DEAN WITTER GLOBAL DIVIDEND GROWTH SECURITIES
497, 1998-03-12
Previous: DEAN WITTER GLOBAL DIVIDEND GROWTH SECURITIES, 497, 1998-03-12
Next: ALLSTATE CORP, PRE 14A, 1998-03-12



<PAGE>
                    DEAN WITTER WORLD WIDE INVESTMENT TRUST
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                                 (212) 392-2550
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                            TO BE HELD MAY 21, 1998
 
TO THE SHAREHOLDERS OF DEAN WITTER WORLD WIDE INVESTMENT TRUST:
 
    Notice  is hereby  given of  a Special Meeting  of the  Shareholders of Dean
Witter World Wide  Investment Trust  ("Dean Witter World  Wide") to  be held  in
Conference Room A, 44th Floor, Two World Trade Center, New York, New York 10048,
at  9:00 A.M., New York time, on May 21, 1998, and any adjournments thereof (the
"Meeting"), for the following purposes:
 
1.  To consider  and vote upon  an Agreement and  Plan of Reorganization,  dated
    January 29, 1998 (the "Reorganization Agreement"), between Dean Witter World
    Wide  and Dean Witter Global Dividend Growth Securities ("Dean Witter Global
    Dividend"), pursuant to which substantially all of the assets of Dean Witter
    World Wide would be combined with  those of Dean Witter Global Dividend  and
    shareholders  of Dean  Witter World Wide  would become  shareholders of Dean
    Witter Global Dividend receiving shares of Dean Witter Global Dividend  with
    a  value equal to the value of their holdings in Dean Witter World Wide (the
    "Reorganization"); and
 
2.  To act upon such other matters as may properly come before the Meeting.
 
    The Reorganization  is  more  fully  described  in  the  accompanying  Proxy
Statement  and Prospectus and a copy of the Reorganization Agreement is attached
as Exhibit  A  thereto. Shareholders  of  record at  the  close of  business  on
February 27, 1998 are entitled to notice of, and to vote at, the Meeting. Please
read  the Proxy  Statement and Prospectus  carefully before  telling us, through
your proxy or  in person, how  you wish your  shares to be  voted. The Board  of
Trustees  of  Dean  Witter  World  Wide recommends  you  vote  in  favor  of the
Reorganization. WE URGE YOU TO SIGN, DATE AND MAIL THE ENCLOSED PROXY PROMPTLY.
 
                                          By Order of the Board of Trustees,
 
                                          Barry Fink,
                                          SECRETARY
 
   
March 12, 1998
    
YOU CAN HELP AVOID THE NECESSITY AND EXPENSE OF SENDING FOLLOW-UP LETTERS TO
ENSURE A QUORUM BY PROMPTLY RETURNING THE ENCLOSED PROXY. IF YOU ARE UNABLE TO
BE PRESENT IN PERSON, PLEASE FILL IN, SIGN AND RETURN THE ENCLOSED PROXY IN
ORDER THAT THE NECESSARY QUORUM BE REPRESENTED AT THE MEETING. THE ENCLOSED
ENVELOPE REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES.
<PAGE>
                 DEAN WITTER GLOBAL DIVIDEND GROWTH SECURITIES
                TWO WORLD TRADE CENTER, NEW YORK, NEW YORK 10048
                                 (212) 392-2550
 
                          ACQUISITION OF THE ASSETS OF
                    DEAN WITTER WORLD WIDE INVESTMENT TRUST
 
                        BY AND IN EXCHANGE FOR SHARES OF
                 DEAN WITTER GLOBAL DIVIDEND GROWTH SECURITIES
 
   
    This Proxy Statement and  Prospectus is being  furnished to shareholders  of
Dean Witter World Wide Investment Trust ("Dean Witter World Wide") in connection
with  an  Agreement and  Plan  of Reorganization,  dated  January 29,  1998 (the
"Reorganization Agreement"), pursuant to which  substantially all the assets  of
Dean  Witter  World Wide  will  be combined  with  those of  Dean  Witter Global
Dividend Growth  Securities  ("Dean Witter  Global  Dividend") in  exchange  for
shares  of  Dean  Witter  Global  Dividend. As  a  result  of  this transaction,
shareholders of Dean Witter World Wide  will become shareholders of Dean  Witter
Global  Dividend and will receive  shares of Dean Witter  Global Dividend with a
value equal to the value of their holdings in Dean Witter World Wide. The  terms
and  conditions  of this  transaction  are more  fully  described in  this Proxy
Statement and Prospectus and in the Reorganization Agreement between Dean Witter
World Wide and Dean  Witter Global Dividend, attached  hereto as Exhibit A.  The
address  of Dean Witter  World Wide is  that of Dean  Witter Global Dividend set
forth above. This Proxy Statement also  constitutes a Prospectus of Dean  Witter
Global  Dividend, which  is dated  March 12, 1998,  filed by  Dean Witter Global
Dividend with the Securities and Exchange Commission (the "Commission") as  part
of its Registration Statement on Form N-14 (the "Registration Statement").
    
 
    Dean Witter Global Dividend is an open-end diversified management investment
company  whose investment objective is to  provide reasonable current income and
long-term growth of income and capital. The fund seeks to achieve its  objective
by  investing, under normal market conditions, at  least 65% of its total assets
in dividend-paying  equity  securities  issued by  issuers  located  in  various
countries throughout the world.
 
   
    This  Proxy Statement and Prospectus  sets forth concisely information about
Dean Witter Global Dividend that shareholders  of Dean Witter World Wide  should
know before voting on the Reorganization Agreement. A copy of the Prospectus for
Dean  Witter Global Dividend dated  July 28, 1997, is  attached as Exhibit B and
incorporated herein  by  reference. Also  enclosed  and incorporated  herein  by
reference  is Dean  Witter Global Dividend's  Annual Report for  the fiscal year
ended March 31, 1997 and the succeeding unaudited Semi-Annual Report for the six
months ended September 30, 1997. A Statement of Additional Information  relating
to  the Reorganization,  described in this  Proxy Statement  and Prospectus (the
"Additional  Statement"),  dated  March  12,  1998,  has  been  filed  with  the
Commission  and  is also  incorporated  herein by  reference.  Also incorporated
herein by reference  are Dean  Witter World  Wide's Prospectus,  dated July  28,
1997,  and  Annual Report  for  its fiscal  year ended  March  31, 1997  and the
succeeding unaudited Semi-Annual Report for  the six months ended September  30,
1997.  Such documents are available without  charge by calling (212) 392-2550 or
(800) 526-3143 (TOLL FREE).
    
 
INVESTORS ARE ADVISED TO READ AND RETAIN THIS PROXY STATEMENT AND PROSPECTUS FOR
FUTURE REFERENCE.
 
THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
EXCHANGE  COMMISSION OR ANY STATE SECURITIES  COMMISSION, NOR HAS THE SECURITIES
AND EXCHANGE  COMMISSION  OR  ANY  STATE SECURITIES  COMMISSION  PASSED  ON  THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
   
          THIS PROXY STATEMENT AND PROSPECTUS IS DATED MARCH 12, 1998.
    
<PAGE>
                               TABLE OF CONTENTS
                         PROXY STATEMENT AND PROSPECTUS
 
   
<TABLE>
<CAPTION>
                                                                                                                      PAGE
                                                                                                                      -----
 
<S>                                                                                                                <C>
INTRODUCTION.....................................................................................................           1
  General........................................................................................................           1
  Record Date; Share Information.................................................................................           2
  Proxies........................................................................................................           2
  Expenses of Solicitation.......................................................................................           3
  Vote Required..................................................................................................           3
SYNOPSIS.........................................................................................................           3
  The Reorganization.............................................................................................           3
  Fee Table......................................................................................................           4
  Tax Consequences of the Reorganization.........................................................................           8
  Comparison of Dean Witter World Wide and Dean Witter Global Dividend...........................................           8
PRINCIPAL RISK FACTORS...........................................................................................          11
THE REORGANIZATION...............................................................................................          12
  The Proposal...................................................................................................          12
  The Board's Consideration......................................................................................          12
  The Reorganization Agreement...................................................................................          14
  Tax Aspects of the Reorganization..............................................................................          15
  Description of Shares..........................................................................................          17
  Capitalization Table (unaudited)...............................................................................          17
  Appraisal Rights...............................................................................................          17
COMPARISON OF INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS...................................................          18
  Investment Objectives and Policies.............................................................................          18
  Investment Restrictions........................................................................................          19
ADDITIONAL INFORMATION ABOUT DEAN WITTER WORLD WIDE
  AND DEAN WITTER GLOBAL DIVIDEND................................................................................          20
  General........................................................................................................          20
  Financial Information..........................................................................................          20
  Management.....................................................................................................          20
  Description of Securities and Shareholder Inquiries............................................................          20
  Dividends, Distributions and Taxes.............................................................................          20
  Purchases, Repurchases and Redemptions.........................................................................          20
MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE......................................................................          21
FINANCIAL STATEMENTS AND EXPERTS.................................................................................          21
LEGAL MATTERS....................................................................................................          21
AVAILABLE INFORMATION............................................................................................          21
OTHER BUSINESS...................................................................................................          22
Exhibit A - Agreement and Plan of Reorganization, dated January 29, 1998, by and between
  Dean Witter World Wide and Dean Witter Global Dividend.........................................................         A-1
</TABLE>
    
 
                                       i
<PAGE>
                    DEAN WITTER WORLD WIDE INVESTMENT TRUST
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                                 (212) 392-2550
 
                            ------------------------
 
                         PROXY STATEMENT AND PROSPECTUS
 
                            ------------------------
 
                        SPECIAL MEETING OF SHAREHOLDERS
                            TO BE HELD MAY 21, 1998
 
                                  INTRODUCTION
 
GENERAL
 
   
    This  Proxy Statement and Prospectus is  being furnished to the shareholders
of Dean  Witter World  Wide  Investment Trust  ("Dean  Witter World  Wide"),  an
open-end  diversified  management  investment company,  in  connection  with the
solicitation by the Board of Trustees of Dean Witter World Wide (the "Board") of
proxies to be used at the Special  Meeting of Shareholders of Dean Witter  World
Wide  to be held in  Conference Room A, 44th Floor,  Two World Trade Center, New
York, New York  10048 at  9:00 A.M., New  York time,  on May 21,  1998, and  any
adjournments  thereof (the "Meeting").  It is expected that  the mailing of this
Proxy Statement and Prospectus will be made on or about March 12, 1998.
    
 
    At the Meeting,  Dean Witter World  Wide shareholders ("Shareholders")  will
consider  and vote upon  an Agreement and Plan  of Reorganization, dated January
29, 1998 (the "Reorganization  Agreement"), between Dean  Witter World Wide  and
Dean  Witter Global Dividend  Growth Securities ("Dean  Witter Global Dividend")
pursuant to which substantially all of the assets of Dean Witter World Wide will
be combined with those of Dean Witter Global Dividend in exchange for shares  of
Dean  Witter Global Dividend. As a result of this transaction, Shareholders will
become shareholders of Dean  Witter Global Dividend and  will receive shares  of
Dean  Witter Global Dividend equal to the value of their holdings in Dean Witter
World Wide on the date of  such transaction (the "Reorganization"). Pursuant  to
the  Reorganization, each Shareholder  will receive the class  of shares of Dean
Witter Global Dividend that  corresponds to the class  of shares of Dean  Witter
World  Wide currently held by that Shareholder.  Accordingly, as a result of the
Reorganization, each Class A, Class B, Class  C and Class D Shareholder of  Dean
Witter  World Wide will receive Class A, Class  B, Class C and Class D shares of
Dean Witter  Global Dividend,  respectively. The  shares to  be issued  by  Dean
Witter  Global Dividend pursuant to the  Reorganization (the "Dean Witter Global
Dividend Shares") will  be issued at  net asset value  without an initial  sales
charge. Further information relating to Dean Witter Global Dividend is set forth
herein  and in Dean Witter Global  Dividend's current Prospectus, dated July 28,
1997 ("Dean  Witter  Global  Dividend's Prospectus"),  attached  to  this  Proxy
Statement and Prospectus and incorporated herein by reference.
 
    The  information concerning Dean Witter World Wide contained herein has been
supplied by Dean Witter  World Wide and the  information concerning Dean  Witter
Global  Dividend  contained  herein  has been  supplied  by  Dean  Witter Global
Dividend.
 
                                       1
<PAGE>
RECORD DATE; SHARE INFORMATION
 
   
    The Board has fixed the close of business on February 27, 1998 as the record
date (the "Record Date") for the  determination of the Shareholders entitled  to
notice  of, and  to vote  at, the  Meeting. As  of the  Record Date,  there were
18,950,842.348  shares  of  Dean  Witter  World  Wide  issued  and  outstanding.
Shareholders  on the  Record Date  are entitled  to one  vote per  share on each
matter submitted to a vote at the Meeting. A majority of the outstanding  shares
entitled to vote, represented in person or by proxy, will constitute a quorum at
the Meeting.
    
 
   
    Mellon  Bank N.A., Mutual Funds, P.O. Box 320, Pittsburgh, PA 15230-3198, as
trustee of the  Dean Witter START  Plan and the  SPS Transaction Services,  Inc.
START  Plan,  employee  benefit plans  established  by DWR  and  SPS Transaction
Services, Inc. (an  affiliate of  DWR) for  their employees  as qualified  under
Section  401(k) of the Internal Revenue Code, was known to own 5% or more of the
outstanding  shares  of  Dean   Witter  World  Wide  as   of  the  Record   Date
(1,571,788.084 shares). As of the Record Date, the trustees and officers of Dean
Witter  World Wide, as a group, owned less  than 1% of the outstanding shares of
Dean Witter World Wide.
    
 
   
    To the knowledge of Dean Witter  Global Dividend's Board of Trustees, as  of
the  Record Date, no  person owned of record  or beneficially 5%  or more of the
outstanding shares of Dean  Witter Global Dividend. As  of the Record Date,  the
trustees  and officers of  Dean Witter Global  Dividend, as a  group, owned less
than 1% of the outstanding shares of Dean Witter Global Dividend.
    
 
PROXIES
 
    The enclosed form of proxy, if properly executed and returned, will be voted
in accordance with  the choice  specified thereon. The  proxy will  be voted  in
favor  of  the Reorganization  Agreement unless  a choice  is indicated  to vote
against or to  abstain from voting  on the Reorganization  Agreement. The  Board
knows of no business, other than that set forth in the Notice of Special Meeting
of  Shareholders, to be presented for consideration at the Meeting. However, the
proxy confers discretionary authority upon the persons named therein to vote  as
they  determine on  other business, not  currently contemplated,  which may come
before the Meeting. Abstentions and, if applicable, broker "non-votes" will  not
count  as votes in favor of the Reorganization Agreement, and broker "non-votes"
will not be  deemed to be  present at  the meeting for  purposes of  determining
whether  the Reorganization Agreement has  been approved. Broker "non-votes" are
shares held in street name for which the broker indicates that instructions have
not been received from the beneficial  owners or other persons entitled to  vote
and  for which  the broker  does not have  discretionary voting  authority. If a
Shareholder executes and  returns a proxy  but fails to  indicate how the  votes
should  be  cast,  the  proxy  will be  voted  in  favor  of  the Reorganization
Agreement. The proxy may be revoked at any time prior to the voting thereof  by:
(i)  delivering written  notice of  revocation to  the Secretary  of Dean Witter
World Wide at Two World Trade Center,  New York, New York 10048; (ii)  attending
the Meeting and voting in person; or (iii) signing and returning a new proxy (if
returned  and received in time to be  voted). Attendance at the Meeting will not
in and of itself revoke a proxy.
 
    In the event  that the  necessary quorum to  transact business  or the  vote
required  to approve or  reject the Reorganization Agreement  is not obtained at
the Meeting, the persons named as  proxies may propose one or more  adjournments
of  the Meeting to permit further  solicitation of proxies. Any such adjournment
will require the affirmative vote of the holders of a majority of shares of Dean
Witter World Wide  present in person  or by  proxy at the  Meeting. The  persons
named as proxies will vote in favor of such adjournment those proxies which they
are  entitled to  vote in  favor of the  Reorganization Agreement  and will vote
against any such  adjournment those  proxies required  to be  voted against  the
Reorganization Agreement.
 
                                       2
<PAGE>
EXPENSES OF SOLICITATION
 
    All  expenses of  the Reorganization,  including the  cost of  preparing and
mailing this  Proxy Statement  and  Prospectus, will  be  borne by  Dean  Witter
InterCapital  Inc. ("InterCapital" or the  "Investment Manager"), which expenses
are expected to approximate $230,000. In addition to the solicitation of proxies
by mail, proxies may  be solicited by  officers of Dean  Witter World Wide,  and
officers  and  regular  employees  of InterCapital  and  Dean  Witter  Trust FSB
("DWT"), personally  or  by mail,  telephone,  telegraph or  otherwise,  without
compensation  therefor.  Brokerage houses,  banks and  other fiduciaries  may be
requested to forward soliciting material to the beneficial owners of shares  and
to obtain authorization for the execution of proxies.
 
    DWT,  an affiliate  of InterCapital,  may call  Shareholders to  ask if they
would be willing to have their votes recorded by telephone. The telephone voting
procedure  is  designed  to  authenticate  Shareholders'  identities,  to  allow
Shareholders  to authorize the  voting of their shares  in accordance with their
instructions and to confirm that their instructions have been recorded properly.
No recommendation  will be  made as  to how  a Shareholder  should vote  on  the
Reorganization Agreement other than to refer to the recommendation of the Board.
Dean  Witter World Wide  has been advised  by counsel that  these procedures are
consistent with  the  requirements of  applicable  law. Shareholders  voting  by
telephone  will be asked  for their social security  number or other identifying
information and will be given an opportunity to authorize proxies to vote  their
shares  in accordance with their instructions.  To ensure that the Shareholders'
instructions have been recorded  correctly they will  receive a confirmation  of
their  instructions in the mail. A special toll-free number will be available in
case the  information contained  in the  confirmation is  incorrect. Although  a
Shareholder's  vote may be  taken by telephone, each  Shareholder will receive a
copy of this  Proxy Statement  and Prospectus  and may  vote by  mail using  the
enclosed  proxy card. With respect  to the solicitation of  a telephonic vote by
DWT, additional  expenses would  include $7.00  per telephone  vote  transacted,
$3.00   per  outbound  telephone   contact  and  costs   relating  to  obtaining
Shareholders' telephone numbers, all of which would be borne by InterCapital.
 
VOTE REQUIRED
 
    Approval of the  Reorganization Agreement by  the Shareholders requires  the
affirmative  vote of  a majority  (I.E., more  than 50%)  of the  shares of Dean
Witter World Wide represented in person or by proxy and entitled to vote at  the
Meeting,  provided a  quorum is  present at  the Meeting.  If the Reorganization
Agreement is not approved by Shareholders, Dean Witter World Wide will  continue
in existence and the Board will consider alternative actions.
 
                                    SYNOPSIS
 
    THE  FOLLOWING  IS  A  SYNOPSIS  OF  CERTAIN  INFORMATION  CONTAINED  IN  OR
INCORPORATED BY REFERENCE IN THIS PROXY STATEMENT AND PROSPECTUS. THIS  SYNOPSIS
IS  ONLY  A  SUMMARY AND  IS  QUALIFIED IN  ITS  ENTIRETY BY  THE  MORE DETAILED
INFORMATION CONTAINED OR INCORPORATED BY  REFERENCE IN THIS PROXY STATEMENT  AND
PROSPECTUS  AND  THE  REORGANIZATION  AGREEMENT.  SHAREHOLDERS  SHOULD CAREFULLY
REVIEW THIS PROXY STATEMENT AND  PROSPECTUS AND THE REORGANIZATION AGREEMENT  IN
THEIR  ENTIRETY AND,  IN PARTICULAR,  DEAN WITTER  GLOBAL DIVIDEND'S PROSPECTUS,
WHICH IS ATTACHED TO THIS PROXY STATEMENT AND INCORPORATED HEREIN BY REFERENCE.
 
THE REORGANIZATION
 
    The Reorganization Agreement provides for the transfer of substantially  all
the  assets of Dean  Witter World Wide,  subject to stated  liabilities, to Dean
Witter Global Dividend in exchange for  the Dean Witter Global Dividend  Shares.
The  aggregate net asset value of the  Dean Witter Global Dividend Shares issued
in the exchange will equal the aggregate value of the net assets of Dean  Witter
World Wide received by Dean Witter
 
                                       3
<PAGE>
Global  Dividend. On or after the  closing date scheduled for the Reorganization
(the "Closing Date"),  Dean Witter World  Wide will distribute  the Dean  Witter
Global  Dividend Shares received by Dean Witter World Wide to Shareholders as of
the Valuation Date (as  defined below under  "The Reorganization Agreement")  in
complete  liquidation of Dean Witter World Wide  and Dean Witter World Wide will
thereafter be dissolved  and deregistered  under the Investment  Company Act  of
1940,  as amended  (the "1940  Act"). As  a result  of the  Reorganization, each
Shareholder will receive that number of  full and fractional Dean Witter  Global
Dividend  Shares equal in value  to such Shareholder's pro  rata interest in the
net assets of Dean Witter World Wide transferred to Dean Witter Global Dividend.
Pursuant to  the Reorganization,  each  Shareholder will  receive the  class  of
shares of Dean Witter Global Dividend that corresponds to the class of shares of
Dean  Witter World  Wide currently held  by that Shareholder.  Accordingly, as a
result of  the Reorganization,  each  Class A,  Class B,  Class  C and  Class  D
Shareholder  of Dean Witter World Wide will  become holders of Class A, Class B,
Class C  and  Class D  shares  of  Dean Witter  Global  Dividend,  respectively.
Shareholders  holding their shares of Dean Witter World Wide in certificate form
will  be  asked  to  surrender   their  certificates  in  connection  with   the
Reorganization.  Shareholders who do  not surrender their  certificates prior to
the Closing Date will still receive their shares of Dean Witter Global Dividend;
however, such Shareholders will not be able to redeem, transfer or exchange  the
Dean Witter Global Dividend Shares received until the old certificates have been
surrendered.  The Board has  determined that the  interests of Shareholders will
not be diluted as a result of the Reorganization.
 
    FOR THE REASONS  SET FORTH BELOW  UNDER "THE REORGANIZATION  -- THE  BOARD'S
CONSIDERATION,"  THE  BOARD,  INCLUDING  THE TRUSTEES  WHO  ARE  NOT "INTERESTED
PERSONS" OF DEAN  WITTER WORLD WIDE  ("INDEPENDENT TRUSTEES"), AS  THAT TERM  IS
DEFINED  IN THE 1940 ACT,  HAS CONCLUDED THAT THE  REORGANIZATION IS IN THE BEST
INTERESTS OF DEAN WITTER WORLD WIDE AND ITS SHAREHOLDERS AND RECOMMENDS APPROVAL
OF THE REORGANIZATION AGREEMENT.
 
FEE TABLE
 
    Dean Witter World Wide and Dean Witter Global Dividend each pay expenses for
management of their assets, distribution of their shares and other services, and
those expenses are reflected in the net  asset value per share of each fund.  On
July  28, 1997, each of  Dean Witter World Wide  and Dean Witter Global Dividend
began offering its shares in multiple classes, each with a different combination
of  sales  charges,  ongoing  fees  and  other  features.  The  following  table
illustrates  expenses and fees  that each class  of shares of  Dean Witter World
Wide incurred during the fund's fiscal year ended March 31, 1997 adjusted,  with
respect  to Class A, Class C and Class D shares of the fund, for the shareholder
transaction expenses and 12b-1 fees  in effect for such  classes as of July  28,
1997. With respect to Dean Witter Global Dividend, the table sets forth expenses
and  fees based  on the fund's  March 31,  1997 fiscal year  end, adjusted, with
respect to Class A, Class C and Class D shares of the fund, for the  shareholder
transaction  expenses and 12b-1 fees  in effect for such  classes as of July 28,
1997. The table also sets forth pro  forma fees for the surviving combined  fund
(Dean  Witter Global Dividend) reflecting what  the fee schedule would have been
on March 31, 1997, if the Reorganization had been consummated twelve (12) months
prior to that date.
 
                                       4
<PAGE>
SHAREHOLDER TRANSACTION EXPENSES
<TABLE>
<CAPTION>
MAXIMUM SALES CHARGE IMPOSED ON PURCHASES                                DEAN WITTER    DEAN WITTER     PRO FORMA
(AS A PERCENTAGE OF OFFERING PRICE)                                      WORLD WIDE   GLOBAL DIVIDEND   COMBINED
                                                                         -----------  ---------------  -----------
<S>                                                                      <C>          <C>              <C>
Class A................................................................       5.25%(1)        5.25%(1)      5.25%(1)
Class B................................................................        none           none           none
Class C................................................................        none           none           none
Class D................................................................        none           none           none
 
<CAPTION>
 
MAXIMUM SALES CHARGE IMPOSED ON REINVESTED DIVIDENDS
<S>                                                                      <C>          <C>              <C>
Class A................................................................        none           none           none
Class B................................................................        none           none           none
Class C................................................................        none           none           none
Class D................................................................        none           none           none
<CAPTION>
 
MAXIMUM CONTINGENT DEFERRED SALES CHARGE (AS A PERCENTAGE
OF THE LESSER OF ORIGINAL PURCHASE PRICE OR REDEMPTION PROCEEDS)
<S>                                                                      <C>          <C>              <C>
Class A................................................................        none(2)         none(2)       none(2)
Class B................................................................       5.00%(3)        5.00%(3)      5.00%(3)
Class C................................................................       1.00%(4)        1.00%(4)      1.00%(4)
Class D................................................................        none           none           none
<CAPTION>
 
REDEMPTION FEES
<S>                                                                      <C>          <C>              <C>
Class A................................................................        none           none           none
Class B................................................................        none           none           none
Class C................................................................        none           none           none
Class D................................................................        none           none           none
<CAPTION>
 
EXCHANGE FEE
<S>                                                                      <C>          <C>              <C>
Class A................................................................        none           none           none
Class B................................................................        none           none           none
Class C................................................................        none           none           none
Class D................................................................        none           none           none
</TABLE>
 
ANNUAL FUND OPERATING EXPENSES AS A PERCENTAGE OF AVERAGE NET ASSETS
 
<TABLE>
<CAPTION>
                                                                         DEAN WITTER    DEAN WITTER     PRO FORMA
MANAGEMENT AND ADVISORY FEES                                             WORLD WIDE   GLOBAL DIVIDEND   COMBINED
                                                                         -----------  ---------------  -----------
<S>                                                                      <C>          <C>              <C>
Class A................................................................       1.00%          0.72%          0.71%(5)
Class B................................................................       1.00%          0.72%          0.71%(5)
Class C................................................................       1.00%          0.72%          0.71%(5)
Class D................................................................       1.00%          0.72%          0.71%(5)
 
12B-1 FEES(6)(7)
Class A................................................................       0.25%          0.25%          0.25%
Class B................................................................       1.00%(8)        0.84%(8)      0.87%(8)
Class C................................................................       1.00%          1.00%          1.00%
Class D................................................................        none           none           none
 
OTHER EXPENSES
Class A................................................................       0.36%          0.19%          0.20%
Class B................................................................       0.36%          0.19%          0.20%
Class C................................................................       0.36%          0.19%          0.20%
Class D................................................................       0.36%          0.19%          0.20%
 
TOTAL FUND OPERATING EXPENSES
Class A................................................................       1.61%          1.16%          1.16%
Class B................................................................       2.36%          1.75%          1.78%
Class C................................................................       2.36%          1.91%          1.91%
Class D................................................................       1.36%          0.91%          0.91%
 
(footnotes appear on following page)
</TABLE>
 
                                       5
<PAGE>
- ------------------------
 
(1)  Reduced  for purchases of $25,000 and over (see "Purchase of Fund Shares --
     Initial Sales  Charge  Alternative  --  Class  A  Shares"  in  each  fund's
     Prospectus).
 
(2)  Investments  that  are not  subject  to any  sales  charge at  the  time of
     purchase are  subject to  a Contingent  Deferred Sales  Charge ("CDSC")  of
     1.00%  that  will be  imposed  on redemptions  made  within one  year after
     purchase,  except  for  certain  specific  circumstances  (see  "Purchases,
     Exchanges  and Redemptions" below  and "Purchase of  Fund Shares -- Initial
     Sales Charge Alternative -- Class A Shares" in each fund's Prospectus).
 
(3)  The CDSC  is scaled  down to  1.00% during  the sixth  year, reaching  zero
     thereafter.
 
(4)  Only  applicable to  redemptions made within  one year  after purchase (see
     "Purchases, Exchanges and Redemptions" below  and "Purchase of Fund  Shares
     -- Level Load Alternative -- Class C Shares" in each fund's Prospectus).
 
(5)  This rate reflects the anticipated lower advisory fee of Dean Witter Global
     Dividend  obtained by  reaching a breakpoint  in the advisory  fee upon the
     combination of the two  funds based upon Dean  Witter World Wide's  average
     net  assets  for the  year  ended March  31,  1997 and  Dean  Witter Global
     Dividend's average net assets  for the year ended  March 31, 1997, thus,  a
     scaling down of the advisory fee to the effective advisory fee rate shown.
 
(6)  The  12b-1 fee is accrued  daily and payable monthly.  With respect to each
     fund, the entire 12b-1 fee  payable by Class A and  a portion of the  12b-1
     fee  payable by each of Class  B and Class C equal  to 0.25% of the average
     daily net assets of the class are currently characterized as a service  fee
     within  the  meaning of  National Association  of Securities  Dealers, Inc.
     ("NASD") guidelines  and  are payments  made  for personal  service  and/or
     maintenance  of shareholder  accounts. The remainder  of the  12b-1 fee, if
     any, is an asset-based sales charge, and is a distribution fee paid to Dean
     Witter Distributors  Inc.  (the "Distributor")  to  compensate it  for  the
     services  provided and the expenses borne  by the Distributor and others in
     the distribution of each fund's  shares (see "Description of Shares"  below
     and  "Purchase  of Fund  Shares  -- Plan  of  Distribution" in  each fund's
     Prospectus).
 
(7)  Upon conversion of Class B  shares to Class A  shares, such shares will  be
     subject  to the  lower 12b-1  fee applicable  to Class  A shares.  No sales
     charge is imposed at the  time of conversion of Class  B shares to Class  A
     shares. Class C shares do not have a conversion feature and, therefore, are
     subject  to an ongoing  1.00% 12b-1 fee (see  "Description of Shares" below
     and "Purchase of Fund Shares -- Alternative Purchase Arrangements" in  each
     fund's Prospectus).
 
(8)  Although  the formula for calculating the 12b-1 fees for the Class B shares
     is the same for  both Funds, the  application of the  formula (1.0% of  the
     lesser  of average daily net sales or  average daily net assets) results in
     lower annual fees  on the existing  assets of  the Class B  shares of  Dean
     Witter  Global Dividend. Upon  the consummation of  the Reorganization, the
     assets of Dean Witter World Wide are treated under the formula as new sales
     and a 1.0% rate is applied thereto. When combined with the existing  assets
     of  Dean Witter Global Dividend, the  effect initially is a slight increase
     in the annual 12b-1 fees on the Class B shares of the combined fund.
 
