MORGAN STANLEY DEAN WITTER STRATEGIST FUND
497, 1998-10-15
Previous: WALTER INDUSTRIES INC /NEW/, 10-Q, 1998-10-15
Next: SCUDDER KEMPER INVESTMENTS INC, SC 13G/A, 1998-10-15



<PAGE>
                         MORGAN STANLEY DEAN WITTER
                         STRATEGIST FUND
                         PROSPECTUS--SEPTEMBER 30, 1998
 
- -------------------------------------------------------------------------------
 
MORGAN STANLEY DEAN WITTER STRATEGIST FUND (THE "FUND") IS AN OPEN-END,
NON-DIVERSIFIED MANAGEMENT INVESTMENT COMPANY, THE OBJECTIVE OF WHICH IS TO
MAXIMIZE THE TOTAL RETURN ON ITS INVESTMENTS. THE FUND SEEKS TO ACHIEVE ITS
INVESTMENT OBJECTIVE BY ACTIVELY ALLOCATING ITS ASSETS AMONG THE MAJOR ASSET
CATEGORIES OF EQUITY SECURITIES, FIXED-INCOME SECURITIES AND MONEY MARKET
INSTRUMENTS. 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. 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 September 30, 1998, 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.
 
<TABLE>
<CAPTION>
TABLE OF CONTENTS
 
<S>                                                 <C>
Prospectus Summary................................       2
 
Summary of Fund Expenses..........................       4
 
Financial Highlights..............................       5
 
The Fund and its Management.......................       8
 
Investment Objective and Policies.................       8
 
  Risk Considerations.............................      11
 
Investment Restrictions...........................      14
 
Purchase of Fund Shares...........................      14
 
Shareholder Services..............................      22
 
Redemptions and Repurchases.......................      25
 
Dividends, Distributions and Taxes................      26
 
Performance Information...........................      26
 
Additional Information............................      27
</TABLE>
 
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.
 
MORGAN STANLEY DEAN WITTER
STRATEGIST FUND
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
(212) 392-2550 or (800) 869-NEWS (toll-free)
 
- --------------------------------------------------------------------------------
 
  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.
 
           MORGAN STANLEY DEAN WITTER DISTRIBUTORS INC., DISTRIBUTOR
<PAGE>
PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
 
<TABLE>
<S>             <C>
THE FUND        The Fund is organized as a Trust, commonly known as a Massachusetts business trust, and
                is an open-end, non-diversified management investment company. The Fund invests in
                equity securities, fixed-income securities and money market instruments in portions
                determined by the Investment Manager to best enable the Fund to maximize the total
                return on a shareholder's investment (see page 8).
- -------------------------------------------------------------------------------------------------------
SHARES OFFERED  Shares of beneficial interest with $0.01 par value (see page 27). The Fund offers four
                Classes of shares, each with a different combination of sales charges, ongoing fees and
                other features (see pages 14-22).
- -------------------------------------------------------------------------------------------------------
MINIMUM         The minimum initial investment for each Class is $1,000 ($100 if the account is opened
PURCHASE        through EasyInvest-SM-). Class D shares are only available to persons investing $5
                million ($25 million for certain qualified plans) or more and to certain other limited
                categories of investors. For the purpose of meeting the minimum $5 million (or $25
                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 Morgan Stanley Dean Witter Advisors Inc. serves as
                investment manager ("Morgan Stanley Dean Witter Funds") that are sold with a front-end
                sales charge, and concurrent investments in Class D shares of the Fund and other Morgan
                Stanley Dean Witter Funds that are multiple class funds, will be aggregated. The minimum
                subsequent investment is $100 (see page 14).
- -------------------------------------------------------------------------------------------------------
INVESTMENT      The investment objective of the Fund is to maximize the total return on its investments
OBJECTIVE       (see page 8).
- -------------------------------------------------------------------------------------------------------
INVESTMENT      Morgan Stanley Dean Witter Advisors Inc., the Investment Manager of the Fund, and its
MANAGER         wholly-owned subsidiary, Morgan Stanley Dean Witter Services Company Inc., serve in
                various investment management, advisory, management and administrative capacities to 101
                investment companies and other portfolios with assets of approximately $110 billion at
                August 31, 1998 (see page 8).
- -------------------------------------------------------------------------------------------------------
MANAGEMENT FEE  The Investment Manager receives a monthly fee at the annual rate of 0.60% of daily net
                assets on assets not exceeding $500 million, scaled down at various asset levels to
                0.45% on daily net assets exceeding $2 billion (see page 8).
- -------------------------------------------------------------------------------------------------------
DISTRIBUTOR     Morgan Stanley Dean Witter Distributors Inc. is the Distributor of the Fund's shares.
AND             The Fund has adopted a distribution plan pursuant to Rule 12b-1 under the Investment
DISTRIBUTION    Company Act (the "12b-1 Plan") with respect to the distribution fees paid by the Class
FEE             A, Class B, and Class C shares of the Fund to the Distributor. 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 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 14 and 21).
- -------------------------------------------------------------------------------------------------------
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 14, 17 and 21).
 
                - 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 (i) 1.0%
                of the lesser of: (a) the average daily net sales of the Fund's Class B shares since
                implementation of the 12b-1 Plan on November 8, 1989 or (b) the average daily net assets
                of Class B attributable to shares issued since implementation of the 12b-1 Plan, plus
                (ii) 0.25% of the average daily net assets of Class B attributable to shares issued
                prior to implementation of the 12b-1 Plan. All shares of the Fund held prior to July 28,
                1997 (other than shares which were purchased prior to November 8, 1989 (and, with
                respect to such shares, certain shares acquired through reinvestment of dividends and
                capital gains distributions) and the shares held by certain employee benefit plans
                established by Dean Witter Reynolds Inc. and its affiliate, SPS Transaction
</TABLE>
 
- --------------------------------------------------------------------------------
 
2
<PAGE>
- --------------------------------------------------------------------------------
<TABLE>
<S>             <C>
                Services, Inc.) have been designated Class B shares. Shares which were purchased prior
                to November 8, 1989 (and, with respect to such shares, certain shares acquired through
                reinvestment of dividends and capital gains distributions) and shares held by those
                employee benefit plans prior to July 28, 1997 have been designated Class D shares.
                Shares held before May 1, 1997 that have been designated Class B shares 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 14, 18
                and 21).
 
                - 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 14, 20 and
                21).
 
                - Class D shares are offered only to investors meeting an initial investment minimum of
                $5 million ($25 million for certain qualified plans) 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 14, 20 and 21).
- -------------------------------------------------------------------------------------------------------
DIVIDENDS AND   Dividends from net investment income are paid quarterly and distributions from net
CAPITAL GAINS   capital gains, if any, are paid at least once per year. The Fund may, however, determine
DISTRIBUTIONS   to retain all or part of any net long-term capital gains in any year for reinvestment.
                Dividends and capital gains distributions paid on shares of a 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 22 and 26).
- -------------------------------------------------------------------------------------------------------
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 25).
- -------------------------------------------------------------------------------------------------------
SPECIAL RISK    The net asset value of the Fund's shares will fluctuate with changes in the market value
CONSIDERATIONS  of its portfolio securities. The level of income payable to the investor will vary
                depending upon the market allocation determined by the Fund's Investment Manager and
                with various market determinants such as interest rates. The Fund may make various
                investments and may engage in various investment strategies including option and futures
                transactions, when-issued and delayed delivery securities and forward commitments, when,
                as and if issued securities, foreign securities and repurchase agreements (pages 8-13).
                The Fund is a non-diversified investment company and, as such, is not subject to the
                diversification requirements of the Investment Company Act of 1940, as amended (see page
                13).
</TABLE>
 
- --------------------------------------------------------------------------------
 
  THE ABOVE IS QUALIFIED IN ITS ENTIRETY BY THE DETAILED INFORMATION APPEARING
              ELSEWHERE IN THIS PROSPECTUS AND IN 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 July 31, 1998.
 
