MORGAN STANLEY DEAN WITTER MARKET LEADER TRUST
497, 2000-11-03
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<PAGE>

                                                Filed Pursuant to Rule 497(c)
                                                Registration File No.: 333-15813

                                                   PROSPECTUS - OCTOBER 31, 2000


MORGAN STANLEY DEAN WITTER

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



                                                            MARKET LEADER TRUST



                           A MUTUAL FUND THAT SEEKS LONG-TERM GROWTH OF CAPITAL

The Securities and Exchange Commission has not approved or disapproved these
securities or passed upon the adequacy of this Prospectus. Any representation to
the contrary is a criminal offense.




<PAGE>


CONTENTS

<TABLE>
<S>                         <C>
The Fund                    Investment Objective ...................................... 1
                            Principal Investment Strategies ........................... 1
                            Principal Risks ........................................... 2
                            Past Performance .......................................... 4
                            Fees and Expenses ......................................... 5
                            Additional Investment Strategy Information ................ 6
                            Additional Risk Information ............................... 7
                            Fund Management ........................................... 8

Shareholder Information     Pricing Fund Shares ....................................... 9
                            How to Buy Shares ......................................... 9
                            How to Exchange Shares ....................................11
                            How to Sell Shares ........................................13
                             Distributions ............................................15
                            Tax Consequences ..........................................15
                            Share Class Arrangements ..................................16

Financial Highlights        ...........................................................25

Our Family of Funds         ........................................... Inside Back Cover

                            This Prospectus contains important information about the Fund.
                            Please read it carefully and keep it for future reference.
</TABLE>

<PAGE>


THE FUND


[GRAPHIC OMITTED]


      INVESTMENT OBJECTIVE
--------------------------------
          Morgan Stanley Dean Witter Market Leader Trust (the "Fund") seeks
          long-term growth of capital.




[GRAPHIC OMITTED]


      PRINCIPAL INVESTMENT STRATEGIES
--------------------------------------------
[sidebar]
GROWTH OF CAPITAL
An investment objective having the goal of selecting securities with the
potential to rise in price rather than pay out income.
[end sidebar]



          The Fund will normally invest at least 65% of its assets in common
          stocks and other equity securities of companies that the Fund's
          "Investment Manager," Morgan Stanley Dean Witter Advisors Inc.,
          believes are established market leaders in growing industries. The
          Investment Manager considers companies to be "market leaders" if they
          are nationally-known and have established a strong reputation for
          quality management, products and services in the United States and/or
          globally. These companies generally will have a market capitalization
          in excess of $1 billion and will be listed in the U.S. on a national
          stock exchange. The Fund's other equity investments in market leaders
          may include preferred stocks, and debt or preferred stocks convertible
          into common stocks. Up to 10% of the Fund's assets may be invested in
          foreign securities (including depository receipts) that are not listed
          in the U.S. on a national securities exchange.




          In deciding which securities to buy, hold or sell, the Investment
          Manager seeks to identify growing industries in domestic and foreign
          markets. Within these industries, the Investment Manager will apply a
          fundamental analysis seeking to identify the securities it believes
          are the most attractive investments. The Investment Manager pays
          particular attention to companies with recognized product and service
          leadership within their industry as well as to the strength of the
          companies' financial position, earnings growth potential, and other
          factors that the Investment Manager believes are indicators of
          sustainable long-term growth.


          In addition, the Fund may invest in equity and convertible securities
          (including lower-rated convertible securities) of companies other
          than "market leaders," and fixed-income securities, including
          corporate debt and U.S. government securities.


          Common stock is a share ownership or equity interest in a
          corporation. It may or may not pay dividends, as some companies
          reinvest all of their profits back into their businesses, while
          others pay out some of their profits to shareholders as dividends. A
          depository receipt is generally issued by a bank or financial
          institution and represents an ownership interest in the common stock
          or other equity securities of a foreign company.


                                                                               1

<PAGE>


          In pursuing the Fund's investment objective, the Investment Manager
          has considerable leeway in deciding which investments it buys, holds
          or sells on a day-to-day basis -- and which trading strategies it
          uses. For example, the Investment Manager in its discretion may
          determine to use some permitted trading strategies while not using
          others.




[GRAPHIC OMITTED]


      PRINCIPAL RISKS
--------------------------
          There is no assurance that the Fund will achieve its investment
          objective. The Fund's share price will fluctuate with changes in the
          market value of the Fund's portfolio securities. When you sell Fund
          shares, they may be worth less than what you paid for them and,
          accordingly, you can lose money investing in this Fund.


          Common Stocks and Other Equity Securities. A principal risk of
          investing in the Fund is associated with its investments in common
          stocks and other equity securities. In general, stock and other
          equity security values fluctuate in response to activities specific
          to the company as well as general market, economic and political
          conditions. These prices can fluctuate widely in response to these
          factors.


          Foreign Securities. The Fund's investments in foreign securities
          (including depository receipts) involve risks that are in addition to
          the risks associated with domestic securities. One additional risk is
          currency risk. While the price of Fund shares is quoted in U.S.
          dollars, the Fund generally converts U.S. dollars to a foreign
          market's local currency to purchase a security in that market. If the
          value of that local currency falls relative to the U.S. dollar, the
          U.S. dollar value of the foreign security will decrease. This is true
          even if the foreign security's local price remains unchanged.


          Foreign securities also have risks related to economic and political
          developments abroad, including expropriations, confiscatory taxation,
          exchange control regulation, limitations on the use or transfer of
          Fund assets and any effects of foreign social, economic or political
          instability. Foreign companies, in general, are not subject to the
          regulatory requirements of U.S. companies and, as such, there may be
          less publicly available information about these companies. Moreover,
          foreign accounting, auditing and financial reporting standards
          generally are different from 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 the 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 U.S. counterparts. In addition, differences in
          clearance and settlement procedures in foreign markets may occasion
          delays in settlements of the Fund's trades effected in those markets.



2

<PAGE>


          Convertible Securities. The Fund's investments in convertible
          securities subject the Fund to the risks associated with both
          fixed-income securities and common stocks. To the extent that a
          convertible security's investment value is greater than its
          conversion value, its price will likely increase when interest rates
          fall and decrease when interest rates rise, as with a fixed-income
          security. If the conversion value exceeds the investment value, the
          price of the convertible security will tend to fluctuate directly
          with the price of the underlying equity security.


          Other Risks. The performance of the Fund also will depend on whether
          the Investment Manager is successful in pursuing the Fund's
          investment strategy. The Fund is also subject to other risks from its
          permissible investments, including the risks associated with
          fixed-income securities and lower rated convertible securities
          (commonly known as "junk bonds").


          Shares of the Fund are not bank deposits and are not guaranteed or
          insured by the FDIC or any other government agency.


                                                                               3

<PAGE>


[GRAPHIC OMITTED]


      PAST PERFORMANCE
----------------------------
          The bar chart and table below provide some indication of the risks of
          investing in the Fund. The Fund's past performance does not indicate
          how the Fund will perform in the future.

[sidebar]
ANNUAL TOTAL RETURNS
This chart shows how the performance of the Fund's Class B shares has varied
from year to year over the past 2 calendar years.
[end sidebar]

[sidebar]
AVERAGE ANNUAL TOTAL RETURNS
This table compares the Fund's average annual total returns with those of a
broad measure of market performance over time. The Fund's returns include the
maximum applicable sales charge for each Class and assume you sold your shares
at the end of each period.
[end sidebar]


                         ANNUAL TOTAL RETURNS -- CALENDAR YEARS

[GRAPHIC OMITTED]


19.89%    49.51%
1998       '99


The bar chart reflects the performance of Class B shares; the performance of the
other Classes will differ because the Classes have different ongoing fees. The
performance information in the bar chart does not reflect the deduction of sales
charges; if these amounts were reflected, the returns would be less than shown.
Year-to-date total return as of September 30, 2000 was 7.12%.


          During the periods shown in the bar chart, the highest return for a
          calendar quarter was 27.98% (quarter ended December 31, 1998) and the
          lowest return for a calendar quarter was -18.45% (quarter ended
          September 30, 1998).


             AVERAGE ANNUAL TOTAL RETURNS (AS OF DECEMBER 31, 1999)

<TABLE>
<CAPTION>
                                     LIFE OF FUND
                    PAST 1 YEAR  (SINCE APRIL 28, 1997)
                    -----------  ----------------------
<S>                  <C>             <C>
  Class A(1)         42.76%             --
  Class B            44.51%          27.52%
  Class C(1)         48.93%             --
  Class D(1)         51.36%             --
  S&P 500 Index(2)   21.04%          29.08%
</TABLE>

(1)  Classes A, C and D commenced operations on July 28, 1997.