                                       6
<PAGE>
HYPOTHETICAL EXPENSES
 
    To attempt to show the effect of these expenses on an investment over  time,
the hypotheticals shown below have been created. Assuming that an investor makes
a  $1,000 investment  in either  Dean Witter  World Wide  or Dean  Witter Global
Dividend or the new combined fund (Dean Witter Global Dividend), that the annual
return is 5% and that the operating expenses for each fund are the ones shown in
the chart above, if the investment was redeemed at the end of each period  shown
below, the investor would incur the following expenses by the end of each period
shown:
<TABLE>
<CAPTION>
                                                                                       1 YEAR       3 YEARS      5 YEARS
                                                                                     -----------  -----------  -----------
<S>                                                                                  <C>          <C>          <C>
Dean Witter World Wide
  Class A..........................................................................   $      68    $     101    $     136
  Class B..........................................................................   $      74    $     104    $     146
  Class C..........................................................................   $      34    $      74    $     126
  Class D..........................................................................   $      14    $      43    $      74
Dean Witter Global Dividend
  Class A..........................................................................   $      64    $      87    $     113
  Class B..........................................................................   $      68    $      85    $     115
  Class C..........................................................................   $      29    $      60    $     103
  Class D..........................................................................   $       9    $      29    $      50
Pro Forma Combined
  Class A..........................................................................   $      64    $      87    $     113
  Class B..........................................................................   $      68    $      86    $     116
  Class C..........................................................................   $      29    $      60    $     103
  Class D..........................................................................   $       9    $      29    $      51
 
<CAPTION>
                                                                                      10 YEARS
                                                                                     -----------
<S>                                                                                  <C>
Dean Witter World Wide
  Class A..........................................................................   $     234
  Class B..........................................................................   $     270
  Class C..........................................................................   $     270
  Class D..........................................................................   $     163
Dean Witter Global Dividend
  Class A..........................................................................   $     186
  Class B..........................................................................   $     206
  Class C..........................................................................   $     223
  Class D..........................................................................   $     112
Pro Forma Combined
  Class A..........................................................................   $     186
  Class B..........................................................................   $     209
  Class C..........................................................................   $     223
  Class D..........................................................................   $     113
</TABLE>
 
If  such investment  was not  redeemed, the  investor would  incur the following
expenses:
<TABLE>
<CAPTION>
                                                                                       1 YEAR       3 YEARS      5 YEARS
                                                                                     -----------  -----------  -----------
<S>                                                                                  <C>          <C>          <C>
Dean Witter World Wide
  Class A..........................................................................   $      68    $     101    $     136
  Class B..........................................................................   $      24    $      74    $     126
  Class C..........................................................................   $      24    $      74    $     126
  Class D..........................................................................   $      14    $      43    $      74
Dean Witter Global Dividend
  Class A..........................................................................   $      64    $      87    $     113
  Class B..........................................................................   $      18    $      55    $      95
  Class C..........................................................................   $      19    $      60    $     103
  Class D..........................................................................   $       9    $      29    $      50
Pro Forma Combined
  Class A..........................................................................   $      64    $      87    $     113
  Class B..........................................................................   $      18    $      56    $      96
  Class C..........................................................................   $      19    $      60    $     103
  Class D..........................................................................   $       9    $      29    $      51
 
<CAPTION>
                                                                                      10 YEARS
                                                                                     -----------
<S>                                                                                  <C>
Dean Witter World Wide
  Class A..........................................................................   $     234
  Class B..........................................................................   $     270
  Class C..........................................................................   $     270
  Class D..........................................................................   $     163
Dean Witter Global Dividend
  Class A..........................................................................   $     186
  Class B..........................................................................   $     206
  Class C..........................................................................   $     223
  Class D..........................................................................   $     112
Pro Forma Combined
  Class A..........................................................................   $     186
  Class B..........................................................................   $     209
  Class C..........................................................................   $     223
  Class D..........................................................................   $     113
</TABLE>
 
    THE ABOVE  EXAMPLE SHOULD  NOT BE  CONSIDERED A  REPRESENTATION OF  PAST  OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL OPERATING EXPENSES MAY BE GREATER OR LESS
THAN  THOSE SHOWN. LONG-TERM SHAREHOLDERS OF CLASS A, CLASS B AND CLASS C SHARES
OF DEAN WITTER WORLD WIDE AND DEAN WITTER GLOBAL DIVIDEND MAY PAY MORE IN  SALES
CHARGES  INCLUDING DISTRIBUTION FEES THAN THE ECONOMIC EQUIVALENT OF THE MAXIMUM
FRONT-END SALES CHARGES PERMITTED BY THE NASD.
 
                                       7
<PAGE>
TAX CONSEQUENCES OF THE REORGANIZATION
 
    As a condition to the Reorganization, Dean Witter World Wide will receive an
opinion  of Gordon Altman Butowsky Weitzen Shalov  & Wein to the effect that the
Reorganization will constitute a tax-free reorganization for Federal income  tax
purposes,  and that no gain or loss will be recognized by Dean Witter World Wide
or the shareholders of Dean Witter World Wide for Federal income tax purposes as
a result  of  the  transactions  included in  the  Reorganization.  For  further
information   about  the  tax  consequences  of  the  Reorganization,  see  "The
Reorganization -- Tax Aspects of the Reorganization" below.
 
COMPARISON OF DEAN WITTER WORLD WIDE AND DEAN WITTER GLOBAL DIVIDEND
 
    INVESTMENT OBJECTIVES AND POLICIES.  Dean Witter World Wide and Dean  Witter
Global  Dividend each are  funds which seek  investment opportunities throughout
the world. The  investment objective of  Dean Witter  World Wide is  to seek  to
obtain total return on its assets primarily through long-term capital growth and
to  a  lesser extent  income.  The investment  objective  of Dean  Witter Global
Dividend is to provide reasonable current income and long-term growth of  income
and  capital.  Both funds  seek to  achieve  their objective  by investing  in a
diversified portfolio of securities of  companies located throughout the  world.
Dean  Witter World  Wide may  invest in  all types  of common  stocks, preferred
stocks, convertible securities and other fixed income securities of domestic and
foreign companies,  international  organizations and  governments.  Dean  Witter
World  Wide  may vary  the  allocation between  common  stocks and  fixed income
securities and there is no limitation on the percentage or amount of the  fund's
assets  which may be invested for growth  or income. Dean Witter Global Dividend
has a stated policy of investing,  under normal market conditions, at least  65%
of  its  total assets  in dividend-paying  equity  securities issued  by issuers
located in  various  countries  throughout  the  world;  the  fund's  investment
portfolio  is invested in at  least three separate countries.  Up to 35% of Dean
Witter Global Dividend's assets may be invested in convertible debt  securities,
convertible  preferred securities and fixed income securities issued by U.S. and
foreign companies  and governments.  The processes  by which  each fund  selects
common  stocks differ  and are fully  described under  "Comparison of Investment
Objectives, Policies and Restrictions" below.
 
    The investment policies of both funds are similar; the principal differences
between  them  are  more  fully   described  under  "Comparison  of   Investment
Objectives, Policies and Restrictions" below.
 
    The  investment  policies of  both Dean  Witter World  Wide and  Dean Witter
Global Dividend  are not  fundamental and  may be  changed by  their  respective
Boards of Trustees.
 
    INVESTMENT  MANAGEMENT AND DISTRIBUTION  PLAN FEES.   Dean Witter World Wide
obtains management  services  from  InterCapital,  and  sub-advisory  investment
services  from Morgan Grenfell Investment  Services Limited. ("Morgan Grenfell")
pursuant  to  a  sub-advisory  agreement  (the  "Sub-Advisory  Agreement").   As
compensation for such services, Dean Witter World Wide pays InterCapital monthly
compensation  calculated daily by applying the annual  rate of 1.0% to the first
$500 million of the fund's  average net assets and  0.95% to the fund's  average
net  assets exceeding  $500 million. As  compensation for  the services provided
pursuant to the Sub-Advisory Agreement between InterCapital and Morgan Grenfell,
InterCapital pays  Morgan Grenfell  monthly  compensation equal  to 40%  of  the
monthly  compensation  which InterCapital  receives from  the fund.  Dean Witter
Global Dividend also obtains  investment management services from  InterCapital.
As compensation for such services, Dean Witter Global Dividend pays InterCapital
monthly  compensation calculated daily  by applying the annual  rate of 0.75% to
the fund's average  daily net  assets not exceeding  $1 billion;  0.725% to  the
portion  of such daily net  assets exceeding $1 billion,  but not exceeding $1.5
billion; 0.70% to the portion of  such daily net assets exceeding $1.5  billion,
but  not exceeding $2.5 billion; 0.675% to  the portion of such daily net assets
exceeding
 
                                       8
<PAGE>
$2.5 billion, but not exceeding $3.5 billion;  and 0.65% to the portion of  such
daily  net assets exceeding  $3.5 billion. Each  class of both  funds' shares is
subject to the same management fee rates applicable to the respective fund.
 
    Both Dean Witter  World Wide and  Dean Witter Global  Dividend have  adopted
identical  distribution plans  ("Plans") pursuant to  Rule 12b-1  under the 1940
Act. In the case of Class A and  Class C shares, each fund's Plan provides  that
the  fund will reimburse the Distributor and  others for the expenses of certain
activities and services incurred by them in connection with the distribution  of
the Class A and Class C Shares of each fund. Reimbursement for these expenses is
made  in monthly payments by each fund to the Distributor which will in no event
exceed amounts equal to payments  at the annual rates of  0.25% and 1.0% of  the
average  daily net assets  of Class A  and Class C  shares, respectively. In the
case of Class B  shares, each fund's  Plan provides that the  fund will pay  the
Distributor  a fee, which is accrued daily  and paid monthly, at the annual rate
of 1.0% of  the lesser of  (a) the average  daily net sales  of each  respective
fund's  Class B shares  or (b) the average  daily net assets of  Class B of each
respective fund. The  fee is  paid for the  services provided  and the  expenses
borne  by the Distributor and others in connection with the distribution of each
fund's Class B shares. There are no 12b-1 fees applicable to both funds' Class D
shares. For further information  relating to the 12b-1  fees applicable to  each
class  of  Dean  Witter  Global  Dividend's  shares,  see  the  section entitled
"Purchase of Fund Shares" in Dean Witter Global Dividend's Prospectus,  attached
hereto.  The Distributor also  receives the proceeds  of any contingent deferred
sales charge ("CDSC") paid by the funds' shareholders at the time of redemption.
The CDSC schedules applicable to each of Dean Witter World Wide and Dean  Witter
Global   Dividend  are   set  forth   below  under   "Purchases,  Exchanges  and
Redemptions."
 
    OTHER SIGNIFICANT FEES.  Both Dean Witter World Wide and Dean Witter  Global
Dividend  pay  additional fees  in connection  with their  operations, including
legal, auditing, transfer agent, trustees fees and custodial fees. See "Synopsis
- -- Fee Table" above for the percentage of average net assets represented by such
"Other Expenses."
 
    PURCHASES, EXCHANGES AND REDEMPTIONS.  Class A shares of each fund are  sold
at  net asset  value plus an  initial sales charge  of up to  5.25%. The initial
sales charge is reduced for certain purchases. Investments of $1 million or more
(and investment  by  certain other  limited  categories of  investors)  are  not
subject  to any sales charges at the time of purchase, but are subject to a CDSC
of 1.0% on redemptions made within  one year after purchase (except for  certain
specific circumstances fully described in each fund's Prospectus).
 
    Class  B shares of each fund are offered  at net asset value with no initial
sales charge, but are subject to the same CDSC schedule set forth below (Class B
shares of each fund  purchased by certain  qualified employer sponsored  benefit
plans are subject to a reduced CDSC schedule):
 
<TABLE>
<CAPTION>
                                                          CLASS B SHARES OF DEAN WITTER WORLD WIDE
                                                                             AND
           YEAR SINCE PURCHASE PAYMENT MADE                      DEAN WITTER GLOBAL DIVIDEND
- -------------------------------------------------------  -------------------------------------------
<S>                                                      <C>
First..................................................                        5.0%
Second.................................................                        4.0%
Third..................................................                        3.0%
Fourth.................................................                        2.0%
Fifth..................................................                        2.0%
Sixth..................................................                        1.0%
Seventh and thereafter.................................                        none
</TABLE>
 
                                       9
<PAGE>
    Class  C shares  of each fund  are sold at  net asset value  with no initial
sales charge, but are subject to a  CDSC of 1.0% on redemptions made within  one
year  after purchase. The CDSC may be  waived for certain redemptions (which are
fully described in each fund's Prospectus).
 
    Class D shares  of each  fund are available  only to  limited categories  of
investors and are sold at net asset value with no initial sales charge or CDSC.
 
    The  CDSC charge is  paid to the  Distributor. Shares of  Dean Witter Global
Dividend and  Dean Witter  World Wide  are distributed  by the  Distributor  and
offered  by Dean Witter  Reynolds Inc. and  other dealers who  have entered into
selected  dealer  agreements  with  the  Distributor.  For  further  information
relating  to the CDSC schedules applicable to each of the classes of Dean Witter
Global Dividend's shares, see the section entitled "Purchase of Fund Shares"  in
Dean Witter Global Dividend's Prospectus.
 
    Shares  of  each class  of Dean  Witter  World Wide  and Dean  Witter Global
Dividend may be exchanged for shares of the same class of any other Dean  Witter
Fund that offers its shares in more than one class, without the imposition of an
exchange  fee. Additionally, shares of each class  of Dean Witter World Wide and
Dean Witter  Global  Dividend  may  be  exchanged  for  shares  of  Dean  Witter
Short-Term  U.S. Treasury Trust, Dean Witter  Limited Term Municipal Trust, Dean
Witter Short-Term Bond Fund, Dean  Witter Intermediate Term U.S. Treasury  Trust
and  the five Dean Witter Funds that  are money market funds (the foregoing nine
funds are  collectively  referred  to  as the  "Exchange  Funds"),  without  the
imposition of an exchange fee. Class A shares of Dean Witter World Wide and Dean
Witter  Global  Dividend  may  also  be  exchanged  for  shares  of  Dean Witter
Multi-State Municipal Series Trust and  Dean Witter Hawaii Municipal Trust,  and
Class  B shares of  Dean Witter World  Wide and Dean  Witter Global Dividend may
also be exchanged for shares of Dean Witter Global Short-Term Income Fund  Inc.,
all  without  the  imposition  of  an exchange  fee.  Upon  consummation  of the
Reorganization, the foregoing  exchange privileges will  still be applicable  to
shareholders of the combined fund (Dean Witter Global Dividend).
 
    With  respect to both funds, no CDSC is imposed at the time of any exchange,
although any applicable CDSC  will be imposed  upon ultimate redemption.  During
the  period of  time a  Dean Witter  Global Dividend  or Dean  Witter World Wide
shareholder remains in  an Exchange Fund,  the holding period  (for purposes  of
determining  the CDSC  rate) is  frozen. Both  Dean Witter  World Wide  and Dean
Witter  Global  Dividend   provide  telephone  exchange   privileges  to   their
shareholders.  For greater details relating to exchange privileges applicable to
Dean Witter Global Dividend, see the section entitled "Shareholder Services"  in
Dean Witter Global Dividend's Prospectus.
 
    Shareholders  of Dean Witter World Wide  and Dean Witter Global Dividend may
redeem their shares for cash at any time  at the net asset value per share  next
determined;  however, such redemption  proceeds may be reduced  by the amount of
any applicable CDSC. Both Dean Witter World Wide and Dean Witter Global Dividend
offer a reinstatement  privilege whereby  a shareholder who  has not  previously
exercised  such privilege  whose shares have  been redeemed  or repurchased may,
within thirty-five days after  the date of  redemption or repurchase,  reinstate
any  portion or  all of the  proceeds thereof in  shares of the  same class from
which such shares were redeemed or repurchased and receive a pro rata credit for
any CDSC paid  in connection  with such  redemption or  repurchase. Dean  Witter
World  Wide and  Dean Witter  Global Dividend  may redeem  involuntarily, at net
asset value, most accounts valued at less than $100.
 
    DIVIDENDS.  Each fund declares dividends separately for each of its classes.
Dean Witter  World Wide  pays dividends  at least  once per  year from  the  net
investment  income of  the fund and  Dean Witter Global  Dividend pays quarterly
dividends from the net investment income of the fund. Both funds distribute  net
short-term and
 
                                       10
<PAGE>
long-term  capital gains,  if any,  at least  annually. Each  fund, however, may
determine either to distribute  or to retain  all or part  of any net  long-term
capital gains in any year for reinvestment. With respect to each fund, dividends
and  capital  gains  distributions are  automatically  reinvested  in additional
shares of the same  class of shares of  the fund at net  asset value unless  the
shareholder elects to receive cash.
 
                             PRINCIPAL RISK FACTORS
 
    The  net asset value  of Dean Witter  Global Dividend and  Dean Witter World
Wide will  fluctuate  with changes  in  the  market value  of  their  respective
portfolio  securities. The market value of  the funds' portfolio securities will
increase or decrease due to a variety of economic, market and political factors,
including movements in interest  rates, which cannot  be predicted. Dean  Witter
Global  Dividend may invest  up to 35%  of its total  assets in investment grade
securities rated Baa or higher by Moody's Investors Service, Inc. ("Moody's") or
BBB or higher by Standard  & Poor's Corporation ("S&P"),  or, if not rated,  are
determined  to be of comparable quality  by the Investment Manager. With respect
to this 35% portion of its total assets, Dean Witter Global Dividend may  invest
in  convertible securities  that are  rated below  investment grade  (I.E. Ba or
lower by Moody's or  BB or lower by  S&P) although the fund  will not invest  in
convertible  securities rated lower than  B by either Moody's  or S&P or, if not
rated are determined  to be  of comparable  quality by  the Investment  Manager.
Fixed-income  securities rated  Baa by Moody's  or BBB by  S&P, while considered
investment grade, have  speculative characteristics greater  than those of  more
highly  rated  bonds and  fixed-income securities  rated  Ba or  BB or  lower by
Moody's and S&P, respectively, are considered to be speculative investments  and
changes in economic conditions or other circumstances are more likely to lead to
a  weakened capacity to make principal and interest payments than in the case of
securities with  higher  ratings. Dean  Witter  World  Wide does  not  have  any
limitations  with respect to the ratings  of its fixed-income securities and, as
such, all or a portion of the fund's total assets (depending upon the allocation
of the portfolio between equity and fixed-income securities) may be invested  in
lower rated securities.
 
    Both funds may invest all or a portion of their assets in foreign securities
and,  as such,  are subject  to additional risks  such as  adverse political and
economic developments  abroad, including  the possibility  of expropriations  or
confiscatory taxation, limitations on the use or transfer of fund assets and any
effects  of foreign social, economic or political instability. Foreign companies
are not subject to the regulatory  requirements of U.S. companies and, as  such,
there may be less publicly available information about such companies. Moreover,
foreign  companies are not subject to uniform accounting, auditing and financial
reporting standards  and requirements  comparable to  those applicable  to  U.S.
companies.  Additionally, securities of foreign issuers  may be less liquid than
comparable securities of U.S. issuers and,  as such, their price changes may  be
more  volatile. Furthermore, foreign exchanges  and broker-dealers are generally
subject to  less government  and  exchange scrutiny  and regulation  than  their
American  counterparts and  brokerage commissions, dealer  concessions and other
transaction costs may be higher on foreign markets than in the U.S.
 
    Both funds may  enter into foreign  currency exchange contracts  as a  hedge
against fluctuations in future foreign exchange rates, may enter into repurchase
agreements, may purchase securities on a when-issued and delayed delivery basis,
or  on a when,  as and if issued  basis, and may enter  into options and futures
transactions for hedging purposes, all of which involve certain special risks.
 
    The foregoing discussion is a summary  of the principal risk factors. For  a
more  complete discussion of the risks  of each fund, see "Investment Objectives
and Policies -- Risk Considerations and Investment Practices" in the  Prospectus
of  Dean  Witter World  Wide  and in  Dean  Witter Global  Dividend's Prospectus
attached hereto and incorporated herein by reference.
 
                                       11
<PAGE>
                               THE REORGANIZATION
 
THE PROPOSAL
 
    The Board of Trustees of Dean  Witter World Wide, including the  Independent
Trustees,  having reviewed the financial position  of Dean Witter World Wide and
the prospects for achieving  economies of scale  through the Reorganization  and
having  determined  that the  Reorganization is  in the  best interests  of Dean
Witter World Wide and  its Shareholders and that  the interests of  Shareholders
will   not  be  diluted  as  a   result  thereof,  recommends  approval  of  the
Reorganization by Shareholders of Dean Witter World Wide.
 
THE BOARD'S CONSIDERATION
 
    At a meeting  held on  January 29,  1998, the  Board, including  all of  the
Independent  Trustees,  unanimously  approved the  Reorganization  Agreement and
determined to recommend that Shareholders approve the Reorganization  Agreement.
In  reaching this decision, the Board made an extensive inquiry into a number of
factors,  particularly  the  comparative  expenses  currently  incurred  in  the
operations  of Dean Witter World Wide and Dean Witter Global Dividend. The Board
also considered other factors,  including, but not  limited to: the  comparative
investment  performance and past growth in assets  of Dean Witter World Wide and
Dean Witter Global  Dividend; the  compatibility of  the investment  objectives,
policies,  restrictions and portfolios of Dean Witter World Wide and Dean Witter
Global Dividend;  the terms  and conditions  of the  Reorganization which  would
affect  the price  of shares  to be issued  in the  Reorganization; the tax-free
nature of the Reorganization; and any direct or indirect costs to be incurred by
Dean Witter World Wide  and Dean Witter Global  Dividend in connection with  the
Reorganization.
 
    In recommending the Reorganization to Shareholders, the Board of Dean Witter
World  Wide considered that the Reorganization would have the following benefits
to Shareholders:
 
    1.  Once the  Reorganization is  consummated, the  expenses which  would  be
       borne  by shareholders  of each  class of  the "combined  fund" should be
lower on  a  percentage  basis  than  the actual  expenses  per  share  of  each
corresponding  class of  Dean Witter  World Wide. In  part, this  is because the
current rate of  the investment  management fee  payable by  the surviving  Dean
Witter  Global Dividend fund (0.71% of average  daily net assets) would be lower
than the rate  of the investment  management fee currently  paid by Dean  Witter
World  Wide (1.0% of average daily net  assets). Furthermore, to the extent that
the Reorganization  would  result in  Shareholders  becoming shareholders  of  a
combined larger fund, further economies of scale could be achieved since various
fixed  expenses (E.G., auditing and legal) can be spread over a larger number of
shares. The Board noted  that the expense  ratio for each  class of Dean  Witter
World  Wide  was higher  (for its  fiscal year  ended March  31, 1997)  than the
expense ratio for each class of Dean Witter Global Dividend (for the fiscal year
ended March 31, 1997).
 
    2.  Shareholders would  have a  continued participation  in a  portfolio  of
       primarily  equity securities  of issuers worldwide  through investment in
Dean Witter Global Dividend, which has similar investment objectives, investment
policies and restrictions to those of Dean Witter World Wide.
 
    3.  Shareholders of Class  B shares  of Dean  Witter World  Wide would  have
       lower annual asset-based distribution costs, currently 1.0% of net assets
compared  to 0.87% on a  combined basis. The Board  recognized that this benefit
could change  depending  on  how  well the  investments  of  the  combined  Fund
performs.
 
    4.  Neither Dean Witter World Wide nor Dean Witter Global Dividend will bear
       any  expenses of consummating the Reorganization. InterCapital has agreed
to bear all such expenses, including the costs of
 
                                       12
<PAGE>
printing and distributing this proxy statement, other costs of holding a meeting
of shareholders,  and  fees and  expenses  of outside  counsel  and  independent
auditors.
 
    The  Board of Dean  Witter World Wide  recognized that the  Fund would incur
some transaction  costs  and realize  capital  losses  on the  sale  of  certain
portfolio  securities in order  to make the portfolio  acceptable to Dean Witter
Global Dividend. However,  InterCapital, the investment  manager of both  Funds,
informed  the Boards  that the  unrealized capital  losses on  the securities in
question  may  have  to  be  realized,  in  any  event,  with  or  without   the
Reorganization, and that proceeds of the sale of such securities could be put to
use  in investments that the Investment Manager considers to be more attractive.
With respect to transaction costs for the portfolio changes of Dean Witter World
Wide, the Board of Dean Witter World Wide believes such costs would be more than
offset by the  economic benefits  that would  accrue to  Shareholders, as  noted
above.
 
    5.  The Board also considered that the assets of Dean Witter Global Dividend
       grew from approximately $1.85 billion at its fiscal year end on March 31,
1995  to $3.5 billion  on December 31,  1997. By comparison,  the assets of Dean
Witter World  Wide declined  during  that same  period from  approximately  $512
million to $327 million.
 
    6.  The Reorganization will constitute a tax-free reorganization for Federal
       income  tax purposes,  and no  gain or  loss will  be recognized  by Dean
Witter World  Wide or  its Shareholders  for Federal  income tax  purposes as  a
result of transactions included in the Reorganization.
 
    7.  The  Board also took into  consideration that absent the Reorganization,
       Dean Witter Global Dividend will  continue to compete for investor  funds
directly  with Dean Witter World Wide.  The Reorganization should allow for more
concentrated selling efforts to the benefit  of both Dean Witter World Wide  and
Dean Witter Global Dividend shareholders and avoid the inefficiencies associated
with  the operation and distribution of two similar funds through the same sales
organization.
 
    The Board of Trustees of Dean  Witter Global Dividend, including a  majority
of the Independent Trustees of Dean Witter Global Dividend, also have determined
that  the Reorganization is in the best interests of Dean Witter Global Dividend
and its shareholders  and that the  interests of existing  shareholders of  Dean
Witter  Global Dividend will not be diluted as a result thereof. The transaction
will enable Dean Witter Global  Dividend to acquire investment securities  which
are  consistent with Dean Witter Global Dividend's investment objective, without
the brokerage costs attendant to the  purchase of such securities in the  market
and  without any cost to effect the Reorganization itself. Also, the addition of
assets to Dean  Witter Global  Dividend's portfolio may  result in  some of  the
economies  of  scale  described  above, including  a  further  reduction  in the
investment management fee  resulting from  the addition  of more  assets at  the
lowest  breakpoint rate in the fee  schedule. Furthermore, like the shareholders
of Dean Witter World Wide, the  shareholders of Dean Witter Global Dividend  may
also  realize an intangible benefit in having the Dean Witter sales organization
concentrate its selling efforts on one rather than two similar funds, which  may
result in further economies of scale. Finally, the Board considered that even if
the  benefits  enumerated above  are not  realized,  the costs  to the  Fund are
sufficiently minor to warrant taking the opportunity to realize those  benefits.
With  respect to  the Class  B shares, the  Board recognized  that, although the
formula for calculating 12b-1 fees is  the same for both Funds, the  application
of the formula results in lower annual fees for Dean Witter Global Dividend than
for  Dean Witter  World Wide and  that combining  the two Funds  would, at least
initially, result in somewhat higher 12b-1 fees for the combined Fund, as  noted
above  under "Synopsis  -- Fee  Table." The  Board believes,  however, that this
relatively minor  disadvantage would  be offset  by the  other benefits  of  the
Reorganization.
 
                                       13
<PAGE>
THE REORGANIZATION AGREEMENT
 
    The   terms  and  conditions   under  which  the   Reorganization  would  be
consummated, as summarized below, are set forth in the Reorganization Agreement.
This summary is  qualified in its  entirety by reference  to the  Reorganization
Agreement,  a copy of which is attached as Exhibit A to this Proxy Statement and
Prospectus.
 
    The Reorganization Agreement provides that  (i) Dean Witter World Wide  will
transfer  all of  its assets, including  portfolio securities,  cash (other than
cash amounts retained  by Dean  Witter World  Wide as  a "Cash  Reserve" in  the
amount  sufficient  to discharge  its liabilities  not  discharged prior  to the
Valuation Date (as  defined below) and  for expenses of  the dissolution),  cash
equivalents  and receivables to Dean Witter  Global Dividend on the Closing Date
in exchange  for  the  assumption  by Dean  Witter  Global  Dividend  of  stated
liabilities  of Dean Witter  World Wide, including  all expenses, costs, charges
and reserves, as reflected on an  unaudited statement of assets and  liabilities
of Dean Witter World Wide prepared by the Treasurer of Dean Witter World Wide as
of  the Valuation Date (as defined  below) in accordance with generally accepted
accounting principles consistently  applied from the  prior audited period,  and
the delivery of Dean Witter Global Dividend Shares; (ii) such Dean Witter Global
Dividend  Shares would be distributed to Shareholders  on the Closing Date or as
soon as practicable thereafter; (iii) Dean Witter World Wide would be dissolved;
and (iv) the outstanding shares of Dean Witter World Wide would be canceled.
 
    The number of  Dean Witter Global  Dividend Shares to  be delivered to  Dean
Witter  World Wide will be determined by  dividing the aggregate net asset value
of each class of shares of Dean Witter World Wide acquired by Dean Witter Global
Dividend by the net asset value per  share of the corresponding class of  shares
of  Dean Witter Global Dividend; these values will be calculated as of the close
of business of the New York Stock  Exchange on the third business day  following
the  receipt of  the requisite  approval by  Shareholders of  the Reorganization
Agreement or at such other time as Dean Witter World Wide and Dean Witter Global
Dividend may agree (the  "Valuation Date"). As an  illustration, assume that  on
the  Valuation Date, Class B  shares of Dean Witter  World Wide had an aggregate
net asset value (not including  any Cash Reserve of  Dean Witter World Wide)  of
$100,000.  If  the net  asset  value per  Class B  share  of Dean  Witter Global
Dividend were $10 per share at the close of business on the Valuation Date,  the
number of Class B shares to be issued would be 10,000 ($100,000 DIVIDED BY $10).
These  10,000 Class B shares of Dean Witter Global Dividend would be distributed
to the former Class B  shareholders of Dean Witter  World Wide. This example  is
given  for illustration purposes only and does  not bear any relationship to the
dollar amounts or shares expected to be involved in the Reorganization.
 
    On the Closing Date or as soon as practicable thereafter, Dean Witter  World
Wide  will distribute pro rata to its Shareholders  of record as of the close of
business on  the Valuation  Date,  the Dean  Witter  Global Dividend  Shares  it
receives.  Each  Shareholder will  receive the  class of  shares of  Dean Witter
Global Dividend that  corresponds to the  class of shares  of Dean Witter  World
Wide  currently held  by that Shareholder.  Accordingly, the  Dean Witter Global
Dividend Shares will be distributed  as follows: each of  the Class A, Class  B,
Class C and Class D shares of Dean Witter Global Dividend will be distributed to
holders  of Class A,  Class B, Class C  and Class D shares  of Dean Witter World
Wide, respectively. Dean Witter Global Dividend will cause its transfer agent to
credit and confirm an appropriate number  of Dean Witter Global Dividend  Shares
to each Shareholder. Certificates for Dean Witter Global Dividend Shares will be
issued  only upon written  request of a  Shareholder and only  for whole shares,
with fractional shares credited to the name  of the Shareholder on the books  of
Dean  Witter  Global Dividend.  Shareholders  who wish  to  receive certificates
representing their Dean  Witter Global  Dividend Shares must,  after receipt  of
their  confirmations, make  a written request  to Dean  Witter Global Dividend's
transfer agent, Dean Witter Trust FSB, Harborside Financial Center, Jersey City,
New
 
                                       14
<PAGE>
Jersey 07311. Shareholders  of Dean Witter  World Wide holding  their shares  in
certificate form will be asked to surrender such certificates in connection with
the  Reorganization. Shareholders who do  not surrender their certificates prior
to the  Closing Date  will still  receive  their shares  of Dean  Witter  Global
Dividend;  however, such  Shareholders will not  be able to  redeem, transfer or
exchange  the  Dean  Witter  Global  Dividend  Shares  received  until  the  old
certificates have been surrendered.
 
