transfer on
the books of the Company  (or by an  appropriate  guarantee  of delivery of such
certificates as set forth in such Form of Election from a firm which is a member
of a registered national  securities exchange or of the National  Association of
Securities Dealers,  Inc. or a commercial bank or trust company having an office
or  correspondent in the United States,  provided such  certificates are in fact
delivered to the Exchange Agent within five New York Stock Exchange trading days
after the date of execution of such guarantee of delivery).

          (d) Any Form of Election may be revoked by the holder submitting it to
the Exchange  Agent only by written  notice  received by the Exchange  Agent (i)
prior to 5:00 p.m.,  New York City time on the  Election  Date or (ii) after the
date of the Company  Proxy  Statement,  if (and to the extent that) the Exchange
Agent is legally  required to permit  revocations,  and the Effective Time shall
not have occurred  prior to such date. In addition,  all Forms of Election shall
automatically  be  revoked  if the  Exchange  Agent is  notified  in  writing by
MergerSub  or the Company that the Merger has been  abandoned or this  Agreement
has been  terminated.  If a Form of  Election  is revoked,  the  certificate  or
certificates (or guarantees of delivery, as appropriate) for the Shares to which
such Form of  Election  relates  shall be promptly  returned to the  stockholder
submitting the same to the Exchange Agent.

          (e) The  determination  of the Exchange Agent shall be binding whether
or not Elections  have been  properly  made or revoked  pursuant to this Section
1.03 with respect to Shares and when elections and revocations  were received by
it. If the  Exchange  Agent  determines  that any  Election  either  (x) was not
properly made or (y) was not submitted to or received by the Exchange Agent with
respect to any Shares, such Shares shall be converted into Merger  Consideration
in accordance with Section 1.04(b)(iii) or Section 1.04(d)(ii),  as the case may
be. The Exchange Agent shall also make all computations as to the allocation and
the proration  contemplated by Section 1.04, and any such  computation  shall be
conclusive  and binding on the holders of Shares.  The Exchange  Agent may, with
the  mutual  agreement  of  MergerSub  and the  Company,  make such rules as are
consistent  with  this  Section  1.03 for the  implementation  of the  elections
provided  for herein as shall be  necessary  or  desirable  fully to effect such
elections.

         SECTION 1.04. Proration of Election Price. (a) Notwithstanding anything
in this Agreement to the contrary but subject to Sections  1.02(a) and 1.06, the
number of Shares to be converted  into the right to retain  Company Stock at the
Effective Time (the "Stock  Election  Number") shall be the sum of (A) 1,474,345
plus (B) 5.3% of the number of Shares,  if any,  issued after April 21, 1997 but
prior to the Effective Time in respect of Options (as defined below) or Warrants


<PAGE>



(as  defined  below)  (excluding  for this  purpose  any  Shares to be  canceled
pursuant to Section 1.02(a)).

          (b) If the number of Stock  Electing  Shares  exceeds in the aggregate
the  Stock  Election  Number,  then the Stock  Electing  Shares  for each  Stock
Election shall be converted into the right to retain the Stock Election Price or
the right to receive the Cash  Election  Price in  accordance  with the terms of
Section 1.02(e) in the following manner:

          (i) A stock proration factor (the "Stock  Proration  Factor") shall be
         determined by dividing the Stock Election Number by the total number of
         Stock Electing Shares.

         (ii) The number of Stock Electing Shares covered by each Stock Election
         to be converted into the right to retain the Stock Election Price shall
         be determined by multiplying  the Stock  Proration  Factor by the total
         number of Stock Electing Shares covered by such Stock Election.

        (iii) Each Stock Electing  Share,  other than any Shares  converted into
         the  right to  receive  the Stock  Election  Price in  accordance  with
         Section  1.04(b)(ii),  shall be converted into the right to receive the
         Cash Election Price as if such shares were not Stock Electing Shares in
         accordance with the terms of Section 1.02(e)(ii).

          (c) If the  number  of Stock  Electing  Shares  is equal to the  Stock
Election  Number,  then all Stock  Electing  Shares shall be converted  into the
right to  receive  the  Stock  Election  Price in  accordance  with the terms of
Section  1.02(e)(i),  and all Shares other than Stock  Electing  Shares shall be
converted into the right to receive the Cash Election Price.

          (d) If the number of Stock  Electing  Shares is less in the  aggregate
than the Stock Election Number, then:

          (i) All Stock  Electing  Shares shall be  converted  into the right to
         receive the Stock Election Price in accordance with Section 1.02(e)(i).

         (ii) Such  number of Shares with  respect to which a Stock  Election is
         not in effect ("Non-Electing Shares") shall be converted into the right
         to retain  the Stock  Election  Price  (and a Stock  Election  shall be
         deemed to have been made with  respect to such  Shares)  in  accordance
         with Section 1.02(e) in the following manner:

                       (A) a cash proration factor (the "Cash Proration Factor")
                  shall be determined by dividing (x) the difference between the
                  Stock Election Number and the number of Stock


<PAGE>



                  Electing Shares,  by (y) the total number of Shares other than
                  Stock  Electing  Shares and  Dissenting  Shares (as defined in
                  Section 1.06); and

                       (B) the number of Shares in  addition  to Stock  Electing
                  Shares to be  converted  into the  right to  retain  the Stock
                  Election  Price shall be  determined by  multiplying  the Cash
                  Proration  Factor by the total  number  of Shares  other  than
                  Stock  Electing  Shares  and  Dissenting  Shares  so that  the
                  aggregate  number of Stock  Electing  Shares and  Non-Electing
                  Shares  converted  into such right  equals the Stock  Election
                  Number.

         Subject to the  provisions of Section  1.04(d)(ii),  the Exchange Agent
shall determine (on a consistent basis among  stockholders who held Shares as to
which they did not make the election referred to in Section 1.02(e)(i), pro rata
to the  number  of shares as to which  they did not make  such  election)  which
NonElecting  Shares  shall be  converted  into the  right to  receive  the Stock
Election Price.

         SECTION  1.05.  Surrender  and  Payment.  (a)  As  soon  as  reasonably
practicable as of or after the Effective Time,  MergerSub shall deposit with the
Exchange  Agent,  for the  benefit of the  holders of Shares,  for  exchange  in
accordance  with this  Article  1, the Merger  Consideration.  For  purposes  of
determining  the Merger  Consideration  to be made  available,  MergerSub  shall
assume  that no holder of Shares  will  perfect  his right to  appraisal  of his
Shares.  Promptly after the Effective  Time,  MergerSub will send, or will cause
the Exchange  Agent to send,  to each holder of Shares at the  Effective  Time a
letter of  transmittal  for use in such  exchange  (which shall specify that the
delivery  shall be  effected,  and risk of loss and title shall pass,  only upon
proper delivery of the certificates representing Shares to the Exchange Agent).

          (b) Each  holder of Shares  that have been  converted  into a right to
receive the Merger  Consideration,  upon  surrender to the  Exchange  Agent of a
certificate or certificates  representing such Shares,  together with a properly
completed  letter of  transmittal  covering  such  Shares,  will be  entitled to
receive the Merger  Consideration  payable in respect of such  Shares.  Until so
surrendered,  each such certificate shall,  after the Effective Time,  represent
for all  purposes,  only the right to  receive  such  Merger  Consideration.  No
interest will be paid or will accrue on any cash payable as Merger Consideration
or in lieu of any fractional shares of Company Stock.

          (c) If any  portion  of the  Merger  Consideration  is to be paid to a
Person  other  than the  registered  holder  of the  Shares  represented  by the
certificate  or  certificates  surrendered in exchange  therefor,  it shall be a
condition to such payment that the  certificate or  certificates  so surrendered
shall be properly


<PAGE>



endorsed  or  otherwise  be in  proper  form for  transfer  and that the  Person
requesting  such payment  shall pay to the Exchange  Agent any transfer or other
taxes required as a result of such payment to a Person other than the registered
holder of such Shares or establish  to the  satisfaction  of the Exchange  Agent
that such tax has been paid or is not payable.  For purposes of this  Agreement,
"Person" means an individual,  a corporation,  a limited  liability  company,  a
partnership,  an  association,  a trust or any  other  entity  or  organization,
including a government or political subdivision or any agency or instrumentality
thereof.

          (d) After the Effective Time,  there shall be no further  registration
of transfers of Shares. If, after the Effective Time, certificates  representing
Shares are  presented to the Surviving  Corporation,  they shall be canceled and
exchanged for the Merger Consideration  provided for, and in accordance with the
procedures set forth, in this Article 1.

          (e) Any  portion of the Merger  Consideration  made  available  to the
Exchange Agent pursuant to Section 1.05(a) that remains unclaimed by the holders
of Shares six months after the  Effective  Time shall be returned to  MergerSub,
upon demand, and any such holder who has not exchanged his Shares for the Merger
Consideration  in  accordance  with  this  Section  prior  to  that  time  shall
thereafter  look only to MergerSub  for payment of the Merger  Consideration  in
respect of his Shares.  Notwithstanding  the foregoing,  MergerSub  shall not be
liable to any holder of Shares for any amount paid to a public official pursuant
to  applicable  abandoned  property  laws.  Any amounts  remaining  unclaimed by
holders of Shares  two years  after the  Effective  Time (or such  earlier  date
immediately  prior to such time as such amounts  would  otherwise  escheat to or
become property of any  governmental  entity) shall, to the extent  permitted by
applicable law, become the property of MergerSub free and clear of any claims or
interest of any Person previously entitled thereto.

          (f) Any  portion of the Merger  Consideration  made  available  to the
Exchange Agent pursuant to Section 1.05(a) to pay for Shares for which appraisal
rights have been perfected shall be returned to MergerSub, upon demand.

          (g) No dividends or other  distributions with respect to Company Stock
with a record date after the  Effective  Time shall be paid to the holder of any
unsurrendered certificate for Shares with respect to the shares of Company Stock
represented  thereby and no cash payment in lieu of  fractional  shares shall be
paid to any such holder  pursuant to Section  1.09 until the  surrender  of such
certificate  in  accordance  with  this  Article  1.  Subject  to the  effect of
applicable laws,  following  surrender of any such  certificate,  there shall be
paid to the holder of the certificate representing whole shares of Company Stock
issued in exchange therefor, without interest, (i) at the time of such surrender
or as promptly  after the sale of the Excess Shares (as defined in Section 1.09)
as practicable,  the amount of any cash payable in lieu of a fractional share of
Company Stock to which such


<PAGE>



holder is entitled pursuant to Section 1.09 and the amount of dividends or other
distributions  with a record date after the Effective Time theretofore paid with
respect  to such  whole  shares of Company  Stock,  and (ii) at the  appropriate
payment date, the amount of dividends or other  distributions with a record date
after  the  Effective  Time  but  prior to such  surrender  and a  payment  date
subsequent  to such  surrender  payable  with  respect to such  whole  shares of
Company Stock.

         SECTION 1.06. Dissenting Shares.  Notwithstanding  Section 1.02, Shares
which are issued and  outstanding  immediately  prior to the Effective  Time and
which are held by a holder who has not voted such shares in favor of the Merger,
who shall have  delivered a written  demand for  appraisal of such Shares in the
manner provided by the Delaware Law and who, as of the Effective Time, shall not
have effectively withdrawn or lost such right to appraisal ("Dissenting Shares")
shall not be  converted  into a right to receive the Merger  Consideration.  The
holders  thereof shall be entitled only to such rights as are granted by Section
262 of the Delaware Law. Each holder of Dissenting  Shares who becomes  entitled
to payment for such Shares  pursuant  to Section 262 of the  Delaware  Law shall
receive payment  therefor from the Surviving  Corporation in accordance with the
Delaware  Law;  provided,  however,  that (i) if any such  holder of  Dissenting
Shares shall have failed to establish  his  entitlement  to appraisal  rights as
provided  in  Section  262 of the  Delaware  Law,  (ii) if any  such  holder  of
Dissenting  Shares shall have effectively  withdrawn his demand for appraisal of
such Shares or lost his right to  appraisal  and  payment  for his Shares  under
Section 262 of the  Delaware  Law or (iii) if neither  any holder of  Dissenting
Shares nor the  Surviving  Corporation  shall have filed a petition  demanding a
determination of the value of all Dissenting  Shares within the time provided in
Section  262 of the  Delaware  Law,  such  holder  shall  forfeit  the  right to
appraisal  of such Shares and each such Share shall be treated as if it had been
a Non-Electing  Share and had been  converted,  as of the Effective Time, into a
right to receive the Merger  Consideration,  without interest thereon,  from the
Surviving Corporation as provided in Section 1.02 hereof. The Company shall give
MergerSub  prompt notice of any demands received by the Company for appraisal of
Shares,  and MergerSub  shall have the right to participate in all  negotiations
and proceedings with respect to such demands. The Company shall not, except with
the prior  written  consent of  MergerSub,  make any payment with respect to, or
settle or offer to settle, any such demands.

         SECTION 1.07.  Stock Options.  (a)  Immediately  prior to the Effective
Time,  each  outstanding  option to  acquire  Shares  granted to  employees  and
directors,  whether vested or not (the "Options") shall be canceled and, in lieu
thereof,  as soon as reasonably  practicable as of or after the Effective  Time,
the holders of such Options shall receive,  with respect to each Option,  a cash
payment in an amount  equal to the product of (x) the excess,  if any, of $23.00
over the


<PAGE>



exercise price of such Option  multiplied by (y) the number of Shares subject to
such Option.

         (b) Prior to the  Effective  Time,  the  Company  shall (i)  obtain any
consents from holders of options to purchase  Shares granted under the Company's
stock option or compensation  plans or arrangements and (ii) make any amendments
to the terms of such stock option or compensation plans or arrangements that are
necessary to give effect to the  transactions  contemplated by Section  1.07(a).
Notwithstanding any other provision of this Section,  payment may be withheld in
respect of any Option until necessary consents are obtained.

         SECTION  1.08.  Warrants.  The Company  shall use its  reasonable  best
efforts to cause holders of all outstanding  warrants  ("Warrants") to surrender
such Warrants to the Company prior to the Effective Time in exchange for payment
immediately  after  the  Effective  Time of an  amount  equal to the  difference
between the  exercise  price in respect of each Share for which such  Warrant is
exercisable  and  $23.00,  multiplied  by the  number of Shares  subject to such
Warrant,  and upon such other terms and  conditions  satisfactory  to MergerSub.
With respect to Warrants that are not  surrendered  prior to the Effective Time,
after the  Effective  Time,  the  Surviving  Corporation  shall  comply with all
applicable terms of such unsurrendered Warrants.

          SECTION  1.09.   Fractional  Shares.  (a)  No  certificates  or  scrip
representing  fractional  shares  of  Company  Stock  shall be  issued  upon the
surrender for exchange of certificates  representing Shares, and such fractional
share interests will not entitle the owner thereof to vote or to any rights of a
stockholder of the Surviving Corporation; and

         (b) Notwithstanding any other provision of this Agreement,  each holder
of  Shares  exchanged  pursuant  to the  Merger  who would  otherwise  have been
entitled to receive a fraction of a share of Company  Stock  (after  taking into
account all Shares delivered by such holder) shall receive,  in lieu thereof,  a
cash  payment  (without  interest)   representing  such  holder's  proportionate
interest in the net proceeds from the sale by the Exchange Agent  (following the
deduction of applicable  transaction  costs), on behalf of all such holders,  of
the shares (the "Excess Shares") of Company Stock  representing  such fractions.
Such sale shall be made as soon as practicable after the Effective Time.

                                    ARTICLE 2


                            THE SURVIVING CORPORATION

         SECTION 2.01.  Certificate of Incorporation.  The certificate of
incorporation of the Company in effect immediately prior to the Effective Time
shall be amended as of the Effective Time as set forth in Exhibit A, and as so


<PAGE>



amended,  shall be the certificate of incorporation of the Surviving Corporation
until thereafter amended in accordance with applicable law.

         SECTION 2.02.  Bylaws.  The bylaws of MergerSub in effect at the
Effective Time shall be the bylaws of the Surviving Corporation until amended in
accordance with applicable law.

         SECTION  2.03.  Directors  and  Officers.  From and after the Effective
Time, until successors are duly elected or appointed and qualified in accordance
with  applicable law, (a) the directors of MergerSub at the Effective Time shall
be the  directors  of the  Surviving  Corporation,  and (b) the  officers of the
Company  at  the  Effective   Time  shall  be  the  officers  of  the  Surviving
Corporation.



                                    ARTICLE 3


                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company represents and warrants to MergerSub that:

         SECTION  3.01.   Corporate  Existence  and  Power.  The  Company  is  a
corporation duly  incorporated,  validly existing and in good standing under the
laws of the State of  Delaware,  and has all  corporate  powers and all material
governmental licenses, authorizations,  consents and approvals required to carry
on its business as now  conducted.  The Company is duly qualified to do business
as a foreign  corporation and is in good standing in each jurisdiction where the
character of the property  owned or leased by it or the nature of its activities
makes such qualification  necessary,  except for those  jurisdictions  where the
failure to be so qualified would not,  individually or in the aggregate,  have a
Material Adverse Effect. The Company has heretofore  delivered to MergerSub true
and complete copies of the Company's  certificate of incorporation and bylaws as
currently in effect.  For purposes of this Agreement,  "Material Adverse Effect"
means any material  adverse  effect on the condition  (financial or  otherwise),
business,  assets,  or results of operations of the Company and the Subsidiaries
taken as a whole,  but excluding (i) any change  resulting from general economic
conditions and (ii) with respect to Section  3.10(a) and Section 3.10(h) (in the
case of the latter,  with respect to agreements only), any change arising out of
the  transactions  contemplated  by this  Agreement and the public  announcement
thereof.

         SECTION 3.02.  Corporate  Authorization.  The  execution,  delivery and
performance by the Company of this Agreement and the consummation by the Company
of the  transactions  contemplated  hereby are within  the  Company's  corporate
powers and,  except for any required  approval by the Company's  stockholders by
majority vote in connection with the consummation of the


<PAGE>



Merger,  have been duly  authorized by all necessary  corporate and  stockholder
action. This Agreement constitutes a valid and binding agreement of the Company.

         SECTION 3.03. Governmental Authorization.  The execution,  delivery and
performance by the Company of this Agreement and the  consummation of the Merger
by the  Company  require  no action by or in  respect  of, or filing  with,  any
governmental body, agency,  official or authority other than (a) the filing of a
certificate of merger in accordance  with Delaware Law; (b) compliance  with any
applicable  requirements of the Hart-Scott-Rodino  Antitrust Improvements Act of
1976,  as  amended  (the  "HSR  Act");   (c)  compliance   with  any  applicable
requirements  of the  Securities  Exchange Act of 1934, as amended and the rules
and regulations promulgated thereunder (the "Exchange Act"); (d) compliance with
the  applicable  requirements  of the Securities Act of 1933, as amended and the
rules  and  regulations  promulgated  thereunder  (the  "Securities  Act");  (e)
compliance with any applicable foreign or state securities or Blue Sky laws; and
(f) where the  failure to take such  action  would not,  individually  or in the
aggregate, have a Material Adverse Effect.

         SECTION 3.04. Non-contravention.  Except as set forth on Schedule 3.04,
the execution, delivery and performance by the Company of this Agreement and the
consummation by the Company of the transactions  contemplated  hereby do not and
will not (a)  contravene or conflict with the  certificate of  incorporation  or
bylaws of the Company,  (b) assuming  compliance with the matters referred to in
Section  3.03,  contravene  or conflict  with or  constitute  a violation of any
provision of any law, regulation, judgment, writ, injunction, order or decree of
any court or governmental authority binding upon or applicable to the Company or
any  Subsidiary  or any of their  properties  or assets,  (c)  except  under the
Revolving Credit Agreement dated as of April 26, 1996 among the Company, certain
of its  Subsidiaries  and the banks named  therein,  as amended (the  "Revolving
Credit  Agreement")  constitute  a  default  under  or give  rise to a right  of
termination,  cancellation  or  acceleration  of any right or  obligation of the
Company or any  Subsidiary  or to a loss of any  benefit to which the Company or
any  Subsidiary is entitled  under any provision of any  agreement,  contract or
other  instrument  binding  upon the Company or any  Subsidiary  or any license,
franchise,  permit or other  similar  authorization  held by the  Company or any
Subsidiary, or (d) result in the creation or imposition of any Lien on any asset
of the Company or any  Subsidiary,  except,  in the case of clauses (b), (c) and
(d), to the extent that any such  violation,  failure to obtain any such consent
or other action,  default, right, loss or Lien would not, individually or in the
aggregate,  have a Material  Adverse  Effect.  For  purposes of this  Agreement,
"Lien" means,  with respect to any asset, any mortgage,  lien,  pledge,  charge,
security interest or encumbrance of any kind in respect of such asset.


<PAGE>



         SECTION  3.05.  Capitalization.  The  authorized  capital  stock of the
Company consists of (i) 100,000,000 shares of common stock ("Common Stock"), par
value  $.01 per share,  of which as of April 21,  1997,  there were  outstanding
27,817,830  shares of Common  Stock and Options to purchase an  aggregate of not
more than  2,932,014  shares of Common  Stock (of which  options to  purchase an
aggregate  of  1,364,014  shares  of Common  Stock  were  exercisable)  and (ii)
5,000,000  shares of preferred  stock  ("Preferred  Stock"),  par value $.01 per
share,  of which as of April 21,  1997 none were issued and  outstanding.  As of
April 21, 1997 there were  Warrants to  purchase:  (i) 134,478  shares of common
stock of the  Company at an exercise  price of $5.90 per share and (ii)  468,750
shares or common  stock of the Company at an exercise  price of $0.10 per share.
The aggregate exercise price of the (i) Options outstanding as of April 21, 1997
is  $22,064,966.50  and  (ii)  Warrants  outstanding  as of  April  21,  1997 is
$840,295.20.  All  outstanding  shares of capital stock of the Company have been
duly authorized and validly issued and are fully paid and nonassessable.  Except
as set forth in this  Section  and  except  for  changes  since  April 21,  1997
resulting from the exercise of Options and Warrants,  in each case,  outstanding
on such date,  there are  outstanding  (a) no shares of  capital  stock or other
voting securities of the Company,  (b) no securities of the Company  convertible
into or  exchangeable  for shares of capital  stock or voting  securities of the
Company,  and (c) no options or other rights to acquire from the Company, and no
obligation  of the Company to issue,  any capital  stock,  voting  securities or
securities  convertible  into  or  exchangeable  for  capital  stock  or  voting
securities  of the Company  (the items in clauses  3.05(a),  3.05(b) and 3.05(c)
being  referred  to  collectively  as the  "Company  Securities").  There are no
outstanding  obligations of the Company or any Subsidiary to repurchase,  redeem
or otherwise acquire any Company Securities.

         SECTION 3.06.  Subsidiaries.  (a) Each Subsidiary is a corporation duly
incorporated,  validly  existing  and in good  standing  under  the  laws of its
jurisdiction  of  incorporation,  has all  corporate  powers  and  all  material
governmental licenses, authorizations,  consents and approvals required to carry
on its  business  as now  conducted  and is duly  qualified  to do business as a
foreign  corporation  and is in good  standing  in each  jurisdiction  where the
character of the property  owned or leased by it or the nature of its activities
makes  such  qualification  necessary,  except  where the  failure  to have such
licenses,  authorizations,  consents and  approvals  or for those  jurisdictions
where failure to be so qualified  would not,  individually  or in the aggregate,
have a Material  Adverse Effect.  For purposes of this  Agreement,  "Subsidiary"
means any  corporation  or other entity of which  securities or other  ownership
interests  having  ordinary  voting  power to elect a  majority  of the board of
directors  or  other  persons  performing  similar  functions  are  directly  or
indirectly  owned by the  Company  and/or  one or more  Subsidiary,  except  for
Properties Holding Corporation,  Decision Data Computer Investment  Corporation,
Decision   Data  Computer   International   S.A.  and   Properties   Development
Corporation, none of which (i) is


<PAGE>



performing  any  activity  significant  to the  business  of the Company and its
Subsidiaries  or (ii) has any  material  assets or  liabilities  (together,  the
"Immaterial Subsidiaries"),  provided, however that for the purposes of Articles
5, 6 and 7  hereof,  the term  "Subsidiaries"  shall be deemed  to  include  the
Immaterial Subsidiaries.  All Subsidiaries and their respective jurisdictions of
incorporation are identified in the Company's annual report on Form 10-K for the
fiscal year ended June 30, 1996 (the "Company 10-K").

         (b)  Except  for the  restrictions  on  disposition  of  capital  stock
pursuant to the Revolving Credit Agreement, all of the outstanding capital stock
of, or other ownership  interests in, each Subsidiary,  is owned by the Company,
directly  or  indirectly,  free and  clear  of any  Lien  and free of any  other
limitation or restriction  (including any restriction on the right to vote, sell
or otherwise  dispose of such capital stock or other ownership  interests).  All
such capital stock has been duly authorized and validly issued and is fully paid
and  non-assessable.  There are no outstanding  (i) securities of the Company or
any Subsidiary  convertible  into or exchangeable for shares of capital stock or
other voting  securities  or ownership  interests  in any  Subsidiary,  and (ii)
options or other  rights to acquire from the Company or any  Subsidiary,  and no
other  obligation of the Company or any Subsidiary to issue,  any capital stock,
voting securities or other ownership interests in, or any securities convertible
into or  exchangeable  for any capital  stock,  voting  securities  or ownership
interests in, any Subsidiary  (the items in clauses  3.06(b)(i) and  3.06(b)(ii)
being referred to  collectively as the  "Subsidiary  Securities").  There are no
outstanding  obligations of the Company or any Subsidiary to repurchase,  redeem
or otherwise acquire any outstanding Subsidiary Securities.

         SECTION  3.07.  SEC  Filings.  (a) The  Company has made  available  to
MergerSub (i) the Company 10-K, (ii) its quarterly  reports on Form 10-Q for its
fiscal  quarters ended  September 30, 1996 and December 31, 1996  (collectively,
the  "Forms  10-Q"),  (iii)  its proxy or  information  statements  relating  to
meetings  of, or actions  taken  without a meeting by, the  stockholders  of the
Company  held  since  January  1,  1996,  and  (iv)  all of its  other  reports,
statements,  schedules and registration statements filed with the Securities and
Exchange Commission (the "SEC") since January 1, 1996 (the documents referred to
in  clauses  (i)-(iv),  together  with  Schedule  3.08  collectively,  the  "SEC
Documents").

          (b) As of its  filing  date,  each  such  report  or  statement  filed
pursuant to the Exchange Act did not contain any untrue  statement of a material
fact  or omit to  state  any  material  fact  necessary  in  order  to make  the
statements made therein, in the light of the circumstances under which they were
made, not misleading.

          (c) Each such registration statement,  as amended or supplemented,  if
applicable,  filed pursuant to the Securities Act, as of the date such statement
or amendment became effective did not contain any untrue statement of a material


<PAGE>



fact or omit to state  any  material  fact  required  to be  stated  therein  or
necessary to make the statements therein not misleading.

         SECTION 3.08. Financial Statements.  The audited consolidated financial
statements  and  unaudited  consolidated  interim  financial  statements  of the
Company  included in its annual  reports on Form 10-K,  in the Forms 10-Q and in
Schedule 3.08 fairly  present,  in all material  respects,  in  conformity  with
generally accepted  accounting  principles applied on a consistent basis (except
as may be indicated in the notes thereto),  the consolidated  financial position
of the Company and its  consolidated  subsidiaries  as of the dates  thereof and
their  consolidated  results of operations and changes in financial position for
the periods then ended  (subject to normal  year-end  adjustments in the case of
any unaudited  interim  financial  statements).  For purposes of this Agreement,
"Balance  Sheet"  means the  consolidated  balance  sheet of the Company and its
subsidiaries  as of June 30,  1996 set forth in the  Company  10-K and  "Balance
Sheet Date" means June 30, 1996.

         SECTION 3.09.  Disclosure  Documents.  (a) Each document required to be
filed  by  the  Company  with  the  SEC  in  connection  with  the  transactions
contemplated by this Agreement (the "Company Disclosure Documents"),  including,
without limitation, the proxy or information statement of the Company containing
information  required  by  Regulation  14A  under  the  Exchange  Act,  and,  if
applicable,  Rule 13e-3 and Schedule  13E-3 under the Exchange Act (the "Company
Proxy  Statement"),  to be filed with the SEC in connection with the Merger, and
any amendments or supplements thereto will, when filed, comply as to form in all
material  respects  with the  applicable  requirements  of the Exchange Act. The
representations and warranties  contained in this Section 3.09(a) will not apply
to statements or omissions  included in the Company  Disclosure  Documents based
upon information  furnished to the Company in writing by MergerSub  specifically
for use therein.

          (b) At the  time the  Company  Proxy  Statement  or any  amendment  or
supplement  thereto is first  mailed to  stockholders  of the Company and at the
time such  stockholders  vote on adoption of this  Agreement,  the Company Proxy
Statement,  as  supplemented  or amended,  if  applicable,  will not contain any
untrue statement of a material fact or omit to state any material fact necessary
in order to make the statements made therein,  in the light of the circumstances
under  which they were made,  not  misleading.  At the time of the filing of any
Company  Disclosure  Document other than the Company Proxy  Statement and at the
time of any  distribution  thereof,  such Company  Disclosure  Document will not
contain any untrue statement of a material fact or omit to state a material fact
necessary  in order to make the  statements  made  therein,  in the light of the
circumstances  under which they were made, not misleading.  The  representations
and warranties contained in this Section 3.09(b) will not apply to statements or
omissions


<PAGE>



included in the Company Disclosure Documents based upon information furnished to
the Company in writing by MergerSub specifically for use therein.

          (c) The information with respect to the Company or any Subsidiary that
the  Company  furnishes  to  MergerSub  in writing  specifically  for use in the
MergerSub  Disclosure  Documents  (as defined in Section  6.01) will not, at the
time of the filing thereof,  at the time of any distribution  thereof and at the
time of the meeting of the Company's stockholders,  contain any untrue statement
of a material  fact or omit to state any  material  fact  required  to be stated
therein or necessary in order to make the statements made therein,  in the light
of the circumstances under which they were made, not misleading.

         SECTION 3.10. Absence of Certain Changes. Since the Balance Sheet Date,
the Company and  Subsidiaries  have  conducted  their  business in the  ordinary
course consistent with past practice and there has not been:

          (a) except as  disclosed  in the Forms  10-Q and  Schedule  3.08,  any
event,  occurrence or development of a state of facts which,  individually or in
the  aggregate,  has had,  or would  reasonably  be  expected to have a Material
Adverse Effect;

          (b) any declaration, setting aside or payment of any dividend or other
distribution  with  respect to any shares of capital  stock of the  Company,  or
(other than any retirement of Options or Warrants  contemplated pursuant to this
Agreement) any repurchase, redemption or other acquisition by the Company or any
Subsidiary of any outstanding shares of capital stock or other securities of, or
other ownership interests in, the Company or any Subsidiary;

          (c)   except as disclosed in the SEC Documents, any amendment of any
material term of any outstanding security of the Company or any Subsidiary;

          (d)  except  as  disclosed  in  the  SEC  Documents,  any  incurrence,
assumption or guarantee by the Company or any Subsidiary of any indebtedness for
borrowed money, other than in the ordinary course of business and in amounts and
on terms consistent with past practices;

          (e) any damage,  destruction  or other  casualty  loss (whether or not
covered by  insurance)  affecting  the  business or assets of the Company or any
Subsidiary which, individually or in the aggregate, has had, or would reasonably
be expected to have, a Material Adverse Effect;

          (f) except as disclosed in Schedule 5.01,  any material  change in any
method of accounting or  accounting  practice by the Company or any  Subsidiary,
except  for any such  change  required  by  reason  of a  concurrent  change  in
generally accepted accounting principles;


<PAGE>




          (g) except as disclosed in the SEC  Documents or in Schedule  3.10(g),
any (i) grant of any severance or  termination  pay to any director,  officer or
employee of the Company or any Subsidiary, (ii) entering into of any employment,
deferred  compensation or other similar  agreement (or any amendment to any such
existing agreement) with any director, officer or employee of the Company or any
Subsidiary,  (iii) increase in benefits payable under any existing  severance or
termination   pay  policies  or  employment   agreements  or  (iv)  increase  in
compensation,  bonus  or  other  benefits  payable  to  directors,  officers  or
employees of the Company or any Subsidiary, other than in the ordinary course of
business consistent with past practice; or

          (h) any cancellation of any licenses, sublicenses, franchises, permits
or  agreements  to which  the  Company  or any  Subsidiary  is a  party,  or any
notification  to the  Company  or any  Subsidiary  that  any  party  to any such
arrangements  intends  to cancel  or not  renew  such  arrangements  beyond  its
expiration  date  as in  effect  on  the  date  hereof,  which  cancellation  or
notification,  individually or in the aggregate, has had, or would reasonably be
expected to have, a Material Adverse Effect.