<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 (5).............................................................   0.54%       0.54%     0.54%       0.54%
12b-1 Fees (6) (7)..............................................................   0.24%       0.88%     1.00%         None
Other Expenses (5)..............................................................   0.12%       0.12%     0.12%       0.12%
Total Fund Operating Expenses...................................................   0.90%       1.54%     1.66%       0.66%
</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) MANAGEMENT FEES AND OTHER EXPENSES ARE BASED ON THE FUND'S ACTUAL AGGREGATE
    EXPENSES.
(6) 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").
(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% DISTRIBUTION FEE (SEE "PURCHASE OF FUND
    SHARES--ALTERNATIVE PURCHASE ARRANGEMENTS").
 
<TABLE>
<CAPTION>
EXAMPLES                                            1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                                    ------   -------   -------   --------
<S>                                                 <C>      <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.......................................   $61       $80       $100      $157
    Class B.......................................   $66       $79       $104      $183
    Class C.......................................   $27       $52       $90       $197
    Class D.......................................   $ 7       $21       $37       $ 82
 
You would pay the following expenses on the same
 $1,000 investment assuming no redemption at the
 end of the period:
    Class A.......................................   $61       $80       $100      $157
    Class B.......................................   $16       $49       $84       $183
    Class C.......................................   $17       $52       $90       $197
    Class D.......................................   $ 7       $21       $37       $ 82
</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.
 
4
<PAGE>
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
The following ratios and per share data for a share of beneficial interest
outstanding throughout each period have been audited by PricewaterhouseCoopers
LLP, independent accountants. The financial highlights should be read in
conjunction with the financial statements, the notes thereto and the unqualified
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.
<TABLE>
<CAPTION>
                                                                  FOR THE YEAR ENDED JULY 31,
                            -------------------------------------------------------------------------------------------------------
CLASS B SHARES                1998++     1997**++      1996        1995       1994       1993        1992        1991       1990
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
 
<S>                         <C>         <C>         <C>         <C>         <C>        <C>        <C>         <C>         <C>
PER SHARE OPERATING
 PERFORMANCE:
Net asset value, beginning
 of period................   $   18.75   $   16.02   $   15.87   $   14.43  $   14.59  $   14.39   $   13.09   $   11.65  $   11.37
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
Net investment income.....        0.24        0.39        0.30        0.34       0.30       0.26        0.27        0.27       0.23
Net realized and
 unrealized gain..........        2.06        4.10        1.43        1.86       0.22       0.81        1.27        1.50       0.55
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
Total from investment
 operations...............        2.30        4.49        1.73        2.20       0.52       1.07        1.54        1.77       0.78
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
Less dividends and
 distributions from:
  Net investment income...       (0.31)      (0.36)      (0.32)      (0.29)     (0.26)     (0.31)      (0.24)      (0.26)     (0.29)
  Net realized gain.......       (0.51)      (1.40)      (1.26)      (0.47)     (0.42)     (0.56)     --           (0.07)     (0.21)
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
Total dividends and
 distributions............       (0.82)      (1.76)      (1.58)      (0.76)     (0.68)     (0.87)      (0.24)      (0.33)     (0.50)
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
Net asset value, end of
 period...................   $   20.23   $   18.75   $   16.02   $   15.87  $   14.43  $   14.59   $   14.39   $   13.09  $   11.65
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
                            ----------  ----------  ----------  ----------  ---------  ---------  ----------  ----------  ---------
 
TOTAL INVESTMENT
 RETURN+..................       12.77%      29.73%      11.47%      16.05%      3.53%      7.59%      11.88%      15.67%      7.21%
 
RATIOS TO AVERAGE NET
 ASSETS:
Expenses..................        1.54%       1.56%       1.58%       1.63%      1.62%      1.62%       1.63%       1.59%      1.53%
Net investment income.....        1.24%       2.29%       1.88%       2.35%      2.03%      1.90%       2.19%       2.37%      2.39%
 
SUPPLEMENTAL DATA:
Net assets, end of period,
 in millions..............      $1,659      $1,541      $1,259        $878       $806       $783        $441        $238       $196
Portfolio turnover rate...          92%        158%        174%        179%        90%        98%         79%        140%       101%
 
<CAPTION>
                             FOR THE PERIOD
                            OCTOBER 31, 1988*
                                 THROUGH
CLASS B SHARES                JULY 31, 1989
                            -----------------
<S>                         <C>
PER SHARE OPERATING
 PERFORMANCE:
Net asset value, beginning
 of period................       $ 9.45
                                 ------
Net investment income.....         0.38
Net realized and
 unrealized gain..........         1.84
                                 ------
Total from investment
 operations...............         2.22
                                 ------
Less dividends and
 distributions from:
  Net investment income...        (0.30)
  Net realized gain.......      --
                                 ------
Total dividends and
 distributions............        (0.30)
                                 ------
Net asset value, end of
 period...................       $11.37
                                 ------
                                 ------
TOTAL INVESTMENT
 RETURN+..................        23.76%(1)
RATIOS TO AVERAGE NET
 ASSETS:
Expenses..................         0.97%(2)(3)
Net investment income.....         6.00%(2)(3)
SUPPLEMENTAL DATA:
Net assets, end of period,
 in millions..............          $48
Portfolio turnover rate...           70%(1)
</TABLE>
 
- -------------
 * COMMENCEMENT OF OPERATIONS.
 
** PRIOR TO JULY 28, 1997, THE FUND ISSUED ONE CLASS OF SHARES. ALL SHARES OF
   THE FUND HELD PRIOR TO THAT DATE, OTHER THAN SHARES WHICH WERE PURCHASED
   PRIOR TO NOVEMBER 8, 1989 (AND WITH RESPECT TO SUCH SHARES, CERTAIN SHARES
   ACQUIRED THROUGH REINVESTMENT OF DIVIDENDS AND CAPITAL GAINS DISTRIBUTIONS
   (COLLECTIVELY THE "OLD SHARES")) AND SHARES HELD BY CERTAIN EMPLOYEE BENEFIT
   PLANS ESTABLISHED BY DEAN WITTER REYNOLDS INC., AND ITS AFFILIATE, SPS
   TRANSACTION SERVICES, INC., HAVE BEEN DESIGNATED CLASS B SHARES. THE OLD
   SHARES AND SHARES HELD BY THOSE EMPLOYEE BENEFIT PLANS PRIOR TO JULY 28, 1997
   HAVE BEEN DESIGNATED CLASS D SHARES.
 
 ++ THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
    OUTSTANDING DURING THE PERIOD.
 
 + 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.
 
(3) IF THE FUND HAD BORNE ALL ITS EXPENSES THAT WERE ASSUMED OR WAIVED BY THE
    INVESTMENT MANAGER, THE ABOVE ANNUALIZED EXPENSE AND NET INVESTMENT INCOME
    RATIOS WOULD HAVE BEEN 1.48% AND 5.48%, RESPECTIVELY.
 