    The Closing Date will be the next business day following the Valuation Date.
The  consummation of the  Reorganization is contingent upon  the approval of the
Reorganization by the  Shareholders and the  receipt of the  other opinions  and
certificates  set forth in Sections  6, 7 and 8  of the Reorganization Agreement
and the occurrence of the events  described in those Sections, certain of  which
may  be waived  by Dean Witter  World Wide  or Dean Witter  Global Dividend. The
Reorganization Agreement may be amended in any mutually agreeable manner, except
that  no  amendment  may  be  made   subsequent  to  the  Meeting  which   would
detrimentally  affect the value of the shares  of Dean Witter Global Dividend to
be distributed.  All  expenses of  the  Reorganization, including  the  cost  of
preparing  and mailing  this Proxy  Statement and  Prospectus, will  be borne by
InterCapital, which expenses are not expected to exceed $230,000.
 
   
    The Reorganization  Agreement  may  be  terminated  and  the  Reorganization
abandoned  at any time,  before or after  approval by Shareholders  or by mutual
consent of Dean Witter World Wide and Dean Witter Global Dividend. In  addition,
either party may terminate the Reorganization Agreement upon the occurrence of a
material  breach of the  Reorganization Agreement by  the other party  or if, by
August 31, 1998, any condition set forth in the Reorganization Agreement has not
been fulfilled or waived by the party entitled to its benefits.
    
 
    Under the Reorganization Agreement, within one year after the Closing  Date,
Dean  Witter  World Wide  shall: either  pay or  make provision  for all  of its
liabilities and  distribute any  remaining  amount of  the Cash  Reserve  (after
paying or making provision for such liabilities and the estimated cost of making
the distribution) to former shareholders of Dean Witter World Wide that received
Dean  Witter Global Dividend  Shares. Dean Witter World  Wide shall be dissolved
and deregistered as an investment  company promptly following the  distributions
of  shares of  Dean Witter  Global Dividend  to Shareholders  of record  of Dean
Witter World Wide.
 
    The effect of the Reorganization is that Shareholders who vote their  shares
in  favor of the Reorganization  Agreement are electing to  sell their shares of
Dean Witter World  Wide (at  net asset value  on the  Valuation Date  calculated
after  subtracting any  Cash Reserve) and  reinvest the proceeds  in Dean Witter
Global Dividend Shares  at net asset  value and without  recognition of  taxable
gain  or  loss  for  Federal  income  tax  purposes.  See  "Tax  Aspects  of the
Reorganization" below. As noted in "Tax Aspects of the Reorganization" below, if
Dean Witter World Wide recognizes net gain from the sale of securities prior  to
the  Closing  Date,  such  gain,  to  the  extent  not  offset  by  capital loss
carryforwards, will be distributed to Shareholders prior to the Closing Date and
will be taxable to Shareholders as capital gain.
 
    Shareholders will continue to be able to redeem their shares of Dean  Witter
World  Wide at net asset  value next determined after  receipt of the redemption
request (subject to  any applicable  CDSC) until the  close of  business on  the
business  day next preceding  the Closing Date.  Redemption requests received by
Dean Witter World Wide thereafter will be treated as requests for redemption  of
shares of Dean Witter Global Dividend.
 
TAX ASPECTS OF THE REORGANIZATION
 
    At least one but not more than 20 business days prior to the Valuation Date,
Dean  Witter World  Wide will  declare and  pay a  dividend or  dividends which,
together with all previous such dividends, will have the effect of  distributing
to  Shareholders  all of  Dean Witter  World  Wide's investment  company taxable
income for all periods since the inception of Dean Witter World Wide through and
including the Valuation Date (computed without
 
                                       15
<PAGE>
regard to any dividends paid deduction), and all of Dean Witter World Wide's net
capital gain, if any, realized in such periods (after reduction for any  capital
loss carryforward).
 
   
    The Reorganization is intended to qualify for Federal income tax purposes as
a  tax-free reorganization  under Section  368(a)(1)(C) of  the Internal Revenue
Code of 1986, as amended  (the "Code"). Dean Witter  World Wide and Dean  Witter
Global Dividend have represented that, to their best knowledge, there is no plan
or intention by Shareholders to redeem, sell, exchange or otherwise dispose of a
number  of Dean Witter  Global Dividend Shares received  in the transaction that
would reduce Shareholders' ownership of Dean Witter Global Dividend Shares to  a
number of shares having a value, as of the Closing Date, of less than 50% of the
value of all of the formerly outstanding Dean Witter World Wide shares as of the
same  date. Dean  Witter World  Wide and Dean  Witter Global  Dividend have each
further represented that,  as of the  Closing Date, Dean  Witter World Wide  and
Dean Witter Global Dividend will qualify as regulated investment companies.
    
 
    As a condition to the Reorganization, Dean Witter World Wide and Dean Witter
Global Dividend will receive an opinion of Gordon Altman Butowsky Weitzen Shalov
&   Wein  that,  based   on  certain  assumptions,  facts,   the  terms  of  the
Reorganization  Agreement  and  additional  representations  set  forth  in  the
Reorganization  Agreement or provided by Dean  Witter World Wide and Dean Witter
Global Dividend:
 
   
    1.  The transfer of substantially all of Dean Witter World Wide's assets  in
       exchange for the Dean Witter Global Dividend Shares and the assumption by
Dean  Witter Global Dividend of certain  stated liabilities of Dean Witter World
Wide followed by the distribution by Dean  Witter World Wide of the Dean  Witter
Global  Dividend Shares to Shareholders in  exchange for their Dean Witter World
Wide shares will  constitute a  "reorganization" within the  meaning of  Section
368(a)(1)(C)  of the  Code, and  Dean Witter World  Wide and  Dean Witter Global
Dividend will  each be  a "party  to  a reorganization"  within the  meaning  of
Section 368 (b) of the Code;
    
 
    2.  No  gain or loss will be recognized  by Dean Witter Global Dividend upon
       the receipt of the  assets of Dean Witter  World Wide solely in  exchange
for  the Dean Witter  Global Dividend Shares  and the assumption  by Dean Witter
Global Dividend of the stated liabilities of Dean Witter World Wide;
 
    3.  No gain or loss will  be recognized by Dean  Witter World Wide upon  the
       transfer  of the assets of  Dean Witter World Wide  to Dean Witter Global
Dividend in  exchange  for  the  Dean Witter  Global  Dividend  Shares  and  the
assumption  by Dean Witter Global Dividend of the stated liabilities or upon the
distribution of Dean Witter Global  Dividend Shares to Shareholders in  exchange
for their Dean Witter World Wide shares;
 
    4.  No  gain or loss will be recognized by Shareholders upon the exchange of
       the shares of Dean Witter World Wide for the Dean Witter Global  Dividend
Shares;
 
    5.  The  aggregate  tax basis  for the  Dean  Witter Global  Dividend Shares
       received by each of the Shareholders pursuant to the Reorganization  will
be  the same as the aggregate tax basis  of the shares in Dean Witter World Wide
held by each such Shareholder immediately prior to the Reorganization;
 
    6.  The holding  period of  the Dean  Witter Global  Dividend Shares  to  be
       received  by each  Shareholder will include  the period  during which the
shares in Dean  Witter World  Wide surrendered  in exchange  therefor were  held
(provided  such shares in Dean Witter World  Wide were held as capital assets on
the date of the Reorganization);
 
    7.  The tax basis of the assets of  Dean Witter World Wide acquired by  Dean
       Witter  Global Dividend will be the same  as the tax basis of such assets
to Dean Witter World Wide immediately prior to the Reorganization; and
 
                                       16
<PAGE>
    8.  The holding period of the assets of Dean Witter World Wide in the  hands
       of Dean Witter Global Dividend will include the period during which those
assets were held by Dean Witter World Wide.
 
    SHAREHOLDERS SHOULD CONSULT THEIR TAX ADVISORS REGARDING THE EFFECT, IF ANY,
OF  THE PROPOSED TRANSACTION IN LIGHT OF THEIR INDIVIDUAL CIRCUMSTANCES. BECAUSE
THE FOREGOING DISCUSSION ONLY RELATES TO THE FEDERAL INCOME TAX CONSEQUENCES  OF
THE PROPOSED TRANSACTION, SHAREHOLDERS SHOULD ALSO CONSULT THEIR TAX ADVISORS AS
TO STATE AND LOCAL TAX CONSEQUENCES, IF ANY, OF THE PROPOSED TRANSACTION.
 
DESCRIPTION OF SHARES
 
    Dean   Witter  Global  Dividend   shares  to  be   issued  pursuant  to  the
Reorganization Agreement will, when issued, be fully paid and non-assessable  by
Dean  Witter Global Dividend and transferable without restrictions and will have
no preemptive rights. Class B shares of Dean Witter Global Dividend, like  Class
B  shares of Dean Witter World Wide, have a conversion feature pursuant to which
approximately ten (10)  years after the  date of the  original purchase of  such
shares,  the shares will convert  automatically to Class A  shares, based on the
relative net asset values of the two classes. For greater details regarding  the
conversion  feature,  including  the  method  by which  the  10  year  period is
calculated and  the treatment  of reinvested  dividends, see  "Purchase of  Fund
Shares" in each fund's Prospectus.
 
CAPITALIZATION TABLE (UNAUDITED)
 
    The  following table  sets forth  the capitalization  of Dean  Witter Global
Dividend and Dean Witter World Wide as of  December 31, 1997 and on a pro  forma
combined basis as if the Reorganization had occurred on that date:
<TABLE>
<CAPTION>
                                                                                 NET ASSET
                                                                      SHARES       VALUE
                     CLASS A                          NET ASSETS    OUTSTANDING  PER SHARE
- --------------------------------------------------  --------------  -----------  ---------
<S>                                                 <C>             <C>          <C>
Dean Witter World Wide............................  $      388,953       24,081   $16.15
Dean Witter Global Dividend.......................  $    8,377,715      642,793   $13.03
Combined Fund (pro forma).........................  $    8,766,668      672,644   $13.03
 
<CAPTION>
 
                     CLASS B
- --------------------------------------------------
<S>                                                 <C>             <C>          <C>
Dean Witter World Wide............................  $  299,820,595   18,629,400   $16.09
Dean Witter Global Dividend.......................  $3,554,812,091  272,562,930   $13.04
Combined Fund (pro forma).........................  $3,854,632,686  295,555,307   $13.04
<CAPTION>
 
                     CLASS C
- --------------------------------------------------
<S>                                                 <C>             <C>          <C>
Dean Witter World Wide............................  $       55,904        3,472   $16.10
Dean Witter Global Dividend.......................  $    6,946,214      533,294   $13.03
Combined Fund (pro forma).........................  $    7,002,118      537,584   $13.03
<CAPTION>
 
                     CLASS D
- --------------------------------------------------
<S>                                                 <C>             <C>          <C>
Dean Witter World Wide............................  $   27,160,112    1,679,087   $16.18
Dean Witter Global Dividend.......................  $   14,344,323    1,100,112   $13.04
Combined Fund (pro forma).........................  $   41,504,435    3,182,943   $13.04
</TABLE>
 
APPRAISAL RIGHTS
 
    Shareholders   will  have  no  appraisal   rights  in  connection  with  the
Reorganization.
 
                                       17
<PAGE>
         COMPARISON OF INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS
 
INVESTMENT OBJECTIVES AND POLICIES
 
    Dean Witter World Wide and Dean Witter Global Dividend each are funds  which
invest  in securities of companies located  throughout the world. The investment
objective of Dean  Witter World Wide  is to  obtain total return  on its  assets
primarily  through long-term capital  growth and to a  lesser extent income. The
investment objective of  Dean Witter  Global Dividend is  to provide  reasonable
current  income and  long-term growth of  income and capital.  Dean Witter World
Wide seeks to  achieve its  objective by investing  in a  combination of  common
stocks,  preferred  stocks, convertible  debt securities,  bonds and  other debt
obligations of domestic and foreign companies and governments and  international
organizations  worldwide.  Dean  Witter  Global Dividend  seeks  to  achieve its
objective by investing  at least  65% of  its assets  in dividend-paying  equity
securities issued by issuers located in various countries throughout the world.
 
    Dean Witter Global Dividend may invest up to 35% of its total assets in: (a)
convertible  debt securities, convertible  preferred securities, U.S. Government
securities (securities issued or guaranteed as to principal and interest by  the
United  States or  its agencies and  instrumentalities), fixed-income securities
issued by foreign governments and international organizations, investment  grade
(Baa  or higher by  Moody's or BBB  or higher by  S&P) corporate debt securities
and/or money market instruments when, in the opinion of the Investment  Manager,
the  projected total return on  such securities is equal  to or greater than the
expected total  return on  equity  securities or  when  such holdings  might  be
expected  to  reduce  the volatility  of  the  portfolio (for  purposes  of this
provision, the term "total  return" means the difference  between the cost of  a
security  and the aggregate of its market  value and dividends received); or (b)
in  money  market  instruments   under  any  one  or   more  of  the   following
circumstances:  (i) pending investment of proceeds  of sale of the fund's shares
or of portfolio securities;  (ii) pending settlement  of purchases of  portfolio
securities;   or  (iii)  to  maintain  liquidity  for  the  purpose  of  meeting
anticipated redemptions. There  are no  minimum rating  or quality  requirements
with  respect to convertible securities in which  the fund may invest and, thus,
all or some of such securities may be below investment grade. The fund will not,
however, invest in any convertible security  rated below B by either Moody's  or
S&P  or, if unrated, is determined to be of comparable quality by the Investment
Manager.
 
    Dean Witter World Wide may invest 100%  of its assets in any combination  of
equity  and fixed-income securities. There is no limitation on the percentage or
amount of  the  fund's  assets which  may  be  invested for  growth  or  income.
Additionally,  Dean Witter World Wide does not have any limitations with respect
to the ratings of its fixed-income and convertible securities.
 
    Both funds may invest all of  their assets in foreign securities,  including
securities  of  foreign  issuers in  the  form of  American  Depository Receipts
("ADRs") or European Depository Receipts ("EDRs") although the portfolio of Dean
Witter Global Dividend will  be invested in at  least three separate  countries.
Both  funds  may  enter  into forward  foreign  currency  exchange  contracts in
connection  with  their  foreign  securities  investments  as  a  hedge  against
fluctuations in future foreign exchange rates.
 
    Both Dean Witter World Wide and Dean Witter Global Dividend may purchase and
sell  (write) options on portfolio securities denominated in either U.S. dollars
or foreign currencies and on the U.S. dollar or foreign currencies which are  or
may  be in  the future listed  on U.S.  and foreign securities  exchanges or are
written in over-the-counter transactions ("OTC options"), and may write  covered
call  options on such  securities without limit,  in order to  hedge against the
decline in  the value  of  a security  or currency  in  which such  security  is
denominated,  to earn  additional income  and or to  close out  long call option
positions. Both funds also may purchase listed  and OTC call and put options  in
amounts   equaling   up  to   5%  of   their   respective  total   assets.  Both
 
                                       18
<PAGE>
funds may purchase call and put options to close out covered call or written put
positions, as applicable, or to protect the value of the relevant security. Both
funds may purchase and sell futures contracts that are currently traded, or  may
in  the future be traded, on U.S.  and foreign commodity exchanges on underlying
portfolio securities, on any currency ("currency" futures), on U.S. and  foreign
fixed-income securities ("interest rate" futures) and on such indexes of U.S. or
foreign  equity  or fixed-income  securities  as may  exist  or come  into being
("index" futures).
 
    Both Dean Witter Global Dividend and Dean Witter World Wide may (i) purchase
securities on a  when-issued or delayed  delivery basis, (ii)  purchase or  sell
securities  on a forward commitment basis, (iii) purchase securities on a "when,
as and if issued" basis, (iv) invest up to 10% of their respective total  assets
in shares of other investment companies or real estate investment trusts and (v)
invest  in  zero  coupon  securities.  Both  funds  may  enter  into  repurchase
agreements subject to certain procedures  designed to minimize risks  associated
with  such agreements. Dean Witter World Wide may  invest up to 10% of its total
assets in securities which  are subject to restrictions  on resale because  they
have  not been registered under the Securities Act of 1933, as amended, or which
are otherwise not readily marketable, whereas, Dean Witter Global Dividend has a
5% limit respecting investments  in such securities; both  funds do not  include
Rule 144A securities under these restrictions.
 
    Both  Dean Witter Global Dividend and Dean Witter World Wide may invest part
or all  of their  respective  assets in  money  market instruments  to  maintain
temporarily  a "defensive" posture when, in the opinion of the funds' respective
investment advisers, it is advisable to do so because of market conditions.
 
    The investment  policies of  both Dean  Witter World  Wide and  Dean  Witter
Global  Dividend  are not  fundamental and  may be  changed by  their respective
Boards. The foregoing discussion is a  summary of the principal differences  and
similarities  between the investment policies of  the funds. For a more complete
discussion of each fund's policies,  see "Investment Objective and Policies"  in
each  fund's Prospectus and  "Investment Practices and  Policies" in each fund's
Statement of Additional Information.
 
INVESTMENT RESTRICTIONS
 
    The investment  restrictions adopted  by  Dean Witter  World Wide  and  Dean
Witter Global Dividend as fundamental policies are substantially similar and are
summarized  under  the  caption "Investment  Restrictions"  in  their respective
Prospectuses and Statements of Additional Information. A fundamental  investment
restriction  cannot  be  changed  without  the  vote  of  the  majority  of  the
outstanding voting  securities  of a  fund,  as defined  in  the 1940  Act.  The
differences  are  as  follows: (a)  Dean  Witter  World Wide  has  a fundamental
restriction that it may not, as to 100% of its total assets, purchase more  than
10%  of all outstanding voting securities or  any class of securities of any one
issuer, whereas Dean Witter Global Dividend is subject to a similar  fundamental
limitation  with  respect  to  75%  of its  total  assets;  (b)  both  funds are
prohibited from lending money or securities except by the purchase of  portfolio
securities  in  which  the funds  may  invest consistent  with  their investment
objectives and policies except that Dean  Witter World Wide may lend  securities
in  an  amount not  exceeding 10%  of its  total assets  and Dean  Witter Global
Dividend may lend securities in an amount not exceeding 25% of its total assets,
each amount at  the time  of the  loan; (c) Dean  Witter Global  Dividend has  a
fundamental  restriction  that  it may  not,  except for  obligations  issued or
guaranteed by the U.S. Government  or its agencies or instrumentalities,  invest
more  than 5% of the value of its total assets in securities of issuers having a
record together  with  predecessors  of  less than  three  years  of  continuous
operation  whereas Dean Witter World  Wide has no such  limitation; and (d) Dean
Witter World Wide may not invest more than 5% of the value of its net assets  in
warrants,  including not more than  2% of such assets  in warrants not listed on
the New York or American Stock Exchange; Dean Witter Global Dividend has no such
limitation.
 
                                       19
<PAGE>
    In addition, Dean Witter  World Wide has a  fundamental restriction that  it
may  not invest in  securities of any  issuer if, in  the exercise of reasonable
diligence, the fund has determined that any officer or trustee of the fund or of
the fund's  investment manager  owns more  than  1/2 of  1% of  the  outstanding
securities  of such issuer, and such officers and trustees who own more than 1/2
of 1% own in the  aggregate more than 5% of  the outstanding securities of  such
issuer; Dean Witter Global Dividend has no such limitation.
 
              ADDITIONAL INFORMATION ABOUT DEAN WITTER WORLD WIDE
                        AND DEAN WITTER GLOBAL DIVIDEND
 
GENERAL
 
    For  a discussion  of the organization  and operation of  Dean Witter Global
Dividend and  Dean  Witter  World  Wide, see  "The  Fund  and  its  Management,"
"Investment  Objective and Policies,"  "Investment Restrictions" and "Prospectus
Summary" in, and the cover page of, their respective Prospectuses.
 
FINANCIAL INFORMATION
 
    For certain financial information about Dean Witter Global Dividend and Dean
Witter World Wide, see "Financial  Highlights" and "Performance Information"  in
their respective Prospectuses.
 
MANAGEMENT
 
    For  information about the respective Board of Trustees, investment manager,
sub-adviser (in the case of Dean Witter World Wide) and the Distributor of  Dean
Witter  Global  Dividend and  Dean  Witter World  Wide,  see "The  Fund  and its
Management" and "Investment Objective  and Policies" in, and  on the back  cover
of, their respective Prospectuses.
 
DESCRIPTION OF SECURITIES AND SHAREHOLDER INQUIRIES
 
    For a description of the nature and most significant attributes of shares of
Dean  Witter  World  Wide  and  Dean  Witter  Global  Dividend,  and information
regarding  shareholder  inquiries,   see  "Additional   Information"  in   their
respective Prospectuses.
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
 
    For  a discussion  of Dean  Witter Global  Dividend's and  Dean Witter World
Wide's  policies  with  respect  to  dividends,  distributions  and  taxes,  see
"Dividends, Distributions and Taxes" in their respective Prospectuses as well as
the discussion herein under "Synopsis -- Purchases, Exchanges and Redemptions."
 
PURCHASES, REPURCHASES AND REDEMPTIONS
 
    For  a discussion of how Dean Witter Global Dividend's and Dean Witter World
Wide's shares may be purchased, repurchased and redeemed, see "Purchase of  Fund
Shares",  "Shareholder  Services"  and "Redemptions  and  Repurchases"  in their
respective Prospectuses.
 
                                       20
<PAGE>
                  MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE
 
    For   a  discussion  of  Dean  Witter  Global  Dividend's  performance,  see
management's letter to  shareholders in its  Annual Report for  its fiscal  year
ended  March 31,  1997 accompanying this  Proxy Statement and  Prospectus. For a
discussion of the performance of Dean  Witter World Wide, see its Annual  Report
for its fiscal year ended March 31, 1997.
 
                        FINANCIAL STATEMENTS AND EXPERTS
 
    The  financial statements of Dean Witter Global Dividend, for the year ended
March 31, 1997, and Dean  Witter World Wide, for the  year ended March 31,  1997
that  are incorporated by  reference in the  Statement of Additional Information
relating to  the  Registration  Statement  on Form  N-14  of  which  this  Proxy
Statement and Prospectus forms a part have been audited by Price Waterhouse LLP,
independent  accountants.  The financial  statements  have been  incorporated by
reference in  reliance upon  such  reports given  upon  the authority  of  Price
Waterhouse LLP as experts in accounting and auditing.
 
                                 LEGAL MATTERS
 
    Certain  legal  matters concerning  the issuance  of  shares of  Dean Witter
Global Dividend will be passed upon  by Gordon Altman Butowsky Weitzen Shalov  &
Wein,  New York,  New York. Such  firm will  rely on Lane  Altman &  Owens as to
matters of Massachusetts law.
 
                             AVAILABLE INFORMATION
 
    Additional information about Dean Witter  World Wide and Dean Witter  Global
Dividend  is  available, as  applicable, in  the  following documents  which are
incorporated herein by reference: (i)  Dean Witter Global Dividend's  Prospectus
dated  July 28,  1997, accompanying this  Proxy Statement  and Prospectus, which
Prospectus forms a part of Post-Effective Amendment No. 6 to Dean Witter  Global
Dividend's  Registration Statement on Form  N-1A (File Nos. 33-59004; 811-7458);
(ii) Dean Witter Global Dividend's Annual Report for its fiscal year ended March
31, 1997 and its unaudited Semi-Annual Report for the six months ended September
30, 1997, accompanying this  Proxy Statement and  Prospectus; (iii) Dean  Witter
World  Wide's Prospectus dated July  28, 1997, which Prospectus  forms a part of
Post-Effective Amendment  No.  16  to  Dean  Witter  World  Wide's  Registration
Statement on Form N-1A (File Nos. 2-85148; 811-3800); and (iv) Dean Witter World
Wide's  Annual  Report for  the fiscal  year  March 31,  1997 and  its unaudited
Semi-Annual Report for the  six months ended September  30, 1997. The  foregoing
documents  may be  obtained without  charge by  calling (212)  392-2550 or (800)
526-3143.
 
    Dean Witter World Wide  and Dean Witter Global  Dividend are subject to  the
informational  requirements of the Securities Exchange  Act of 1934, as amended,
and in  accordance  therewith,  file  reports and  other  information  with  the
Commission.  Proxy  material, reports  and other  information about  Dean Witter
World Wide and Dean  Witter Global Dividend  which are of  public record can  be
inspected and copied at public reference facilities maintained by the Commission
at  Room 1204, Judiciary Plaza, 450 Fifth Street, NW, Washington, D.C. 20549 and
certain of its regional offices, and copies of such materials can be obtained at
prescribed rates from the  Public Reference Branch,  Office of Consumer  Affairs
and  Information Services, Securities and  Exchange Commission, Washington, D.C.
20549.
 
                                       21
<PAGE>
                                 OTHER BUSINESS
 
    Management of Dean  Witter World Wide  knows of no  business other than  the
matters  specified above which  will be presented at  the Meeting. Since matters
not known at the time of the solicitation may come before the Meeting, the proxy
as solicited confers  discretionary authority  with respect to  such matters  as
properly  come  before the  Meeting, including  any adjournment  or adjournments
thereof, and it is  the intention of the  persons named as attorneys-in-fact  in
the proxy to vote this proxy in accordance with their judgment on such matters.
 
                                          By Order of the Board of Trustees
 
                                          Barry Fink,
                                          SECRETARY
 
   
March 12, 1998
    
 
                                       22
<PAGE>
                                                                       EXHIBIT A
 
                      AGREEMENT AND PLAN OF REORGANIZATION
 
    THIS  AGREEMENT AND PLAN OF REORGANIZATION  ("Agreement") is made as of this
29th day of  January, 1998, by  and between DEAN  WITTER GLOBAL DIVIDEND  GROWTH
SECURITIES,  a Massachusetts business trust  ("Dean Witter Global Dividend") and
DEAN WITTER WORLD WIDE INVESTMENT  TRUST, a Massachusetts business trust  ("Dean
Witter World Wide").
 
    This   Agreement  is  intended  to   be  and  is  adopted   as  a  "plan  of
reorganization"  within  the   meaning  of   Treas.  Reg.   1.368-2(g),  for   a
reorganization  under Section 368(a)(1) of the Internal Revenue Code of 1986, as
amended (the "Code"). The reorganization ("Reorganization") will consist of  the
transfer  to Dean Witter Global  Dividend of substantially all  of the assets of
Dean Witter World  Wide in  exchange for the  assumption by  Dean Witter  Global
Dividend of all stated liabilities of Dean Witter World Wide and the issuance by
Dean  Witter Global Dividend  of shares of beneficial  interest, par value $0.01
per share (the "Dean Witter Global  Dividend Shares"), to be distributed,  after
the  Closing Date  hereinafter referred to,  to the shareholders  of Dean Witter
World Wide in liquidation of Dean Witter World Wide as provided herein, all upon
the terms and conditions hereinafter set forth in this Agreement.
 
    In consideration  of  the  premises  and of  the  covenants  and  agreements
hereinafter set forth, the parties hereto covenant and agree as follows:
 
1.  THE REORGANIZATION AND LIQUIDATION OF DEAN WITTER WORLD WIDE
 
    1.1   Subject to the terms and conditions  herein set forth and on the basis
of the representations and warranties  contained herein, Dean Witter World  Wide
agrees  to assign,  deliver and  otherwise transfer  the Dean  Witter World Wide
Assets (as defined  in paragraph 1.2)  to Dean Witter  Global Dividend and  Dean
Witter  Global Dividend Growth agrees in exchange therefor to assume all of Dean
Witter World  Wide's stated  liabilities on  the Closing  Date as  set forth  in
paragraph  1.3(a) and to  deliver to Dean  Witter World Wide  the number of Dean
Witter Global Dividend  Growth Shares, including  fractional Dean Witter  Global
Dividend  Shares,  determined in  the manner  set forth  in paragraph  2.3. Such
transactions shall  take place  at the  closing provided  for in  paragraph  3.1
("Closing").
 
    1.2   (a) The "Dean Witter World Wide Assets" shall consist of all property,
including without  limitation,  all cash  (other  than the  "Cash  Reserve"  (as
defined  in  paragraph 1.3(b)),  cash equivalents,  securities and  dividend and
interest receivables  owned by  Dean  Witter World  Wide,  and any  deferred  or
prepaid  expenses shown  as an asset  on Dean  Witter World Wide's  books on the
Valuation Date.
 
         (b) On or  prior to  the Valuation Date,  Dean Witter  World Wide  will
provide  Dean Witter  Global Dividend with  a list  of all of  Dean Witter World
Wide's assets to be assigned, delivered and otherwise transferred to Dean Witter
Global Dividend  and of  the stated  liabilities to  be assumed  by Dean  Witter
Global  Dividend pursuant to this Agreement. Dean Witter World Wide reserves the
right to sell any of the securities on such list but will not, without the prior
approval of Dean Witter Global Dividend, acquire any additional securities other
than securities of the type in which Dean Witter Global Dividend is permitted to
invest and in amounts agreed to in writing by Dean Witter Global Dividend.  Dean
Witter  Global Dividend  will, within a  reasonable time prior  to the Valuation
Date, furnish Dean  Witter World  Wide with a  statement of  Dean Witter  Global
Dividend's  investment objectives, policies  and restrictions and  a list of the
securities, if  any, on  the list  referred to  in the  first sentence  of  this
paragraph  that  do  not conform  to  Dean Witter  Global  Dividend's investment
objective, policies and restrictions. In the  event that Dean Witter World  Wide
holds any investments that Dean Witter Global Dividend is not permitted to hold,
Dean  Witter  World Wide  will dispose  of such  securities on  or prior  to the
Valuation Date. In  addition, if it  is determined that  the portfolios of  Dean
Witter  World  Wide  and Dean  Witter  Global Dividend,  when  aggregated, would
contain investments exceeding certain
<PAGE>
percentage limitations imposed upon Dean Witter Global Dividend with respect  to
such  investments, Dean  Witter World  Wide if  requested by  Dean Witter Global
Dividend will, on or prior to the  Valuation Date, dispose of and/or reinvest  a
sufficient  amount of  such investments as  may be necessary  to avoid violating
such limitations as of the Closing Date (as defined in paragraph 3.1).
 
    1.3   (a) Dean  Witter World  Wide will  endeavor to  discharge all  of  its
liabilities  and  obligations on  or prior  to the  Valuation Date.  Dean Witter
Global Dividend  will assume  all stated  liabilities, which  includes,  without
limitation,  all expenses, costs, charges and reserves reflected on an unaudited
Statement of Assets and  Liabilities of Dean Witter  World Wide prepared by  the
Treasurer  of Dean Witter World Wide as of the Valuation Date in accordance with
generally accepted  accounting principles  consistently applied  from the  prior
audited period.
 
         (b)  On the Valuation Date, Dean Witter World Wide may establish a cash
reserve, which shall not exceed 5% of Dean Witter World Wide's net assets as  of
the  close of business on the Valuation  Date ("Cash Reserve") to be retained by
Dean Witter  World  Wide  and  used  for the  payment  of  its  liabilities  not
discharged prior to the Valuation Date and for the expenses of dissolution.
 
    1.4  In order for Dean Witter World Wide to comply with Section 852(a)(1) of
the  Code  and to  avoid having  any  investment company  taxable income  or net
capital gain  (as  defined in  Sections  852(b)(2)  and 1222(11)  of  the  Code,
respectively) in the short taxable year ending with its dissolution, Dean Witter
World  Wide will on  or before the Valuation  Date (a) declare  a dividend in an
amount large  enough so  that it  will have  declared dividends  of all  of  its
investment company taxable income and net capital gain, if any, for such taxable
year  (determined without  regard to any  deduction for dividends  paid) and (b)
distribute such dividend.
 
