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<PAGE> PAGE 4
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<PAGE> PAGE 5
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SIGNATURE BARRY FINK
TITLE VP & GENERAL COUNSEL
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<CIK> 0000923757
<NAME> MORGAN STANLEY DEAN WITTER MID-CAP GROWTH FUND - CLASS A
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<CIK> 0000923757
<NAME> MORGAN STANLEY DEAN WITTER MID-CAP GROWTH FUND - CLASS B
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000923757
<NAME> MORGAN STANLEY DEAN WITTER MID-CAP GROWTH FUND - CLASS C
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<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000923757
<NAME> MORGAN STANLEY DEAN WITTER MID-CAP GROWTH FUND - CLASS D
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<SHARES-COMMON-PRIOR> 62,443
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<OVERDISTRIBUTION-GAINS> 0
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<DISTRIBUTIONS-OF-GAINS> (193,217)
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<NUMBER-OF-SHARES-SOLD> 2,538,960
<NUMBER-OF-SHARES-REDEEMED> (2,408,774)
<SHARES-REINVESTED> 3,156
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</TABLE>
<TABLE>
<CAPTION>
Exhibit 77(0) Morgan Stanley Dean Witter Mid-Cap Growth Fund 10f-3
transactions for the period November 1, 1998 - May 31, 1999
<S> <C> <C> <C> <C> <C> <C> <C>
TOTAL TOTAL %
ISSUED/ PURCHASED
DATE PRICE SHARES % of PRINCIPAL BY MSDW
SECURITY PURCHASED SHARE PURCHASED Assets AMOUNT FUNDS BROKER(S)
Banco Santander 11/20/98 $21.50 95,000 0.380% $155,875,000.00 1.324% ABN Amro
Puerto Rico Chicago
Federal Mogul Corp. 12/14/98 $56.94 30,000 0.324% $797,125,000.00 0.221% Bear Stearns
& Co.
Fox Entertainment 11/10/98 $22.50 55,100 .237% $2,808,000,000. 0.160% Merrill Lynch
& Co.
The MONY Group 11/10/98 $23.50 27,000 .073% $264,375,000.00 0.907% Goldman Sachs
Ticketmaster Online 12/2/98 $14.00 1,000 .003% $ 98,000,000.00 0.614% Banc Boston
-City Search Robertson Stephens
XOOM 12/9/98 $14.00 10,000 .025% $ 56,000,000.00 0.825% Bear Stearns
& Co.
Entercom 1/28/99 $22.50 22,400 .084% $306,618,750.00 0.550% First Boston
Communications
Keebler Foods 1/20/99 $33.44 109,000 .598% $541,687,500.00 0.123% First Boston
Marketwatch.com 1/15/99 $17.00 2,700 .008% $ 46,750,000.00 0.582% BT Alex Brown
Inc.
Nvidia Corp. 1/21/99 $12.00 6,100 .020% $ 42,000,000.00 0.729% Donaldson Lufkin
Prodigy 2/10/99 $15.00 39,800 .109% $150,000,000.00 1.315% Bear Stearns, Inc.
Communications Corp
</TABLE>
Morgan Stanley Dean Witter Mid-Cap Growth Fund
Item 77.C. Matters Submitted to a Vote of Security Holders -
June 8, 1999
Approval of an Agreement and Plan of Reorganization, dated
February 25, 1999, between Morgan Stanley Dean Witter Mid-Cap
Growth Fund ("MSDW Mid-Cap") and TCW/DW Mid-Cap Equity Trust
("TCW/DW Mid-Cap Equity"), pursuant to which substantially all of
the assets of MSDW Mid-Cap would be combined with those of TCW/DW
Mid-Cap Equity and shareholders of MSDW Mid-Cap would become
shareholders of TCW/DW Mid-Cap Equity receiving shares of TCW/DW
Mid-Cap Equity with a value equal to the value of their holdings
in MSDW Mid-Cap:
For: 16,349,748 Against: 561,888
Abstain: 1,732,954
Item 77c - msdw mid-cap growth