         SECTION  3.11.  No  Undisclosed  Material  Liabilities.  There  are  no
liabilities  of the Company or any  Subsidiary of any kind  whatsoever,  whether
accrued,  contingent,  absolute,  determined,  determinable or otherwise, which,
individually or in the aggregate, would reasonably be expected to be material to
the business of the Company and its Subsidiaries taken as a whole, other than:

          (a)   liabilities disclosed or provided for in the Balance Sheet;

          (b) liabilities disclosed in the SEC Documents filed after the Balance
Sheet Date but prior to the date of this Agreement;

          (c) liabilities incurred in the ordinary course of business consistent
with past practice  since the Balance Sheet Date,  which in the aggregate  would
not have a Material Adverse Effect;

          (d)   liabilities under this Agreement; and

          (e)  liabilities  under  contracts or agreements of the Company or any
Subsidiary  entered  into  in the  ordinary  course  of  business  (as to  which
contracts  or  agreements  there is no breach or violation by the Company or any
Subsidiary).

     SECTION 3.12. Litigation. Except as disclosed in Schedule 3.12, there is no
action,  suit,  investigation  or  proceeding  (or any basis  therefor)  pending
against, or to the knowledge of the Company threatened against or affecting, the
Company or any Subsidiary or any of their respective properties before any court
or


<PAGE>



arbitrator or any governmental  body, agency or official which, if determined or
resolved  adversely  to the Company or any  Subsidiary  in  accordance  with the
plaintiff's  demands,  would  reasonably be expected to have a Material  Adverse
Effect or which in any manner challenges or seeks to prevent,  enjoin,  alter or
materially  delay  the  Merger  or any of the  other  transactions  contemplated
hereby.

         SECTION 3.13. Taxes. (a) All material tax returns, statements,  reports
and forms (including  estimated tax returns and reports and information  returns
and reports)  required to be filed with any taxing authority with respect to any
tax period  (or  portion  thereof)  ending on or before  the  Effective  Time (a
"PreClosing Tax Period") by or on behalf of the Company or any Subsidiary of the
Company  (collectively,  the  "Returns"),  were  filed when due  (including  any
applicable extension periods) in accordance with all applicable laws.

          (b) The Company and its Subsidiaries have timely paid, or withheld and
remitted to the appropriate  taxing  authority,  all material taxes shown as due
and payable on all Returns that have been filed.

          (c) The  charges,  accruals and reserves for taxes with respect to the
Company  and any  Subsidiary  for any  Pre-Closing  Tax  Period  (including  any
PreClosing  Tax Period for which no Return has yet been filed,  with  respect to
which Periods the Company has made  estimates in accordance  with past practice)
reflected  on the  books of the  Company  and its  Subsidiaries  (excluding  any
provision for deferred income taxes) are adequate to cover such taxes.

         (d) There is no material claim (including under any  indemnification or
tax-sharing  agreement),  audit, action, suit, proceeding,  or investigation now
pending or threatened in writing against or in respect of any tax or "tax asset"
of the  Company  or any  Subsidiary,  other than (i)  periodic  sales tax audits
occurring  in  the  ordinary  course  of  business,  the  resolution  of  which,
individually or in the aggregate,  the Company believes will not have a Material
Adverse  Effect,  and  (ii)  claims,  audits,  actions,  suits,  proceedings  or
investigations with respect to which the Company is indemnified in full pursuant
to the Stock Purchase  Agreement  among Decision  Servcom,  Inc.,  Bell Atlantic
Business Systems Services,  Inc., and Bell Atlantic Business Systems, Inc. dated
September  19, 1995.  For purposes of this  Section  3.13,  the term "tax asset"
shall include any net operating  loss, net capital loss,  investment tax credit,
foreign tax credit,  charitable  deduction or any other credit or tax  attribute
which could reduce taxes.

          (e) There are no Liens for taxes upon the assets of the Company or its
Subsidiaries except for Liens for current taxes not yet due.

         (f) Neither the Company nor any of its  Subsidiaries  has been a United
States real property holding corporation within the meaning of Section 897(c)(2)


<PAGE>



of the  Internal  Revenue  Code of 1986,  as  amended  (the  "Code")  during the
applicable period specified in Section 897(c)(1)(A)(ii) of the Code.

         SECTION 3.14. ERISA. (a) Schedule 3.14(a) sets forth a list identifying
each  "employee  benefit  plan",  as  defined in  Section  3(3) of the  Employee
Retirement  Income Security Act of 1974  ("ERISA"),  which (i) is subject to any
provision of ERISA and (ii) is maintained, administered or contributed to by the
Company or any  affiliate  (as defined  below) and covers any employee or former
employee  of the  Company or any  affiliate  or under  which the  Company or any
affiliate has any liability.  Copies of such plans (and, if applicable,  related
trust agreements) and all amendments thereto and written interpretations thereof
have been furnished to MergerSub  together with (A) the three most recent annual
reports (Form 5500  including,  if applicable,  Schedule B thereto)  prepared in
connection with any such plan and (B) the most recent actuarial valuation report
prepared  in  connection  with  any  such  plan.  Such  plans  are  referred  to
collectively  herein as the  "Employee  Plans".  For  purposes of this  Section,
"affiliate"  of any Person  means any other  Person  which,  together  with such
Person, would be treated as a single employer under Section 414 of the Code. The
only Employee  Plans which  individually  or  collectively  would  constitute an
"employee  pension  benefit  plan" as  defined  in  Section  3(2) of ERISA  (the
"Pension  Plans") are  identified  as such in the list  referred  to above.  The
Company will make  available  to MergerSub  complete  age,  salary,  service and
related data as of the most  recently  available  date for  employees and former
employees of the Company and any affiliate covered under the Pension Plans.

          (b) No Employee Plan constitutes a "multiemployer plan", as defined in
Section  3(37)  of ERISA  (a  "Multiemployer  Plan"),  and no  Employee  Plan is
maintained in connection  with any trust  described in Section  501(c)(9) of the
Code. Except as otherwise  identified in Schedule  3.14(b),  no Employee Plan is
subject to Title IV of ERISA and no "accumulated funding deficiency", as defined
in Section 412 of the Code,  has been incurred with respect to any Pension Plan,
whether or not waived.  The Company knows of no "reportable  event",  within the
meaning of Section 4043 of ERISA,  and no event described in Section 4041, 4042,
4062 or 4063 of ERISA has occurred in connection  with any Employee Plan,  other
than a "reportable  event" or other event that individually or in the aggregate,
has not had, and would not  reasonably  be expected to have, a Material  Adverse
Effect.  To the  Company's  knowledge,  no  condition  exists  and no event  has
occurred  that could  constitute  grounds for  termination  of any Employee Plan
subject to Title IV of ERISA and neither  the Company nor any of its  affiliates
has incurred any liability  under Title IV of ERISA  arising in connection  with
the termination of, or complete or partial  withdrawal from, any plan covered or
previously covered by Title IV of ERISA.  Nothing done or omitted to be done and
no transaction or holding of any asset under or in connection  with any Employee
Plan has or will make the Company or any Subsidiary,  any officer or director of
the Company or any Subsidiary subject to


<PAGE>



any  liability  under Title I of ERISA or liable for any tax pursuant to Section
4975 of the Code which liability,  individually or in the aggregate, has had, or
would reasonably be expected to have, a Material Adverse Effect.

          (c) Each Employee Plan which is intended to be qualified under Section
401(a) of the Code is either a standardized prototype plan covered by an opinion
letter  issued  by  the  IRS  or an  individually  designed  plan  covered  by a
determination  letter  issued by the IRS and, to the  knowledge  of the Company,
nothing has occurred since the date of the opinion or determination letter which
resulted,  or is likely to result,  in the  Company's  inability to rely on such
letters.  The  Company  has  furnished  to  MergerSub  copies of the most recent
Internal Revenue Service opinion determination letters with respect to each such
Plan. Each Employee Plan has been maintained in substantial  compliance with its
terms and with the  requirements  prescribed  by any and all  statutes,  orders,
rules and  regulations,  including but not limited to ERISA and the Code,  which
are applicable to such Plan.

          (d)  Except as set forth in  Schedule  3.14(d)  there is no  contract,
agreement,  plan or arrangement  covering any employee or former employee of the
Company or any affiliate that, individually or collectively,  could give rise to
the payment of any amount that would not be deductible  pursuant to the terms of
Section 280G of the Code.

          (e) Schedule 3.14(e) sets forth a list of each  employment,  severance
or other similar  contract,  arrangement  or policy and each plan or arrangement
(written or oral) providing for insurance  coverage  (including any self-insured
arrangements),   workers'   compensation,   disability  benefits,   supplemental
unemployment  benefits,  vacation benefits,  retirement benefits or for deferred
compensation,  profit-sharing,  bonuses,  stock options,  stock  appreciation or
other forms of incentive compensation or post-retirement insurance, compensation
or benefits which (i) is not an Employee Plan, (ii) is entered into,  maintained
or contributed to, as the case may be, by the Company or any of its Subsidiaries
and (iii)  covers any  employee or former  employee of the Company or any of its
Subsidiaries.  Such contracts,  plans and  arrangements as are described  above,
copies  or  descriptions  of all of which  have  been  furnished  previously  to
MergerSub  are referred to  collectively  herein as the "Benefit  Arrangements".
Each Benefit Arrangement has been maintained in substantial  compliance with its
terms and with the  requirements  prescribed  by any and all  statutes,  orders,
rules and regulations that are applicable to such Benefit Arrangement.

          (f) To the  knowledge of the Company,  no condition  exists that would
prevent the Company or any Subsidiary  from amending or terminating any Employee
Plan or Benefit  Arrangement  providing health or medical benefits in respect of
any active employee of the Company or any Subsidiary.



<PAGE>



          (g)  Except  as  disclosed  on  Schedule  3.14(g),  there  has been no
amendment to, written interpretation or announcement (whether or not written) by
the  Company  or any of its  affiliates  relating  to,  or  change  in  employee
participation or coverage under, any Employee Plan or Benefit  Arrangement which
would  increase  materially  the expense of  maintaining  such  Employee Plan or
Benefit  Arrangement  above the level of the expense incurred in respect thereof
for the fiscal  year ended on the  Balance  Sheet Date other than with regard to
any changes mandated by law.

          (h) Except as disclosed in Section  3.15,  neither the Company nor any
Subsidiary  is a party to or subject  to any union  contract  or any  employment
contract or  arrangement  providing  for annual future  compensation  (excluding
sales commissions) of $150,000 or more with any officer, director or employee.

         SECTION  3.15.  Employees.  The Company has  disclosed  to MergerSub in
writing on the date of this  Agreement the names,  titles,  annual  salaries and
other  compensation of all employees of the Company (the "Key Employees")  whose
base  compensation,  together with any other cash compensation  (excluding sales
commissions), was in excess of $150,000 per annum for calendar year 1996. Except
as disclosed to MergerSub in writing on the date of this Agreement,  none of the
Key  Employees  has  indicated to the Company in writing on or prior to the date
hereof  that  he or  she  intends  to  resign  or  retire  as a  result  of  the
transactions  contemplated  by this  Agreement or otherwise  within three months
after the Effective Time.

         SECTION 3.16.  Labor  Matters.  The Company is in  compliance  with all
currently applicable laws respecting employment practices,  terms and conditions
of  employment  and wages and hours,  and is not  engaged  in any  unfair  labor
practice,  the failure to comply with which or engagement in which,  as the case
may be, individually or in the aggregate,  has not had, and would not reasonably
be  expected  to have,  a  Material  Adverse  Effect.  There is no unfair  labor
practice  complaint  pending or, to the  knowledge  of the  Company,  threatened
against  the  Company  before the  National  Labor  Relations  Board.  Except as
otherwise set forth on Schedule  3.16,  there are no strikes,  slowdowns,  union
organizational  campaigns  or  other  protected  concerted  activity  under  the
National Labor Relations Act or, to the knowledge of Company,  threats  thereof,
by or with respect to any employees of the Company.

         SECTION  3.17.  Compliance  with Laws and  Court  Orders.  Neither  the
Company nor any  Subsidiary  is in  violation  of, or has since  January 1, 1996
violated,  and to the knowledge of the Company none is under  investigation with
respect  to or has been  threatened  to be charged  with or given  notice of any
violation  of,  in each  case,  by any  governmental  agency or  authority,  any
applicable law, rule, regulation,  judgment, injunction, order or decree, except
for


<PAGE>



violations  that have not had,  and would not  reasonably  be  expected to have,
individually or in the aggregate, a Material Adverse Effect.

         SECTION  3.18.  Licenses and  Permits.  Except as set forth on Schedule
3.18 or except as has not had,  and would not  reasonably  be  expected to have,
individually or in the aggregate, a Material Adverse Effect, (i) the Permits are
valid and in full force and effect,  (ii) neither the Company nor any Subsidiary
is in default under,  and no condition  exists that with notice or lapse of time
or both would  constitute  a default  under,  the  Permits and (iii) none of the
Permits  will be  terminated  or impaired or become  terminable,  in whole or in
part, as a result of the transactions  contemplated hereby. "Permits" means each
material  license,  franchise,  permit,  certificate,  approval or other similar
authorization  affecting,  or  relating in any way to, the assets or business of
the Company and its Subsidiaries.


         SECTION 3.19.  Repairable  Parts. The repairable parts set forth in the
Balance Sheet were stated therein at cost less accumulated  amortization.  Since
the Balance Sheet Date, the repairable parts of the Company and its Subsidiaries
have been  maintained in the ordinary  course of business.  All such  repairable
parts are  owned  free and  clear of all  Liens,  except  for a  purchase  money
security  interest in certain parts in favor of Electronic Data Systems Corp. to
secure the issuance of approximately $2,000,000 of credits. The repairable parts
recorded  on the  Balance  Sheet  consist  of, and all  repairable  parts of the
Company and its  Subsidiaries as of the Effective Time will consist of, items of
a quality usable in the normal course of business consistent with past practices
(it being  understood that at any given time, a portion of repairable  parts are
not in good repair) and are and will be in quantities  sufficient for the normal
operation of the business of the Company and its Subsidiaries in accordance with
past practice.

         SECTION  3.20.  Intellectual  Property.   Except  for  that  litigation
involving certain  independent  service providers  referred to in "Item 3. Legal
Proceedings"  in the Company  10-K,  provided that the Company is not a party to
litigation of such nature which would be required to be disclosed in response to
this sentence, the Company and the Subsidiaries own or possess adequate licenses
or other rights to use all Intellectual Property Rights necessary to conduct the
business now  operated by them,  except where the failure to own or possess such
licenses or rights, individually or in the aggregate, has not had, and would not
reasonably be expected to have, a Material  Adverse Effect.  To the knowledge of
the  Company,   the  Intellectual   Property  Rights  of  the  Company  and  the
Subsidiaries  do not conflict  with or infringe upon any  Intellectual  Property
Rights  of  others  to  the  extent  that,  if   sustained,   such  conflict  or
infringement,  individually or in the aggregate, would reasonably be expected to
have a Material  Adverse Effect.  For purposes of this Agreement,  "Intellectual
Property  Right"  means any  trademark,  service  mark,  trade name,  mask work,
copyright,  patent, software license, other data base, invention,  trade secret,
know-how (including any


<PAGE>



registrations  or applications  for registration of any of the foregoing) or any
other similar type of proprietary intellectual property right.

         SECTION  3.21.  Finders'  Fees.  With the  exception of fees payable to
Smith Barney Inc., a copy of whose  engagement  agreement  has been  provided to
MergerSub,  there is no investment banker,  broker, finder or other intermediary
which has been  retained by or is authorized to act on behalf of, the Company or
any Subsidiary  who might be entitled to any fee or commission  from the Company
or any Subsidiary or any of its affiliates upon consummation of the transactions
contemplated by this Agreement.

         SECTION 3.22.  Inapplicability of Certain Restrictions.  Section 203 of
the Delaware Law does not in any way restrict the  consummation of the Merger or
the other  transactions  contemplated  by this  Agreement.  The adoption of this
Agreement  by the  affirmative  vote of the  holders  of Shares  entitling  such
holders to exercise at least a majority of the voting power of the Shares is the
only vote of holders of any class or series of the capital  stock of the Company
required  to adopt this  Agreement  or to approve the Merger or any of the other
transactions  contemplated  hereby, and no higher or additional vote is required
pursuant to of the Company's certificate of incorporation or otherwise.

         SECTION 3.23.  Rights Plan.  Neither the Company nor any of its
Subsidiaries has any rights plan or similar common stock or preferred stock
purchase plan or similar arrangement.

                                    ARTICLE 4


                   REPRESENTATIONS AND WARRANTIES OF MERGERSUB

         MergerSub represents and warrants to the Company that:

         SECTION 4.01. Corporate Existence and Power. MergerSub is a corporation
duly  incorporated,  validly existing and in good standing under the laws of its
jurisdiction  of  incorporation  and has all  corporate  powers and all material
governmental licenses, authorizations,  consents and approvals required to carry
on its business as now conducted. Since the date of its incorporation, MergerSub
has  not  engaged  in  any  activities  other  than  in  connection  with  or as
contemplated  by this  Agreement and the Merger or in connection  with arranging
any  financing  required to consummate  the  transactions  contemplated  hereby.
MergerSub  has  furnished  to  the  Company  true  and  correct  copies  of  its
certificate of incorporation and by-laws, which shall not be amended or modified
prior to the  Effective  Time  except  to  reflect  the  terms of the  MergerSub
Preferred Stock.

         SECTION 4.02.  Corporate Authorization.  The execution, delivery and
performance by MergerSub of this Agreement and the consummation by


<PAGE>



MergerSub  of the  transactions  contemplated  hereby are  within the  corporate
powers of MergerSub and have been duly authorized by all necessary corporate and
stockholder action. This Agreement  constitutes a valid and binding agreement of
MergerSub.

         SECTION 4.03. Governmental Authorization.  The execution,  delivery and
performance by MergerSub of this Agreement and the  consummation by MergerSub of
the  transactions  contemplated  by this  Agreement  require  no action by or in
respect of, or filing with, any governmental body, agency, official or authority
other  than (a) the filing of a  certificate  of merger in  accordance  with the
Delaware Law, (b) compliance  with any applicable  requirements  of the HSR Act;
(c)  compliance  with any  applicable  requirements  of the  Exchange  Act;  (d)
compliance  with the  applicable  requirements  of the  Securities  Act; and (e)
compliance with any applicable foreign or state securities or Blue Sky laws.

         SECTION   4.04.   Non-contravention.   The   execution,   delivery  and
performance by MergerSub of this Agreement and the  consummation by MergerSub of
the  transactions  contemplated  hereby  do not and will not (a)  contravene  or
conflict with the  certificate  of  incorporation  or bylaws of  MergerSub,  (b)
assuming compliance with the matters referred to in Section 4.03,  contravene or
conflict  with any  provision  of law,  regulation,  judgment,  order or  decree
binding upon  MergerSub,  or (c)  constitute a default under or give rise to any
right of termination, cancellation or acceleration of any right or obligation of
MergerSub or to a loss of any benefit to which  MergerSub is entitled  under any
agreement, contract or other instrument binding upon MergerSub.

         SECTION 4.05. Disclosure Documents. (a) The information with respect to
MergerSub that MergerSub  furnishes to the Company in writing  specifically  for
use in any Company Disclosure  Document will not contain any untrue statement of
a material  fact or omit to state any material  fact  necessary in order to make
the statements made therein,  in the light of the circumstances under which they
were made, not misleading (i) in the case of the Company Proxy  Statement at the
time the Company Proxy Statement or any amendment or supplement thereto is first
mailed to  stockholders  of the Company,  at the time the  stockholders  vote on
adoption of this  Agreement and at the Effective  Time,  and (ii) in the case of
any Company Disclosure  Document other than the Company Proxy Statement,  at the
time of the filing thereof and at the time of any distribution thereof.

         (b) The MergerSub  Disclosure  Documents (as defined in Section  6.01),
when filed,  will comply as to form in all material respects with the applicable
requirements of the Securities Act and the Exchange Act and will not at the time
of the filing thereof, at the time of any distribution thereof or at the time of
the meeting of the  Company's  stockholders,  contain any untrue  statement of a
material  fact or  omit  to  state  any  material  fact  necessary  to make  the
statements made therein, in the light of the circumstances under which they were
made, not


<PAGE>



misleading,  provided,  that this  representation and warranty will not apply to
statements  or  omissions  in the  MergerSub  Disclosure  Documents  based  upon
information  furnished to MergerSub in writing by the Company  specifically  for
use therein.

         SECTION 4.06.  Finders' Fees.  Except for Donaldson,  Lufkin & Jenrette
Securities  Corporation ("DLJSC"), a copy of whose engagement agreement has been
provided to the Company  and whose fees will be paid by  MergerSub,  there is no
investment banker,  broker, finder or other intermediary which has been retained
by or is  authorized  to act on behalf of MergerSub who might be entitled to any
fee or commission from MergerSub or any of its affiliates  upon  consummation of
the transactions contemplated by this Agreement.

         SECTION  4.07.  Financing.  The  Company has  received  copies of (a) a
commitment letter dated May 4, 1997 from DLJ Merchant Banking Partners II, L.P.,
DLJ Offshore Partners II, C.V., DLJ Diversified Partners,  C.V., DLJ Funding II,
Inc., UK  Investment  Plan 1997 Partners and DLJ First ESC LLC pursuant to which
each of the foregoing has  committed,  subject to the terms and  conditions  set
forth therein, to purchase securities of MergerSub for an aggregate amount equal
to  $310,000,007,  (b) a letter  dated May 4, 1997 from DLJSC  pursuant to which
DLJSC  has  indicated  that it is  highly  confident  of its  ability  to  place
privately,  or underwrite in the public markets,  Senior  Subordinated  Notes of
DecisionOne Corporation,  a Delaware corporation ("Operating Co.") in the amount
of  $150,000,000,  and (c) a  commitment  letter  dated  April 30, 1997 from DLJ
Capital Funding, Inc. ("DLJ Senior Debt Fund") pursuant to which DLJ Senior Debt
Fund has committed,  subject to the terms and  conditions set forth therein,  to
enter into one or more credit agreements providing for loans to Operating Co. of
up to $575,000,000. As used in this Agreement, the aforementioned entities shall
hereinafter  be  referred to as the  "Financing  Entities."  The  aforementioned
credit  agreements and commitments to purchase equity securities of MergerSub or
Operating  Co.  shall  be  referred  to as the  "Financing  Agreements"  and the
financing  to be provided  thereunder  and under the  arrangements  described in
clause (b) above shall be referred to as the "Financing." The aggregate proceeds
of the Financing are in an amount sufficient to pay the Merger Consideration, to
repay all of the Company's and its Subsidiaries'  indebtedness together with any
interest,  premium or penalties  payable in connection  therewith,  to provide a
reasonable  amount of working  capital  financing  and to pay  related  fees and
expenses (collectively,  the "Required Amounts"). As of the date hereof, none of
the commitment  letters relating to the Financing  Agreements  referred to above
has been  withdrawn  and MergerSub  does not know of any facts or  circumstances
that may  reasonably be expected to result in any of the conditions set forth in
the commitment letters relating to the Financing Agreements not being satisfied.
MergerSub  believes  that the  Financing  will not create any  liability  to the
directors and  stockholders of the Company under any federal or state fraudulent
conveyance or transfer law.


<PAGE>



MergerSub  further  believes that,  upon the  consummation  of the  transactions
contemplated hereby, including, without limitation, the Financing, the Surviving
Corporation  (i)  will  not  become  insolvent,  (ii)  will  not  be  left  with
unreasonably  small  capital,  (iii)  will not have  incurred  debts  beyond its
ability to pay such debts as they  mature,  and (iv) the  capital of the Company
will not become impaired.

         SECTION 4.08. Capitalization. The authorized capital stock of MergerSub
consists of (i) 30,000,000  shares of MergerSub Common Stock, of which as of the
date hereof,  there were  outstanding 101 shares and (ii)  15,000,000  shares of
MergerSub  Preferred  Stock,  of which  as of the date  hereof  no  shares  were
outstanding. All outstanding shares of capital stock of MergerSub have been duly
authorized  and validly issued and are fully paid and  nonassessable.  As of the
moment  immediately  prior to the Effective Time,  9,782,609 shares of MergerSub
Common  Stock,  3,400,000  shares of  MergerSub  Preferred  Stock  (or,  in lieu
thereof,  Senior Discount Notes of MergerSub in an equivalent proceeds amount of
$85,000,000)  and MergerSub  Warrants to acquire  1,417,180  shares of MergerSub
Common  Stock at an  exercise  price of not less than $0.01 per  share,  will be
outstanding;  provided  that if any Shares are issued  after the date hereof but
prior to the  Effective  Time in respect of Options or  Warrants as set forth in
Section 1.04(a),  the number of MergerSub Warrants shall be increased to reflect
any such issuances.



                                    ARTICLE 5


                            COVENANTS OF THE COMPANY

         The Company agrees that:

         SECTION 5.01. Conduct of the Company.  Except as otherwise specifically
provided in this  Agreement,  from the date hereof to the  Effective  Time,  the
Board of Directors of the Company shall not approve or authorize any action that
would  allow  the  Company  and its  Subsidiaries  to carry on their  respective
businesses  other  than  in the  ordinary  and  usual  course  of  business  and
consistent  with past  practice or any action that would prevent the Company and
its  Subsidiaries  from using their best  efforts to (i)  preserve  intact their
respective present business organizations,  (ii) maintain in effect all federal,
state and local  licenses,  approvals  and  authorizations,  including,  without
limitation,  all  permits  that  are  required  for  the  Company  or any of its
Subsidiaries  to carry on its  business,  (iii) keep  available  the services of
their  respective  key officers and  employees  and (iv)  maintain  satisfactory
relationships  with their respective  customers,  lenders,  suppliers and others
having business  relationships with any of them. Without limiting the generality
of the  foregoing,  and  except  as  otherwise  specifically  provided  in  this
Agreement,  without  the  prior  written  consent  of  MergerSub,  prior  to the
Effective


<PAGE>



Time, the Board of Directors of the Company shall not, nor shall it authorize or
direct the Company or any Subsidiary, directly or indirectly, to:

          (a) adopt or propose any change in its certificate of incorporation or
bylaws (other than as contemplated by this Agreement);

          (b) except pursuant to existing agreements or arrangements (i) acquire
(by  merger,  consolidation  or  acquisition  of stock or assets)  any  material
corporation,  partnership or other business organization or division thereof, or
sell, lease or otherwise  dispose of a material  subsidiary or a material amount
of assets or securities;  (ii) make any investment  whether by purchase of stock
or securities,  contributions to capital or any property  transfer,  or purchase
any property or assets of any other individual or entity other than the purchase
of inventory,  supplies,  office  equipment or repairable  parts in the ordinary
course of business (it being understood that purchases pursuant to the agreement
referenced  in 8.02(i) are in the ordinary  course of business) in the aggregate
for an amount in excess of $3,000,000;  (iii) waive, release, grant, or transfer
any rights of material value;  (iv) modify or change in any material respect any
existing material license,  lease,  contract, or other document;  (v) other than
endorsements  of negotiable  instruments in the ordinary  course,  guaranties of
obligations of  Subsidiaries or guaranties or other  liabilities  related to the
purchases of inventory,  repairable  parts,  office  equipment or supplies which
arise  in the  ordinary  course  of  business,  assume,  guarantee,  endorse  or
otherwise  become  liable or  responsible  (whether  directly,  contingently  or
otherwise)  for the  obligations  of any other  Person  which,  are in excess of
$1,500,000  in  the  aggregate;   (vi)  make  any  loans,  advances  or  capital
contributions  to, or investments  in, any other Person which,  are in excess of
$1,000,000  in the  aggregate  or (vii)  make  any  capital  expenditure  which,
individually,  is in excess of $1,000,000  or, in the  aggregate  with any other
such expenditure, are in excess of $5,000,000;

          (c) take any action that would make any representation and warranty of
the Company hereunder  inaccurate in any respect at, or as of any time prior to,
the  Effective  Time,  or omit to take any action  necessary to prevent any such
representation  or  warranty  from being  inaccurate  in any respect at any such
time;

          (d) split,  combine or  reclassify  any shares of its  capital  stock,
declare,  set aside or pay any dividend or other distribution  (whether in cash,
stock or property or any  combination  thereof) in respect of its capital stock,
other than cash dividends and  distributions by a wholly owned subsidiary of the
Company to the  Company or to a  subsidiary  all of the  capital  stock which is
owned directly or indirectly by the Company, or redeem,  repurchase or otherwise
acquire  or  offer  to  redeem,  repurchase,  or  otherwise  acquire  any of its
securities or any securities of its subsidiaries;



<PAGE>



         (e) adopt or amend any bonus, profit sharing, compensation,  severance,
termination,   stock  option,   pension,   retirement,   deferred  compensation,
employment  or employee  benefit plan,  agreement,  trust,  plan,  fund or other
arrangement for the benefit and welfare of any director, officer or employee, or
(except  for  normal  increases  in the  ordinary  course of  business  that are
consistent  with past practices and that, in the  aggregate,  do not result in a
material  increase  in benefits  or  compensation  expense to the Company or any
Subsidiary)  increase in any manner the  compensation  or fringe benefits of any
director,  officer or employee or pay any benefit not  required by any  existing
plan or  arrangement  (including,  without  limitation,  the  granting  of stock
options or stock appreciation rights or the removal of existing  restrictions in
any benefit plans or agreements);

         (f)  revalue in any  material  respect any  significant  portion of its
assets,  including,  without limitation,  writing down the value of inventory in
any material manner or write-off of notes or accounts receivable in any material
manner;

          (g) pay,  discharge or satisfy any  material  claims,  liabilities  or
obligations (whether absolute,  accrued,  asserted or unasserted,  contingent or
otherwise)  other than the payment,  discharge or  satisfaction  in the ordinary
course of business,  consistent with past practices, of liabilities reflected or
reserved  against in the  consolidated  financial  statements  of the Company or
incurred in the ordinary course of business, consistent with past practices;

          (h) make any tax election with respect to or settle or compromise  any
material income tax liability;

          (i) take any action other than in the ordinary  course of business and
consistent   with  past  practices  with  respect  to  accounting   policies  or
procedures; or

          (j)   agree or commit to do any of the foregoing.

         SECTION 5.02.  Stockholder Meeting;  Proxy Material.  The Company shall
cause a meeting of its stockholders  (the "Company  Stockholder  Meeting") to be
duly called and held as soon as reasonably practicable for the purpose of voting
on the  approval  and adoption of this  Agreement  and the Merger.  The Board of
Directors of the Company shall, subject to its fiduciary duties as determined in
good faith and as advised by counsel,  recommend  approval  and adoption of this
Agreement and the Merger by the Company's stockholders.  In connection with such
meeting, the Company (a) shall promptly prepare and file with the SEC, shall use
its reasonable best efforts to have cleared by the SEC and shall thereafter mail
to its  stockholders  as promptly as practicable the Company Proxy Statement and
all other proxy materials for such meeting,  (b) subject to its fiduciary duties
as determined in good faith and as advised by counsel,  shall use its reasonable
best  efforts to obtain the  necessary  approvals  by its  stockholders  of this
Agreement and


<PAGE>



the  transactions  contemplated  hereby and (c) shall otherwise  comply with all
legal requirements applicable to such meeting.