    1.5  On the Closing Date or  as soon as practicable thereafter, Dean  Witter
World  Wide will distribute Dean Witter  Global Dividend Shares received by Dean
Witter World Wide  pursuant to  paragraph 1.1 pro  rata to  its shareholders  of
record  determined as  of the  close of  business on  the Valuation  Date ("Dean
Witter World Wide Shareholders"). Each  Dean Witter World Wide Shareholder  will
receive  the class of shares of Dean  Witter Global Dividend that corresponds to
the class of shares of Dean Witter World Wide currently held by that Dean Witter
World Wide Shareholder. Accordingly, the Dean Witter Global Dividend Shares will
be distributed as follows:  each of the Class  A, Class B, Class  C and Class  D
shares of Dean Witter Global Dividend will be distributed to holders of Class A,
Class  B, Class C  and Class D  shares of Dean  Witter World Wide, respectively.
Such distribution will be accomplished by an instruction, signed by Dean  Witter
World  Wide's Secretary,  to transfer  Dean Witter  Global Dividend  Shares then
credited to Dean Witter World Wide's account on the books of Dean Witter  Global
Dividend  to open accounts  on the books  of Dean Witter  Global Dividend in the
names of the Dean Witter World Wide Shareholders and representing the respective
pro rata number of Dean Witter Global Dividend Shares due such Dean Witter World
Wide Shareholders. All issued and outstanding  shares of Dean Witter World  Wide
simultaneously  will be  canceled on  Dean Witter  World Wide's  books; however,
share certificates  representing  interests  in  Dean  Witter  World  Wide  will
represent  a number of Dean Witter Global Dividend Shares after the Closing Date
as determined in accordance with paragraph 2.3. Dean Witter Global Dividend will
issue certificates representing Dean Witter Global Dividend Shares in connection
with such exchange only  upon the written  request of a  Dean Witter World  Wide
Shareholder.
 
    1.6   Ownership of Dean  Witter Global Dividend Shares  will be shown on the
books of  Dean  Witter Global  Dividend's  transfer agent.  Dean  Witter  Global
Dividend  Shares will be  issued in the  manner described in  Dean Witter Global
Dividend's current Prospectus and Statement of Additional Information.
 
    1.7  Any transfer taxes payable upon issuance of Dean Witter Global Dividend
Shares in a name other than the registered holder of Dean Witter Global Dividend
Shares on Dean Witter World Wide's books as of the
 
                                      A-2
<PAGE>
close of business on the Valuation Date  shall, as a condition of such  issuance
and  transfer, be paid by the person  to whom Dean Witter Global Dividend Shares
are to be issued and transferred.
 
    1.8  Any  reporting responsibility of  Dean Witter World  Wide is and  shall
remain the responsibility of Dean Witter World Wide up to and including the date
on  which  Dean Witter  World  Wide is  dissolved  and deregistered  pursuant to
paragraph 1.9.
 
    1.9  Within one year  after the Closing Date,  Dean Witter World Wide  shall
pay  or make  provision for the  payment of  all its liabilities  and taxes, and
distribute to the  shareholders of Dean  Witter World  Wide as of  the close  of
business  on the  Valuation Date  any remaining amount  of the  Cash Reserve (as
reduced by the estimated cost of  distributing it to shareholders). Dean  Witter
World Wide shall be dissolved as a Massachusetts business trust and deregistered
as  an investment company under  the Investment Company Act  of 1940, as amended
("1940 Act"), promptly  following the  making of all  distributions pursuant  to
paragraph 1.5.
 
    1.10    Copies of all books and  records maintained on behalf of Dean Witter
World Wide in  connection with  its obligations under  the 1940  Act, the  Code,
state blue sky laws or otherwise in connection with this Agreement will promptly
after  the Closing be  delivered to officers  of Dean Witter  Global Dividend or
their designee and Dean Witter Global Dividend or its designee shall comply with
applicable record  retention requirements  to which  Dean Witter  World Wide  is
subject under the 1940 Act.
 
2.  VALUATION
 
    2.1   The value of the  Dean Witter World Wide Assets  shall be the value of
such assets computed as of 4:00 p.m. on the New York Stock Exchange on the third
business day following the receipt of the requisite approval by shareholders  of
Dean  Witter World  Wide of this  Agreement or at  such time on  such earlier or
later date after such approval as may  be mutually agreed upon in writing  (such
time  and  date  being  hereinafter  called  the  "Valuation  Date"),  using the
valuation procedures set  forth in  Dean Witter Global  Dividend's then  current
Prospectus and Statement of Additional Information.
 
    2.2  The net asset value of a Dean Witter Global Dividend Share shall be the
net  asset value per share  computed on the Valuation  Date, using the valuation
procedures set forth in  Dean Witter Global  Dividend's then current  Prospectus
and Statement of Additional Information.
 
    2.3   The number of Dean Witter Global Dividend Shares (including fractional
shares, if any) to be issued hereunder shall be determined, with respect to each
class, by dividing the aggregate  net asset value of  each class of Dean  Witter
World Wide shares (determined in accordance with paragraph 2.1) by the net asset
value  per share  of the  corresponding class  of shares  of Dean  Witter Global
Dividend (determined in  accordance with  paragraph 2.2). For  purposes of  this
paragraph,  the aggregate net asset value of each class of shares of Dean Witter
World Wide shall not include the amount of the Cash Reserve.
 
    2.4  All computations of value shall be made by Dean Witter Services Company
Inc. ("Services") in accordance with its regular practice in pricing Dean Witter
Global Dividend. Dean Witter Global Dividend  shall cause Services to deliver  a
copy of its valuation report at the Closing.
 
3.  CLOSING AND CLOSING DATE
 
    3.1   The Closing  shall take place  on the next  business day following the
Valuation Date (the "Closing Date"). The Closing  shall be held as of 9:00  a.m.
Eastern  time, or at such other time as the parties may agree. The Closing shall
be held in a location mutually agreeable to the parties hereto. All acts  taking
place  at the Closing  shall be deemed  to take place  simultaneously as of 9:00
a.m. Eastern time on the Closing Date unless otherwise provided.
 
                                      A-3
<PAGE>
    3.2  Portfolio securities held by Dean Witter World Wide and represented  by
a  certificate or other  written instrument shall  be presented by  it or on its
behalf to The  Chase Manhattan  Bank (the  "Custodian"), as  custodian for  Dean
Witter  Global  Dividend,  for  examination no  later  than  five  business days
preceding the Valuation Date. Such portfolio securities (together with any  cash
or  other assets) shall be delivered by  Dean Witter World Wide to the Custodian
for the account of Dean Witter Global Dividend on or before the Closing Date  in
conformity  with  applicable  custody provisions  under  the 1940  Act  and duly
endorsed in proper  form for transfer  in such condition  as to constitute  good
delivery  thereof  in  accordance  with the  custom  of  brokers.  The portfolio
securities shall  be  accompanied  by  all necessary  Federal  and  state  stock
transfer  stamps or a check  for the appropriate purchase  price of such stamps.
Portfolio securities and instruments deposited with a securities depository  (as
defined  in Rule 17f-4 under  the 1940 Act) shall be  delivered on or before the
Closing Date  by  book-entry in  accordance  with customary  practices  of  such
depository  and the  Custodian. The  cash delivered  shall be  in the  form of a
Federal Funds wire, payable to the order of "The Chase Manhattan Bank, Custodian
for Dean Witter Global Dividend Growth Securities."
 
    3.3   In the  event that  on  the Valuation  Date, (a)  the New  York  Stock
Exchange  shall be closed to  trading or trading thereon  shall be restricted or
(b) trading or the reporting of trading  on such Exchange or elsewhere shall  be
disrupted  so that, in the judgment of both Dean Witter Global Dividend and Dean
Witter World Wide, accurate  appraisal of the  value of the  net assets of  Dean
Witter  Global Dividend or  the Dean Witter World  Wide Assets is impracticable,
the Valuation Date shall be postponed until the first business day after the day
when trading shall have been fully resumed without restriction or disruption and
reporting shall have been restored.
 
    3.4   If requested,  Dean Witter  World Wide  shall deliver  to Dean  Witter
Global  Dividend or its  designee (a) at  the Closing, a  list, certified by its
Secretary, of the names,  addresses and taxpayer  identification numbers of  the
Dean  Witter World Wide Shareholders and  the number and percentage ownership of
outstanding Dean Witter World Wide shares  owned by each such Dean Witter  World
Wide  Shareholder, all as of the Valuation  Date, and (b) as soon as practicable
after the  Closing,  all  original  documentation  (including  Internal  Revenue
Service  forms, certificates, certifications and correspondence) relating to the
Dean Witter World Wide Shareholders'  taxpayer identification numbers and  their
liability for or exemption from back-up withholding. Dean Witter Global Dividend
shall  issue and deliver to such Secretary a confirmation evidencing delivery of
Dean Witter Global Dividend Shares  to be credited on  the Closing Date to  Dean
Witter  World Wide  or provide evidence  satisfactory to Dean  Witter World Wide
that such Dean Witter Global Dividend  Shares have been credited to Dean  Witter
World  Wide's  account on  the  books of  Dean  Witter Global  Dividend.  At the
Closing, each  party shall  deliver to  the other  such bills  of sale,  checks,
assignments,  share certificates,  if any, receipts  or other  documents as such
other party or its counsel may reasonably request.
 
4.  COVENANTS OF DEAN WITTER GLOBAL DIVIDEND AND DEAN WITTER WORLD WIDE
 
    4.1  Except  as otherwise  expressly provided  herein with  respect to  Dean
Witter  World Wide, Dean Witter Global Dividend  and Dean Witter World Wide each
will operate its business in the ordinary course between the date hereof and the
Closing Date, it  being understood that  such ordinary course  of business  will
include customary dividends and other distributions.
 
    4.2   Dean Witter Global Dividend will  prepare and file with the Securities
and Exchange Commission  ("Commission") a  registration statement  on Form  N-14
under  the Securities  Act of  1933, as amended  ("1933 Act"),  relating to Dean
Witter Global Dividend Shares ("Registration Statement"). Dean Witter World Wide
will provide Dean Witter Global Dividend  with the Proxy Materials as  described
in paragraph 4.3 below, for inclusion in the Registration Statement. Dean Witter
World Wide will further provide Dean Witter Global
 
                                      A-4
<PAGE>
Dividend  with  such other  information and  documents  relating to  Dean Witter
Global  Dividend  as  are  reasonably  necessary  for  the  preparation  of  the
Registration Statement.
 
    4.3   Dean  Witter World  Wide will  call a  meeting of  its shareholders to
consider and act upon this Agreement and  to take all other action necessary  to
obtain  approval of the transactions contemplated herein. Dean Witter World Wide
will  prepare  the  notice  of  meeting,  form  of  proxy  and  proxy  statement
(collectively,  "Proxy Materials") to  be used in  connection with such meeting;
provided that Dean Witter  Global Dividend will furnish  Dean Witter World  Wide
with its currently effective prospectus for inclusion in the Proxy Materials and
with  such  other information  relating  to Dean  Witter  Global Dividend  as is
reasonably necessary for the preparation of the Proxy Materials.
 
    4.4   Dean Witter  World Wide  will assist  Dean Witter  Global Dividend  in
obtaining  such information as  Dean Witter Global  Dividend reasonably requests
concerning the beneficial ownership of Dean Witter World Wide shares.
 
    4.5   Subject  to the  provisions  of  this Agreement,  Dean  Witter  Global
Dividend  and Dean Witter World  Wide will each take, or  cause to be taken, all
action, and do or cause to be  done, all things reasonably necessary, proper  or
advisable to consummate and make effective the transactions contemplated by this
Agreement.
 
    4.6   Dean Witter World Wide shall furnish  or cause to be furnished to Dean
Witter Global Dividend within 30 days after the Closing Date a statement of Dean
Witter World  Wide's  assets and  liabilities  as  of the  Closing  Date,  which
statement  shall be certified by Dean Witter World Wide's Treasurer and shall be
in  accordance  with  generally  accepted  accounting  principles   consistently
applied.  As promptly as practicable,  but in any case  within 60 days after the
Closing Date, Dean Witter World Wide shall furnish Dean Witter Global  Dividend,
in  such form as  is reasonably satisfactory  to Dean Witter  Global Dividend, a
statement certified by Dean Witter World  Wide's Treasurer of Dean Witter  World
Wide's earnings and profits for Federal income tax purposes that will be carried
over to Dean Witter Global Dividend pursuant to Section 381 of the Code.
 
    4.7   As  soon after  the Closing  Date as  is reasonably  practicable, Dean
Witter World Wide (a) shall prepare and  file all Federal and other tax  returns
and  reports of Dean Witter World Wide required  by law to be filed with respect
to all periods ending on  or before the Closing  Date but not theretofore  filed
and  (b) shall pay all  Federal and other taxes shown  as due thereon and/or all
Federal and  other taxes  that were  unpaid as  of the  Closing Date,  including
without limitation, all taxes for which the provision for payment was made as of
the Closing Date (as represented in paragraph 5.2(k)).
 
    4.8   Dean Witter  Global Dividend agrees  to use all  reasonable efforts to
obtain the approvals and  authorizations required by the  1933 Act and the  1940
Act  and to make such filings required by the state Blue Sky and securities laws
as it may deem appropriate in order to continue its operations after the Closing
Date.
 
5.  REPRESENTATIONS AND WARRANTIES
 
    5.1  Dean  Witter Global  Dividend represents  and warrants  to Dean  Witter
World Wide as follows:
 
         (a)  Dean Witter  Global Dividend  is a  validly existing Massachusetts
business trust with full power to carry on its business as presently conducted;
 
         (b) Dean  Witter  Global  Dividend  is  a  duly  registered,  open-end,
management  investment company, and  its registration with  the Commission as an
investment company under the 1940 Act  and the registration of its shares  under
the 1933 Act are in full force and effect;
 
         (c)  All of  the issued  and outstanding  shares of  Dean Witter Global
Dividend have been offered and sold in compliance in all material respects  with
applicable    registration   requirements   of   the    1933   Act   and   state
 
                                      A-5
<PAGE>
securities laws. Shares  of Dean Witter  Global Dividend are  registered in  all
jurisdictions in which they are required to be registered under state securities
laws  and other laws, and said  registrations, including any periodic reports or
supplemental filings, are  complete and current,  all fees required  to be  paid
have been paid, and Dean Witter Global Dividend is not subject to any stop order
and is fully qualified to sell its shares in each state in which its shares have
been registered;
 
         (d)  The current Prospectus and  Statement of Additional Information of
Dean Witter Global Dividend conform in  all material respects to the  applicable
requirements of the 1933 Act and the 1940 Act and the regulations thereunder and
do  not include  any 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,  in  light  of  the  circumstances  under  which  they  were  made, not
misleading;
 
         (e) Dean Witter Global Dividend is not in, and the execution,  delivery
and  performance of this Agreement  will not result in  a, material violation of
any provision of Dean Witter Global  Dividend's Declaration of Trust or  By-Laws
or of any agreement, indenture, instrument, contract, lease or other undertaking
to which Dean Witter Global Dividend is a party or by which it is bound;
 
         (f)  No litigation or administrative  proceeding or investigation of or
before any court or governmental body is presently pending or, to its knowledge,
threatened against  Dean Witter  Global Dividend  or any  of its  properties  or
assets which, if adversely determined, would materially and adversely affect its
financial  condition  or the  conduct of  its business;  and Dean  Witter Global
Dividend knows of no facts that might form the basis for the institution of such
proceedings and is not  a party to  or subject to the  provisions of any  order,
decree  or  judgment of  any  court or  governmental  body which  materially and
adversely affects, or is reasonably  likely to materially and adversely  effect,
its business or its ability to consummate the transactions herein contemplated;
 
         (g)  The Statement of Assets  and Liabilities, Statement of Operations,
Statement of Changes in Net Assets  and Financial Highlights for the year  ended
March 31, 1997, of Dean Witter Global Dividend certified by Price Waterhouse LLP
(copies of which have been furnished to Dean Witter World Wide), fairly present,
in  all materials respects, Dean Witter Global Dividend's financial condition as
of such date in  accordance with generally  accepted accounting principles,  and
its  results  of  such  operations,  changes in  its  net  assets  and financial
highlights for such period, and as of such date there were no known  liabilities
of  Dean Witter Global Dividend (contingent  or otherwise) not disclosed therein
that  would  be  required  in  accordance  with  generally  accepted  accounting
principles to be disclosed therein;
 
         (h)  All issued and outstanding Dean Witter Global Dividend Shares are,
and at the Closing Date will be, duly and validly issued and outstanding,  fully
paid  and nonassessable  with no personal  liability attaching  to the ownership
thereof, except as set forth under the caption "Additional Information" in  Dean
Witter  Global Dividend's  current Prospectus  incorporated by  reference in the
Registration Statement. Dean  Witter Global Dividend  does not have  outstanding
any  options, warrants or other  rights to subscribe for  or purchase any of its
shares;
 
         (i) The execution, delivery and performance of this Agreement have been
duly authorized  by all  necessary action  on  the part  of Dean  Witter  Global
Dividend,  and this Agreement constitutes a valid and binding obligation of Dean
Witter Global Dividend enforceable in accordance  with its terms, subject as  to
enforcement,  to  bankruptcy, insolvency,  reorganization, moratorium  and other
laws relating to or affecting creditors rights and to general equity principles.
No other consents, authorizations or approvals are necessary in connection  with
Dean Witter Global Dividend's performance of this Agreement;
 
                                      A-6
<PAGE>
         (j)  Dean Witter Global  Dividend Shares to be  issued and delivered to
Dean Witter  World  Wide,  for  the  account  of  the  Dean  Witter  World  Wide
Shareholders,  pursuant to the terms of this  Agreement will at the Closing Date
have been duly authorized and,  when so issued and  delivered, will be duly  and
validly  issued Dean Witter Global  Dividend Shares, and will  be fully paid and
non-assessable with no  personal liability attaching  to the ownership  thereof,
except  as set forth  under the caption "Additional  Information" in Dean Witter
Global  Dividend's  current   Prospectus  incorporated  by   reference  in   the
Registration Statement;
 
         (k)  All material  Federal and  other tax  returns and  reports of Dean
Witter Global Dividend required by law to be filed on or before the Closing Date
have been filed and are correct, and all Federal and other taxes shown as due or
required to  be shown  as due  on said  returns and  reports have  been paid  or
provision  has been made for the payment thereof, and to the best of Dean Witter
Global Dividend's knowledge,  no such  return is  currently under  audit and  no
assessment has been asserted with respect to any such return;
 
         (l)  For  each taxable  year since  its  inception, Dean  Witter Global
Dividend has met the requirements of Subchapter M of the Code for  qualification
and  treatment as a "regulated investment  company" and neither the execution or
delivery of nor  the performance of  its obligations under  this Agreement  will
adversely  affect, and no other events are reasonably likely to occur which will
adversely affect the ability of Dean Witter Global Dividend to continue to  meet
the requirements of Subchapter M of the Code;
 
         (m) Since March 31, 1997 there has been no change by Dean Witter Global
Dividend  in  accounting  methods,  principles,  or  practices,  including those
required by generally accepted accounting principles;
 
         (n) The information furnished or to be furnished by Dean Witter  Global
Dividend for use in registration statements, proxy materials and other documents
which  may be necessary in connection  with the transactions contemplated hereby
shall be accurate and complete in all material respects and shall comply in  all
material  respects  with  Federal  securities  and  other  laws  and regulations
applicable thereto; and
 
         (o) The Proxy Materials  to be included  in the Registration  Statement
(only  insofar  as they  relate to  Dean  Witter Global  Dividend) will,  on the
effective date  of the  Registration  Statement and  on  the Closing  Date,  not
contain any untrue statement of a material fact or omit to state a material fact
required  to be stated therein  or necessary to make  the statements therein, in
light of the circumstances under which such statements were made, not materially
misleading.
 
    5.2  Dean Witter  World Wide represents and  warrants to Dean Witter  Global
Dividend as follows:
 
         (a) Dean Witter World Wide is a validly existing Massachusetts business
trust with full power to carry on its business as presently conducted;
 
         (b)  Dean Witter World Wide is  a duly registered, open-end, management
investment company, and its  registration with the  Commission as an  investment
company under the 1940 Act and the registration of its shares under the 1933 Act
are in full force and effect;
 
         (c)  All of the issued and outstanding shares of beneficial interest of
Dean Witter World Wide have been offered and sold in compliance in all  material
respects with applicable requirements of the 1933 Act and state securities laws.
Shares  of Dean Witter World  Wide are registered in  all jurisdictions in which
they are  required  to  be  registered and  said  registrations,  including  any
periodic  reports or  supplemental filings, are  complete and  current, all fees
required to be paid have been paid, and Dean Witter World Wide is not subject to
any stop order and is fully qualified to sell its shares in each state in  which
its shares have been registered;
 
         (d)  The current Prospectus and  Statement of Additional Information of
Dean Witter  World Wide  conform  in all  material  respects to  the  applicable
requirements    of    the    1933   Act    and    the   1940    Act    and   the
 
                                      A-7
<PAGE>
regulations thereunder and  do not include  any 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, in light  of the circumstances  under
which they were made, not misleading;
 
         (e)  Dean Witter  World Wide  is not,  and the  execution, delivery and
performance of this Agreement  will not result, in  a material violation of  any
provision  of Dean Witter World Wide's Declaration of Trust or By-Laws or of any
agreement, indenture, instrument, contract, lease or other undertaking to  which
Dean Witter World Wide is a party or by which it is bound;
 
         (f)  No litigation or administrative  proceeding or investigation of or
before any court or governmental body is presently pending or, to its knowledge,
threatened against Dean  Witter World Wide  or any of  its properties or  assets
which,  if  adversely  determined,  would materially  and  adversely  affect its
financial condition or the conduct of  its business; and Dean Witter World  Wide
knows  of  no  facts that  might  form the  basis  for the  institution  of such
proceedings and is not  a party to  or subject to the  provisions of any  order,
decree  or  judgment of  any  court or  governmental  body which  materially and
adversely affects, or is reasonably  likely to materially and adversely  effect,
its business or its ability to consummate the transactions herein contemplated;
 
         (g)  The Statement of Assets  and Liabilities, Statement of Operations,
Statement of Changes in Net Assets and Financial Highlights of Dean Witter World
Wide for  the year  ended March  31,  1997, certified  by Price  Waterhouse  LLP
(copies  of which have been or will be furnished to Dean Witter Global Dividend)
fairly present, in  all material  respects, Dean Witter  World Wide's  financial
condition  as of such  date, and its  results of operations,  changes in its net
assets and financial  highlights for  such period in  accordance with  generally
accepted  accounting  principles,  and  as  of such  date  there  were  no known
liabilities of Dean Witter  World Wide (contingent  or otherwise) not  disclosed
therein  that would be required in accordance with generally accepted accounting
principles to be disclosed therein;
 
         (h)  Dean  Witter  World  Wide  has  no  material  contracts  or  other
commitments  (other than this Agreement) that  will be terminated with liability
to it prior to the Closing Date;
 
         (i) All issued and  outstanding shares of Dean  Witter World Wide  are,
and  at the Closing Date will be, duly and validly issued and outstanding, fully
paid and nonassessable  with no  personal liability attaching  to the  ownership
thereof,  except as set forth under the caption "Additional Information" in Dean
Witter  World  Wide's  current  Prospectus  incorporated  by  reference  in  the
Registration  Statement. Dean  Witter World Wide  does not  have outstanding any
options, warrants  or other  rights to  subscribe  for or  purchase any  of  its
shares,  nor is there outstanding any security convertible to any of its shares.
All such shares will, at the time of Closing, be held by the persons and in  the
amounts  set forth in the  list of shareholders submitted  to Dean Witter Global
Dividend pursuant to paragraph 3.4;
 
         (j) The execution, delivery and performance of this Agreement will have
been duly authorized prior to  the Closing Date by  all necessary action on  the
part of Dean Witter World Wide, and subject to the approval of Dean Witter World
Wide's  shareholders, this Agreement constitutes  a valid and binding obligation
of Dean Witter World Wide, enforceable in accordance with its terms, subject  as
to  enforcement to bankruptcy, insolvency,  reorganization, moratorium and other
laws relating to or affecting creditors rights and to general equity principles.
No other consents, authorizations or approvals are necessary in connection  with
Dean Witter World Wide's performance of this Agreement;
 
         (k)  All material  Federal and  other tax  returns and  reports of Dean
Witter World Wide  required by law  to be filed  on or before  the Closing  Date
shall  have been filed and are correct and  all Federal and other taxes shown as
due or required to be shown as due on said returns and reports have been paid or
provision has
 
                                      A-8
<PAGE>
been made for the payment thereof, and  to the best of Dean Witter World  Wide's
knowledge,  no such return is  currently under audit and  no assessment has been
asserted with respect to any such return;
 
         (l) For each taxable year since  its inception, Dean Witter World  Wide
has  met all the requirements of Subchapter  M of the Code for qualification and
treatment as  a "regulated  investment  company" and  neither the  execution  or
delivery  of nor  the performance of  its obligations under  this Agreement will
adversely affect, and no other events are reasonably likely to occur which  will
adversely  affect the ability of Dean Witter  World Wide to continue to meet the
requirements of Subchapter M of the Code;
 
         (m) At the  Closing Date,  Dean Witter World  Wide will  have good  and
valid  title to the  Dean Witter World  Wide Assets, subject  to no liens (other
than the obligation, if any, to  pay the purchase price of portfolio  securities
purchased  by Dean Witter World Wide which have not settled prior to the Closing
Date), security  interests or  other  encumbrances, and  full right,  power  and
authority  to assign, deliver and otherwise  transfer such assets hereunder, and
upon delivery and  payment for  such assets,  Dean Witter  Global Dividend  will
acquire  good and  marketable title thereto,  subject to no  restrictions on the
full transfer thereof, including any restrictions as might arise under the  1933
Act;
 
         (n) On the effective date of the Registration Statement, at the time of
the  meeting of Dean Witter  World Wide's shareholders and  on the Closing Date,
the Proxy Materials  (exclusive of  the currently effective  Dean Witter  Global
Dividend  Prospectus contained therein) will (i) comply in all material respects
with the provisions of  the 1933 Act,  the Securities Exchange  Act of 1934,  as
amended  ("1934 Act") and the  1940 Act and the  regulations thereunder and (ii)
not contain any untrue statement of a material fact or omit to state a  material
fact  required to be stated therein or  necessary to make the statements therein
not misleading. Any other  information furnished by Dean  Witter World Wide  for
use  in the Registration Statement or in  any other manner that may be necessary
in connection with the  transactions contemplated hereby  shall be accurate  and
complete  and  shall comply  in all  material  respects with  applicable Federal
securities and other laws and regulations thereunder;
 
         (o) Dean Witter  World Wide will,  on or prior  to the Valuation  Date,
declare  one  or more  dividends or  other  distributions to  shareholders that,
together with all  previous dividends and  other distributions to  shareholders,
shall  have the effect of distributing to the shareholders all of its investment
company taxable income and net capital gain, if any, through the Valuation  Date
(computed without regard to any deduction for dividends paid);
 
         (p)  Dean  Witter  World  Wide  has  maintained  or  has  caused  to be
maintained on its  behalf all  books and accounts  as required  of a  registered
investment company in compliance with the requirements of Section 31 of the 1940
Act and the Rules thereunder; and
 
         (q) Dean Witter World Wide is not acquiring Dean Witter Global Dividend
Shares to be issued hereunder for the purpose of making any distribution thereof
other than in accordance with the terms of this Agreement.
 
6.  CONDITIONS PRECEDENT TO OBLIGATIONS OF DEAN WITTER WORLD WIDE
 
    The  obligations of  Dean Witter World  Wide to  consummate the transactions
provided for herein  shall be subject,  at its election,  to the performance  by
Dean  Witter  Global Dividend  of  all the  obligations  to be  performed  by it
hereunder on or before the Closing Date and, in addition thereto, the  following
conditions:
 
         6.1  All representations and warranties  of Dean Witter Global Dividend
contained in this Agreement shall be  true and correct in all material  respects
as   of  the  date  hereof   and,  except  as  they   may  be  affected  by  the
 
                                      A-9
<PAGE>
transactions  contemplated by  this Agreement, as  of the Closing  Date with the
same force and effect as if made on and as of the Closing Date;
 
    6.2 Dean Witter Global Dividend  shall have delivered  to Dean Witter  World
       Wide  a certificate of its President  and Treasurer, in a form reasonably
satisfactory to Dean Witter World Wide and dated as of the Closing Date, to  the
effect  that the representations  and warranties of  Dean Witter Global Dividend
made in this  Agreement are  true and  correct at and  as of  the Closing  Date,
except  as  they  may  be  affected by  the  transactions  contemplated  by this
Agreement, and  as  to  such other  matters  as  Dean Witter  World  Wide  shall
reasonably request;
 
    6.3 Dean  Witter World  Wide shall  have received  a favorable  opinion from
       Gordon Altman  Butowsky Weitzen  Shalov &  Wein, counsel  to Dean  Witter
Global Dividend, dated as of the Closing Date, to the effect that:
 
         (a)  Dean Witter  Global Dividend  is a  validly existing Massachusetts
business trust, and has the power to own all of its properties and assets and to
carry on  its business  as  presently conducted  (Massachusetts counsel  may  be
relied  upon in delivering such  opinion); (b) Dean Witter  Global Dividend is a
duly registered, open-end, management  investment company, and its  registration
with the Commission as an investment company under the 1940 Act is in full force
and  effect; (c) this Agreement has been duly authorized, executed and delivered
by Dean Witter  Global Dividend  and, assuming that  the Registration  Statement
complies  with  the 1933  Act, the  1934 Act  and the  1940 Act  and regulations
thereunder and  assuming  due  authorization, execution  and  delivery  of  this
Agreement  by Dean Witter World Wide, is  a valid and binding obligation of Dean
Witter Global  Dividend  enforceable  against Dean  Witter  Global  Dividend  in
accordance with its terms, subject as to enforcement, to bankruptcy, insolvency,
reorganization,  moratorium and  other laws  relating to  or affecting creditors
rights and to general equity principles; (d) Dean Witter Global Dividend  Shares
to  be  issued  to Dean  Witter  World  Wide Shareholders  as  provided  by this
Agreement are duly  authorized and upon  such delivery will  be validly  issued,
fully paid and non-assessable (except as set forth under the caption "Additional
Information" in Dean Witter Global Dividend's Prospectus), and no shareholder of
Dean  Witter  Global  Dividend  has any  preemptive  rights  to  subscription or
purchase in  respect  thereof  (Massachusetts  counsel may  be  relied  upon  in
delivering  such opinion); (e) the execution  and delivery of this Agreement did
not, and  the consummation  of the  transactions contemplated  hereby will  not,
violate  Dean Witter Global Dividend's Declaration  of Trust or By-Laws; and (f)
to the knowledge of such counsel,  no consent, approval, authorization or  order
of  any court  or governmental authority  of the  United States or  any state is
required for the consummation by Dean Witter Global Dividend of the transactions
contemplated herein, except such as have  been obtained under the 1933 Act,  the
1934  Act and the  1940 Act and such  as may be  required under state securities
laws; and
 
    6.4 As of the Closing Date, there shall have been no material change in  the
       investment  objective, policies and restrictions  nor any increase in the
investment management  fees  or  annual  fees pursuant  to  Dean  Witter  Global
Dividend's 12b-1 plan of distribution from those described in Dean Witter Global
Dividend's  Prospectus and  Statement of  Additional Information  dated July 28,
1997.
 