(2)  The Standard & Poor's 500 Index (S&P 500 (Registered Trademark) ) is a
     broad-based index, the performance of which is based on the performance of
     500 widely-held common stocks chosen for market size, liquidity and
     industry group representation. The Index does not include any expenses,
     fees or charges. The Index is unmanaged and should not be considered an
     investment.


4

<PAGE>


[GRAPHIC OMITTED]


      FEES AND EXPENSES
-----------------------------
[sidebar]
SHAREHOLDER FEES
These fees are paid directly from your investment.
[end sidebar]

[sidebar]
ANNUAL FUND OPERATING EXPENSES
These expenses are deducted from the Fund's assets and are based on expenses
paid for the fiscal year ended August 31, 2000.
[end sidebar]

          The table below briefly describes the fees and expenses that you may
          pay if you buy and hold shares of the Fund. The Fund offers four
          Classes of shares: Classes A, B, C and D. Each Class has a different
          combination of fees, expenses and other features. The Fund does not
          charge account or exchange fees. See the "Share Class Arrangements"
          section for further fee and expense information.

<TABLE>
<CAPTION>
                                                     CLASS A      CLASS B      CLASS C     CLASS D
  <S>                                                  <C>          <C>         <C>         <C>
  SHAREHOLDER FEES
  Maximum sales charge (load) imposed on
  purchases (as a percentage of offering price)        5.25%(1)     None        None        None
  Maximum deferred sales charge (load) (as a
  percentage based on the lesser of the offering
  price or net asset value at redemption)              None(2)      5.00%(3)    1.00%(4)    None

  ANNUAL FUND OPERATING EXPENSES
  Management fee                                       0.75%        0.75%       0.75%       0.75%
  Distribution and service (12b-1) fees                0.25%        1.00%       1.00%       None
  Other expenses                                       0.18%        0.18%       0.18%       0.18%
  Total annual Fund operating expenses                 1.18%        1.93%       1.93%       0.93%
</TABLE>

(1)  Reduced for purchases of $25,000 and over.

(2)  Investments that are not subject to any sales charge at the time of
     purchase are subject to a contingent deferred sales charge ("CDSC") of
     1.00% that will be imposed if you sell your shares within one year after
     purchase, except for certain specific circumstances.

(3)  The CDSC is scaled down to 1.00% during the sixth year, reaching zero
     thereafter. See "Share Class Arrangements" for a complete discussion of the
     CDSC.

(4)  Only applicable if you sell your shares within one year after purchase.

                                                                               5

<PAGE>


          EXAMPLE

          This example is intended to help you compare the cost of investing in
          the Fund with the cost of investing in other mutual funds.


          The example assumes that you invest $10,000 in the Fund, your
          investment has a 5% return each year, and the Fund's operating
          expenses remain the same. Although your actual costs may be higher or
          lower, the tables below show your costs at the end of each period
          based on these assumptions depending upon whether or not you sell
          your shares at the end of each period.

<TABLE>
<CAPTION>
                   IF YOU SOLD YOUR SHARES:                IF YOU HELD YOUR SHARES:
            --------------------------------------- --------------------------------------
             1 YEAR   3 YEARS   5 YEARS   10 YEARS   1 YEAR   3 YEARS   5 YEARS   10 YEARS
            -------- --------- --------- ---------- -------- --------- --------- ---------
<S>           <C>       <C>     <C>       <C>        <C>      <C>       <C>       <C>
  CLASS A     $639      $880    $1,140      $1,882     $639      $880   $1,140     $1,882
-----------   ----      ----    ------      ------     ----      ----   ------     ------
  CLASS B     $696      $906    $1,242      $2,254     $196      $606   $1,042     $2,254
-----------   ----      ----    ------      ------     ----      ----   ------     ------
  CLASS C     $296      $606    $1,042      $2,254     $196      $606   $1,042     $2,254
-----------   ----      ----    ------      ------     ----      ----   ------     ------
  CLASS D     $ 95      $296    $  515      $1,143     $ 95      $296   $  515     $1,143
-----------   ----      ----    ------      ------     ----      ----   ------     ------
</TABLE>

          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.




[GRAPHIC OMITTED]


      ADDITIONAL INVESTMENT STRATEGY INFORMATION
---------------------------------------------------------
          This section provides additional information relating to the Fund's
          principal investment strategies.


          Other Securities. The Fund may invest up to 35% of its assets in
          equity and convertible securities (including lower-rated convertible
          securities) of companies other than "market leaders," and
          fixed-income securities, including corporate debt and U.S. government
          securities.


          Junk Bonds. The Fund may invest up to 20% of its assets in
          convertible fixed-income securities rated lower than investment grade
          or, if unrated, of comparable quality as determined by the Investment
          Manager.


          Defensive Investing. The Fund may take temporary "defensive"
          positions in attempting to respond to adverse market conditions. The
          Fund may invest any amount of its assets in cash or money market
          instruments in a defensive posture when the Investment Manager
          believes it is advisable to do so. Although taking a defensive
          posture is designed to protect the Fund from an anticipated market
          downturn, it could have the effect of reducing the benefit from any
          upswing in the market. When the Fund takes a defensive position, it
          may not achieve its investment objective.


6

<PAGE>


          The percentage limitations relating to the composition of the Fund's
          portfolio apply at the time the Fund acquires an investment.
          Subsequent percentage changes that result from market fluctuations
          will not require the Fund to sell any portfolio security. The Fund
          may change its principal investment strategies without shareholder
          approval; however, you would be notified of any changes.




[GRAPHIC OMITTED]


      ADDITIONAL RISK INFORMATION
----------------------------------------
          This section provides additional information relating to the
          principal risks of investing in the Fund.


          Fixed-Income Securities. Principal risks of investing in the Fund are
          also associated with its fixed-income securities. All fixed-income
          securities are subject to two types of risk: credit risk and interest
          rate risk. Credit risk refers to the possibility that the issuer of a
          security will be unable to make interest payments and/or repay the
          principal on its debt.


          Interest rate risk refers to fluctuations in the value of a
          fixed-income security resulting from changes in the general level of
          interest rates. When the general level of interest rates goes up, the
          prices of most fixed-income securities go down. When the general
          level of interest rates goes down, the prices of most fixed-income
          securities go up.



          Junk Bonds. Junk bonds are subject to greater risk of loss of income
          and principal than higher-rated securities. The prices of junk bonds
          are likely to be more sensitive to adverse economic changes or
          individual corporate developments than higher-rated securities.
          During an economic downturn or substantial period of rising interest
          rates, junk bond issuers and, in particular, highly leveraged issuers
          may experience financial stress that would adversely affect their
          ability to service their principal and interest payment obligations,
          to meet their projected business goals or to obtain additional
          financing. In the event of a default, the Fund may incur additional
          expenses to seek recovery. The secondary market for junk bonds may be
          less liquid than the markets for higher quality securities and, as
          such, may have an adverse effect on the market prices of certain
          securities. Many junk bonds are issued as Rule 144A securities. Rule
          144A securities could have the effect of increasing the level of Fund
          illiquidity to the extent the Fund may be unable to find qualified
          institutional buyers interested in purchasing the securities. The
          illiquidity of the market may also adversely affect the ability of
          the Fund's Trustees to arrive at a fair value for certain junk bonds
          at certain times and could make it difficult for the Fund to sell
          certain securities. In addition, periods of economic uncertainty and
          change probably would result in increased volatility of market prices
          of high yield securities and a corresponding volatility in the Fund's
          net asset value.



                                                                               7

<PAGE>


[GRAPHIC OMITTED]


       FUND MANAGEMENT
----------------------------
[sidebar]
MORGAN STANLEY DEAN WITTER ADVISORS INC.
The Investment Manager is widely recognized as a leader in the mutual fund
industry and together with Morgan Stanley Dean Witter Services Company Inc.,
its wholly-owned subsidiary, had approximately $155 billion in assets under
management as of September 30, 2000.
[end sidebar]

          The Fund has retained the Investment Manager -- Morgan Stanley Dean
          Witter Advisors Inc. -- to provide administrative services, manage its
          business affairs and invest its assets, including the placing of
          orders for the purchase and sale of portfolio securities. 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. Its main
          business office is located at Two World Trade Center, New York, NY
          10048.

          The Fund's portfolio is managed within the Investment Manager's Growth
          Group. Guy G. Rutherfurd, Jr., Senior Vice President of the Investment
          Manager and Director of the Growth Group of the Investment Manager,
          and Aaron Clark, Vice President of the Investment Manager, are the
          primary portfolio managers of the Fund. Mr. Rutherfurd has been a
          primary portfolio manager of the Fund since its inception in April
          1997 and Mr. Clark has been a primary portfolio manager of the Fund
          since May 2000. Prior to joining the Investment Manager in February
          1997, Mr. Rutherfurd was Chief Investment Officer of Nomura Asset
          Management (U.S.A.) Inc. Prior to joining the Investment Manager in
          April 1997, Mr. Clark was an analyst with Gerard Klauer Mattison & Co.
          (from January 1995-April 1997).