         SECTION  5.03.  Access to  Information.  From the date hereof until the
Effective  Time,  the  Company  shall give  MergerSub,  its  counsel,  financial
advisors,  auditors  and other  authorized  representatives  full  access to the
offices,  properties,  books and  records of the  Company  and the  Subsidiaries
during  normal  business  hours,  will  furnish  to  MergerSub,  their  counsel,
financial advisors, auditors and other authorized representatives such financial
and operating data and other information as such Persons may reasonably  request
and will  instruct the Company's and its  Subsidiaries'  employees,  counsel and
financial  advisors to  cooperate  with  MergerSub in its  investigation  of the
business of the Company and the  Subsidiaries;  provided  that no  investigation
pursuant to this Section shall affect any  representation  or warranty  given by
the Company to MergerSub hereunder;  and provided,  further that any information
provided  to  MergerSub  pursuant to this  Section  5.03 shall be subject to the
Confidentiality Agreement dated as of March 19, 1997 between the Company and DLJ
Merchant Banking II, Inc. (the "Confidentiality Agreement").

         SECTION  5.04.  Other  Offers.  (a)  Neither the Company nor any of its
Subsidiaries shall (whether directly or indirectly  through advisors,  agents or
other  intermediaries),  nor  shall  the  Company  or any  of  its  Subsidiaries
authorize  or  permit  any  of  its  or  their  officers,   directors,   agents,
representatives,  advisors or Subsidiaries to, (i) solicit, initiate or take any
action knowingly to facilitate the submission of inquiries,  proposals or offers
from any Third Party (as defined below) (other than  MergerSub)  relating to (A)
any  acquisition  or purchase of 20% or more of the  consolidated  assets of the
Company and its Subsidiaries or of over 20% of any class of equity securities of
the Company or any of its  Subsidiaries,  (B) any tender offer (including a self
tender offer) or exchange  offer that if  consummated  would result in any Third
Party  beneficially  owning 20% or more of any class of equity securities of the
Company or any of its  Subsidiaries,  (C) any  merger,  consolidation,  business
combination,  sale of substantially all assets,  recapitalization,  liquidation,
dissolution  or  similar  transaction  involving  the  Company,  or  any  of its
Subsidiaries  whose assets,  individually  or in the aggregate,  constitute more
than 20% of the consolidated assets of the Company,  other than the transactions
contemplated by this Agreement, or (D) any other transaction the consummation of
which would, or could reasonably be expected to impede,  interfere with, prevent
or materially  delay the Merger or which would, or could  reasonably be expected
to, materially dilute the benefits to MergerSub of the transactions contemplated
hereby  (collectively,  "Acquisition  Proposals"),  or agree to or  endorse  any
Acquisition  Proposal,  or (ii) enter into or participate in any  discussions or
negotiations  regarding any of the foregoing,  or furnish to any Third Party any
information  with respect to its  business,  properties  or assets or any of the
foregoing,  or  otherwise  cooperate  in any way with,  or  knowingly  assist or
participate  in,  facilitate  or  encourage,  any effort or attempt by any Third
Party


<PAGE>



(other than  MergerSub) to do or seek any of the foregoing;  provided,  however,
that the foregoing shall not prohibit the Company (either directly or indirectly
through advisors,  agents or other  intermediaries) from (i) publicly disclosing
in a press release,  in a general  manner,  the Company's  permitted  activities
hereunder,    (ii)   furnishing   information   pursuant   to   an   appropriate
confidentiality  letter (which letter shall not be less favorable to the Company
in any material respect than the Confidentiality  Agreement, and a copy of which
shall be provided for informational  purposes only to MergerSub)  concerning the
Company and its businesses, properties or assets to a Third Party who has made a
bona fide  Acquisition  Proposal,  (iii) engaging in discussions or negotiations
with  such a Third  Party who has made a bona fide  Acquisition  Proposal,  (iv)
following receipt of a bona fide Acquisition Proposal,  taking and disclosing to
its  stockholders a position  contemplated  by Rule 14d-9 or Rule 14e-2(a) under
the  Exchange  Act or  otherwise  making  disclosure  to its  stockholders,  (v)
following  receipt  of a bona  fide  Acquisition  Proposal,  failing  to make or
withdrawing or modifying its  recommendation  referred to in Section 5.02 and/or
(vi) taking any non-appealable,  final action ordered to be taken by the Company
by any  court of  competent  jurisdiction  but in each case  referred  to in the
foregoing  clauses  (ii)  through  (vi)  only to the  extent  that the  Board of
Directors  of the  Company  shall have  concluded  in good faith on the basis of
advice  from  counsel  that such  action is  required  to  prevent  the Board of
Directors of the Company from breaching its fiduciary duties to the stockholders
of the Company under applicable law;  provided,  further,  that (A) the Board of
Directors  of the  Company  shall not take any of the  foregoing  actions  until
reasonable notice to MergerSub of its intent to take such action shall have been
give to MergerSub;  and (B) if the Board of Directors of the Company receives an
Acquisition Proposal, to the extent it may do so without breaching its fiduciary
duties as  advised by counsel  and as  determined  in good  faith,  and  without
violating any of the conditions of such Acquisition  Proposal,  then the Company
shall promptly inform MergerSub of the terms and conditions of such proposal and
the identity of the person making it.  Subject to the provisions of the previous
sentence, the Company shall immediately cease and cause its Subsidiaries and its
and  their  advisors,  agents  and  other  intermediaries  to cease  any and all
existing  activities,  discussions or negotiations  with any parties (other than
MergerSub) conducted heretofore with respect to any of the foregoing,  and shall
use its  reasonable  best  efforts to cause any such  parties in  possession  of
confidential information about the Company that was furnished by or on behalf of
the Company to return or destroy all such  information  in the possession of any
such party (other than  MergerSub) or in the  possession of any agent or advisor
of any such party. As used in this  Agreement,  the term "Third Party" means any
Person or "group," as described in Rule 13d- 5(b) promulgated under the Exchange
Act, other than MergerSub or any of its affiliates.


<PAGE>



          (b) If a Payment Event (as hereinafter  defined)  occurs,  the Company
shall pay to MergerSub, within two business days following such Payment Event, a
fee of $20,947,000.00.

          (c) "Payment Event" shall mean that at least one enumerated  event has
occurred in all of the following clauses (i)-(iii): (i) a Third Party shall have
made an Acquisition Proposal prior to the Company Stockholder Meeting, (ii) this
Agreement  shall  have been  terminated  pursuant  to any of  Sections  9.01(e),
9.01(f) or 9.01(g) and (iii) any Acquisition  Proposal  (whether or not proposed
prior to the Company  Stockholders  Meeting  and whether or not it involves  the
Third Party making the Acquisition  Proposal  referred to in Section  5.04(c)(i)
above) shall have been consummated within 12 months following the termination of
this Agreement.

         (d) Upon the  termination  of this  Agreement for any reason other than
(i) a termination by the Company pursuant to Section 9.01(c), (ii) a termination
by either  the  Company  or  MergerSub  pursuant  to  Section  9.01(a),  (iii) a
termination that follows a failure of the condition set forth in Section 8.01(e)
or Section  8.02(e) to be  satisfied,  or (iv) any  termination  that  follows a
refusal by MergerSub to consummate the Merger because Section 3.10(a) or 3.10(h)
is not true and  correct as of the  Effective  Time,  by reason of an event that
occurs  between  the date  hereof and the  Effective  Time,  the  Company  shall
reimburse  MergerSub and its  affiliates  not later than two business days after
submission  of  reasonable  documentation  thereof for 100% of their  documented
out-of-pocket fees and expenses (including,  without limitation,  the reasonable
fees and  expenses  of their  counsel and  investment  banking  fees),  actually
incurred by any of them or on their behalf in connection with this Agreement and
the  transactions  contemplated  hereby  and  the  arrangement,   obtaining  the
commitment  to  provide  or  obtaining   the  Financing  for  the   transactions
contemplated by this Agreement (including fees payable to the Financing Entities
and  their  respective  counsel)  provided  that the  aggregate  amount  payable
pursuant to this Section 5.04(d) shall not exceed $8,250,000;  provided further,
that (i) in the event that a fee is paid pursuant to Section  5.04(b) or (ii) in
the event of any  termination  of this  Agreement  which  follows  a refusal  of
MergerSub  to  consummate  the  Merger by reason of the  condition  set forth in
Section 8.01(c) or Section  8.02(b),  the aggregate  amount payable  pursuant to
this Section  5.04(d)  shall not include any  investment  banking fee payable to
DLJSC as disclosed  in Section  4.06 and the limit set forth in the  immediately
proceeding clause shall be reduced from $8,250,000 to $5,750,000.

          (e) The Company  acknowledges  that the  agreements  contained in this
Section  5.04 are an  integral  part of the  transactions  contemplated  by this
Agreement,  and that,  without these agreements,  MergerSub would not enter into
this Agreement; accordingly, if the Company fails to promptly pay any amount due
pursuant to this Section 5.04,  and, in order to obtain such payment,  the other
party commences a suit which results in a judgment against the Company for the


<PAGE>



fee or fees and expenses set forth in this Section 5.04,  the Company shall also
pay to  MergerSub  its costs  and  expenses  incurred  in  connection  with such
litigation.

     (f) Sections  5.04(b)-(e)  shall survive any termination of this Agreement,
however caused.

         SECTION 5.05.  Notices of Certain Events.  The Company shall promptly
notify MergerSub of:

          (a) any notice or other  communication  from any Person  alleging that
the  consent  of such  Person  is or may be  required  in  connection  with  the
transactions contemplated by this Agreement;

          (b) any  notice  or  other  communication  from  any  governmental  or
regulatory agency or authority in connection with the transactions  contemplated
by this Agreement; and

          (c)  any  actions,   suits,  claims,   investigations  or  proceedings
commenced or, to the best of its knowledge  threatened  against,  relating to or
involving or otherwise affecting the Company or any Subsidiary which, if pending
on the date of this  Agreement,  would have been required to have been disclosed
pursuant to Section 3.12 or which relate to the consummation of the transactions
contemplated by this Agreement.

         SECTION 5.06.  Resignation of Directors.  Prior to the Effective  Time,
the Company shall deliver to MergerSub evidence satisfactory to MergerSub of the
resignation of all directors of the Company effective at the Effective Time.

         SECTION  5.07.  Preferred  Stock.  Provided that  MergerSub  shall have
provided to Company  reasonably in advance of the first mailing to  stockholders
of the Company Proxy  Statement the terms thereof,  prior to the Effective Time,
the  Board of  Directors  of the  Company  shall  take all  necessary  action to
establish the terms of the Mirror  Preferred  Stock and file the  Certificate of
Designations  with the Delaware  Secretary of State,  all in accordance with the
applicable  provisions  of Delaware Law. The "Mirror  Preferred  Stock" shall be
Preferred Stock of the Company,  the terms of and certificate of designations of
which shall be identical in all respects (except the name of the Company) to the
terms of the  MergerSub  Preferred  Stock and the  certificate  of  designations
therefor.

         SECTION 5.08.  Solvency Advice.  The Company shall request an
independent advisor to deliver the advice contemplated by Section 8.03(a) as
promptly as practicable.




<PAGE>



                                    ARTICLE 6


                             COVENANTS OF MERGERSUB

         MergerSub agrees that:

         SECTION 6.01.  SEC Filings.  As soon as  practicable  after the date of
announcement  of the  execution of the Merger  Agreement,  MergerSub  shall file
(separately,  or as part of the  Company  Proxy  Statement)  with  the  SEC,  if
required,  a Rule 13E-3  Transaction  Statement  ("Transaction  Statement") with
respect to the Merger  (together  with any  supplements  or amendments  thereto,
collectively the "MergerSub  Disclosure  Documents").  MergerSub and the Company
each agrees to correct any  information  provided by it for use in the MergerSub
Disclosure  Documents  if and to the extent that it shall have  become  false or
misleading in any material respect. MergerSub agrees to take all steps necessary
to cause the MergerSub Disclosure Documents as so corrected to be filed with the
SEC and to be  disseminated  to holders  of  Shares,  in each case as and to the
extent  required by  applicable  federal  securities  laws.  The Company and its
counsel  shall be given  reasonable  opportunity  to review and  comment on each
MergerSub Disclosure Document prior to its being filed with the SEC.

         SECTION 6.02.  Voting of Shares.  MergerSub agrees to vote all Shares
beneficially owned by it in favor of adoption of this Agreement at the Company
Stockholder Meeting.

         SECTION  6.03.  Director and Officer  Liability.  (a) For a period of 6
years after the Effective Time, MergerSub shall cause the Surviving  Corporation
to indemnify and hold harmless the present and former  officers and directors of
the Company in respect of acts or  omissions  occurring  prior to the  Effective
Time to the extent provided under the Company's certificate of incorporation and
bylaws in effect on the date hereof; provided that such indemnification shall be
subject to any limitation  imposed from time to time under applicable law. For a
period of 6 years after the Effective Time,  MergerSub shall cause the Surviving
Corporation to provide officers' and directors'  liability  insurance in respect
of acts or omissions  occurring  prior to the Effective  Time covering each such
Person  currently  covered by the Company's  officers' and directors'  liability
insurance  policy on terms with respect to coverage and amount no less favorable
than those of such policy in effect on the date  hereof  (or, if such  insurance
policy  cannot be  obtained,  such  insurance  policy on terms  with  respect to
coverage and amount as  favorable as can be obtained,  subject to the proviso at
the  conclusion of this  sentence),  provided that in satisfying  its obligation
under this  Section,  MergerSub  shall not be obligated  to cause the  Surviving
Corporation  to pay  premiums  in  excess  of 125% of the  amount  per annum the
Company  paid in its last full fiscal year,  which amount has been  disclosed to
MergerSub.


<PAGE>



          (b)  In  furtherance  of  and  not  in  limitation  of  the  preceding
paragraph,  MergerSub agrees that the officers and directors of the Company that
are defendants in all litigation  commenced by  stockholders of the Company with
respect to (x) the performance of their duties as such officers and/or directors
under  federal  or state  law  (including  litigation  under  federal  and state
securities laws) and (y) the Merger, including,  without limitation, any and all
such  litigation  commenced on or after the date of this Agreement (the "Subject
Litigation") shall be entitled to be represented,  at the reasonable expenses of
the Company,  in the Subject  Litigation by one counsel (and Delaware counsel if
appropriate  and one  local  counsel  in each  jurisdiction  in  which a case is
pending) each of which counsel shall be selected by a plurality of such director
defendants;  provided  that the Company  shall not be liable for any  settlement
effected  without  its  prior  written  consent  (which  consent  shall  not  be
unreasonably  withheld)  and that a condition  to the  indemnification  payments
provided in Section  6.03(a) shall be that such  officer/director  defendant not
have  settled  any  Subject  Litigation  without  the  consent of the  Surviving
Corporation  (such consent not to be  unreasonably  withheld)  and, prior to the
Effective Time,  MergerSub;  and provided further that neither MergerSub nor the
Surviving   Corporation   shall   have   any   obligation   hereunder   to   any
officer/director  defendant when and if a court of competent  jurisdiction shall
ultimately  determine,  and such  determination  shall  have  become  final  and
non-appealable,  that indemnification of such officer/director  defendant in the
manner contemplated hereby is prohibited by applicable law.

         SECTION 6.04.  Employee  Plans and Benefit  Arrangements.  (a) From and
after the Effective Time,  subject to applicable law, the Surviving  Corporation
and its subsidiaries  will honor obligations of the Company and its Subsidiaries
incurred  prior to the  Effective  Time under all  existing  Employee  Plans and
Benefit Arrangements (as defined in Section 3.14).

          (b)  MergerSub  agrees that,  for at least one year from the Effective
Time, subject to applicable law, the Surviving  Corporation and its Subsidiaries
will  provide  benefits to their  employees  which will,  in the  aggregate,  be
comparable to those  currently  provided by the Company and its  subsidiaries to
their employees. Notwithstanding the foregoing, nothing herein shall obligate or
require the  Surviving  Corporation  or any of its  subsidiaries  to provide its
employees  with a plan or arrangement  similar to any equity based  compensation
plans  currently  maintained by the Company and nothing  herein shall  otherwise
limit the  Surviving  Corporation's  right to amend,  modify  or  terminate  any
Employee Plan or Benefit Arrangement, as defined in Section 3.14.

          (c) It is  MergerSub's  current  intention to maintain  the  Surviving
Corporation's  headquarters at its present  location or another  location in the
greater Philadelphia area.



<PAGE>



         SECTION  6.05.  Financing.  MergerSub  shall  use its  reasonable  best
efforts to obtain the Financing. In the event that any portion of such Financing
becomes unavailable,  regardless of the reason therefor,  MergerSub will use its
reasonable  best  efforts  to  obtain  alternative  financing  on  substantially
comparable or more favorable terms from other sources.

         SECTION 6.06. NASDAQ Listing.  MergerSub will not take any action,  for
at least  three  years  after the  Effective  Time of the  Merger,  to cause the
Company Stock to be de-listed from The NASDAQ National Market System ("NASDAQ");
provided,  however,  that  MergerSub may cause or permit the Company Stock to be
de-listed in connection with any transaction which results in the termination of
registration  of such  securities  under  Section 12 of the  Exchange  Act,  and
provided,  further,  that nothing in this Section 6.06 shall require the Company
to take any affirmative action to prevent the Company Stock from being de-listed
by NASDAQ if the Company Stock ceases to meet the applicable listing standards.

         SECTION  6.07.  Access to  Information.  From the date hereof until the
Effective Time, MergerSub shall give the Company and its independent advisor any
such  information  regarding  MergerSub  as  may be  necessary  to  permit  such
independent  advisor to render the advice to be delivered to the Company's Board
of Directors pursuant to Section 8.03(b).



                                    ARTICLE 7


                     COVENANTS OF MERGERSUB AND THE COMPANY

         The parties hereto agree that:

         SECTION 7.01. Best Efforts. Subject to the terms and conditions of this
Agreement,  each party will use its reasonable best efforts to take, or cause to
be taken,  all  actions  and to do, or cause to be done,  all things  necessary,
proper or advisable  under  applicable  laws and  regulations  to consummate the
transactions  contemplated by this Agreement. Each party shall also refrain from
taking, directly or indirectly,  any action contrary to or inconsistent with the
provisions of this Agreement,  including  action which would impair such party's
ability to consummate the Merger and the other transactions contemplated hereby.
Without limiting the foregoing, the Company and its Board of Directors shall use
their  reasonable best efforts to (a) take all action necessary so that no state
takeover  statute or similar  statute or regulation is or becomes  applicable to
the Merger or any of the other  transactions  contemplated by this Agreement and
(b) if any state  takeover  statute or similar  statute  or  regulation  becomes
applicable to any of the foregoing, take all reasonable action necessary so that
the Merger and the other


<PAGE>



transactions  contemplated  by this  Agreement may be consummated as promptly as
practicable  on the  terms  contemplated  by this  Agreement  and  otherwise  to
minimize  the effect of such statute or  regulation  on the Merger and the other
transactions contemplated by this Agreement.

         SECTION 7.02. Certain Filings.  (a) The Company and MergerSub shall use
their  respective  reasonable best efforts to take or cause to be taken, (i) all
actions necessary,  proper or advisable by such party with respect to the prompt
preparation  and filing with the SEC a  registration  statement on Form S-4 (the
"Registration  Statement"),  the Company Disclosure  Documents and the MergerSub
Disclosure  Documents,  (ii)  such  actions  as  may be  required  to  have  the
Registration  Statement  declared effective under the Securities Act and to have
the  Company  Proxy  Statement  cleared by the SEC,  in each case as promptly as
practicable, and (iii) such actions as may be required to have to be taken under
state  securities or applicable Blue Sky laws in connection with the issuance of
the securities contemplated hereby.

         (b) The Company agrees to provide,  and will cause its Subsidiaries and
its and their  respective  officers,  employees  and  advisors to  provide,  all
necessary  cooperation in connection with the arrangement of any financing to be
consummated  contemporaneous  with or at or after the  Closing in respect of the
transactions contemplated by this Agreement,  including without limitation,  (x)
participation  in  meetings,  due  diligence  sessions  and road shows,  (y) the
preparation of offering memoranda, private placement memoranda, prospectuses and
similar documents, and (z) the execution and delivery of any commitment letters,
underwriting  or  placement  agreements,  pledge and security  documents,  other
definitive  financing documents,  or other requested  certificates or documents,
including a  certificate  of the chief  financial  officer of the  Company  with
respect to solvency  matters,  comfort letters of accountants and legal opinions
as may be requested by MergerSub; provided that the form and substance of any of
the material  documents  referred to in clause (y), and the terms and conditions
of any of the material agreements and other documents referred to in clause (z),
shall be substantially consistent with the terms and conditions of the financing
required to satisfy the condition precedent set forth in Section 8.01(e).

         (c) The Company and MergerSub  shall  cooperate with one another (i) in
determining  whether  any  action  by or in  respect  of, or  filing  with,  any
governmental body, agency or official, or authority is required, or any actions,
consents,  approvals or waivers are required to be obtained  from parties to any
material  contracts,  in connection with the  consummation  of the  transactions
contemplated by this Agreement (including the Financing) and (ii) in seeking any
such  actions,  consents,  approvals  or  waivers  or making  any such  filings,
furnishing information required in connection therewith or with the Registration
Statement, the Company Disclosure Documents and MergerSub Disclosure


<PAGE>



Documents and seeking timely to obtain any such actions, consents,  approvals or
waivers.

         SECTION  7.03.  Public  Announcements.  MergerSub  and the Company will
consult  with each other before  issuing any press  release or making any public
statement  with  respect to this  Agreement  and the  transactions  contemplated
hereby and, except for any press release or public  statement as may be required
by  applicable  law  or any  listing  agreement  with  any  national  securities
exchange,  will  not  issue  any such  press  release  or make  any such  public
statement prior to such consultation.

         SECTION 7.04. Further Assurances.  At and after the Effective Time, the
officers and  directors  of the  Surviving  Corporation  will be  authorized  to
execute and deliver, in the name and on behalf of the Company or MergerSub,  any
deeds, bills of sale,  assignments or assurances and to take and do, in the name
and on behalf of the Company or MergerSub, any other actions and things to vest,
perfect or confirm of record or otherwise in the Surviving  Corporation  any and
all right, title and interest in, to and under any of the rights,  properties or
assets of the Company acquired or to be acquired by the Surviving Corporation as
a result of, or in connection with, the Merger.

                                    ARTICLE 8


                            CONDITIONS TO THE MERGER

         SECTION 8.01.  Conditions to the Obligations of Each Party.  The
obligations of the Company and MergerSub to consummate the Merger are
subject to the satisfaction of the following conditions:

          (a) this Agreement shall have been adopted by the  stockholders of the
Company in accordance with Delaware Law;

          (b)   any applicable waiting period under the HSR Act relating to the
Merger shall have expired or been terminated;

          (c) no provision of any  applicable law or regulation and no judgment,
order,  decree or injunction  shall prohibit or restrain the consummation of the
Merger;  provided,  however,  that the Company and MergerSub  shall each use its
reasonable best efforts to have any such judgment,  order,  decree or injunction
vacated; and

          (d) all consents,  approvals and licenses of any governmental or other
regulatory  body  required  in  connection  with  the  execution,  delivery  and
performance of this  Agreement and for the Surviving  Corporation to conduct the
business of the Company in substantially the manner now conducted, shall have


<PAGE>



been  obtained,  unless the  failure to obtain  such  consents,  authorizations,
orders or approvals would not have a Material Adverse Effect after giving effect
to the transactions contemplated by this Agreement (including the Financing);

          (e) the  funds in an  amount at least  equal to the  Required  Amounts
shall  have  been made  available  to  MergerSub  and/or  Operating  Co. as
contemplated in Section 4.07; and

         (f) the Registration  Statement shall have been declared  effective and
no stop order suspending the  effectiveness of the Registration  Statement shall
be in effect and no  proceedings  for such  purpose  shall be pending  before or
threatened by the SEC.

         SECTION  8.02.   Conditions  to  the  Obligations  of  MergerSub.   The
obligations   of  MergerSub  to  consummate   the  Merger  are  subject  to  the
satisfaction of the following further conditions:

          (a) the Company shall have  performed in all material  respects all of
its  obligations  hereunder  required to be  performed  by it at or prior to the
Effective Time, the  representations  and warranties of the Company contained in
this Agreement and in any certificate or other writing  delivered by the Company
pursuant  hereto  shall  be  true  in  all  material  respects  at and as of the
Effective Time (provided that  representations  made as of a specific date shall
be  required  to be true as of such date only) as if made at and as of such time
and MergerSub shall have received a certificate  signed by any Vice President of
the Company to the foregoing effect;

          (b)  There  shall  not be  instituted  or  pending  (x) any  action or
proceeding by any  government or  governmental  authority or agency,  or (y) any
action or proceeding by any other  person,  that has a reasonable  likelihood of
success,  in any case  referred  to in clauses  (x) or (y),  before any court or
governmental authority or agency, (i) challenging or seeking to make illegal, to
delay materially or otherwise directly or indirectly to restrain or prohibit the
consummation  of the Merger or seeking to obtain  material  damages or otherwise
directly  or  indirectly  relating  to the  transactions  contemplated  by  this
Agreement,  (ii)  seeking to  restrain or prohibit  MergerSub's  (including  its
Subsidiaries  and  affiliates)  ownership  or  operation  of all or any material
portion of the business or assets of the Company and its Subsidiaries,  taken as
a whole,  or to compel  MergerSub or any of its  Subsidiaries  or  affiliates to
dispose of or hold  separate  all or any  material  portion of the  business  or
assets of the Company and its Subsidiaries,  taken as a whole,  (iii) seeking to
impose or confirm material limitations on the ability of MergerSub or any of its
Subsidiaries or affiliates to effectively  control the business or operations of
the Company and its  Subsidiaries,  taken as a whole, or effectively to exercise
full rights of  ownership  of the Shares or Company  Stock,  including,  without
limitation, the right to vote any Shares or Company Stock acquired or


<PAGE>



owned by  MergerSub  or any of its  Subsidiaries  or  affiliates  on all matters
properly  presented to the  Company's  stockholders,  or (iv) seeking to require
divestiture by MergerSub or any of its  Subsidiaries or affiliates of any Shares
or Company  Stock,  and no court,  arbitrator or  governmental  body,  agency or
official shall have issued any judgment, order, decree or injunction,  and there
shall not be any statute,  rule or  regulation,  that,  in the sole  judgment of
MergerSub  is  likely,  directly  or  indirectly,   to  result  in  any  of  the
consequences referred to in the preceding clauses (i) through (iv);

          (c)  MergerSub  shall have  received all  documents it may  reasonably
request  relating to the existence of the Company and the  Subsidiaries  and the
authority  of the  Company  for  this  Agreement,  all  in  form  and  substance
satisfactory to MergerSub;

          (d) the holders of not more than 3% of the  outstanding  Shares  shall
have demanded appraisal of their Shares in accordance with Delaware Law;

          (e)   MergerSub shall be reasonably satisfied that the Merger will be
recorded as a "recapitalization" for financial reporting purposes;

          (f) MergerSub  shall have received  undertakings  in writing from each
person,  if any, who  according to counsel for the Company  might  reasonably be
considered  "affiliates" of the Company within the meaning of Rule 145(c) of the
SEC pursuant to the Securities Act (each, an "Affiliate"),  in each case in form
and substance satisfactory to counsel for MergerSub providing (i) such Affiliate
will  notify  MergerSub  in  writing  before  offering  for sale or  selling  or
otherwise  disposing of any shares of Company Stock owned by such  Affiliate and
(ii) no such  sale or other  disposition  shall be made  unless  and  until  the
Affiliate  has  supplied to  MergerSub  an opinion of counsel for the  Affiliate
(which opinion and counsel shall be reasonably satisfactory to MergerSub) to the
effect that such transfer is not in violation of the Securities Act;

          (g) the  Registration  Rights  Agreement dated as of October 20, 1995,
entered into among the Company and the Significant  Security Holders (as defined
therein), shall have been amended in the manner previously agreed;

         (h) The certificate of designation for the Mirror Preferred Stock shall
have been accepted for filing by the Delaware Secretary of State; and

         (i) Total  indebtedness  (long and short  term) of the  Company and its
Subsidiaries as of the Effective Time,  excluding any indebtedness  attributable
to "Phase II" as defined in the Agreement for Services for End-Of-Life Inventory
Management  dated as of June 7, 1996 between  Operating Co. and Compaq  Computer
Corporation ("Attributable Indebtedness") shall not exceed


<PAGE>



$240,000,000 and shall not exceed $255,000,000 including Attributable
Indebtedness.

         SECTION  8.03.   Condition  to  the  Obligation  of  the  Company.  The
obligation  of  the  Company  to  consummate   the  Merger  is  subject  to  the
satisfaction of the following further conditions:

         (a) MergerSub shall have performed in all material  respects all of its
obligations  hereunder  required  to be  performed  by it at  or  prior  to  the
Effective  Time, the  representations  and warranties of MergerSub  contained in
this Agreement and in any  certificate  or other writing  delivered by either of
them  pursuant  hereto shall be true in all  material  respects at and as of the
Effective  Time  (except  for  any  inaccuracies  in  such  representations  and
warranties  that are solely due to an action  taken after the date hereof of the
type described in Section 5.01 which is taken  specifically  in accordance  with
Section 5.01) (provided that representations made as of a specific date shall be
required  to be true as of such date only) as if made at and as of such time and
the Company shall have received a  certificate  signed by any Vice  President of
MergerSub to the foregoing effect; and

          (b) The Board of Directors of the Company shall have received  advice,
reasonably satisfactory to the Board, from an independent advisor confirming the
belief of MergerSub set forth in the last sentence of Section 4.07.

                                    ARTICLE 9

                                   TERMINATION

         SECTION 9.01.  Termination.  This Agreement may be terminated and the
Merger may be abandoned at any time prior to the Effective Time
(notwithstanding any approval of this Agreement by the stockholders of the
Company):

           (a)  by mutual written consent of the Company and MergerSub;

           (b) by either the  Company or  MergerSub,  if the Merger has not been
consummated  by the  later of (x) the  earlier  of  September  15,  1997 and ten
business days after the Company  Stockholders  Meeting, and (y) August 15, 1997,
provided  that the party seeking to exercise such right is not then in breach in
any material respect of any of its obligations under this Agreement;

           (c) by either the Company or MergerSub,  if MergerSub (in the case of
termination  by the  Company),  or the  Company (in the case of  termination  by
MergerSub)  shall have breached in any material  respect any of its  obligations
under this Agreement or any representation and warranty of MergerSub (in the


<PAGE>



case of  termination  by the Company) or the Company (in the case of termination
by MergerSub)  shall have been incorrect in any material respect when made or at
any time prior to the Closing;

           (d) by either the Company or MergerSub,  if there shall be any law or
regulation that makes consummation of the Merger illegal or otherwise prohibited
or if any  judgment,  injunction,  order or decree  enjoining  MergerSub  or the
Company from  consummating the Merger is entered and such judgment,  injunction,
order or decree shall become final and nonappealable;

           (e) by MergerSub if the Board of Directors of the Company  shall have
withdrawn or modified or amended, in a manner adverse to MergerSub, its approval
or  recommendation of this Agreement and the Merger or its  recommendation  that
stockholders of the Company adopt and approve this Agreement and the Merger,  or
approved,  recommended or endorsed any proposal for a transaction other than the
Merger  (including a tender or exchange  offer for Shares) or if the Company has
failed  to call the  Company  Stockholders  Meeting  or failed  as  promptly  as
reasonably practicable after the Registration Statement is declared effective to
mail the Company  Proxy  Statement to its  stockholders  or failed to include in
such statement the recommendation referred to above;

         (f) by the  Company  if  prior  to the  Effective  Time  the  Board  of
Directors  of the Company  shall have  withdrawn  or  modified or amended,  in a
manner adverse to MergerSub,  its approval or  recommendation  of this Agreement
and the Merger or its recommendation  that stockholders of the Company adopt and
approve this  Agreement and the Merger in order to permit the Company to execute
a definitive  agreement providing for the acquisition of the Company or in order
to approve a tender or exchange  offer for any or all of the  Shares,  in either
case, as determined by the Board of Directors of the Company to be on terms more
favorable to the Company's  stockholders  than the Merger from a financial point
of view, provided that the Company shall be in compliance with Section 5.04;

           (g)  by  either  the  Company  or  MergerSub   if,  at  a  duly  held
stockholders  meeting of the  Company or any  adjournment  thereof at which this
Agreement and the Merger is voted upon, the requisite  stockholder  adoption and
approval shall not have been obtained.