7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF DEAN WITTER GLOBAL DIVIDEND
 
    The obligations of Dean Witter Global Dividend to complete the  transactions
provided  for herein shall  be subject, at  its election, to  the performance by
Dean Witter World Wide of all the obligations to be performed by it hereunder on
or before the Closing Date and, in addition thereto, the following conditions:
 
    7.1 All representations and warranties of  Dean Witter World Wide  contained
       in  this Agreement shall be true and  correct in all material respects as
of  the   date  hereof   and,  except   as   they  may   be  affected   by   the
 
                                      A-10
<PAGE>
transactions  contemplated by  this Agreement, as  of the Closing  Date with the
same force and effect as if made on and as of the Closing Date;
 
    7.2 Dean Witter  World  Wide shall  have  delivered to  Dean  Witter  Global
       Dividend at the Closing a certificate of its President and its Treasurer,
in  form and substance satisfactory to Dean  Witter Global Dividend and dated as
of the Closing Date,  to the effect that  the representations and warranties  of
Dean  Witter World Wide made in this Agreement are true and correct at and as of
the  Closing  Date,  except  as  they  may  be  affected  by  the   transactions
contemplated  by this  Agreement, and  as to such  other matters  as Dean Witter
Global Dividend shall reasonably request;
 
    7.3 Dean Witter  World  Wide shall  have  delivered to  Dean  Witter  Global
       Dividend  a  statement  of the  Dean  Witter  World Wide  Assets  and its
liabilities, together  with  a  list  of  Dean  Witter  World  Wide's  portfolio
securities  and other assets  showing the respective  adjusted bases and holding
periods thereof for income  tax purposes, as of  the Closing Date, certified  by
the Treasurer of Dean Witter World Wide;
 
    7.4 Dean  Witter  World  Wide shall  have  delivered to  Dean  Witter Global
       Dividend within three business days after the Closing a letter from Price
Waterhouse LLP dated  as of  the Closing  Date stating  that (a)  such firm  has
performed  a limited review of the Federal  and state income tax returns of Dean
Witter World Wide for each  of the last three taxable  years and, based on  such
limited review, nothing came to their attention that caused them to believe that
such returns did not properly reflect, in all material respects, the Federal and
state  income tax liabilities of Dean Witter  World Wide for the periods covered
thereby, (b) for the  period from March  31, 1998 to  and including the  Closing
Date,  such firm  has performed a  limited review (based  on unaudited financial
data) to ascertain the amount of  applicable Federal, state and local taxes  and
has determined that same either have been paid or reserves have been established
for  payment of such taxes,  and, based on such  limited review, nothing came to
their attention that caused them to believe that the taxes paid or reserves  set
aside  for payment of such taxes were not adequate in all materials respects for
the satisfaction of all Federal, state and local tax liabilities for the  period
from  March 31,  1998 to and  including the Closing  Date and (c)  based on such
limited reviews, nothing  came to their  attention that caused  them to  believe
that  Dean Witter World Wide would not qualify as a regulated investment company
for Federal income tax purposes for any such year or period;
 
    7.5 Dean Witter  Global  Dividend  shall  have received  at  the  Closing  a
       favorable  opinion  from Gordon  Altman Butowsky  Weitzen Shalov  & Wein,
counsel to Dean Witter World  Wide, dated as of the  Closing Date to the  effect
that:
 
         (a) Dean Witter World Wide is a validly existing Massachusetts business
trust  and has the power to own all of its properties and assets and to carry on
its business as presently conducted (Massachusetts counsel may be relied upon in
delivering such  opinion); (b)  Dean Witter  World Wide  is a  duly  registered,
open-end, management investment company under the 1940 Act, and its registration
with the Commission as an investment company under the 1940 Act is in full force
and  effect; (c) this Agreement has been duly authorized, executed and delivered
by Dean Witter World Wide and, assuming that the Registration Statement complies
with the 1933 Act, the 1934 Act and the 1940 Act and the regulations  thereunder
and assuming due authorization, execution and delivery of this Agreement by Dean
Witter  Global Dividend, is a valid and  binding obligation of Dean Witter World
Wide enforceable against Dean  Witter World Wide in  accordance with its  terms,
subject as to enforcement, to bankruptcy, insolvency, reorganization, moratorium
and  other laws relating to or affecting  creditors rights and to general equity
principles; (d) the execution  and delivery of this  Agreement did not, and  the
consummation  of  the transactions  contemplated hereby  will not,  violate Dean
Witter World Wide's Declaration of Trust or By-Laws; and (e) to the knowledge of
such counsel,  no consent,  approval, authorization  or order  of any  court  or
governmental  authority of the  United States or  any state is  required for the
 
                                      A-11
<PAGE>
consummation by Dean Witter World Wide of the transactions contemplated  herein,
except  such as have been obtained under the 1933 Act, the 1934 Act and the 1940
Act and such as may be required under state securities laws; and
 
    7.6 On the Closing Date, the Dean Witter World Wide Assets shall include  no
       assets  that Dean Witter Global Dividend, by reason of limitations of the
fund's Declaration of Trust or otherwise, may not properly acquire.
 
8.  FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF DEAN WITTER GLOBAL DIVIDEND
    AND DEAN WITTER WORLD WIDE
 
    The obligations of Dean  Witter World Wide and  Dean Witter Global  Dividend
hereunder  are each  subject to  the further  conditions that  on or  before the
Closing Date:
 
    8.1 This Agreement and the transactions contemplated herein shall have  been
       approved  by the requisite vote of  the holders of the outstanding shares
of Dean Witter World Wide in accordance with the provisions of Dean Witter World
Wide's Declaration of Trust, and certified copies of the resolutions  evidencing
such approval shall have been delivered to Dean Witter Global Dividend;
 
    8.2 On  the  Closing Date,  no  action, suit  or  other proceeding  shall be
       pending before any court or governmental agency in which it is sought  to
restrain or prohibit, or obtain damages or other relief in connection with, this
Agreement or the transactions contemplated herein;
 
    8.3 All consents of other parties and all other consents, orders and permits
       of  Federal, state and  local regulatory authorities  (including those of
the Commission  and of  state  Blue Sky  and securities  authorities,  including
"no-action"  positions  of  and exemptive  orders  from such  Federal  and state
authorities) deemed  necessary by  Dean Witter  Global Dividend  or Dean  Witter
World Wide to permit consummation, in all material respects, of the transactions
contemplated herein shall have been obtained, except where failure to obtain any
such  consent, order  or permit  would not  involve risk  of a  material adverse
effect on the assets or properties of Dean Witter Global Dividend or Dean Witter
World Wide;
 
    8.4 The Registration Statement  shall have become  effective under the  1933
       Act,  no stop orders suspending the effectiveness thereof shall have been
issued and, to  the best knowledge  of the parties  hereto, no investigation  or
proceeding for that purpose shall have been instituted or be pending, threatened
or contemplated under the 1933 Act;
 
    8.5 Dean  Witter  World Wide  shall  have declared  and  paid a  dividend or
       dividends and/or other distribution or distributions that, together  with
all  previous  such  dividends  or  distributions,  shall  have  the  effect  of
distributing to the Dean Witter World Wide Shareholders all of Dean Witter World
Wide's investment  company  taxable  income  (computed  without  regard  to  any
deduction  for dividends paid) and all of  its net capital gain (after reduction
for any capital loss carry-forward and computed without regard to any  deduction
for  dividends paid) for all taxable years ending on or before the Closing Date;
and
 
    8.6 The parties shall have received a  favorable opinion of the law firm  of
       Gordon   Altman   Butowsky  Weitzen   Shalov  &   Wein  (based   on  such
representations as such law  firm shall reasonably  request), addressed to  Dean
Witter  Global Dividend and Dean Witter World  Wide, which opinion may be relied
upon by the shareholders of Dean Witter World Wide, substantially to the  effect
that, for Federal income tax purposes:
 
         (a)  The  transfer of  substantially all  of  Dean Witter  World Wide's
assets in exchange for Dean Witter Global Dividend Shares and the assumption  by
Dean  Witter Global Dividend of certain  stated liabilities of Dean Witter World
Wide followed  by the  distribution by  Dean Witter  World Wide  of Dean  Witter
Global Dividend
 
                                      A-12
<PAGE>
   
Shares  to the Dean  Witter World Wide  Shareholders in exchange  for their Dean
Witter World Wide shares will  constitute a "reorganization" within the  meaning
of  Section 368(a)(1)(C) of the Code, and Dean Witter World Wide and Dean Witter
Global Dividend will each be a "party to a reorganization" within the meaning of
Section 368(b) of the Code;
    
 
         (b) No gain or loss will  be recognized by Dean Witter Global  Dividend
upon  the receipt of the assets of Dean Witter World Wide solely in exchange for
Dean Witter Global  Dividend Shares  and the  assumption by  Dean Witter  Global
Dividend of the stated liabilities of Dean Witter World Wide;
 
         (c)  No gain or loss will be  recognized by Dean Witter World Wide upon
the transfer of  the assets  of Dean  Witter World  Wide to  Dean Witter  Global
Dividend  in exchange for Dean Witter  Global Dividend Shares and the assumption
by  Dean  Witter  Global  Dividend  of  the  stated  liabilities  or  upon   the
distribution of Dean Witter Global Dividend Shares to the Dean Witter World Wide
Shareholders in exchange for their Dean Witter World Wide shares;
 
         (d)  No gain or loss  will be recognized by  the Dean Witter World Wide
Shareholders upon the  exchange of the  Dean Witter World  Wide shares for  Dean
Witter Global Dividend Shares;
 
         (e)  The aggregate  tax basis  for Dean  Witter Global  Dividend Shares
received  by  each  Dean   Witter  World  Wide   Shareholder  pursuant  to   the
reorganization  will be the same  as the aggregate tax  basis of the Dean Witter
World Wide  Shares  held  by  each  such  Dean  Witter  World  Wide  Shareholder
immediately prior to the Reorganization;
 
         (f)  The holding  period of  Dean Witter  Global Dividend  Shares to be
received by each  Dean Witter  World Wide  Shareholder will  include the  period
during  which the Dean Witter World Wide Shares surrendered in exchange therefor
were held (provided  such Dean  Witter World Wide  Shares were  held as  capital
assets on the date of the Reorganization);
 
         (g)  The tax basis of the assets  of Dean Witter World Wide acquired by
Dean Witter Global Dividend will be the same as the tax basis of such assets  to
Dean Witter World Wide immediately prior to the Reorganization; and
 
         (h)  The holding period of the assets  of Dean Witter World Wide in the
hands of Dean Witter Global Dividend will include the period during which  those
assets were held by Dean Witter World Wide.
 
    Notwithstanding  anything herein to the contrary, neither Dean Witter Global
Dividend nor Dean Witter World Wide may  waive the conditions set forth in  this
paragraph 8.6.
 
9.  FEES AND EXPENSES
 
    9.1 (a)  Dean  Witter  InterCapital  Inc.  ("InterCapital"),  the investment
       manager to both Dean Witter World  Wide and Dean Witter Global  Dividend,
shall  bear all  expenses incurred  in connection with  the carrying  out of the
provisions of this  Agreement, including  legal and  accounting fees,  printing,
filing  and proxy  solicitation expenses and  portfolio transfer  taxes (if any)
incurred in connection  with the consummation  of the transactions  contemplated
herein.
 
         (b)   In  the  event  the  transactions  contemplated  herein  are  not
consummated by  reason  of  Dean  Witter World  Wide's  or  Dean  Witter  Global
Dividend's  being either  unwilling or  unable to  go forward,  each fund's only
respective obligations  hereunder shall  be to  reimburse InterCapital  for  all
reasonable   out-of-pocket  fees  and  expenses   incurred  by  InterCapital  in
connection with those transactions.
 
                                      A-13
<PAGE>
10.  ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES
 
    10.1  This Agreement constitutes the entire agreement between the parties.
 
    10.2    The  representations,  warranties and  covenants  contained  in this
Agreement or in any document delivered pursuant hereto or in connection herewith
shall survive the consummation of  the transactions contemplated herein,  except
that  the representations,  warranties and covenants  of Dean  Witter World Wide
hereunder shall not  survive the  dissolution and complete  liquidation of  Dean
Witter World Wide in accordance with Section 1.9.
 
11.  TERMINATION
 
    11.1   This  Agreement may be  terminated and  the transactions contemplated
hereby may be abandoned at any time prior to the Closing:
 
         (a) by the mutual  written consent of Dean  Witter World Wide and  Dean
Witter Global Dividend;
 
   
         (b)  by either Dean Witter Global Dividend or Dean Witter World Wide by
notice to the other,  without liability to the  terminating party on account  of
such  termination (providing the termination party  is not otherwise in material
default or breach of this Agreement) if  the Closing shall not have occurred  on
or before August 31, 1998; or
    
 
         (c) by either Dean Witter Global Dividend or Dean Witter World Wide, in
writing   without  liability  to  the  terminating  party  on  account  of  such
termination (provided the terminating party is not otherwise in material default
or breach of this Agreement),  if (i) the other party  shall fail to perform  in
any material respect its agreements contained herein required to be performed on
or  prior to the Closing  Date, (ii) the other  party materially breaches any of
its representations, warranties  or covenants contained  herein, (iii) the  Dean
Witter  World Wide  shareholders fail to  approve this Agreement  at any meeting
called for  such  purpose at  which  a quorum  was  present or  (iv)  any  other
condition herein expressed to be precedent to the obligations of the terminating
party  has not been met and it reasonably  appears that it will not or cannot be
met.
 
    11.2  (a) Termination of this  Agreement pursuant to paragraphs 11.1 (a)  or
(b)  shall terminate all obligations of the parties hereunder and there shall be
no liability for  damages on the  part of  Dean Witter Global  Dividend or  Dean
Witter World Wide, or the trustees or officers of Dean Witter Global Dividend or
Dean Witter World Wide, to any other party or its trustees or officers.
 
         (b)  Termination of this Agreement pursuant to paragraph 11.1 (c) shall
terminate all  obligations  of the  parties  hereunder  and there  shall  be  no
liability  for damages on the part of Dean Witter Global Dividend or Dean Witter
World Wide, or the trustees or officers  of Dean Witter Global Dividend or  Dean
Witter World Wide, except that any party in breach of this Agreement shall, upon
demand,  reimburse  InterCapital  for  all  reasonable  out-of-pocket  fees  and
expenses incurred  in  connection with  the  transactions contemplated  by  this
Agreement, including legal, accounting and filing fees.
 
12.  AMENDMENTS
 
    This  Agreement may be  amended, modified or supplemented  in such manner as
may be mutually agreed upon in  writing by the parties; provided, however,  that
following  the meeting of  Dean Witter World Wide's  shareholders called by Dean
Witter World Wide  pursuant to  paragraph 4.3, no  such amendment  may have  the
effect  of changing  the provisions  for determining  the number  of Dean Witter
Global Dividend Shares to be issued  to the Dean Witter World Wide  Shareholders
under   this  Agreement  to  the  detriment  of  such  Dean  Witter  World  Wide
Shareholders without their further approval.
 
                                      A-14
<PAGE>
13.  MISCELLANEOUS
 
    13.1  The article and paragraph headings contained in this Agreement are for
reference purposes  only  and  shall  not  affect in  any  way  the  meaning  or
interpretation of this Agreement.
 
    13.2   This Agreement may be executed in any number of counterparts, each of
which shall be deemed an original.
 
    13.3  This Agreement shall be  governed by and construed in accordance  with
the laws of the Commonwealth of Massachusetts.
 
    13.4   This  Agreement shall bind  and inure  to the benefit  of the parties
hereto and  their  respective  successors  and assigns,  but  no  assignment  or
transfer  hereof or of any rights or  obligations hereunder shall be made by any
party without the written consent of  the other party. Nothing herein  expressed
or  implied is intended or shall be construed to confer upon or give any person,
firm or  corporation,  other  than  the  parties  hereto  and  their  respective
successors  and  assigns, any  rights or  remedies  under or  by reason  of this
Agreement.
 
   
    13.5   The  obligations  and  liabilities of  Dean  Witter  Global  Dividend
hereunder  are  solely those  of Dean  Witter Global  Dividend. It  is expressly
agreed that no  shareholder, nominee,  trustee, officer, agent,  or employee  of
Dean  Witter Global Dividend shall be personally liable hereunder. The execution
and delivery of  this Agreement  have been authorized  by the  trustees of  Dean
Witter  Global Dividend and signed by  authorized officers of Dean Witter Global
Dividend acting as  such, and neither  such authorization by  such trustees  nor
such  execution and delivery by such officers  shall be deemed to have been made
by any  of  them  individually  or  to impose  any  liability  on  any  of  them
personally.
    
 
    13.6   The obligations  and liabilities of Dean  Witter World Wide hereunder
are solely those  of Dean  Witter World  Wide. It  is expressly  agreed that  no
shareholder,  nominee, trustee, officer, agent, or employee of Dean Witter World
Wide shall be personally  liable hereunder. The execution  and delivery of  this
Agreement  have been authorized  by the trustees  of Dean Witter  World Wide and
signed by authorized  officers of  Dean Witter World  Wide acting  as such,  and
neither  such authorization by such trustees  nor such execution and delivery by
such officers shall be deemed to have  been made by any of them individually  or
to impose any liability on any of them personally.
 
                                      A-15
<PAGE>
    IN  WITNESS WHEREOF, each of the parties hereto has caused this Agreement to
be executed by a duly authorized officer.
 
                                       DEAN WITTER WORLD WIDE INVESTMENT TRUST
 
                                       By:        /s/ Charles A. Fiumefreddo
                                         ---------------------------------------
                                         Name:  Charles A. Fiumefreddo
 
                                       Title:   President
 
                                       DEAN WITTER GLOBAL DIVIDEND GROWTH
                                       SECURITIES
 
                                       By:        /s/ Barry Fink
                                         ---------------------------------------
                                         Name:  Barry Fink
 
                                           Title:   Vice President
 
                                      A-16
<PAGE>
                                                                       EXHIBIT B
 
              PROSPECTUS
              JULY 28, 1997
 
              Dean Witter Global Dividend Growth Securities (the "Fund") is an
open-end, diversified management investment company whose investment objective
is to provide reasonable current income and long-term growth of income and
capital. The Fund invests primarily in common stock of issuers worldwide, with a
record of paying dividends and the potential for increasing dividends. (See
"Investment Objective and Policies.")
 
               The Fund offers four classes of shares (each, a "Class"), each
with a different combination of sales charges, ongoing fees and other features.
The different distribution arrangements permit an investor to choose the method
of purchasing shares that the investor believes is most beneficial given the
amount of the purchase, the length of time the investor expects to hold the
shares and other relevant circumstances. Shares of the Fund held prior to July
28, 1997 have been designated Class B shares. (See "Purchase of Fund
Shares--Alternative Purchase Arrangements.")
 
               This Prospectus sets forth concisely the information you should
know before investing in the Fund. It should be read and retained for future
reference. Additional information about the Fund is contained in the Statement
of Additional Information, dated July 28, 1997, which has been filed with the
Securities and Exchange Commission, and which is available at no charge upon
request of the Fund at the address or telephone numbers listed on this page. The
Statement of Additional Information is incorporated herein by reference.
 
     DEAN WITTER DISTRIBUTORS INC.
      DISTRIBUTOR
 
      TABLE OF CONTENTS
 
Prospectus Summary/2
Summary of Fund Expenses/4
Financial Highlights/6
The Fund and its Management/7
Investment Objective and Policies/7
  Risk Considerations and Investment Practices/8
Investment Restrictions/15
Purchase of Fund Shares/15
Shareholder Services/26
Redemptions and Repurchases/29
Dividends, Distributions and Taxes/30
Performance Information/31
Additional Information/32
 
SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, AND THE SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
    Dean Witter Global Dividend
    Growth Securities
    Two World Trade Center
    New York, New York 10048
    (212) 392-2550 or
    (800) 869-NEWS (toll-free)
<PAGE>
PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
 
<TABLE>
<S>               <C>
The               The Fund is organized as a Trust, commonly known as a Massachusetts business trust, and is an
Fund              open-end, diversified management investment company. The Fund invests primarily in common stock of
                  issuers worldwide, with a record of paying dividends and the potential for increasing dividends.
- ----------------------------------------------------------------------------------------------------------------------
Shares Offered    Shares of beneficial interest with $0.01 par value (see page 32). The Fund offers four Classes of
                  shares, each with a different combination of sales charges, ongoing fees and other features (see
                  pages 15-26).
- ----------------------------------------------------------------------------------------------------------------------
Minimum           The minimum initial investment for each Class is $1,000 ($100 if the account is opened through
Purchase          EasyInvest-SM-). Class D shares are only available to persons investing $5 million or more and to
                  certain other limited categories of investors. For the purpose of meeting the minimum $5 million
                  investment for Class D shares, and subject to the $1,000 minimum initial investment for each Class
                  of the Fund, an investor's existing holdings of Class A shares and shares of funds for which Dean
                  Witter InterCapital Inc. serves as investment manager ("Dean Witter Funds") that are sold with a
                  front-end sales charge, and concurrent investments in Class D shares of the Fund and other Dean
                  Witter Funds that are multiple class funds, will be aggregated. The minimum subsequent investment is
                  $100 (see page 15).
- ----------------------------------------------------------------------------------------------------------------------
Investment        The investment objective of the Fund is to provide reasonable current income and long-term growth of
Objective         income and capital.
- ----------------------------------------------------------------------------------------------------------------------
Investment        Dean Witter InterCapital Inc. ("InterCapital"), the Investment Manager of the Fund, and its wholly-
Manager           owned subsidiary, Dean Witter Services Company Inc., serve in various investment management,
                  advisory, management and administrative capacities to 100 investment companies and other portfolios
                  with assets of approximately $96.6 billion at June 30, 1997 (see page 7).
- ----------------------------------------------------------------------------------------------------------------------
Management        The Investment Manager receives a monthly fee at the annual rate of 0.75% of daily net assets,
Fee               scaled down on assets over $3.5 billion. This fee is higher than that paid by most other investment
                  companies (see page 7.)
- ----------------------------------------------------------------------------------------------------------------------
Distributor       Dean Witter Distributors Inc. (the "Distributor"). The Fund has adopted a distribution plan pursuant
and               to Rule 12b-1 under the Investment Company Act (the "12b-1 Plan") with respect to the distribution
Distribution      fees paid by the Class A, Class B and Class C shares of the Fund to the Distributor. The entire
Fee               12b-1 fee payable by Class A and a portion of the 12b-1 fee payable by each of Class B and Class C
                  equal to 0.25% of the average daily net assets of the Class are currently each characterized as a
                  service fee within the meaning of the National Association of Securities Dealers, Inc. guidelines.
                  The remaining portion of the 12b-1 fee, if any, is characterized as an asset-based sales charge (see
                  pages 15 and 24).
- ----------------------------------------------------------------------------------------------------------------------
Alternative       Four classes of shares are offered:
Purchase
Arrangements      - Class A shares are offered with a front-end sales charge, starting at 5.25% and reduced for larger
                  purchases. Investments of $1 million or more (and investments by certain other limited categories of
                  investors) are not subject to any sales charge at the time of purchase but a contingent deferred
                  sales charge ("CDSC") of 1.0% may be imposed on redemptions within one year of purchase. The Fund is
                  authorized to reimburse the Distributor for specific expenses incurred in promoting the distribution
                  of the Fund's Class A shares and servicing shareholder accounts pursuant to the Fund's 12b-1 Plan.
                  Reimbursement may in no event exceed an amount equal to payments at an annual rate of 0.25% of
                  average daily net assets of the Class (see pages 15, 19 and 24).
</TABLE>
 
                                       2
<PAGE>
- --------------------------------------------------------------------------------
<TABLE>
<S>               <C>
                  - Class B shares are offered without a front-end sales charge, but will in most cases be subject to
                  a CDSC (scaled down from 5.0% to 1.0%) if redeemed within six years after purchase. The CDSC will be
                  imposed on any redemption of shares if after such redemption the aggregate current value of a Class
                  B account with the Fund falls below the aggregate amount of the investor's purchase payments made
                  during the six years preceding the redemption. A different CDSC schedule applies to investments by
                  certain qualified plans. Class B shares are also subject to a 12b-1 fee assessed at the annual rate
                  of 1.0% of the lesser of: (a) the average daily net sales of the Fund's Class B shares or (b) the
                  average daily net assets of Class B. All shares of the Fund held prior to July 28, 1997 have been
                  designated Class B shares. Shares held before May 1, 1997 will convert to Class A shares in May,
                  2007. In all other instances, Class B shares convert to Class A shares approximately ten years after
                  the date of the original purchase (see pages 15, 21 and 24).
 
                  - Class C shares are offered without a front-end sales charge, but will in most cases be subject to
                  a CDSC of 1.0% if redeemed within one year after purchase. The Fund is authorized to reimburse the
                  Distributor for specific expenses incurred in promoting the distribution of the Fund's Class C
                  shares and servicing shareholder accounts pursuant to the Fund's 12b-1 Plan. Reimbursement may in no
                  event exceed an amount equal to payments at an annual rate of 1.0% of average daily net assets of
                  the Class (see pages 15, 23 and 24).
 
                  - Class D shares are offered only to investors meeting an initial investment minimum of $5 million
                  and to certain other limited categories of investors. Class D shares are offered without a front-end
                  sales charge or CDSC and are not subject to any 12b-1 fee (see pages 15 and 24).
- ----------------------------------------------------------------------------------------------------------------------
Dividends         Dividends from net investment income are paid quarterly. Capital gains, if any, are distributed at
and               least annually. The Fund may, however, determine to retain all or part of any net long-term capital
Capital Gains     gains in any year for reinvestment. Dividends and capital gains distributions paid on shares of a
Distributions     Class are automatically reinvested in additional shares of the same Class at net asset value unless
                  the shareholder elects to receive cash. Shares acquired by dividend and distribution reinvestment
                  will not be subject to any sales charge or CDSC (see pages 26 and 30).
- ----------------------------------------------------------------------------------------------------------------------
Redemption        Shares are redeemable by the shareholder at net asset value less any applicable CDSC on Class A,
                  Class B or Class C shares. An account may be involuntarily redeemed if the total value of the
                  account is less than $100 or, if the account was opened through EasyInvest-SM-, if after twelve
                  months the shareholder has invested less than $1,000 in the account (see page 29).
- ----------------------------------------------------------------------------------------------------------------------
Risks             The net asset value of the Fund's shares will fluctuate with changes in market value of portfolio
                  securities. It should be recognized that the foreign securities and markets in which the Fund
                  invests pose different and greater risks than those customarily associated with domestic securities
                  and their markets. The Fund may invest a portion of its assets in lower rated or unrated convertible
                  securities. Dividends payable by the Fund will vary in relation to the amounts of dividends and
                  interest earned on portfolio securities (see pages 8-14).
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>
 
  THE ABOVE IS QUALIFIED IN ITS ENTIRETY BY THE DETAILED INFORMATION APPEARING
                                   ELSEWHERE
        IN THIS PROSPECTUS AND THE STATEMENT OF ADDITIONAL INFORMATION.
 
                                       3
<PAGE>
SUMMARY OF FUND EXPENSES
- --------------------------------------------------------------------------------
 
    The following table illustrates all expenses and fees that a shareholder of
the Fund will incur. The expenses and fees set forth in the table are based on
the expenses and fees for the fiscal year ended March 31, 1997.
 
<TABLE>
<CAPTION>
                                                                       CLASS A      CLASS B      CLASS C      CLASS D
                                                                     -----------  -----------  -----------  -----------
<S>                                                                  <C>          <C>          <C>          <C>
SHAREHOLDER TRANSACTION EXPENSES
- -------------------------------------------------------------------
Maximum Sales Charge Imposed on Purchases (as a percentage of
 offering price)...................................................        5.25%(1)       None       None         None
Sales Charge Imposed on Dividend Reinvestments.....................        None         None         None         None
Maximum Contingent Deferred Sales Charge (as a percentage of
 original purchase price or redemption proceeds)...................        None(2)       5.00%(3)       1.00%(4)       None
Redemption Fees....................................................        None         None         None         None
Exchange Fee.......................................................        None         None         None         None
 
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET
 ASSETS)
- -------------------------------------------------------------------
Management Fees....................................................        0.72%        0.72%        0.72%        0.72%
12b-1 Fees (5) (6).................................................        0.25%        0.84%        1.00%        None
Other Expenses.....................................................        0.19%        0.19%        0.19%        0.19%
Total Fund Operating Expenses (7)..................................        1.16%        1.75%        1.91%        0.91%
</TABLE>
 
- ------------
(1) REDUCED FOR PURCHASES OF $25,000 AND OVER (SEE "PURCHASE OF FUND
    SHARES--INITIAL SALES CHARGE ALTERNATIVE--CLASS A SHARES").
 
(2) INVESTMENTS THAT ARE NOT SUBJECT TO ANY SALES CHARGE AT THE TIME OF PURCHASE
    ARE SUBJECT TO A CDSC OF 1.00% THAT WILL BE IMPOSED ON REDEMPTIONS MADE
    WITHIN ONE YEAR AFTER PURCHASE, EXCEPT FOR CERTAIN SPECIFIC CIRCUMSTANCES
    (SEE "PURCHASE OF FUND SHARES--INITIAL SALES CHARGE ALTERNATIVE--CLASS A
    SHARES").
 
(3) THE CDSC IS SCALED DOWN TO 1.00% DURING THE SIXTH YEAR, REACHING ZERO
    THEREAFTER.
 
(4) ONLY APPLICABLE TO REDEMPTIONS MADE WITHIN ONE YEAR AFTER PURCHASE (SEE
    "PURCHASE OF FUND SHARES-- LEVEL LOAD ALTERNATIVE--CLASS C SHARES").
 
(5) THE 12B-1 FEE IS ACCRUED DAILY AND PAYABLE MONTHLY. THE ENTIRE 12B-1 FEE
    PAYABLE BY CLASS A AND A PORTION OF THE 12B-1 FEE PAYABLE BY EACH OF CLASS B
    AND CLASS C EQUAL TO 0.25% OF THE AVERAGE DAILY NET ASSETS OF THE CLASS ARE
    CURRENTLY EACH CHARACTERIZED AS A SERVICE FEE WITHIN THE MEANING OF NATIONAL
    ASSOCIATION OF SECURITIES DEALERS, INC. ("NASD") GUIDELINES AND ARE PAYMENTS
    MADE FOR PERSONAL SERVICE AND/OR MAINTENANCE OF SHAREHOLDER ACCOUNTS. THE
    REMAINDER OF THE 12B-1 FEE, IF ANY, IS AN ASSET-BASED SALES CHARGE, AND IS A
    DISTRIBUTION FEE PAID TO THE DISTRIBUTOR TO COMPENSATE IT FOR THE SERVICES
    PROVIDED AND THE EXPENSES BORNE BY THE DISTRIBUTOR AND OTHERS IN THE
    DISTRIBUTION OF THE FUND'S SHARES (SEE "PURCHASE OF FUND SHARES--PLAN OF
    DISTRIBUTION").
 
(6) UPON CONVERSION OF CLASS B SHARES TO CLASS A SHARES, SUCH SHARES WILL BE
    SUBJECT TO THE LOWER 12B-1 FEE APPLICABLE TO CLASS A SHARES. NO SALES CHARGE
    IS IMPOSED AT THE TIME OF CONVERSION OF CLASS B SHARES TO CLASS A SHARES.
    CLASS C SHARES DO NOT HAVE A CONVERSION FEATURE AND, THEREFORE, ARE SUBJECT
    TO AN ONGOING 1.00% DISTRIBUTION FEE (SEE "PURCHASE OF FUND
    SHARES--ALTERNATIVE PURCHASE ARRANGEMENTS").
 
(7) THERE WERE NO OUTSTANDING SHARES OF CLASS A, CLASS C OR CLASS D PRIOR TO THE
    DATE OF THIS PROSPECTUS. ACCORDINGLY, "TOTAL FUND OPERATING EXPENSES," AS
    SHOWN ABOVE WITH RESPECT TO THOSE CLASSES, ARE BASED UPON THE SUM OF 12B-1
    FEES, MANAGEMENT FEES AND ESTIMATED "OTHER EXPENSES."
 