          The Fund pays the Investment Manager a monthly management fee as full
          compensation for the services and facilities furnished to the Fund,
          and for Fund expenses assumed by the Investment Manager. The fee is
          based on the Fund's average daily net assets. For the fiscal year
          ended August 31, 2000, the Fund accrued total compensation to the
          Investment Manager amounting to 0.75% of the Fund's average daily net
          assets.


8

<PAGE>


SHAREHOLDER INFORMATION


[GRAPHIC OMITTED]


       PRICING FUND SHARES
-------------------------------
          The price of Fund shares (excluding sales charges), called "net asset
          value," is based on the value of the Fund's portfolio securities.
          While the assets of each Class are invested in a single portfolio of
          securities, the net asset value of each Class will differ because the
          Classes have different ongoing distribution fees.


          The net asset value per share of the Fund is determined once daily at
          4:00 p.m. Eastern time on each day that the New York Stock Exchange
          is open (or, on days when the New York Stock Exchange closes prior to
          4:00 p.m., at such earlier time). Shares will not be priced on days
          that the New York Stock Exchange is closed.


          The value of the Fund's portfolio securities is based on the
          securities' market price when available. When a market price is not
          readily available, including circumstances under which the Investment
          Manager determines that a security's market price is not accurate, a
          portfolio security is valued at its fair value, as determined under
          procedures established by the Fund's Board of Trustees. In these
          cases, the Fund's net asset value will reflect certain portfolio
          securities' fair value rather than their market price.


          An exception to the Fund's general policy of using market prices
          concerns its short-term debt portfolio securities. Debt securities
          with remaining maturities of sixty days or less at the time of
          purchase are valued at amortized cost. However, if the cost does not
          reflect the securities' market value, these securities will be valued
          at their fair value.


[GRAPHIC OMITTED]

      HOW TO BUY SHARES
------------------------------
[sidebar]
CONTACTING A FINANCIAL ADVISOR
If you are new to the Morgan Stanley Dean Witter Family of Funds and would like
to contact a Financial Advisor, call (877) 937-MSDW (toll-free) for the
telephone number of the Morgan Stanley Dean Witter office nearest you. You may
also access our office locator on our Internet site at:
www.msdwadvice.com/funds
[end sidebar]

                         You may open a new account to buy Fund shares or buy
                         additional Fund shares for an existing account by
                         contacting your Morgan Stanley Dean Witter Financial
                         Advisor or other authorized financial representative.
                         Your Financial Advisor will assist you, step-by-step,
                         with the procedures to invest in the Fund. You may also
                         purchase shares directly by calling the Fund's transfer
                         agent and requesting an application.

                         Because every investor has different immediate
                         financial needs and long-term investment goals, the
                         Fund offers investors four Classes of shares: Classes
                         A, B, C and D. Class D shares are only offered to a
                         limited group of investors. Each Class of shares
                         offers a distinct structure of sales charges,
                         distribution and service fees, and other features that
                         are designed to address a variety of needs. Your
                         Financial Advisor or other authorized financial
                         representative can help you decide which Class may be
                         most appropriate for you. When purchasing Fund shares,
                         you must specify which Class of shares you wish to
                         purchase.


                                                                               9

<PAGE>


          When you buy Fund shares, the shares are purchased at the next share
          price calculated (less any applicable front-end sales charge for
          Class A shares) after we receive your purchase order. Your payment is
          due on the third business day after you place your purchase order. We
          reserve the right to reject any order for the purchase of Fund
          shares.

[sidebar]
EASYINVEST(SM)
A purchase plan that allows you to transfer money automatically from your
checking or savings account or from a Money Market Fund on a semi-monthly,
monthly or quarterly basis. Contact your Morgan Stanley Dean Witter Financial
Advisor for further information about this service.
[end sidebar]


<TABLE>
<CAPTION>

 MINIMUM INVESTMENT AMOUNTS

                                                             MINIMUM INVESTMENT
                                                            --------------------
  INVESTMENT OPTIONS                                        INITIAL  ADDITIONAL
  <S>                                   <C>                 <C>         <C>
  Regular Accounts                                          $1,000     $100
  Individual Retirement Accounts:         Regular IRAs      $1,000     $100
                                        Education IRAs      $  500     $100
  EasyInvest(SM)
  (Automatically from your
  checking or savings account
  or Money Market Fund)                                     $  100*    $100*
</TABLE>

*    Provided your schedule of investments totals $1,000 in twelve months.


          There is no minimum investment amount if you purchase Fund shares
          through: (1) the Investment Manager's mutual fund asset allocation
          plan, (2) a program, approved by the Fund's distributor, in which you
          pay an asset-based fee for advisory, administrative and/or brokerage
          services, (3) the following programs approved by the Fund's
          distributor: (i) qualified state tuition plans described in Section
          529 of the Internal Revenue Code and (ii) certain other investment
          programs that do not charge an asset-based fee, or (4)
          employer-sponsored employee benefit plan accounts.


          Investment Options for Certain Institutional and Other
          Investors/Class D Shares. To be eligible to purchase Class D shares,
          you must qualify under one of the investor categories specified in
          the "Share Class Arrangements" section of this Prospectus.


          Subsequent Investments Sent Directly to the Fund. In addition to
          buying additional Fund shares for an existing account by contacting
          your Morgan Stanley Dean Witter Financial Advisor, you may send a
          check directly to the Fund. To buy additional shares in this manner:

          o    Write a "letter of instruction" to the Fund specifying the
               name(s) on the account, the account number, the social security
               or tax identification number, the Class of shares you wish to
               purchase and the investment amount (which would include any
               applicable front-end sales charge). The letter must be signed by
               the account owner(s).

          o    Make out a check for the total amount payable to: Morgan Stanley
               Dean Witter Market Leader Trust.


10

<PAGE>


          o    Mail the letter and check to Morgan Stanley Dean Witter Trust FSB
               at P.O. Box 1040, Jersey City, NJ 07303.




[GRAPHIC OMITTED]



      HOW TO EXCHANGE SHARES
------------------------------------
          Permissible Fund Exchanges. You may exchange shares of any Class of
          the Fund for the same Class of any other continuously offered
          Multi-Class Fund, or for shares of a No-Load Fund, a Money Market
          Fund, North American Government Income Trust or Short-Term U.S.
          Treasury Trust, without the imposition of an exchange fee. In
          addition, Class A shares of the Fund may be exchanged for shares of
          an FSC Fund (funds subject to a front-end sales charge). See the
          inside back cover of this Prospectus for each Morgan Stanley Dean
          Witter Fund's designation as a Multi-Class Fund, No- Load Fund, Money
          Market Fund or FSC Fund. If a Morgan Stanley Dean Witter Fund is not
          listed, consult the inside back cover of that fund's prospectus for
          its designation.


          Exchanges may be made after shares of the fund acquired by purchase
          have been held for thirty days. There is no waiting period for
          exchanges of shares acquired by exchange or dividend reinvestment.
          The current prospectus for each fund describes its investment
          objective(s), policies and investment minimums, and should be read
          before investment. Since exchanges are available only into
          continuously offered Morgan Stanley Dean Witter Funds, exchanges are
          not available into any new Morgan Stanley Dean Witter Fund during its
          initial offering period, or when shares of a particular Morgan
          Stanley Dean Witter Fund are not being offered for purchase.


          Exchange Procedures. You can process an exchange by contacting your
          Morgan Stanley Dean Witter Financial Advisor or other authorized
          financial representative. Otherwise, you must forward an exchange
          privilege authorization form to the Fund's transfer agent -- Morgan
          Stanley Dean Witter Trust FSB -- and then write the transfer agent or
          call (800) 869-NEWS to place an exchange order. You can obtain an
          exchange privilege authorization form by contacting your Financial
          Advisor or other authorized financial representative or by calling
          (800) 869-NEWS. If you hold share certificates, no exchanges may be
          processed until we have received all applicable share certificates.


          An exchange to any Morgan Stanley Dean Witter Fund (except a Money
          Market Fund) is made on the basis of the next calculated net asset
          values of the funds involved after the exchange instructions are
          accepted. When exchanging into a Money Market Fund, the Fund's shares
          are sold at their next calculated net asset value and the Money
          Market Fund's shares are purchased at their net asset value on the
          following business day.