                                                                               5
<PAGE>
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                         FOR THE PERIOD
                                       FOR THE YEAR      JULY 28, 1997*
                                          ENDED             THROUGH
CLASS A SHARES                       JULY 31, 1998++    JULY 31, 1997++
                                     ----------------   ----------------
<S>                                  <C>                <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of
 period............................      $ 18.75            $ 18.40
                                          ------             ------
Net investment income..............         0.36               0.01
Net realized and unrealized gain...         2.06               0.34
                                          ------             ------
Total from investment operations...         2.42               0.35
                                          ------             ------
Less dividends and distributions
 from:
  Net investment income............        (0.43)           --
  Net realized gain................        (0.51)           --
                                          ------             ------
Total dividends and
 distributions.....................        (0.94)           --
                                          ------             ------
Net asset value, end of period.....      $ 20.23             $18.75
                                          ------             ------
                                          ------             ------
TOTAL INVESTMENT RETURN+...........        13.48%              1.90%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses...........................         0.91%              0.92%(2)
Net investment income..............         1.85%              5.06%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in
 thousands.........................      $34,891                $79
Portfolio turnover rate............           92%               158%
 
CLASS C SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of
 period............................      $ 18.75            $ 18.40
                                          ------             ------
Net investment income..............         0.21               0.01
Net realized and unrealized gain...         2.06               0.34
                                          ------             ------
Total from investment operations...         2.27               0.35
                                          ------             ------
Less dividends and distributions
 from:
  Net investment income............        (0.32)           --
  Net realized gain................        (0.51)           --
                                          ------             ------
Total dividends and
 distributions.....................        (0.83)           --
                                          ------             ------
Net asset value, end of period.....      $ 20.19            $ 18.75
                                          ------             ------
                                          ------             ------
TOTAL INVESTMENT RETURN+...........        12.66%              1.90%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses...........................         1.66%              1.67%(2)
Net investment income..............         1.08%              4.38%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in
 thousands.........................       $7,861               $114
Portfolio turnover rate............           92%               158%
</TABLE>
 
- -------------
 * THE DATE SHARES WERE FIRST ISSUED.
 ++ THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
    OUTSTANDING DURING THE PERIOD.
 
 + 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>
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                         FOR THE PERIOD
                                       FOR THE YEAR      JULY 28, 1997*
                                          ENDED             THROUGH
CLASS D SHARES                       JULY 31, 1998++    JULY 31, 1997++
                                     ----------------   ----------------
<S>                                  <C>                <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of
 period............................      $ 18.75            $ 18.40
                                          ------             ------
Net investment income..............         0.41               0.01
Net realized and unrealized gain...         2.06               0.34
                                          ------             ------
Total from investment operations...         2.47               0.35
                                          ------             ------
Less dividends and distributions
 from:
  Net investment income............        (0.46)           --
  Net realized gain................        (0.51)           --
                                          ------             ------
Total dividends and
 distributions.....................        (0.97)           --
                                          ------             ------
Net asset value, end of period.....      $ 20.25            $ 18.75
                                          ------             ------
                                          ------             ------
 
TOTAL INVESTMENT RETURN+...........        13.80%              1.90%(1)
 
RATIOS TO AVERAGE NET ASSETS:
Expenses...........................         0.66%              0.67%(2)
Net investment income..............         2.12%              5.40%(2)
 
SUPPLEMENTAL DATA:
Net assets, end of period, in
 thousands.........................      $67,797            $57,938
Portfolio turnover rate............           92%               158%
</TABLE>
 
- -------------
 * THE DATE SHARES WERE FIRST ISSUED. SHAREHOLDERS WHO HELD SHARES OF THE FUND
   PRIOR TO JULY 28, 1997 (THE DATE THE FUND CONVERTED TO A MULTIPLE CLASS SHARE
   STRUCTURE) SHOULD REFER TO THE FINANCIAL HIGHLIGHTS OF CLASS B TO OBTAIN THE
   HISTORICAL PER SHARE DATA AND RATIO INFORMATION OF THEIR SHARES.
 
 ++ THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
    OUTSTANDING DURING THE PERIOD.
 
 + CALCULATED BASED ON THE NET ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE
   PERIOD.
 
(1) NOT ANNUALIZED.
 
(2) ANNUALIZED.
 
                                                                               7
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
Morgan Stanley Dean Witter Strategist Fund (formerly named Dean Witter
Strategist Fund) (the "Fund") is an open-end, non-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 August 5, 1988.
 
    Morgan Stanley Dean Witter Advisors Inc. ("MSDW Advisors" 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 is a wholly-owned
subsidiary of Morgan Stanley Dean Witter & 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. The
Investment Manager, which was incorporated in July, 1992 under the name Dean
Witter InterCapital Inc., changed its name to Morgan Stanley Dean Witter
Advisors Inc. on June 22, 1998.
 
    MSDW Advisors and its wholly-owned subsidiary, Morgan Stanley Dean Witter
Services Company Inc. ("MSDW Services"), serve in various investment management,
advisory, management and administrative capacities to 101 investment companies,
28 of which are listed on the New York Stock Exchange, with combined assets of
approximately $105.9 billion as of August 31, 1998. The Investment Manager also
manages and advises portfolios of pension plans, other institutions and
individuals which aggregated approximately $4.1 billion at such date.
 
    The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs, manage the investment of the Fund's
assets and determine the allocations of the Fund's assets, including the placing
of orders for the purchase and sale of portfolio securities. MSDW Advisors has
retained MSDW Services to perform the aforementioned administrative services for
the Fund.
 
    The Fund's Trustees review the various services provided by or under the
direction of 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 at the annual rate
of 0.60% of the portion of the Fund's net assets not exceeding $500 million,
scaled down at various asset levels to 0.45% on the portion of the Fund's net
assets exceeding $2 billion. For the fiscal year ended July 31, 1998, the Fund
accrued total compensation to the Investment Manager amounting to 0.54% of the
Fund's average daily net assets and the total expenses of each Class amounted to
0.91%, 1.54%, 1.66% and 0.66% of the average daily net assets of Class A, Class
B, Class C and Class D, respectively.
 
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------
 
The investment objective of the Fund is to maximize the total return on its
investments. This is a fundamental policy and cannot be changed without the
approval of the Fund's shareholders. In seeking to achieve its objective, the
Fund actively allocates assets among the major asset categories of equity
securities, fixed-income securities and money market instruments. Total return
consists of current income (including dividends, interest and, in the case of
discounted instruments, discount accruals) and capital appreciation (including
realized and unrealized capital gains and losses). There can be no assurance
that the investment objective of the Fund will be achieved.
 
    The achievement of the Fund's investment objective depends upon the ability
of the Investment Manager to correctly assess the effects of economic and market
trends on different sectors of the market. The Investment Manager believes that
superior investment returns at lower risk are achievable by actively allocating
resources to the equity, debt and money market sectors of the market as opposed
to relying solely on just one market. At times, the equity market may hold a
higher potential return than the debt market and would warrant a higher asset
allocation. The reverse would be true when the bond market potential return is
higher. Short duration bonds and money market instruments can be used to soften
market declines when both bonds and equities are fully priced. Conserving
capital during declining markets can contribute to maximizing total return over
a longer period of time. In addition, the securities of companies within various
economic sectors may at times offer higher returns than other sectors and can
thus contribute to superior returns. Finally, the Investment Manager believes
that superior stock selection can also contribute to superior total return.
 
    To facilitate reallocation of the Fund's assets in accordance with the
Investment Manager's views as to shifts in the marketplace, the Investment
Manager employs transactions in futures contracts and options thereon. For
example, if the Investment Manager believes that a ten percent increase in that
portion of the Fund's assets invested in fixed-income securities and a
concomitant decrease in that portion of the Fund's assets invested in equity
securities is timely, the Fund might purchase interest rate futures, such as
Treasury bond futures, and sell stock index futures, such as the Standard &
Poor's Corporation ("S&P") 500 Stock Index futures, in equivalent amounts. The
utilization of futures transactions, rather than the purchase and sale of equity
and fixed-income securities, increases the speed and efficacy of the Fund's
asset reallocations. See below for a discussion of futures transactions.
 
8
<PAGE>
    Within the equity sector, the Investment Manager actively allocates funds to
those economic sectors expected to benefit from major trends and to individual
stocks which are deemed to have superior investment potential. The Fund may
purchase equity securities (including convertible debt obligations and
convertible preferred stock) sold on the New York, American and other stock
exchanges and in the over-the-counter market. In addition, the Fund may purchase
and sell warrants and purchase and write listed and over-the-counter options on
individual stocks and stock indexes to hedge against adverse price movements in
its equity portfolio and to increase its total return through the receipt of
premium income. The Fund may also purchase and sell stock index futures and
options thereon to hedge against adverse price movements in its equity portfolio
and to facilitate asset reallocations into and out of the equity area.
 