                                       4
<PAGE>
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
EXAMPLES                                                                              1 YEAR       3 YEARS      5 YEARS
- ----------------------------------------------------------------------------------  -----------  -----------  -----------
<S>                                                                                 <C>          <C>          <C>
You would pay the following expenses on a $1,000 investment assuming (1) a 5%
annual return and (2) redemption at the end of each time period:
    Class A.......................................................................   $      64    $      87    $     113
    Class B.......................................................................   $      68    $      85    $     115
    Class C.......................................................................   $      29    $      60    $     103
    Class D.......................................................................   $       9    $      29    $      50
 
You would pay the following expenses on the same $1,000 investment assuming no
redemption at the end of the period:
    Class A.......................................................................   $      64    $      87    $     113
    Class B.......................................................................   $      18    $      55    $      95
    Class C.......................................................................   $      19    $      60    $     103
    Class D.......................................................................   $       9    $      29    $      50
 
<CAPTION>
EXAMPLES                                                                             10 YEARS
- ----------------------------------------------------------------------------------  -----------
<S>                                                                                 <C>
You would pay the following expenses on a $1,000 investment assuming (1) a 5%
annual return and (2) redemption at the end of each time period:
    Class A.......................................................................   $     186
    Class B.......................................................................   $     206
    Class C.......................................................................   $     223
    Class D.......................................................................   $     112
You would pay the following expenses on the same $1,000 investment assuming no
redemption at the end of the period:
    Class A.......................................................................   $     186
    Class B.......................................................................   $     206
    Class C.......................................................................   $     223
    Class D.......................................................................   $     112
</TABLE>
 
    THE ABOVE EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES OF EACH CLASS MAY BE GREATER OR
LESS THAN THOSE SHOWN.
 
    The purpose of this table is to assist the investor in understanding the
various costs and expenses that an investor in the Fund will bear directly or
indirectly. For a more complete description of these costs and expenses, see
"The Fund and its Management," "Purchase of Fund Shares--Plan of Distribution"
and "Redemptions and Repurchases."
 
    Long-term shareholders of Class B and Class C may pay more in sales charges,
including distribution fees, than the economic equivalent of the maximum
front-end sales charges permitted by the NASD.
 
                                       5
<PAGE>
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
    The following ratios and per share data for a share of beneficial interest
outstanding throughout each period have been audited by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in conjunction
with the financial statements and notes thereto and the report of independent
accountants which are contained in the Statement of Additional Information.
Further information about the performance of the Fund is contained in the Fund's
Annual Report to Shareholders, which may be obtained without charge upon request
to the Fund. All shares of the Fund held prior to July 28, 1997 have been
designated Class B shares.
 
<TABLE>
<CAPTION>
                                                                      FOR THE
                                                                       PERIOD
                                                                      JUNE 30,
                                                                       1993*
                                      FOR THE YEAR ENDED MARCH 31,    THROUGH
                                     ------------------------------    MARCH
                                       1997       1996       1995     31, 1994
                                     --------   --------   --------   --------
<S>                                  <C>        <C>        <C>        <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of
   period..........................  $  12.86   $  11.41   $  10.81   $ 10.00
                                     --------   --------   --------   --------
  Net investment income............      0.12       0.13       0.14      0.05
  Net realized and unrealized
   gain............................      1.44       1.96       0.88      0.84
                                     --------   --------   --------   --------
  Total from investment
   operations......................      1.56       2.09       1.02      0.89
                                     --------   --------   --------   --------
  Less dividends and distributions
   from:
    Net investment income..........     (0.13)     (0.15)     (0.14)    (0.05)
    Net realized gain..............     (0.99)     (0.49)     (0.28)    (0.03)
                                     --------   --------   --------   --------
  Total dividends and
   distributions...................     (1.12)     (0.64)     (0.42)    (0.08)
                                     --------   --------   --------   --------
  Net asset value, end of period...  $  13.30   $  12.86   $  11.41   $ 10.81
                                     --------   --------   --------   --------
                                     --------   --------   --------   --------
TOTAL INVESTMENT RETURN+...........    12.58%     18.77%      9.60%   8.89%(1)
  Ratios to average net assets:
    Expenses.......................     1.75%      1.85%      1.97%   2.03%(2)
    Net investment income..........     0.93%      1.05%      1.22%   0.66%(2)
SUPPLEMENTAL DATA:
  Net assets, end of period, in
   millions........................    $3,038     $2,434     $1,854     $1,121
  Portfolio turnover rate..........       40%        40%        32%     21%(1)
  Average commission rate paid.....   $0.0289    $0.0311         --        --
</TABLE>
 
- ---------------
* COMMENCEMENT OF OPERATIONS.
+ DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE NET
  ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
(1) NOT ANNUALIZED.
(2) ANNUALIZED.
 
                                       6
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
    Dean Witter Global Dividend Growth Securities (the "Fund") is an open-end,
diversified management investment company. The Fund is a trust of the type
commonly known as a "Massachusetts business trust" and was organized under the
laws of Massachusetts on January 12, 1993.
 
    Dean Witter InterCapital, Inc. ("InterCapital" or the "Investment Manager"),
whose address is Two World Trade Center, New York, New York 10048, is the Fund's
Investment Manager. The Investment Manager, which was incorporated in July,
1992, is a wholly-owned subsidiary of Morgan Stanley, Dean Witter, Discover &
Co., a preeminent global financial services firm that maintains leading market
positions in each of its three primary businesses--securities, asset management
and credit services.
 
    InterCapital and its wholly-owned subsidiary, Dean Witter Services Company
Inc., serve in various investment management, advisory, management and
administrative capacities to 100 investment companies, thirty of which are
listed on the New York Stock Exchange, with combined total assets of
approximately $93.1 billion as of June 30, 1997. The Investment Manager also
manages portfolios of pension plans, other institutions and individuals which
aggregated approximately $3.5 billion at such date.
 
    The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs and manage the investment of the Fund's
assets, including the placing of orders for the purchase and sale of portfolio
securities. InterCapital has retained Dean Witter Services Company Inc. to
perform the aforementioned administrative services to the Fund.
 
    The Fund's Trustees review the various services provided by the Investment
Manager to ensure that the Fund's general investment policies and programs are
being properly carried out and that administrative services are being provided
to the Fund in a satisfactory manner.
 
    As full compensation for the services and facilities furnished to the Fund
and for expenses of the Fund assumed by the Investment Manager, the Fund pays
the Investment Manager monthly compensation calculated daily by applying the
annual rate of 0.75% to the Fund's net assets, scaled down at various asset
levels to 0.65% on assets over $3.5 billion. This fee is higher than that paid
by most other investment companies.
 
    For the fiscal year ended March 31, 1997, the Fund accrued total
compensation to the Investment Manager amounting to 0.72% of the Fund's average
daily net assets and the Fund's total expenses amounted to 1.75% of the Fund's
average daily net assets.
 
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------
 
    The investment objective of the Fund is to provide reasonable current income
and long-term growth of income and capital. This objective is fundamental and
may not be changed without shareholder approval. There is no assurance that the
objective will be achieved. The Fund seeks to achieve its investment objective
primarily through investments in common stock of issuers worldwide, with a
record of paying dividends and the potential for increasing dividends.
 
    The Fund will invest at least 65% of its total assets in dividend-paying
equity securities issued by issuers located in various countries around the
world. The Fund's investment portfolio will also be invested in at least three
separate countries.
 
    The Fund will maintain a flexible investment policy and, based on a
worldwide investment strategy, will invest in a diversified portfolio of
securities of companies located throughout the world. The Investment Manager
will seek those companies
 
                                       7
<PAGE>
which have, in its opinion, a strong record of earnings. The percentage of the
Fund's assets invested in particular geographic sectors will shift from time to
time in accordance with the judgement of the Investment Manager.
 
    Up to 35% of the value of the Fund's total assets may be invested in: (a)
convertible debt securities, convertible preferred securities, U.S. Government
securities (securities issued or guaranteed as to principal and interest by the
United States or its agencies and instrumentalities), fixed-income securities
issued by foreign governments and international organizations, investment grade
corporate debt securities and/or money market instruments when, in the opinion
of the Investment Manager, the projected total return on such securities is
equal to or greater than the expected total return on equity securities or when
such holdings might be expected to reduce the volatility of the portfolio (for
purposes of this provision, the term "total return" means the difference between
the cost of a security and the aggregate of its market value and dividends
received); or (b) in money market instruments under any one or more of the
following circumstances: (i) pending investment of proceeds of sale of the
Fund's shares or of portfolio securities; (ii) pending settlement of purchases
of portfolio securities; or (iii) to maintain liquidity for the purpose of
meeting anticipated redemptions. There are no minimum rating or quality
requirements with respect to convertible securities in which the Fund may invest
and, thus, all or some of such securities may be below investment grade.
 
    The term investment grade consists of debt instruments rated Baa or higher
by Moody's Investors Service, Inc. ("Moody's") or BBB or higher by Standard &
Poor's Corporation ("S&P") or, if not rated, determined to be of comparable
quality by the Investment Manager. Investments in securities rated either Baa by
Moody's or BBB by S&P have speculative characteristics and, therefore, changes
in economic conditions or other circumstances are more likely to weaken their
capacity to make principal and interest payments than would be the case with
investments in securities with higher credit ratings. If a debt instrument held
by the Fund is subsequently downgraded below investment grade by a rating
agency, the Fund will retain such security in its portfolio until the Investment
Manager determines that it is practicable to sell the security without undue
market or tax consequences to the Fund. In the event that such downgraded
securities constitute 5% or more of the Fund's net assets, the Investment
Manager will sell immediately sufficient securities to reduce the total to below
5%.
 
    Notwithstanding the Fund's investment objective of seeking reasonable
current income and long-term growth of income and capital, the Fund may, for
defensive purposes, without limitation, invest in: obligations of the United
States Government, its agencies or instrumentalities; cash and cash equivalents
in major currencies; repurchase agreements; zero coupon securities; money market
instruments; and commercial paper.
 
    The Fund may also invest in securities of foreign issuers in the form of
American Depository Receipts ("ADRs"), European Depository Receipts ("EDRs") or
other similar securities convertible into securities of foreign issuers. These
securities may not necessarily be denominated in the same currency as the
securities into which they may be converted. ADRs are receipts typically issued
by a United States bank or trust company evidencing ownership of the underlying
securities. EDRs are European receipts evidencing a similar arrangement.
Generally, ADRs, in registered form, are designed for use in the United States
securities markets and EDRs, in bearer form, are designed for use in European
securities markets.
 
RISK CONSIDERATIONS AND INVESTMENT PRACTICES
 
    FOREIGN SECURITIES.  Foreign securities investments may be affected by
changes in currency rates or exchange control regulations, changes in
governmental administration or economic or monetary policy (in the United States
and abroad) or changed circumstances in dealings between nations. Fluctuations
in the relative rates of
 
                                       8
<PAGE>
exchange between the currencies of different nations will affect the value of
the Fund's investments denominated in foreign currency. Changes in foreign
currency exchange rates relative to the U.S. dollar will affect the U.S. dollar
value of the Fund's assets denominated in that currency and thereby impact upon
the Fund's total return on such assets.
 
    Foreign currency exchange rates are determined by forces of supply and
demand on the foreign exchange markets. These forces are themselves affected by
the international balance of payments and other economic and financial
conditions, government intervention, speculation and other factors. Moreover,
foreign currency exchange rates may be affected by the regulatory control of the
exchanges on which the currencies trade. The foreign currency transactions of
the Fund will be conducted on a spot basis or through forward contracts
(described below). The Fund will incur certain costs in connection with these
currency transactions.
 
    Investments in foreign securities will also occasion risks relating to
political and economic developments abroad, including the possibility of
expropriations or confiscatory taxation, limitations on the use or transfer of
Fund assets and any effects of foreign social, economic or political
instability. Foreign companies are not subject to the regulatory requirements of
U.S. companies and, as such, there may be less publicly available information
about such companies. Moreover, foreign companies are not subject to uniform
accounting, auditing and financial reporting standards and requirements
comparable to those applicable to U.S. companies.
 
    Securities of foreign issuers may be less liquid than comparable securities
of U.S. issuers and, as such, their price changes may be more volatile.
Furthermore, foreign exchanges and broker-dealers are generally subject to less
government and exchange scrutiny and regulation than their American
counterparts. Brokerage commissions, dealer concessions and other transaction
costs may be higher on foreign markets than in the U.S. In addition, differences
in clearance and settlement procedures on foreign markets may occasion delays in
settlements of the Fund's trades effected in such markets. As such, the
inability to dispose of portfolio securities due to settlement delays could
result in losses to the Fund due to subsequent declines in value of such
securities and the inability of the Fund to make intended security purchases due
to settlement problems could result in a failure of the Fund to make potentially
advantageous investments. To the extent the Fund purchases Eurodollar
certificates of deposit issued by foreign branches of domestic United States
banks, consideration will be given to their domestic marketability, the lower
reserve requirements normally mandated for overseas banking operations, the
possible impact of interruptions in the flow of international currency
transactions and future international political and economic developments which
might adversely affect the payment of principal or interest.
 
    Certain of the foreign markets in which the Fund may invest will be emerging
markets. These new and incompletely formed markets will have increased risk
levels above those occasioned by investing in foreign markets generally. The
types of these risks are set forth above. The Fund's management will take
cognizance of these risks in allocating any of the Fund's investments in either
fixed-income or equity securities issued by issuers in emerging market
countries.
 
    LOWER RATED CONVERTIBLE SECURITIES.  A portion of the convertible securities
in which the Fund may invest will generally be below investment grade.
Securities below investment grade are the equivalent of high yield, high risk
bonds, commonly known as "junk bonds." Investment grade is generally considered
to be debt securities rated BBB or higher by S&P or Baa or higher by Moody's.
Convertible securities rated Baa by Moody's or BBB by S&P have speculative
characteristics greater than those of more highly rated convertible securities,
while con-
vertible securities rated Ba or BB or lower by Moody's and S&P, respectively,
are considered to be speculative investments. The Fund will not invest in
convertible securities that are rated lower than B
 
                                       9
<PAGE>
by S&P or Moody's or, if not rated, determined to be of comparable quality by
the Investment Manager. The Fund will not invest in convertible securities that
are in default in payment of principal or interest. The ratings of convertible
securities by Moody's and S&P are a generally accepted barometer of credit risk.
However, as the creditworthiness of issuers of lower-rated securities is more
problematical than that of issuers of higher-rated securities, the achievement
of the Fund's investment objective will be more dependent upon the Investment
Manager's own credit analysis than would be the case with a mutual fund
investing primarily in higher quality securities. The Investment Manager will
utilize a security's credit rating as simply one indication of an issuer's
creditworthiness and will principally rely upon its own analysis of any security
currently held by the Fund or potentially purchasable by the Fund for its
portfolio.
 
    Because of the special nature of the Fund's permitted investments in lower
rated convertible securities, the Investment Manager must take account of
certain special considerations in assessing the risks associated with such
investments. Historically, the prices of lower rated securities have been found
to be less sensitive to changes in prevailing interest rates than higher rated
investments, but are likely to be more sensitive to adverse economic changes or
individual corporate developments. During an economic downturn or substantial
period of rising interest rates, highly leveraged issuers may experience
financial stress which would adversely affect their ability to service their
principal and interest payment obligations, to meet their projected business
goals or to obtain additional financing. If the issuer of a convertible security
owned by the Fund defaults, the Fund may incur additional expenses to seek
recovery. In addition, periods of economic uncertainty and change can be
expected to result in an increased volatility of market prices of lower rated
securities and a corresponding volatility in the net asset value of a share of
the Fund.
 
    FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS. The Fund may enter into forward
foreign currency exchange contracts ("forward contracts") in connection with its
foreign securities investments.
 
    A forward contract involves an obligation to purchase or sell a currency at
a future date, which may be any fixed number of days from the date of the
contract agreed upon by the parties, at a price set at the time of the contract.
The Fund may enter into forward contracts as a hedge against fluctuations in
future foreign exchange rates.
 
    The Fund will enter into forward contracts under various circumstances. When
the Fund enters into a contract for the purchase or sale of a security
denominated in a foreign currency, it may, for example, desire to "lock in" the
price of the security in U.S. dollars or some other foreign currency which the
Fund is temporarily holding in its portfolio. By entering into a forward
contract for the purchase or sale, for a fixed amount of dollars or other
currency, of the amount of foreign currency involved in the underlying security
transactions, the Fund will be able to protect itself against a possible loss
resulting from an adverse change in the relationship between the U.S. dollar or
other currency which is being used for the security purchase (by the Fund or the
counterparty) and the foreign currency in which the security is denominated
during the period between the date on which the security is purchased or sold
and the date on which payment is made or received.
 
    At other times, when, for example, the Fund's Investment Manager believes
that the currency of a particular foreign country may suffer a substantial
decline against the U.S. dollar or some other foreign currency, the Fund may
enter into a forward contract to sell, for a fixed amount of dollars or other
currency, the amount of foreign currency approximating the value of some or all
of the Fund's securities holdings (or securities which the Fund has purchased
for its portfolio) denominated in such foreign currency. Under identical
circumstances, the Fund may enter into a forward contract to sell, for a fixed
amount of U.S. dollars or other currency, an amount of foreign currency other
than the currency
 
                                       10
<PAGE>
in which the securities to be hedged are denominated approximating the value of
some or all of the portfolio securities to be hedged. This method of hedging,
called "cross-hedging," will be selected by the Investment Manager when it is
determined that the foreign currency in which the portfolio securities are
denominated has insufficient liquidity or is trading at a discount as compared
with some other foreign currency with which it tends to move in tandem.
 
    In addition, when the Fund's Investment Manager anticipates purchasing
securities at some time in the future, and wishes to lock in the current
exchange rate of the currency in which those securities are denominated against
the U.S. dollar or some other foreign currency, the Fund may enter into a
forward contract to purchase an amount of currency equal to some or all of the
value of the anticipated purchase, for a fixed amount of U.S. dollars or other
currency. The Fund may, however, close out the forward contract without
purchasing the security which was the subject of the "anticipatory" hedge.
 
    In all of the above circumstances, if the currency in which the Fund
securities holdings (or anticipated portfolio securities) are denominated rises
in value with respect to the currency which is being purchased (or sold), then
the Fund will have realized fewer gains than had the Fund not entered into the
forward contracts. Moreover, the precise matching of the forward contract
amounts and the value of the securities involved will not generally be possible,
since the future value of such securities in foreign currencies will change as a
consequence of market movements in the value of those securities between the
date the forward contract is entered into and the date it matures. The Fund is
not required to enter into such transactions with regard to its foreign
currency-denominated securities and will not do so unless deemed appropriate by
the Investment Manager. The Fund generally will not enter into a forward
contract with a term of greater than one year, although it may enter into
forward contracts for periods of up to five years. The Fund may be limited in
its ability to enter into hedging transactions involving forward contracts by
the Internal Revenue Code (the "Code") requirements relating to qualifications
as a regulated investment company (see "Dividends, Distributions and Taxes").
 
    REPURCHASE AGREEMENTS.  The Fund may enter into repurchase agreements, which
may be viewed as a type of secured lending by the Fund, and which typically
involve the acquisition by the Fund of government securities or other securities
from a selling financial institution such as a bank, savings and loan
association or broker-dealer. The agreement provides that the Fund will sell
back to the institution, and that the institution will repurchase, the
underlying security at a specified price and at a fixed time in the future,
usually not more than seven days from the date of purchase. While repurchase
agreements involve certain risks not associated with direct investments in debt
securities, including the risks of default or bankruptcy of the selling
financial institution, the Fund follows procedures to minimize such risks. These
procedures include effecting repurchase transactions only with large,
well-capitalized and well-established financial institutions and maintaining
adequate collateralization.
 
    WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS.  From
time to time, in the ordinary course of business, the Fund may purchase
securities on a when-issued or delayed delivery basis or may purchase or sell
securities on a forward commitment basis. When such transactions are negotiated,
the price is fixed at the time of the commitment, but delivery and payment can
take place a month or more after the date of the commitment. There is no overall
limit on the percentage of the Fund's assets which may be committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis. An increase in the percentage of the Fund's assets committed to the
purchase of securities on a when-issued or delayed delivery basis may increase
the volatility of the Fund's net asset value.
 
                                       11
<PAGE>
    WHEN, AS AND IF ISSUED SECURITIES.  The Fund may purchase securities on a
"when, as and if issued" basis under which the issuance of the security depends
upon the occurrence of a subsequent event, such as approval of a merger,
corporate reorganization, leveraged buyout or debt restructuring. If the
anticipated event does not occur and the securities are not issued, the Fund
will have lost an investment opportunity. There is no overall limit on the
percentage of the Fund's assets which may be committed to the purchase of
securities on a "when, as and if issued" basis. An increase in the percentage of
the Fund's assets committed to the purchase of securities on a "when, as and if
issued" basis may increase the volatility of its net asset value.
 
    PRIVATE PLACEMENTS.  The Fund may invest up to 5% of its total assets in
securities which are subject to restrictions on resale because they have not
been registered under the Securities Act of 1933, as amended (the "Securities
Act"), or which are otherwise not readily marketable. (Securities eligible for
resale pursuant to Rule 144A under the Securities Act, and determined to be
liquid pursuant to the procedures discussed in the following paragraph, are not
subject to the foregoing restriction.) These securities are generally referred
to as private placements or restricted securities. Limitations on the resale of
such securities may have an adverse effect on their marketability, and may
prevent the Fund from disposing of them promptly at reasonable prices. The Fund
may have to bear the expense of registering such securities for resale and the
risk of substantial delays in effecting such registration.
 
    The Securities and Exchange Commission has adopted Rule 144A under the
Securities Act, which permits the Fund to sell restricted securities to
qualified institutional buyers without limitation. The Investment Manager,
pursuant to procedures adopted by the Trustees of the Fund, will make a
determination as to the liquidity of each restricted security purchased by the
Fund. If a restricted security is determined to be "liquid," such security will
not be included within the category "illiquid securities," which under current
policy may not exceed 15% of the Fund's net assets. Investing in Rule 144A
securities could have the effect of increasing the level of Fund illiquidity to
the extent the Fund, at a particular point in time, may be unable to find
qualified institutional buyers interested in purchasing such securities.
 
    INVESTMENT IN OTHER INVESTMENT VEHICLES. Under the Investment Company Act of
1940, as amended (the "1940 Act"), the Fund generally may invest up to 10% of
its total assets in the aggregate in shares of other investment companies and up
to 5% of its total assets in any one investment company. The Fund may not own
more than 3% of the outstanding voting stock of any investment company. In
addition, the Fund may invest in real estate investment trusts, which pool
investors' funds for investments primarily in commercial real estate properties.
Investment in other investment companies may be the sole or most practical means
by which the Fund may participate in certain securities markets, and investment
in real estate investment trusts may be the most practical available means for
the Fund to invest in the real estate industry (the Fund is prohibited from
investing in real estate directly). As a shareholder in an investment company or
real estate investment trust, the Fund would bear its ratable share of that
entity's expenses, including its advisory and administration fees. At the same
time the Fund would continue to pay its own investment management fees and other
expenses, as a result of which the Fund and its shareholders in effect will be
absorbing duplicate levels of fees with respect to investments in other
investment companies and in real estate investment trusts.
 
    ZERO COUPON SECURITIES.  A portion of the fixed-income securities purchased
by the Fund may be zero coupon securities. Such securities are purchased at a
discount from their face amount, giving the purchaser the right to receive their
full value at maturity. The interest earned on such securities is, implicitly,
automatically compounded and paid out at maturity. While such compounding at a
constant rate eliminates the risk of receiving lower yields
 
                                       12
<PAGE>
upon reinvestment of interest if prevailing interest rates decline, the owner of
a zero coupon security will be unable to participate in higher yields upon
reinvestment of interest received on interest-paying securities if prevailing
interest rates rise.
 
    A zero coupon security pays no interest to its holder during its life.
Therefore, to the extent the Fund invests in zero coupon securities, it will not
receive current cash available for distribution to shareholders. In addition,
zero coupon securities are subject to substantially greater price fluctuations
during periods of changing prevailing interest rates than are comparable
securities which pay interest on a current basis. Current federal tax law
requires that a holder (such as the Fund) of a zero coupon security accrue a
portion of the discount at which the security was purchased as income each year
even though the Fund receives no interest payments in cash on the security
during the year.
 
OPTIONS AND FUTURES TRANSACTIONS
 
    The Fund may purchase and sell (write) call and put options on portfolio
securities which are denominated in either U.S. dollars or foreign currencies
and on the U.S. dollar and foreign currencies, which are or may in the future be
listed on several U.S. and foreign securities exchanges or are written in
over-the-counter transactions ("OTC options"). OTC options are purchased from or
sold (written) to dealers or financial institutions which have entered into
direct agreements with the Fund.
 
    The Fund is permitted to write covered call options on portfolio securities
and the U.S. dollar and foreign currencies, without limit, in order to hedge
against the decline in the value of a security or currency in which such
security is denominated (although such hedge is limited to the value of the
premium received), to close out long call option positions and to generate
income. The Fund may write covered put options, under which the Fund incurs an
obligation to buy the security (or currency) underlying the option from the
purchaser of the put at the option's exercise price at any time during the
option period, at the purchaser's election.
 
    The Fund may purchase listed and OTC call and put options in amounts
equalling up to 5% of its total assets. The Fund may purchase call options to
close out a covered call position or to protect against an increase in the price
of a security it anticipates purchasing or, in the case of call options on a
foreign currency, to hedge against an adverse exchange rate change of the
currency in which the security it anticipates purchasing is denominated
vis-a-vis the currency in which the exercise price is denominated. The Fund may
purchase put options on securities which it holds in its portfolio only to
protect itself against a decline in the value of the security. The Fund may also
purchase put options to close out written put positions in a manner similar to
call option closing purchase transactions. There are no other limits on the
Fund's ability to purchase call and put options.
 
    The Fund may purchase and sell futures contracts that are currently traded,
or may in the future be traded, on U.S. and foreign commodity exchanges on
underlying portfolio securities, on any currency ("currency" futures), on U.S.
and foreign fixed-income securities ("interest rate" futures) and on such
indexes of U.S. or foreign equity or fixed-income securities as may exist or
come into being ("index" futures). The Fund may purchase or sell interest rate
futures contracts for the purpose of hedging some or all of the value of its
portfolio securities (or anticipated portfolio securities) against changes in
prevailing interest rates. The Fund may purchase or sell index futures contracts
for the purpose of hedging some or all of its portfolio (or anticipated
portfolio) securities against changes in their prices (or the currency in which
they are denominated.) As a futures contract purchaser, the Fund incurs an
obligation to take delivery of a specified amount of the obligation underlying
the contract at a specified time in the future for a specified price. As a
seller of a futures contract, the Fund incurs an obligation to deliver the
specified amount of the underlying obligation at a specified time in return for
an agreed upon price.
 
                                       13
<PAGE>
    The Fund also may purchase and write call and put options on futures
contracts which are traded on an exchange and enter into closing transactions
with respect to such options to terminate an existing position.
 
    New futures contracts, options and other financial products and various
combinations thereof continue to be developed. The Fund may invest in any such
futures, options or products as may be developed, to the extent consistent with
its investment objective and applicable regulatory requirements.
 
    RISKS OF OPTIONS AND FUTURES TRANSACTIONS. The Fund may close out its
position as writer of an option, or as a buyer or seller of a futures contract,
only if a liquid secondary market exists for options or futures contracts of
that series. There is no assurance that such a market will exist, particularly
in the case of OTC options, as such options may generally only be closed out by
entering into a closing purchase transaction with the purchasing dealer. Also,
exchanges may limit the amount by which the price of many futures contracts may
move on any day. If the price moves equal the daily limit on successive days,
then it may prove impossible to liquidate a futures position until the daily
limit moves have ceased.
 
    Futures contracts and options transactions may be considered speculative in
nature and may involve greater risks than those customarily assumed by other
investment companies which do not invest in such instruments. One such risk is
that the Investment Manager could be incorrect in its expectations as to the
direction or extent of various interest rate or price movements or the time span
within which the movements take place. For example, if the Fund sold futures
contracts for the sale of securities in anticipation of an increase in interest
rates, and then interest rates went down instead, causing bond prices to rise,
the Fund would lose money on the sale. Another risk which will arise in
employing futures contracts to protect against the price volatility of portfolio
securities is that the prices of securities, currencies and indexes subject to
futures contracts (and thereby the futures contract prices) may correlate
imperfectly with the behavior of the U.S. dollar cash prices of the Fund's
portfolio securities and their denominated currencies. See the Statement of
Additional Information for a further discussion of risks.
 
PORTFOLIO MANAGEMENT
 
    The Fund's portfolio is actively managed by its Investment Manager with a
view to achieving the Fund's investment objective. In determining which
securities to purchase for the Fund or hold in the Fund's portfolio, the
Investment Manager will rely on information from various sources, including
research, analysis and appraisals of brokers and dealers, including Dean Witter
Reynolds Inc. ("DWR"), and other broker-dealer affiliates of the Investment
Manager, and others regarding economic developments and interest rate trends,
and the Investment Manager's own analysis of factors it deems relevant.
 
    The Fund is managed within InterCapital's Growth and Income Group, which
manages 22 equity funds and fund portfolios, with approximately $27.4 billion in
assets at June 30, 1997. Paul D. Vance, Senior Vice President of InterCapital
and a member of InterCapital's Growth and Income Group, has been the primary
portfolio manager of the Fund since its inception. Mr. Vance has been managing
portfolios comprised of equity securities at InterCapital for over five years.
 
    Although the Fund does not engage in substantial short-term trading as a
means of achieving its investment objective, it may sell portfolio securities
without regard to the length of time they have been held, in accordance with the
investment policies described earlier. Orders for transactions in portfolio
securities are placed for the Fund with a number of brokers and dealers,
including DWR and other brokers and dealers that are affiliates of the
Investment Manager. The Fund may incur brokerage commissions on transactions
conducted through such affiliates. Pursuant to an order of the Securities and
Exchange Commission, the Fund may effect principal transactions in certain money
market instruments with DWR.
 
                                       14
<PAGE>
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    The investment restrictions listed below are among the restrictions which
have been adopted by the Fund as fundamental policies. Under the 1940 Act, a
fundamental policy may not be changed without the vote of a majority of the
outstanding voting securities of the Fund, as defined in the 1940 Act. For
purposes of the following limitations: (i) all percentage limitations apply
immediately after a purchase or initial investment, and (ii) any subsequent
change in any applicable percentage resulting from market fluctuations or other
changes in total or net assets does not require elimination of any security from
the portfolio.
 
    The Fund may not:
 
   1. As to 75% of its total assets, invest more than 5% of the value of its
total assets in the securities of any one issuer (other than obligations issued
or guaranteed by the United States Government, its agencies or
instrumentalities).
 
   2. Invest 25% or more of the value of its total assets in securities of
issuers in any one industry. This restriction does not apply to obligations
issued or guaranteed by the United States Government or its agencies or
instrumentalities.
 
   3. Invest more than 5% of the value of its total assets in securities of
issuers having a record, together with predecessors, of less than three years of
continuous operation. This restriction shall not apply to any obligation issued
or guaranteed by the United States Government, its agencies or
instrumentalities.
 
   4. As to 75% of its total assets, purchase more than 10% of the voting
securities, or more than 10% of any class of securities, of any issuer.
 
    Notwithstanding any other investment policy or restriction, the Fund may
seek to achieve its investment objective by investing all or substantially all
of its assets in another investment company having substantially the same
investment objective and policies as the Fund.
 