          The Fund may terminate or revise the exchange privilege upon required
          notice. The check writing privilege is not available for Money Market
          Fund shares you acquire in an exchange.


                                                                              11

<PAGE>


          Telephone Exchanges. For your protection when calling Morgan Stanley
          Dean Witter Trust FSB, we will employ reasonable procedures to
          confirm that exchange instructions communicated over the telephone
          are genuine. These procedures may include requiring various forms of
          personal identification such as name, mailing address, social
          security or other tax identification number. Telephone instructions
          also may be recorded.


          Telephone instructions will be accepted if received by the Fund's
          transfer agent between 9:00 a.m. and 4:00 p.m. Eastern time on any
          day the New York Stock Exchange is open for business. 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 Fund in the past.


          Margin Accounts. If you have pledged your Fund shares in a margin
          account, contact your Morgan Stanley Dean Witter Financial Advisor or
          other authorized financial representative regarding restrictions on
          the exchange of such shares.


          Tax Considerations of Exchanges. If you exchange shares of the Fund
          for shares of another Morgan Stanley Dean Witter Fund, there are
          important tax considerations. For tax purposes, the exchange out of
          the Fund is considered a sale of Fund shares -- and the exchange into
          the other fund is considered a purchase. As a result, you may realize
          a capital gain or loss.


          You should review the "Tax Consequences" section and consult your own
          tax professional about the tax consequences of an exchange.


          Limitations on Exchanges. Certain patterns of past exchanges and/or
          purchase or sale transactions involving the Fund or other Morgan
          Stanley Dean Witter Funds may result in the Fund limiting or
          prohibiting, at its discretion, additional purchases and/or
          exchanges. Determinations in this regard may be made based on the
          frequency or dollar amount of the previous exchanges or purchase or
          sale transactions. You will be notified in advance of limitations on
          your exchange privileges.


          CDSC Calculations on Exchanges. See the "Share Class Arrangements"
          section of this Prospectus for a further discussion of how applicable
          contingent deferred sales charges (CDSCs) are calculated for shares
          of one Morgan Stanley Dean Witter Fund that are exchanged for shares
          of another.


          For further information regarding exchange privileges, you should
          contact your Morgan Stanley Dean Witter Financial Advisor or call
          (800) 869-NEWS.


12

<PAGE>


[GRAPHIC OMITTED]


      HOW TO SELL SHARES
-------------------------------
          You can sell some or all of your Fund shares at any time. If you sell
          Class A, Class B or Class C shares, your net sale proceeds are
          reduced by the amount of any applicable CDSC. Your shares will be
          sold at the next price calculated after we receive your order to sell
          as described below.

<TABLE>
<CAPTION>
OPTIONS               PROCEDURES
--------------------- -----------------------------------------------------------------------------------------------
<S>                   <C>
  Contact Your        To sell your shares, simply call your Morgan Stanley Dean Witter Financial Advisor or other
  Financial Advisor   authorized financial representative.
                      -----------------------------------------------------------------------------------------------
  [GRAPHIC OMITTED]   Payment will be sent to the address to which the account is registered or deposited in your
                      brokerage account.
--------------------- -----------------------------------------------------------------------------------------------
  By Letter           You can also sell your shares by writing a "letter of instruction" that includes:
                      o  your account number;
  [GRAPHIC OMITTED]   o  the dollar amount or the number of shares you wish to sell;
                      o  the Class of shares you wish to sell; and
                      o  the signature of each owner as it appears on the account.
                      -----------------------------------------------------------------------------------------------
                      If you are requesting payment to anyone other than the registered owner(s) or that payment
                      be sent to any address other than the address of the registered owner(s) or pre-designated
                      bank account, you will need a signature guarantee. You can obtain a signature guarantee from
                      an eligible guarantor acceptable to Morgan Stanley Dean Witter Trust FSB. (You should
                      contact Morgan Stanley Dean Witter Trust FSB at (800) 869-NEWS for a determination as to
                      whether a particular institution is an eligible guarantor.) A notary public cannot provide a
                      signature guarantee. Additional documentation may be required for shares held by a
                      corporation, partnership, trustee or executor.
                      -----------------------------------------------------------------------------------------------
                      Mail the letter to Morgan Stanley Dean Witter Trust FSB at P.O. Box 983, Jersey City, NJ
                      07303. If you hold share certificates, you must return the certificates, along with the letter
                      and any required additional documentation.
                      -----------------------------------------------------------------------------------------------
                      A check will be mailed to the name(s) and address in which the account is registered, or
                      otherwise according to your instructions.
                      -----------------------------------------------------------------------------------------------
  Systematic          If your investment in all of the Morgan Stanley Dean Witter Family of Funds has a total
  Withdrawal Plan     market value of at least $10,000, you may elect to withdraw amounts of $25 or more, or in
                      any whole percentage of a fund's balance (provided the amount is at least $25), on a monthly,
  [GRAPHIC OMITTED]   quarterly, semi-annual or annual basis, from any fund with a balance of at least $1,000. Each
                      time you add a fund to the plan, you must meet the plan requirements.
                      -----------------------------------------------------------------------------------------------
                      Amounts withdrawn are subject to any applicable CDSC. A CDSC may be waived under
                      certain circumstances. See the Class B waiver categories listed in the "Share Class
                      Arrangements" section of this Prospectus.
                      -----------------------------------------------------------------------------------------------
                      To sign up for the Systematic Withdrawal Plan, contact your Morgan Stanley Dean Witter
                      Financial Advisor or call (800) 869-NEWS. You may terminate or suspend your plan at any
                      time. Please remember that withdrawals from the plan are sales of shares, not Fund
                      "distributions," and ultimately may exhaust your account balance. The Fund may terminate or
                      revise the plan at any time.
                      -----------------------------------------------------------------------------------------------
</TABLE>

Payment for Sold Shares. After we receive your complete instructions to sell as
described above, a check will be mailed to you within seven days, although we
will attempt to make payment within one business day. Payment may also be sent
to your brokerage account.


                                                                              13

<PAGE>


          Payment may be postponed or the right to sell your shares suspended
          under unusual circumstances. If you request to sell shares that were
          recently purchased by check, your sale will not be effected until it
          has been verified that the check has been honored.


          Tax Considerations. Normally, your sale of Fund shares is subject to
          federal and state income tax. You should review the "Tax
          Consequences" section of this Prospectus and consult your own tax
          professional about the tax consequences of a sale.


          Reinstatement Privilege. If you sell Fund shares and have not
          previously exercised the reinstatement privilege, you may, within 35
          days after the date of sale, invest any portion of the proceeds in
          the same Class of Fund shares at their net asset value and receive a
          pro rata credit for any CDSC paid in connection with the sale.


          Involuntary Sales. The Fund reserves the right, on sixty days'
          notice, to sell the shares of any shareholder (other than shares held
          in an IRA or 403(b) Custodial Account) whose shares, due to sales by
          the shareholder, have a value below $100, or in the case of an
          account opened through EasyInvest(SM), if after 12 months the
          shareholder has invested less than $1,000 in the account.


          However, before the Fund sells your shares in this manner, we will
          notify you and allow you sixty days to make an additional investment
          in an amount that will increase the value of your account to at least
          the required amount before the sale is processed. No CDSC will be
          imposed on any involuntary sale.


          Margin Accounts. If you have pledged your Fund shares in a margin
          account, contact your Morgan Stanley Dean Witter Financial Advisor or
          other authorized financial representative regarding restrictions on
          the sale of such shares.


14

<PAGE>

[GRAPHIC OMITTED]


      DISTRIBUTIONS
------------------------
[sidebar]
TARGETED DIVIDENDS(SM)
You may select to have your Fund distributions automatically invested in other
Classes of Fund shares or Classes of another Morgan Stanley Dean Witter Fund
that you own. Contact your Morgan Stanley Dean Witter Financial Advisor for
further information about this service.
[end sidebar]

          The Fund passes substantially all of its earnings from income and
          capital gains along to its investors as "distributions." The Fund
          earns income from stocks and interest from fixed-income investments.
          These amounts are passed along to Fund shareholders as "income
          dividend distributions." The Fund realizes capital gains whenever it
          sells securities for a higher price than it paid for them. These
          amounts may be passed along as "capital gain distributions."


          The Fund declares income dividends separately for each Class.
          Distributions paid on Class A and Class D shares usually will be
          higher than for Class B and Class C because distribution fees that
          Class B and Class C pay are higher. Normally, income dividends are
          distributed to shareholders annually. Capital gains, if any, are
          usually distributed in December. The Fund, however, may retain and
          reinvest any long-term capital gains. The Fund may at times make
          payments from sources other than income or capital gains that
          represent a return of a portion of your investment.