    Within the fixed-income sector of the market, the Investment Manager seeks
to maximize the return on its investments by adjusting maturities and coupon
rates as well as by exploiting yield differentials among different types of
investment grade bonds. Fixed-income securities in which the Fund may invest are
short-term to intermediate (one to five year maturities) and intermediate to
long-term (greater than five year maturities) debt securities and preferred
stocks, including U.S. Government securities (securities issued or guaranteed as
to principal and interest by the United States or its agencies and
instrumentalities) and corporate securities which are rated at the time of
purchase Baa or better by Moody's Investors Service, Inc. ("Moody's") (while
bonds rated Baa by Moody's are considered investment grade, they have
speculative characteristics as well) or BBB or better by S&P, or which, if
unrated, are deemed to be of comparable quality by the Fund's Trustees (a
description of corporate bond ratings is contained in the Appendix to the
Statement of Additional Information). U.S. Government securities which may be
purchased include zero coupon securities. In addition, the Fund may purchase and
write listed and over-the-counter options on fixed-income securities to hedge
against adverse price movements in its fixed-income portfolio and to increase
its total return through the receipt of premium income. The Fund may also
purchase and sell interest rate futures and options thereon to hedge against
adverse price movements in its fixed-income portfolio and to facilitate asset
reallocations into and out of the fixed-income area.
 
    Within the money market sector of the market, the Investment Manager seeks
to maximize returns by exploiting spreads among short-term instruments. The
money market portion of the Fund's portfolio will contain short-term (maturities
of up to thirteen months) fixed-income securities, issued by private and
governmental institutions. Such securities may include: U.S. Government
securities; bank obligations; Eurodollar certificates of deposit issued by
foreign branches of domestic banks; obligations of savings institutions; fully
insured certificates of deposit; and commercial paper rated within the two
highest grades by S&P or the highest grade by Moody's or, if not rated, issued
by a company having an outstanding debt issue rated at least AA by S&P or Aa by
Moody's. For a discussion of the risks of investing in Eurodollar certificates
of deposit, see "Risk Considerations--Foreign Securities" below.
 
FOREIGN SECURITIES.  The Fund may invest up to 20% of its total assets in
securities issued by foreign governments and other foreign issuers and in
foreign currency issues of domestic issuers, but not more than 10% of its total
assets in such securities, whether issued by a foreign or domestic issuer, which
are denominated in foreign currency. With regard to foreign fixed-income
securities, the Investment Manager believes that in many instances such
securities may provide higher yields than similar securities of domestic
issuers. When purchasing foreign securities, the Fund will generally enter into
foreign currency exchange transactions or forward foreign exchange contracts to
facilitate settlement. The Fund will utilize forward foreign exchange contracts
in these instances as an attempt to limit the effect of changes in the
relationship between the U.S. dollar and the foreign currency during the period
between the trade date and settlement date for the transaction. For a discussion
of the risks of investing in foreign securities, see "Risk Considerations"
below.
 
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 debt 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. For a discussion of the risks of investing in repurchase agreements,
see "Risk Considerations" below.
 
PRIVATE PLACEMENTS.  The Fund may invest 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. These securities are generally referred to as
private placements or restricted securities. 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 is limited by the Fund's investment
restrictions to 10% of the Fund's total assets. For a discussion of the risks of
investing in private placements, see "Risk Considerations" below.
 
INVESTMENT IN REAL ESTATE INVESTMENT TRUSTS.  The Fund may invest in real estate
investment trusts, which pool
 
                                                                               9
<PAGE>
investors' funds for investments primarily in commercial real estate properties.
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 a real estate
investment trust, the Fund would bear its ratable share of the real estate
investment trust'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 real
estate investment trusts.
 
OPTIONS.  The Fund also may purchase and sell (write) call and put options on
debt and equity securities which are listed on Exchanges or are written in
over-the-counter transactions ("OTC options"). Listed options, which are
currently listed on several different Exchanges, are issued by the Options
Clearing Corporation ("OCC"). Ownership of a listed call option gives the Fund
the right to buy from the OCC the underlying security covered by the option at
the stated exercise price (the price per unit of the underlying security) by
filing an exercise notice prior to the expiration date of the option. The writer
(seller) of the option would then have the obligation to sell to the OCC the
underlying security at that exercise price prior to the expiration date of the
option, regardless of its then current market price. Ownership of a listed put
option would give the Fund the right to sell the underlying security to the OCC
at the stated exercise price.
 
OTC OPTIONS.  OTC options are purchased from or sold (written) to dealers or
financial institutions which have entered into direct agreements with the Fund.
With OTC options, such variables as expiration date, exercise price and premium
will be agreed upon between the Fund and the transacting dealer, without the
intermediation of a third party such as the OCC. The Fund will engage in OTC
option transactions only with primary U.S. Government securities dealers
recognized by the Federal Reserve Bank of New York.
 
COVERED CALL WRITING.  The Fund is permitted to write covered call options on
portfolio securities, without limit, in order to aid it in achieving its
investment objective. As a writer of a call option, the Fund has the obligation,
upon notice of exercise of the option, to deliver the security underlying the
option (certain listed call options written by the Fund will be exercisable by
the purchaser only on a specific date). See "Options and Futures Transactions--
Covered Call Writing" in the Statement of Additional Information.
 
COVERED PUT WRITING.  As a writer of covered put options, the Fund incurs an
obligation to buy the security underlying the option from the purchaser of the
put at the option's exercise price at any time during the option period. The
Fund will write put options for two purposes: (1) to receive the premiums paid
by purchasers; and (2) when the Investment Manager wishes to purchase the
security underlying the option at a price lower than its current market price,
in which case it will write the covered put at an exercise price reflecting the
lower purchase price sought. See "Options and Futures Transactions--Covered Put
Writing" in the Statement of Additional Information.
 
PURCHASING CALL AND PUT OPTIONS.  The Fund may invest up to 5% of its total
assets in the purchase of put and call options on securities and stock indexes.
The Fund may purchase call options only in order to close out a covered call
position. The Fund may purchase put options on securities which it holds (or has
the right to acquire) 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.
 
STOCK INDEX OPTIONS.  The Fund may purchase and write options on stock indexes.
Options on stock indexes are similar to options on stock except that, rather
than the right to take or make delivery of stock at a specified price, an option
on a stock index gives the holder the right to receive, upon exercise of the
option, an amount of cash if the closing level of the stock index upon which the
option is based is greater than, in the case of a call, or less than, in the
case of a put, the exercise price of the option. See "Stock Index Options" and
"Risks of Options on Indexes" in the Statement of Additional Information.
 
FUTURES CONTRACTS.  The Fund may purchase and sell interest rate and stock index
futures contracts ("futures contracts") that are traded on U.S. commodity
exchanges on such underlying securities as U.S. Treasury bonds, notes, and bills
and GNMA Certificates ("interest rate futures") and such indexes as the S&P 500
Index and the New York Stock Exchange Composite Index ("stock index futures")
and the Moody's Investment-Grade Corporate Bond Index ("bond index futures"). 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. The Fund will
purchase or sell interest rate futures contracts and bond index futures
contracts for the purpose of hedging its fixed-income portfolio (or anticipated
portfolio) securities against changes in prevailing interest rates. The Fund
will purchase or sell stock index futures contracts for the purpose of hedging
its equity portfolio (or anticipated portfolio) securities against changes in
their prices. As noted above, the Fund may also engage in futures transactions
to facilitate reallocation of the Fund's assets. The Fund also may purchase and
write call and put options on futures contracts and enter into closing
transactions with respect to such options to terminate an existing position. See
"Options and
 
10
<PAGE>
Futures Transactions--Futures Contracts" and "Options on Futures Contracts" in
the Statement of Additional Information.
 
    For a discussion of the risks of options and futures transactions, see "Risk
Considerations" below and "Options and Futures Transactions" in the Statement of
Additional Information.
 
                                  ------------
 
    The Fund may purchase securities on a when-issued or delayed delivery basis,
may purchase or sell securities on a forward commitment basis, may purchase
securities on a "when, as and if issued" basis, may lend its portfolio
securities, and may enter into reverse repurchase agreements, as discussed under
"Risk Considerations" below.
 
