TCW/DW INCOME AND GROWTH FUND

                   PROXY FOR SPECIAL MEETING OF SHAREHOLDERS

                            TO BE HELD JUNE 8, 1999

     The undersigned shareholder of TCW/DW Income and Growth Fund does hereby
appoint BARRY FINK, RONALD E. ROBISON and ROBERT S. GIAMBRONE 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 TCW/DW Income
and Growth Fund to be held on June 8, 1999, in Conference Room A, Forty-Fourth
Floor, Two World Trade Center, New York, New York at 11:00 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.


12-DIGIT CONTROL NO.
TO VOTE BY MAIL, PLEASE COMPLETE AND RETURN THIS CARD
YOU ALSO MAY VOTE A PROXY BY TOUCH-TONE PHONE OR BY INTERNET
(See enclosed Voting Information Card for further instructions)
TO VOTE A PROXY BY PHONE, call Toll-Free: 1-800-690-6903
TO VOTE A PROXY BY INTERNET, visit our Website(s): WWW.MSDWT.COM or
WWW.PROXYVOTE.COM

 
 

     PLEASE MARK VOTES AS
     IN THE EXAMPLE USING
[X]
     BLACK OR BLUE INK
 
The Proposal:
 

Approval of the Agreement and Plan of Reorganization, dated as of February 25,
1999, pursuant to which substantially all of the assets of TCW/DW Income and
Growth Fund would be combined with those of Morgan Stanley Dean Witter Income
Builder Fund and shareholders of TCW/DW Income and Growth Fund would become
shareholders of Morgan Stanley Dean Witter Income Builder Fund receiving shares
in Morgan Stanley Dean Witter Income Builder Fund with a value equal to the
value of their holdings in TCW/DW Income and Growth Fund.

           FOR              AGAINST               ABSTAIN
           [ ]                [ ]                   [ ]


                                       Date
                                            ----------------------------------

                                        Please make sure to sign and date this
                                        Proxy using black or blue ink. 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.

                                        ---------------------------------------

                                        ---------------------------------------
                                        Shareholder sign in the box above

                                        ---------------------------------------

                                        ---------------------------------------
                                        Co-Owner (if any) sign in the box above

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                         PLEASE DETACH AT PERFORATION  



                         TCW/DW INCOME AND GROWTH FUND

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                                   IMPORTANT

              USE ONE OF THESE THREE EASY WAYS TO VOTE YOUR PROXY

 1. BY MAIL. PLEASE DATE, SIGN AND RETURN THE ABOVE PROXY CARD IN THE ENCLOSED
    POSTAGE PAID ENVELOPE .
 2. BY INTERNET. HAVE YOUR PROXY CARD AT HAND. GO TO THE "VOTE YOUR PROXY HERE"
    LINK ON THE WEBSITE WWW.MSDWT.COM OR WWW.PROXYVOTE.COM. ENTER YOUR 12 DIGIT
    CONTROL NUMBER LOCATED ON THE PROXY CARD AND FOLLOW THE SIMPLE INSTRUCTIONS
 3. BY TELEPHONE. HAVE YOUR PROXY CARD AT HAND. CALL 1-800-690-6903 ON A
    TOUCH-TONE PHONE. ENTER YOUR 12-DIGIT CONTROL NUMBER LOCATED ON THE PROXY
    CARD AND FOLLOW THE SIMPLE RECORDED INSTRUCTIONS.
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