          Distributions are reinvested automatically in additional shares of the
          same Class and automatically credited to your account, unless you
          request in writing that all distributions be paid in cash. If you
          elect the cash option, the Fund will mail a check to you no later than
          seven business days after the distribution is declared. However, if
          you purchase Fund shares through a Financial Advisor within three
          business days prior to the record date for the distribution, the
          distribution will automatically be paid to you in cash, even if you
          did not request to receive all distributions in cash. No interest will
          accrue on uncashed checks. If you wish to change how your
          distributions are paid, your request should be received by the Fund's
          transfer agent, Morgan Stanley Dean Witter Trust FSB, at least five
          business days prior to the record date of the distributions.


[GRAPHIC OMITTED]


       TAX CONSEQUENCES
----------------------------
          As with any investment, you should consider how your Fund investment
          will be taxed. The tax information in this Prospectus is provided as
          general information. You should consult your own tax professional
          about the tax consequences of an investment in the Fund.


          Unless your investment in the Fund is through a tax-deferred
          retirement account, such as a 401(k) plan or IRA, you need to be
          aware of the possible tax consequences when:

          o    The Fund makes distributions; and

                                                                              15

<PAGE>


          o    You sell Fund shares, including an exchange to another Morgan
               Stanley Dean Witter Fund.


          Taxes on Distributions. Your distributions are normally subject to
          federal and state income tax when they are paid, whether you take
          them in cash or reinvest them in Fund shares. A distribution also may
          be subject to local income tax. Any income dividend distributions and
          any short-term capital gain distributions are taxable to you as
          ordinary income. Any long-term capital gain distributions are taxable
          as long-term capital gains, no matter how long you have owned shares
          in the Fund.


          Every January, you will be sent a statement (IRS Form 1099-DIV)
          showing the taxable distributions paid to you in the previous year.
          The statement provides information on your dividends and capital
          gains for tax purposes.


          Taxes on Sales. Your sale of Fund shares normally is subject to
          federal and state income tax and may result in a taxable gain or loss
          to you. A sale also may be subject to local income tax. Your exchange
          of Fund shares for shares of another Morgan Stanley Dean Witter Fund
          is treated for tax purposes like a sale of your original shares and a
          purchase of your new shares. Thus, the exchange may, like a sale,
          result in a taxable gain or loss to you and will give you a new tax
          basis for your new shares.


          When you open your Fund account, you should provide your social
          security or tax identification number on your investment application.
          By providing this information, you will avoid being subject to a
          federal backup withholding tax of 31% on taxable distributions and
          redemption proceeds. Any withheld amount would be sent to the IRS as
          an advance tax payment.



[GRAPHIC OMITTED]


       SHARE CLASS ARRANGEMENTS
--------------------------------------
          The Fund offers several Classes of shares having different
          distribution arrangements designed to provide you with different
          purchase options according to your investment needs. Your Morgan
          Stanley Dean Witter Financial Advisor or other authorized financial
          representative can help you decide which Class may be appropriate for
          you.


          The general public is offered three Classes: Class A shares, Class B
          shares and Class C shares, which differ principally in terms of sales
          charges and ongoing expenses. A fourth Class, Class D shares, is
          offered only to a limited category of investors. Shares that you
          acquire through reinvested distributions will not be subject to any
          front-end sales charge or CDSC -- contingent deferred sales charge.
          Sales personnel may receive different compensation for selling each
          Class of shares. The sales charges applicable to each Class provide
          for the distribution financing of shares of that Class.


16

<PAGE>


          The chart below compares the sales charge and annual 12b-1 fee
          applicable to each Class:

<TABLE>
<CAPTION>
                                                                                                 MAXIMUM
CLASS     SALES CHARGE                                                                       ANNUAL 12b-1 FEE
-----     ------------                                                                       ----------------
<S>       <C>                                                                               <C>
  A       Maximum 5.25% initial sales charge reduced for purchase of $25,000 or more;
          shares sold without an initial sales charge are generally subject to a 1.0% CDSC
          during the first year                                                                   0.25%
  B       Maximum 5.0% CDSC during the first year decreasing to 0% after six years                1.0%
  C       1.0% CDSC during the first year                                                         1.0%
  D       None                                                                                    None
</TABLE>


          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 purchases of $25,000 or more according to the schedule
          below. Investments of $1 million or more are not subject to an initial
          sales charge, but are generally subject to a contingent deferred sales
          charge, or CDSC, of 1.0% on sales made within one year after the last
          day of the month of purchase. The CDSC will be assessed in the same
          manner and with the same CDSC waivers as with Class B shares. Class A
          shares are also subject to a distribution (12b-1) fee of up to 0.25%
          of the average daily net assets of the Class.

          The offering price of Class A shares includes a sales charge
          (expressed as a percentage of the offering price) on a single
          transaction as shown in the following table:

[sidebar]
FRONT-END SALES CHARGE OR FSC

An initial sales charge you pay when purchasing Class A shares that is based on
a percentage of the offering price. The percentage declines based upon the
dollar value of Class A shares you purchase. We offer three ways to reduce your
Class A sales charges -- the Combined Purchase Privilege, Right of Accumulation
and Letter of Intent.
[end sidebar]

<TABLE>
<CAPTION>
                                                  FRONT-END SALES CHARGE
                                       ----------------------------------------------
                                           PERCENTAGE OF       APPROXIMATE PERCENTAGE
AMOUNT OF SINGLE TRANSACTION           PUBLIC OFFERING PRICE   OF NET 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>

                                                                              17

<PAGE>

          The reduced sales charge schedule is applicable to purchases of Class
          A shares in a single transaction by:

          o    A single account (including an individual, trust or fiduciary
               account).


          o    Family member accounts (limited to husband, wife and children
               under the age of 21).


          o    Pension, profit sharing or other employee benefit plans of
               companies and their affiliates.


          o    Tax-exempt organizations.


          o    Groups organized for a purpose other than to buy mutual fund
               shares.


          Combined Purchase Privilege. You also will have the benefit of
          reduced sales charges by combining purchases of Class A shares of the
          Fund in a single transaction with purchases of Class A shares of
          other Multi-Class Funds and shares of FSC Funds.


          Right of Accumulation. You also may benefit from a reduction of sales
          charges if the cumulative net asset value of Class A shares of the
          Fund purchased in a single transaction, together with shares of other
          funds you currently own which were previously purchased at a price
          including a front-end sales charge (including shares acquired through
          reinvestment of distributions), amounts to $25,000 or more. Also, if
          you have a cumulative net asset value of all your Class A and Class D
          shares equal to at least $5 million (or $25 million for certain
          employee benefit plans), you are eligible to purchase Class D shares
          of any fund subject to the fund's minimum initial investment
          requirement.


          You must notify your Morgan Stanley Dean Witter Financial Advisor or
          other authorized financial representative (or Morgan Stanley Dean
          Witter Trust FSB if you purchase directly through the Fund), at the
          time a purchase order is placed, that the purchase qualifies for the
          reduced sales charge under the Right of Accumulation. Similar
          notification must be made in writing when an order is placed by mail.
          The reduced sales charge will not be granted if: (i) notification is
          not furnished at the time of the order; or (ii) a review of the
          records of Dean Witter Reynolds or other authorized dealer of Fund
          shares or the Fund's transfer agent does not confirm your represented
          holdings.


          Letter of Intent. The schedule of reduced sales charges for larger
          purchases also will be available to you if you enter into a written
          "letter of intent." A letter of intent provides for the purchase of
          Class A shares of the Fund or other Multi-Class Funds or shares of
          FSC Funds within a thirteen-month period. The initial purchase under
          a letter of intent must be at least 5% of the stated investment goal.
          To determine the applicable sales charge reduction, you may also
          include: (1) the cost of shares of other Morgan Stanley Dean Witter
          Funds which were previously purchased at a price including a
          front-end


18

<PAGE>



          sales charge during the 90-day period prior to the distributor
          receiving the letter of intent, and (2) the cost of shares of other
          funds you currently own acquired in exchange for shares of funds
          purchased during that period at a price including a front-end sales
          charge. You can obtain a letter of intent by contacting your Morgan
          Stanley Dean Witter Financial Advisor or other authorized financial
          representative, or by calling (800) 869-NEWS. If you do not achieve
          the stated investment goal within the thirteen-month period, you are
          required to pay the difference between the sales charges otherwise
          applicable and sales charges actually paid, which may be deducted
          from your investment.