         The party  desiring to terminate  this  Agreement  pursuant to Sections
9.01(b)-(g)  shall give written notice of such termination to the other party in
accordance with Section 10.01.

         SECTION 9.02.  Effect of Termination.  If this Agreement is terminated
pursuant to Section 9.01, this Agreement shall become void and of no effect with


<PAGE>



no  liability  on the part of any  party  hereto,  except  that  the  agreements
contained  in  Sections  5.04(b)-(f)  and 10.04 shall  survive  the  termination
hereof.



                                   ARTICLE 10

                                  MISCELLANEOUS

     SECTION 10.01.  Notices. All notices,  requests and other communications to
any party hereunder shall be in writing (including  telecopy or similar writing)
and shall be given,

         if to MergerSub, to:

                  Peter T. Grauer
                  C/O DLJ Merchant Banking II, Inc.
                  277 Park Avenue
                  New York, New York 10172
                  Telecopy: 212-892-7552

                  with a copy to:

                  George R. Bason, Jr.
                  Davis Polk & Wardwell
                  450 Lexington Avenue
                  New York, New York 10017
                  Telecopy: (212) 450-4800

                  if to the Company, to:

                  Thomas M. Molchan
                  DecisionOne Holdings Corp.
                  50 East Swedesford Road
                  Frazer, PA 19355
                  Telecopy: (610) 408-3820

                  with a copy to:

                  David R. King
                  Morgan, Lewis & Bockius LLP
                  2000 One Logan Square
                  Philadelphia, PA 19103-6993
                  Telecopy: (215) 963-5299



<PAGE>



or such other address or telecopy number as such party may hereafter specify for
the purpose by notice to the other parties hereto. Each such notice,  request or
other  communication  shall be  effective  (a) if given by  telecopy,  when such
telecopy is transmitted to the telecopy number specified in this Section and the
appropriate  telecopy  confirmation  is  received  or (b) if given by any  other
means, when delivered at the address specified in this Section.

         SECTION  10.02.   Survival  of  Representations  and  Warranties.   The
representations  and  warranties  and  agreements  contained  herein  and in any
certificate  or other writing  delivered  pursuant  hereto shall not survive the
Effective Time or the  termination  of this Agreement  except for the agreements
set forth in Sections 6.03, 6.04, 6.06 and 7.04 which will survive the Effective
Time and  Sections  5.04(b)-(f)  and 10.04 which will  survive  any  termination
hereof.

         SECTION  10.03.  Amendments;  No  Waivers.  (a) Any  provision  of this
Agreement may be amended or waived prior to the Effective  Time if, and only if,
such amendment or waiver is in writing and signed,  in the case of an amendment,
by the Company and  MergerSub or in the case of a waiver,  by the party  against
whom the waiver is to be  effective;  provided  that after the  adoption of this
Agreement by the stockholders of the Company, no such amendment or waiver shall,
without  the  further  approval  of such  stockholders,  alter or change (i) the
amount or kind of  consideration  to be received  in exchange  for any shares of
capital stock of the Company,  (ii) any term of the certificate of incorporation
of the  Surviving  Corporation  or (iii) any of the terms or  conditions of this
Agreement if such alteration or change would adversely affect the holders of any
shares of capital stock of the Company.

          (b) No failure or delay by any party in exercising any right, power or
privilege  hereunder  shall operate as a waiver  thereof nor shall any single or
partial  exercise  thereof preclude any other or further exercise thereof or the
exercise of any other right, power or privilege.  The rights and remedies herein
provided  shall be  cumulative  and not  exclusive  of any  rights  or  remedies
provided by law.

         SECTION 10.04. Expenses.  Except as provided in Section 5.04, all costs
and expenses  incurred in connection  with this Agreement shall be paid by the
party incurring such cost or expense.

         SECTION 10.05. Successors and Assigns;  Benefit. The provisions of this
Agreement  shall be binding upon and inure to the benefit of the parties  hereto
and their respective successors and assigns,  provided that no party may assign,
delegate  or  otherwise  transfer  any of its rights or  obligations  under this
Agreement  without  the  consent of the other  parties  hereto.  Nothing in this
Agreement,  expressed  or  implied,  shall  confer on any Person  other than the
parties  hereto,  and their  respective  successors  and  assigns,  any  rights,
remedies,  obligations,  or  liabilities  under or by reason of this  Agreement,
except that the present and former


<PAGE>



officers and directors of the Company shall have the rights set forth in Section
6.03 hereof.

         SECTION 10.06.  Governing Law.  This Agreement shall be construed in
accordance with and governed by the law of the State of Delaware, without
reference to the conflicts of laws rules thereof.

         SECTION  10.07.  Counterparts;  Effectiveness.  This  Agreement  may be
signed in any number of counterparts,  each of which shall be an original,  with
the same  effect as if the  signatures  thereto  and  hereto  were upon the same
instrument.  This Agreement shall become  effective when each party hereto shall
have received counterparts hereof signed by all of the other parties hereto.

         Knowledge Defined.  When used with respect to the Company,
"knowledge" means the actual knowledge of any of the following officers of the
Company or any of their successors: Kenneth Draeger, Stephen Felice, Thomas
Fitzpatrick and Thomas Molchan.


<PAGE>


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

                                            DECISIONONE HOLDINGS CORP.


                                            By:   /s/ Kenneth Draeger
                                                  Name:  Kenneth Draeger
                                                  Title: Chief Executive Officer

                                            QUAKER HOLDING CO.



                                            By:   /s/ Peter T. Grauer
                                                  Name:    Peter T. Grauer
                                                  Title:   President


                                 CONFORMED COPY
                                    Exhibit 3






                             SUBSCRIPTION AGREEMENT

                                   dated as of

                                 August 7, 1997

                                      among

                               QUAKER HOLDING CO.

                                       and

                             THE BUYERS NAMED HEREIN

                        relating to the purchase and sale

                                       of

                                  Common Stock

                                       of

                               Quaker Holding Co.
<PAGE>
<TABLE>
<CAPTION>
                                        TABLE OF CONTENTS
<S>                                                                                            <C>
                                                                                               Page
                                            ARTICLE 1
                                           DEFINITIONS

SECTION 1.01.  Definitions......................................................................1

                                            ARTICLE 2
                                        PURCHASE AND SALE

SECTION 2.01.  Purchase and Sale................................................................3
SECTION 2.02.  Closing..........................................................................3

                                            ARTICLE 3
                            REPRESENTATIONS AND WARRANTIES OF SELLER

SECTION 3.01.  Corporate Existence and Power....................................................4
SECTION 3.02.  Corporate Authorization..........................................................4
SECTION 3.03.  Governmental Authorization.......................................................5
SECTION 3.04.  Noncontravention.................................................................5
SECTION 3.05.  Capitalization and Voting Rights.................................................5
SECTION 3.06.  Valid Issuance of Common Stock...................................................6
SECTION 3.07.  Litigation.......................................................................6
SECTION 3.08.  Brokers or Finders' Fees.........................................................6
SECTION 3.09.  Newly Formed Corporation.........................................................6
SECTION 3.10.  Meaning of Seller................................................................6


                                            ARTICLE 4
                            REPRESENTATIONS AND WARRANTIES OF BUYERS

SECTION 4.01.  Existence and Power..............................................................7
SECTION 4.02.  Authorization....................................................................7
SECTION 4.03.  Governmental Authorization.......................................................7
SECTION 4.04.  Purchase for Investment..........................................................7
SECTION 4.05.  Private Placement................................................................7
SECTION 4.06.  Litigation.......................................................................9
SECTION 4.07.  Brokers or Finders' Fees.........................................................9

                                            ARTICLE 5
                                      CONDITIONS TO CLOSING

SECTION 5.01.  Conditions to Obligations of Each Buyer and Seller...............................9
SECTION 5.02.  Conditions to Obligation of Each Buyer...........................................9
SECTION 5.03.  Conditions to Obligation of Seller..............................................10


<PAGE>

                                            ARTICLE 6
                                    SURVIVAL; INDEMNIFICATION

SECTION 6.01.  Survival........................................................................10
SECTION 6.02.  Indemnification.................................................................11
SECTION 6.03.  Procedures and Third Party Claims...............................................11
SECTION 6.04.  Calculation of Damages..........................................................12
SECTION 6.05.  Exclusivity.....................................................................13
                                                                                               --

                                            ARTICLE 7
                                           TERMINATION

SECTION 7.01.  Grounds for Termination.........................................................13
SECTION 7.02.  Effect of Termination...........................................................13

                                            ARTICLE 8
                                          MISCELLANEOUS

SECTION 8.01.  Notices.........................................................................14
SECTION 8.02.  Amendments and Waivers..........................................................15
SECTION 8.03.  Expenses........................................................................15
SECTION 8.04.  Successors and Assigns..........................................................15
SECTION 8.05.  Governing Law...................................................................15
SECTION 8.06.  Jurisdiction....................................................................15
SECTION 8.07.  Waiver Of Jury Trial............................................................16
SECTION 8.08.  Counterparts; Third Party Beneficiaries.........................................16
SECTION 8.09.  Entire Agreement................................................................16
SECTION 8.10.  Captions........................................................................16
SECTION 8.11.  Severability....................................................................16
SECTION 8.12.  Interpretation..................................................................16


Schedule A            Schedule of Investors
Exhibit A             Certificate of Incorporation
</TABLE>
<PAGE>
                             SUBSCRIPTION AGREEMENT


         AGREEMENT  dated as of August 7, 1997  between  Quaker  Holding  Co., a
Delaware  corporation  ("Seller"),  and the  Persons  named on Schedule A hereto
(each a "Buyer" and collectively, the "Buyers").



                                 W  I  T  N  E  S  S  E  T  H :

         WHEREAS,  the  Seller  has  agreed to merge  with and into  DecisionOne
Holdings  Corp.  (the  "Company") on the terms and  conditions  set forth in the
Agreement  and Plan of Merger  dated as of May 4, 1997  (the  "Merger")  between
Seller and the Company (as subsequently amended, the "Merger Agreement");

         WHEREAS, to finance, in part, the payment of the consideration  payable
in the Merger,  Seller intends to issue shares of common stock,  par value $0.01
per share (the "Common Stock" or the "Securities");

         WHEREAS,  all  of the  outstanding  capital  stock  of  the  Seller  is
currently  owned  by DLJ  Merchant  Banking  Partners  II,  L.P.  ("DLJMB")  and
affiliated funds and entities (collectively, the "DLJMB Funds");

         WHEREAS, certain institutional investors wish to invest in the Seller
incident to the Merger;

         WHEREAS,  Seller  desires to issue and sell the Common Stock to each of
the Buyers,  and each of the Buyers  desires to purchase  the Common  Stock from
Seller, upon the terms and subject to the conditions hereinafter set forth;

         The parties hereto agree as follows:



                                            ARTICLE 1


                                           DEFINITIONS

     SECTION 1.01.  Definitions.  (a) The following terms, as used herein,  have
the following meanings:

         "Affiliate"  means,  with  respect  to any  Person,  any  other  Person
directly or indirectly controlling,  controlled by, or under common control with
such Person.

         "Closing Date" means the date of the Closing.


<PAGE>



         "Common Share" means one share of Common Stock.

         "Investors'  Agreement" means the Investors'  Agreement dated as of the
date hereof among Quaker  Holding Co., DLJ Merchant  Banking  Partners II, L.P.,
DLJ Merchant Banking  Partners II-A,  L.P., DLJ Offshore  Partners II, C.V., DLJ
Diversified  Partners,  L.P., DLJ  Diversified  Partners-A,  L.P., DLJ Millenium
Partners, L.P., DLJ Funding II, Inc., DLJ EAB Partners, L.P., UK Investment Plan
1997 Partners,  DLJ First ESC, LLC, and certain other shareholders listed on the
signature pages thereto.

         "Lien"  means,  with  respect to any property or asset,  any  mortgage,
lien,  pledge,  charge,  security  interest  or  encumbrance  in respect of such
property or asset.

         "1934 Act" means the Securities  Exchange Act of 1934, as amended,  and
the rules and regulations promulgated thereunder.

         "1933 Act" means the Securities Act of 1933, as amended,  and the rules
and regulations promulgated thereunder.

         "Person"  means  an  individual,   corporation,   partnership,  limited
liability company, association, trust or other entity or organization, including
a government or political subdivision or an agency or instrumentality thereof.

         "Tax"  means,  with  respect  to any  Person,  any net income  tax,  or
franchise tax based on net income  including any  alternative  or add-on minimum
tax, together with any interest,  penalty,  addition to tax or additional amount
due from such Person imposed by any governmental authority (domestic or foreign)
responsible for the imposition of any such tax.

         "Tax Benefit" means any deduction, amortization,  exclusion from income
or other allowance.

         "Transaction Documents" means this Agreement, the Merger Agreement
and the Investors' Agreement.

          (b)   Each of the following terms is defined in the Section set forth
opposite such term:


Term                                                            Section

Accredited Investor                                             4.06(h)
Certificate of Incorporation                                    3.08
Claim                                                           6.03
<PAGE>
Closing                                                         2.02
Common Stock                                                    Recitals
Company                                                         Recitals
Damages                                                         6.02
DLJMB                                                           Recitals
DLJMB Funds                                                     Recitals
Indemnified Party                                               6.03
Indemnifying Party                                              6.03
Purchase Price                                                  2.01
Securities                                                      Recitals
Third Party Claim                                               6.03


                                            ARTICLE 2

                                        PURCHASE AND SALE

         SECTION  2.01.  Purchase  and Sale.  Upon the terms and  subject to the
conditions of this Agreement, Seller agrees to issue and sell to each Buyer, and
each Buyer agrees, severally and not jointly, to purchase from Seller the Common
Stock set forth  opposite such Buyer's name on Schedule A hereto at the Closing.
The purchase price for the Common Stock (the "Purchase  Price") is the amount in
cash  specified  on  Schedule  A hereto.  The  Purchase  Price  shall be paid as
provided in Section 2.02.

         SECTION 2.02. Closing.  The closing (the "Closing") of the purchase and
sale of the Common Stock hereunder shall take place at the offices of Davis Polk
& Wardwell,  450 Lexington Avenue, New York, New York, as soon as possible,  but
in no event later than five business days, after  satisfaction of the conditions
set forth in  Article 5, or at such other time or place as Buyers and Seller may
agree. At the Closing:

          (a) Each  Buyer  shall  deliver to Seller,  in  immediately  available
funds,  the  Aggregate  Purchase  Price set forth  opposite such Buyer's name on
Schedule A hereto,  by wire transfer (or other means acceptable to Seller) to an
account of Seller with a bank in New York City  designated by Seller,  by notice
to such Buyer, not later than two business days prior to the Closing Date.

          (b) Seller  shall  deliver to each Buyer  certificates  for the Common
Shares duly registered in the name of such Buyer.

          (c) If the  Closing  has  occurred  but the Merger is not  consummated
prior to the close of business  on Friday,  August 8, 1997,  then  Seller  shall
immediately


<PAGE>



deliver to each Buyer,  against delivery by such Buyer of the stock certificates
representing  the shares of Common Stock purchased by such Buyer,  the Aggregate
Purchase  Price paid to Seller by such Buyer (as set forth opposite such Buyer's
name on Schedule A hereto), and this Agreement shall thereupon be terminated.

                                            ARTICLE 3


                            REPRESENTATIONS AND WARRANTIES OF SELLER

         Seller  represents and warrants to each Buyer as of the date hereof and
as of the Closing Date that:

         SECTION 3.01.  Corporate  Existence and Power.  Seller is a corporation
duly  incorporated,  validly existing and in good standing under the laws of its
jurisdiction of incorporation  and has all corporate powers and all governmental
licenses,  authorizations,  permits, consents and approvals required to carry on
its business as now conducted and as proposed to be conducted.

         SECTION 3.02.  Corporate  Authorization.  The  execution,  delivery and
performance by Seller of each of the Transaction  Documents and the consummation
of the transactions  contemplated hereby and thereby (including the issuance and
sale of the Common  Stock) are within  Seller's  corporate  powers and have been
duly authorized by all necessary corporate action on the part of Seller. Each of
the Transaction  Documents  constitutes a valid and binding agreement of Seller,
enforceable  against Seller in accordance with its respective terms,  except (i)
as limited by the applicable bankruptcy, insolvency, reorganization, moratorium,
and other laws of general application affecting enforcement or creditors' rights
generally,  or (ii) as limited by laws relating to the  availability of specific
performance, injunctive relief, or other equitable remedies.

         SECTION 3.03. Governmental Authorization.  The execution,  delivery and
performance by Seller of each of the Transaction  Documents and the consummation
of the transactions  contemplated hereby and thereby require no order,  license,
consent,  authorization  or  approval  of, or  exemption  by, or action by or in
respect of, or notice to, or filing or registration with, any governmental body,
agency or official except such as have been obtained.

         SECTION 3.04. Noncontravention. The execution, delivery and performance
by Seller  of each of the  Transaction  Documents  and the  consummation  of the
transactions contemplated hereby and thereby do not and will not (i) violate the
certificate of  incorporation  or bylaws of Seller,  (ii) violate any applicable
law, rule, regulation,  judgment, injunction, order or decree, (iii) require any
consent or other action by any Person  under,  constitute a default  under (with
due notice or lapse of time or both),  or give rise to any right of termination,
cancellation  or  acceleration of any right or obligation of Seller or to a loss
of any benefit to which Seller is entitled  under any provision of any agreement
or other


<PAGE>



instrument  binding upon Seller or any of Seller's  assets or properties or (iv)
result in the creation or  imposition  of any  material  Lien on any property or
asset of Seller.

         SECTION 3.05.  Capitalization  and Voting  Rights.  (a) The  authorized
capital stock of the Seller  consists of  30,000,000  shares of Common Stock and
15,000,000  shares of preferred stock, and the outstanding  capital stock of the
Seller  immediately  prior to the  Closing is 101 shares of Common  Stock and no
shares of preferred stock. The rights,  privileges and preferences of the Common
Stock are set  forth in the  Certificate  of  Incorporation  attached  hereto as
Exhibit A (the "Certificate of Incorporation").

         (b) Immediately  following the Closing the outstanding capital stock of
the Seller  will be  10,918,979  shares of Common  Stock.  148,400  warrants  to
purchase  281,960 shares of Common Stock will be issued shortly after Closing to
purchasers of Seller's 11 1/2% Senior Discount Debentures due 2008.

         (c) Except as set forth in this Section 3.05 there are, and immediately
after the Closing there will be, no  outstanding  (i) shares of capital stock or
voting securities of the Seller,  (ii) securities of the Seller convertible into
or exchangeable for shares of capital stock or voting  securities of the Seller,
(iii) options or other rights to acquire from the Seller, or other obligation of
the  Seller to  issue,  any  capital  stock,  voting  securities  or  securities
convertible into or exchangeable  for capital stock or voting  securities of the
Seller or (iv) other than as expressly permitted in the Transaction Documents or
employment plans, no obligation of the Seller to repurchase or otherwise acquire
or retire any shares of capital stock or any convertible  securities,  rights or
options of the type described in (i), (ii), or (iii).

         SECTION  3.06.  Valid  Issuance of Common  Stock.  The shares of Common
Stock which are being issued to the Buyers hereunder, have been duly and validly
authorized  and when issued,  sold and  delivered in  accordance  with the terms
hereof  for  the  consideration   expressed  herein,  will  be  fully  paid  and
nonassessable,  and based in part on the  representations  of the Buyers herein,
will be validly  issued in  compliance  with all  applicable  federal  and state
securities laws.

         SECTION 3.07.  Litigation.  There is no action, suit,  investigation or
proceeding pending against, or to the knowledge of Seller, threatened against or
affecting  Seller  or any of its  respective  properties  before  any  court  or
arbitrator  or any  governmental  body,  agency or official  which in any manner
challenges  or  seeks  to  prevent,   enjoin,  alter  or  materially  delay  the
transactions  contemplated  by this  Agreement  or  which  could  reasonably  be
expected to have a material adverse effect on the business, financial condition,
properties or operations of Seller,  nor is Seller aware that there is any basis
for the foregoing.


<PAGE>



         SECTION 3.08. Brokers or Finders' Fees. Other than Donaldson,  Lufkin &
Jenrette Securities Corporation there is no investment banker, broker, finder or
other  intermediary  which has been  retained  by,  will be  retained  by, or is
authorized  to act on  behalf  of Seller  who  might be  entitled  to any fee or
commission from the Seller in connection with the  transactions  contemplated by
this Agreement.

         SECTION 3.09.  Newly Formed  Corporation.  Seller was  incorporated  on
April 30, 1997 in the State of Delaware  solely for the purpose of  effectuating
the transactions contemplated in this Agreement and the Merger Agreement and has
not conducted any business or entered into any agreements or commitments  except
with respect to the foregoing.

         SECTION  3.10.  Meaning of  Seller.  Except as  otherwise  specifically
provided  herein,  references to the Seller contained in this Article 3 shall be
construed to refer to the Seller  immediately  prior to the  consummation of the
transactions contemplated by the Merger Agreement.



                                            ARTICLE 4


                            REPRESENTATIONS AND WARRANTIES OF BUYERS

         Each Buyer  represents  and warrants to Seller,  severally as to itself
only and not jointly or as to any other  Buyer,  as of the date hereof and as of
the Closing Date that:

         SECTION 4.01. Existence and Power. Such Buyer, if not an individual, is
duly  organized,  validly  existing and in good  standing  under the laws of its
jurisdiction  of  organization  and has all powers  (corporate,  partnership  or
otherwise)  and all material  governmental  licenses,  authorizations,  permits,
consents and approvals required to carry on its business as now conducted.  Such
Buyer, if an individual, has the legal capacity to enter into this Agreement and
the Investors' Agreement.

         SECTION 4.02. Authorization. The execution, delivery and performance by
such  Buyer  of each of this  Agreement  and the  Investors'  Agreement  and the
consummation of the transactions  contemplated hereby and thereby are within the
powers  (corporate,  partnership  or otherwise) of such Buyer and have been duly
authorized  by all  necessary  action  on the part of such  Buyer.  Each of this
Agreement and the Investors' Agreement constitutes a valid and binding agreement
of such Buyer, enforceable in accordance with their respective terms, except (i)
as limited by the applicable bankruptcy, insolvency, reorganization, moratorium,
and other laws of general application affecting enforcement or creditors' rights
generally,  or (ii) as limited by laws relating to the  availability of specific
performance, injunctive relief, or other equitable remedies.


<PAGE>



         SECTION 4.03. Governmental Authorization.  The execution,  delivery and
performance by such Buyer of this Agreement and the Investors' Agreement and the
consummation  of the  transactions  contemplated  hereby and thereby  require no
order,  license,  consent,  authorization  or approval of, or  exemption  by, or
action by or in respect of, or notice to, or filing or  registration  with,  any
governmental body, agency or official.

         SECTION 4.04.  Purchase for Investment.  Such Buyer is purchasing the
Common Stock for investment for its own account and not with a view to, or for
sale in connection with, any distribution thereof.

         SECTION 4.05.  Private  Placement.  (a) Such Buyer understands that (i)
the  offering  and sale of the  Securities  hereby is intended to be exempt from
registration  under the 1933 Act and (ii) there is only a limited market for the
Common Stock,  and there can be no assurance that any Buyer will be able to sell
or dispose of the Common Stock to be purchased by such Buyer.

                  (b) Such Buyer's  financial  situation is such that such Buyer
can afford to bear the  economic  risk of  holding  the  Common  Stock  acquired
hereunder for an indefinite  period of time, and such Buyer can afford to suffer
the complete loss of the investment in the Common Stock .

                  (c) Such Buyer's  knowledge  and  experience  in financial and
business  matters are such that it is capable of evaluating the merits and risks
of the  investment  in the Common  Stock,  or such  Buyer has been  advised by a
representative possessing such knowledge and experience.

                  (d) Such  Buyer  understands  that the Common  Stock  acquired
hereunder are a speculative  investment  which involves a high degree of risk of
loss of the entire investment therein,  that there are substantial  restrictions
on the  transferability  of the  Common  Stock as set  forth  in the  Investors'
Agreement,  and that for an  indefinite  period  following the date hereof there
will be no (or only a limited)  public  market  for the  Common  Stock and that,
accordingly,  it may not be possible  for such Buyer to sell the Common Stock in
case of emergency or otherwise.

                  (e) Such  Buyer  and its  representatives,  including,  to the
extent  it  deems  appropriate,  its  professional,  financial,  tax  and  other
advisors,  have reviewed all documents  provided to them in connection  with the
investment in the Common Stock,  and such Buyer  understands and is aware of the
risks related to such investment.

                  (f) Such  Buyer and its  representatives  have been  given the
opportunity  to examine all  documents  and to ask  questions of, and to receive
answers from, Seller and its representatives concerning the terms and conditions


<PAGE>



of the  acquisition  of the Common  Stock and related  matters and to obtain all
additional information which such Buyer or its representatives deem necessary.

                  (g) All  information  which such Buyer has  provided to Seller
and its  representatives  concerning  such  Buyer  and  such  Buyer's  financial
position is true, complete and correct, and such Buyer agrees to promptly notify
Seller if at any time this ceases to be the case prior to the Closing.

                  (h) Such  Buyer is an  "accredited  investor"  as such term is
defined in Regulation D under the 1933 Act.

         SECTION 4.06.  Litigation.  There is no action, suit,  investigation or
proceeding pending against, or to the knowledge of such Buyer threatened against
or  affecting,  such Buyer before any court or  arbitrator  or any  governmental
body,  agency or official  which in any manner  challenges  or seeks to prevent,
enjoin,  alter  or  materially  delay  the  transactions  contemplated  by  this
Agreement or the Investors' Agreement.

         SECTION 4.07.  Brokers or Finders' Fees. There is no investment banker,
broker,  finder  or other  intermediary  which  has been  retained  by,  will be
retained  by or is  authorized  to act on  behalf  of such  Buyer  who  might be
entitled to any fee or commission  from the Company,  Seller or the DLJ entities
upon consummation of the transactions contemplated by this Agreement (as defined
in the Investors' Agreement of even date herewith).



                                            ARTICLE 5

                                      CONDITIONS TO CLOSING

         SECTION 5.01.  Conditions to Obligations of Each Buyer and Seller.  The
obligations of Buyer and Seller to consummate the Closing are subject to the
satisfaction of the following conditions:

          (a) No provision of any  applicable  law,  rule or  regulation  and no
         judgment,  injunction,  order or decree by any  governmental  entity of
         competent  jurisdiction  shall prohibit the consummation of the Closing
         or the Merger.

          (b) All  material  actions by or in respect of, or filings  with,  any
         governmental body, agency, official or authority required to permit the
         consummation of the Closing shall have been taken, made or obtained.

                  (c)    The conditions to the consummation of the Merger
         Agreement (other than the condition set forth in Section 8.01(e)


<PAGE>



         thereof,  which shall be reasonably  certain to occur immediately after
         the Closing) shall have been satisfied or waived.

     SECTION 5.02.  Conditions to  Obligation of Each Buyer.  The  obligation of
each Buyer to  consummate  the  Closing is  subject to the  satisfaction  of the
following further conditions:

          (a) (i) Seller shall have  performed  in all material  respects all of
         its obligations hereunder required to be performed by it on or prior to
         the Closing Date and (ii) the  representations and warranties of Seller
         contained in this  Agreement  and in any  certificate  or other writing
         delivered  by  Seller  pursuant  hereto  shall be true in all  material
         respects when made and at and as of the Closing Date, as if made at and
         as of such date.

          (b) Such Buyer shall have  received all  documents  it may  reasonably
         request relating to the existence of Seller and the authority of Seller
         for this Agreement,  all in form and substance reasonably  satisfactory
         to such Buyer.

         SECTION 5.03.  Conditions to  Obligation of Seller.  The  obligation of
Seller to  consummate  the Closing  with  respect to any Buyer is subject to the
satisfaction of the following further conditions:

                  (a) (i)  Such  Buyer  shall  have  performed  in all  material
         respects all of its obligations  hereunder  required to be performed by
         it at or prior to the  Closing  Date and (ii) the  representations  and
         warranties  of  such  Buyer  contained  in  this  Agreement  and in any
         certificate or other writing  delivered by such Buyer  pursuant  hereto
         shall be true in all material  respects  when made and at and as of the
         Closing Date, as if made at and as of such date.

                  (b) Seller shall have received all documents it may reasonably
         request  relating to the  existence of such Buyer and the  authority of
         such Buyer for this  Agreement,  all in form and  substance  reasonably
         satisfactory to Seller.



                                            ARTICLE 6


                                    SURVIVAL; INDEMNIFICATION

         SECTION  6.01.  Survival.  The  representations  and  warranties of the
parties  hereto  contained  in this  Agreement or in any  certificate  delivered
pursuant hereto or in connection herewith shall survive the Closing until twelve
months after the Closing Date,  provided that the representations and warranties
contained in


<PAGE>



Sections 3.01, 3.02,  3.04,  3.05, 3.06 and 4.01 shall survive  indefinitely for
the maximum period permitted by applicable law, if longer.  Notwithstanding  the
preceding sentence, any representation or warranty in respect of which indemnity
may be sought  under this  Agreement  shall  survive  the time at which it would
otherwise  terminate  pursuant  to the  preceding  sentence,  if  notice  of the
inaccuracy or breach thereof  giving rise to such right of indemnity  shall have
been given to the party against whom such  indemnity may be sought prior to such
time, but only as to such inaccuracy or breach.  A breach of any  representation
or warranty made in this Agreement shall not affect in any manner whatsoever the
relative  rights and  obligations  of the  parties  to and under the  Investors'
Agreement.

         SECTION 6.02. Indemnification. (a) Seller hereby indemnifies each Buyer
and its Affiliates,  limited partners, general partners, directors, officers and
employees  against  and  agrees to hold each of them  harmless  from any and all
damage, loss, liability and expense (including,  without limitation,  reasonable
expenses  of  investigation  and  reasonable  attorneys'  fees and  expenses  in
connection with any action, suit or proceeding) ("Damages") incurred or suffered
by any such party  arising out of any  misrepresentation  or breach of warranty,
covenant  or  agreement  made or to be  performed  by  Seller  pursuant  to this
Agreement;  provided  that with  respect to any Buyer,  (i) Seller  shall not be
liable under this Section  6.02(a)  unless the aggregate  amount of Damages with
respect to all matters  referred to in this Section 6.02(a) for which such Buyer
has sought indemnification  exceeds $100,000 and then only to the extent of such
excess and (ii) Seller's maximum  liability under this Section 6.02(a) shall not
exceed the amount of the Purchase Price paid by such Buyer.

          (b) Each Buyer hereby indemnifies,  severally and not jointly,  Seller
and its Affiliates,  limited partners, general partners, directors, officers and
employees  against  and  agrees to hold each of them  harmless  from any and all
Damages   incurred  or   suffered   by  any  such  party   arising  out  of  any
misrepresentation  or breach of warranty,  covenant or  agreement  made or to be
performed by such Buyer pursuant to this Agreement; provided that (i) such Buyer
shall not be liable under this Section  6.02(b)  unless the aggregate  amount of
Damages with respect to all matters  referred to in this Section 6.02(b) exceeds
$100,000  and then only to the  extent  of such  excess  and (ii)  such  Buyer's
maximum  liability  under this  Section  6.02(b)  shall not exceed the amount of
Purchase Price paid by such Buyer.