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
    The Fund offers each Class of its shares for sale to the public on a
continuous basis. Pursuant to a Distribution Agreement between the Fund and Dean
Witter Distributors Inc. (the "Distributor"), an affiliate of the Investment
Manager, shares of the Fund are distributed by the Distributor and offered by
DWR and other dealers which have entered into agreements with the Distributor
("Selected Broker-Dealers"). The principal executive office of the Distributor
is located at Two World Trade Center, New York, New York 10048.
 
    The Fund offers four classes of shares (each, a "Class"). Class A shares are
sold to investors with an initial sales charge that declines to zero for larger
purchases; however, Class A shares sold without an initial sales charge are
subject to a contingent deferred sales charge ("CDSC") of 1.0% if redeemed
within one year of purchase, except for certain specific circumstances. Class B
shares are sold without an initial sales charge but are subject to a CDSC
(scaled down from 5.0% to 1.0%) payable upon most redemptions within six years
after purchase. (Class B shares purchased by certain qualified
employer-sponsored benefit plans are subject to a CDSC scaled down from 2.0% to
1.0% if redeemed within three years after purchase.) Class C shares are sold
without an initial sales charge but are subject to a CDSC of 1.0% on most
redemptions made within one year after purchase. Class D shares are sold without
an initial sales charge or CDSC and are available only to investors meeting an
initial investment minimum of $5 million, and to certain other limited
categories of investors. At the discretion of the Board of Trustees of the Fund,
Class A shares may be sold to categories of investors in addition to those set
forth in this prospectus at net asset value
 
                                       15
<PAGE>
without a front-end sales charge, and Class D shares may be sold to certain
other categories of investors, in each case as may be described in the then
current prospectus of the Fund. See "Alternative Purchase
Arrangements--Selecting a Particular Class" for a discussion of factors to
consider in selecting which Class of shares to purchase.
 
    The minimum initial purchase is $1,000 for each Class of shares, although
Class D shares are only available to persons investing $5 million or more and to
certain other limited categories of investors. For the purpose of meeting the
minimum $5 million initial investment for Class D shares, and subject to the
$1,000 minimum initial investment for each Class of the Fund, an investor's
existing holdings of Class A shares of the Fund and other Dean Witter Funds that
are multiple class funds ("Dean Witter Multi-Class Funds") and shares of Dean
Witter Funds sold with a front-end sales charge ("FSC Funds") and concurrent
investments in Class D shares of the Fund and other Dean Witter Multi-Class
Funds will be aggregated. Subsequent purchases of $100 or more may be made by
sending a check, payable to Dean Witter Global Dividend Growth Securities,
directly to Dean Witter Trust Company (the "Transfer Agent") at P.O. Box 1040,
Jersey City, NJ 07303 or by contacting an account executive of DWR or other
Selected Broker-Dealer. When purchasing shares of the Fund, investors must
specify whether the purchase is for Class A, Class B, Class C or Class D shares.
If no Class is specified, the Transfer Agent will not process the transaction
until the proper Class is identified. The minimum initial purchase in the case
of investments through EasyInvest-SM-, an automatic purchase plan (see
"Shareholder Services"), is $100, provided that the schedule of automatic
investments will result in investments totalling $1,000 within the first twelve
months. In the case of investments pursuant to Systematic Payroll Deduction
Plans (including Individual Retirement Plans), the Fund, in its discretion, may
accept investments without regard to any minimum amounts which would otherwise
be required, if the Fund has reason to believe that additional investments will
increase the investment in all accounts under such Plans to at least $1,000.
Certificates for shares purchased will not be issued unless requested by the
shareholder in writing to the Transfer Agent.
 
    Shares of the Fund are sold through the Distributor on a normal three
business day settlement basis; that is, payment is due on the third business day
(settlement date) after the order is placed with the Distributor. Since DWR and
other Selected Broker-Dealers forward investors' funds on settlement date, they
will benefit from the temporary use of the funds if payment is made prior
thereto. As noted above, orders placed directly with the Transfer Agent must be
accompanied by payment. Investors will be entitled to receive income dividends
and capital gains distributions if their order is received by the close of
business on the day prior to the record date for such dividends and
distributions. While no sales charge is imposed at the time shares are
purchased, a contingent deferred sales charge may be imposed at the time of
redemption (see "Redemptions and Repurchases"). Sales personnel of a Selected
Broker-Dealer are compensated for selling shares of the Fund at the time of
their sale by the Distributor or any of its affiliates and/or the Selected
Broker-Dealer. In addition, some sales personnel of the Selected Broker-Dealer
will receive non-cash compensation in the form of trips to educational and/or
business seminars and merchandise as special sales incentives. The Fund and the
Distributor reserve the right to reject any purchase orders.
 
ALTERNATIVE PURCHASE ARRANGEMENTS
 
    The Fund offers several Classes of shares to investors designed to provide
them with the flexibility of selecting an investment best suited to their needs.
The general public is offered three Classes of shares: Class A shares, Class B
shares and Class C shares, which differ principally in terms of sales charges
and rate of expenses to which they are subject. A fourth Class of shares, Class
D shares, is offered only to limited categories of investors (see "No Load
Alternative--Class D Shares" below).
 
                                       16
<PAGE>
    Each Class A, Class B, Class C or Class D share of the Fund represents an
identical interest in the investment portfolio of the Fund except that Class A,
Class B and Class C shares bear the expenses of the ongoing shareholder service
fees, Class B and Class C shares bear the expenses of the ongoing distribution
fees and Class A, Class B and Class C shares which are redeemed subject to a
CDSC bear the expense of the additional incremental distribution costs resulting
from the CDSC applicable to shares of those Classes. The ongoing distribution
fees that are imposed on Class A, Class B and Class C shares will be imposed
directly against those Classes and not against all assets of the Fund and,
accordingly, such charges against one Class will not affect the net asset value
of any other Class or have any impact on investors choosing another sales charge
option. See "Plan of Distribution" and "Redemptions and Repurchases."
 
    Set forth below is a summary of the differences between the Classes and the
factors an investor should consider when selecting a particular Class. This
summary is qualified in its entirety by detailed discussion of each Class that
follows this summary.
 
    CLASS A SHARES.  Class A shares are sold at net asset value plus an initial
sales charge of up to 5.25%. The initial sales charge is reduced for certain
purchases. Investments of $1 million or more (and investments by certain other
limited categories of investors) are not subject to any sales charges at the
time of purchase but are subject to a CDSC of 1.0% on redemptions made within
one year after purchase, except for certain specific circumstances. Class A
shares are also subject to a 12b-1 fee of up to 0.25% of the average daily net
assets of the Class. See "Initial Sales Charge Alternative--Class A Shares."
 
    CLASS B SHARES.  Class B shares are offered at net asset value with no
initial sales charge but are subject to a CDSC (scaled down from 5.0% to 1.0%)
if redeemed within six years of purchase. (Class B shares purchased by certain
qualified employer-sponsored benefit plans are subject to a CDSC scaled down
from 2.0% to 1.0% if redeemed within three years after purchase.) This CDSC may
be waived for certain redemptions. Class B shares are also subject to an annual
12b-1 fee of 1.0% of the lesser of: (a) the average daily aggregate gross sales
of the Fund's Class B shares since the inception of the Fund (not including
reinvestments of dividends or capital gains distributions), less the average
daily aggregate net asset value of the Fund's Class B shares redeemed since the
Fund's inception upon which a CDSC has been imposed or waived, or (b) the
average daily net assets of Class B. The Class B shares' distribution fee will
cause that Class to have higher expenses and pay lower dividends than Class A or
Class D shares.
 
    After approximately ten (10) years, Class B shares will convert
automatically to Class A shares of the Fund, based on the relative net asset
values of the shares of the two Classes on the conversion date. In addition, a
certain portion of Class B shares that have been acquired through the
reinvestment of dividends and distributions will be converted at that time. See
"Contingent Deferred Sales Charge Alternative--Class B Shares."
 
    CLASS C SHARES.  Class C shares are sold at net asset value with no initial
sales charge but are subject to a CDSC of 1.0% on redemptions made within one
year after purchase. This CDSC may be waived for certain redemptions. They are
subject to an annual 12b-1 fee of up to 1.0% of the average daily net assets of
the Class C shares. The Class C shares' distribution fee may cause that Class to
have higher expenses and pay lower dividends than Class A or Class D shares. See
"Level Load Alternative--Class C Shares."
    CLASS D SHARES.  Class D shares are available only to limited categories of
investors (see "No Load Alternative--Class D Shares" below). Class D shares are
sold at net asset value with no initial sales charge or CDSC. They are not
subject to any 12b-1 fees. See "No Load Alternative--Class D Shares."
    SELECTING A PARTICULAR CLASS.  In deciding which Class of Fund shares to
purchase, investors
 
                                       17
<PAGE>
should consider the following factors, as well as any other relevant facts and
circumstances:
    The decision as to which Class of shares is more beneficial to an investor
depends on the amount and intended length of his or her investment. Investors
who prefer an initial sales charge alternative may elect to purchase Class A
shares. Investors qualifying for significantly reduced or, in the case of
purchases of $1 million or more, no initial sales charges may find Class A
shares particularly attractive because similar sales charge reductions are not
available with respect to Class B or Class C shares. Moreover, Class A shares
are subject to lower ongoing expenses than are Class B or Class C shares over
the term of the investment. As an alternative, Class B and Class C shares are
sold without any initial sales charge so the entire purchase price is
immediately invested in the Fund. Any investment return on these additional
investment amounts may partially or wholly offset the higher annual expenses of
these Classes. Because the Fund's future return cannot be predicted, however,
there can be no assurance that this would be the case.
 
    Finally, investors should consider the effect of the CDSC period and any
conversion rights of the Classes in the context of their own investment time
frame. For example, although Class C shares are subject to a significantly lower
CDSC upon redemptions, they do not, unlike Class B shares, convert into Class A
shares after approximately ten years, and, therefore, are subject to an ongoing
12b-1 fee of 1.0% (rather than the 0.25% fee applicable to Class A shares) for
an indefinite period of time. Thus, Class B shares may be more attractive than
Class C shares to investors with longer term investment outlooks. Other
investors, however, may elect to purchase Class C shares if, for example, they
determine that they do not wish to be subject to a front-end sales charge and
they are uncertain as to the length of time they intend to hold their shares.
 
    For the purpose of meeting the $5 million minimum investment amount for
Class D shares, holdings of Class A shares in all Dean Witter Multi-Class Funds,
shares of FSC Funds and shares of Dean Witter Funds for which such shares have
been exchanged will be included together with the current investment amount.
 
    Sales personnel may receive different compensation for selling each Class of
shares. Investors should understand that the purpose of a CDSC is the same as
that of the initial sales charge in that the sales charges applicable to each
Class provide for the financing of the distribution of shares of that Class.
 
    Set forth below is a chart comparing the sales charge, 12b-1 fees and
conversion options applicable to each Class of shares:
 
<TABLE>
<CAPTION>
<C>        <S>              <C>         <C>
                                         CONVERSION
  CLASS     SALES CHARGE    12B-1 FEE      FEATURE
    A      Maximum 5.25%        0.25%        No
           initial sales
           charge reduced
           for purchases
           of $25,000 and
           over; shares
           sold without an
           initial sales
           charge
           generally
           subject to a
           1.0% CDSC
           during first
           year.
    B      Maximum 5.0%         1.0%    B shares
           CDSC during the              convert to A
           first year                   shares
           decreasing to 0              automatically
           after six years              after
                                        approximately
                                        ten years
    C      1.0% CDSC            1.0%         No
           during first
           year
    D           None           None          No
</TABLE>
 
    See "Purchase of Fund Shares" and "The Fund and its Management" for a
complete description of the sales charges and service and distribution fees for
each Class of shares and "Determination of Net Asset Value," "Dividends,
Distributions and Taxes" and "Shareholder Services--Exchange Privilege" for
other differences between the Classes of shares.
 
                                       18
<PAGE>
INITIAL SALES CHARGE ALTERNATIVE--CLASS A SHARES
 
    Class A shares are sold at net asset value plus an initial sales charge. In
some cases, reduced sales charges may be available, as described below.
Investments of $1 million or more (and investments by certain other limited
categories of investors) are not subject to any sales charges at the time of
purchase but are subject to a CDSC of 1.0% on redemptions made within one year
after purchase (calculated from the last day of the month in which the shares
were purchased), except for certain specific circumstances. The CDSC will be
assessed on an amount equal to the lesser of the current market value or the
cost of the shares being redeemed. The CDSC will not be imposed (i) in the
circumstances set forth below in the section "Contingent Deferred Sales Charge
Alternative--Class B Shares--CDSC Waivers," except that the references to six
years in the first paragraph of that section shall mean one year in the case of
Class A shares, and (ii) in the circumstances identified in the section
"Additional Net Asset Value Purchase Options" below. Class A shares are also
subject to an annual 12b-1 fee of up to 0.25% of the average daily net assets of
the Class.
 
    The offering price of Class A shares will be the net asset value per share
next determined following receipt of an order (see "Determination of Net Asset
Value" below), plus a sales charge (expressed as a percentage of the offering
price) on a single transaction as shown in the following table:
 
<TABLE>
<CAPTION>
                                          SALES CHARGE
                           ------------------------------------------
                              PERCENTAGE OF          APPROXIMATE
    AMOUNT OF SINGLE         PUBLIC OFFERING    PERCENTAGE OF AMOUNT
       TRANSACTION                PRICE               INVESTED
- -------------------------  -------------------  ---------------------
<S>                        <C>                  <C>
Less than $25,000........           5.25%                 5.54%
$25,000 but less
     than $50,000........           4.75%                 4.99%
$50,000 but less
     than $100,000.......           4.00%                 4.17%
$100,000 but less
     than $250,000.......           3.00%                 3.09%
$250,000 but less
     than $1 million.....           2.00%                 2.04%
$1 million and over......              0                     0
</TABLE>
 
    Upon notice to all Selected Broker-Dealers, the Distributor may reallow up
to the full applicable sales charge as shown in the above schedule during
periods specified in such notice. During periods when 90% or more of the sales
charge is reallowed, such Selected Broker-Dealers may be deemed to be
underwriters as that term is defined in the Securities Act of 1933.
 
    The above schedule of sales charges is applicable to purchases in a single
transaction by, among others: (a) an individual; (b) an individual, his or her
spouse and their children under the age of 21 purchasing shares for his, her or
their own accounts; (c) a trustee or other fiduciary purchasing shares for a
single trust estate or a single fiduciary account; (d) a pension, profit-sharing
or other employee benefit plan qualified or non-qualified under Section 401 of
the Internal Revenue Code; (e) tax-exempt organizations enumerated in Section
501(c)(3) or (13) of the Internal Revenue Code; (f) employee benefit plans
qualified under Section 401 of the Internal Revenue Code of a single employer or
of employers who are "affiliated persons" of each other within the meaning of
Section 2(a)(3)(c) of the Act; and for investments in Individual Retirement
Accounts of employees of a single employer through Systematic Payroll Deduction
plans; or (g) any other organized group of persons, whether incorporated or not,
provided the organization has been in existence for at least six months and has
some purpose other than the purchase of redeemable securities of a registered
investment company at a discount.
 
    COMBINED PURCHASE PRIVILEGE.  Investors may have the benefit of reduced
sales charges in accordance with the above schedule by combining purchases of
Class A shares of the Fund in single transactions with the purchase of Class A
shares of other Dean Witter Multi-Class Funds and shares of FSC Funds. The sales
charge payable on the purchase of the Class A shares of the Fund, the Class A
shares of the other Dean Witter Multi-Class Funds and the shares of the FSC
Funds will be at their
 
                                       19
<PAGE>
respective rates applicable to the total amount of the combined concurrent
purchases of such shares.
 
    RIGHT OF ACCUMULATION.  The above persons and entities may benefit from a
reduction of the sales charges in accordance with the above schedule if the
cumulative net asset value of Class A shares purchased in a single transaction,
together with shares of the Fund and other Dean Witter Funds previously
purchased at a price including a front-end sales charge (including shares of the
Fund and other Dean Witter Funds acquired in exchange for those shares, and
including in each case shares acquired through reinvestment of dividends and
distributions), which are held at the time of such transaction, amounts to
$25,000 or more. If such investor has a cumulative net asset value of shares of
FSC Funds and Class A and Class D shares equal to at least $5 million, such
investor is eligible to purchase Class D shares subject to the $1,000 minimum
initial investment requirement of that Class of the Fund. See "No Load
Alternative-- Class D Shares" below.
 
    The Distributor must be notified by DWR or a Selected Broker-Dealer or the
shareholder at the time a purchase order is placed that the purchase qualifies
for the reduced charge under the Right of Accumulation. Similar notification
must be made in writing by the dealer or shareholder when such an order is
placed by mail. The reduced sales charge will not be granted if: (a) such
notification is not furnished at the time of the order; or (b) a review of the
records of the Selected Broker-Dealer or the Transfer Agent fails to confirm the
investor's represented holdings.
 
    LETTER OF INTENT.  The foregoing schedule of reduced sales charges will also
be available to investors who enter into a written Letter of Intent providing
for the purchase, within a thirteen-month period, of Class A shares of the Fund
from DWR or other Selected Broker-Dealers. The cost of Class A shares of the
Fund or shares of other Dean Witter Funds which were previously purchased at a
price including a front-end sales charge during the 90-day period prior to the
date of receipt by the Distributor of the Letter of Intent, or of Class A shares
of the Fund or shares of other Dean Witter Funds acquired in exchange for shares
of such funds purchased during such period at a price including a front-end
sales charge, which are still owned by the shareholder, may also be included in
determining the applicable reduction.
 
    ADDITIONAL NET ASSET VALUE PURCHASE OPTIONS. In addition to investments of
$1 million or more, Class A shares also may be purchased at net asset value by
the following:
 
   (1) trusts for which Dean Witter Trust Company ("DWTC") or Dean Witter Trust
FSB ("DWTFSB") (each of which is an affiliate of the Investment Manager)
provides discretionary trustee services;
 
   (2) persons participating in a fee-based program approved by the Distributor,
pursuant to which such persons pay an asset based fee for services in the nature
of investment advisory or administrative services (such investments are subject
to all of the terms and conditions of such programs, which may include
termination fees and restrictions on transferability of Fund shares);
 
   (3) retirement plans qualified under Section 401(k) of the Internal Revenue
Code ("401(k) plans") and other employer-sponsored plans qualified under Section
401(a) of the Internal Revenue Code with at least 200 eligible employees and for
which DWTC or DWTFSB serves as Trustee or the 401(k) Support Services Group of
DWR serves as recordkeeper;
 
   (4) 401(k) plans and other employer-sponsored plans qualified under Section
401(a) of the Internal Revenue Code for which DWTC or DWTFSB serves as Trustee
or the 401(k) Support Services Group of DWR serves as recordkeeper whose Class B
shares have converted to Class A shares, regardless of the plan's asset size or
number of eligible employees;
 
   (5) investors who are clients of a Dean Witter account executive who joined
Dean Witter from another investment firm within six months prior to
 
                                       20
<PAGE>
the date of purchase of Fund shares by such investors, if the shares are being
purchased with the proceeds from a redemption of shares of an open-end
proprietary mutual fund of the account executive's previous firm which imposed
either a front-end or deferred sales charge, provided such purchase was made
within sixty days after the redemption and the proceeds of the redemption had
been maintained in the interim in cash or a money market fund; and
 
   (6) other categories of investors, at the discretion of the Board, as
disclosed in the then current prospectus of the Fund.
 
    No CDSC will be imposed on redemptions of shares purchased pursuant to
paragraphs (1), (2) or (5), above.
 
    For further information concerning purchases of the Fund's shares, contact
DWR or another Selected Broker-Dealer or consult the Statement of Additional
Information.
 
CONTINGENT DEFERRED SALES CHARGE ALTERNATIVE-- CLASS B SHARES
 
    Class B shares are sold at net asset value next determined without an
initial sales charge so that the full amount of an investor's purchase payment
may be immediately invested in the Fund. A CDSC, however, will be imposed on
most Class B shares redeemed within six years after purchase. The CDSC will be
imposed on any redemption of shares if after such redemption the aggregate
current value of a Class B account with the Fund falls below the aggregate
amount of the investor's purchase payments for Class B shares made during the
six years (or, in the case of shares held by certain employer-sponsored benefit
plans, three years) preceding the redemption. In addition, Class B shares are
subject to an annual 12b-1 fee of 1.0% of the lesser of: (a) the average daily
aggregate gross sales of the Fund's Class B shares since the inception of the
Fund (not including reinvestments of dividends or capital gains distributions),
less the average daily aggregate net asset value of the Fund's Class B shares
redeemed since the Fund's inception upon which a CDSC has been imposed or
waived, or (b) the average daily net assets of Class B.
 
    Except as noted below, Class B shares of the Fund which are held for six
years or more after purchase (calculated from the last day of the month in which
the shares were purchased) will not be subject to any CDSC upon redemption.
Shares redeemed earlier than six years after purchase may, however, be subject
to a CDSC which will be a percentage of the dollar amount of shares redeemed and
will be assessed on an amount equal to the lesser of the current market value or
the cost of the shares being redeemed. The size of this percentage will depend
upon how long the shares have been held, as set forth in the following table:
 
<TABLE>
<CAPTION>
           YEAR SINCE                     CDSC AS A
            PURCHASE                    PERCENTAGE OF
          PAYMENT MADE                 AMOUNT REDEEMED
- ---------------------------------  -----------------------
<S>                                <C>
First............................              5.0%
Second...........................              4.0%
Third............................              3.0%
Fourth...........................              2.0%
Fifth............................              2.0%
Sixth............................              1.0%
Seventh and thereafter...........              None
</TABLE>
 
    In the case of Class B shares of the Fund held by 401 (k) plans or other
employer-sponsored plans qualified under Section 401(a) of the Internal Revenue
Code for which DWTC or DWTFSB serves as Trustee or the 401(k) Support Services
Group of DWR serves as recordkeeper and whose accounts are opened on or after
July 28, 1997, shares held for three years or more after purchase (calculated as
described in the paragraph above) will not be subject to any CDSC upon
redemption. However, shares redeemed earlier than three years after purchase may
be subject to a CDSC (calculated as described in the paragraph above), the
percentage
 
                                       21
<PAGE>
of which will depend on how long the shares have been held, as set forth in the
following table:
 
<TABLE>
<CAPTION>
           YEAR SINCE
            PURCHASE               CDSC AS A PERCENTAGE OF
          PAYMENT MADE                 AMOUNT REDEEMED
- ---------------------------------  -----------------------
<S>                                <C>
First............................              2.0%
Second...........................              2.0%
Third............................              1.0%
Fourth and thereafter............              None
</TABLE>
 
    CDSC WAIVERS.  A CDSC will not be imposed on: (i) any amount which
represents an increase in value of shares purchased within the six years (or, in
the case of shares held by certain employer-sponsored benefit plans, three
years) preceding the redemption; (ii) the current net asset value of shares
purchased more than six years (or, in the case of shares held by certain
employer-sponsored benefit plans, three years) prior to the redemption; and
(iii) the current net asset value of shares purchased through reinvestment of
dividends or distributions and/or shares acquired in exchange for shares of FSC
Funds or of other Dean Witter Funds acquired in exchange for such shares.
Moreover, in determining whether a CDSC is applicable it will be assumed that
amounts described in (i), (ii) and (iii) above (in that order) are redeemed
first.
 
    In addition, the CDSC, if otherwise applicable, will be waived in the case
of:
 
   (1) redemptions of shares held at the time a shareholder dies or becomes
disabled, only if the shares are:  (A) registered either in the name of an
individual shareholder (not a trust), or in the names of such shareholder and
his or her spouse as joint tenants with right of survivorship; or  (B) held in a
qualified corporate or self-employed retirement plan, Individual Retirement
Account ("IRA") or Custodial Account under Section 403(b)(7) of the Internal
Revenue Code ("403(b) Custodial Account"), provided in either case that the
redemption is requested within one year of the death or initial determination of
disability;
 
   (2) redemptions in connection with the following retirement plan
distributions:  (A) lump-sum or other distributions from a qualified corporate
or self-employed retirement plan following retirement (or, in the case of a "key
employee" of a "top heavy" plan, following attainment of age 59 1/2); (B)
distributions from an IRA or 403(b) Custodial
Account following attainment of age 59 1/2; or  (C) a tax-free return of an
excess contribution to an IRA; and
 
   (3) all redemptions of shares held for the benefit of a participant in a
401(k) plan or other employer-sponsored plan qualified under Section 401(a) of
the Internal Revenue Code which offers investment companies managed by the
Investment Manager or its subsidiary, Dean Witter Services Company Inc., as
self-directed investment alternatives and for which DWTC or DWTFSB serves as
Trustee or the 401(k) Support Services Group of DWR serves as recordkeeper
("Eligible Plan"), provided that either:  (A) the plan continues to be an
Eligible Plan after the redemption; or  (B) the redemption is in connection with
the complete termination of the plan involving the distribution of all plan
assets to participants.
 
    With reference to (1) above, for the purpose of determining disability, the
Distributor utilizes the definition of disability contained in Section 72(m)(7)
of the Internal Revenue Code, which relates to the inability to engage in
gainful employment. With reference to (2) above, the term "distribution" does
not encompass a direct transfer of IRA, 403(b) Custodial Account or retirement
plan assets to a successor custodian or trustee. All waivers will be granted
only following receipt by the Distributor of confirmation of the shareholder's
entitlement.
 
    CONVERSION TO CLASS A SHARES.  All shares of the Fund held prior to July 28,
1997 have been designated Class B shares. Shares held before May 1, 1997 will
convert to Class A shares in May, 2007. In all other instances Class B shares
will convert automatically to Class A shares, based on the relative net asset
values of the shares of the two Classes on the conversion date, which will be
approximately ten (10) years after the date of the
 
                                       22
<PAGE>
original purchase. The ten year period is calculated from the last day of the
month in which the shares were purchased or, in the case of Class B shares
acquired through an exchange or a series of exchanges, from the last day of the
month in which the original Class B shares were purchased, provided that shares
originally purchased before May 1, 1997 will convert to Class A shares in May,
2007. The conversion of shares purchased on or after May 1, 1997 will take place
in the month following the tenth anniversary of the purchase. There will also be
converted at that time such proportion of Class B shares acquired through
automatic reinvestment of dividends and distributions owned by the shareholder
as the total number of his or her Class B shares converting at the time bears to
the total number of outstanding Class B shares purchased and owned by the
shareholder. In the case of Class B shares held by a 401(k) plan or other
employer-sponsored plan qualified under Section 401(a) of the Internal Revenue
Code and for which DWTC or DWTFSB serves as Trustee or the 401(k) Support
Services Group of DWR serves as recordkeeper, the plan is treated as a single
investor and all Class B shares will convert to Class A shares on the conversion
date of the first shares of a Dean Witter Multi-Class Fund purchased by that
plan. In the case of Class B shares previously exchanged for shares of an
"Exchange Fund" (see "Shareholder Services--Exchange Privilege"), the period of
time the shares were held in the Exchange Fund (calculated from the last day of
the month in which the Exchange Fund shares were acquired) is excluded from the
holding period for conversion. If those shares are subsequently re-exchanged for
Class B shares of a Dean Witter Multi-Class Fund, the holding period resumes on
the last day of the month in which Class B shares are reacquired.
 
    If a shareholder has received share certificates for Class B shares, such
certificates must be delivered to the Transfer Agent at least one week prior to
the date for conversion. Class B shares evidenced by share certificates that are
not received by the Transfer Agent at least one week prior to any conversion
date will be converted into Class A shares on the next scheduled conversion date
after such certificates are received.
 
    Effectiveness of the conversion feature is subject to the continuing
availability of a ruling of the Internal Revenue Service or an opinion of
counsel that (i) the conversion of shares does not constitute a taxable event
under the Internal Revenue Code, (ii) Class A shares received on conversion will
have a basis equal to the shareholder's basis in the converted Class B shares
immediately prior to the conversion, and (iii) Class A shares received on
conversion will have a holding period that includes the holding period of the
converted Class B shares. The conversion feature may be suspended if the ruling
or opinion is no longer available. In such event, Class B shares would continue
to be subject to Class B 12b-1 fees.
 
    Class B shares purchased before July 28, 1997 by trusts for which DWTC or
DWTFSB provides discretionary trustee services will convert to Class A shares on
or about August 29, 1997. The CDSC will not be applicable to such shares.
 
LEVEL LOAD ALTERNATIVE--CLASS C SHARES
 
    Class C shares are sold at net asset value next determined without an
initial sales charge but are subject to a CDSC of 1.0% on most redemptions made
within one year after purchase (calculated from the last day of the month in
which the shares were purchased). The CDSC will be assessed on an amount equal
to the lesser of the current market value or the cost of the shares being
redeemed. The CDSC will not be imposed in the circumstances set forth above in
the section "Contingent Deferred Sales Charge Alternative--Class B Shares--CDSC
Waivers," except that the references to six years in the first paragraph of that
section shall mean one year in the case of Class C shares. Class C shares are
subject to an annual 12b-1 fee of up to 1.0% of the average daily net assets of
the Class. Unlike Class B shares, Class C shares have no conversion feature and,
accordingly, an investor that purchases Class C shares will be subject to 12b-1
fees
applica-
 
                                       23
<PAGE>
ble to Class C shares for an indefinite period subject to annual approval by the
Fund's Board of Trustees and regulatory limitations.
 
NO LOAD ALTERNATIVE--CLASS D SHARES
 
    Class D shares are offered without any sales charge on purchase or
redemption and without any 12b-1 fee. Class D shares are offered only to
investors meeting an initial investment minimum of $5 million and the following
categories of investors: (i) investors participating in the InterCapital mutual
fund asset allocation program pursuant to which such persons pay an asset based
fee; (ii) persons participating in a fee-based program approved by the
Distributor, pursuant to which such persons pay an asset based fee for services
in the nature of investment advisory or administrative services (subject to all
of the terms and conditions of such programs, which may include termination fees
and restrictions on transferability of Fund shares); (iii) 401(k) plans
established by DWR and SPS Transaction Services, Inc. (an affiliate of DWR) for
their employees; (iv) certain Unit Investment Trusts sponsored by DWR; (v)
certain other open-end investment companies whose shares are distributed by the
Distributor; and (vi) other categories of investors, at the discretion of the
Board, as disclosed in the then current prospectus of the Fund. Investors who
require a $5 million minimum initial investment to qualify to purchase Class D
shares may satisfy that requirement by investing that amount in a single
transaction in Class D shares of the Fund and other Dean Witter Multi-Class
Funds, subject to the $1,000 minimum initial investment required for that Class
of the Fund. In addition, for the purpose of meeting the $5 million minimum
investment amount, holdings of Class A shares in all Dean Witter Multi-Class
Funds, shares of FSC Funds and shares of Dean Witter Funds for which such shares
have been exchanged will be included together with the current investment
amount. If a shareholder redeems Class A shares and purchases Class D shares,
such redemption may be a taxable event.
 
PLAN OF DISTRIBUTION
 
    The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under the
Act with respect to the distribution of Class A, Class B and Class C shares of
the Fund. In the case of Class A and Class C shares, the Plan provides that the
Fund will reimburse the Distributor and others for the expenses of certain
activities and services incurred by them specifically on behalf of those shares.
Reimbursements for these expenses will be made in monthly payments by the Fund
to the Distributor, which will in no event exceed amounts equal to payments at
the annual rates of 0.25% and 1.0% of the average daily net assets of Class A
and Class C, respectively. In the case of Class B shares, the Plan provides that
the Fund will pay the Distributor a fee, which is accrued daily and paid
monthly, at the annual rate of 1.0% of the lesser of: (a) the average daily
aggregate gross sales of the Fund's Class B shares since the inception of the
Fund (not including reinvestments of dividends or capital gains distributions),
less the average daily aggregate net asset value of the Fund's Class B shares
redeemed since the Fund's inception upon which a CDSC has been imposed or
waived, or (b) the average daily net assets of Class B. The fee is treated by
the Fund as an expense in the year it is accrued. In the case of Class A shares,
the entire amount of the fee currently represents a service fee within the
meaning of the NASD guidelines. In the case of Class B and Class C shares, a
portion of the fee payable pursuant to the Plan, equal to 0.25% of the average
daily net assets of each of these Classes, is currently characterized as a
service fee. A service fee is a payment made for personal service and/or the
maintenance of shareholder accounts.
 