          Other Sales Charge Waivers. In addition to investments of $1 million
          or more, your purchase of Class A shares is not subject to a
          front-end sales charge (or a CDSC upon sale) if your account
          qualifies under one of the following categories:

          o    A trust for which Morgan Stanley Dean Witter Trust FSB provides
               discretionary trustee services.


          o    Persons participating in a fee-based investment program (subject
               to all of its terms and conditions, including termination fees,
               mandatory sale or transfer restrictions on termination) approved
               by the Fund's distributor pursuant to which they pay an
               asset-based fee for investment advisory, administrative and/or
               brokerage services.

          o    Qualified state tuition plans described in Section 529 of the
               Internal Revenue Code (subject to all applicable terms and
               conditions) and certain other investment programs that do not
               charge an asset-based fee and have been approved by the Fund's
               distributor.


          o    Employer-sponsored employee benefit plans, whether or not
               qualified under the Internal Revenue Code, for which Morgan
               Stanley Dean Witter Trust FSB serves as trustee or Morgan Stanley
               Dean Witter's Retirement Plan Services serves as recordkeeper
               under a written Recordkeeping Services Agreement ("MSDW Eligible
               Plans") which have at least 200 eligible employees.


          o    An MSDW Eligible Plan whose Class B shares have converted to
               Class A shares, regardless of the plan's asset size or number of
               eligible employees.


          o    A client of a Morgan Stanley Dean Witter Financial Advisor who
               joined us from another investment firm within six months prior to
               the date of purchase of Fund shares, and you used the proceeds
               from the sale of shares of a proprietary mutual fund of that
               Financial Advisor's previous firm that imposed either a front-end
               or deferred sales charge to purchase Class A shares, provided
               that: (1) you sold the shares not more than 60 days prior to the
               purchase of Fund shares, and (2) the sale proceeds were
               maintained in the interim in cash or a money market fund.


                                                                              19

<PAGE>


          o    Current or retired Directors/Trustees of the Morgan Stanley Dean
               Witter Funds, such persons' spouses and children under the age of
               21, and trust accounts for which any of such persons is a
               beneficiary.


          o    Current or retired directors, officers and employees of Morgan
               Stanley Dean Witter & Co. and any of its subsidiaries, such
               persons' spouses and children under the age of 21, and trust
               accounts for which any of such persons is a beneficiary.


          CLASS B SHARES Class B shares are offered at net asset value with no
          initial sales charge but are subject to a contingent deferred sales
          charge, or CDSC, as set forth in the table below. For the purpose of
          calculating the CDSC, shares are deemed to have been purchased on the
          last day of the month during which they were purchased.

[sidebar]
CONTINGENT DEFERRED SALES CHARGE OR CDSC
A fee you pay when you sell shares of certain Morgan Stanley Dean Witter Funds
purchased without an initial sales charge. This fee declines the longer you hold
your shares, as set forth in the table.
[end sidebar]

<TABLE>
<CAPTION>
                                    CDSC AS A PERCENTAGE OF
YEAR SINCE PURCHASE PAYMENT MADE        AMOUNT REDEEMED
--------------------------------    -----------------------
<S>                                         <C>
  First                                     5.0%
  Second                                    4.0%
  Third                                     3.0%
  Fourth                                    2.0%
  Fifth                                     2.0%
  Sixth                                     1.0%
  Seventh and thereafter                    None
</TABLE>

          Each time you place an order to sell or exchange shares, shares with
          no CDSC will be sold or exchanged first, then shares with the lowest
          CDSC will be sold or exchanged next. For any shares subject to a
          CDSC, the CDSC will be assessed on an amount equal to the lesser of
          the current market value or the cost of the shares being sold.


          CDSC Waivers. A CDSC, if otherwise applicable, will be waived in the
          case of:

          o    Sales of shares held at the time you die or become disabled
               (within the definition in Section 72(m)(7) of the Internal
               Revenue Code, which relates to the ability to engage in gainful
               employment), if the shares are: (i) registered either in your
               name (not a trust) or in the names of you and your spouse as
               joint tenants with right of survivorship; or (ii) held in a
               qualified corporate or self-employed retirement plan, IRA or
               403(b) Custodial Account, provided in either case that the sale
               is requested within one year of your death or initial
               determination of disability.


          o    Sales in connection with the following retirement plan
               "distributions:" (i) 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,


20

<PAGE>


          following attainment of age 59 1/2); (ii) distributions from an IRA or
          403(b) Custodial Account following attainment of age 59 1/2; or (iii)
          a tax-free return of an excess IRA contribution (a "distribution" does
          not include a direct transfer of IRA, 403(b) Custodial Account or
          retirement plan assets to a successor custodian or trustee).


          o    Sales of shares held for you as a participant in an MSDW Eligible
               Plan.


          o    Sales of shares in connection with the Systematic Withdrawal Plan
               of up to 12% annually of the value of each fund from which plan
               sales are made. The percentage is determined on the date you
               establish the Systematic Withdrawal Plan and based on the next
               calculated share price. You may have this CDSC waiver applied in
               amounts up to 1% per month, 3% per quarter, 6% semi-annually or
               12% annually. Shares with no CDSC will be sold first, followed by
               those with the lowest CDSC. As such, the waiver benefit will be
               reduced by the amount of your shares that are not subject to a
               CDSC. If you suspend your participation in the plan, you may
               later resume plan payments without requiring a new determination
               of the account value for the 12% CDSC waiver.


          o    Sales of shares if you simultaneously invest the proceeds in the
               Investment Manager's mutual fund asset allocation program,
               pursuant to which investors pay an asset-based fee. Any shares
               you acquire in connection with the Investment Manager's mutual
               fund asset allocation program are subject to all of the terms and
               conditions of that program, including termination fees, mandatory
               sale or transfer restrictions on termination.


          All waivers will be granted only following the Fund's distributor
          receiving confirmation of your entitlement. If you believe you are
          eligible for a CDSC waiver, please contact your Financial Advisor or
          call (800) 869-NEWS.


          Distribution Fee. Class B shares are subject to an annual
          distribution (12b-1) fee of 1.0% of the average daily net assets of
          Class B.


          Conversion Feature. After ten (10) years, Class B shares will convert
          automatically to Class A shares of the Fund with no initial sales
          charge. The ten year period runs 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, from the last day of the month in which
          the original Class B shares were purchased; the shares will convert
          to Class A shares based on their relative net asset values in the
          month following the ten year period. At the same time, an equal
          proportion of Class B shares acquired through automatically
          reinvested distributions will convert to Class A shares on the same
          basis. (Class B shares held before May 1, 1997, however, will convert
          to Class A shares in May 2007.)


                                                                              21

<PAGE>

          In the case of Class B shares held in an MSDW Eligible Plan, 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 Class B shares of a
          Morgan Stanley Dean Witter Fund purchased by that plan.


          Currently, the Class B share conversion is not a taxable event; the
          conversion feature may be cancelled if it is deemed a taxable event
          in the future by the Internal Revenue Service.


          If you exchange your Class B shares for shares of a Money Market
          Fund, a No-Load Fund, North American Government Income Trust or
          Short-Term U.S. Treasury Trust, the holding period for conversion is
          frozen as of the last day of the month of the exchange and resumes on
          the last day of the month you exchange back into Class B shares.


          Exchanging Shares Subject to a CDSC. There are special considerations
          when you exchange Fund shares that are subject to a CDSC. When
          determining the length of time you held the shares and the
          corresponding CDSC rate, any period (starting at the end of the
          month) during which you held shares of a fund that does not charge a
          CDSC will not be counted. Thus, in effect the "holding period" for
          purposes of calculating the CDSC is frozen upon exchanging into a
          fund that does not charge a CDSC.


          For example, if you held Class B shares of the Fund for one year,
          exchanged to Class B of another Morgan Stanley Dean Witter
          Multi-Class Fund for another year, then sold your shares, a CDSC rate
          of 4% would be imposed on the shares based on a two year holding
          period -- one year for each fund. However, if you had exchanged the
          shares of the Fund for a Money Market Fund (which does not charge a
          CDSC) instead of the Multi-Class Fund, then sold your shares, a CDSC
          rate of 5% would be imposed on the shares based on a one year holding
          period. The one year in the Money Market Fund would not be counted.
          Nevertheless, if shares subject to a CDSC are exchanged for a Fund
          that does not charge a CDSC, you will receive a credit when you sell
          the shares equal to the distribution (12b-1) fees, if any, you paid
          on those shares while in that fund up to the amount of any applicable
          CDSC.


          In addition, shares that are exchanged into or from a Morgan Stanley
          Dean Witter Fund subject to a higher CDSC rate will be subject to the
          higher rate, even if the shares are re-exchanged into a fund with a
          lower CDSC rate.


          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 sales made
          within one year after the last day of the month of purchase. The CDSC
          will be assessed in the same manner and with the same CDSC waivers as
          with Class B shares.


22

<PAGE>



          Distribution Fee. Class C shares are subject to an annual
          distribution (12b-1) fee of up to 1.0% of the average daily net
          assets of that Class. 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. Unlike Class B shares, Class C shares have no
          conversion feature and, accordingly, an investor that purchases Class
          C shares may be subject to distribution (12b-1) fees applicable to
          Class C shares for an indefinite period.


          CLASS D SHARES Class D shares are offered without any sales charge on
          purchases or sales and without any distribution (12b-1) fee. Class D
          shares are offered only to investors meeting an initial investment
          minimum of $5 million ($25 million for MSDW Eligible Plans) and the
          following investor categories:


          o    Investors participating in the Investment Manager's mutual fund
               asset allocation program (subject to all of its terms and
               conditions, including termination fees, mandatory sale or
               transfer restrictions on termination) pursuant to which they pay
               an asset-based fee.


          o    Persons participating in a fee-based investment program (subject
               to all of its terms and conditions, including termination fees,
               mandatory sale or transfer restrictions on termination) approved
               by the Fund's distributor pursuant to which they pay an
               asset-based fee for investment advisory, administrative and/or
               brokerage services.


          o    Certain investment programs that do not charge an asset-based fee
               and have been approved by the Fund's distributor. However, Class
               D shares are not offered for investments made through Section 529
               plans (regardless of the size of the investment).


          o    Employee benefit plans maintained by Morgan Stanley Dean Witter &
               Co. or any of its subsidiaries for the benefit of certain
               employees of Morgan Stanley Dean Witter & Co. and its
               subsidiaries.


          o    Certain unit investment trusts sponsored by Dean Witter Reynolds.



          o    Certain other open-end investment companies whose shares are
               distributed by the Fund's distributor.


          o    Investors who were shareholders of the Dean Witter Retirement
               Series on September 11, 1998 for additional purchases for their
               former Dean Witter Retirement Series accounts.


                                                                              23

<PAGE>


          Meeting Class D Eligibility Minimums. To meet the $5 million ($25
          million for MSDW Eligible Plans) initial investment to qualify to
          purchase Class D shares you may combine: (1) purchases in a single
          transaction of Class D shares of the Fund and other Morgan Stanley
          Dean Witter Multi-Class Funds; and/or (2) previous purchases of Class
          A and Class D shares of Multi-Class Funds and shares of FSC Funds you
          currently own, along with shares of Morgan Stanley Dean Witter Funds
          you currently own that you acquired in exchange for those shares.

          NO SALES CHARGES FOR REINVESTED CASH DISTRIBUTIONS If you receive a
          cash payment representing an income dividend or capital gain and you
          reinvest that amount in the applicable Class of shares by returning
          the check within 30 days of the payment date, the purchased shares
          would not be subject to an initial sales charge or CDSC.

          PLAN OF DISTRIBUTION (RULE 12b-1 FEES) The Fund has adopted a Plan of
          Distribution in accordance with Rule 12b-1 under the Investment
          Company Act of 1940 with respect to the distribution of Class A, Class
          B and Class C shares. The Plan allows the Fund to pay distribution
          fees for the sale and distribution of these shares. It also allows the
          Fund to pay for services to shareholders of Class A, Class B and Class
          C shares. Because these fees are paid out of the Fund's assets on an
          ongoing basis, over time these fees will increase the cost of your
          investment in these Classes and may cost you more than paying other
          types of sales charges.


24

<PAGE>

FINANCIAL HIGHLIGHTS

The financial highlights table is intended to help you understand the Fund's
financial performance for the periods indicated. Certain information reflects
financial results for a single Fund share throughout each year. The total
returns in the table represent the rate an investor would have earned or lost
on an investment in the Fund (assuming reinvestment of all dividends and
distributions).


The information for the fiscal year ended August 31, 2000, has been audited by
Deloitte & Touche LLP, independent auditors, whose report, along with the
Fund's financial statements, is included in the annual report, which is
available upon request. The financial highlights for the fiscal year ended
August 31, 1999 and all periods presented prior thereto have been audited by
other independent accountants.

<TABLE>
<CAPTION>
                                                                                                           FOR THE PERIOD
                                                               FOR THE YEAR ENDED AUGUST 31,               JULY 28, 1997*
                                                  ----------------------------------------------              THROUGH
                                                     2000             1999               1998             AUGUST 31, 1997
                                                  -----------       --------           ---------          ---------------
<S>                                               <C>               <C>                <C>                 <C>
 CLASS A SHARES++
 SELECTED PER SHARE DATA:
 Net asset value, beginning of period              $ 15.29           $  9.73            $ 10.82             $  10.90
 Income (loss) from investment operations:
  Net investment income (loss)                        0.02             (0.05)             (0.01)                0.01
  Net realized and unrealized gain (loss)             7.05              5.61              (0.96)               (0.09)
                                                   ----------        -------            --------            -----------
 Total income (loss) from investment operations       7.07              5.56              (0.97)               (0.08)
 Less dividends and distributions from:
  Net investment income                                 --                --              (0.06)                  --
  Net realized gain                                  (0.83)               --              (0.06)                  --
                                                   ----------        -------            --------            -----------
 Total dividends and distributions                   (0.83)               --              (0.12)                  --
 Net asset value, end of period                    $ 21.53           $ 15.29            $  9.73             $  10.82
 TOTAL RETURN+                                       47.49%            57.14%             (8.98)%              (0.73)%(1)
 RATIOS TO AVERAGE NET ASSETS:
 Expenses                                             1.18%(3)          1.23%(3)           1.31%(3)             1.89%(2)
 Net investment income (loss)                         0.08%(3)         (0.14)%(3)         (0.06)%(3)            1.30%(2)
 SUPPLEMENTAL DATA:
 Net assets, end of period, in thousands           $12,677           $   971            $   319             $    288
 Portfolio turnover rate                                86%               83%                68%                  22%(1)
</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.
(3)   Reflects overall Fund ratios for investment income and non-class specific
      expenses.


                                                                              25

<PAGE>


<TABLE>
<CAPTION>
                                                                                                              FOR THE PERIOD
                                                               FOR THE YEAR ENDED AUGUST 31,                  APRIL 28, 1997*
                                                  -------------------------------------------------------         THROUGH
                                                       2000++           1999++             1998++           AUGUST 31, 1997**
                                                  ------------        ---------           --------          -----------------
<S>                                                  <C>               <C>                <C>                 <C>
 CLASS B SHARES
 SELECTED PER SHARE DATA:
 Net asset value, beginning of period                $  15.09          $   9.68           $  10.81            $  10.00
 Income (loss) from investment operations:
  Net investment income (loss)                          (0.13)            (0.12)             (0.09)               0.04
  Net realized and unrealized gain (loss)                6.94              5.53              (0.95)               0.77
                                                     --------          --------           --------            -----------
 Total income (loss) from investment operations          6.81              5.41              (1.04)               0.81
 Less dividends and distributions from:
  Net investment income                                    --                --              (0.03)                 --
  Net realized gain                                     (0.83)               --              (0.06)                 --
                                                     --------          --------           --------            -----------
 Total dividends and distributions                      (0.83)               --              (0.09)                 --
 Net asset value, end of period                      $  21.07          $  15.09           $   9.68            $  10.81
 TOTAL RETURN+                                          46.35%            55.89%             (9.65)%              8.10%(1)
 RATIOS TO AVERAGE NET ASSETS:
 Expenses                                                1.93%(4)          1.99%(4)           2.06%(4)            2.34%(2)(3)
 Net investment income (loss)                           (0.67)%(4)        (0.90)%(4)         (0.81)%(4)           1.21%(2)(3)
 SUPPLEMENTAL DATA:
 Net assets, end of period, in thousands             $571,733          $189,534           $116,693            $107,298
 Portfolio turnover rate                                   86%               83%                68%                 22%(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 have been designated Class B 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 of its expenses that were reimbursed or waived
      by the Investment Manager, the annualized expense and net investment
      income ratios would have been 2.47% and 1.08%, respectively.
(4)   Reflects overall Fund ratios for investment income and non-class specific
      expenses.

26

<PAGE>


<TABLE>
<CAPTION>
                                                                                                         FOR THE PERIOD
                                                               FOR THE YEAR ENDED AUGUST 31,            JULY 28, 1997*
                                                  -------------------------------------------------     THROUGH AUGUST
                                                     2000             1999               1998              31, 1997
                                                  ----------        --------           --------         --------------
<S>                                               <C>               <C>                <C>                <C>
 CLASS C SHARES++
 SELECTED PER SHARE DATA:
 Net asset value, beginning of period               $ 15.12          $  9.67            $ 10.81            $ 10.90
 Income (loss) from investment operations:
  Net investment income (loss)                        (0.12)           (0.09)             (0.10)              0.01
  Net realized and unrealized gain (loss)              6.94             5.54              (0.94)             (0.10)
                                                    -------          -------            -------            ---------
 Total income (loss) from investment operations        6.82             5.45              (1.04)             (0.09)
 Less dividends and distributions from:
  Net investment income                                  --               --              (0.04)                --
  Net realized gain                                   (0.83)              --              (0.06)                --
                                                    -------          -------            -------            ---------
 Total dividends and distributions                    (0.83)              --              (0.10)                --
 Net asset value, end of period                     $ 21.11          $ 15.12            $  9.67            $ 10.81
 TOTAL RETURN+                                        46.33%           56.36%             (9.63)%            (0.83)%(1)
 RATIOS TO AVERAGE NET ASSETS:
 Expenses                                              1.93%(3)         1.75%(3)           2.06%(3)           2.54%(2)
 Net investment income (loss)                         (0.67)%(3)       (0.66)%(3)         (0.81)%(3)          0.61%(2)
 SUPPLEMENTAL DATA:
 Net assets, end of period, in thousands            $22,736          $ 2,723             $  937             $  313
 Portfolio turnover rate                                86%               83%                68%                22%(1)
</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.
(3)   Reflects overall Fund ratios for investment income and non-class specific
      expenses.


                                                                              27

<PAGE>


<TABLE>
<CAPTION>
                                                                                                      FOR THE PERIOD
                                                              FOR THE YEAR ENDED AUGUST 31,           JULY 28, 1997*
                                                  ------------------------------------------------       THROUGH
                                                     2000              1999             1998           AUGUST 31, 1997
                                                  -----------       -----------       ------------    ----------------
<S>                                               <C>               <C>               <C>               <C>
 CLASS D SHARES++
 SELECTED PER SHARE DATA:
 Net asset value, beginning of period              $ 15.37           $  9.74           $ 10.82           $  10.90
 Income (loss) from investment operations:
  Net investment income                               0.08                --                --               0.02
  Net realized and unrealized gain (loss)             7.08              5.63             (0.95)             (0.10)
                                                   ----------        ----------        ----------        -----------
 Total income (loss) from investment operations       7.16              5.63             (0.95)             (0.08)
 Less dividends and distributions from:
  Net investment income                                 --                --             (0.07)                --
  Net realized gain                                  (0.83)               --             (0.06)                --
                                                   ----------        ----------        ----------        -----------
 Total dividends and distributions                   (0.83)               --             (0.13)                --
 Net asset value, end of period                    $ 21.70           $ 15.37           $  9.74           $  10.82
 TOTAL RETURN+                                       47.84%            57.80%            (8.81)%            (0.73)%(1)
 RATIOS TO AVERAGE NET ASSETS:
 Expenses                                             0.93%(3)          0.99%(3)          1.06%(3)           1.43%(2)
 Net investment income                                0.33%(3)          0.10%(3)          0.19%(3)           1.81%(2)
 SUPPLEMENTAL DATA:
 Net assets, end of period, in thousands           $47,819           $   554           $ 2,459           $     10
 Portfolio turnover rate                                86%               83%               68%                22%(1)
</TABLE>

*     The date shares were first issued.
++    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.
(3)   Reflects overall Fund ratios for investment income and non-class specific
      expenses.

28

<PAGE>


MORGAN STANLEY DEAN WITTER
FAMILY OF FUNDS

                  The Morgan Stanley Dean Witter Family of Funds offers
                  investors a wide range of investment choices. Come on in and
                  meet the family!

<TABLE>
<S>                        <C>                                        <C>
GROWTH FUNDS               GROWTH FUNDS                               THEME FUNDS
                           Aggressive Equity Fund                     Financial Services Trust
                           American Opportunities Fund                Health Sciences Trust
                           Capital Growth Securities                  Information Fund
                           Developing Growth Securities               Natural Resource Development Securities
                           Growth Fund                                Technology Fund
                           Market Leader Trust
                           Mid-Cap Equity Trust                       GLOBAL/INTERNATIONAL FUNDS
                           New Discoveries Fund                       Competitive Edge Fund - "Best Ideas" Portfolio
                           Next Generation Trust                      European Growth Fund
                           Small Cap Growth Fund                      Fund of Funds - International Portfolio
                           Special Value Fund                         International Fund
                           Tax-Managed Growth Fund                    International SmallCap Fund
                           21st Century Trend Fund                    Japan Fund
                                                                      Latin American Growth Fund
                                                                      Pacific Growth Fund

GROWTH & INCOME FUNDS      Balanced Growth Fund                       Total Market Index Fund
                           Balanced Income Fund                       Total Return Trust
                           Convertible Securities Trust               Value Fund
                           Dividend Growth Securities                 Value-Added Market Series/Equity Portfolio
                           Equity Fund
                           Fund of Funds - Domestic Portfolio         THEME FUNDS
                           Income Builder Fund                        Real Estate Fund
                           S&P 500 Index Fund                         Utilities Fund
                           S&P 500 Select Fund
                           Strategist Fund                            GLOBAL FUNDS
                                                                      Global Dividend Growth Securities
                                                                      Global Utilities Fund

INCOME FUNDS               GOVERNMENT INCOME FUNDS                    GLOBAL INCOME FUNDS
                           Federal Securities Trust                   North American Government Income Trust
                           Short-Term U.S. Treasury Trust             World Wide Income Trust
                           U.S. Government Securities Trust
                                                                      TAX-FREE INCOME FUNDS
                           DIVERSIFIED INCOME FUNDS                   California Tax-Free Income Fund
                           Diversified Income Trust                   Hawaii Municipal Trust(FSC)
                                                                      Limited Term Municipal Trust(NL)
                           CORPORATE INCOME FUNDS                     Multi-State Municipal Series Trust(FSC)
                           High Yield Securities                      New York Tax-Free Income Fund
                           Intermediate Income Securities             Tax-Exempt Securities Trust
                           Short-Term Bond Fund(NL)

MONEY MARKET FUNDS         TAXABLE MONEY MARKET FUNDS                 TAX-FREE MONEY MARKET FUNDS
                           Liquid Asset Fund(MM)                      California Tax-Free Daily Income Trust(MM)
                           U.S. Government Money Market Trust(MM)     New York Municipal Money Market Trust(MM)
                                                                      Tax-Free Daily Income Trust(MM)
</TABLE>

There may be funds created after this Prospectus was published. Please consult
the inside back cover of a new fund's prospectus for its designations, e.g.,
Multi-Class Fund or Money Market Fund.

Unless otherwise noted, each listed Morgan Stanley Dean Witter Fund, except for
North American Government Income Trust and Short-Term U.S. Treasury Trust, is a
Multi-Class Fund. A Multi-Class Fund is a mutual fund offering multiple Classes
of shares. The other types of funds are: NL -- No-Load (Mutual) Fund; MM --
Money Market Fund; FSC -- A mutual fund sold with a front-end sales charge and
a distribution (12b-1) fee.


<PAGE>


                                                   PROSPECTUS - OCTOBER 31, 2000

Additional information about the Fund's investments is available in the Fund's
Annual and Semi-Annual Reports to Shareholders. In the Fund's Annual Report, you
will find a discussion of the market conditions and investment strategies that
significantly affected the Fund's performance during its last fiscal year. The
Fund's Statement of Additional Information also provides additional information
about the Fund. The Statement of Additional Information is incorporated herein
by reference (legally is part of this Prospectus). For a free copy of any of
these documents, to request other information about the Fund, or to make
shareholder inquiries, please call:


                                (800) 869-NEWS


You also may obtain information about the Fund by calling your Morgan Stanley
Dean Witter Financial Advisor or by visiting our Internet site at:


                            www.msdwadvice.com/funds


Information about the Fund (including the Statement of Additional Information)
can be viewed and copied at the Securities and Exchange Commission's Public
Reference Room in Washington, DC. Information about the Reference Room's
operations may be obtained by calling the SEC at (202) 942-8090. Reports and
other information about the Fund are available on the EDGAR Database on the
SEC's Internet site (www.sec.gov), and copies of this information may be
obtained, after paying a duplicating fee, by electronic request at the
following E-mail address: [email protected], or by writing to the Public
Reference Section of the SEC, Washington, DC 20549-0102.

  TICKER SYMBOLS:

  Class A:   MLDAX          Class C:   MLDCX
------------------        ------------------
  Class B:   MLDBX          Class D:   MLDDX
------------------        ------------------


(THE FUND'S INVESTMENT COMPANY ACT FILE NO. IS 811-7915)



MORGAN STANLEY DEAN WITTER
MARKET LEADER TRUST



                                                       A MUTUAL FUND THAT SEEKS
                                                     LONG-TERM GROWTH OF CAPITAL






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