         SECTION 6.03.  Procedures and Third Party Claims. (a) The party seeking
indemnification  under  Section 6.02 (the  "Indemnified  Party")  agrees to give
prompt notice to the party against whom  indemnity is sought (the  "Indemnifying
Party") of the assertion of any claim, or the  commencement of any suit,  action
or proceeding  ("Claim") in respect of which  indemnity may be sought under such
Section and will provide the  Indemnifying  Party such  information with respect
thereto that the Indemnifying  Party may reasonably  request.  The failure to so
notify the Indemnifying Party shall not relieve the Indemnifying Party of its


<PAGE>



obligations  hereunder,  except to the extent such failure shall have  adversely
prejudiced the Indemnifying  Party (except that the Indemnifying Party shall not
be liable for any expenses  incurred  during the period in which the Indemnified
Party failed to give such notice).

          (b) The  Indemnifying  Party shall be entitled to  participate  in the
defense of any Claim  asserted by any third party  ("Third  Party  Claim")  and,
subject to the  limitations  set forth in this  Section,  shall be  entitled  to
control and appoint lead counsel for such defense, in each case at its expense.

          (c) If the Indemnifying  Party shall assume the control of the defense
of any Third Party Claim in accordance with the provisions of this Section,  (i)
the Indemnifying Party shall obtain the prior written consent of the Indemnified
Party  (which  shall not be  unreasonably  withheld)  before  entering  into any
settlement  of such Third Party Claim,  if the  settlement  does not release the
Indemnified  Party from all  liabilities  and  obligations  with respect to such
Third Party Claim or the settlement imposes injunctive or other equitable relief
against the Indemnified  Party and (ii) the Indemnified  Party shall be entitled
to participate  in the defense of such Third Party Claim and to employ  separate
counsel of its choice for such  purpose.  The fees and expenses of such separate
counsel shall be borne by the Indemnified Party.

          (d) Each party shall cooperate, and cause its respective Affiliates to
cooperate,  in the  defense or  prosecution  of any Third  Party Claim and shall
furnish or cause to be furnished such records,  information  and testimony,  and
attend such conferences,  discovery proceedings, hearings, trials or appeals, as
may be reasonably requested in connection therewith.

         SECTION  6.04.  Calculation  of Damages.  (a) The amount of any Damages
payable  under  Section 6.02 by the  Indemnifying  Party shall be net of any (i)
amounts  recovered or  recoverable  by the  Indemnified  Party under  applicable
insurance policies, (ii) Tax cost incurred by the Indemnified Party arising from
the  receipt  of  indemnity  payments  and (iii)  Tax  Benefit  realized  by the
Indemnified Party arising from the incurrence or payment of any such Damages. In
computing the amount of any such Tax cost or Tax Benefit,  the Indemnified Party
shall be deemed  to fully  utilize,  at the  highest  marginal  tax rate then in
effect,  all Tax  items  arising  from  the  receipt  of any  indemnity  payment
hereunder or the incurrence or payment of any indemnified Damages.

          (b) The Indemnifying  Party shall not be liable under Section 6.02 for
any (i) incidental  Damages,  (ii)  consequential  or punitive  Damages or (iii)
Damages for lost profits.

     SECTION 6.05. Exclusivity. After the Closing, Section 6.02 will provide the
exclusive remedy for any misrepresentation, breach of warranty, covenant or


<PAGE>



other agreement or other claim arising out of this Agreement or the transactions
contemplated hereby.



                                            ARTICLE 7

                                           TERMINATION

         SECTION 7.01.  Grounds for Termination.  This Agreement may be
terminated at any time prior to the Closing:

          (a)   by mutual written agreement of Seller and Buyers;

          (b) by  either  Seller or any  Buyer as to such  Buyer if the  Closing
         shall not have been  consummated as of the close of business on Friday,
         August 8, 1997; or

          (c) by either Seller or any Buyer if consummation of the  transactions
         contemplated  hereby  would  violate any  non-appealable  final  order,
         decree or judgment of any court or governmental  body having  competent
         jurisdiction.

The party desiring to terminate this  Agreement  pursuant to clauses  7.01(b) or
(c) shall give notice of such termination to the other party.

         SECTION 7.02. Effect of Termination. If this Agreement is terminated as
permitted by Section 7.01, such termination shall be without liability of either
party (or any stockholder,  general partner, limited partner, director, officer,
employee,  agent, consultant or representative of such party) to the other party
to this  Agreement;  provided  that if such  termination  shall  result from the
willful (i) failure of either party to fulfill a condition to the performance of
the  obligations of the other party,  (ii) failure to perform a covenant of this
Agreement  or (iii)  breach by either  party  hereto  of any  representation  or
warranty or agreement contained herein, such party shall be fully liable for any
and all  Damages  incurred  or  suffered  by the other party as a result of such
failure or breach.  The provisions of Sections 8.03, 8.05 and 8.06 shall survive
any termination hereof pursuant to Section 7.01.




<PAGE>



                                            ARTICLE 8

                                          MISCELLANEOUS

     SECTION 8.01. Notices.  All notices,  requests and other  communications to
any party hereunder shall be in writing (including  facsimile  transmission) and
shall be given,

         if to any Buyer,  to such Buyer at the address  specified by such Buyer
on the signature  pages of this  Agreement or in a notice given by such Buyer to
Seller for such purpose;

         if to Seller, to:

                  Quaker Holding Co.
                  c/o DLJ Merchant Banking Partners II, L.P.
                  277 Park Avenue
                  New York, New York  10172
                  Attention: Peter T. Grauer
                  Fax: (212) 892-7272

                  with a copy to:

                  Davis Polk & Wardwell
                  450 Lexington Avenue
                  New York, New York  10017
                  Attention: George R. Bason, Jr.
                  Fax:  (212) 450-4800

or to such other  address or telecopy  number and with such other copies as such
party may hereafter specify for the purpose of notice.

All such notices,  requests and other communications shall be deemed received on
the date of receipt by the recipient  thereof if received prior to 5 p.m. in the
place of  receipt  and  such  day is a  business  day in the  place of  receipt.
Otherwise, any such notice, request or communication shall be deemed not to have
been received until the next succeeding business day in the place of receipt.

         SECTION  8.02.  Amendments  and  Waivers.  (a)  Any  provision  of this
Agreement may be amended or waived if, but only if, such  amendment or waiver is
in writing  and is signed,  in the case of an  amendment,  by each party to this
Agreement,  or in the case of a waiver,  by the party against whom the waiver is
to be effective.

          (b) No failure or delay by any party in exercising any right, power or
privilege  hereunder  shall operate as a waiver  thereof nor shall any single or
partial  exercise  thereof preclude any other or further exercise thereof or the
exercise of


<PAGE>



any other right,  power or privilege.  The rights and remedies  herein  provided
shall be cumulative and not exclusive of any rights or remedies provided by law.

         SECTION 8.03.  Expenses.  All costs and expenses incurred in connection
with this Agreement  shall be paid by the party  incurring such cost or expense,
except that if the Closing  shall occur,  the Company  shall  reimburse  (i) the
Buyers other than the DLJ  Entities  (as that term is defined in the  Investors'
Agreement)  for up to $20,000 in respect  of fees and  expenses  of one  counsel
retained to  represent  such Buyers and (ii) the DLJ  Entities for all costs and
expenses incurred by the DLJ Entities.

         SECTION 8.04.  Successors and Assigns. The provisions of this Agreement
shall be binding  upon and inure to the benefit of the parties  hereto and their
respective successors and assigns;  provided that no party may assign,  delegate
or otherwise  transfer  any of its rights or  obligations  under this  Agreement
without the consent of each other party hereto.

         SECTION 8.05.  Governing Law.  This Agreement shall be governed by and
construed in accordance with the law of the State of New York.

         SECTION  8.06.  Jurisdiction.  The parties  hereto agree that any suit,
action or proceeding seeking to enforce any provision of, or based on any matter
arising  out of or in  connection  with,  this  Agreement  or  the  transactions
contemplated  hereby may only be brought in the United States District Court for
the  Southern  District of New York or any New York State  court  sitting in New
York City, and each of the parties hereby  consents to the  jurisdiction of such
courts (and of the  appropriate  appellate  courts  therefrom) in any such suit,
action or proceeding and irrevocably  waives, to the fullest extent permitted by
law, any objection which it may now or hereafter have to the laying of the venue
of any such suit,  action or proceeding in any such court or that any such suit,
action or  proceeding  which is brought in any such court has been brought in an
inconvenient forum. Process in any such suit, action or proceeding may be served
on any party anywhere in the world,  whether within or without the  jurisdiction
of any such  court.  Without  limiting  the  foregoing,  each party  agrees that
service of process on such  party as  provided  in Section  8.01 shall be deemed
effective service of process on such party.

         SECTION 8.07.  Waiver Of Jury Trial.  EACH OF THE PARTIES
HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR
RELATED TO THIS AGREEMENT OR THE TRANSACTIONS
CONTEMPLATED HEREBY.

         SECTION 8.08.  Counterparts; Third Party Beneficiaries.  This Agreement
may be signed in any number of counterparts, each of which shall be an original,
with the same effect as if the signatures thereto and hereto were upon the same


<PAGE>



instrument.  This Agreement shall become  effective when each party hereto shall
have  received  a  counterpart  hereof  signed by the  other  party  hereto.  No
provision of this Agreement is intended to confer upon any Person other than the
parties hereto any rights or remedies hereunder.

         SECTION  8.09.  Entire   Agreement.   This  Agreement  along  with  the
Investors' Agreement  (including the documents,  schedules and exhibits referred
to herein and therein)  constitute the entire agreement between the parties with
respect  to the  subject  matter  of this  Agreement  and  supersedes  all prior
agreements and understandings,  both oral and written,  between the parties with
respect to the subject matter of this Agreement.

         SECTION 8.10.  Captions.  The captions herein are included for
convenience of reference only and shall be ignored in the construction or
interpretation hereof.

         SECTION 8.11. Severability. If one or more provisions of this Agreement
are held to be  unenforceable  under  applicable  law, such  provision  shall be
executed  from  this  Agreement  and  the  balance  of the  Agreement  shall  be
interpreted  as if such  provision  were so  excluded  and shall be  enforced in
accordance with its terms to the maximum extent permitted by law.

         SECTION 8.12. Interpretation.  The headings contained in this Agreement
are for reference purposes only and shall not affect in any way the  meaning  or
interpretation of this Agreement.


<PAGE>



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

                                       QUAKER HOLDING CO.


                                       By:   /s/ Kirk Wortman
                                             Name:    Kirk Wortman
                                             Title:   Vice-President


                                       DLJ MERCHANT BANKING PARTNERS
                                       II, L.P., a Delaware Limited Partnership

                                       By: DLJ Merchant Banking II, Inc.,
                                             as managing general partner


                                       By:   /s/ Kirk Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272
<PAGE>
                                       DLJ MERCHANT BANKING PARTNERS
                                       II-A, L.P.,a Delaware Limited Partnership
                                        By: DLJ Merchant Banking II, Inc.,
                                             as managing general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact



                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272


                                       DLJ OFFSHORE PARTNERS II, C.V., a
                                       Netherlands Antilles Limited Partnership

                                       By: DLJ Merchant Banking II, Inc.,
                                             as advisory general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272
<PAGE>
                                       DLJ DIVERSIFIED PARTNERS, L.P., a
                                       Delaware Limited Partnership

                                       By: DLJ Diversified Partners II, Inc.,
                                            as managing general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272


                                       DLJ DIVERSIFIED PARTNERS-A, L.P., a
                                       Delaware Limited Partnership

                                       By: DLJ Diversified Partners II, Inc.,
                                           as managing general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272

<PAGE>
                                       DLJ MILLENIUM PARTNERS, L.P., a
                                       Delaware Limited Partnership

                                       By:   DLJ Merchant Banking II, Inc.,
                                             as managing general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272

                                       DLJ MILLENIUM PARTNERS-A, L.P.

                                       By:   DLJ Merchant Banking II, Inc., as
                                             managing general partner



                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                      Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY   10172
                                                      Fax: 212-892-7272


                                       DLJMB FUNDING II, INC., a Delaware
                                       corporation


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272
<PAGE>
                                       DLJ FIRST ESC, L.L.C.,

                                       By: DLJ LBO Plans Management Corporation,
                                             as manager

                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B.Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272


                                       UK INVESTMENT PLAN 1997
                                        PARTNERS

                                       By: Donaldson, Lufkin & Jenrette, Inc.,
                                             as general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                       Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272

<PAGE>
                                       DLJ EAB PARTNERS, L.P.

                                       By:DLJ Merchant Banking Funding II, Inc.,
                                             its general partner


                                       By:   /s/ Kirk B. Wortman
                                             Name:    Kirk B. Wortman
                                             Title:   Attorney-in-Fact

                                       Address:       c/o DLJ Merchant
                                                        Banking II, Inc.
                                                      277 Park Avenue
                                                      New York, NY 10172
                                                      Fax: 212-892-7272


                                       APOLLO INVESTMENT FUND III, L.P.

                                       By: Apollo Advisors II, L.P., its
                                             general partner

                                       By: Apollo Capital Management II, Inc.,
                                              its general partner


                                       By:   /s/ Josh Harris
                                             Name:    Josh Harris
                                             Title:   Vice President

                                       Address:      1301 Avenue of the Americas
                                                     38th Floor
                                                     New York, NY 10019
<PAGE>
                                       APOLLO OVERSEAS PARTNERS III, L.P.
                                       By: Apollo Advisors II, L.P., its
                                            general partner

                                       By: Apollo Capital Management II, Inc.,
                                            its general partner


                                       By:   /s/ Josh Harris
                                             Name: Josh Harris
                                             Title:  Vice President

                                       Address:      1301 Avenue of the Americas
                                                     38th Floor
                                                     New York, NY 10019


                                       APOLLO U.K. PARTNERS III, L.P.

                                       By: Apollo Advisors II, L.P., its
                                             general partner

                                       By: Apollo Capital Management II, Inc.,
                                             its general partner


                                       By:   /s/ Josh Harris
                                             Name: Josh Harris
                                             Title:  Vice President

                                      Address:       1301 Avenue of the Americas
                                                     38th Floor
                                                     New York, NY 10019

<PAGE>
                                       BAIN CAPITAL FUND V, L.P.

                                       By: Bain Capital Partners V, L.P.,
                                             its general partner

                                       By:  Bain Capital Investors V, Inc.,
                                             its general partner

                                       By:   /s/ Stephen Pagliuca
                                             Name: Stephen Pagliuca
                                             Title:   General Parter

                                       Address:      c/o Bain Capital, Inc.
                                                     Two Copley Place
                                                     Boston, MA 02116
                                                     Attention: Stephen Pagliuca


                                       BAIN CAPITAL FUND, V-B, L.P.

                                       By: Bain Capital Partners V, L.P.,
                                             its general partner

                                       By:  Bain Capital Investors V, Inc.,
                                               its general partner


                                       By:   /s/ Stephen Pagliuca
                                             Name: Stephen Pagliuca
                                             Title:    General Partner

                                       Address:      c/o Bain Capital, Inc.
                                                     Two Copley Place
                                                     Boston, MA 02116
                                                     Attention: Stephen Pagliuca

<PAGE>
                                       BCIP ASSOCIATES

                                       By:   /s/ Stephen Pagliuca
                                             Name: Stephen Pagliuca
                                             Title:   General Partner


                                       Address:      c/o Bain Capital, Inc.
                                                     Two Copley Place
                                                     Boston, MA 02116
                                                     Attention: Stephen Pagliuca


                                       BCIP TRUST ASSOCIATES, L.P.

                                       By: Bain Capital Partners V, L.P.,
                                             its general partner

                                       By:  Bain Capital Investors V, Inc.,
                                             its general partner

                                       By:   /s/ Stephen Pagliuca
                                             Name: Stephen Pagliuca
                                             Title:   General Partner

                                       Address:      c/o Bain Capital, Inc.
                                                     Two Copley Place
                                                     Boston, MA 02116
                                                     Attention: Stephen Pagliuca
<PAGE>
                                       THOMAS H. LEE EQUITY FUND III, L.P.

                                       By:  THL Equity Advisors III
                                              Limited Partnership

                                       By:  THL Equity Trust III


                                       By:   /s/ Scott Schoen
                                             Name: Scott Schoen
                                             Title:   Managing Director

                                       Address:       75 State Street
                                                      Boston, MA 02109


                                       THOMAS H. LEE FOREIGN FUND III, L.P.

                                       By:  THL Equity Advisors III
                                              Limited Partnership

                                       By: THL Equity Trust III


                                       By:   /s/ Scott Schoen
                                             Name: Scott Schoen
                                             Title:   Managing Director

                                       Address:       75 State Street
                                                      Boston, MA 02109


                                       THL CO-INVESTORS III-A LLC

                                       By:   /s/ Thomas H. Lee
                                             Name: Thomas H. Lee
                                             Title:   Manager

                                       Address:       75 State Street
                                                      Boston, MA 02109


                                       THL CO-INVESTORS III-B LLC


                                       By:   /s/ Thomas H. Lee
                                             Name: Thomas H. Lee
                                             Title:   Manager

                                       Address:       75 State Street
                                                      Boston, MA 02109
<PAGE>
                                       DLJ CAPITAL CORP.


                                       By:   /s/ Richard E. Kroon
                                             Name: Richard E. Kroon
                                             Title:   President

                                       Address:       277 Park Avenue
                                                      New York, NY   10172


                                       SPROUT GROWTH II, L.P.

                                       By: DLJ Capital Corporation,
                                             its managing general partner


                                       By:   /s/ Richard E. Kroon
                                             Name: Richard E. Kroon
                                             Title:   President

                                       Address:       277 Park Avenue
                                                      New York, NY 10172


                                       THE SPROUT CEO FUND, L.P.

                                       By: DLJ Capital Corporation,
                                             its managing general partner


                                       By:   /s/ Richard E. Kroon
                                             Name: Richard E. Kroon
                                             Title:    President

                                       Address:       277 Park Avenue
                                                      New York, NY 10172

<PAGE>
                                       ONTARIO TEACHERS' PENSION
                                       PLAN BOARD


                                       By:   /s/ Dean Metcalf
                                             Name: Dean Metcalf
                                             Title: Portfolio Manager,
                                                     Merchant Banking

                                       Address:       5650 Yonge Street
                                                      North York, Ontario
                                                      Canada, M2M 4H5
<PAGE>
                                   SCHEDULE A
<TABLE>
<CAPTION>
Investor                                 No. of Common Shares            Aggregate Purchase

<S>                                     <C>                              <C>
DLJ Merchant Banking Partners II, L.P   4,703,762                        96,932,137.08
DLJ Merchant Banking Partners II-A,L.P.   187,326                         3,860,284.87
DLJ Offshore Partners, L.P.               231,307                         4,766,622.62
DLJ Diversified Partners, L.P.            275,003                         5,667,095.07
DLJ Diversified Partners-A, L.P.          102,127                         2,104,560.24
DLJ Millennium Partners, L.P.              76,055                         1,567,276.12
DLJ Millennium Partners - A, L.P.          14,834                           305,685.43
DLJMB Funding II, Inc.                    946,201                        19,498,728.27
DLJ First ESC, L.L.C.                     874,223                        18,015,434.00
DLJ EAB Partners, L.P.                     21,119                           435,204.97
UK Investment Plan 1997 Partners           88,052                         1,814,515.60
Apollo Investment Fund III, L.P.          738,693                        15,222,519.19
Apollo Overseas Partners III, L.P.         44,117                           909,143.31
Apollo (U.K.) Partners III, L.P.           27,307                           562,718.22
Bain Capital Fund V L.P.                  158,619                         3,268,702.22
Bain Capital Fund V-B, L.P.               413,039                         8,511,678.44
BCIP Associates                           124,016                         2,555,635.04
BCIP Trust Associates                     114,443                         2,358,365.01
Thomas H. Lee Equity Fund III, L.P.       695,016                        14,322,454.99
Thomas H. Lee Foreign Fund III, L.P.       43,006                           886,234.74
THL Co. - Investors III - A LLC            43,910                           904,865.69
THL Co. - Investors III - B LLC            28,185                           580,825.30
DLJ Capital Corp.                          10,568                           217,752.91
DLJ Merchant Banking Partners II, L.P.  4,703,762                        96,932,137.08
Sprout Growth II, L.P.                    457,319                         9,424,167.36
The Sprout CEO Fund, L.P.                   7,617                           156,960.76
Ontario Teachers' Pension Plan Fund       493,115                        10,161,797.96
</TABLE>

                                 CONFORMED COPY
                                    Exhibit 4







                              INVESTORS' AGREEMENT

                                   dated as of

                                 August 7, 1997

                                      among

                           DECISIONONE HOLDINGS CORP.,
                     DLJ MERCHANT BANKING PARTNERS II, L.P.,
                   DLJ MERCHANT BANKING PARTNERS II - A, L.P.,
                         DLJ OFFSHORE PARTNERS II, C.V.,
                         DLJ DIVERSIFIED PARTNERS, L.P.,
                       DLJ DIVERSIFIED PARTNERS - A, L.P.,
                         DLJ MILLENNIUM PARTNERS, L.P.,
                       DLJ MILLENNIUM PARTNERS - A, L.P.,
                             DLJMB FUNDING II, INC.,
                        UK INVESTMENT PLAN 1997 PARTNERS,
                             DLJ EAB PARTNERS, L.P.,
                               DLJ FIRST ESC, LLC,

                                       AND

                       CERTAIN OTHER PERSONS NAMED HEREIN



<PAGE>
<TABLE>
<CAPTION>
                                TABLE OF CONTENTS
<S>                                                                                         <C>
                                                                                             PAGE
                                    ARTICLE 1
                                   DEFINITIONS

         SECTION 1.01.  Definitions.............................................................2

                                    ARTICLE 2
                       CORPORATE GOVERNANCE AND MANAGEMENT

         SECTION 2.01.  Composition of the Board...............................................10
         SECTION 2.02.  Removal................................................................10
         SECTION 2.03.  Vacancies..............................................................10
         SECTION 2.04.  Action by the Board....................................................11
         SECTION 2.05.  Conflicting Charter or Bylaw Provision.................................11

                                    ARTICLE 3
                            RESTRICTIONS ON TRANSFER

         SECTION 3.01.  General................................................................12
         SECTION 3.02.  Legends................................................................12
         SECTION 3.03.  Permitted Transferees..................................................13
         SECTION 3.04.  Restrictions on Transfers by Institutional Shareholders................13
         SECTION 3.05.  Restrictions on Transfers by Management Shareholders...................13

                                    ARTICLE 4
                     TAG-ALONG RIGHTS; DRAG-ALONG RIGHTS; PREEMPTIVE RIGHTS

         SECTION 4.01.  Rights to Participate in Transfer......................................15
         SECTION 4.02.  Right to Compel Participation in Certain Transfers.....................17
         SECTION 4.03.  Preemptive Rights......................................................19
         SECTION 4.04.  Certain Other Purchases of Common Stock................................20

                                    ARTICLE 5
                               REGISTRATION RIGHTS

         SECTION 5.01.  Demand Registration....................................................21
         SECTION 5.02.  Piggyback Registration.................................................23
         SECTION 5.04.  Registration Procedures................................................25
         SECTION 5.05.  Indemnification by the Company.........................................29
         SECTION 5.06.  Indemnification by Participating Shareholders..........................29
         SECTION 5.08.  Contribution...........................................................31
<PAGE>
         SECTION 5.09.  Participation in Public Offering.......................................33
         SECTION 5.10.  Cooperation by the Company.............................................33
         SECTION 5.11.  No Transfer of Registration Rights.....................................33

                                    ARTICLE 6
                        CERTAIN COVENANTS AND AGREEMENTS

         SECTION 6.01.  Confidentiality........................................................33
         SECTION 6.02.  Reports................................................................34
         SECTION 6.03.  Limitations on Subsequent Registration.................................35
         SECTION 6.04.  Exclusive Financial Advisor and Investment Banking Advisor.............35
         SECTION 6.05.  Limitation on Purchase of Common Stock.................................35

                                    ARTICLE 7
                                  MISCELLANEOUS

         SECTION 7.01.  Entire Agreement.......................................................35
         SECTION 7.02.  Binding Effect; Benefit................................................36
         SECTION 7.03.  Assignability..........................................................36
         SECTION 7.04.  Amendment; Waiver; Termination.........................................36
         SECTION 7.05.  Notices................................................................37
         SECTION 7.06.  Headings...............................................................38
         SECTION 7.07.  Counterparts...........................................................38
         SECTION 7.08.  Applicable Law.........................................................38
         SECTION 7.09.  Specific Enforcement...................................................38
         SECTION 7.10.  Consent to Jurisdiction; Expenses......................................39
         SECTION 7.11.  Severability...........................................................39
</TABLE>
<PAGE>
                              INVESTORS' AGREEMENT

         AGREEMENT  dated as of August 7, 1997  among (i)  DecisionOne  Holdings
Corp. (the "Company"),  (ii) DLJ Merchant  Banking Partners II, L.P.  ("DLJMB"),
DLJ Offshore  Partners II, C.V., DLJ Diversified  Partners,  L.P., DLJMB Funding
II, Inc., DLJ Merchant Banking Partners II - A, L.P., DLJ Diversified Partners -
A., L.P., DLJ Millennium  Partners,  L.P., DLJ Millennium Partners - A, L.P., UK
Investment  Plan 1997 Partners,  DLJ EAB Partners,  L.P., and DLJ First ESC, LLC
(each a "DLJ Entity" and a "Shareholder"  and  collectively the "DLJ Entities"),
(iii) Apollo  Investment Fund III L.P.  ("Apollo  Investment"),  Apollo Overseas
Partners III L.P. ("Apollo Overseas"), Apollo (U.K.) Partners III, L.P. ("Apollo
U.K."),  Bain Capital Fund V L.P.  ("Bain  Capital V"), Bain Capital Fund,  V-B,
L.P. ("Bain Capital V-B"), BCIP Associates ("BCIP"),  BCIP Trust Associates L.P.
("BCIP  Trust"),  Thomas H. Lee Equity  Fund III,  L.P.  ("THL"),  Thomas H. Lee
Foreign Fund III, L.P. ("THL Foreign Fund"),  THL Co-Investors  III-A, LLC ("THL
Co-Investors  A"),  THL  Co-Investors  III-B,  LLC ("THL  Co-Investors  B"), DLJ
Capital Corp. ("DLJ Capital"), Sprout Growth II, L.P. ("Sprout"), The Sprout CEO
Fund, L.P. ("Sprout CEO Fund"), and Ontario Teachers' Pension Plan Board (each a
"Shareholder" and collectively, the Shareholders listed in this clause (iii) are
referred to as the "Institutional  Shareholders") and (iv) certain other Persons
listed on the signature pages hereof (each a "Shareholder" and collectively, the
"Management Shareholders").

                              W I T N E S S E T H :

         WHEREAS,  pursuant to the  Subscription  Agreement and the  DecisionOne
Direct Investment  Program (as defined below) certain parties hereto are or will
be acquiring securities of Quaker Holding Co. and the Company, respectively; and

         WHEREAS,  pursuant  to the terms of the Merger  Agreement  (as  defined
below),  Quaker  Holding Co. will be merged with and into the Company,  with the
Company as the surviving corporation (the "Merger");

         WHEREAS,  the parties  hereto  desire to enter into this  Agreement  to
govern certain of their rights, duties and obligations after consummation of the
transactions  contemplated by the Merger Agreement,  the Subscription  Agreement
and the DecisionOne Direct Investment Program;

         The parties hereto agree as follows:


<PAGE>



                                    ARTICLE 1


                                   DEFINITIONS

     SECTION 1.01.  Definitions.  (a) The following terms, as used herein,  have
the following meanings:

         "Adjusted  Initial  Ownership"  means,  with respect to any  Management
Shareholder,  the number of shares of Common Stock and Common Stock  Equivalents
owned as of the date  hereof,  or in the case of any Person that shall  become a
party to this  Agreement on a later date,  as of such date,  taking into account
any stock split, stock dividend, reverse stock-split or similar event.

         "Adverse  Person"  means any Person whom the Board of  Directors of the
Company  determines is a competitor or a potential  competitor of the Company or
its Subsidiaries.

         "Affiliate"  means,  with  respect  to any  Person,  any  other  Person
directly or indirectly controlling,  controlled by, or under common control with
such Person,  provided that no  securityholder of the Company shall be deemed an
Affiliate of any other securityholder  solely by reason of any investment in the
Company. For the purpose of this definition,  the term "control" (including with
correlative meanings, the terms "controlling", "controlled by" and "under common
control with"),  as used with respect to any Person,  shall mean the possession,
directly or  indirectly,  of the power to direct or cause the  direction  of the
management and policies of such Person,  whether through the ownership of voting
securities or by contract or otherwise.

         "Affiliated Employee Benefit Trust" means any trust that is a successor
to the assets held by a trust established under an employee benefit plan subject
to ERISA or any other trust  established  directly or indirectly under such plan
or any other such plan having the same sponsor.

         "Apollo Entities" means Apollo Investment, Apollo Overseas, Apollo
U.K. and their Permitted Transferees.

         "Bain  Entities"  means Bain Capital V, Bain Capital  V-B,  BCIP,  BCIP
Trust and their Permitted Transferees.

         "beneficially  own" shall have the  meaning  set forth in Rule 13d-3 of
the Exchange Act.

         "Board" means the board of directors of the Company.

         "Business Day" means any day except a Saturday,  Sunday or other day on
which commercial banks in New York City are authorized by law to close.


<PAGE>



         "Change of Control"  means such time as (a) the DLJ Entities  shall own
less than 20% of the outstanding shares of Common Stock, (b) the transfer of all
or  substantially  all of the assets of the Company to any Person or group shall
have been consummated, or (c) the Company shall have been liquidated.

         "Closing Date" means August 7, 1997.

         "Common  Stock" shall mean the common stock,  par value $.01 per share,
of the  Company  and any stock into which such Common  Stock may  thereafter  be
converted or changed.

         "Common Stock Equivalent" means

                                 (20.61 - P) x N
                                 ---------------
                                      20.61

where "N" equals the number of  Roll-Over  Options,  and "P" equals the exercise
price of such Roll-Over Option.

         "DecisionOne Direct Investment Program" means the investment program of
the Company  pursuant to which certain members of the Company's  management will
acquire shares of Common Stock.

         "Drag-Along  Portion" means,  with respect to any Other Shareholder and
any class of Common Stock, the number of such class of Common Stock beneficially
owned by such Other Shareholder multiplied by a fraction, the numerator of which
is the  number of such  class of  Common  Stock  proposed  to be sold by the DLJ
Entities  on  behalf of the DLJ  Entities  and the  Other  Shareholders  and the
denominator  of which is the  total  number of such  class of Common  Stock on a
Fully Diluted basis beneficially owned by the Shareholders.

         "Equity Securities" means the Common Stock, securities convertible into
or  exchangeable  for Common  Stock and  options,  warrants  or other  rights to
acquire Common Stock, preferred stock or any other equity security issued by the
Company.

         "Exchange Act" means the Securities Exchange Act of 1934, as amended.

         "First Public  Offering"  means the first sale after the date hereof of
Common  Stock  pursuant  to  an  effective   registration  statement  under  the
Securities Act (other than a registration statement on Form S-8 or any successor
form).

         "Fully  Diluted" means all  outstanding  shares of Common Stock and all
shares issuable in respect of securities  convertible  into or exchangeable  for
such Common  Stock,  stock  appreciation  rights or options,  warrants and other
irrevocable rights to purchase or subscribe for such Common Stock or securities


<PAGE>



convertible into or exchangeable for such Common Stock;  provided that no Person
shall be deemed to own such number of Fully  Diluted  shares of any Common Stock
as such Person has the right to acquire from any Person other than the Company.

         "Initial Ownership" means, with respect to any Shareholder,  the number
of shares of Common Stock  beneficially  owned (and (without  duplication) which
such  Persons  have the right to acquire from any Person) as of the date hereof,
or in the case of any Person that shall  become a party to this  Agreement  on a
later  date,  as of such  date,  taking  into  account  any stock  split,  stock
dividend, reverse stock split or similar event.

         "Merger  Agreement"  means the Agreement and Plan of Merger dated as of
May 4, 1997, as subsequently amended, between the Company and Quaker Holding Co.

         "Other Shareholders" means all Shareholders other than the DLJ
Entities.

         "Percentage  Ownership"  means,  with respect to any Shareholder at any
time,  (i) the  number  of  shares  of Fully  Diluted  Common  Stock  that  such
Shareholder  beneficially  owns  (and  (without  duplication)  has the  right to
acquire  from any  Person)  at such time,  divided  by (ii) the total  number of
shares of Fully Diluted Common Stock at such time.

         "Permitted  Transferee"  means  (i) in  the  case  of an  Institutional
Shareholder   (a)  any  general  or  limited  partner  or  shareholder  of  such
Shareholder,  and  any  corporation,  partnership  or  other  entity  that is an
Affiliate of such Shareholder (collectively,  "Shareholder Affiliates"), (b) any
general  partner,  limited  partner,  employee,  officer  or  director  of  such
Shareholder  or a  Shareholder  Affiliate,  or any  spouse,  lineal  descendant,
sibling, parent, heir, executor, administrator, testamentary trustee, legatee or
beneficiary  of any of the  foregoing  persons  described  in  this  clause  (b)
(collectively,  "Shareholder Associates"),  and (c) any trust, the beneficiaries
of  which,  or  any  corporation,  limited  liability  company  or  partnership,
stockholders,  members or general or limited partners of which include only such
Shareholder, such Shareholder Affiliates or Shareholder Associates;

         (ii) in the case of a Management Shareholder (a) any other Shareholder,
(b) a spouse or lineal descendant (whether natural or adopted), sibling, parent,
heir, executor,  administrator,  testamentary trustee, legatee or beneficiary of
any of such Management  Shareholder,  (c) any trust, the beneficiaries of which,
or any  corporation,  limited  liability  company or partnership,  stockholders,
members or general or limited  partners of which  include only the Persons named
in clauses (a) or (b) or (d) any charitable remainder trust; or

<PAGE>

         (iii) in the case of any DLJ Entity (A) any other DLJ  Entity,  (B) any
general  or  limited  partner  of any such  entity  (a "DLJ  Partner"),  and any
corporation,  partnership,  Affiliated  Employee  Benefit  Trust or other entity
which is an Affiliate of any DLJ Partner  (collectively,  the "DLJ Affiliates"),
(C) any managing director,  general partner,  director, limited partner, officer
or  employee  of such DLJ Entity or a DLJ  Affiliate,  or the heirs,  executors,
administrators,  testamentary trustees,  legatees or beneficiaries of any of the
foregoing   Persons  referred  to  in  this  clause  (C)   (collectively,   "DLJ
Associates"), and (D) any trust, the beneficiaries of which, or any corporation,
limited liability company or partnership,  the stockholders,  members or general
or limited partners of which, include only such DLJ Entity, DLJ Affiliates,  DLJ
Associates,  their spouses or their lineal descendants. The term "DLJ Entities",
to the extent  such  entities  shall  have  transferred  any of their  Shares to
"Permitted  Transferees",   shall  mean  the  DLJ  Entities  and  the  Permitted
Transferees of the DLJ Entities,  taken  together,  and any right or action that
may be  exercised  or taken at the election of the DLJ Entities may be exercised
or taken at the election of the DLJ Entities and such Permitted Transferees.

         "Person" means an individual,  corporation,  limited liability company,
partnership,  association,  trust or other entity or  organization,  including a
government or political subdivision or an agency or instrumentality thereof.

         "Pro Rata  Portion"  means the  number  of Shares a  Shareholder  holds
(either Purchased Shares or non-Purchased Shares, as the case may be) multiplied
by a fraction,  the numerator of which is the number of Shares to be sold by the
DLJ Entities and the Institutional  Shareholders and their Permitted Transferees
in a Public Offering and the denominator of which is the total number of Shares,
on a Fully  Diluted  basis,  held in the  aggregate  by the DLJ Entities and the
Institutional  Shareholders and their Permitted Transferees prior to such Public
Offering.

         "Public  Offering"  means any primary or secondary  public  offering of
Common  Stock  pursuant  to  an  effective   registration  statement  under  the
Securities  Act  other  than  pursuant  to a  registration  statement  filed  in
connection  with  a  transaction  of  the  type  described  in  Rule  145 of the
Securities Act or for the purpose of issuing securities  pursuant to an employee
benefit plan.

         "Purchased  Shares"  means  those  Shares  purchased  by  a  Management
Shareholder  on the  Closing  Date  for  cash  and/or  with  the  proceeds  of a
promissory note of the type  contemplated by the DecisionOne  Direct  Investment
Plan.

         "Registrable  Securities"  means  at  any  time,  with  respect  to any
Shareholder or its Permitted Transferees,  any shares of Common Stock then owned
by such  Shareholder  or its  Permitted  Transferees  until  (i) a  registration
statement  covering such  securities has been declared  effective by the SEC and
<PAGE>  
such  securities  have  been  disposed  of  pursuant  to such  effective
registration  statement,  (ii) such securities are sold under  circumstances  in
which all of the  applicable  conditions of Rule 144 (or any similar  provisions
then in force) under the Securities  Act are met or such  securities may be sold
pursuant to Rule 144(k) or (iii) such securities are otherwise transferred,  the
Company has delivered a new  certificate or other evidence of ownership for such
securities not bearing the legend  required  pursuant to this Agreement and such
securities may be resold without  subsequent  registration  under the Securities
Act.

         "Registration  Expenses"  means (i) all  registration  and filing fees,
(ii) fees and expenses of compliance with securities or blue sky laws (including
reasonable  fees and  disbursements  of  counsel  in  connection  with  blue sky
qualifications  of the securities  registered),  (iii) printing  expenses,  (iv)
internal expenses of the Company (including,  without  limitation,  all salaries
and  expenses of its  officers  and  employees  performing  legal or  accounting
duties),  (v) reasonable fees and  disbursements  of counsel for the Company and
customary  fees  and  expenses  for  independent  certified  public  accountants
retained by the Company  (including  expenses relating to any comfort letters or
costs associated with the delivery by independent  certified public  accountants
of a comfort letter or comfort  letters  requested  pursuant to Section  5.04(g)
hereof),  (vi) the reasonable fees and expenses of any special experts  retained
by the Company in connection with such  registration,  (vii) reasonable fees and
expenses  of up to  one  counsel  for  the  Shareholders  participating  in  the
offering, (viii) fees and expenses in connection with any review of underwriting
arrangements  by the National  Association  of  Securities  Dealers,  Inc.  (the
"NASD") including fees and expenses of any "qualified  independent  underwriter"
and (ix) fees and  disbursements of underwriters  customarily paid by issuers or
sellers of securities, but shall not include any underwriting fees, discounts or
commissions  attributable  to  the  sale  of  Registrable  Securities,   or  any
out-of-pocket  expenses  (except  as set  forth in  clause  (vii)  above) of the
Shareholders or any fees and expenses of underwriter's counsel.

         "Restriction Termination Date" means the fourth anniversary of the
Closing Date.

         "Roll-Over  Option"  means  an  option  granted  by  the  Company  to a
Management  Shareholder  prior to the Merger which option, at the effective time
of the Merger,  was converted into an option to purchase  shares of Common Stock
of the surviving corporation.

         "Section  4.03  Portion"  means  the pro  rata  portion  of any  Equity
Securities  proposed  to  be  issued  by  the  Company  with  respect  to  which
Shareholders shall be entitled to exercise their rights under Section 4.03,

         (a) in the  case of any  Institutional  Shareholder,  based  upon  such
Institutional  Shareholder's  Initial  Ownership  of shares of Common Stock as a
<PAGE> percentage of the sum of (i) the Initial Ownership of Common Stock of the
DLJ Entities and all  Institutional  Stockholders  and (ii) the Adjusted Initial
Ownership of all Management Stockholders, or

         (b)  in the  case  of  any  Management  Shareholder,  based  upon  such
Management Shareholder's Adjusted Initial Ownership of shares of Common Stock as
a percentage of the sum of (i) the Initial Ownership of the DLJ Entities and the
Institutional  Shareholders  and  (ii) the  Adjusted  Initial  Ownership  of all
Management Shareholders.

         "Section 4.04 Portion"  means,  with respect to any  Shareholder at any
time,  the  number of shares of common  stock  purchased  by DLJ  Entities  in a
transaction subject to Section 4.04, multiplied by a fraction,  the numerator of
which is (i) the number of shares of Common Stock on a Fully  Diluted basis that
such Shareholder beneficially owns at such time, and the denominator of which is
(ii) the  total  number  of shares  of  Common  Stock on a Fully  Diluted  basis
beneficially owned at such time by all Other Shareholders and the DLJ Entities.

         "SEC" means the Securities and Exchange Commission.

         "Securities Act" means the Securities Act of 1933, as amended.

         "Shareholder" means each Person (other than the Company) who shall be a
party to this  Agreement,  whether in connection with the execution and delivery
hereof as of the date hereof,  pursuant to Section 7.03 or otherwise, so long as
such Person shall beneficially own any Common Stock.

         "Shares" means shares of Common Stock held by the Shareholders.

         "Sprout Entities" means DLJ Capital, Sprout, Sprout CEO Fund, and their
Permitted Transferees.

         "Subject  Securities" means the Common Stock  beneficially owned by the
Management  Shareholders and  Institutional  Shareholders to be transferred in a
Section 4.02 Sale.

         "Subscription  Agreement" means the Subscription Agreement of even date
herewith  among Quaker  Holding  Co.,  the DLJ  Entities  and the  Institutional
Investors.

         "Subsidiary"  means,  with  respect to any Person,  any entity of which
securities or other ownership  interests having ordinary voting power to elect a
majority of the board of directors or other persons performing similar functions
are at the time directly or indirectly owned by such Person.

<PAGE>
         "THL  Entities"  means THL, THL Foreign Fund, THL  Co-Investors  A, THL
Co-Investors B, and their Permitted Transferees.

         "Tag-Along  Portion"  means the  number of shares of Common  Stock held
(or,  without  duplication,  that such Shareholder has the right to acquire from
any Person) by the Tagging  Person or the  Selling  Person,  as the case may be,
multiplied  by a  fraction,  the  numerator  of which is the number of shares of
Common Stock proposed to be sold by the Selling Person pursuant to Section 4.01,
and the  denominator of which is the aggregate  number of shares of Common Stock
on a Fully Diluted basis owned by all Shareholders.

         "Third  Party"  means a  prospective  purchaser  of Common  Stock in an
arm's-length  transaction  from a  Shareholder  where  such  purchaser  is not a
Permitted Transferee of such Shareholder.

         "Underwritten  Public  Offering"  means a  firmly  underwritten  public
offering  of  Registrable  Securities  of the Company  pursuant to an  effective
registration statement under the Securities Act.

         (b)     Each of the following terms is defined in the Section set forth
opposite such term:


Term                                              Section

Cause                                             2.02
Confidential Information                          6.01(b)
Demand Registration                               5.01(a)
Drag-Along Rights                                 4.02(a)
Holders                                           5.01(a)(ii)
Incidental Registration                           5.02(a)
Indemnified Party                                 5.07
Indemnifying Party                                5.07
Inspectors                                        5.04(g)
Maximum Offering Size                             5.01(e)
Nominee                                           2.03(a)
Piggyback Registration                            5.02(a)
Public Offering Limitations                       3.05(a)
Records                                           5.04(g)
Representatives                                   6.01(b)
Section 4.01 Response Notice                      4.01(a)
Section 4.02 Sale                                 4.02(a)
Section 4.02 Notice                               4.02(a)
Section 4.02 Sale Price                           4.02(a)
Section 4.02 Notice Period                        4.02(a)
Section 4.03 Notice                               4.03
Section 4.03 Portion                              4.03
Section 4.04 Notice                               4.04
Selling Person                                    4.01(a)
Selling Shareholder                               5.01(a)
Shareholder                                       7.03
Tag-Along Notice                                  4.01(a)
Tag-Along Notice Period                           4.01(a)
Tag-Along Offer                                   4.01(a)
Tag-Along Right                                   4.01(a)
Tag-Along Sale                                    4.01(a)
Tagging Person                                    4.01(a)
Transfer                                          3.01(a)
Trigger Date                                      6.05
<PAGE>
                                    ARTICLE 2

                       CORPORATE GOVERNANCE AND MANAGEMENT

         SECTION  2.01.  Composition  of the Board.  The Board shall  consist of
seven members,  of whom four shall be nominated by DLJMB, two shall be nominated
by DLJMB and shall be individuals which are not "Affiliates" or "Associates" (as
those terms are used  within the meaning of Rule 12b-2 of the General  Rules and
Regulations  under the Exchange Act) of any Shareholder or its  Affiliates,  and
one shall be nominated by the Management Shareholders. Each Shareholder entitled
to vote for the  election of directors to the Board agrees that it will vote its
shares of Common  Stock or  execute  consents,  as the case may be, and take all
other necessary action (including  causing the Company to call a special meeting
of  shareholders) in order to ensure that the composition of the Board is as set
forth in this Section 2.01;  provided that, no Shareholder  shall be required to
vote for  another  Shareholder's  nominee(s)  if the  number of shares of Common
Stock held by the Shareholder or group of  Shareholders,  as applicable,  making
the nomination  (or, in the case of a nomination by DLJMB,  of the DLJ Entities)
is, at the close of  business on the day  preceding  such vote or  execution  of
consents,  less than 10% of such Shareholder's or group of Shareholders' (or the
DLJ  Entities'),  as  applicable,  Initial  Ownership of Common Stock on a Fully
Diluted basis.

         SECTION 2.02. Removal. Each Shareholder agrees that if, at any time, it
is then  entitled to vote for the removal of directors  of the Company,  it will
not vote any of its  shares  of  Common  Stock  in favor of the  removal  of any
director who shall have been  designated  or nominated  pursuant to Section 2.01
unless such removal shall be for Cause or the Person(s) entitled to designate or
nominate such director shall have consented to such removal in writing, provided
that if the Persons  entitled to designate or nominate any director  pursuant to
Section 2.01 shall request the removal,  with or without Cause, of such director
in writing,  such Shareholder  shall vote its shares of Common Stock in favor of
such removal.


<PAGE>



Removal for "Cause" shall mean removal of a director  because of such director's
(a) willful and continued  failure  substantially to perform his duties with the
Company in his established  position,  (b) willful conduct which is injurious to
the Company or any of its Subsidiaries,  monetarily or otherwise, (c) conviction
for, or guilty plea to, a felony or a crime  involving moral  turpitude,  or (d)
abuse of illegal drugs or other controlled substances or habitual intoxication.

     SECTION 2.03. Vacancies. If, as a result of death, disability,  retirement,
resignation,  removal (with or without Cause) or otherwise, there shall exist or
occur any vacancy on the Board:

          (a) The  Shareholder(s)  entitled  under Section 2.01 to nominate such
director whose death, disability, retirement, resignation or removal resulted in
such vacancy,  may, subject to the provisions of Section 2.01,  nominate another
individual  (the  "Nominee") to fill such vacancy and serve as a director of the
Company; and

          (b) each  Shareholder  then  entitled to vote for the  election of the
Nominee  as a director  of the  Company  agrees  that it will vote its shares of
Common  Stock,  or  execute a written  consent,  as the case may be, in order to
ensure that the Nominee be elected to the Board;  provided  that, no Shareholder
shall be required  to vote for  another  party's  Nominee(s)  if the  Percentage
Ownership of the Shareholder or group of Shareholders, as applicable, making the
nomination (or, in the case of a nomination by DLJMB,  of the DLJ Entities),  at
the close of business of the day  preceding  such vote or execution of consents,
is less  than 10% on a Fully  Diluted  basis of such  Shareholder's  or group of
Shareholders' (or the DLJ Entities'), as applicable, Initial Ownership of Common
Stock.

         SECTION  2.04.  Action by the  Board.  (a) A quorum of the Board  shall
consist  initially of four directors;  provided that DLJMB shall have the right,
in its sole discretion,  until such time as the Percentage  Ownership of the DLJ
Entities is less than 10% on a Fully Diluted basis of the DLJ Entities'  Initial
Ownership  of Common  Stock,  to increase or  decrease  the number of  directors
necessary to constitute a quorum.

         (b) All actions of the Board shall require the  affirmative  vote of at
least a majority of the  directors  at a duly  convened  meeting of the Board at
which a quorum  is  present  or the  unanimous  written  consent  of the  Board;
provided  that,  in the event there is a vacancy on the Board and an  individual
has been nominated to fill such vacancy, the first order of business shall be to
fill such vacancy.

     SECTION 2.05.  Conflicting  Charter or Bylaw  Provision.  Each  Shareholder
shall  vote its  shares  of Common  Stock,  and  shall  take all  other  actions
reasonably necessary,  to ensure that the Company's certificate of incorporation

<PAGE>
and bylaws  copies of which are attached  hereto as Exhibits A and B) facilitate
and do not at any time conflict with any provision of this Agreement.



                                    ARTICLE 3

                            RESTRICTIONS ON TRANSFER

         SECTION 3.01. General. (a) Each Shareholder understands and agrees that
the  Common  Stock  purchased  pursuant  to the  Subscription  Agreement  or the
DecisionOne  Direct  Investment  Program  have not  been  registered  under  the
Securities Act and are restricted  securities.  Each Shareholder  agrees that it
will not, directly or indirectly,  sell, assign, transfer, grant a participation
in, pledge or otherwise dispose of ("transfer") any Common Stock (or solicit any
offers to buy or otherwise acquire, or take a pledge of any Common Stock) except
in  compliance  with the  Securities  Act and the terms and  conditions  of this
Agreement.

          (b) Any attempt to transfer  any Common Stock not in  compliance  with
this Agreement shall be null and void and the Company shall not, and shall cause
any transfer  agent not to, give any effect in the  Company's  stock  records to
such attempted transfer.

     SECTION  3.02.  Legends.  (a) In addition  to any other  legend that may be
required,  each  certificate  for  shares of Common  Stock that is issued to any
Shareholder shall bear a legend in substantially the following form:

     "THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED,  OR ANY STATE  SECURITIES LAWS AND MAY NOT BE OFFERED OR SOLD EXCEPT IN
COMPLIANCE THEREWITH.  THIS SECURITY IS ALSO SUBJECT TO ADDITIONAL  RESTRICTIONS
ON TRANSFER AS SET FORTH IN THE INVESTORS' AGREEMENT DATED AS OF AUGUST 7, 1997,
COPIES OF WHICH MAY BE OBTAINED UPON REQUEST FROM DECISIONONE  HOLDINGS CORP. OR
ANY SUCCESSOR THERETO."

          (b) If any Common Stock shall cease to be Registrable Securities under
clause (i) or clause (ii) of the definition thereof, the Company shall, upon the
written  request of the holder  thereof,  issue to such holder a new certificate
evidencing  such  shares  without the first  sentence of the legend  required by
Section 3.02(a) endorsed thereon. If any Common Stock cease to be subject to any
and all restrictions on transfer set forth in this Agreement, the Company shall,
upon the  written  request of the  holder  thereof,  issue to such  holder a new
certificate  evidencing  such Common  Stock  without the second  sentence of the
legend required by Section 3.02(a) endorsed thereon.



<PAGE>



         SECTION 3.03. Permitted Transferees.  Notwithstanding  anything in this
Agreement to the contrary,  any  Shareholder may at any time transfer any or all
of its Common  Stock to one or more of its  Permitted  Transferees  without  the
consent  of the  Board or any other  Shareholder  or group of  Shareholders  and
without  compliance  with  Sections  3.04,  3.05  and  4.01 so long as (a)  such
Permitted  Transferee  shall have  agreed in writing to be bound by the terms of
this  Agreement  and (b) the  transfer to such  Permitted  Transferee  is not in
violation of applicable federal or state securities laws.

         SECTION 3.04.  Restrictions on Transfers by Institutional Shareholders.
(a) Except as provided in Section 3.03, each Institutional Shareholder and each
Permitted Transferee of such Institutional Shareholder may transfer its Common
Stock only as follows:

          (i)   in a transfer made in compliance with Section 4.01 or 4.02;

         (ii)   in a Public Offering in connection with the exercise of its
         rights under Article 5 hereof; or

        (iii)  following  the  earlier  to occur  of (i) the  date on which  the
         Percentage Ownership of such Institutional Shareholder is less than 25%
         of  its  Initial  Ownership  of  Common  Stock  and  (ii)  the  seventh
         anniversary  of the Closing  Date, to any Person other than any Adverse
         Person.

          (b) The restrictions set forth in Section 3.04(a)(i) and (a)(ii) shall
terminate at such time as aggregate Percentage Ownership of the DLJ Entities and
their  Permitted  Transferees  is  equal to or less  than  50% of the  aggregate
Initial Ownership of Common Stock of DLJ Entities.

         SECTION 3.05.  Restrictions on Transfers by Management Shareholders.
(a) Except as provided in Section 3.03, each Management Shareholder and each
Permitted Transferee of such Management Shareholder may transfer its Common
Stock only as follows:

          (i)   in a transfer made in compliance with Section 4.01 or 4.02;

         (ii) subject to the Public Offering  Limitations (as defined below), in
         a Public  Offering in connection  with the exercise of its rights under
         Article 5 hereof;

        (iii) 180 days  following a Public  Offering,  to any Third Party,  in a
         transfer  made in  compliance  with  Rule  144  promulgated  under  the
         Securities  Act;   provided,   however,   that  until  the  Restriction
         Termination   Date,  the  Percentage   Ownership  of  such   Management
         Shareholder  as a result of such  transfer  shall be equal to or exceed
         the  greater  of  (x)  50% of  such  Management  Shareholder's  Initial
         Ownership of Common Stock and


<PAGE>



         (y) a percentage of such  Management  Shareholder's  Initial  Ownership
         equal  to the  Remaining  Percentage.  For  purposes  of  this  Section
         3.05(a)(iii),  "Remaining Percentage" means the Percentage Ownership of
         the DLJ Entities and the Institutional  Investors  immediately prior to
         such proposed transfer pursuant to this Section 3.05(a)(iii) calculated
         by subtracting  from the Initial  Ownership of the DLJ Entities and the
         Institutional   Investors   the  number  of  shares  of  Common   Stock
         theretofore  transferred  by the DLJ  Entities  and  the  Institutional
         Investors; or

         (iv)  following the  Restriction  Termination  Date, to any Third Party
other  than an  Adverse  Person  for  consideration  consisting  solely of cash,
provided,  however,  that the number of Shares  transferred  by such  Management
Shareholder  pursuant to this Section  3.05(a)(iv)  in any  twelve-month  period
shall not exceed 20% of such Management  Shareholder's  Percentage  Ownership at
the beginning of such twelve month period.

         For purposes of this Agreement, "Public Offering Limitations" means (A)
except as set forth in the proviso at the end of this  paragraph,  no Management
Shareholder  shall be permitted to exercise its rights under Section 5.02 hereof
(x) with  respect to the First  Public  Offering  and (y) until such time as the
Percentage Ownership of the DLJ Entities and the Institutional  Shareholders and
their Permitted  Transferees  shall be less than 50% of their aggregate  Initial
Ownership of Common Stock and (B) in each Public  Offering  following  the First
Public  Offering,  such Management  Shareholder  shall be entitled to transfer a
number of Shares not exceeding such Management Shareholder's Pro Rata Portion of
non- Purchased Shares; provided,  however, that notwithstanding the restrictions
set forth in clauses (A) and (B), each Management Shareholder shall be permitted
to  exercise  its  rights  pursuant  to Section  5.02  hereof in respect of such
Management  Shareholder's Pro Rata Portion of its Purchased Shares in any Public
Offering and transfer such Purchased Shares pursuant to Section 3.05(a)(ii).

          (b) The  provisions  of  Section  3.05(a)  shall  terminate  upon  the
earliest  to  occur  of (i) one or more  Public  Offerings  of  Shares  yielding
aggregate gross proceeds of at least  $100,000,000,  (ii) the fourth anniversary
of the Closing Date and (iii) a Change of Control. Notwithstanding the foregoing
sentence,  the provisions of Section 3.05(a) shall not terminate with respect to
any Management Shareholder's Shares which shall have been pledged to the Company
as security in connection with any  indebtedness for borrowed money owed by such
Management  Shareholder to the Company unless the proceeds from the sale of such
Shares,  net of any taxes due on such  proceeds,  are  applied to repay the such
indebtedness in full.




<PAGE>



                                    ARTICLE 4

                     TAG-ALONG RIGHTS; DRAG-ALONG RIGHTS; PREEMPTIVE RIGHTS

         SECTION 4.01.  Rights to Participate  in Transfer.  (a) If DLJ Entities
(the "Selling  Person")  propose to transfer  (other than transfers of shares of
Common Stock (i) in a Public Offering,  (ii) to any Permitted  Transferee of any
of the DLJ Entities or (iii) up to 2.5% in the  aggregate of the  securities  of
such class outstanding on the date of the first transfer of any shares of Common
Stock by any of the DLJ Entities (such percentage, the "Free Percentage")), in a
transaction  otherwise  permitted by Article 3 hereof, (a "Tag-Along Sale"), the
Other  Shareholders  may, at their option,  elect to exercise their rights under
this Section 4.01 (each such Shareholder,  a "Tagging Person").  In the event of
such  a  proposed  transfer,   the  Selling  Person  shall  provide  each  Other
Shareholder written notice of the terms and conditions of such proposed transfer
("Tag-Along   Notice")  and  offer  each  Tagging  Person  the   opportunity  to
participate  in such sale.  The  Tag-Along  Notice shall  identify the number of
shares of Common Stock subject to the offer ("Tag-Along  Offer"), the cash price
at which the transfer is proposed to be made,  and all other  material terms and
conditions of the Tag-Along Offer, including the form of the proposed agreement,
if any. From the date of the Tag-Along  Notice,  each Tagging  Person shall have
the right (a "Tag- Along Right"),  exercisable by written notice  ("Section 4.01
Response  Notice")  given to the  Selling  Person  within 5  Business  Days (the
"Tag-Along  Notice  Period"),  to request that the Selling Person include in the
proposed  transfer  the  number  of  Shares  held by such  Tagging  Person as is
specified  in such  notice;  provided  that if the  aggregate  number  of Shares
proposed  to be sold by the  Selling  Person  and all  Tagging  Persons  in such
transaction  exceeds  the  number of  Shares  which can be sold on the terms and
conditions set forth in the Tag-Along Notice, then only the Tag-Along Portion of
Shares of the Selling  Person and each Tagging  Person shall be sold pursuant to
the Tag-Along  Offer.  In the event the DLJ Entities shall propose to transfer a
number of Shares in excess of the Free Percentage,  the Tag-Along  Portion shall
be calculated  with respect to all of the Shares  proposed to be  transferred by
the DLJ  Entities.  If the  Tagging  Persons  exercise  their  Tag-Along  Rights
hereunder,  each Tagging  Person shall  deliver,  together with its Section 4.01
Response  Notice,   to  the  Selling  Person  the  certificate  or  certificates
representing  the Shares of such Tagging  Person to be included in the transfer,
together  with a limited  power-of-attorney  authorizing  the Selling  Person to
transfer  such  Shares on the terms set  forth in the  Tag-Along  Notice.  It is
understood  that to the extent the DLJ Entities can do so without  affecting the
other terms on which the Tag-Along Sale is proposed to be made, the DLJ Entities
will  seek to  exclude  from the  terms  of such  Tag-Along  Sale  any  material
restrictions  on the ability,  following  such  Tag-Along  Sale,  of any Tagging
Person to  conduct  its  business  in a manner  consistent  with past  practice.
Delivery  of such  certificate  or  certificates  representing  the Shares to be
transferred and the limited power-of-attorney  authorizing the Selling Person to
transfer such Shares shall constitute an irrevocable acceptance of the Tag-Along
Offer by such  Tagging  Persons.  If, at the end of a 120 day period  after such
delivery, the Selling


<PAGE>



Person has not  completed the transfer of all such Shares on  substantially  the
same terms and conditions set forth in the Tag-Along Notice,  the Selling Person
shall  return to each  Tagging  Person the  limited  power-of-attorney  (and all
copies thereof)  together with all  certificates  representing  the Shares which
such Tagging Person delivered for transfer pursuant to this Section 4.01.

          (b)  Concurrently  with the  consummation  of the Tag-Along  Sale, the
Selling  Person shall  notify the Tagging  Persons  thereof,  shall remit to the
Tagging  Persons the total  consideration  (by bank or certified  check) for the
Shares of the Tagging Persons transferred pursuant thereto, and shall,  promptly
after the consummation of such Tag-Along Sale furnish such other evidence of the
completion  and time of completion of such transfer and the terms thereof as may
be reasonably requested by the Tagging Persons.

          (c) If at the  termination of the Tag-Along  Notice Period any Tagging
Person shall not have elected to participate in the Tag-Along Sale, such Tagging
Person  will be deemed to have  waived its rights  under  Section  4.01(a)  with
respect to the transfer of its securities pursuant to such Tag-Along Sale.

          (d) If any Tagging Person declines to exercise its Tag-Along Rights or
elects to exercise its  Tag-Along  Rights with respect to less than such Tagging
Person's  Tag-Along  Portion,  the DLJ  Entities  shall be entitled to transfer,
pursuant to the  Tag-Along  Offer,  a number of Shares held by the DLJ  Entities
equal to the number of Shares  constituting the portion of such Tagging Person's
Tag-Along Portion with respect to which Tag-Along Rights were not exercised.

          (e) The DLJ Entities and any Tagging Person who exercises the TagAlong
Rights  pursuant to this  Section  4.01 may sell the Shares  subject to the Tag-
Along  Offer on the  terms and  conditions  set  forth in the  Tag-Along  Notice
(provided,  however, that the cash price payable in any such sale may exceed the
cash price  specified in the  Tag-Along  Notice by up to 10%) within 120 days of
the date on which Tag-Along Rights shall have been waived, exercised or expire.

         SECTION 4.02. Right to Compel  Participation in Certain Transfers.  (a)
If (i) the DLJ Entities  propose to transfer not less than 50% of their  Initial
Ownership  of Common  Stock to a Third  Party in a bona fide sale,  (ii) the DLJ
Entities  propose a transfer  in which the Shares to be  transferred  by the DLJ
Entities,  the  Institutional   Shareholders  and  their  Permitted  Transferees
constitute more than 50% of the  outstanding  shares of Common Stock (a "Section
4.02 Sale"), the DLJ Entities may at their option require all Other Shareholders
to sell the Subject  Securities  ("Drag-Along  Rights") then held by every Other
Shareholder,  and  (subject to and at the  closing of the Section  4.02 Sale) to
exercise  all,  but not less  than  all,  of the  options  held by  every  Other
Shareholder  and to sell all of the shares of Common  Stock  received  upon such
exercise to such Third  Party,  for the same  consideration  per share of Common
Stock and  otherwise  on the same  terms  and  conditions  as the DLJ  Entities;
provided that any


<PAGE>



Other  Shareholder  who holds  options the exercise  price per share of which is
greater than the per share price at which the Shares are to be sold to the Third
Party may, if required by the DLJ Entities to exercise such options, in place of
such exercise,  submit to irrevocable cancellation thereof without any liability
for payment of any exercise price with respect thereto. In the event the Section
4.02 Sale is not  consummated  with respect to any shares acquired upon exercise
of such options, or the Section 4.02 Sale is not consummated, such options shall
be deemed not to have been exercised or cancelled,  as  applicable.  DLJMB shall
provide  written notice of such Section 4.02 Sale to the Other  Shareholders  (a
"Section 4.02 Notice") not later than the 15th day prior to the proposed Section
4.02 Sale. The Section 4.02 Notice shall identify the transferee,  the number of
Subject  Securities,  the  consideration  for which a transfer is proposed to be
made (the "Section 4.02 Sale Price") and all other material terms and conditions
of the  Section  4.02 Sale.  The number of shares of Common  Stock to be sold by
each Other  Shareholder  will be the Drag-Along  Portion of the shares of Common
Stock that such Other Shareholder owns.  Subject to Section 4.02(d),  each Other
Shareholder  shall be required to  participate  in the Section  4.02 Sale on the
terms and  conditions set forth in the Section 4.02 Notice and to tender all its
Subject  Securities as set forth below.  It is understood that to the extent the
DLJ  Entities can do so without  affecting  the other terms on which the Section
4.02 Sale is proposed to be made, the DLJ Entities will seek to exclude from the
terms of such  Section  4.02  Sale any  material  restrictions  on the  ability,
following  such  Section  4.02 Sale,  of any Other  Shareholder  to conduct  its
business in a manner  consistent  with past practice.  The price payable in such
transfer  shall be the  Section  4.02 Sale  Price.  Not later  than the 10th day
following  the  date of the  Section  4.02  Notice  (the  "Section  4.02  Notice
Period"),  each of the Other  Shareholders  shall deliver to a representative of
DLJMB  designated  in the Section  4.02  Notice  certificates  representing  all
Subject Securities held by such Other Shareholder,  duly endorsed, together with
all other documents required to be executed in connection with such Section 4.02
Sale or, if such delivery is not permitted by applicable  law, an  unconditional
agreement to deliver such  Subject  Securities  pursuant to this Section 4.02 at
the  closing  for  such  Section  4.02  Sale  against  delivery  to  such  Other
Shareholder of the consideration  therefor.  If an Other Shareholder should fail
to deliver such  certificates  to DLJMB,  the Company  shall cause the books and
records of the  Company to show that such  Subject  Securities  are bound by the
provisions  of this  Section  4.02 and that  such  Subject  Securities  shall be
transferred  to  the  purchaser  of  the  Subject  Securities  immediately  upon
surrender for transfer by the holder thereof.

          (b) The DLJ  Entities  shall have a period of 90 days from the date of
receipt of the Section  4.02 Notice to  consummate  the Section 4.02 Sale on the
terms and conditions set forth in such Section 4.02 Sale Notice.  If the Section
4.02 Sale shall not have been consummated during such period, DLJMB shall return
to each of the Other Shareholders all certificates representing Shares that such
Other  Shareholder  delivered for transfer  pursuant  hereto,  together with any
documents in the possession of DLJMB executed by the Other Shareholder in


<PAGE>



connection  with such proposed  transfer,  and all the  restrictions on transfer
contained in this Agreement or otherwise applicable at such time with respect to
Common Stock owned by the Other Shareholders shall again be in effect.

          (c)  Concurrently  with the  consummation  of the  transfer  of Shares
pursuant  to  this  Section  4.02,  DLJMB  shall  give  notice  thereof  to  all
Shareholders, shall remit to each of the Shareholders who have surrendered their
certificates the total consideration (by bank or certified check) for the Shares
transferred  pursuant  hereto  and shall  furnish  such  other  evidence  of the
completion  and time of completion of such transfer and the terms thereof as may
be reasonably requested by such Shareholders.

          (d)  Notwithstanding  any provision of this Agreement to the contrary,
in the event the terms on which a Section 4.02 Sale is proposed to be made shall
include a provision  which  materially and adversely  affects the ability of any
Other  Shareholder to compete in any line of business or geographic  area,  such
Other  Shareholder shall not be required to participate in the Section 4.02 Sale
on the terms and conditions  set forth in the Section 4.02 Notice.  In the event
any  Shareholder  shall  elect,  pursuant  to  the  preceding  sentence,  not to
participate  in the Section 4.02 Sale,  the DLJ Entities shall have the right to
purchase,  and such Shareholder  shall be obligated to sell to the DLJ Entities,
such  Shareholder's  Subject  Securities,  at the Section 4.02 Sale Price and on
substantially  the same terms (other than any such non-compete  provision),  not
later than immediately prior to the consummation of the Section 4.02 Sale.

         SECTION  4.03.  Preemptive  Rights.  (a) The Company shall provide each
Shareholder  with a written  notice (a "Section  4.03  Notice") of any  proposed
issuance  by the  Company  of Equity  Securities  at least 10 days  prior to the
proposed  issuance date. Such notice shall specify the price at which the Equity
Securities are to be issued and the other material terms of the issuance. In the
event the DLJ Entities  propose to purchase any such Equity  Securities from the
Company,  each Other Shareholder shall be entitled to purchase, at the price and
on the  terms  at  which  the DLJ  Entities  propose  to  purchase  such  Equity
Securities and specified in such Section 4.03 Notice, such Shareholder's Section
4.03 Portion of the Equity  Securities  proposed to be issued. A Shareholder may
exercise its rights under this Section 4.03 by delivering  written notice of its
election to purchase  Equity  Securities  to the  Company,  DLJMB and each Other
Shareholder  within 5 days of receipt of the Section 4.03 Notice.  A delivery of
such a written  notice  (which  notice  shall  specify  the number of shares (or
amount) of Equity Securities to be purchased by the Shareholder  submitting such
notice)  by such  Shareholder  shall  constitute  a  binding  agreement  of such
Shareholder  to  purchase,  subject to the purchase by the DLJ Entities of their
portion of such Equity  Securities,  at the price and on the terms  specified in
the Section 4.03 Notice,  the number of shares (or amount) of Equity  Securities
specified  in  such  Shareholder's  written  notice.  In the  event  the  Equity
Securities  proposed to be issued by the Company are not shares of Common Stock,
it shall be a condition to


<PAGE>



the  consummation  of the  purchase of such Equity  Securities  pursuant to this
Section 4.03 by any Shareholder that such Shareholder shall execute an amendment
of this  Agreement  on the  terms  consistent  with  this  Agreement  reasonably
satisfactory to the Company and the DLJ Entities.

          (b) In the  event any  Other  Shareholder  declines  to  exercise  its
preemptive rights under this Section 4.03 or elects to exercise such rights with
respect to less than such Shareholder's  Section 4.03 Portion,  the DLJ Entities
shall be entitled to purchase  from the Company the number of Equity  Securities
constituting  the  Section  4.03  Portion  with  respect  to  which  such  Other
Shareholder shall not have exercised its preemptive rights.

          (c) In the case of any  issuance  of Equity  Securities,  the  Company
shall have 90 days from the date of the Section  4.03 Notice to  consummate  the
proposed issuance of any or all of such Equity Securities which the Shareholders
have not elected to purchase at the price and upon terms that are not materially
less  favorable to the Company than those  specified in the Section 4.03 Notice.
At the  consummation  of such  issuance,  the Company  shall issue  certificates
representing  the  Equity   Securities  to  be  purchased  by  each  Shareholder
exercising  preemptive  rights  pursuant to this Section 4.03  registered in the
name of such  Shareholder,  against payment by such  Shareholder of the purchase
price for such  Equity  Securities.  If the  Company  proposes  to issue  Equity
Securities  after such 90-day period,  it shall again comply with the procedures
set forth in this Section.

         (d) Notwithstanding the foregoing,  no Shareholder shall be entitled to
purchase  Equity  Securities as  contemplated by this Section 4.03 in connection
with  issuances  of Equity  Securities  (i) to  employees  of the Company or any
Subsidiary  pursuant to employee  benefit plans or arrangements  approved by the
Board  (including  upon  the  exercise  of  employee  stock  options),  (ii)  in
connection with any bona fide, arm's-length restructuring of outstanding debt of
the  Company  or any  Subsidiary,  or (iii) in  connection  with any bona  fide,
arm'slength direct or indirect merger,  acquisition or similar transaction.  The
Company shall not be under any obligation to consummate any proposed issuance of
Equity Securities,  regardless of whether it shall have delivered a Section 4.03
Notice in respect of such proposed issuance.

          (e) The Company  will use its  reasonable  best efforts to provide the
Section 4.03 Notice at least 15 Business Days prior to any proposed  issuance of
Equity Securities.  In the event it is impracticable to provide the Section 4.03
Notice at least 15 Business Days prior to such  issuance,  any  Shareholder  may
offer to finance or arrange to finance the purchase by any other  Shareholder of
such other  Shareholder's  Section 4.03 Portion and such  financing or arranging
Shareholder  shall be  entitled  to receive as  compensation  for such  services
reasonable  and customary fees and expenses.  No Shareholder  shall be under any
obligation to provide or arrange such financing for any other Shareholder.



<PAGE>



         SECTION 4.04. Certain Other Purchases of Common Stock. In the event, at
any time prior to the Trigger Date, the DLJ Entities shall acquire any shares of
Common Stock from any Person other than the Shareholders, the DLJ Entities shall
deliver, within five Business Days of the date of such acquisition,  a notice to
each Other Shareholder (a "Section 4.04 Notice") specifying the number of shares
of Common Stock acquired and the weighted average of price per share paid by the
DLJ  Entities.  Such Section 4.04 Notice shall  constitute an offer to each such
Other  Shareholder  to purchase such  Shareholder's  Section 4.04 Portion of the
number of shares of Common Stock acquired by the DLJ Entities. A Shareholder may
exercise its rights under this Section 4.04 by delivering  written notice of its
election to purchase its Section  4.04 Portion  within 10 days of receipt of the
Section 4.04 Notice.  A delivery of such written notice (which shall specify the
number of shares of Common Stock to be purchased by the  Shareholder  submitting
such notice) by such Shareholder  shall  constitute a binding  agreement of such
Shareholder to purchase,  at the price and on the terms specified in the Section
4.04 Notice,  the number of shares of Common Stock specified in such notice.  At
the  consummation of the transfer of the shares of Common Stock purchased by the
DLJ Entities to any Shareholder that shall have exercised its rights  hereunder,
the DLJ Entities shall deliver to such Shareholder certificates representing the
shares of Common Stock to be purchased  against  payment by such  Shareholder of
the purchase price for such shares of Common Stock.



                                    ARTICLE 5


                               REGISTRATION RIGHTS

         SECTION 5.01. Demand  Registration.  (a) If the Company shall receive a
written  request by the DLJ Entities or their  Permitted  Transferees  (any such
requesting  Person,  a  "Selling  Shareholder")  that  the  Company  effect  the
registration  under  the  Securities  Act of all or a  portion  of such  Selling
Shareholder's  Registrable  Securities,  and specifying  the intended  method of
disposition thereof, then the Company shall promptly give written notice of such
requested  registration (a "Demand  Registration")  at least 5 days prior to the
anticipated  filing date of the registration  statement  relating to such Demand
Registration to the Other  Shareholders  and thereupon will use its best efforts
to effect, as expeditiously as possible,  the registration  under the Securities
Act of:

          (i)    the Registrable Securities which the Company has been so
         requested to register by the Selling Shareholders, then held by the
         Selling Shareholders; and

         (ii) subject to the  restrictions  set forth in Section 5.02, all other
         Registrable Securities of the same type as that to which the request by
         the Selling  Shareholders  relates which any Other Shareholder entitled
         to request the Company to effect a Piggyback Registration (as such term
         is


<PAGE>



         defined  in  Section   5.02)   pursuant  to  Section   5.02  (all  such
         Shareholders,  together with the Selling  Shareholders,  the "Holders")
         has  requested the Company to register by written  request  received by
         the Company  within 2 days (one of which shall be a Business Day) after
         the  receipt  by such  Holders  of such  written  notice  given  by the
         Company,

all to the extent  necessary to permit the  disposition  (in accordance with the
intended  methods thereof as aforesaid) of the  Registrable  Securities so to be
registered;  provided that, subject to Section 5.01(d) hereof, the Company shall
not be  obligated  to effect  more  than six  Demand  Registrations  for the DLJ
Entities; and provided further that the Company shall not be obligated to effect
a Demand Registration unless the aggregate proceeds expected to be received from
the  sale  of  the  Common  Stock  requested  to  be  included  in  such  Demand
Registration, in the reasonable opinion of DLJMB exercised in good faith, equals
or exceeds (x)  $50,000,000  if such Demand  Registration  would  constitute the
First Public  Offering,  or (y) $10,000,000 in all other cases. In no event will
the Company be required to effect more than one Demand  Registration  within any
four-month period.

          (b) Promptly after the  expiration of the 2-day period  referred to in
Section  5.01(a)(ii)  hereof,  the  Company  will  notify all the  Holders to be
included  in the  Demand  Registration  of the other  Holders  and the number of
Registrable   Securities   requested  to  be  included   therein.   The  Selling
Shareholders  requesting a registration  under Section  5.01(a) may, at any time
prior to the  effective  date of the  registration  statement  relating  to such
registration,  revoke  such  request,  without  liability  to any  of the  other
Holders,  by providing a written notice to the Company revoking such request, in
which case such request,  so revoked,  shall be considered a Demand Registration
unless  such  revocation  arose out of the fault of the  Company  or unless  the
participating  Shareholders  reimburse the Company for all costs incurred by the
Company in connection with such  registration,  in which case such request shall
not be considered a Demand Registration.

          (c)  The Company will pay all Registration Expenses in connection with
any Demand Registration.

          (d) A registration  requested  pursuant to this Section 5.01 shall not
be deemed to have been effected (i) unless the registration  statement  relating
thereto (A) has become  effective  under the Securities Act and (B) has remained
effective for a period of at least 180 days (or such shorter period in which all
Registrable  Securities  of the  Holders  included  in  such  registration  have
actually  been  sold  thereunder);  provided  that  if  after  any  registration
statement  requested  pursuant to this Section 5.01 becomes  effective  (x) such
registration statement is interfered with by any stop order, injunction or other
order or  requirement of the SEC or other  governmental  agency or court and (y)
less  than  75% of the  Registrable  Securities  included  in such  registration
statement has been sold  thereunder,  such  registration  statement shall not be
considered a Demand Registration, or (ii) if the


<PAGE>



Maximum  Offering Size (as defined below) is reduced in accordance  with Section
5.01(e) such that less than 66 2/3% of the Registrable Securities of the Selling
Shareholders sought to be included in such registration are included.

          (e) If a Demand Registration  involves an Underwritten Public Offering
and  the  managing   underwriter  shall  advise  the  Company  and  the  Selling
Shareholders  that,  in its  view,  (i) the  number  of  shares  of  Registrable
Securities  requested  to  be  included  in  such  registration  (including  any
securities  which the Company  proposes to be included which are not Registrable
Securities)  or (ii) the  inclusion of some or all of the shares of  Registrable
Securities owned by the Holders, in any such case, exceeds the largest number of
shares  which can be sold  without  having an adverse  effect on such  offering,
including  the price at which  such  shares can be sold (the  "Maximum  Offering
Size"),  the Company will include in such  registration,  in the priority listed
below, up to the Maximum Offering Size:

                       (A) first,  all  Registrable  Securities  requested to be
                  registered by the parties requesting such Demand  Registration
                  and all  Registrable  Securities  requested  to be included in
                  such registration by any other Holder (allocated, if necessary
                  for the offering not to exceed the Maximum  Offering Size, pro
                  rata among such Holders on the basis of the relative number of
                  Registrable  Securities  so  requested  to be included in such
                  registration); and

                       (B) second,  any securities  proposed to be registered by
                  the Company.

          (f) Upon written notice to each Selling  Shareholder,  the Company may
postpone effecting a registration  pursuant to this Section 5.01 on one occasion
during any period of six  consecutive  months for a reasonable time specified in
the notice but not  exceeding  90 days  (which  period  may not be  extended  or
renewed),  if (1) an  investment  banking firm of recognized  national  standing
shall advise the Company and the Selling  Shareholders in writing that effecting
the registration would materially and adversely affect an offering of securities
of such  Company the  preparation  of which had then been  commenced  or (2) the
Company is in possession of material  non-public  information  the disclosure of
which during the period  specified in such notice the Company  believes,  in its
reasonable judgment, would not be in the best interests of the Company.

          (g) After the Company has effected two Demand  Registrations  pursuant
to this Section 5.01 of Common Stock,  the Other  Shareholders,  upon request of
the Other  Shareholders  owning a majority  of the Shares  acquired by the Other
Shareholders on Closing Date, may request that the Company register Common Stock
which are Registrable  Securities then owned by such Other  Shareholders.  In no
event will the Company be required to effect more than one such Demand


<PAGE>



Registration.  The provisions of this Article 5 shall apply, mutatis mutandis,
to any such Demand Registration.

         SECTION 5.02.  Piggyback  Registration.  (a) If the Company proposes to
register any of its Common Stock under the Securities Act (including pursuant to
a Demand  Registration),  whether or not for sale for its own  account,  it will
each such time, subject to the provisions of Section 5.02(b) hereof, give prompt
written  notice  at least 5 days  prior to the  anticipated  filing  date of the
registration  statement  relating to such  registration to all  Shareholders and
their respective Permitted Transferees (or, in the case of a Demand Registration
requested by the DLJ Entities,  to all Other  Shareholders),  which notice shall
set forth such Shareholders'  rights under this Section 5.02 and shall offer all
Shareholders  the  opportunity  to include in such  registration  statement such
number of  shares  of Common  Stock as each  such  Shareholder  may  request  (a
"Piggyback Registration"). Upon the written request of any such Shareholder made
within 2 days (one of which shall be a Business Day) after the receipt of notice
from the Company  (which  request  shall  specify the number of shares of Common
Stock intended to be disposed of by such Shareholder),  the Company will use its
reasonable best efforts to effect the  registration  under the Securities Act of
all shares of Common  Stock which the Company has been so  requested to register
by such  Shareholders,  to the extent requisite to permit the disposition of the
shares  of  Common  Stock  so  to be  registered;  provided  that  (i)  if  such
registration  involves an Underwritten  Public Offering,  all such  Shareholders
requesting  to be  included  in  the  Company's  registration  must  sell  their
Registrable  Securities  to the  underwriters  selected  as  provided in Section
5.04(f) on the same terms and  conditions as apply to the Company or the Selling
Shareholder, as applicable, and (ii) if, at any time after giving written notice
of its  intention  to register any stock  pursuant to this  Section  5.02(a) and
prior to the effective date of the  registration  statement  filed in connection
with such  registration,  the  Company  shall  determine  for any  reason not to
register  such  stock,  the  Company  shall  give  written  notice  to all  such
Shareholders and, thereupon, shall be relieved of its obligation to register any
Registrable  Securities  in  connection  with such  registration;  and  provided
further  that the  right of the  Management  Shareholders  and  their  Permitted
Transferees  to request a Piggyback  Registration  will be subject to the Public
Offering  Limitations.  No  registration  effected under this Section 5.02 shall
relieve the Company of its  obligations to effect a Demand  Registration  to the
extent  required by Section 5.01 hereof.  The Company will pay all  Registration
Expenses  in  connection  with  each  registration  of  Registrable   Securities
requested pursuant to this Section 5.02.

          (b) If a  registration  pursuant  to this  Section  5.02  involves  an
Underwritten  Public Offering (other than in the case of an Underwritten  Public
Offering requested by the DLJ Entities in a Demand  Registration,  in which case
the provisions  with respect to priority of inclusion in such offering set forth
in Section 5.01(e) shall apply) and the managing underwriter advises the Company
that, in its view, the number of shares of Common Stock which the Company and


<PAGE>



the  selling  Shareholders  intend to include in such  registration  exceeds the
Maximum  Offering  Size, the Company will include in such  registration,  in the
following priority, up to the Maximum Offering Size:

          (i) first,  so much of the Common Stock  proposed to be registered for
         the  account of the  Company as would not cause the  offering to exceed
         the Maximum Offering Size; and

         (ii) second,  all  Registrable  Securities  requested to be included in
         such   registration  by  any  Shareholder   pursuant  to  Section  5.02
         (allocated,  if  necessary  for the  offering not to exceed the Maximum
         Offering  Size,  pro rata among such  Shareholders  on the basis of the
         relative number of shares of Registrable  Securities so requested to be
         included in such registration).

         SECTION  5.03.  Holdback  Agreements.  With  respect  to each and every
firmly underwritten Public Offering, each Shareholder agrees and their Permitted
Transferees  will agree not to offer or sell any shares of Common Stock  (except
for shares of Common Stock, if any, sold in that Public  Offering) during the 14
days prior to the effective date of the applicable  registration statement for a
public offering of shares of Common Stock (except as part of such  registration)
and during the period after such  effective date equal to the lesser of: (i) 180
days or (ii)  any such  shorter  period  as the  Company  and the lead  managing
underwriter of an Underwritten Public Offering agree.

         SECTION 5.04.  Registration  Procedures.  Whenever Shareholders request
that any Registrable  Securities be registered  pursuant to Section 5.01 or 5.02
hereof,  the Company will,  subject to the provisions of such Sections,  use its
reasonable  best  efforts  to  effect  the  registration  and  the  sale of such
Registrable  Securities in accordance  with the intended  method of  disposition
thereof as quickly as practicable, and in connection with any such request:

          (a) The Company  will as  expeditiously  as possible  prepare and file
with the SEC a  registration  statement on any form  selected by counsel for the
Company  and  which  form  shall be  available  for the sale of the  Registrable
Securities to be registered thereunder in accordance with the intended method of
distribution  thereof,  and use its reasonable  best efforts to cause such filed
registration  statement to become and remain  effective for a period of not less
than 180 days (or such shorter period in which all of the Registrable Securities
of the Holders included in such registration  statement shall have actually been
sold thereunder).

          (b) The Company  will, if  requested,  prior to filing a  registration
statement or prospectus or any amendment or supplement thereto,  furnish to each
Shareholder and each underwriter,  if any, of the Registrable Securities covered
by such registration statement copies of such registration statement as proposed
to be filed, and thereafter the Company will furnish to such Shareholder and


<PAGE>



underwriter,  if any, such number of copies of such registration statement, each
amendment and supplement  thereto (in each case  including all exhibits  thereto
and documents  incorporated by reference  therein),  the prospectus  included in
such  registration  statement  (including each preliminary  prospectus) and such
other  documents as such  Shareholder or underwriter  may reasonably  request in
order to facilitate the disposition of the Registrable  Securities owned by such
Shareholder.  Each Shareholder  shall have the right to request that the Company
modify any information contained in such registration  statement,  amendment and
supplement  thereto pertaining to such Shareholder and the Company shall use its
reasonable best efforts to comply with such request, provided, however, that the
Company shall not have any  obligation to so modify any  information if so doing
would cause the prospectus to contain an untrue  statement of a material fact or
omit to state any material  fact  required to be stated  therein or necessary to
make the statements therein not misleading.

          (c) After the filing of the registration  statement,  the Company will
(i) cause the related  prospectus to be supplemented by any required  prospectus
supplement,  and as so  supplemented  to be filed pursuant to Rule 424 under the
Securities  Act,  (ii) comply with the  provisions  of the  Securities  Act with
respect  to the  disposition  of all  Registrable  Securities  covered  by  such
registration  statement  during the  applicable  period in  accordance  with the
intended  methods  of  disposition  by the  sellers  thereof  set  forth in such
registration  statement or  supplement  to such  prospectus  and (iii)  promptly
notify  each  Shareholder  holding   Registrable   Securities  covered  by  such
registration  statement of any stop order issued or threatened by the SEC or any
state  securities  commission  under state blue sky laws and take all reasonable
actions  required  to  prevent  the entry of such stop  order or to remove it if
entered.

          (d) The Company will use its  reasonable  best efforts to (i) register
or qualify the Registrable  Securities  covered by such  registration  statement
under such other securities or blue sky laws of such jurisdictions in the United
States as any Shareholder  holding such  Registrable  Securities  reasonably (in
light of such  Shareholder's  intended plan of  distribution)  requests and (ii)
cause such  Registrable  Securities  to be  registered  with or approved by such
other governmental  agencies or authorities as may be necessary by virtue of the
business and  operations of the Company and do any and all other acts and things
that may be  reasonably  necessary or advisable  to enable such  Shareholder  to
consummate  the  disposition  of  the  Registrable   Securities  owned  by  such
Shareholder;  provided  that the  Company  will not be  required  to (A) qualify
generally  to do business in any  jurisdiction  where it would not  otherwise be
required to qualify but for this  paragraph  (d), (B) subject itself to taxation
in any such  jurisdiction  or (C)  consent to general  service of process in any
such jurisdiction.

          (e) The Company will immediately notify each Shareholder  holding such
Registrable Securities covered by such registration statement, at any time


<PAGE>



when a  prospectus  relating  thereto  is  required  to be  delivered  under the
Securities  Act, of the  occurrence of an event  requiring the  preparation of a
supplement or amendment to such  prospectus so that, as thereafter  delivered to
the purchasers of such Registrable Securities,  such prospectus will not contain
an  untrue  statement  of a  material  fact or omit to state any  material  fact
required to be stated  therein or necessary to make the  statements  therein not
misleading and promptly  prepare and make available to each such Shareholder and
file with the SEC any such supplement or amendment.

          (f) In connection  with (i) any Demand  Registration  requested by the
DLJ  Entities  or  their  Permitted  Transferees  or (ii)  any  registration  of
Registrable  Securities pursuant to this Article 5 the Company shall appoint the
underwriter  or  underwriters  chosen by DLJMB.  The  Company  will  enter  into
customary agreements (including an underwriting agreement in customary form) and
take such other  actions as are  reasonably  required  in order to  expedite  or
facilitate  the  disposition  of  such  Registrable  Securities,  including  the
engagement  of a "qualified  independent  underwriter"  in  connection  with the
qualification of the underwriting arrangements with the NASD.

          (g) Upon execution of confidentiality agreements in form and substance
reasonably  satisfactory  to the Company,  the Company will make  available  for
inspection  by  any  Shareholder  and  any  underwriter   participating  in  any
disposition  pursuant  to a  registration  statement  being filed by the Company
pursuant to this Section 5.04 and any attorney, accountant or other professional
retained   by  any  such   Shareholder   or   underwriter   (collectively,   the
"Inspectors"),  all financial and other records,  pertinent  corporate documents
and  properties  of the  Company  (collectively,  the  "Records")  as  shall  be
reasonably  requested  by any such  Person,  and cause the  Company's  officers,
directors and employees to supply all  information  reasonably  requested by any
Inspectors in connection with such registration statement.

          (h) The Company will furnish to each such Shareholder and to each such
underwriter, if any, a signed counterpart, addressed to such underwriter and the
participating  Shareholders,  of (i) an  opinion or  opinions  of counsel to the
Company  and (ii) a  comfort  letter  or  comfort  letters  from  the  Company's
independent public accountants, each in customary form and covering such matters
of the type customarily  covered by opinions or comfort letters, as the case may
be, as a majority of such  Shareholders  or the  managing  underwriter  therefor
reasonably requests.

          (i) The Company  will  otherwise  use its  reasonable  best efforts to
comply with all  applicable  rules and  regulations  of the SEC and the relevant
state blue sky commissions,  and make available to its securityholders,  as soon
as reasonably practicable, an earnings statement covering a period of 12 months,
beginning within three months after the effective date of the registration


<PAGE>



statement,  which  earnings  statement  shall satisfy the  provisions of Section
11(a) of the Securities Act.

          (j) The Company may require each such  Shareholder to promptly furnish
in  writing  to  the  Company  information  regarding  the  distribution  of the
Registrable  Securities as the Company may from time to time reasonably  request
and such other  information as may be legally  required in connection  with such
registration.

          (k) Each such Shareholder agrees that, upon receipt of any notice from
the  Company  of the  happening  of any event of the kind  described  in Section
5.04(e)  hereof,  such  Shareholder  will forthwith  discontinue  disposition of
Registrable  Securities  pursuant to the  registration  statement  covering such
Registrable  Securities  until such  Shareholder's  receipt of the copies of the
supplemented or amended prospectus  contemplated by Section 5.04(e) hereof, and,
if so directed by the Company,  such Shareholder will deliver to the Company all
copies,  other  than  any  permanent  file  copies  then in  such  Shareholder's
possession,  of the most recent prospectus covering such Registrable  Securities
at the time of receipt of such notice.  In the event that the Company shall give
such notice,  the Company shall extend the period during which such registration
statement  shall be maintained  effective  (including the period  referred to in
Section  5.04(a)  hereof)  by the  number of days  during  the  period  from and
including the date of the giving of notice pursuant to Section 5.04(e) hereof to
the date when the Company shall make available to such  Shareholder a prospectus
supplemented  or amended to conform  with the  requirements  of Section  5.04(e)
hereof.

          (l) The  Company  will use its  reasonable  best  efforts to list such
Registrable  Securities on any securities  exchange on which the Common Stock is
then listed or on NASDAQ if the Common  Stock is then quoted on NASDAQ not later
than the effective date of such registration statement.

         SECTION 5.05.  Indemnification  by the Company.  The Company  agrees to
indemnify and hold  harmless each  Shareholder  holding  Registrable  Securities
covered  by  a  registration  statement,  its  officers,  directors,  employees,
partners and agents,  and each Person,  if any,  who controls  such  Shareholder
within the  meaning of  Section  15 of the  Securities  Act or Section 20 of the
Exchange Act (and officers,  directors,  employees,  partners and agents of such
controlling  Persons) from and against any and all losses,  claims,  damages and
liabilities  caused by any untrue  statement  or alleged  untrue  statement of a
material fact contained in any registration  statement or prospectus relating to
the Registrable Securities (as amended or supplemented if the Company shall have
furnished any amendments or supplements thereto) or any preliminary  prospectus,
or caused by any omission or alleged  omission to state  therein a material fact
required to be stated  therein or necessary to make the  statements  therein not
misleading,  except insofar as such losses,  claims,  damages or liabilities are
caused by any such untrue


<PAGE>



statement or omission or alleged untrue  statement or omission so made in strict
conformity  with  information  furnished  in  writing  to the  Company  by  such
Shareholder or on such Shareholder's behalf expressly for use therein;  provided
that with  respect  to any  untrue  statement  or  omission  or  alleged  untrue
statement or omission made in any preliminary prospectus,  or in any prospectus,
as the case may be, the indemnity  agreement  contained in this paragraph  shall
not apply to the extent that any such loss, claim, damage,  liability or expense
results from the fact that a current copy of the prospectus  (or, in the case of
a prospectus,  the prospectus as amended or supplemented)  was not sent or given
to the Person asserting any such loss, claim, damage, liability or expense at or
prior to the  written  confirmation  of the sale of the  Registrable  Securities
concerned to such Person if it is determined  that the Company has provided such
current copy of such prospectus (or such amended or supplemented prospectus,  as
the case may be) to such  Shareholder  in a timely manner prior to such sale and
it was the  responsibility  of such  Shareholder  under  the  Securities  Act to
provide  such Person with a current copy of the  prospectus  (or such amended or
supplemented  prospectus,  as the  case  may be) and  such  current  copy of the
prospectus  (or such  amended or  supplemented  prospectus,  as the case may be)
would have cured the defect giving rise to such loss, claim,  damage,  liability
or  expense.  The Company  also  agrees to  indemnify  any  underwriters  of the
Registrable  Securities,  their  officers  and  directors  and each  person  who
controls  such  underwriters  on  substantially  the  same  basis as that of the
indemnification of the Shareholders provided in this Section 5.05.

         SECTION  5.06.  Indemnification  by  Participating  Shareholders.  Each
Shareholder  holding   Registrable   Securities  included  in  any  registration
statement agrees,  severally but not jointly, to indemnify and hold harmless the
Company,  its  officers,  directors  and agents and each Person (other than such
Shareholder)  if any,  who  controls  the  Company  within the meaning of either
Section 15 of the  Securities  Act or Section 20 of the Exchange Act to the same
extent as the foregoing indemnity from the Company to such Shareholder, but only
(i) with respect to information  furnished in writing by such  Shareholder or on
such  Shareholder's  behalf expressly for use in any  registration  statement or
prospectus  relating  to  the  Registrable  Securities,   or  any  amendment  or
supplement thereto, or any preliminary prospectus or (ii) to the extent that any
loss, claim, damage, liability or expense described in Section 5.05 results from
the fact that a current copy of the prospectus (or, in the case of a prospectus,
the prospectus as amended or  supplemented)  was not sent or given to the Person
asserting any such loss, claim, damage,  liability or expense at or prior to the
written confirmation of the sale of the Registrable Securities concerned to such
Person if it is determined that it was the responsibility of such Shareholder to
provide  such Person with a current copy of the  prospectus  (or such amended or
supplemented  prospectus,  as the  case  may be) and  such  current  copy of the
prospectus  (or such  amended or  supplemented  prospectus,  as the case may be)
would have cured the defect giving rise to such loss, claim,  damage,  liability
or  expense.  Each  such  Shareholder  shall be  prepared,  if  required  by the
underwriting agreement, to indemnify and hold


<PAGE>



harmless  underwriters  of  the  Registrable  Securities,   their  officers  and
directors and each person who controls such  underwriters on  substantially  the
same  basis  as that of the  indemnification  of the  Company  provided  in this
Section  5.06.  As a  condition  to  including  Registrable  Securities  in  any
registration  statement filed in accordance  with Article 5 hereof,  the Company
may require that it shall have received an undertaking  reasonably  satisfactory
to it from any  underwriter  to  indemnify  and hold it  harmless  to the extent
customarily provided by underwriters with respect to similar securities.

         No  Shareholder  shall be  liable  under  Section  5.06 for any  damage
thereunder  in excess of the net proceeds  realized by such  Shareholder  in the
sale of the Registrable Securities of such Shareholder.

         SECTION  5.07.  Conduct  of  Indemnification  Proceedings.  In case any
proceeding  (including  any  governmental  investigation)  shall  be  instituted
involving  any Person in respect of which  indemnity  may be sought  pursuant to
this Article 5, such Person (an  "Indemnified  Party") shall promptly notify the
Person against whom such indemnity may be sought (the  "Indemnifying  Party") in
writing and the Indemnifying  Party shall assume the defense thereof,  including
the employment of counsel reasonably satisfactory to such Indemnified Party, and
shall assume the payment of all fees and expenses;  provided that the failure of
any Indemnified Party so to notify the Indemnifying  Party shall not relieve the
Indemnifying  Party of its obligations  hereunder  except to the extent that the
Indemnifying  Party is materially  prejudiced by such failure to notify.  In any
such  proceeding,  any Indemnified  Party shall have the right to retain its own
counsel,  but the fees and expenses of such  counsel  shall be at the expense of
such  Indemnified  Party unless (i) the  Indemnifying  Party and the Indemnified
Party shall have mutually agreed to the retention of such counsel or (ii) in the
reasonable judgment of such Indemnified Party  representation of both parties by
the same counsel  would be  inappropriate  due to actual or potential  differing
interests between them. It is understood that the Indemnifying  Party shall not,
in  connection   with  any  proceeding  or  related   proceedings  in  the  same
jurisdiction,  be liable for the  reasonable  fees and expenses of more than one
separate  firm of attorneys  (in addition to any local  counsel) at any time for
all such  Indemnified  Parties,  and that all such  fees and  expenses  shall be
reimbursed as they are  incurred.  In the case of any such separate firm for the
Indemnified Parties, such firm shall be designated in writing by the Indemnified
Parties.  The  Indemnifying  Party shall not be liable for any settlement of any
proceeding  effected  without  its  written  consent,  but if settled  with such
consent,  or if there be a final  judgment for the plaintiff,  the  Indemnifying
Party shall  indemnify  and hold  harmless  such  Indemnified  Parties  from and
against  any and all  losses,  claims,  damages,  liabilities  and  expenses  or
liability (to the extent stated above) by reason of such settlement or judgment.
No  Indemnifying  Party  shall,   without  the  prior  written  consent  of  the
Indemnified Party, effect any settlement of any pending or threatened proceeding
in  respect  of which any  Indemnified  Party is or could  have been a party and
indemnity could have been sought hereunder by such


<PAGE>



Indemnified Party, unless such settlement  includes an unconditional  release of
such Indemnified Party from all liability arising out of such proceeding.

         SECTION 5.08. Contribution. If the indemnification provided for in this
Article 5 is held by a court of competent  jurisdiction to be unavailable to the
Indemnified  Parties in respect of any losses,  claims,  damages or  liabilities
referred to herein,  then each such Indemnifying  Party, in lieu of indemnifying
such Indemnified  Party,  shall contribute to the amount paid or payable by such
Indemnified Party as a result of such losses, claims, damages or liabilities (i)
as between the  Company  and the  Shareholders  holding  Registrable  Securities
covered by a registration statement and their related Indemnified Parties on the
one hand and the  underwriters  and their  related  Indemnified  Parties  on the
other,  in such  proportion as is appropriate  to reflect the relative  benefits
received  by  the  Company  and  such  Shareholders  on the  one  hand  and  the
underwriters on the other,  from the offering of the  Shareholders'  Registrable
Securities,  or if such  allocation is not permitted by applicable  law, in such
proportion as is appropriate to reflect not only the relative  benefits but also
the relative fault of the Company and such  Shareholders  on the one hand and of
such  underwriters  on the other in connection  with the statements or omissions
which resulted in such losses,  claims,  damages or liabilities,  as well as any
other  relevant  equitable  considerations  and (ii) as between  the Company and
their related  Indemnified Parties on the one hand and each such Shareholder and
their  related  Indemnified  Parties  on the  other,  in such  proportion  as is
appropriate  to  reflect  the  relative  fault of the  Company  and of each such
Shareholder  in connection  with such  statements  or omissions,  as well as any
other relevant equitable  considerations.  The relative benefits received by the
Company and such Shareholders on the one hand and such underwriters on the other
shall be deemed to be in the same  proportion  as the  total  proceeds  from the
offering (net of underwriting  discounts and  commissions  but before  deducting
expenses)  received  by the  Company  and such  Shareholders  bear to the  total
underwriting  discounts and commissions  received by such underwriters,  in each
case as set forth in the table on the cover page of the prospectus. The relative
fault  of the  Company  and  such  Shareholders  on the  one  hand  and of  such
underwriters  on the other shall be  determined  by  reference  to,  among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged  omission to state a material  fact  relates to  information
supplied by the  Company  and such  Shareholders  or by such  underwriters.  The
relative  fault of the Company on the one hand and of each such  Shareholder  on
the other shall be determined  by reference to, among other things,  whether the
untrue or alleged untrue statement of a material fact or the omission or alleged
omission to state a material fact relates to information supplied by such party,
and  the  parties'  relative  intent,  knowledge,   access  to  information  and
opportunity to correct or prevent such statement or omission.

         The  Company and the  Shareholders  agree that it would not be just and
equitable if  contribution  pursuant to this Section 5.08 were determined by pro
rata allocation or by any other method of allocation which does not take account
of the


<PAGE>



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  or  liabilities  referred  to  in  the  immediately  preceding
paragraph  shall be deemed to  include,  subject  to the  limitations  set forth
above, any legal or other expenses reasonably incurred by such Indemnified Party
in  connection  with  investigating  or  defending  any such  action  or  claim.
Notwithstanding  the  provisions  of this Section 5.08 no  underwriter  shall be
required  to  contribute  any  amount  in excess  of the  underwriting  discount
applicable to securities  purchased by such  underwriter in such offering,  less
the aggregate  amount of any damages which such  underwriter  has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged  omission,  and no  Shareholder  shall be required to contribute  any
amount in excess of the amount by which the net proceeds realized on the sale of
the Registrable Securities of such Shareholder exceeds the amount of any damages
which such  Shareholder  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 who was
not guilty of such fraudulent  misrepresentation.  Each Shareholder's obligation
to contribute  pursuant to this Section 5.08 is several in the  proportion  that
the proceeds of the  offering  received by such  Shareholder  bears to the total
proceeds of the offering received by all such Shareholders and not joint.

         SECTION  5.09.   Participation  in  Public  Offering.   No  Person  may
participate in any Underwritten Public Offering hereunder unless such Person (a)
agrees  to  sell  such  Person's   securities  on  the  basis  provided  in  any
underwriting  arrangements approved by the Persons entitled hereunder to approve
such arrangements and (b) completes and executes all  questionnaires,  powers of
attorney,  indemnities,  underwriting  agreements and other documents reasonably
required under the terms of such underwriting arrangements and the provisions of
this Agreement in respect of registration rights.

         SECTION 5.10.  Cooperation by the Company. In the event any Shareholder
shall  transfer  any  Registrable  Securities  pursuant  to Rule 144A  under the
Securities  Act,  the  Company  shall  cooperate,  to  the  extent  commercially
reasonable,  with such  Shareholder and shall provide to such  Shareholder  such
information as such Shareholder shall reasonably request.

         SECTION 5.11. No Transfer of Registration Rights. None of the rights of
Shareholders  under this Article 5 shall be assignable by any Shareholder to any
Person  acquiring  securities  of such  Shareholder  in any Public  Offering  or
pursuant to Rule 144A of the Securities Act.




<PAGE>



                                    ARTICLE 6


                        CERTAIN COVENANTS AND AGREEMENTS

         SECTION 6.01. Confidentiality.  (a) Each Shareholder hereby agrees that
Confidential  Information (as defined below) furnished and to be furnished to it
was and will be made available in connection with such Shareholder's  investment
in the  Company.  Each  Shareholder  agrees  that it will  use the  Confidential
Information  only in connection  with its  investment in the Company and not for
any other purpose. Each Shareholder further acknowledges and agrees that it will
not  disclose  any  Confidential   Information  to  any  Person;  provided  that
Confidential   Information   may  be   disclosed   (i)  to  such   Shareholder's
Representatives  (as defined  below) in the normal course of the  performance of
their  duties  or  to  any  financial   institution  providing  credit  to  such
Shareholder,  (ii) to the extent  required by applicable law, rule or regulation
(including  complying  with  any  oral or  written  questions,  interrogatories,
requests for information or documents,  subpoena,  civil investigative demand or
similar  process  to  which  a  Shareholder  is  subject;   provided  that  such
Shareholder  gives the Company prompt notice of such  request(s),  to the extent
practicable,  so that the Company may seek an  appropriate  protective  order or
similar  relief (and the  Shareholder  shall  cooperate with such efforts by the
Company,  and shall in any event make only the  minimum  disclosure  required by
such law, rule or regulation)),  (iii) to any Person to whom such Shareholder is
contemplating a transfer of its Shares (provided that such transfer would not be
in violation of the  provisions of this  Agreement and as long as such potential
transferee is advised of the confidential  nature of such information and agrees
to be bound by a confidentiality agreement in form and substance satisfactory to
the Company (it being  understood that a  confidentiality  agreement  consistent
with the provisions hereof shall be satisfactory to the Company)) or (iv) if the
prior written consent of the Board shall have been obtained.  Nothing  contained
herein shall prevent the use (subject,  to the extent possible,  to a protective
order) of  Confidential  Information in connection with the assertion or defense
of any claim by or against the Company or any Shareholder.

          (b) "Confidential  Information"  means any information  concerning the
Company  and  Persons  which are or become  its  subsidiaries  or the  financial
condition,  business,  operations  or prospects of the Company and Persons which
are  or  become  its  subsidiaries  in the  possession  of or  furnished  to any
Shareholder  (including,  without  limitation by virtue of its present or former
right  to  designate  a  director  of  the  Company);  provided  that  the  term
"Confidential  Information" does not include information which (i) is or becomes
generally  available to the public  other than as a result of a disclosure  by a
Shareholder or its partners,  directors,  officers,  employees, agents, counsel,
investment  advisers or  representatives  (all such persons  being  collectively
referred to as  "Representatives")  in violation of the Merger Agreement or this
Agreement,  (ii) is or was available to such  Shareholder  on a  nonconfidential
basis prior to its disclosure to such Shareholder or its  Representatives by the
Company  or  (iii)  was  or  becomes   available  to  such   Shareholder   on  a
non-confidential basis from a source other than the Company,


<PAGE>



provided  that such  source is or was (at the time of  receipt  of the  relevant
information)  not,  to the  best of such  Shareholder's  knowledge,  bound  by a
confidentiality  agreement  with (or other  confidentiality  obligation  to) the
Company or another Person.

         SECTION  6.02.  Reports.  The Company  will  furnish the  Institutional
Shareholders with the quarterly and annual financial reports that the Company is
required to file with the Securities and Exchange Commission pursuant to Section
13 or Section 15(d) of the Exchange Act promptly after the filing thereof or, in
the event the Company is not required to file such reports, quarterly and annual
reports  containing the same information as would be required in such reports on
the date that such reports would otherwise be filed.

         SECTION 6.03. Limitations on Subsequent Registration. The Company shall
not  enter  into any  agreement  with any  holder or  prospective  holder of any
securities of the Company (a) that would allow such holder or prospective holder
to include such securities in any registration filed pursuant to Section 5.01 or
5.02  hereof,  unless  under  the  terms  of  such  agreement,  such  holder  or
prospective  holder may include such securities in any such registration only to
the extent that the inclusion of such securities  would not reduce the amount of
the Registrable  Securities of the Shareholders included therein or (b) on terms
otherwise more favorable than this Agreement.

         SECTION  6.04.  Exclusive  Financial  Advisor  and  Investment  Banking
Advisor.  During the period  from and  including  the date  hereof  through  and
including the fifth anniversary of the date hereof, Donaldson, Lufkin & Jenrette
Securities Corporation ("DLJSC"),  or any Affiliate that DLJMB may choose in its
sole  discretion,  shall be  engaged  as the  exclusive  financial  advisor  and
investment  banker for the Company on financial and other terms customary in the
industry to be agreed between the Company and DLJSC.

         SECTION 6.05. Limitation on Purchase of Common Stock. Until the earlier
to occur of (i) the seventh  anniversary of the Closing Date or (ii) the date on
which at least 40% of the  outstanding  Common Stock on a Fully Diluted basis of
the Company is held by Persons other than the Shareholders (the "Trigger Date"),
no Institutional Shareholder shall acquire any shares of Common Stock except (i)
in a purchase  of Equity  Securities  pursuant to Section  4.03 or Section  4.04
hereof or (ii) in a  transfer  from any  other  Shareholder  which is  otherwise
permitted under the terms of Article 3 hereof.




<PAGE>



                                    ARTICLE 7


                                  MISCELLANEOUS

         SECTION 7.01.  Entire Agreement.  This Agreement,  the Merger Agreement
and the Subscription Agreement constitute the entire agreement among the parties
with respect to the subject  matter  hereof and thereof and  supersede all prior
and  contemporaneous  agreements  and  understandings,  both  oral and  written,
between the parties with respect to the subject matter hereof and thereof.

         SECTION 7.02.  Binding Effect;  Benefit.  This Agreement shall inure to
the  benefit  of and be binding  upon the  parties  hereto and their  respective
heirs, successors,  legal representatives and permitted assigns. Nothing in this
Agreement,  expressed or implied, is intended to confer on any Person other than
the   parties   hereto,   and  their   respective   heirs,   successors,   legal
representatives  and permitted  assigns,  any rights,  remedies,  obligations or
liabilities under or by reason of this Agreement.

         SECTION 7.03. Assignability.  (a) Neither this Agreement nor any right,
remedy,  obligation or liability  arising hereunder or by reason hereof shall be
assignable by the Company or any Shareholder; provided that any Person acquiring
shares of Common Stock who is required by the terms of this  Agreement to become
a party hereto shall execute and deliver to the Company an agreement to be bound
by this Agreement and shall thenceforth be a "Shareholder".

          (b) Any  Permitted  Transferee of a Management  Shareholder  who shall
become a party hereto shall be deemed a "Management Shareholder".

          (c) Any Permitted Transferee of an Institutional Shareholder who shall
become a party to this Agreement shall be deemed an "Institutional Shareholder".

         SECTION 7.04. Amendment;  Waiver; Termination. (a) No provision of this
Agreement may be waived except by an instrument in writing executed by the party
against whom the waiver is to be effective.  No provision of this  Agreement may
be amended or otherwise  modified except by an instrument in writing executed by
the Company with  approval of the Board of Directors and holders of at least 50%
of the Shares held by the parties to this Agreement at the time of such proposed
amendment or modification.

          (b) In addition,  any  amendment or  modification  of any provision of
this Agreement that would  adversely  affect any DLJ Entity may be effected only
with the consent of such DLJ Entity.



<PAGE>



          (c) In addition,  any  amendment or  modification  of any provision of
this Agreement that would adversely affect any (i) Institutional Shareholder may
be effected only with the consent of Institutional Shareholders holding at least
50% of the shares  held by the  Institutional  Shareholders  or (ii)  Management
Shareholder  may be effected  only with the consent of  Management  Shareholders
holding at least 50% of the shares held by the Management Shareholders.

          (d) This  Agreement  shall  terminate on the tenth  anniversary of the
date hereof unless earlier terminated.

         SECTION 7.05. Notices.  (a) All notices and other  communications given
or made pursuant  hereto or pursuant to any other  agreement  among the parties,
unless otherwise specified, shall be in writing and shall be deemed to have been
duly given and received when sent by fax (with confirmation in writing via first
class U.S.  mail) or  delivered  personally  or on the third  Business Day after
being sent by registered or certified U.S. mail (postage prepaid, return receipt
requested)  to the  parties at the fax number or address  set forth  below or at
such other addresses as shall be furnished by the parties by like notice:

                  if to the Company to:

                           DecisionOne Holdings Corp.
                           50 East Swedesford Road
                           Frazer, PA 19355
                           Attention: Thomas M. Molchan, Esq.
                           Fax: 610-408-3820

                  if to any  Shareholder,  to such  Shareholder  at the  address
                  specified by such  Shareholder on the signature  pages of this
                  Agreement  or in a  notice  given by such  Shareholder  to the
                  Company  for  such  purpose  with a copy,  in the  case of the
                  Institutional  Shareholders  (other than the Sprout Entities),
                  to

                           Wachtell, Lipton, Rosen & Katz
                           51 West 52nd Street
                           New York, NY 10019
                           Attention: David A. Katz, Esq.
                           Fax: 212-403-2000

         Any Person who becomes a Shareholder  shall provide its address and fax
number to the Company,  which shall  promptly  provide such  information to each
other Shareholder.

          (b)  Notices  required to be given  pursuant  to Sections  5.01(a) and
5.01(b)  and  Section  5.02 by the  Company  shall be deemed  given only if such
notices are


<PAGE>



also be given  telephonically  and by fax to the following persons (or any other
individual  the  respective  entities may designate in writing to the Company to
replace such person):

          (i)   for the benefit of the Management Shareholders, to Thomas
         M. Molchan at 610-296-6212 and fax: 610-408-3820;

         (ii)   for the benefit of the Apollo Entities, to any of Michael Gross
         at 212-261-4009, fax: 212-___-____, Joshua Harris at 212-261-4032, fax:
         212-___-____, or Marc Becker at 212-261-4061, fax: 212-___-____;

        (iii)   for the benefit of the Bain Entities, to Stephen Pagliuca at
         617-572-2629, fax: 617-___-____ or Domenic Ferrante at 617-572-2563,
         fax: 617-___-____;

         (iv)   for the benefit of the THL Entities, to any of Scott A. Schoen,
         Scott M. Sperling or Kent R. Weldon at 617-227-1050, fax: 617-___-
         ----;

          (v)   for the benefit of the Sprout Entities, to __________;

         (vi)   for the benefit of the Ontario Teachers' Pension Plan Board,
         to Dean Metcalf at 416-730-6166, fax: 416-___-____;

        (vii)   in the case of any registration not requested by the DLJ
         Entities, for the benefit of the DLJ Entities, to Peter Grauer, at
         212-892-3636, fax: 212-892-7272; and

       (viii)   to David Katz at 212-403-1000, fax: 212-403-2000.

         SECTION 7.06.  Headings.  The headings contained in this Agreement are
for convenience only and shall not affect the meaning or interpretation of this
Agreement.

         SECTION 7.07.  Counterparts.  This Agreement may be executed in any
number of counterparts, each of which shall be deemed to be an original and all
of which together shall be deemed to be one and the same instrument.

         SECTION 7.08.  Applicable Law. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of New York,  without regard
to the conflicts of laws rules of such state.

         SECTION 7.09. Specific Enforcement. Each party hereto acknowledges that
the remedies at law of the other  parties for a breach or  threatened  breach of
this Agreement  would be inadequate  and, in recognition of this fact, any party
to this  Agreement,  without  posting  any bond,  and in  addition  to all other
remedies


<PAGE>



which may be available, shall be entitled to obtain equitable relief in the form
of specific performance, a temporary restraining order, a temporary or permanent
injunction or any other equitable remedy which may then be available.

         SECTION 7.10. Consent to Jurisdiction;  Expenses.  (a) Any suit, action
or  proceeding  seeking  to  enforce  any  provision  of, or based on any matter
arising  out of or in  connection  with,  this  Agreement  or  the  transactions
contemplated  hereby shall be brought in any Federal  Court sitting in New York,
New York, or any New York State court sitting in New York, New York, and each of
the parties hereby consents to the exclusive jurisdiction of such courts (and of
the  appropriate  appellate  courts  therefrom)  in any  such  suit,  action  or
proceeding and irrevocably  waives,  to the fullest extent permitted by law, any
objection  which it may now or hereafter  have to the laying of the venue of any
such suit,  action or proceeding in any such court or that any such suit, action
or  proceeding  which is  brought  in any such  court  has  been  brought  in an
inconvenient forum. Process in any such suit, action or proceeding may be served
on any party anywhere in the world,  whether within or without the  jurisdiction
of any such  court.  Without  limiting  the  foregoing,  each party  agrees that
service of process on such party by any method provided in Section 7.05 shall be
deemed  effective  service of process on such party and consents to the personal
jurisdiction of any Federal Court sitting in New York, New York, or any New York
State court sitting in New York, New York.

          (b) In any  dispute  arising  under  this  Agreement  among any of the
parties  hereto,  the costs and expenses  (including,  without  limitation,  the
reasonable fees and expenses of counsel)  incurred by the prevailing party shall
be paid by the party that does not prevail.

         SECTION 7.11. Severability. If one or more provisions of this Agreement
are held to be  unenforceable to any extent under applicable law, such provision
shall  be  interpreted  as if it were  written  so as to be  enforceable  to the
maximum  possible  extent so as to effectuate the parties' intent to the maximum
possible  extent,  and the balance of the Agreement  shall be  interpreted as if
such provision were so excluded and shall be enforceable in accordance  with its
terms to the maximum extent permitted by law.


<PAGE>



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


                                      DECISIONONE HOLDINGS CORP.

                                      By:  /s/ Thomas J. Fitzpatrick
                                           Name: Thomas J. Fitzpatrick
                                           Title: Vice President and Chief
                                                      Financial Officer


                                      DLJ MERCHANT BANKING PARTNERS
                                      II, L.P., a Delaware Limited Partnership

                                      By: DLJ Merchant Banking II, Inc.,
                                            as managing general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272

                                      DLJ MERCHANT BANKING PARTNERS
                                      II-A, L.P., a Delaware Limited Partnership


                                      By: DLJ Merchant Banking II, Inc.,
                                            as managing general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
<PAGE>
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272

                                      DLJ OFFSHORE PARTNERS II, C.V., a
                                      Netherlands Antilles Limited Partnership

                                      By: DLJ Merchant Banking II, Inc.,
                                            as advisory general partner

                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272

                                      DLJ DIVERSIFIED PARTNERS, L.P., a
                                      Delaware Limited Partnership

                                      By: DLJ Diversified Partners II, Inc.,
                                            as managing general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272



<PAGE>
                                      DLJ DIVERSIFIED PARTNERS-A, L.P., a
                                      Delaware Limited Partnership

                                      By: DLJ Diversified Partners II, Inc.,
                                            as managing general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272

                                      DLJ MILLENNIUM PARTNERS, L.P., a
                                      Delaware Limited Partnership

                                      By: DLJ Merchant Banking II, Inc.,
                                            as managing general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272




<PAGE>
                                      DLJ MILLENNIUM PARTNERS-A, L.P.,
                                      a Delaware Limited Partnership

                                      By: DLJ Merchant Banking II, Inc.,
                                             as managing general partner


                                      By: /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272



                                      DLJMB FUNDING II, INC., a Delaware
                                       corporation


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272



<PAGE>



                                      DLJ FIRST ESC, L.L.C.,

                                      By: DLJ LBO Plans Management Corporation,
                                            as manager


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272

                                      UK INVESTMENT PLAN 1997 PARTNERS

                                      By: Donaldson, Lufkin & Jenrette, Inc.,
                                            as general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272
<PAGE>

                                      DLJ EAB PARTNERS, L.P.

                                      By: DLJ Merchant Banking Funding II, Inc.,
                                             its general partner


                                      By:   /s/ Kirk B. Wortman
                                            Name: Kirk B. Wortman
                                            Title:   Attorney-in-fact

                                      Address:

                                            c/o DLJ Merchant Banking II, Inc.
                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-7272

                                      APOLLO INVESTMENT FUND III, L.P.

                                      By Apollo Advisors II, L.P., its
                                            general partner

                                      By Apollo Capital Management II, Inc.,
                                            its general partner

                                      By:   /s/ Josh Harris
                                            Name: Josh Harris
                                            Title:   Vice President

                                      Address:

                                            1301 Avenue of the Americas
                                            38th Floor
                                            New York, NY 10019
                                            Fax: 212-261-4102

<PAGE>
                                      APOLLO OVERSEAS PARTNERS III L.P.

                                      By Apollo Advisors II, L.P., its
                                            general partner

                                      By Apollo Capital Management II, Inc.,
                                            its general partner


                                      By:   /s/ Josh Harris
                                            Name: Josh Harris
                                            Title:  Vice President

                                      Address:

                                            1301 Avenue of the Americas
                                            38th Floor
                                            New York, NY 10019
                                            Fax: 212-261-4102

                                      APOLLO U.K. PARTNERS III, L.P.

                                      By Apollo Advisors II, L.P., its
                                            general partner

                                      By Apollo Capital Management II, Inc.,
                                            its general partner


                                      By:   /s/ Josh Harris
                                            Name: Josh Harris
                                            Title:  Vice President

                                      Address:

                                            1301 Avenue of the Americas
                                            38th Floor
                                            New York, NY 10019
                                            Fax: 212-261-4102

<PAGE>
                                      BAIN CAPITAL FUND V L.P.

                                      By: Bain Capital Partners V, L.P.,
                                             its general partner

                                      By:  Bain Capital Investors V, Inc., its
                                              general partner


                                      By:   /s/ Stephen Pagliuca
                                            Name: Stephen Pagliuca
                                            Title:   General Partner

                                      Address:

                                            c/o Bain Capital, Inc.
                                            Two Copley Place
                                            Boston, MA 02116
                                            Attention: Stephen Pagliuca
                                            Fax: 617-572-3274

                                      BAIN CAPITAL FUND, V-B, L.P.

                                      By:  Bain Capital Investors V, L.P., its
                                              general partner

                                      By:  Bain Capital Investors V, Inc.,
                                              its general partner


                                      By:   /s/ Stephen Pagliuca
                                            Name: Stephen Pagliuca
                                            Title:   General Partner

                                      Address:

                                            c/o Bain Capital, Inc.
                                            Two Copley Place
                                            Boston, MA 02116
                                            Attention: Stephen Pagliuca
                                            Fax: 617-572-3274

                                      BCIP ASSOCIATES


                                      By:   /s/ Stephen Pagliuca
<PAGE>
                                            Name:  Stephen Pagliuca
                                            Title:    General Partner

                                      Address:

                                            c/o Bain Capital, Inc.
                                            Two Copley Place
                                            Boston, MA 02116
                                            Attention: Stephen Pagliuca
                                            Fax: 617-572-3274

                                      BCIP TRUST ASSOCIATES, L.P.
                                       By:  Bain Capital Investors V, L.P., its
                                              general partner


                                      By:   /s/ Stephen Pagliuca
                                            Name: Stephen Pagliuca
                                            Title:   General Partner

                                      Address:

                                            c/o Bain Capital, Inc.
                                            Two Copley Place
                                            Boston, MA 02116
                                            Attention: Stephen Pagliuca
                                            Fax: 617-572-3274
<PAGE>

                                      THOMAS H. LEE EQUITY FUND III, L.P.

                                      By:  THL Equity Advisors III
                                             Limited Partnership

                                      By:  THL Equity Trust III


                                      By:   /s/ Scott Schoen
                                            Name: Scott Schoen
                                            Title:  Managing Director

                                      Address:

                                            c/o Thomas H. Lee Company
                                            75 State Street
                                            Boston, MA 02109
                                            Fax: 617-227-3514

                                      THOMAS H. LEE FOREIGN FUND III, L.P.

                                      By:  THL Equity Advisors III
                                             Limited Partnership

                                      By: THL Equity Trust III


                                      By:   /s/ Scott Schoen
                                            Name: Scott Schoen
                                            Title:   Managing Director

                                      Address:

                                            c/o Thomas H. Lee Company
                                            75 State Street
                                            Boston, MA 02109
                                            Fax: 617-227-3514
<PAGE>

                                      THL CO-INVESTORS III-A LLC


                                       By:   /s/ Thomas H. Lee
                                             Name: Thomas H. Lee
                                             Title:   Manager

                                       Address:

                                            c/o Thomas H. Lee Company
                                            75 State Street
                                            Boston, MA 02109
                                            Fax: 617-227-3514

                                      THL CO-INVESTORS III-B LLC


                                      By:   /s/ Thomas H. Lee
                                            Name: Thomas H. Lee
                                            Title:   Manager

                                      Address:

                                            c/o Thomas H. Lee Company
                                            75 State Street
                                            Boston, MA 02109
                                            Fax: 617-227-3514

                                      DLJ CAPITAL CORP.


                                      By:   /s/ Art Zuckerman
                                            Name: Art Zuckerman
                                            Title:

                                      Address:

                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax:   212-892-3444

<PAGE>

                                      SPROUT GROWTH II, L.P.

                                      By: DLJ Capital Corporation,
                                            its managing general partner


                                      By:   /s/ Art Zuckerman
                                            Name: Art Zuckerman
                                            Title:

                                      Address:

                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-3444

                                      THE SPROUT CEO FUND, L.P.

                                      By: DLJ Capital Corporation,
                                            its managing general partner

                                      By:   /s/ Art Zuckerman
                                            Name: Art Zuckerman
                                            Title:

                                      Address:

                                            277 Park Avenue
                                            New York, NY 10172
                                            Fax: 212-892-3444


<PAGE>
                                      ONTARIO TEACHERS' PENSION PLAN BOARD


                                      By:   /s/ Dean Metcalf
                                            Name: Dean Metcalf
                                            Title:   Portfolio Manager, Merchant
                                                        Banking

                                      Address:

                                            5650 Yonge Street
                                            North York, Ontario
                                            Canada M2M 4H5
                                            Fax: 416-730-5374

<PAGE>
                                            By: /s/ Kenneth Drager
                                                  Kenneth Draeger


                                            By: /s/ Steve Felice
                                                  Steve Felice


                                            By: /s/ Tom Fitzpatrick
                                                  Tom Fitzpatrick


                                            By: /s/ Steve Friedman
                                                  Steve Friedman


                                            By: /s/ Joe Giordano
                                                  Joe Giordano


                                            By: /s/ Jim Greenwell
                                                  Jim Greenwell


                                            By: /s/ Tom Molchan
                                                  Tom Molchan


                                            By: /s/ Dwight Wilson
                                                  Dwight Wilson


                                            By: /s/ John Baldus
                                                  John Baldus


                                            By: /s/ Bill Beaumont
                                                  Bill Beaumont

<PAGE>


                                            By: /s/ Mark Davis
                                                  Mark Davis


                                            By: /s/ Tom Farrell
                                                  Tom Farrell


                                            By: /s/ Tom Fogarty
                                                  Tom Fogarty


                                            By: /s/ Tom Fogelsong
                                                  Tom Fogelsong


                                            By: /s/ Dan Harkins
                                                  Dan Harkins


                                            By: /s/ Judy Johnson
                                                  Judy Johnson


                                            By: /s/ Bill Lanam
                                                  Bill Lanam


                                            By: /s/ Mike Rogers
                                                  Mike Rogers


                                            By: /s/ Kirk Scott
                                                  Kirk Scott


                                            By: /s/ Tom Walker
                                                  Tom Walker


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