RISK CONSIDERATIONS
 
The net asset value of the Fund's shares will fluctuate with changes in the
market value of its portfolio securities. The market value of the Fund's
portfolio securities will increase or decrease due to a variety of economic,
market or political factors which cannot be predicted. The level of income
payable to the investor will vary depending upon the market allocation
determined by the Investment Manager and with various determinants such as
interest rates.
 
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 exchange between different currencies 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 Fund will incur costs in connection
with conversions between various currencies.
 
    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. Finally, in the event of a
default of any foreign debt obligations, it may be more difficult for the Fund
to obtain or enforce a judgment against the issuers of such securities.
 
    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.
 
    Many European countries are about to adopt a single European currency, the
euro ("the Euro Conversion"). The consequences of the Euro Conversion for
foreign exchange rates, interest rates and the value of European securities
eligible for purchase by the Fund are presently unclear. Such consequences may
adversely affect the value and/or increase the volatility of securities held by
the Fund.
 
REPURCHASE AGREEMENTS.  While repurchase agreements involve certain risks not
associated with direct investments in debt securities, the Fund follows
procedures designed to minimize those risks. These procedures include effecting
repurchase transactions only with large, well-capitalized and well-established
financial institutions whose financial condition will be continually monitored
by the Investment Manager subject to procedures established by the Board of
Trustees of the Fund. In addition, the value of the collateral underlying the
repurchase agreement will be at least equal to the repurchase price, including
any accrued interest earned on the repurchase agreement. In the event of a
default or bankruptcy by a selling financial institution, the Fund will seek to
liquidate such collateral. However, the exercising of the Fund's right to
liquidate such collateral
 
                                                                              11
<PAGE>
could involve certain costs or delays and, to the extent that proceeds from any
sale upon a default of the obligation to repurchase were less than the
repurchase price, the Fund could suffer a loss. The Fund may not invest in
repurchase agreements that do not mature within seven days if any such
investment, together with any other illiquid assets held by the Fund, amounts to
more than 10% of its total assets.
 
PRIVATE PLACEMENTS.  Limitations on the resale of private placements 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. In the case of restricted securities determined to
be "liquid" pursuant to Rule 144A under the Securities Act, the Fund's
illiquidity could increase if qualified institutional buyers become unavailable.
 
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, delayed delivery or forward commitment basis may
increase the volatility of the Fund's net asset value.
 
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 the Fund's net asset value.
 
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 will 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.
 
    The extent to which the Fund may enter into transactions involving options
and futures contracts may be limited by the Internal Revenue Code's requirements
for qualification as a regulated investment company and the Fund's intention to
qualify as such. See "Dividends, Distributions and Taxes."
 
    While the futures contracts and options transactions to be engaged in by the
Fund for the purpose of hedging the Fund's portfolio securities are not
speculative in nature, there are risks inherent in the use of 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 may arise in employing futures contracts to protect against the price
volatility of portfolio securities is that the prices of securities and indexes
subject to futures contracts (and thereby the futures contract prices) may
correlate imperfectly with the behavior of the cash prices of the Fund's
portfolio securities. See the Statement of Additional Information for further
discussion of such risks.
 
    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.
 
REVERSE REPURCHASE AGREEMENTS.  The Fund may enter into reverse repurchase
agreements, which involve sales by the Fund of portfolio assets concurrently
with an agreement by the Fund to repurchase the same assets at a later date at a
fixed price.
 
    Reverse repurchase agreements involve the risk that the market value of the
securities the Fund is obligated to repurchase under the agreement may decline
below the repurchase price. In the event the buyer of securities under a reverse
repurchase agreement files for bankruptcy or becomes insolvent, the Fund's use
of the proceeds of the agreement may be restricted pending a determination by
the other party, or its trustee or receiver, whether to enforce the Fund's
obligation to repurchase the securities. Reverse repurchase agreements are
considered borrowings by the Fund and for purposes other than meeting
redemptions may not exceed 5% of the Fund's total assets.
 
LENDING OF PORTFOLIO SECURITIES.  Consistent with applicable regulatory
requirements, the Fund may lend its portfolio securities to brokers, dealers and
other financial
 
12
<PAGE>
institutions, provided that such loans are callable at any time by the Fund
(subject to certain notice provisions described in the Statement of Additional
Information), and are at all times secured by cash or money market instruments,
which are maintained in a segregated account pursuant to applicable regulations
and that are equal to at least the market value, determined daily, of the loaned
securities. As with any extensions of credit, there are risks of delay in
recovery and in some cases even loss of rights in the collateral should the
borrower of the securities fail financially. However, loans of portfolio
securities will only be made to firms deemed by the Investment Manager to be
creditworthy and when the income which can be earned from such loans justifies
the attendant risks.
 
NON-DIVERSIFIED STATUS.  The Fund is a non-diversified investment company and,
as such, is not subject to the diversification requirements of the Investment
Company Act of 1940 (the "Act"). As a non-diversified investment company, the
Fund may invest a greater portion of its assets in the securities of a single
issuer and thus is subject to greater exposure to risks such as a decline in the
credit rating of that issuer. However, the Fund anticipates that it will qualify
as a regulated investment company under the federal income tax laws and, if so
qualified, will be subject to the applicable diversification requirements of the
Internal Revenue Code (the "Code"). As a regulated investment company under the
Code, the Fund may not, as of the end of any of its fiscal quarters, have
invested more than 25% of its total assets in the securities of any one issuer
(including a foreign government), or as to 50% of its total assets, have
invested more than 5% of its total assets in the securities of a single issuer.
 
YEAR 2000.  The investment management services provided to the Fund by the
Investment Manager and the services provided to shareholders by the Distributor
and the Transfer Agent depend on the smooth functioning of their computer
systems. Many computer software systems in use today cannot recognize the year
2000, but revert to 1900 or some other date, due to the manner in which dates
were encoded and calculated. That failure could have a negative impact on the
handling of securities trades, pricing and account services. The Investment
Manager, the Distributor and the Transfer Agent have been actively working on
necessary changes to their own computer systems to prepare for the year 2000 and
expect that their systems will be adapted before that date, but there can be no
assurance that they will be successful, or that interaction with other
non-complying computer systems will not impair their services at that time.
 
    In addition, it is possible that the markets for securities in which the
Fund invests may be detrimentally affected by computer failures throughout the
financial services industry beginning January 1, 2000. Improperly functioning
trading systems may result in settlement problems and liquidity issues. In
addition, corporate and governmental data processing errors may result in
production problems for individual companies and overall economic uncertainties.
Earnings of individual issuers will be affected by remediation costs, which may
be substantial and may be reported inconsistently in U.S. and foreign financial
statements. Accordingly, the Fund's investments may be adversely affected.
 
    For additional risk disclosure, please refer to the "Investment Objective
and Policies" section of the Prospectus and to the "Investment Practices and
Policies" section of the Statement of Additional Information.
 
PORTFOLIO MANAGEMENT
 
The Fund's portfolio is actively managed by the 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., Morgan
Stanley & Co. Incorporated and other broker-dealers that are affiliates of the
Investment Manager, and the Investment Manager's own analysis of factors it
deems relevant. The Fund's portfolio is managed within MSDW Advisors' Growth and
Income Group, which manages 25 funds and fund portfolios, with approximately
$29.7 billion in assets as of August 31, 1998. Mark Bavoso, Senior Vice
President of MSDW Advisors and a member of MSDW Advisors' Growth and Income
Group, has been the primary portfolio manager of the Fund since January, 1994,
and has been a portfolio manager at MSDW Advisors for over five years.
 
    Pursuant to an order of the Securities and Exchange Commission, the Fund may
effect principal transactions in certain money market instruments with Dean
Witter Reynolds Inc. In addition, the Fund may incur brokerage commissions on
transactions conducted through Dean Witter Reynolds Inc., Morgan Stanley & Co.
Incorporated and other brokers and dealers that are affiliates of MSDW Advisors.
 
    It is not anticipated that the portfolio trading engaged in by the Fund will
result in its portfolio turnover rate exceeding 200% in any one year. The Fund
will incur underwriting discount costs (on underwritten securities) and
brokerage costs commensurate with its portfolio turnover rate, and thus a higher
level (over 100%) of portfolio transactions will increase the Fund's overall
brokerage expenses. See "Dividends, Distributions and Taxes" for a discussion of
the tax implications of the Fund's transactions. A more extensive discussion of
the Fund's portfolio brokerage policies is set forth in the Statement of
Additional Information.
 
    Except as specifically noted, all investment objectives, policies and
practices discussed above are not fundamental policies of the Fund and, as such,
may be changed without shareholder approval.
 
                                                                              13
<PAGE>
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
The investment restrictions listed below are among the restrictions which have
been adopted by the Fund as fundamental policies. Under the 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 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. 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.
 
        2. 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.
 
        3. Purchase or sell commodities or commodities contracts except that the
    Fund may purchase or write interest rate and stock and bond index futures
    contracts and related options thereon.
 
        4. Pledge its assets or assign or otherwise encumber them except to
    secure permitted borrowings. (For the purpose of this restriction,
    collateral arrangements with respect to the writing of options and
    collateral arrangements with respect to initial or variation margin for
    futures are not deemed to be pledges of assets.)
 
        5. Purchase securities on margin (but the Fund may obtain short-term
    loans as are necessary for the clearance of transactions). The deposit or
    payment by the Fund of initial or variation margin in connection with
    futures contracts or related options thereon is not considered the purchase
    of a security on margin.
 
    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
- --------------------------------------------------------------------------------
 
GENERAL
 
The Fund offers each class of its its shares for sale to the public on a
continuous basis. Pursuant to a Distribution Agreement between the Fund and
Morgan Stanley Dean Witter Distributors Inc. ("MSDW Distributors" or the
"Distributor"), an affiliate of the Investment Manager, shares of the Fund are
distributed by the Distributor and offered by Dean Witter Reynolds Inc. ("DWR"),
a selected dealer and subsidiary of Morgan Stanley Dean Witter & Co., and other
dealers who have entered into selected dealer agreements with the Distributor
("Selected Broker-Dealers"). It is anticipated that DWR will undergo a change of
corporate name which is expected to incorporate the brand name of "Morgan
Stanley Dean Witter," pending approval of various regulatory authorities. 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 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 ($25 million for certain qualified plans), 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 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 ($25 million
for certain qualified plans) or more and to certain other limited categories of
investors. For the purpose of meeting the minimum $5 million (or $25 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 Morgan Stanley Dean Witter Funds that are
multiple class funds ("Morgan Stanley Dean Witter Multi-Class Funds") and shares
of Morgan Stanley Dean Witter Funds sold with a
 
14
<PAGE>
front-end sales charge ("FSC Funds") and concurrent investments in Class D
shares of the Fund and other Morgan Stanley Dean Witter Multi-Class Funds will
be aggregated. Subsequent purchases of $100 or more may be made by sending a
check, payable to Morgan Stanley Dean Witter Strategist Fund, directly to Morgan
Stanley Dean Witter Trust FSB (the "Transfer Agent" or "MSDW Trust") at P.O. Box
1040, Jersey City, NJ 07303 or by contacting a Morgan Stanley Dean Witter
Financial Advisor or other Selected Broker-Dealer representative. 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 at least $1,000 within the first twelve months. The
minimum initial purchase in the case of an "Education IRA" is $500, if the
Distributor has reason to believe that additional investments will increase the
investment in the account to $1,000 within three years. In the case of
investments pursuant to (i) Systematic Payroll Deduction Plans (including
Individual Retirement Plans), (ii) the MSDW Advisors mutual fund asset
allocation program and (iii) fee-based programs approved by the Distributor,
pursuant to which participants pay an asset based fee for services in the nature
of investment advisory, administrative and/or brokerage services, the Fund, in
its discretion, may accept investments without regard to any minimum amounts
which would otherwise be required, provided, in the case of Systematic Payroll
Deduction Plans, that the Distributor 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. 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 various types of non-cash
compensation as special sales incentives, including trips, educational and/or
business seminars and merchandise. 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).
 
    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 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 (i) 1.0%
of the lesser of: (a) the average daily aggregate gross sales of the Fund's
Class B shares since the implementation of the 12b-1 Plan on November 8, 1989
(not including reinvestments of dividends or capital gains distributions), less
the average daily aggregate net asset value of
 
                                                                              15
<PAGE>
the Fund's Class B shares redeemed since the implementation of the 12b-1 Plan
upon which a CDSC has been imposed or waived, or (b) the average daily net
assets of Class B attributable to shares issued, net of related shares redeemed,
since implementation of the 12b-1 Plan, plus (ii) 0.25% of the average daily net
assets of Class B attributable to shares issued, net of related shares redeemed,
prior to implementation of the 12b-1 Plan. 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 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 (or $25 million) minimum
investment amount for Class D shares, holdings of Class A shares in all Morgan
Stanley Dean Witter Multi-Class Funds, shares of FSC Funds and shares of Morgan
Stanley 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>
                                                   CONVERSION
  CLASS          SALES CHARGE         12b-1 FEE      FEATURE
<C>        <S>                        <C>        <C>
    A      Maximum 5.25% initial        0.25%          No
           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% CDSC during     1.0%     B shares
           the first year decreasing             convert to A
           to 0 after six years                  shares
                                                 automatically
                                                 after
                                                 approximately
                                                 ten years
    C      1.0% CDSC during first       1.0%           No
           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.
 
16
<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            PUBLIC OFFERING     PERCENTAGE OF
    SINGLE TRANSACTION             PRICE         AMOUNT 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 Morgan Stanley 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 Morgan Stanley Dean Witter Multi-Class Funds and the
shares of the FSC Funds will be at their 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 Morgan Stanley Dean Witter Funds
previously purchased at a price including a front-end sales charge (including
shares of the Fund and other Morgan Stanley 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 that, together
with the current investment amount, is equal to at least $5 million ($25 million
for certain qualified plans), 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.
 
                                                                              17
<PAGE>
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 Morgan Stanley 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 Morgan Stanley 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 MSDW Trust (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, administrative and/or brokerage services
(such investments are subject to all of the terms and conditions of such
programs, which may include termination fees, mandatory redemption upon
termination and such other circumstances as specified in the programs'
agreements, and restrictions on transferability of Fund shares);
 
    (3) employer-sponsored 401(k) and other plans qualified under Section 401(a)
of the Internal Revenue Code ("Qualified Retirement Plans") with at least 200
eligible employees and for which MSDW Trust serves as Trustee or DWR's
Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement;
 
    (4) Qualified Retirement Plans for which MSDW Trust serves as Trustee or
DWR's Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement 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 Morgan Stanley Dean Witter Financial
Advisor who joined Morgan Stanley Dean Witter from another investment firm
within six months prior to 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 Financial Advisor'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 Qualified Retirement Plans, three years)
preceding the redemption. In addition, Class B shares are subject to an annual
12b-1 fee of (i) 1.0% of the lesser of: (a) the average daily aggregate gross
sales of the Fund's Class B shares since the implementation of the 12b-1 Plan on
November 8, 1989 (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 implementation of the 12b-1 Plan upon which a
CDSC has been imposed or waived, or (b) the average daily net assets of Class B
attributable to shares issued, net of related shares redeemed, since
implementation of the 12b-1 Plan, plus (ii) 0.25% of the average daily net
assets of Class B attributable to shares issued, net of related shares redeemed,
prior to implementation of the 12b-1 Plan.
 
    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
 
18
<PAGE>
how long the shares have been held, as set forth in the following table:
 
<TABLE>
<CAPTION>
          YEAR SINCE PURCHASE             CDSC AS A PERCENTAGE
              PAYMENT MADE                 OF 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 purchased on or after July 28,
1997 by Qualified Retirement Plans for which MSDW Trust serves as Trustee or
DWR's Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement, 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 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
              PAYMENT MADE                 OF 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 Qualified Retirement 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 Qualified Retirement 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 Morgan Stanley
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;
 
    (3) all redemptions of shares held for the benefit of a participant in a
Qualified Retirement Plan which offers investment companies managed by the
Investment Manager or its subsidiary, MSDW Services, as self-directed investment
alternatives and for which MSDW Trust serves as Trustee or DWR's Retirement Plan
Services serves as recordkeeper pursuant to a written Recordkeeping Services
Agreement ("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; and
 
    (4) certain redemptions pursuant to the Fund's Systematic Withdrawal Plan
(see "Shareholder Services--Systematic Withdrawal Plan").
 
    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 (other than shares which were purchased prior to November 8, 1989 (and,
with respect to such shares, including such proportion of shares acquired
through reinvestment of dividends and capital gains distributions as the total
number of shares acquired prior to such date bears to the total number of Fund
shares purchased and owned by a shareholder (collectively, the "Old Shares"))
and shares held by certain employee benefit plans established by DWR and its
affiliate, SPS Transaction Services, Inc.) have been designated Class B shares.
Shares held before May 1, 1997 that have been designated Class B shares 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
 
                                                                              19
<PAGE>
values of the shares of the two Classes on the conversion date, which will be
approximately ten (10) years after the date of the 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 Qualified Retirement Plan for which MSDW Trust
serves as Trustee or DWR's Retirement Plan Services serves as recordkeeper
pursuant to a written Recordkeeping Services Agreement, 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 Morgan Stanley 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 Morgan Stanley 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.
 
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 applicable 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 ($25 million for Qualified
Retirement Plans for which MSDW Trust serves as Trustee or DWR's Retirement Plan
Services serves as recordkeeper pursuant to a written Recordkeeping Services
Agreement) and the following categories of investors: (i) investors
participating in the MSDW Advisors 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,
administrative and/or brokerage services (subject to all of the terms and
conditions of such programs referred to in (i) and (ii) above, which may include
termination fees, mandatory redemption upon termination and such other
circumstances as specified in the programs' agreements, 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; (vi)
investors who were shareholders of Dean Witter Retirement Series on September
11, 1998 (with respect to additional purchases for their former Dean Witter
Retirement Series accounts); and (vii) 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 (or $25 million) minimum initial
investment to qualify to purchase Class D shares may satisfy that requirement
 
20
<PAGE>
by investing that amount in a single transaction in Class D shares of the Fund
and other Morgan Stanley 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 (or $25 million) minimum investment
amount, holdings of Class A shares in all Morgan Stanley Dean Witter Multi-Class
Funds, shares of FSC Funds and shares of Morgan Stanley 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 (i) 1.0% of the lesser of: (a) the average daily
aggregate gross sales of the Fund's Class B shares since the implementation of
the Plan on November 8, 1989 (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 implementation of the 12b-1 Plan
upon which a CDSC has been imposed or waived, or (b) the average daily net
assets of Class B attributable to shares issued, net of related shares redeemed,
since implementation of the 12b-1 Plan, plus (ii) 0.25% of the average daily net
assets of Class B attributable to shares issued, net of related shares redeemed,
prior to implementation of the 12b-1 Plan. 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 Morgan Stanley Dean Witter
Financial Advisors 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 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 July 31, 1998, Class B shares of the Fund accrued
payments under the Plan amounting to $13,861,548, which amount is equal to 0.88%
of the average daily net assets of Class B for the fiscal year. These payments
were calculated pursuant to clauses (i)(a) and (ii) of the compensation formula
under the Plan. For the fiscal year ended July 31, 1998, Class A and Class C
shares of the Fund accrued payments under the Plan amounting to $47,227 and
$35,673, respectively, which amounts are equal to 0.24% and 1.0% of the average
daily net assets of Class A and Class C, respectively, for the fiscal year.
 
    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
$35,877,347 at July 31, 1998, which was equal to 2.16% of the net assets of
Class B on such date. Of this amount, $13,444,602 represents excess distribution
expenses of Dean Witter Managed Assets Trust, the net assets of which were
combined with those of the Fund on December 22, 1995 pursuant to an Agreement
and Plan of Reorganization. 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.
 
                                                                              21
<PAGE>
    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 Morgan Stanley Dean Witter Financial Advisors
and other Selected Broker-Dealer representatives at the time of sale may be
reimbursed in the subsequent calendar year. The Distributor has advised the Fund
that unreimbursed expenses representing a gross sales commission credited to
Morgan Stanley Dean Witter Financial Advisors and other Selected Broker-Dealer
representatives at the time of sale totalled $20,777 in the case of Class C at
December 31, 1997, which amount was equal to 0.79% of the net assets of Class C
on such date, and that there were no such expenses that may be reimbursed in the
subsequent year in the case of Class A on such date. 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 is valued
at its latest sale price on that exchange prior to the time assets are valued;
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 (2) all other portfolio securities for which
over-the-counter market quotations are readily available are 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). When market quotations are not readily
available, including circumstances under which it is determined by the
Investment Manager that sale or 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 Fund's Trustees (valuation of debt securities for which market quotations
are not readily available may be based upon current market prices of securities
which are comparable in coupon, rating and maturity or an appropriate matrix
utilizing similar factors).
 
    Short-term debt securities with remaining maturities of sixty 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.
 
    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 the pricing
service believes is the fair valuation of such portfolio securities.
 
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 Morgan Stanley Dean Witter Fund), 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 Morgan Stanley Dean Witter money market fund, on a semi-monthly,
monthly or quarterly basis, to the Transfer Agent for investment in shares of
the Fund (see "Purchase of Fund Shares" and "Redemptions and
Repurchases--Involuntary Redemtption").
 
INVESTMENT OF DIVIDENDS AND 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
thirty 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").
 
22
<PAGE>
SYSTEMATIC WITHDRAWAL PLAN.  A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders whose shares of Morgan Stanley Dean Witter
Funds have an aggregate value of $10,000 or more. Shares of any Fund from which
redemptions will be made pursuant to the Plan must have a value of $1,000 or
more (referred to as a "SWP Fund"). The required share values are determined on
the date the shareholder establishes the Withdrawal Plan. The Withdrawal Plan
provides for monthly, quarterly, semi-annual or annual payments in any amount
not less than $25, or in any whole percentage of the value of the SWP Funds'
shares, on an annualized basis. Any applicable CDSC will be imposed on shares
redeemed under the Withdrawal Plan (see "Purchase of Fund Shares"), except that
the CDSC, if any, will be waived on redemptions under the Withdrawal Plan of up
to 12% annually of the value of each SWP Fund account, based on the share values
next determined after the shareholder establishes the Withdrawal Plan. (For
shareholders who established the Withdrawal Plan prior to October 1, 1998, the
value of each SWP Fund account for the purpose of the 12% CDSC waiver will be
determined at 4:00 p.m., New York time, on October 2, 1998.) Redemptions for
which this CDSC waiver policy applies may be in amounts up to 1% per month, 3%
per quarter, 6% semi-annually or 12% annually. Under this CDSC waiver policy,
amounts withdrawn each period will be paid by first redeeming shares not subject
to a CDSC because the shares were purchased by the reinvestment of dividends or
capital gains distributions, the CDSC period has elapsed or some other waiver of
the CDSC applies. If shares subject to a CDSC must be redeemed, shares held for
the longest period of time will be redeemed first and continuing with shares
held the next longest period of time until shares held the shortest period of
time are redeemed. 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,
quarterly, semi-annual or annual amount.
 
    A shareholder may suspend or terminate participation in the Withdrawal Plan
at any time. A shareholder who has suspended participation may resume payments
under the Withdrawal Plan, without requiring a new determination of the account
value for the 12% CDSC waiver. The Withdrawal Plan may be terminated or revised
at any time by the Fund.
 
    Prior to adding an additional SWP Fund to an existing Withdrawal Plan, the
required $10,000/$1,000 share values must be met, to be calculated on the date
the shareholder adds the additional SWP Fund. However, the addition of a new SWP
Fund will not change the account value for the 12% CDSC waiver for the SWP Funds
already participating in the Withdrawal Plan.
 
    Withdrawal Plan payments should not be considered 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 Morgan Stanley Dean Witter Financial
Advisor or other Selected Broker-Dealer representative 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 advisor.
 
    For further information regarding plan administration, custodial fees and
other details, investors should contact their Morgan Stanley Dean Witter
Financial Advisor or other Selected Broker-Dealer representative or the Transfer
Agent.
 
EXCHANGE PRIVILEGE
 
Shares of each Class may be exchanged for shares of the same Class of any other
Morgan Stanley Dean Witter Multi-Class Fund without the imposition of any
exchange fee. Shares may also be exchanged for shares of the following funds:
Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust, Morgan Stanley Dean
Witter Limited Term Municipal Trust, Morgan Stanley Dean Witter Short-Term Bond
Fund and five Morgan Stanley Dean Witter Funds which are money market funds (the
"Exchange Funds"). Class A shares may also be exchanged for shares of Morgan
Stanley Dean Witter Multi-State Municipal Series Trust and Morgan Stanley Dean
Witter Hawaii Municipal Trust, which are Morgan Stanley Dean Witter Funds sold
with a front-end sales charge ("FSC Funds"). Class B shares may also be
exchanged for shares of Morgan Stanley Dean Witter Global Short-Term Income Fund
Inc. ("Global Short-Term"), which is a Morgan Stanley Dean Witter Fund offered
with a CDSC. 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 Morgan Stanley Dean Witter Multi-Class Fund, any FSC
Fund, Global Short-Term 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
 
                                                                              23
<PAGE>
and any of the Morgan Stanley Dean Witter Multi-Class Funds, FSC Funds, Global
Short-Term 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 Morgan Stanley Dean Witter
Multi-Class Fund or shares of Global Short-Term, the holding period previously
frozen when the first exchange was made resumes on the last day of the month in
which shares of a Morgan Stanley Dean Witter Multi-Class Fund or shares of,
Global Short-Term are reacquired. Thus, the CDSC is based upon the time
(calculated as described above) the shareholder was invested in shares of a
Morgan Stanley Dean Witter Multi-Class Fund or in shares of Global Short-Term
(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. 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, if any, incurred on or after that
date which are attributable to those shares. (Exchange Fund 12b-1 distribution
fees are described in the prospectus for those funds.) Class B shares of the
Fund acquired in exchange for shares of Global Short-Term or Class B shares of
another Morgan Stanley Dean Witter Multi-Class 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 Morgan Stanley 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 to the shareholder
not later than ten days following such shareholder's most recent exchange. Also,
the Exchange Privilege may be terminated or revised at any time by the Fund
and/or any of such Morgan Stanley 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 Morgan Stanley Dean Witter
Financial Advisor or other Selected Broker-Dealer representative 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 a copy 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 a 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 Morgan
Stanley Dean Witter Funds (for which the Exchange Privilege is available)
pursuant to this Exchange Privilege by contacting their Morgan Stanley Dean
Witter Financial Advisor or other Selected Broker-Dealer representative (no
Exchange Privilege Authorization Form is required). Other shareholders (and
those shareholders who are clients of DWR or another Selected Broker-Dealer but
who wish to make 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.
 
24
<PAGE>
    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 Morgan Stanley Dean Witter
Financial Advisor or other Selected Broker-Dealer representative, 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 case with the Morgan Stanley Dean Witter Funds in the past.
 
    Shareholders should contact their Morgan Stanley Dean Witter Financial
Advisor or other Selected Broker-Dealer representative or the Transfer Agent for
further information about the Exchange Privilege.
 
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
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 or other Selected Broker-Dealer, reduced by any applicable CDSC.
 
    The CDSC, if any, will be the only fee imposed by 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
needed to verify that the check used for investment has been honored (not more
than fifteen days from the time of investment of the check by the Transfer
Agent). Shareholders maintaining margin accounts with DWR or another Selected
Broker-Dealer are referred to their Morgan Stanley Dean Witter Financial Advisor
or other Selected Broker-Dealer representative 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 their 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, on sixty days' notice, to
redeem, at their net asset value, the shares of any shareholder (other than
shares held in an Individual Retirement Account or custodial account under
Section 403(b)(7) of the Internal Revenue Code) whose shares have a value of
less than $100, or such lesser amount as may be fixed by the Board of Trustees
or, in the case of an account opened through EasyInvest-SM-, 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 the shareholder sixty days to make an additional
investment in an amount which will increase the value of the account to at least
the applicable amount before the redemption is processed. No CDSC will be
imposed on any involuntary redemption.
 
                                                                              25
<PAGE>
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 continue to
qualify as a regulated investment company under Subchapter M of the Internal
Revenue Code, it is not expected that the Fund will be required to pay any
federal income tax. Shareholders who are required to pay taxes on their income
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. Such
dividends and distributions, to the extent that they are derived from net
investment income or net short-term capital gains, are taxable to the
shareholder as ordinary income regardless of whether the shareholder receives
such payments in additional shares or in cash. Any dividends declared in the
last quarter of any calendar year which are paid in the following year prior to
February 1 will be deemed, for tax purposes, to have been received by the
shareholder in the prior year.
 
    Gains or losses on the Fund's transactions in listed non-equity options,
futures and options on futures generally are treated as 60% long-term and 40%
short-term capital gains or losses. When the Fund engages in options and futures
transactions, various tax regulations applicable to the Fund may have the effect
of causing the Fund to recognize a gain or loss for tax purposes before that
gain or loss is realized, or to defer recognition of a realized loss for tax
purposes. Recognition, for tax purposes, of an unrealized loss may result in a
lesser amount of the Fund's realized gains being available for annual
distribution.
 
    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 corporate dividends received deduction.
 
    The Fund may at times make payments from sources other than income or net
capital gains. Payments from such sources would, in effect, represent a return
of a portion of each shareholder's investment. All, or a portion, of such
payments would not be taxable to shareholders.
 
    After the end of the calendar year, shareholders will be sent full
information on their dividends and capital gains distributions for tax purposes.
Shareholders will also be notified of their proportionate share of long-term
capital gains distributions that are eligible for a reduced rate of tax under
the Taxpayer Relief Act of 1997. 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.
 
    Shareholders should consult their tax advisors 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, five and ten years, or over the
life of the Fund, if less than any of the foregoing. 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 which would be 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. Such calculations may or
may not reflect the deduction of any sales charge which, if reflected,
 
26
<PAGE>
would reduce the performance quoted. 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. The Fund from time to time may also advertise its
performance relative to certain performance rankings and indexes compiled by
independent organizations (E.G., mutual fund performance rankings of Lipper
Analytical Services, Inc.; S&P 500 stock index; Dow Jones and Company, Inc.
Industrial Average).
 
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 certain
circumstances, the Trustees may be removed by action of the Trustees or by the
Shareholders.
 
    Under Massachusetts law, shareholders of a business trust may, under certain
limited 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 and
reimbursement of expenses 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 thus, 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 MSDW Advisors, MSDW
Services and MSDW Distributors 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 Morgan
Stanley 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
Morgan Stanley 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
non-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.
 
                                                                              27
<PAGE>
MORGAN STANLEY DEAN WITTER
STRATEGIST FUND
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
 
TRUSTEES
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Wayne E. Hedien
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
Mark Bavoso
Vice President
Thomas F. Caloia
Treasurer
 
CUSTODIAN
The Bank of New York
90 Washington Street
New York, New York 10286
 
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
Morgan Stanley Dean Witter Trust FSB
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
 
INDEPENDENT ACCOUNTANTS
PricewaterhouseCoopers LLP
1177 Avenue of the Americas
New York, New York 10036
 
INVESTMENT MANAGER
Morgan Stanley Dean Witter Advisors Inc.


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