    Additional amounts paid under the Plan in the case of Class B and Class C
shares are paid to the Distributor for services provided and the expenses borne
by the Distributor and others in the distribution of the shares of those
Classes, including the payment of commissions for sales of the shares of those
Classes and incentive compensation to and expenses of DWR's account executives
and others who engage in or support distribution of shares or who service
shareholder accounts, including overhead and telephone expenses; printing and
distribution of prospectuses and reports used in connection with the offering of
the Fund's shares to other
 
                                       24
<PAGE>
than current shareholders; and preparation, printing and distribution of sales
literature and advertising materials. In addition, the Distributor may utilize
fees paid pursuant to the Plan in the case of Class B shares to compensate DWR
and other Selected Broker-Dealers for their opportunity costs in advancing such
amounts, which compensation would be in the form of a carrying charge on any
unreimbursed expenses.
 
    For the fiscal year ended March 31, 1997, Class B shares of the Fund accrued
payments under the Plan amounting to $22,941,076, which amount is equal to 0.84%
of the Fund's average daily net assets for the fiscal year. The payments accrued
under the Plan were calculated pursuant to clause (a) of the compensation
formula under the Plan. All shares held prior to July 28, 1997 have been
designated Class B shares.
 
    In the case of Class B shares, at any given time, the expenses in
distributing Class B shares of the Fund may be in excess of the total of (i) the
payments made by the Fund pursuant to the Plan, and (ii) the proceeds of CDSCs
paid by investors upon the redemption of Class B shares. For example, if $1
million in expenses in distributing Class B shares of the Fund had been incurred
and $750,000 had been received as described in (i) and (ii) above, the excess
expense would amount to $250,000. The Distributor has advised the Fund that such
excess amounts, including the carrying charge described above, totalled
$69,361,411 at March 31, 1997, which was equal to 2.28% of the net assets of the
Fund on such date. Because there is no requirement under the Plan that the
Distributor be reimbursed for all distribution expenses or any requirement that
the Plan be continued from year to year, such excess amount does not constitute
a liability of the Fund. Although there is no legal obligation for the Fund to
pay expenses incurred in excess of payments made to the Distributor under the
Plan, and the proceeds of CDSCs paid by investors upon redemption of shares, if
for any reason the Plan is terminated the Trustees will consider at that time
the manner in which to treat such expenses. Any cumulative expenses incurred,
but not yet recovered through distribution fees or CDSCs, may or may not be
recovered through future distribution fees or CDSCs.
 
    In the case of Class A and Class C shares, expenses incurred pursuant to the
Plan in any calendar year in excess of 0.25% or 1.0% of the average daily net
assets of Class A or Class C, respectively, will not be reimbursed by the Fund
through payments in any subsequent year, except that expenses representing a
gross sales commission credited to account executives at the time of sale may be
reimbursed in the subsequent calendar year. No interest or other financing
charges will be incurred on any Class A or Class C distribution expenses
incurred by the Distributor under the Plan or on any unreimbursed expenses due
to the Distributor pursuant to the Plan.
 
DETERMINATION OF NET ASSET VALUE
 
    The net asset value per share is determined once daily at 4:00 p.m., New
York time (or, on days when the New York Stock Exchange closes prior to 4:00
p.m., at such earlier time), on each day that the New York Stock Exchange is
open by taking the net assets of the Fund, dividing by the number of shares
outstanding and adjusting to the nearest cent. The assets belonging to the Class
A, Class B, Class C and Class D shares will be invested together in a single
portfolio. The net asset value of each Class, however, will be determined
separately by subtracting each Class's accrued expenses and liabilities. The net
asset value per share will not be determined on Good Friday and on such other
federal and non-federal holidays as are observed by the New York Stock Exchange.
 
    In the calculation of the Fund's net asset value: (1) an equity portfolio
security listed or traded on the New York or American Stock Exchange or other
domestic or foreign stock exchange is valued at its latest sale price on that
exchange; if there were no sales that day, the security is valued at the latest
bid price (in cases where a security is traded on more than one exchange, the
security is valued on the exchange designated as the primary market pursuant to
procedures adopted by the Trustees); and
 
                                       25
<PAGE>
(2) all portfolio securities for which over-the-counter market quotations are
readily available are valued at the latest bid price. When market quotations are
not readily available, including circumstances under which it is determined by
the Investment Manager that sale and bid prices are not reflective of a
security's market value, portfolio securities are valued at their fair value as
determined in good faith under procedures established by and under the general
supervision of the Board of Trustees.
 
    Certain of the Fund's portfolio securities may be valued by an outside
pricing service approved by the Fund's Trustees. The pricing service may utilize
a matrix system incorporating security quality, maturity and coupon as the
evaluation model parameters, and/or research evaluations by its staff, including
review of broker-dealer market price quotations, in determining what it believes
is the fair valuation of the portfolio securities valued by such pricing
service.
 
    Short-term debt securities with remaining maturities of 60 days or less at
the time of purchase are valued at amortized cost, unless the Trustees determine
such does not reflect the securities' market value, in which case these
securities will be valued at their fair value as determined by the Trustees.
 
    Generally, trading in foreign securities, as well as corporate bonds, United
States government securities and money market instruments, is substantially
completed each day at various times prior to the close of the New York Stock
Exchange. The values of such securities used in computing the net asset value of
the Fund's shares are determined as of such times. Foreign currency exchange
rates are also generally determined prior to the close of the New York Stock
Exchange. Occasionally, events which affect the values of such securities and
such exchange rates may occur between the times at which they are determined and
the close of the New York Stock Exchange and will therefore not be reflected in
the computation of the Fund's net asset value. If events materially affecting
the value of such securities occur during such period, then these securities
will be valued at their fair value as determined in good faith under procedures
established by and under the supervision of the Trustees.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
    AUTOMATIC INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS.  All income dividends
and capital gains distributions are automatically paid in full and fractional
shares of the applicable Class of the Fund (or, if specified by the shareholder,
in shares of any other open-end Dean Witter Funds), unless the shareholder
requests that they be paid in cash. Shares so acquired are acquired at net asset
value and are not subject to the imposition of a front-end sales charge or a
CDSC (see "Redemptions and Repurchases").
 
    EASYINVEST-SM-.  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account or following
redemption of shares of a Dean Witter money market fund, on a semi-monthly,
monthly or quarterly basis, to the Fund's Transfer Agent for investment in
shares of the Fund (see "Purchase of Fund Shares" and "Redemptions and
Repurchases--Involuntary Redemption").
 
    INVESTMENT OF DIVIDENDS OR DISTRIBUTIONS RECEIVED IN CASH.  Any shareholder
who receives a cash payment representing a dividend or capital gains
distribution may invest such dividend or distribution in shares of the
applicable Class at the net asset value per share next determined after receipt
by the Transfer Agent, by returning the check or the proceeds to the Transfer
Agent within 30 days after the payment date. Shares so acquired are acquired at
net asset value and are not subject to the imposition of a front-end sales
charge or a CDSC (see "Redemptions and Repurchases").
 
    SYSTEMATIC WITHDRAWAL PLAN.  A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders who own or purchase shares of the Fund
having a minimum value of $10,000 based upon the then current net asset value.
The
With-
 
                                       26
<PAGE>
drawal Plan provides for monthly or quarterly (March, June, September and
December) checks in any dollar amount, not less than $25 or in any whole
percentage of the account balance, on an annualized basis. Any applicable CDSC
will be imposed on shares redeemed under the Withdrawal Plan (see "Purchase of
Fund Shares"). Therefore, any shareholder participating in the Withdrawal Plan
will have sufficient shares redeemed from his or her account so that the
proceeds (net of any applicable CDSC) to the shareholder will be the designated
monthly or quarterly amount. Withdrawal plan payments should not be considered
as dividends, yields or income. If periodic withdrawal plan payments
continuously exceed net investment income and net capital gains, the
shareholder's original investment will be correspondingly reduced and ultimately
exhausted. Each withdrawal constitutes a redemption of shares and any gain or
loss realized must be recognized for federal income tax purposes.
 
    Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for further information about any of the
above services.
 
    TAX-SHELTERED RETIREMENT PLANS.  Retirement plans are available for use by
corporations, the self-employed, eligible Individual Retirement Accounts and
Custodial Accounts under Section 403(b)(7) of the Internal Revenue Code.
Adoption of such plans should be on advice of legal counsel or tax adviser.
 
    For further information regarding plan administration, custodial fees and
other details, investors should contact their account executive or the Transfer
Agent.
 
EXCHANGE PRIVILEGE
 
    Shares of each Class may be exchanged for shares of the same Class of any
other Dean Witter Multi-Class Fund without the imposition of any exchange fee.
Shares may also be exchanged for shares of the following funds: Dean Witter
Short-Term U.S. Treasury Trust, Dean Witter Limited Term Municipal Trust, Dean
Witter Short-Term Bond Fund, Dean Witter Intermediate Term U.S. Treasury Trust
and five Dean Witter funds which are money market funds (the "Exchange Funds").
Class A shares may also be exchanged for shares of Dean Witter Multi-State
Municipal Series Trust and Dean Witter Hawaii Municipal Trust, which are Dean
Witter Funds sold with a front-end sales charge ("FSC Funds"). Class B shares
may also be exchanged for shares of Dean Witter Global Short-Term Income Fund
Inc., Dean Witter High Income Securities and Dean Witter National Municipal
Trust, which are Dean Witter Funds offered with a CDSC ("CDSC Funds"). Exchanges
may be made after the shares of the Fund acquired by purchase (not by exchange
or dividend reinvestment) have been held for thirty days. There is no waiting
period for exchanges of shares acquired by exchange or dividend reinvestment.
 
    An exchange to another Dean Witter Multi-Class Fund, any FSC Fund, any CDSC
Fund or any Exchange Fund that is not a money market fund is on the basis of the
next calculated net asset value per share of each fund after the exchange order
is received. When exchanging into a money market fund from the Fund, shares of
the Fund are redeemed out of the Fund at their next calculated net asset value
and the proceeds of the redemption are used to purchase shares of the money
market fund at their net asset value determined the following business day.
Subsequent exchanges between any of the money market funds and any of the Dean
Witter Multi-Class Funds, FSC Funds or CDSC Funds or any Exchange Fund that is
not a money market fund can be effected on the same basis.
 
    No CDSC is imposed at the time of any exchange of shares, although any
applicable CDSC will be imposed upon ultimate redemption. During the period of
time the shareholder remains in an Exchange Fund (calculated from the last day
of the month in which the Exchange Fund shares were acquired), the holding
period (for the purpose of determining the rate of the CDSC) is frozen. If those
shares are subsequently re-exchanged for shares of a Dean Witter Multi-Class
Fund or shares of a CDSC Fund, the holding period previously frozen when the
first exchange was made resumes on the last day of the month in which shares of
a Dean Witter Multi-
 
                                       27
<PAGE>
Class Fund or shares of a CDSC Fund are reacquired. Thus, the CDSC is based upon
the time (calculated as described above) the shareholder was invested in shares
of a Dean Witter Multi-Class Fund or in shares of a CDSC Fund (see "Purchase of
Fund Shares"). In the case of exchanges of Class A shares which are subject to a
CDSC, the holding period also includes the time (calculated as described above)
the shareholder was invested in shares of a FSC Fund. However, in the case of
shares exchanged into an Exchange Fund on or after April 23, 1990, upon a
redemption of shares which results in a CDSC being imposed, a credit (not to
exceed the amount of the CDSC) will be given in an amount equal to the Exchange
Fund 12b-1 distribution fees incurred on or after that date which are
attributable to those shares. (Exchange Fund 12b-1 distribution fees are
described in the prospectuses for those funds.) Class B shares of the Fund
acquired in exchange for Class B shares of another Dean Witter Multi-Class Fund
or shares of a CDSC Fund having a different CDSC schedule than that of this Fund
will be subject to the higher CDSC schedule, even if such shares are
subsequently re-exchanged for shares of the fund with the lower CDSC schedule.
 
    ADDITIONAL INFORMATION REGARDING EXCHANGES. Purchases and exchanges should
be made for investment purposes only. A pattern of frequent exchanges may be
deemed by the Investment Manager to be abusive and contrary to the best
interests of the Fund's other shareholders and, at the Investment Manager's
discretion, may be limited by the Fund's refusal to accept additional purchases
and/ or exchanges from the investor. Although the Fund does not have any
specific definition of what constitutes a pattern of frequent exchanges, and
will consider all relevant factors in determining whether a particular situation
is abusive and contrary to the best interests of the Fund and its other
shareholders, investors should be aware that the Fund and each of the other Dean
Witter Funds may in their discretion limit or otherwise restrict the number of
times this Exchange Privilege may be exercised by any investor. Any such
restriction will be made by the Fund on a prospective basis only, upon notice of
the shareholder not later than ten days following such shareholder's most recent
exchange.
 
    The Exchange Privilege may be terminated or revised at any time by the Fund
and/or any of such Dean Witter Funds for which shares of the Fund have been
exchanged, upon such notice as may be required by applicable regulatory
agencies. Shareholders maintaining margin accounts with DWR or another Selected
Broker-Dealer are referred to their account executive regarding restrictions on
exchange of shares of the Fund pledged in the margin account.
 
    The current prospectus for each fund describes its investment objective(s)
and policies, and shareholders should obtain one and examine it carefully before
investing. Exchanges are subject to the minimum investment requirement of each
Class of shares and any other conditions imposed by each fund. In the case of
any shareholder holding a share certificate or certificates, no exchanges may be
made until all applicable share certificates have been received by the Transfer
Agent and deposited in the shareholder's account. An exchange will be treated
for federal income tax purposes the same as a repurchase or redemption of
shares, on which the shareholder may realize a capital gain or loss. However,
the ability to deduct capital losses on an exchange may be limited in situations
where there is an exchange of shares within ninety days after the shares are
purchased. The Exchange Privilege is only available in states where an exchange
may legally be made.
 
    If DWR or another Selected Broker-Dealer is the current dealer of record and
its account numbers are part of the account information, shareholders may
initiate an exchange of shares of the Fund for shares of any of the Dean Witter
Funds (for which the Exchange Privilege is available) pursuant to this Exchange
Privilege by contacting their account executive (no Exchange Privilege
Authorization Form is required). Other shareholders (and those shareholders who
are clients of DWR or other Selected Broker-Dealers but who wish to make
 
                                       28
<PAGE>
exchanges directly by writing or telephoning the Transfer Agent) must complete
and forward to the Transfer Agent an Exchange Privilege Authorization Form,
copies of which may be obtained from the Transfer Agent, to initiate an
exchange. If the Authorization Form is used, exchanges may be made in writing or
by contacting the Transfer Agent at (800) 869-NEWS (toll-free).
 
    The Fund will employ reasonable procedures to confirm that exchange
instructions communicated over the telephone are genuine. Such procedures may
include requiring various forms of personal identification such as name, mailing
address, social security or other tax identification number and DWR or other
Selected Broker-Dealer account number (if any). Telephone instructions may also
be recorded. If such procedures are not employed, the Fund may be liable for any
losses due to unauthorized or fraudulent instructions.
 
    Telephone exchange instructions will be accepted if received by the Transfer
Agent between 9:00 a.m. and 4:00 p.m. New York time, on any day the New York
Stock Exchange is open. Any shareholder wishing to make an exchange who has
previously filed an Exchange Privilege Authorization Form and who is unable to
reach the Fund by telephone should contact his or her DWR or other Selected
Broker-Dealer account executive, if appropriate, or make a written exchange
request. Shareholders are advised that during periods of drastic economic or
market changes, it is possible that the telephone exchange procedures may be
difficult to implement, although this has not been the experience with the Dean
Witter Funds in the past.
 
    For further information regarding the Exchange Privilege, shareholders
should contact their DWR or other Selected Broker-Dealer account executive or
the Transfer Agent.
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
    REDEMPTION.  Shares of each Class of the Fund can be redeemed for cash at
any time at the net asset value per share next determined; less the amount of
any applicable CDSC in the case of Class A, Class B or Class C shares (see
"Purchase of Fund Shares"). If shares are held in a shareholder's account
without a share certificate, a written request for redemption to the Fund's
Transfer Agent at P.O. Box 983, Jersey City, NJ 07303 is required. If
certificates are held by the shareholder, the shares may be redeemed by
surrendering the certificates with a written request for redemption along with
any additional documentation required by the Transfer Agent.
 
    REPURCHASE.  DWR and other Selected Broker-Dealers are authorized to
repurchase shares represented by a share certificate which is delivered to any
of their offices. Shares held in a shareholder's account without a share
certificate may also be repurchased by DWR and other Selected Broker-Dealers
upon the telephonic or telegraphic request of the shareholder. The repurchase
price is the net asset value next computed (see "Purchase of Fund Shares") after
such repurchase order is received by DWR and other Selected Broker-Dealers,
reduced by any applicable CDSC.
 
    The CDSC, if any, will be the only fee imposed upon redemption by either the
Fund or the Distributor. The offer by DWR and other Selected Broker-Dealers to
repurchase shares may be suspended without notice by them at any time. In that
event, shareholders may redeem their shares through the Fund's Transfer Agent as
set forth above under "Redemption."
 
    PAYMENT FOR SHARES REDEEMED OR REPURCHASED.  Payment for shares presented
for repurchase or redemption will be made by check within seven days after
receipt by the Transfer Agent of the certificate and/or written request in good
order. Such payment may be postponed or the right of redemption suspended under
unusual circumstances; e.g., when normal trading is not taking place on the New
York Stock Exchange. If the shares to be redeemed have recently been purchased
by check, payment of the redemption proceeds may be delayed for the minimum time
 
                                       29
<PAGE>
needed to verify that the check used for investment has been honored (not more
than fifteen days from the time of receipt of the check by the Transfer Agent).
Shareholders maintaining margin accounts with DWR or another Selected
Broker-Dealer are referred to their account executive regarding restrictions on
redemption of shares of the Fund pledged in the margin account.
 
    REINSTATEMENT PRIVILEGE.  A shareholder who has had his or her shares
redeemed or repurchased and has not previously exercised this reinstatement
privilege may, within 35 days after the date of the redemption or repurchase,
reinstate any portion or all of the proceeds of such redemption or repurchase in
shares of the Fund in the same Class from which such shares were redeemed or
repurchased, at net asset value next determined after a reinstatement request,
together with the proceeds, is received by the Transfer Agent and receive a pro
rata credit for any CDSC paid in connection with such redemption or repurchase.
 
    INVOLUNTARY REDEMPTION.  The Fund reserves the right to redeem, on sixty
days' notice and at net asset value, the shares (other than shares held in an
Individual Retirement Account or Custodial Account under Section 403(b)(7) of
the Internal Revenue Code) of any shareholder whose shares have a value of less
than $100 as a result of redemptions or repurchases or such lesser amount as may
be fixed by the Trustees or, in the case of an account opened through
EasyInvest, if after twelve months the shareholder has invested less than $1,000
in the account. However, before the Fund redeems such shares and sends the
proceeds to the shareholder, it will notify the shareholder that the value of
the shares is less than the applicable amount and allow him or her sixty days to
make an additional investment in an amount which will increase the value of his
or her account to at least the applicable amount before the redemption is
processed. No CDSC will be imposed on any involuntary redemption.
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    DIVIDENDS AND DISTRIBUTIONS.  The Fund declares dividends separately for
each Class of shares and intends to pay quarterly income dividends and to
distribute net short-term and net long-term capital gains, if any, at least once
each year. The Fund may, however, determine either to distribute or to retain
all or part of any long-term capital gains in any year for reinvestment.
 
    All dividends and any capital gains distributions will be paid in additional
shares of the same Class and automatically credited to the shareholder's account
without issuance of a share certificate unless the shareholder requests in
writing that all dividends and/or distributions be paid in cash. Shares acquired
by dividend and distribution reinvestments will not be subject to any front-end
sales charge or CDSC. Class B shares acquired through dividend and distribution
reinvestments will become eligible for conversion to Class A shares on a pro
rata basis. Distributions paid on Class A and Class D shares will be higher than
for Class B and Class C shares because distribution fees paid by Class B and
Class C shares are higher. (See "Shareholder Services--Automatic Investment of
Dividends and Distributions.")
 
    TAXES.  Because the Fund intends to distribute all of its net investment
income and net short-term capital gains to shareholders and otherwise remain
qualified as a regulated investment company under Subchapter M of the Code, it
is not expected that the Fund will be required to pay any Federal income tax on
any such income and capital gains, other than any tax resulting from investing
in passive foreign investment companies, as discussed below. Shareholders will
normally have to pay Federal income taxes, and any state and local income taxes,
on the dividends and distributions they receive from the Fund.
 
    Distributions of net investment income and net short-term capital gains are
taxable to the shareholder as ordinary dividend income regardless of whether the
shareholder receives such distributions in additional shares or in cash. Any
dividends declared in the last quarter of any calendar year
 
                                       30
<PAGE>
which are paid in the following year prior to February 1 will be deemed received
by the shareholder in the prior year. Some part of such dividends and
distributions may be eligible for the Federal dividends received deduction
available to the Fund's corporate shareholders.
 
    Distributions of net long-term capital gains, if any, are taxable to
shareholders as long-term capital gains regardless of how long a shareholder has
held the Fund's shares and regardless of whether the distribution is received in
additional shares or in cash. Capital gains distributions are not eligible for
the dividends received deduction.
 
    The Fund may at times make payments from sources other than income or net
capital gains. Payments from such sources will, in effect, represent a return of
a portion of each shareholder's investment. All, or a portion, of such payments
will not be taxable to shareholders.
 
    After the end of the calendar year, shareholders will receive full
information on their dividends and capital gains distributions for tax purposes,
including information as to the portion taxable as ordinary income, the portion
taxable as long-term capital gains, and the amount of dividends eligible for the
Federal dividends received deduction available to corporations. To avoid being
subject to a 31% Federal backup withholding tax on taxable dividends, capital
gains distributions and the proceeds of redemptions and repurchases,
shareholders' taxpayer identification numbers must be furnished and certified as
to their accuracy.
 
    Dividends, interest and gains received by the Fund may give rise to
withholding and other taxes imposed by foreign countries. If it qualifies for
and makes the appropriate election with the Internal Revenue Service, the Fund
will report annually to its shareholders the amount per share of such taxes to
enable shareholders to claim United States foreign tax credits or deductions
with respect to such taxes. In the absence of such an election, the Fund would
deduct foreign taxes in computing the amount of its distributable income.
 
    Shareholders should consult their tax advisers as to the applicability of
the foregoing to their current situation.
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
    From time to time the Fund may quote its "total return" in advertisements
and sales literature. These figures are computed separately for Class A, Class
B, Class C and Class D shares. The total return of the Fund is based on
historical earnings and is not intended to indicate future performance. The
"average annual total return" of the Fund refers to a figure reflecting the
average annualized percentage increase (or decrease) in the value of an initial
investment in a Class of the Fund of $1,000 over periods of one year, as well as
over the life of the Fund. Average annual total return reflects all income
earned by the Fund, any appreciation or depreciation of the Fund's assets, all
expenses incurred by the applicable Class and all sales charges incurred by
shareholders, for the stated periods. It also assumes reinvestment of all
dividends and distributions paid by the Fund.
 
    In addition to the foregoing, the Fund may advertise its total return for
each Class over different periods of time by means of aggregate, average,
year-by-year or other types of total return figures. The Fund may also advertise
the growth of hypothetical investments of $10,000, $50,000 and $100,000 in each
Class of shares of the Fund. Such calculations may or may not reflect the
deduction of any sales charge which, if reflected, would reduce the performance
quoted. The Fund from time to time may also advertise its performance relative
to certain performance rankings and indexes compiled by independent
organizations, such as mutual fund performance rankings of Lipper Analytical
Services, Inc.
 
                                       31
<PAGE>
ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------
 
    VOTING RIGHTS.  All shares of beneficial interest of the Fund are of $0.01
par value and are equal as to earnings, assets and voting privileges except that
each Class will have exclusive voting privileges with respect to matters
relating to distribution expenses borne solely by such Class or any other matter
in which the interests of one Class differ from the interests of any other
Class. In addition, Class B shareholders will have the right to vote on any
proposed material increase in Class A's expenses, if such proposal is submitted
separately to Class A shareholders. Also, as discussed herein, Class A, Class B
and Class C bear the expenses related to the distribution of their respective
shares.
 
    The Fund is not required to hold Annual Meetings of Shareholders and in
ordinary circumstances the Fund does not intend to hold such meetings. The
Trustees may call Special Meetings of Shareholders for action by shareholder
vote as may be required by the Act or the Declaration of Trust.
 
    Under Massachusetts law, shareholders of a business trust may, under certain
circumstances, be held personally liable as partners for obligations of the
Fund. However, the Declaration of Trust contains an express disclaimer of
shareholder liability for acts or obligations of the Fund, requires that Fund
obligations include such disclaimer, and provides for indemnification out of the
Fund's property for any shareholder held personally liable for the obligations
of the Fund. Thus, the risk of a shareholder incurring financial loss on account
of shareholder liability is limited to circumstances in which the Fund itself
would be unable to meet its obligations. Given the above limitations on
shareholder personal liability and the nature of the Fund's assets and
operations, the possibility of the Fund being unable to meet its obligations is
remote and, in the opinion of Massachusetts counsel to the Fund, the risk to
Fund shareholders of personal liability is remote.
 
    CODE OF ETHICS.  Directors, officers and employees of InterCapital, Dean
Witter Services Company Inc. and the Distributor are subject to a strict Code of
Ethics adopted by those companies. The Code of Ethics is intended to ensure that
the interests of shareholders and other clients are placed ahead of any personal
interest, that no undue personal benefit is obtained from a person's employment
activities and that actual and potential conflicts of interest are avoided. To
achieve these goals and comply with regulatory requirements, the Code of Ethics
requires, among other things, that personal securities transactions by employees
of the companies be subject to an advance clearance process to monitor that no
Dean Witter Fund is engaged at the same time in a purchase or sale of the same
security. The Code of Ethics bans the purchase of securities in an initial
public offering, and also prohibits engaging in futures and options transactions
and profiting on short-term trading (that is, a purchase within sixty days of a
sale or a sale within sixty days of a purchase) of a security. In addition,
investment personnel may not purchase or sell a security for their personal
account within thirty days before or after any transaction in any Dean Witter
Fund managed by them. Any violations of the Code of Ethics are subject to
sanctions, including reprimand, demotion or suspension or termination of
employment. The Code of Ethics comports with regulatory requirements and the
recommendations in the 1994 report by the Investment Company Institute Advisory
Group on Personal Investing.
 
    MASTER/FEEDER CONVERSION.  The Fund reserves the right to seek to achieve
its investment objective by investing all of its investable assets in a
diversified, open-end management investment company having the same investment
objective and policies and substantially the same investment restrictions as
those applicable to the Fund.
 
    SHAREHOLDER INQUIRIES.  All inquiries regarding the Fund should be directed
to the Fund at the telephone numbers or address set forth on the front cover of
this Prospectus.
 
                                       32
<PAGE>
Dean Witter
Global Dividend Growth Securities
Two World Trade Center
New York, New York 10048
 
TRUSTEES
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Dr. Manuel H. Johnson
Michael E. Nugent
Philip J. Purcell
John L. Schroeder
 
OFFICERS
Charles A. Fiumefreddo
Chairman and Chief Executive Officer
Barry Fink
Vice President, Secretary and
General Counsel
Paul D. Vance
Vice President
Thomas F. Caloia
Treasurer
 
CUSTODIAN
The Chase Manhattan Bank
One Chase Plaza
New York, New York 10081
 
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
Dean Witter Trust Company
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
 
INDEPENDENT ACCOUNTANTS
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
 
INVESTMENT MANAGER
Dean Witter InterCapital Inc.
 
DEAN WITTER
GLOBAL DIVIDEND
GROWTH SECURITIES
 
                               [PHOTO]
                                                     PROSPECTUS -- JULY 28, 1997
<PAGE>
                    DEAN WITTER WORLD WIDE INVESTMENT TRUST
                   PROXY FOR SPECIAL MEETING OF SHAREHOLDERS
                            TO BE HELD MAY 21, 1998
 
       The undersigned shareholder of Dean Witter World Wide Investment
       Trust does hereby appoint BARRY FINK, ROBERT M. SCANLAN and JOSEPH
       MCALINDEN and each of them, as attorneys-in-fact and proxies of
       the undersigned, each with the full power of substitution, to
       attend the Special Meeting of Shareholders of Dean Witter World
       Wide Investment Trust to be held on May 21, 1998, in Conference
       Room A, 44th Floor, Two World Trade Center, New York, New York at
       9:00 A.M., New York time, and at all adjournments thereof and to
       vote the shares held in the name of the undersigned on the record
       date for said meeting for the Proposal specified on the reverse
       side hereof. Said attorneys-in-fact shall vote in accordance with
       their best judgment as to any other matter.
 
                          (CONTINUED ON REVERSE SIDE)
 
       THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER
       DIRECTED HEREIN BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS
       MADE, THIS PROXY WILL BE VOTED "FOR" THE PROPOSAL SET FORTH ON THE
       REVERSE HEREOF AND AS RECOMMENDED BY THE BOARD OF TRUSTEES.
 
        IMPORTANT -- THIS PROXY MUST BE SIGNED AND DATED ON THE REVERSE
                                     SIDE.
<PAGE>
   /x/ PLEASE MARK BOXES IN BLACK OR BLUE INK
 
The Proposal:
                             FOR   AGAINST ABSTAIN
Approval of the Agreement and
Plan of
Reorganization, dated as of
January 29, 1998,
pursuant to which substantially
all of the assets
                            / / / / / /
of Dean Witter World Wide Investment Trust would be combined with those of Dean
Witter Global Dividend Growth Securities and
shareholders of Dean Witter World Wide Investment Trust would become
shareholders of Dean Witter Global Dividend Growth Securities
 
receiving shares in Dean Witter Global Dividend Growth Securities with a value
equal to the value of their holdings
 
in Dean Witter World Wide Investment Trust.
 
Please sign personally. If the shares are registered in more than one name, each
joint owner or each fiduciary
should sign personally. Only authorized officers should sign for corporations.
 
                                          Date
 
      ------------------------------------------------------------------------
 
                                          Please make sure to sign and date
                                          this Proxy using black or blue ink.
                                          -----------------------
                                                          Shareholder sign in
                                          the box above
                                          -----------------------
                                                        Co-Owner (if any) sign
                                          in the box above
 
- --------------------------------------------------------------------------------
 
                    --    PLEASE DETACH AT PERFORATION   - -
 
                    DEAN WITTER WORLD WIDE INVESTMENT TRUST
- -------------------------------------------------------------------------------
 
                                    IMPORTANT
                      PLEASE SEND IN YOUR PROXY......TODAY!
        YOU ARE URGED TO DATE AND SIGN THE ATTACHED PROXY AND RETURN IT
        PROMPTLY IN THE ENCLOSED ENVELOPE. THIS WILL HELP SAVE THE
        EXPENSE OF FOLLOW-UP LETTERS TO SHAREHOLDERS WHO HAVE NOT
        RESPONDED.
 
   
PRX00042 - PRX00364 - PRX00365 - PRX00366
    


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission