MORGAN STANLEY DEAN WITTER TOTAL MARKET INDEX FUND
497, 1999-08-10
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<PAGE>

                                               Filed Pursuant to Rule 497(c)
                                               Registration File No.: 333-74337

                                                   PROSPECTUS - AUGUST 4, 1999


     Morgan Stanley Dean Witter


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

                                         TOTAL MARKET INDEX FUND



     [GRAPHIC OMITTED]















                                  A MUTUAL FUND THAT SEEKS TO PROVIDE INVESTMENT
                                RESULTS THAT, BEFORE EXPENSES, CORRESPOND TO THE
                               TOTAL RETURN OF THE U.S. STOCK MARKET AS MEASURED
                                         BY THE WILSHIRE 5000 TOTAL MARKET INDEX





  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

The Fund                  Investment Objective.........................1

                          Principal Investment Strategies..............1

                          Principal Risks..............................2

                          Fees and Expenses............................3

                          Additional Investment Strategy Information...4

                          Additional Risk Information..................5

                          Fund Management..............................6

Shareholder Information   Pricing Fund Shares..........................7

                          Underwriting.................................7

                          How to Buy Shares............................8

                          How to Exchange Shares.......................9

                          How to Sell Shares..........................11

                          Distributions...............................12

                          Tax Consequences............................13

                          Share Class Arrangements....................13

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.

<PAGE>

THE FUND

[GRAPHIC OMITTED]


INVESTMENT OBJECTIVE
- --------------------

Morgan Stanley Dean Witter Total Market Index Fund seeks to provide investment
results that, before expenses, correspond to the total return of the U.S. stock
market as measured by the Wilshire 5000 Total Market Index.



[GRAPHIC OMITTED]


PRINCIPAL INVESTMENT STRATEGIES
- -------------------------------

The Wilshire 5000 Total Market Index consists of substantially all of the U.S.
stocks which are actively traded in the U.S. (currently, more than 7,000). The
Index consists of large capitalization, mid capitalization and small
capitalization stocks. Because the Index is market capitalization weighted,
currently large cap stocks in the Index represent approximately two thirds of
its value. The Fund will normally invest at least 80% of its total assets in
stocks included in the Index.


Not all stocks in the Index are purchased because of the practical difficulties
and expense of purchasing and selling over 7,000 stocks. Instead, statistical
sampling is used in an attempt to recreate the Index in terms of industry,
size, dividend yield and other characteristics. For example, if technology
stocks make up 20% of the entire market capitalization of the Index, the Fund
would seek to invest approximately 20% of its assets in certain technology
stocks which, in the aggregate, are believed to be representative of the
technology stocks in the Index. The Fund generally expects that its portfolio
will include the largest 2,500 to 3,000 U.S. stocks (measured by market
capitalization).

The inclusion of a stock in the Index is in no way an endorsement by Wilshire
Associates of the stock as an investment, nor is Wilshire a sponsor of the Fund
or in any way affiliated with it.

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.

In addition, the Fund may invest in options and futures contracts and may make
temporary investments in money market instruments to manage cash flows into and
out of the Fund.

In pursuing the Fund's investment objective, the Investment Manager has
considerable leeway in deciding which trading or investment strategies it uses.
For example, the Investment Manager in its discretion may determine to use some
permitted trading or investment strategies while not using others.

                                        1

<PAGE>



[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.


A principal risk of investing in the Fund is associated with its common stock
investments. In general, stock values fluctuate in response to activities
specific to the company as well as general market, economic and political
conditions. Stock prices can fluctuate widely in response to these factors.

Another risk of investing in the Fund arises from its operation as an index
fund. As such, the adverse performance of a particular stock ordinarily will
not result in the elimination of the stock from the Fund's portfolio. The Fund
will remain invested in common stocks even when stock prices are generally
falling. The Investment Manager seeks a correlation over the long term between
the Fund, before expenses, and the Index of 95% or better. A figure of 100%
would indicate perfect correlation. The Fund's ability to achieve its goal may
be adversely affected by changes in the composition of the Index. In addition,
the Fund's ability to achieve the desired correlation will depend upon the
success of the statistical sampling utilized by the Investment Manager and the
Investment Manager's ability to manage cash flows (primarily from purchases and
redemptions and distributions from the Fund's investments).


OTHER RISKS. The Fund may invest in medium- and small-sized companies, as well
as large, more established companies. Investing in securities of small- and
medium-sized companies involves greater risk than is customarily associated
with investing in more established companies. These stocks may be more volatile
and have returns that vary, sometimes significantly, from the overall stock
market.


The Fund is also subject to other risks from its permissible investments
including the risks associated with its options and futures investments. For
more information about these risks, see the "Additional Risk Information"
section.

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

                                       2

<PAGE>


[GRAPHIC OMITTED]


FEES AND EXPENSES
- -----------------
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.



(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.
(end sidebar)

<TABLE>
<CAPTION>
                                                       CLASS A         CLASS B         CLASS C        CLASS D
<S>                                                    <C>            <C>            <C>             <C>
- -------------------------------------------------------------------------------------------------------------
 SHAREHOLDER FEES
- -------------------------------------------------------------------------------------------------------------
Maximum sales change (load) imposed on                 5.25%(1)       None           None            None
purchases (as a percentage of offering price)
- -------------------------------------------------------------------------------------------------------------
Maximum deferred sales charge (load) (as a             None(2)        5.00%(3)       1.00%(4)        None
percentage based on the lesser of the offering
price or net asset value at redemption)
- -------------------------------------------------------------------------------------------------------------
 ANNUAL FUND OPERATING EXPENSES
- -------------------------------------------------------------------------------------------------------------
Management fee+                                        0.10%          0.10%          0.10%           0.10%
- -------------------------------------------------------------------------------------------------------------
Distribution and service (12b-1) fees                  0.25%          1.00%          1.00%           None
- -------------------------------------------------------------------------------------------------------------
Other expenses(5)+                                     0.40%          0.40%          0.40%           0.40%
- -------------------------------------------------------------------------------------------------------------
Total annual Fund operating expenses+                  0.75&          1.50%          1.50%           0.50%
- -------------------------------------------------------------------------------------------------------------
</TABLE>


+     The fees and expenses disclosed above do not reflect that the Investment
      Manager has agreed to assume all operating expenses (except for brokerage
      and 12b-1 fees) and to waive the compensation provided for in its
      Management Agreement until such time as the Fund has $50 million of net
      assets or six months from the date of commencement of the Fund's
      operations, whichever occurs first. However, the fees and expenses
      disclosed above do reflect that, thereafter, the Investment Manager has
      agreed under its Management Agreement with the Fund to assume the Fund's
      operating expenses (except for brokerage and 12b-1 fees) to the extent
      such operating expenses exceed on an annualized basis 0.50% of the average
      daily net assets of the Fund.



(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)   "Other Expenses" are based on estimated amounts for the Fund's current
      fiscal year.

                                        3


<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         IF YOU HELD YOUR
                   SHARES:                  SHARES:
             --------------------     ---------------------
<S>          <C>        <C>            <C>        <C>
              1 Year     3 Years        1 Year     3 Years
- ---------------------------------     ---------------------
 CLASS A      $598       $752            $598       $752
- ---------------------------------     ---------------------
 CLASS B      $653       $774            $153       $474
- ---------------------------------     ---------------------
 CLASS C      $253       $474            $153       $474
- ---------------------------------     ---------------------
 CLASS D      $51        $160            $51        $160
- ---------------------------------     ---------------------

</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 National Association of Securities
Dealers.



[GRAPHIC OMITTED]


ADDITIONAL INVESTMENT STRATEGY INFORMATION
- ------------------------------------------

This section provides additional information relating to the Fund's principal
strategies.


OPTIONS AND FUTURES. The Fund may invest in put and call options and futures
contracts. Options and futures may be used to assist in seeking performance
that corresponds to the performance of the Wilshire 5000 Total Market Index
and/or to assist in managing cash flows into and out of the Fund. Presently,
there are no options and futures on the Wilshire 5000 Total Market Index;
however, the Fund may use options and futures on other indexes that represent a
portion of the securities contained in the Wilshire 5000 Total Market Index.


TEMPORARY INVESTMENTS. The Fund also may invest up to 20% of its assets
temporarily in money market instruments when the Fund has received cash from
the sale of its shares pending investment of the cash, and to have investments
that are easily converted to cash to pay Fund shareholders who sell (redeem)
Fund shares.


The percentage limitations relating to the composition of the Fund's portfolio
apply at the time the Fund acquires an investment and refer to the Fund's net
assets, unless otherwise noted. 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.


                                       4

<PAGE>


[GRAPHIC OMITTED]



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



OPTIONS AND FUTURES.  Risks inherent in the use of options and futures may
include the possible imperfect correlation between the price of options and
futures contracts and movements in the prices of the securities owned by the
Fund or movements in the Wilshire 5000 Total Market Index (or any other
underlying index), and the possible absence of a liquid secondary market for
any particular instrument. Certain options may be over-the-counter options,
which are options negotiated with dealers; there is no secondary market for
these investments.


YEAR 2000. The Fund could be adversely affected if the computer systems
necessary for the efficient operation of the Investment Manager, the Fund's
other service providers and the markets and corporate and governmental issuers
in which the Fund invests do not properly process and calculate date-related
information from and after January 1, 2000. While year 2000-related computer
problems could have a negative effect on the Fund, the Investment Manager and
its affiliates are working hard to avoid any problems and to obtain assurances
from their service providers that they are taking similar steps.

In addition, it is possible that the markets for securities in which the Fund
invests may be detrimentally affected by computer failures throughout the
financial services industry beginning January 1, 2000. Improperly functioning
trading systems may result in settlement problems and liquidity issues. In
addition, corporate and governmental data processing errors may also result in
production problems for individual companies and overall economic
uncertainties. Earnings or revenues of individual issuers will be affected by
remediation costs, which may be substantial and may be reported inconsistently
in U.S. and foreign financial statements. Accordingly, the Fund's investments
may be adversely affected.

                                        5

<PAGE>






[GRAPHIC OMITTED]


FUND MANAGEMENT
- ---------------
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, New York 10048.


(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, has more than $137 billion in assets under management
or administration as of July 31, 1999.
(endsidebar)

The Fund's portfolio is managed within the Investment Manager's Growth Group.
Kevin Jung, a Vice President of the Investment Manager, is the primary
portfolio manager of the Fund. Mr. Jung has been a portfolio manager with the
Investment Manager since September, 1997. Prior to that he was a Vice President
and portfolio manager with UBS Asset Management (NY) Inc. from April, 1993
through August, 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 calculated daily by applying
the annual rate of 0.40% to the Fund's average daily net assets. The Investment
Manager has agreed to assume all operating expenses (except for brokerage and
12b-1 fees) and to waive the compensation provided for in its Management
Agreement until such time as the Fund has $50 million of net assets or six
months from the date of commencement of the Fund's operations, whichever occurs
first. Thereafter, the Investment Manager has agreed under its Management
Agreement with the Fund to assume Fund operating expenses (except for brokerage
and 12b-1 fees) to the extent that such operating expenses exceed 0.50% of the
average daily net assets of the Fund, which may reduce the investment management
fee below 0.40% of the Fund's average daily net assets. For example, if "other
expenses" are estimated to be 0.40% of the Fund's average daily net assets, then
the investment management fee rate paid by the Fund would equal 0.10% of the
Fund's average daily net assets. If in the future "other expenses" decline to
0.30% of the Fund's average daily net assets, the investment management fee paid
by the Fund would equal 0.20% of the Fund's average daily net assets.


                                       6

<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]


UNDERWRITING
- ------------

The Fund will initially offer its shares from approximately August 25, 1999
through September 23, 1999 in an underwriting by the Fund's Distributor, Morgan
Stanley Dean Witter Distributors Inc. as the Fund's principal underwriter.
During this period, you may place orders to buy shares through the Distributor;
however, shares will not be issued until the Closing Date, which will take
place on September 28, 1999 or on such later date as agreed upon by the Fund
and the Distributor. You are not obligated to pay for the shares prior to the
Closing Date. If any orders are accompanied by payment, the payment will be
returned to you, unless you request that such payment be invested in a Morgan
Stanley Dean Witter Money Market Fund. In such case the funds will be
automatically transferred from the Money Market Fund on the Closing Date. You
may cancel your order to purchase shares without penalty at any time prior to
the Closing Date. A continuous offering of the Fund's shares will begin
approximately two weeks after the Closing Date.


The Distributor will purchase Class B, Class C and Class D shares from the Fund
at $10.00 per share with all proceeds going to the Fund and will purchase Class
A shares at $10.00 per share plus a sales charge with the sales charge paid to
the Distributor and the net asset value of $10.00 per share going to the Fund.
The Distributor may also receive contingent deferred sales charges from future
redemptions of Class A, Class B and Class C shares.

The minimum number of Fund shares which may be purchased by any shareholder
during the initial offering period is 100 shares. Certificates for shares
purchased will not be issued unless requested by the shareholder in writing.

                                        7

<PAGE>


[GRAPHIC OMITTED]


HOW TO BUY SHARES
- -----------------
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.


(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 (800) THE-DEAN 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.msdw.com/individual/funds
(end sidebar)

(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)

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.


When you buy Fund shares, the shares are purchased at the next share price
calculated (less any applicable front-end sales charge) 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.



     MINIMUM INVESTMENT AMOUNTS

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
                                                                           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, or (3) 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

                                       8

<PAGE>


   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
   Total Market Index Fund.

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. 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 or Money Market
Fund. If a Morgan Stanley Dean Witter Fund is not listed, consult the inside
back cover of that Fund's Prospectus for its designation. For purposes of
exchanges, shares of FSC Funds (subject to a front-end sales charge) are
treated as Class A shares of a Multi-Class Fund.

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.

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.


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

                                        9

<PAGE>


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.


MARGIN ACCOUNTS. If you have pledged your Fund shares in a margin account,
contact your Morgan Stanely 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 the Fund's 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.

FREQUENT EXCHANGES. A pattern of frequent exchanges may result in the Fund
limiting or prohibiting, at its discretion, additional purchases and/or
exchanges. The Fund will notify you in advance of limiting your exchange
privileges.

CDSC CALCULATIONS ON EXCHANGES. See the "Share Class Arrangements" section of
this Prospectus for a 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.

                                       10

<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>
<S>                  <C>

 OPTIONS             PROCEDURES
- -------------------- -----------------------------------------------------------------------------------
 Contact Your        To sell your shares, simply call your Morgan Stanley Dean Witter Financial
 Financial Advisor   Advisor or other 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
 Withdrawal Plan     a total 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
 [GRAPHIC OMITTED]   amount is at least $25), on a monthly, 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.


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, payment of the sale proceeds may be delayed for the minimum
time needed to verify that the check has been honored (not more than fifteen
days from the time we receive the check).


                                       11

<PAGE>


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,
please contact your Morgan Stanley Dean Witter Financial Advisor or other
authorized financial representative regarding restrictions on the sale of such
shares.



[GRAPHIC OMITTED]


DISTRIBUTIONS
- -------------

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 temporary 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."

(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 declares income dividends separately for each Class. Distributions
paid on Class A and Class D shares 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. 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.

                                       12

<PAGE>


[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

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
full 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.


                                       13

<PAGE>


The chart below compares the sales charge and annual distribution (12b-1) fees
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 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 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 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>

                                       14

<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 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 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


                                       15

<PAGE>



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 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   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 Dean Witter Reynolds' Retirement Plan Services serves
    as recordkeeper under a written Recordkeeping Services Agreement ("MSDW
    Eligible Plans") which have at least 200 eligible employees.


o   A 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 purchase, and (2) the sale proceeds were maintained in the interim in
    cash or a money market fund.

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 individuals 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 individuals is
    a beneficiary.


                                       16

<PAGE>


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

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 "distribution:": (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, 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 a 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.

                                       17

<PAGE>


All waivers will be granted only following the 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 also 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
acquired in exchange for another Morgan Stanley Dean Witter Fund originally
purchased before May 1, 1997, however, will convert to Class A shares in May
2007.)


In the case of Class B shares held in a 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 you paid on those shares while in that Fund up to the amount of
any applicable CDSC.

                                       18

<PAGE>


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.

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 categories of investors:

o   Investors participating in the Investment Manager's mutual fund asset
    allocation program (subject to all of its terms and conditions, including
    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 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   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.

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.

                                       19

<PAGE>



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.

                                       20

<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!

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


GROWTH FUNDS
GROWTH FUNDS
Aggressive Equity Fund
American Opportunities Fund
Capital Growth Securities
Developing Growth Securities
Equity Fund
Growth Fund
Market Leader Trust
Mid-Cap Equity Trust
Small Cap Growth Fund
Special Value Fund
Value Fund
THEME FUNDS
Financial Services Trust
Health Sciences Trust
Information Fund
Natural Resource Development Securities
Precious Metals and Minerals Trust
GLOBAL/INTERNATIONAL FUNDS
Competitive Edge Fund - "Best Ideas" Portfolio
European Growth Fund
Fund of Funds - International Portfolio
International Fund
International SmallCap Fund
Japan Fund
Latin American Growth Fund
Pacific Growth Fund
- --------------------------------------------------------------------------------



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

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


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

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


There may be Funds created after this Prospectus was published. Please consult
the inside front 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>


MORGAN STANLEY DEAN WITTER
TOTAL MARKET INDEX FUND

     The Fund's Statement of Additional Information 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.msdw.com/individual/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 (800)
     SEC-0330. Reports and other information about the Fund are available on the
     SEC's Internet site (www.sec.gov), and copies of this information may be
     obtained, upon payment of a duplicating fee, by writing the Public
     Reference Section of the SEC, Washington, DC 20549-6009.









































(THE FUND'S INVESTMENT COMPANY ACT FILE NO. IS 811-9259)


<PAGE>


STATEMENT OF ADDITIONAL INFORMATION
                                       MORGAN STANLEY DEAN WITTER
                                       TOTAL MARKET INDEX FUND
AUGUST 4, 1999



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

     This Statement of Additional Information is not a Prospectus. The
Prospectus (dated August 4, 1999) for the Morgan Stanley Dean Witter Total
Market Index Fund may be obtained without charge from the Fund at its address
or telephone number listed below or from Dean Witter Reynolds at any of its
branch offices.





Morgan Stanley Dean Witter Total Market Index Fund
Two World Trade Center
New York, New York 10048
(800) 869-NEWS
<PAGE>

TABLE OF CONTENTS
- --------------------------------------------------------------------------------


<TABLE>
<S>                                                                                  <C>
I.    Fund History .................................................................   4
II.   Description of the Fund and Its Investments and Risks ........................   4
        A. Classification ..........................................................   4
        B. Investment Strategies and Risks .........................................   4
        C. Fund Policies/Investment Restrictions ...................................  11
III.  Management of the Fund .......................................................  13
        A. Board of Trustees .......................................................  13
        B. Management Information ..................................................  13
        C. Compensation ............................................................  17
IV.   Control Persons and Principal Holders of Securities ..........................  19
V.    Investment Management and Other Services .....................................  19
        A. Investment Manager ......................................................  19
        B. Principal Underwriter ...................................................  20
        C. Services Provided by the Investment Manager and Fund Expenses Paid by Third
           Parties .................................................................  20
        D. Dealer Reallowances .....................................................  21
        E. Rule 12b-1 Plan .........................................................  21
        F. Other Service Providers .................................................  24
VI.   Brokerage Allocation and Other Practices .....................................  25
        A. Brokerage Transactions ..................................................  25
        B. Commissions .............................................................  25
        C. Brokerage Selection .....................................................  25
VII.  Capital Stock and Other Securities ...........................................  26
VIII. Purchase, Redemption and Pricing of Shares ...................................  27
        A. Purchase/Redemption of Shares ...........................................  27
        B. Offering Price ..........................................................  27
IX.   Taxation of the Fund and Shareholders ........................................  28
X.    Underwriters .................................................................  30
XI.   Calculation of Performance Data ..............................................  31
XII.  Financial Statements .........................................................  32
</TABLE>


                                       2
<PAGE>

                      GLOSSARY OF SELECTED DEFINED TERMS

     The terms defined in this glossary are frequently used in this Statement
of Additional Information (other terms used occasionally are defined in the
text of the document).

     "Custodian" -- The Bank of New York.

     "Dean Witter Reynolds" -- Dean Witter Reynolds Inc., a wholly-owned
broker-dealer subsidiary of MSDW.

     "Distributor" -- Morgan Stanley Dean Witter Distributors Inc., a
wholly-owned broker-dealer subsidiary of MSDW.

     "Financial Advisors" -- Morgan Stanley Dean Witter authorized financial
services representatives.

     "Fund" -- Morgan Stanley Dean Witter Total Market Index Fund, a registered
open-end investment company.

     "Investment Manager" -- Morgan Stanley Dean Witter Advisors Inc., a
wholly-owned investment advisor subsidiary of MSDW.

     "Independent Trustees" -- Trustees who are not "interested persons" (as
defined by the Investment Company Act) of the Fund.

     "Morgan Stanley & Co." -- Morgan Stanley & Co. Incorporated, a
wholly-owned broker-dealer subsidiary of MSDW.

     "Morgan Stanley Dean Witter Funds" -- Registered investment companies (i)
for which the Investment Manager serves as the investment advisor; and (ii)
that hold themselves out to investors as related companies for investment and
investor services.

     "MSDW" -- Morgan Stanley Dean Witter & Co., a preeminent global financial
services firm.

   "MSDW Services Company" -- Morgan Stanley Dean Witter Services Company
Inc., a wholly-owned fund services subsidiary of the Investment Manager.

     "Transfer Agent" -- Morgan Stanley Dean Witter Trust FSB, a wholly-owned
transfer agent subsidiary of MSDW.

     "Trustees" -- The Board of Trustees of the Fund.

                                       3
<PAGE>

I. FUND HISTORY
- --------------------------------------------------------------------------------
     The Fund was organized as a Massachusetts business trust, under a
Declaration of Trust, on March 11, 1999.


II. DESCRIPTION OF THE FUND AND ITS INVESTMENTS AND RISKS
- --------------------------------------------------------------------------------

A. CLASSIFICATION


     The Fund is an open-end, diversified management investment company whose
investment objective is to provide investment results that, before expenses,
correspond to the total return of the Wilshire 5000 Equity Index.

B. INVESTMENT STRATEGIES AND RISKS

     The following discussion of the Fund's investment strategies and risks
should be read with the sections of the Fund's Prospectus titled "Principal
Investment Strategies," "Principal Risks," "Additional Investment Strategy
Information" and "Additional Risk Information."

     OPTIONS AND FUTURES TRANSACTIONS. The Fund may engage in transactions in
listed and OTC options. Listed options are issued or guaranteed by the exchange
on which they are traded or by a clearing corporation such as the Options
Clearing Corporation ("OCC"). Ownership of a listed call option gives the Fund
the right to buy from the OCC (in the U.S.) or other clearing corporation or
exchange, the underlying security or currency covered by the option at the
stated exercise price (the price per unit of the underlying security) by filing
an exercise notice prior to the expiration date of the option. The writer
(seller) of the option would then have the obligation to sell to the OCC (in
the U.S.) or other clearing corporation or exchange, the underlying security or
currency at that exercise price prior to the expiration date of the option,
regardless of its then current market price. Ownership of a listed put option
would give the Fund the right to sell the underlying security or currency to
the OCC (in the U.S.) or other clearing corporation or exchange, at the stated
exercise price. Upon notice of exercise of the put option, the writer of the
put would have the obligation to purchase the underlying security or currency
from the OCC (in the U.S.) or other clearing corporation or exchange, at the
exercise price.

     Covered Call Writing. The Fund is permitted to write covered call options
on portfolio securities and on the U.S. dollar and foreign currencies in which
they are denominated, without limit.

     The Fund will receive from the purchaser, in return for a call it has
written, a "premium;" i.e., the price of the option. Receipt of these premiums
may better enable the Fund to earn a higher level of current income than it
would earn from holding the underlying securities (or currencies) alone.
Moreover, the premium received will offset a portion of the potential loss
incurred by the Fund if the securities (or currencies) underlying the option
decline in value.

     The Fund may be required, at any time during the option period, to deliver
the underlying security (or currency) against payment of the exercise price on
any calls it has written. This obligation is terminated upon the expiration of
the option period or at such earlier time when the writer effects a closing
purchase transaction. A closing purchase transaction is accomplished by
purchasing an option of the same series as the option previously written.
However, once the Fund has been assigned an exercise notice, the Fund will be
unable to effect a closing purchase transaction.

     A call option is "covered" if the Fund owns the underlying security
subject to the option or has an absolute and immediate right to acquire that
security without additional cash consideration (or for additional consideration
(in cash, Treasury bills or other liquid portfolio securities) held in a
segregated account on the Fund's books) upon conversion or exchange of other
securities held in its portfolio. A call option is also covered if the Fund
holds a call on the same security as the call written where the exercise price
of the call held is (i) equal to or less than the exercise price of the call
written or (ii) greater than the exercise price of the call written if the
difference is maintained by the Fund in cash, Treasury bills or other liquid
portfolio securities in a segregated account on the Fund's books.

     Options written by the Fund normally have expiration dates of from up to
eighteen months from the date written. The exercise price of a call option may
be below, equal to or above the current market value of the underlying security
at the time the option is written.

     Covered Put Writing. As a writer of a covered put option, the Fund incurs
an obligation to buy the security underlying the option from the purchaser of
the put, at the option's exercise price at any time


                                       4
<PAGE>

during the option period, at the purchaser's election. Through the writing of a
put option, the Fund would receive income from the premium paid by purchasers.
The potential gain on a covered put option is limited to the premium received
on the option (less the commissions paid on the transaction). During the option
period, the Fund may be required, at any time, to make payment of the exercise
price against delivery of the underlying security (or currency). A put option
is "covered" if the Fund maintains cash, Treasury bills or other liquid
portfolio securities with a value equal to the exercise price in a segregated
account on the Fund's books, or holds a put on the same security as the put
written where the exercise price of the put held is equal to or greater than
the exercise price of the put written. The aggregate value of the obligations
underlying puts may not exceed 50% of the Fund's assets. The operation of and
limitations on covered put options in other respects are substantially
identical to those of call options.

     Purchasing Call and Put Options. The Fund may purchase listed and OTC call
and put options in amounts equaling up to 5% of its total assets. The purchase
of a call option would enable the Fund, in return for the premium paid to lock
in a purchase price for a security or currency during the term of the option.
The purchase of a put option would enable the Fund, in return for a premium
paid, to lock in a price at which it may sell a security or currency during the
term of the option.

     OTC Options. OTC options are purchased from or sold (written) to dealers
or financial institutions which have entered into direct agreements with the
Fund. With OTC options, such variables as expiration date, exercise price and
premium will be agreed upon between the Fund and the transacting dealer,
without the intermediation of a third party such as the OCC. The Fund will
engage in OTC option transactions only with member banks of the Federal Reserve
Bank System or primary dealers in U.S. Government securities or with affiliates
of such banks or dealers.

     Risks of Options Transactions. During the option period, the covered call
writer has, in return for the premium on the option, given up the opportunity
for capital appreciation above the exercise price should the market price of
the underlying security (or the value of its denominated currency) increase,
but has retained the risk of loss should the price of the underlying security
(or the value of its denominated currency) decline. The covered put writer also
retains the risk of loss should the market value of the underlying security
decline below the exercise price of the option less the premium received on the
sale of the option. In both cases, the writer has no control over the time when
it may be required to fulfill its obligation as a writer of the option. Prior
to exercise or expiration, an option position can only be terminated by
entering into a closing purchase or sale transaction. Once an option writer has
received an exercise notice, it cannot effect a closing purchase transaction in
order to terminate its obligation under the option and must deliver or receive
the underlying securities at the exercise price.

     The Fund's ability to close out its position as a writer of an option is
dependent upon the existence of a liquid secondary market on option exchanges.
There is no assurance that such a market will exist, particularly in the case
of OTC options.

     In the event of the bankruptcy of a broker through which the Fund engages
in transactions in options, the Fund could experience delays and/or losses in
liquidating open positions purchased or sold through the broker and/or incur a
loss of all or part of its margin deposits with the broker. In the case of OTC
options, if the transacting dealer fails to make or take delivery of the
securities underlying an option it has written, in accordance with the terms of
that option, due to insolvency or otherwise, the Fund would lose the premium
paid for the option as well as any anticipated benefit of the transaction.

     Each of the exchanges has established limitations governing the maximum
number of call or put options on the same underlying security which may be
written by a single investor, whether acting alone or in concert with others
(regardless of whether such options are written on the same or different
exchanges or are held or written on one or more accounts or through one or more
brokers). An exchange may order the liquidation of positions found to be in
violation of these limits and it may impose other sanctions or restrictions.
These position limits may restrict the number of listed options which the Fund
may write.

     The hours of trading for options may not conform to the hours during which
the underlying securities are traded. To the extent that the option markets
close before the markets for the underlying securities, significant price and
rate movements can take place in the underlying markets that cannot be
reflected in the option markets.

                                       5
<PAGE>

     Stock Index Options. The Fund may invest in options on broadly based
indexes. Options on stock indexes are similar to options on stock except that,
rather than the right to take or make delivery of stock at a specified price,
an option on a stock index gives the holder the right to receive, upon exercise
of the option, an amount of cash if the closing level of the stock index upon
which the option is based is greater than, in the case of a call, or less than,
in the case of a put, the exercise price of the option. This amount of cash is
equal to such difference between the closing price of the index and the
exercise price of the option expressed in dollars times a specified multiple.
The writer of the option is obligated, in return for the premium received, to
make delivery of this amount.

     Risks of Options on Indexes. Because exercises of stock index options are
settled in cash, the Fund could not, if it wrote a call option, provide in
advance for its potential settlement obligations by acquiring and holding the
underlying securities. A call writer can offset some of the risk of its writing
position by holding a diversified portfolio of stocks similar to those on which
the underlying index is based. However, most investors cannot, as a practical
matter, acquire and hold a portfolio containing exactly the same stocks as the
underlying index, and, as a result, bear a risk that the value of the
securities held will vary from the value of the index. Even if an index call
writer could assemble a stock portfolio that exactly reproduced the composition
of the underlying index, the writer still would not be fully covered from a
risk standpoint because of the "timing risk" inherent in writing index options.

     When an index option is exercised, the amount of cash that the holder is
entitled to receive is determined by the difference between the exercise price
and the closing index level on the date when the option is exercised. As with
other kinds of options, the writer will not learn that it had been assigned
until the next business day, at the earliest. The time lag between exercise and
notice of assignment poses no risk for the writer of a covered call on a
specific underlying security, such as a common stock, because there the
writer's obligation is to deliver the underlying security, not to pay its value
as of a fixed time in the past. So long as the writer already owns the
underlying security, it can satisfy its settlement obligations by simply
delivering it, and the risk that its value may have declined since the exercise
date is borne by the exercising holder. In contrast, even if the writer of an
index call holds stocks that exactly match the composition of the underlying
index, it will not be able to satisfy its assignment obligations by delivering
those stocks against payment of the exercise price. Instead, it will be
required to pay cash in an amount based on the closing index value on the
exercise date; and by the time it learns that it has been assigned, the index
may have declined, with a corresponding decrease in the value of its stock
portfolio. This "timing risk" is an inherent limitation on the ability of index
call writers to cover their risk exposure by holding stock positions.

     A holder of an index option who exercises it before the closing index
value for that day is available runs the risk that the level of the underlying
index may subsequently change. If a change causes the exercised option to fall
out-of-the-money, the exercising holder will be required to pay the difference
between the closing index value and the exercise price of the option (times the
applicable multiplier) to the assigned writer.

     If dissemination of the current level of an underlying index is
interrupted, or if trading is interrupted in stocks accounting for a
substantial portion of the value of an index, the trading of options on that
index will ordinarily be halted. If the trading of options on an underlying
index is halted, an exchange may impose restrictions prohibiting the exercise
of such options.

     Futures Contracts. The Fund may purchase and sell interest rate, currency
and index futures contracts that are traded on U.S. and foreign commodity
exchanges on such underlying securities as U.S. Treasury bonds, notes, bills
and GNMA Certificates and/or any foreign government fixed-income security, on
various currencies and on such indexes of U.S. and foreign securities as may
exist or come into existence.

     A futures contract purchaser incurs an obligation to take delivery of a
specified amount of the obligation underlying the contract at a specified time
in the future for a specified price. A seller of a futures contract incurs an
obligation to deliver the specified amount of the underlying obligation at a
specified time in return for an agreed upon price. The purchase of a futures
contract enables the Fund, during the term of the contract, to lock in a price
at which it may purchase a security or currency and protect against a rise in
prices pending purchase of portfolio securities. The sale of a futures contract
enables the Fund to lock in a price at which it may sell a security or currency
and protect against declines in the value of portfolio securities.


                                       6
<PAGE>

     Although most futures contracts call for actual delivery or acceptance of
securities, the contracts usually are closed out before the settlement date
without the making or taking of delivery. Index futures contracts provide for
the delivery of an amount of cash equal to a specified dollar amount times the
difference between the index value at the open or close of the last trading day
of the contract and the futures contract price. A futures contract sale is
closed out by effecting a futures contract purchase for the same aggregate
amount of the specific type of security (currency) and the same delivery date.
If the sale price exceeds the offsetting purchase price, the seller would be
paid the difference and would realize a gain. If the offsetting purchase price
exceeds the sale price, the seller would pay the difference and would realize a
loss. Similarly, a futures contract purchase is closed out by effecting a
futures contract sale for the same aggregate amount of the specific type of
security (currency) and the same delivery date. If the offsetting sale price
exceeds the purchase price, the purchaser would realize a gain, whereas if the
purchase price exceeds the offsetting sale price, the purchaser would realize a
loss. There is no assurance that the Fund will be able to enter into a closing
transaction.

     Margin. If the Fund enters into a futures contract, it is initially
required to deposit an "initial margin" of cash or U.S. Government securities
or other liquid portfolio securities ranging from approximately 2% to 5% of the
contract amount. Initial margin requirements are established by the exchanges
on which futures contracts trade and may, from time to time, change. In
addition, brokers may establish margin deposit requirements in excess of those
required by the exchanges.

     Initial margin in futures transactions is different from margin in
securities transactions in that initial margin does not involve the borrowing
of funds by a broker's client but is, rather, a good faith deposit on the
futures contract which will be returned to the Fund upon the proper termination
of the futures contract. The margin deposits made are marked to market daily
and the Fund may be required to make subsequent deposits of cash or U.S.
Government securities, called "variation margin," which are reflective of price
fluctuations in the futures contract.

     Options on Futures Contracts. The Fund may purchase and write call and put
options on futures contracts and enter into closing transactions with respect
to such options to terminate an existing position. An option on a futures
contract gives the purchaser the right (in return for the premium paid), and
the writer the obligation, to assume a position in a futures contract (a long
position if the option is a call and a short position if the option is a put)
at a specified exercise price at any time during the term of the option. Upon
exercise of the option, the delivery of the futures position by the writer of
the option to the holder of the option is accompanied by delivery of the
accumulated balance in the writer's futures margin account, which represents
the amount by which the market price of the futures contract at the time of
exercise exceeds, in the case of a call, or is less than, in the case of a put,
the exercise price of the option on the futures contract.

     The writer of an option on a futures contract is required to deposit
initial and variation margin pursuant to requirements similar to those
applicable to futures contracts. Premiums received from the writing of an
option on a futures contract are included in initial margin deposits.

     Limitations on Futures Contracts and Options on Futures. The Fund may not
enter into futures contracts or purchase related options thereon if,
immediately thereafter, the amount committed to margin plus the amount paid for
premiums for unexpired options on futures contracts exceeds 5% of the value of
the Fund's total assets, after taking into account unrealized gains and
unrealized losses on such contracts it has entered into, provided, however,
that in the case of an option that is in-the-money (the exercise price of the
call (put) option is less (more) than the market price of the underlying
security) at the time of purchase, the in-the-money amount may be excluded in
calculating the 5%. However, there is no overall limitation on the percentage
of the Fund's net assets which may be subject to a hedge position.

     Risks of Transactions in Futures Contracts and Related Options. The prices
of securities and indexes subject to futures contracts (and thereby the futures
contract prices) may correlate imperfectly with the behavior of the cash prices
of the Fund's portfolio securities (and the currencies in which they are
denominated). Also, prices of futures contracts may not move in tandem with the
changes in prevailing interest rates, market movements and/or currency exchange
rates against which the Fund

                                       7
<PAGE>

seeks a hedge. A correlation may also be distorted (a) temporarily, by
short-term traders' seeking to profit from the difference between a contract or
security price objective and their cost of borrowed funds; (b) by investors in
futures contracts electing to close out their contracts through offsetting
transactions rather than meet margin deposit requirements; (c) by investors in
futures contracts opting to make or take delivery of underlying securities
rather than engage in closing transactions, thereby reducing liquidity of the
futures market; and (d) temporarily, by speculators who view the deposit
requirements in the futures markets as less onerous than margin requirements in
the cash market. Due to the possibility of price distortion in the futures
market and because of the possible imperfect correlation between movements in
the prices of securities and movements in the prices of futures contracts, a
correct forecast of interest rate, currency exchange rate and/or market
movement trends by the Investment Manager may still not result in a successful
hedging transaction.

     There is no assurance that a liquid secondary market will exist for
futures contracts and related options in which the Fund may invest. In the
event a liquid market does not exist, it may not be possible to close out a
futures position and, in the event of adverse price movements, the Fund would
continue to be required to make daily cash payments of variation margin. The
absence of a liquid market in futures contracts might cause the Fund to make or
take delivery of the underlying securities (currencies) at a time when it may
be disadvantageous to do so.

     Exchanges also limit the amount by which the price of a futures contract
may move on any day. If the price moves equal the daily limit on successive
days, then it may prove impossible to liquidate a futures position until the
daily limit moves have ceased. In the event of adverse price movements, the
Fund would continue to be required to make daily cash payments of variation
margin on open futures positions. In these situations, if the Fund has
insufficient cash, it may have to sell portfolio securities to meet daily
variation margin requirements at a time when it may be disadvantageous to do
so. In addition, the Fund may be required to take or make delivery of the
instruments underlying interest rate futures contracts it holds at a time when
it is disadvantageous to do so. The inability to close out options and futures
positions could also have an adverse impact on the Fund's ability to
effectively hedge its portfolio.

     In the event of the bankruptcy of a broker through which the Fund engages
in transactions in futures or options thereon, the Fund could experience delays
and/or losses in liquidating open positions purchased or sold through the
broker and/or incur a loss of all or part of its margin deposits with the
broker.


     If the Fund maintains a short position in a futures contract or has sold a
call option in a futures contract, it will cover this position by holding, in a
segregated account maintained on the books of the Fund, cash, U.S. government
securities or other liquid portfolio securities equal in value (when added to
any initial or variation margin on deposit) to the market value of the
securities underlying the futures contract or the exercise price of the option.
Such a position may also be covered by owning the securities underlying the
futures contract (in the case of a stock index futures contract a portfolio of
securities substantially replicating the relevant index), or by holding a call
option permitting the Fund to purchase the same contract at a price no higher
than the price at which the short position was established.

     In addition, if the Fund holds a long position in a futures contract or
has sold a put option on a futures contract, it will hold cash, U.S. government
securities or other liquid portfolio securities equal to the purchase price of
the contract or the exercise price of the put option (less the amount of
initial or variation margin on deposit) in a segregated account maintained on
the books of the Fund. Alternatively, the Fund could cover its long position by
purchasing a put option on the same futures contract with an exercise price as
high or higher than the price of the contract held by the Fund.


     MONEY MARKET SECURITIES. The Fund may invest up to 20% of its assets in
various money market securities for cash management purposes or when assuming a
temporary defensive position, which among others may include commercial paper,
bank acceptances, bank obligations, corporate debt securities, certificates of
deposit, U.S. Government securities, obligations of savings institutions and
repurchase agreements. Such securities are limited to:

     U.S. Government Securities. Obligations issued or guaranteed as to
principal and interest by the United States or its agencies (such as the
Export-Import Bank of the United States, Federal Housing Administration and
Government National Mortgage Association) or its instrumentalities (such as the
Federal Home Loan Bank), including Treasury bills, notes and bonds;

                                       8
<PAGE>

     Bank Obligations. Obligations (including certificates of deposit, time
deposits and bankers' acceptances) of banks subject to regulation by the U.S.
Government and having total assets of $1 billion or more, and instruments
secured by such obligations, not including obligations of foreign branches of
domestic banks except to the extent below;

     Eurodollar Certificates of Deposit. Eurodollar certificates of deposit
issued by foreign branches of domestic banks having total assets of $1 billion
or more;

     Obligations of Savings Institutions. Certificates of deposit of savings
banks and savings and loan associations, having total assets of $1 billion or
more;

     Fully Insured Certificates of Deposit. Certificates of deposit of banks
and savings institutions, having total assets of less than $1 billion, if the
principal amount of the obligation is federally insured by the Bank Insurance
Fund or the Savings Association Insurance Fund (each of which is administered
by the FDIC), limited to $100,000 principal amount per certificate and to 10%
or less of the Fund's total assets in all such obligations and in all illiquid
assets, in the aggregate;


     Commercial Paper. Commercial paper rated within the two highest grades by
Standard & Poor's Corporation ("S&P") or the two highest grade by Moody's
Investors Service, Inc. ("Moody's") or, if not rated, issued by a company
having an outstanding debt issue rated at least AA by S&P or Aa by Moody's; and



     REPURCHASE AGREEMENTS. The Fund may invest in repurchase agreements. When
cash may be available for only a few days, it may be invested by the Fund in
repurchase agreements until such time as it may otherwise be invested or used
for payments of obligations of the Fund. These agreements, which may be viewed
as a type of secured lending by the Fund, typically involve the acquisition by
the Fund of debt securities from a selling financial institution such as a
bank, savings and loan association or broker-dealer. The agreement provides
that the Fund will sell back to the institution, and that the institution will
repurchase, the underlying security serving as collateral at a specified price
and at a fixed time in the future, usually not more than seven days from the
date of purchase. The collateral will be marked-to-market daily to determine
that the value of the collateral, as specified in the agreement, does not
decrease below the purchase price plus accrued interest. If such decrease
occurs, additional collateral will be requested and, when received, added to
the account to maintain full collateralization. The Fund will accrue interest
from the institution until the time when the repurchase is to occur. Although
this date is deemed by the Fund to be the maturity date of a repurchase
agreement, the maturities of securities subject to repurchase agreements are
not subject to any limits.


     While repurchase agreements involve certain risks not associated with
direct investments in debt securities, the Fund follows procedures designed to
minimize such risks. These procedures include effecting repurchase transactions
only with large, well-capitalized and well-established financial institutions
whose financial condition will be continually monitored by the Investment
Manager subject to procedures established by the Trustees. In addition, as
described above, the value of the collateral underlying the repurchase
agreement will be at least equal to the repurchase price, including any accrued
interest earned on the repurchase agreement. In the event of a default or
bankruptcy by a selling financial institution, the Fund will seek to liquidate
such collateral. However, the exercising of the Fund's right to liquidate such
collateral could involve certain costs or delays and, to the extent that
proceeds from any sale upon a default of the obligation to repurchase were less
than the repurchase price, the Fund could suffer a loss. It is the current
policy of the Fund not to invest in repurchase agreements that do not mature
within seven days if any such investment, together with any other illiquid
assets held by the Fund, amounts to more than 15% of its net assets.


     CONVERTIBLE SECURITIES. The Fund may invest in fixed-income securities
which are convertible into common stock of the issuer. Convertible securities
rank senior to common stocks in a corporation's capital structure and,
therefore, entail less risk than the corporation's common stock. The value of a
convertible security is a function of its "investment value" (its value as if
it did not have a conversion privilege), and its "conversion value" (the
security's worth if it were to be exchanged for the underlying security, at
market value, pursuant to its conversion privilege).

                                       9
<PAGE>


     To the extent that a convertible security's investment value is greater
than its conversion value, its price will be primarily a reflection of such
investment value and its price will be likely to increase when interest rates
fall and decrease when interest rates rise, as with a fixed-income security
(the credit standing of the issuer and other factors may also have an effect on
the convertible security's value). If the conversion value exceeds the
investment value, the price of the convertible security will rise above its
investment value and, in addition, will sell at some premium over its
conversion value. (This premium represents the price investors are willing to
pay for the privilege of purchasing a fixed-income security with a possibility
of capital appreciation due to the conversion privilege.) At such times the
price of the convertible security will tend to fluctuate directly with the
price of the underlying equity security. Convertible securities may be
purchased by the Fund at varying price levels above their investment values
and/or their conversion values in keeping with the Fund's objective.


     WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS. From
time to time the Fund may purchase securities on a when-issued or delayed
delivery basis or may purchase or sell securities on a forward commitment
basis. When these transactions are negotiated, the price is fixed at the time
of the commitment, but delivery and payment can take place a month or more
after the date of commitment. While the Fund will only purchase securities on a
when-issued, delayed delivery or forward commitment basis with the intention of
acquiring the securities, the Fund may sell the securities before the
settlement date, if it is deemed advisable. The securities so purchased or sold
are subject to market fluctuation and no interest or dividends accrue to the
purchaser prior to the settlement date.

     At the time the Fund makes the commitment to purchase or sell securities
on a when-issued, delayed delivery or forward commitment basis, it will record
the transaction and thereafter reflect the value, each day, of such security
purchased, or if a sale, the proceeds to be received, in determining its net
asset value. At the time of delivery of the securities, their value may be more
or less than the purchase or sale price. An increase in the percentage of the
Fund's assets committed to the purchase of securities on a when-issued, delayed
delivery or forward commitment basis may increase the volatility of its net
asset value. The Fund will also establish a segregated account on the Fund's
books in which it will continually maintain cash or cash equivalents or other
liquid portfolio securities equal in value to commitments to purchase
securities on a when-issued, delayed delivery or forward commitment basis.

     WHEN, AS AND IF ISSUED SECURITIES. The Fund may purchase securities on a
"when, as and if issued" basis under which the issuance of the security depends
upon the occurrence of a subsequent event, such as approval of a merger,
corporate reorganization or debt restructuring. The commitment for the purchase
of any such security will not be recognized in the portfolio of the Fund until
the Investment Manager determines that issuance of the security is probable. At
that time, the Fund will record the transaction and, in determining its net
asset value, will reflect the value of the security daily. At that time, the
Fund will also establish a segregated account on the Fund's books in which it
will maintain cash or cash equivalents or other liquid portfolio securities
equal in value to recognized commitments for such securities.

     The value of the Fund's commitments to purchase the securities of any one
issuer, together with the value of all securities of such issuer owned by the
Fund, may not exceed 5% of the value of the Fund's total assets at the time the
initial commitment to purchase such securities is made. An increase in the
percentage of the Fund's total assets committed to the purchase of securities
on a "when, as and if issued" basis may increase the volatility of its net
asset value. The Fund may also sell securities on a "when, as and if issued"
basis provided that the issuance of the security will result automatically from
the exchange or conversion of a security owned by the Fund at the time of sale.


     PRIVATE PLACEMENTS AND RESTRICTED SECURITIES. The Fund may invest up to
15% of its net assets in securities which are subject to restrictions on resale
because they have not been registered under the Securities Act of 1933 (the
"Securities Act"), or which are otherwise not readily marketable. (Securities
eligible for resale pursuant to Rule 144A under the Securities Act, and
determined to be liquid pursuant to the procedures discussed in the following
paragraph, are not subject to the foregoing restriction.) These securities are
generally referred to as "private placements" or "restricted securities."
Limitations

                                       10
<PAGE>

on the resale of these securities may have an adverse effect on their
marketability, and may prevent the Fund from disposing of them promptly at
reasonable prices. The Fund may have to bear the expense of registering the
securities for resale and the risk of substantial delays in effecting the
registration.

     Rule 144A permits the Fund to sell restricted securities to qualified
institutional buyers without limitation. The Adviser, pursuant to procedures
adopted by the Trustees, will make a determination as to the liquidity of each
restricted security purchased by the Fund. If a restricted security is
determined to be "liquid," the security will not be included within the
category "illiquid securities," which under current policy may not exceed 15%
of the Fund's net assets. However, investing in Rule 144A securities could have
the effect of increasing the level of Fund illiquidity to the extent the Fund,
at a particular point in time, may be unable to find qualified institutional
buyers interested in purchasing such securities.

     WARRANTS AND SUBSCRIPTION RIGHTS. The Fund may acquire warrants and
subscription rights attached to other securities without limit. A warrant is,
in effect, an option to purchase equity securities at a specific price,
generally valid for a specific period of time, and has no voting rights, pays
no dividends and has no rights with respect to the corporation issuing it.

     A subscription right is a privilege granted to existing shareholders of a
corporation to subscribe to shares of a new issue of common stock before it is
offered to the public. A subscription right normally has a life of two to four
weeks and a subscription price lower than the current market value of the
common stock. A subscription right is freely transferable. The Fund may invest
up to 5% of the value of its net assets in rights.

     YEAR 2000. The investment management services provided to the Fund by the
Investment Manager and the services provided to shareholders by the Distributor
and the Transfer Agent depend on the smooth functioning of their computer
systems. Many computer software systems in use today cannot recognize the year
2000, but revert to 1900 or some other date, due to the manner in which dates
were encoded and calculated. That failure could have a negative impact on the
handling of securities trades, pricing and account services. The Investment
Manager, the Distributor and the Transfer Agent have been actively working on
necessary changes to their own computer systems to prepare for the year 2000
and expect that their systems will be adapted before that date, but there can
be no assurance that they will be successful, or that interaction with other
non-complying computer systems will not impair their services at that time.

     In addition, it is possible that the markets for securities in which the
Fund invests may be detrimentally affected by computer failures throughout the
financial services industry beginning January 1, 2000. Improperly functioning
trading systems may result in settlement problems and liquidity issues.
Corporate and governmental data processing errors may result in production
problems for individual companies and overall economic uncertainties. Earnings
of individual issuers will be affected by remediation costs, which may be
substantial and may be reported inconsistently in U.S. and foreign financial
statements. Accordingly, the Fund's investments may be adversely affected.


C. FUND POLICIES/INVESTMENT RESTRICTIONS

     The investment objective, policies and restrictions listed below have been
adopted by the Fund as fundamental policies. Under the Investment Company Act
of 1940 (the "Investment Company Act"), a fundamental policy may not be changed
without the vote of a majority of the outstanding voting securities of the
Fund. The Investment Company Act defines a majority as the lesser of (a) 67% or
more of the shares present at a meeting of shareholders, if the holders of 50%
of the outstanding shares of the Fund are present or represented by proxy; or
(b) more than 50% of the outstanding shares of the Fund. For purposes of the
following restrictions: (i) all percentage limitations apply immediately after
a purchase or initial investment; and (ii) any subsequent change in any
applicable percentage resulting from market fluctuations or other changes in
total or net assets does not require elimination of any security from the
portfolio.

                                       11
<PAGE>

   The Fund will:

    1. Seek to provide investment results that, before expenses, correspond to
       the total return of the Wilshire 5000 Equity Index.

   The Fund may not:

    1. With respect to 75% of its total assets, invest more than 5% of the
       value of its total assets in the securities of any one issuer (other
       than obligations issued, or guaranteed by, the United States Government,
       its agencies or instrumentalities).

    2. With respect to 75% of its total assets, purchase more than 10% of all
       outstanding voting securities or any class of securities of any one
       issuer.

    3. Invest 25% or more of the value of its total assets in securities of
       issuers in any one industry. This restriction does not apply to
       obligations issued or guaranteed by the United States Government, its
       agencies or instrumentalities or to cash equivalents.


    4. Purchase or sell real estate or interests therein (including limited
       partnership interests), although the Fund may purchase securities of
       issuers which engage in real estate operations and securities secured by
       real estate or interests therein.


    5. Purchase or sell commodities, except that the Fund may purchase or sell
       (write) futures contracts and related options thereon.


    6. Borrow money, except that the Fund may borrow from a bank for temporary
       or emergency purposes, in amounts not exceeding 5% (taken at the lower
       of cost or current value) of its total assets (not including the amount
       borrowed).


    7. Pledge its assets or assign or otherwise encumber them except to secure
       permitted borrowings. For the purpose of this restriction, collateral
       arrangements with respect to the writing of options and collateral
       arrangements with respect to initial or variation margin for futures are
       not deemed to be pledges of assets.


    8. Issue senior securities as defined in the Investment Company Act,
       except insofar as the Fund may be deemed to have issued a senior
       security by reason of: (a) entering into any repurchase agreement; (b)
       borrowing money in accordance with restrictions described above; or (c)
       lending portfolio securities.


    9. Make loans of money or securities, except: (a) by the purchase of debt
       obligations in which the Fund may invest consistent with its investment
       objective and policies; (b) by investment in repurchase agreements; or
       (c) by lending its portfolio securities.


   10. Purchase securities on margin, except for short-term loans as are
       necessary for the clearance of portfolio securities. The deposit or
       payment by the Fund of initial or variation margin in connection with
       futures contracts or related options thereon is not considered the
       purchase of a security on margin.


   11. Engage in the underwriting of securities, except insofar as the Fund
       may be deemed an underwriter under the Securities Act in disposing of a
       portfolio security.


   12. Purchase securities of other investment companies unless immediately
       thereafter not more than (a) 5% of the Fund's total assets would be
       invested in such company; and (b) 10% of the Fund's total assets would
       be invested in such securities. Investments in connection with a merger,
       consolidation, reorganization or acquisition of assets are not subject
       to this restriction.

    As a non-fundamental policy the Fund may not:

     1. Invest for the purpose of exercising control or management of any
   other issuer.

     2. Make short sales.

                                       12
<PAGE>

     Notwithstanding any other investment policy or restriction, the Fund may
seek to achieve its investment objective by investing all or substantially all
of its assets in another investment company having substantially the same
investment objective and policies as the Fund.


III. MANAGEMENT OF THE FUND
- --------------------------------------------------------------------------------

A. BOARD OF TRUSTEES

     The Board of Trustees of the Fund oversees the management of the Fund but
does not itself manage the Fund. The Trustees review various services provided
by or under the direction of the Investment Manager to ensure that the Fund's
general investment policies and programs are properly carried out. The Trustees
also conduct their review to ensure that administrative services are provided
to the Fund in a satisfactory manner.

     Under state law, the duties of the Trustees are generally characterized as
a duty of loyalty and a duty of care. The duty of loyalty requires a Trustee to
exercise his or her powers in the interest of the Fund and not the Trustee's
own interest or the interest of another person or organization. A Trustee
satisfies his or her duty of care by acting in good faith with the care of an
ordinarily prudent person and in a manner the Trustee reasonably believes to be
in the best interest of the Fund and its shareholders.


B. MANAGEMENT INFORMATION

     TRUSTEES AND OFFICERS. The Board of the Fund consists of eight (8)
Trustees. These same individuals also serve as directors or trustees for all of
the Morgan Stanley Dean Witter Funds. Six Trustees (75% of the total number)
have no affiliation or business connection with the Investment Manager or any
of its affiliated persons and do not own any stock or other securities issued
by the Investment Manager's parent company, MSDW. These are the
"non-interested" or "independent" Trustees. The other two Trustees (the
"management Trustees") are affiliated with the Investment Manager. All of the
Independent Trustees also serve as Independent Trustees of "Discover Brokerage
Index Series," a mutual fund for which the Investment Manager is the investment
advisor.

     The Trustees and executive officers of the Fund, their principal business
occupations during the last five years and their affiliations, if any, with the
Investment Manager, and with the 90 Morgan Stanley Dean Witter Funds and
Discover Brokerage Index Series are shown below.


<TABLE>
<CAPTION>
 NAME, AGE, POSITION WITH FUND AND ADDRESS        PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- -------------------------------------------   ---------------------------------------------------
<S>                                           <C>
Michael Bozic (58) ........................   Vice Chairman of Kmart Corporation (since
Trustee                                       December, 1998); Director of Trustee of the Morgan
c/o Kmart Corporation                         Stanley Dean Witter Funds and Discover Brokerage
3100 West Big Beaver Road                     Index Series; formerly Chairman and Chief
Troy, Michigan                                Executive Officer of Levitz Furniture Corporation
                                              (November, 1995-November, 1998) and President
                                              and Chief Executive Officer of Hills Department
                                              Stores (May, 1991-July, 1995); formerly variously
                                              Chairman, Chief Executive Officer, President and
                                              Chief Operating Officer (1987-1991) of the Sears
                                              Merchandise Group of Sears, Roebuck and Co.;
                                              Director of Eaglemark Financial Services, Inc. and
                                              Weirton Steel Corporation.
</TABLE>

                                       13
<PAGE>

<TABLE>
<CAPTION>
 NAME, AGE, POSITION WITH FUND AND ADDRESS        PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- -------------------------------------------   ----------------------------------------------------
<S>                                           <C>
Charles A. Fiumefreddo* (66) ..............   Chairman, Director or Trustee and Chief Executive
Chairman of the Board                         Officer of the Morgan Stanley Dean Witter Funds
Chief Executive Officer and Trustee           and Discover Brokerage Index Series; formerly
Two World Trade Center                        Chairman, Chief Executive Officer and Director of
New York, New York                            the Investment Manager, the Distributor and MSDW
                                              Services Company; Executive Vice President and
                                              Director of Dean Witter Reynolds; Chairman and
                                              Director of the Transfer Agent; formerly Director
                                              and/or officer of various MSDW subsidiaries (until
                                              June, 1998).

Edwin J. Garn (66) ........................   Director or Trustee of the Morgan Stanley Dean
Trustee                                       Witter Funds and Discover Brokerage Index Series;
c/o Huntsman Corporation                      formerly United States Senator (R-Utah)
500 Huntsman Way                              (1974-1992) and Chairman, Senate Banking
Salt Lake City, Utah                          Committee (1980-1986); formerly Mayor of Salt
                                              Lake City, Utah (1971-1974); formerly Astronaut,
                                              Space Shuttle Discovery (April 12-19, 1985); Vice
                                              Chairman, Huntsman Corporation (chemical
                                              company); Director of Franklin Covey (time
                                              management systems), BMW Bank of North
                                              America, Inc. (industrial loan corporation), United
                                              Space Alliance (joint venture between Lockheed
                                              Martin and the Boeing Company) and Nuskin Asia
                                              Pacific (multilevel marketing); member of the board
                                              of various civic and charitable organizations.

Wayne E. Hedien (65) ......................   Retired; Director or Trustee of the Morgan Stanley
Trustee                                       Dean Witter Funds and Discover Brokerage Index
c/o Mayer, Brown & Platt                      Series; Director of The PMI Group, Inc. (private
Counsel to the Independent Trustees           mortgage insurance); Trustee and Vice Chairman
1675 Broadway                                 of The Field Museum of Natural History; formerly
New York, New York                            associated with the Allstate Companies
                                              (1966-1994), most recently as Chairman of The
                                              Allstate corporation (March, 1993-December, 1994)
                                              and Chairman and Chief Executive Officer of its
                                              wholly-owned subsidiary, Allstate Insurance
                                              Company (July, 1989-December, 1994); director of
                                              various other business and charitable
                                              organizations.

Dr. Manuel H. Johnson (50) ................   Senior Partner, Johnson Smick International, Inc.,
Trustee                                       a consulting firm; Co-Chairman and a founder of
c/o Johnson Smick International, Inc.         the Group of Seven Council (G7C), an international
1133 Connecticut Avenue, N.W.                 economic commission; Chairman of the Audit
Washington, D.C.                              Committee and Director or Trustee of the Morgan
                                              Stanley Dean Witter Funds and Discover Brokerage
                                              Index Series; Director of Greenwich Capital
                                              Markets, Inc. (broker-dealer) and NVR, Inc. (home
                                              construction); Chairman and Trustee of the
                                              Financial Accounting Foundation (oversight
                                              organization of the Financial Accounting Standards
                                              Board); formerly Vice Chairman of the Board of
                                              Governors of the Federal Reserve System
                                              (1986-1990) and Assistant Secretary of the U.S.
                                              Treasury.
</TABLE>

                                       14
<PAGE>



<TABLE>
<CAPTION>
 NAME, AGE, POSITION WITH FUND AND ADDRESS         PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- -------------------------------------------   ------------------------------------------------------
<S>                                           <C>
Michael E. Nugent (63) ....................   General Partner, Triumph Capital, L.P., a private
Trustee                                       investment partnership; Chairman of the Insurance
c/o Triumph Capital, L.P.                     Committee and Director or Trustee of the Morgan
237 Park Avenue                               Stanley Dean Witter Funds and Discover Brokerage
New York, New York                            Index Series; formerly Vice President, Bankers
                                              Trust Company and BT Capital Corporation
                                              (1984-1988); director of various business
                                              organizations.

Philip J. Purcell* (55) ...................   Chairman of the Board of Directors and Chief
Trustee                                       Executive Officer of MSDW, Dean Witter Reynolds
1585 Broadway                                 and Novus Credit Services Inc.; Director of the
New York, New York                            Distributor; Director or Trustee of the Morgan
                                              Stanley Dean Witter Funds and Discover Brokerage
                                              Index Series; Director and/or officer of various
                                              MSDW subsidiaries.

John L. Schroeder (69) ....................   Retired; Chairman of the Derivatives Committee
Trustee                                       and Director or Trustee of the Morgan Stanley
c/o Mayer, Brown & Platt                      Dean Witter Funds and Discover Brokerage Index
Counsel to the Independent Trustees           Series; Director of Citizens Utilities Company
1675 Broadway                                 (telecommunications, gas, electric and water
New York, New York                            utilities company); formerly Executive Vice
                                              President and Chief Investment Officer of Home
                                              Insurance Company (August, 1991-September,
                                              1995).

Mitchell M. Merin (45) ....................   President and Chief Operating Officer of Asset
President                                     Management of MSDW (since December, 1998);
Two World Trade Center                        President and Director (since April, 1997) and
New York, New York                            Chief Executive Officer (since June, 1998) of the
                                              Investment Manager and MSDW Services
                                              Company; Chairman, Chief Executive Officer and
                                              Director of the Distributor (since June, 1998);
                                              Chairman and Chief Executive Officer (since June,
                                              1998) and Director (since January, 1998) of the
                                              Transfer Agent; Director of various MSDW
                                              subsidiaries; President of the Morgan Stanley Dean
                                              Witter Funds and Discover Brokerage Index Series
                                              (since May, 1999); previously Chief Strategic Officer
                                              of the Investment Manager and MSDW Services
                                              Company and Executive Vice President of the
                                              Distributor (April, 1997-June, 1998), Vice President
                                              of the Morgan Stanley Dean Witter Funds and
                                              Discover Brokerage Index Series (May, 1997-April,
                                              1999), and Executive Vice President of Dean
                                              Witter, Discover & Co.
</TABLE>


                                       15
<PAGE>


<TABLE>
<CAPTION>
 NAME, AGE, POSITION WITH FUND AND ADDRESS        PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- -------------------------------------------   ----------------------------------------------------
<S>                                           <C>
Barry Fink (44) ...........................   Senior Vice President (since March, 1997) and
Vice President,                               Secretary and General Counsel (since February,
Secretary and General Counsel                 1997) and Director (since July, 1998) of the
Two World Trade Center                        Investment Manager and MSDW Services
New York, New York                            Company; Senior Vice President (since March,
                                              1997) and Assistant Secretary and Assistant
                                              General Counsel (since February, 1997) of the
                                              Distributor; Assistant Secretary of Dean Witter
                                              Reynolds (since August, 1996); Vice President,
                                              Secretary and General Counsel of the Morgan
                                              Stanley Dean Witter Funds (since February, 1997);
                                              Vice President, Secretary and General Counsel of
                                              Discover Brokerage Index Series; previously First
                                              Vice President (June, 1993-February, 1997), Vice
                                              President and Assistant Secretary and Assistant
                                              General Counsel of the Investment Manager and
                                              MSDW Services Company and Assistant Secretary
                                              of the Morgan Stanley Dean Witter Funds.

Kevin Jung (33) ...........................   Vice President of the Investment Manager (since
Vice President                                September, 1997); formerly Vice President of UBS
Two World Trade Center                        Asset Management (NY) Inc. (April, 1993-August,
New York, New York                            1997).

Guy G. Rutherford, Jr. (59) ...............   Senior Vice President of the Investment Manager
Vice President                                (since February, 1997); Vice President of various
Two World Trade Center                        Morgan Stanley Dean Witter Funds; formerly
New York, New York                            Executive Vice President and Chief Investment
                                              Officer of Nomura Asset Management (U.S.A.) Inc.
                                              (May, 1992-February, 1997).

Thomas F. Caloia (53) .....................   First Vice President and Assistant Treasurer of the
Treasurer                                     Investment Manager and MSDW Services
Two World Trade Center                        Company; Treasurer of the Morgan Stanley Dean
New York, New York                            Witter Funds and Discover Brokerage Index Series.
</TABLE>


- ----------
*     Denotes Trustees who are "interested persons" of the Fund, as defined in
      the Investment Company Act.

     In addition, Ronald E. Robison, Executive Vice President, Chief
Administrative Officer and Director of the Investment Manager and MSDW Services
Company, Robert S. Giambrone, Senior Vice President of the Investment Manager,
MSDW Services Company, the Distributor and the Transfer Agent and Director of
the Transfer Agent, and Joseph J. McAlinden, Executive Vice President and Chief
Investment Officer of the Investment Manager and Director of the Transfer
Agent, are Vice Presidents of the Fund.

     In addition, Frank Bruttomesso, Marilyn K. Cranney, Lou Anne D. McInnis,
Carsten Otto and Ruth Rossi, First Vice Presidents and Assistant General
Counsels of the Investment Manager and MSDW Services Company, and Todd Lebo,
Vice President and Assistant General Counsel of the Investment Manager and MSDW
Services Company, and Natasha Kassian, a staff attorney of the Investment
Manager, are Assistant Secretaries of the Fund.

     INDEPENDENT TRUSTEES AND THE COMMITTEES. Law and regulation establish both
general guidelines and specific duties for the Independent Trustees. The Morgan
Stanley Dean Witter Funds seek as Independent Trustees individuals of
distinction and experience in business and finance, government service or
academia; these are people whose advice and counsel are in demand by others and
for whom there is often competition. To accept a position on the Funds' Boards,
such individuals may reject other attractive assignments because the Funds make
substantial demands on their time. Indeed, by serving on the Funds' Boards,
certain Trustees who would otherwise be qualified and in demand to serve on
bank boards would be prohibited by law from doing so. All of the Independent
Trustees serve as

                                       16
<PAGE>

members of the Audit Committee. In addition, three of the Trustees, including
two Independent Trustees, serve as members of the Derivatives Committee and the
Insurance Committee.

     The Independent Trustees are charged with recommending to the full Board
approval of management, advisory and administration contracts, Rule 12b-1 plans
and distribution and underwriting agreements; continually reviewing Fund
performance; checking on the pricing of portfolio securities, brokerage
commissions, transfer agent costs and performance, and trading among Funds in
the same complex; and approving fidelity bond and related insurance coverage
and allocations, as well as other matters that arise from time to time. The
Independent Trustees are required to select and nominate individuals to fill
any Independent Trustee vacancy on the Board of any Fund that has a Rule 12b-1
plan of distribution. Most of the Morgan Stanley Dean Witter Funds have a Rule
12b-1 plan.

     The Audit Committee is charged with recommending to the full Board the
engagement or discharge of the Fund's independent accountants; directing
investigations into matters within the scope of the independent accountants'
duties, including the power to retain outside specialists; reviewing with the
independent accountants the audit plan and results of the auditing engagement;
approving professional services provided by the independent accountants and
other accounting firms prior to the performance of the services; reviewing the
independence of the independent accountants; considering the range of audit and
non-audit fees; reviewing the adequacy of the Fund's system of internal
controls; and preparing and submitting Committee meeting minutes to the full
Board.

     The Board of each Fund has a Derivatives Committee to approve parameters
for and monitor the activities of the Fund with respect to derivative
investments, if any, made by the Fund.

     Finally, the Board of each Fund has formed an Insurance Committee to
review and monitor the insurance coverage maintained by the Fund.

     ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL
MORGAN STANLEY DEAN WITTER FUNDS. The Independent Trustees and the Funds'
management believe that having the same Independent Trustees for each of the
Morgan Stanley Dean Witter Funds avoids the duplication of effort that would
arise from having different groups of individuals serving as Independent
Trustees for each of the Funds or even of sub-groups of Funds. They believe
that having the same individuals serve as Independent Trustees of all the Funds
tends to increase their knowledge and expertise regarding matters which affect
the Fund complex generally and enhances their ability to negotiate on behalf of
each Fund with the Fund's service providers. This arrangement also precludes
the possibility of separate groups of Independent Trustees arriving at
conflicting decisions regarding operations and management of the Funds and
avoids the cost and confusion that would likely ensue. Finally, having the same
Independent Trustees serve on all Fund Boards enhances the ability of each Fund
to obtain, at modest cost to each separate Fund, the services of Independent
Trustees, of the caliber, experience and business acumen of the individuals who
serve as Independent Trustees of the Morgan Stanley Dean Witter Funds.

     TRUSTEE AND OFFICER INDEMNIFICATION. The Fund's Declaration of Trust
provides that no Trustee, officer, employee or agent of the Fund is liable to
the Fund or to a shareholder, nor is any Trustee, officer, employee or agent
liable to any third persons in connection with the affairs of the Fund, except
as such liability may arise from his/her or its own bad faith, willful
misfeasance, gross negligence or reckless disregard of his/her or its duties.
It also provides that all third persons shall look solely to the Fund property
for satisfaction of claims arising in connection with the affairs of the Fund.
With the exceptions stated, the Declaration of Trust provides that a Trustee,
officer, employee or agent is entitled to be indemnified against all liability
in connection with the affairs of the Fund.


C. COMPENSATION

     The Fund pays each Independent Trustee an annual fee of $800 plus a per
meeting fee of $50 for meetings of the Board of Trustees, the Independent
Trustees or Committees of the Board of Trustees attended by the Trustee (the
Fund pays the Chairman of the Audit Committee an additional annual fee of $750,
and the Chairmen of the Derivatives and Insurance Committees additional annual
fees of $500). If a Board meeting and a meeting of the Independent Trustees or
a Committee meeting, or a meeting of

                                       17
<PAGE>

the Independent Trustees and/or more than one Committee meeting, take place on
a single day, the Directors are paid a single meeting fee by the Fund. The Fund
also reimburses such Trustees for travel and other out-of-pocket expenses
incurred by them in connection with attending such meetings. Trustees and
officers of the Fund who are or have been employed by the Investment Manager or
an affiliated company receive no compensation or expense reimbursement from the
Fund for their services as Trustee.

     At such time as the Fund has been in operation, and has paid fees to the
Independent Trustees, for a full fiscal year, and assuming that during such
fiscal year the Fund holds the same number of meetings of the Board, the
Independent Trustees and the Committees as were held by the other Morgan
Stanley Dean Witter Funds during the calendar year ended December 31, 1998, it
is estimated that the compensation paid to each Independent Trustee during such
fiscal year will be the amount shown in the following table:


                         FUND COMPENSATION (ESTIMATED)

<TABLE>
<CAPTION>
                                                                     AGGREGATE
                                                                    COMPENSATION
NAME OF INDEPENDENT TRUSTEE                                        FROM THE FUND
- ---------------------------                                        --------------
<S>                                                                      <C>
Michael Bozic ....................................................       $1,650
Edwin J. Garn ....................................................        1,650
Wayne E. Hedien ..................................................        1,650
Dr. Manuel H. Johnson ............................................        2,400
Michael E. Nugent ................................................        2,150
John L. Schroeder ................................................        2,150
</TABLE>

     The following table illustrates the compensation paid to the Fund's
Independent Trustees for the calendar year ended December 31, 1998 for services
to the 90 Morgan Stanley Dean Witter Funds that were in operation at December
31, 1998. No compensation was paid to the Fund's Independent Trustees by
Discover Brokerage Index Series for the calendar year ended December 31, 1998.


            CASH COMPENSATION FROM MORGAN STANLEY DEAN WITTER FUNDS

<TABLE>
<CAPTION>
                                                                     TOTAL CASH
                                                                    COMPENSATION
                                                                   FOR SERVICES TO
                                                                      90 MORGAN
            NAME OF                                                  STANLEY DEAN
      INDEPENDENT TRUSTEE                                            WITTER FUNDS
      -------------------                                            ------------
<S>                                                                    <C>
Michael Bozic ..................................................       $120,150
Edwin J. Garn ..................................................        132,450
Wayne E. Hedien ................................................        132,350
Dr. Manuel H. Johnson ..........................................        155,681
Michael E. Nugent ..............................................        159,731
John L. Schroeder ..............................................        160,731
</TABLE>

     As of the date of this Statement of Additional Information, 55 of the
Morgan Stanley Dean Witter Funds, not including the Fund, have adopted a
retirement program under which an Independent Trustee who retires after serving
for at least five years (or such lesser period as may be determined by the
Board) as an Independent Director or Trustee of any Morgan Stanley Dean Witter
Fund that has adopted the retirement program (each such Fund referred to as an
"Adopting Fund" and each such Trustee referred to as an "Eligible Director") is
entitled to retirement payments upon reaching the eligible retirement age
(normally, after attaining age 72). Annual payments are based upon length of
service.

     Currently, upon retirement, each Eligible Trustee is entitled to receive
from the Adopting Fund, commencing as of his or her retirement date and
continuing for the remainder of his or her life, an annual retirement benefit
(the "Regular Benefit") equal to 30.22% of his or her Eligible Compensation
plus


                                       18
<PAGE>

0.5036667% of such Eligible Compensation for each full month of service as an
Independent Director or Trustee of any Adopting Fund in excess of five years up
to a maximum of 60.44% after ten years of service. The foregoing percentages may
be changed by the Board.(1) "Eligible Compensation" is one-fifth of the total
compensation earned by such Eligible Trustee for service to the Adopting Fund in
the five year period prior to the date of the Eligible Trustee's retirement.
Benefits under the retirement program are accrued as expenses by the Adopting
Funds. Such benefits are not secured or funded by the Adopting Funds.

     The following table illustrates the retirement benefits accrued to the
Fund's Independent Trustees by the 55 Morgan Stanley Dean Witter Funds (not
including the Fund) for the calendar year ended December 31, 1998, and the
estimated retirement benefits for the Fund's Independent Trustees, to commence
upon their retirement, from the 55 Morgan Stanley Dean Witter Funds (not
including the Fund) as of the calendar year ended December 31, 1998.

                  RETIREMENT BENEFITS FROM ALL MORGAN STANLEY
                               DEAN WITTER FUNDS

<TABLE>
<CAPTION>
                                    FOR ALL ADOPTING FUNDS
                                  --------------------------
                                  ESTIMATED
                                  CREDITED
                                   YEARS OF       ESTIMATED         RETIREMENT        ESTIMATED ANNUAL
                                  SERVICE AT    PERCENTAGE OF    BENEFITS ACCRUED       BENEFITS UPON
                                  RETIREMENT       ELIGIBLE     AS EXPENSES BY ALL   RETIREMENT FROM ALL
NAME OF INDEPENDENT TRUSTEE      (MAXIMUM 10)    COMPENSATION     ADOPTING FUNDS       ADOPTING FUNDS(2)
- ------------------------------- -------------- --------------- -------------------- --------------------
<S>                                  <C>            <C>              <C>                  <C>
Michael Bozic .................       10            60.44%            $22,377              $52,250
Edwin J. Garn .................       10            60.44              35,225               52,250
Wayne E. Hedien ...............        9            51.37              41,979               44,413
Dr. Manuel H. Johnson .........       10            60.44              14,047               52,250
Michael E. Nugent .............       10            60.44              25,336               52,250
John L. Schroeder .............        8            50.37              45,117               44,343
</TABLE>

- ----------

(1) An Eligible Trustee may elect alternative payments of his or her retirement
    benefits based upon the combined life expectancy of the Eligible Trustee and
    his or her spouse on the date of such Eligible Trustee's retirement. In
    addition, the Eligible Trustee may elect that the surviving spouse's
    periodic payment of benefits will be equal to a lower percentage of the
    periodic amount when both spouses were alive. The amount estimated to be
    payable under this method, through the remainder of the later of the lives
    of the Eligible Trustee and spouse, will be the actuarial equivalent of the
    Regular Benefit.


(2) Based on current levels of compensation. Amount of annual benefits also
    varies depending on the Trustee's elections described in Footnote (1) above.


IV. CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES
- --------------------------------------------------------------------------------
     As of the date of this Statement of Additional Information, the aggregate
number of shares of beneficial interest of the Fund owned by the Fund's
officers and Trustees as a group was less than 1% of the Fund's shares of
beneficial interest outstanding.


V. INVESTMENT MANAGEMENT AND OTHER SERVICES
- --------------------------------------------------------------------------------

A. INVESTMENT MANAGER

     The Investment Manager to the Fund is Morgan Stanley Dean Witter Advisors
Inc., a Delaware corporation, whose address is Two World Trade Center, New
York, New York 10048. The Investment Manager is a wholly-owned subsidiary of
MSDW, a Delaware corporation. MSDW is a preeminent global financial services
firm that maintains leading market positions in each of its three primary
businesses: securities, asset management and credit services.

     Pursuant to an Investment Management Agreement (the "Management
Agreement") with the Investment Manager, the Fund has retained the Investment
Manager to provide administrative services

                                       19
<PAGE>


and manage the investment of the Fund's assets, including the placing of orders
for the purchase and sale of portfolio securities. The Fund pays the Investment
Manager monthly compensation calculated daily at the annual rate of 0.40% of
the Fund's average daily net assets. The Investment Manager has agreed to
assume all operating expenses (except for brokerage and 12b-1 fees) and to
waive the compensation provided for in its Management Agreement until such time
as the Fund has $50 million of net assets or six months from the date of
commencement of the Fund's operations, whichever occurs first. Thereafter, the
Investment Manager has agreed under the Management Agreement to assume the
Fund's operating expenses (except for brokerage and 12b-1 fees) to the extent
the Fund's total operating expenses (except for brokerage and 12b-1 fees)
exceed on an annualized basis, for the fiscal year, 0.50% of the average daily
net assets of the Fund.


     The Investment Manager has retained its wholly-owned subsidiary, MSDW
Services Company, to perform administrative services for the Fund.


B. PRINCIPAL UNDERWRITER

     The Fund's principal underwriter is the Distributor (which has the same
address as the Investment Manager). In this capacity, the Fund's shares are
distributed by the Distributor. The Distributor has entered into a selected
dealer agreement with Dean Witter Reynolds, which through its own sales
organization sells shares of the Fund. In addition, the Distributor may enter
into similar agreements with other selected broker-dealers. The Distributor, a
Delaware corporation, is a wholly-owned subsidiary of MSDW.

     The Distributor bears all expenses it may incur in providing services
under the Distribution Agreement. These expenses include the payment of
commissions for sales of the Fund's shares and incentive compensation to
Financial Advisors. The Distributor also pays certain expenses in connection
with the distribution of the Fund's shares, including the costs of preparing,
printing and distributing advertising or promotional materials, and the costs
of printing and distributing prospectuses and supplements thereto used in
connection with the offering and sale of the Fund's shares. The Fund bears the
costs of initial typesetting, printing and distribution of prospectuses and
supplements thereto to shareholders. The Fund also bears the costs of
registering the Fund and its shares under federal and state securities laws and
pays filing fees in accordance with state securities laws.

     The Fund and the Distributor have agreed to indemnify each other against
certain liabilities, including liabilities under the Securities Act. Under the
Distribution Agreement, the Distributor uses its best efforts in rendering
services to the Fund, but in the absence of willful misfeasance, bad faith,
gross negligence or reckless disregard of its obligations, the Distributor is
not liable to the Fund or any of its shareholders for any error of judgment or
mistake of law or for any act or omission or for any losses sustained by the
Fund or its shareholders.


C. SERVICES PROVIDED BY THE INVESTMENT MANAGER AND FUND EXPENSES PAID BY THIRD
 PARTIES

     The Investment Manager manages the investment of the Fund's assets,
including the placing of orders for the purchase and sale of portfolio
securities. The Investment Manager obtains and evaluates the information and
advice relating to the economy, securities markets, and specific securities as
it considers necessary or useful to continuously manage the assets of the Fund
in a manner consistent with its investment objective.

     Under the terms of the Management Agreement, in addition to managing the
Fund's investments, the Investment Manager maintains certain of the Fund's
books and records and furnishes, at its own expense, the office space,
facilities, equipment, clerical help, bookkeeping and certain legal services as
the Fund may reasonably require in the conduct of its business, including the
preparation of prospectuses, proxy statements and reports required to be filed
with federal and state securities commissions (except insofar as the
participation or assistance of independent accountants and attorneys is, in the
opinion of the Investment Manager, necessary or desirable). In addition, the
Investment Manager pays the salaries of all personnel, including officers of
the Fund, who are employees of the Investment Manager. The Investment Manager
also bears the cost of telephone service, heat, light, power and other
utilities provided to the Fund.


                                       20
<PAGE>

     Expenses not expressly assumed by the Investment Manager under the
Management Agreement or by the Distributor, will be paid by the Fund. These
expenses will be allocated among the four Classes of shares pro rata based on
the net assets of the Fund attributable to each Class, except as described
below. Such expenses include, but are not limited to: expenses of the Plan of
Distribution pursuant to Rule 12b-1; charges and expenses of any registrar,
custodian, stock transfer and dividend disbursing agent; brokerage commissions;
taxes; engraving and printing share certificates; registration costs of the
Fund and its shares under federal and state securities laws; the cost and
expense of printing, including typesetting, and distributing prospectuses of
the Fund and supplements thereto to the Fund's shareholders; all expenses of
shareholders' and Trustees' meetings and of preparing, printing and mailing of
proxy statements and reports to shareholders; fees and travel expenses of
Trustees or members of any advisory board or committee who are not employees of
the Investment Manager or any corporate affiliate of the Investment Manager;
all expenses incident to any dividend, withdrawal or redemption options;
charges and expenses of any outside service used for pricing of the Fund's
shares; fees and expenses of legal counsel, including counsel to the Trustees
who are not interested persons of the Fund or of the Investment Manager (not
including compensation or expenses of attorneys who are employees of the
Investment Manager); fees and expenses of the Fund's independent accountants;
membership dues of industry associations; interest on Fund borrowings; postage;
insurance premiums on property or personnel (including officers and Trustees)
of the Fund which inure to its benefit; extraordinary expenses (including, but
not limited to, legal claims and liabilities and litigation costs and any
indemnification relating thereto); and all other costs of the Fund's operation.
The 12b-1 fees relating to a particular Class will be allocated directly to
that Class. In addition, other expenses associated with a particular Class
(except advisory or custodial fees) may be allocated directly to that Class,
provided that such expenses are reasonably identified as specifically
attributable to that Class and the direct allocation to that Class is approved
by the Trustees.

     The Management Agreement provides that in the absence of willful
misfeasance, bad faith, gross negligence or reckless disregard of its
obligations thereunder, the Investment Manager is not liable to the Fund or any
of its investors for any act or omission by the Investment Manager or for any
losses sustained by the Fund or its investors.

     The Management Agreement will remain in effect from year to year, provided
continuance of the Management Agreement is approved at least annually by the
vote of the holders of a majority, as defined in the Investment Company Act, of
the outstanding shares of the Fund, or by the Trustees; provided that in either
event such continuance is approved annually by the vote of a majority of the
Trustees.


D. DEALER REALLOWANCES

     Upon notice to selected broker-dealers, the Distributor may reallow up to
the full applicable front-end sales charge during periods specified in such
notice. During periods when 90% or more of the sales charge is reallowed, such
selected broker-dealers may be deemed to be underwriters as that term is
defined in the Securities Act.


E. RULE 12B-1 PLAN

     The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under
the Investment Company Act (the "Plan") pursuant to which each Class, other
than Class D, pays the Distributor compensation accrued daily and payable
monthly at the following annual rates: 0.25% of the average daily net assets of
Class A and 1.0% of the average daily net assets of Class B and Class C shares.


     The Distributor also receives the proceeds of front-end sales charges
("FSCs") and of contingent deferred sales charges ("CDSCs") imposed on certain
redemptions of shares, which are separate and apart from payments made pursuant
to the Plan.

     The Distributor has informed the Fund that the entire fee payable by Class
A and a portion of the fees payable by each of Class B and Class C each year
pursuant to the Plan equal to 0.25% of such Class' average daily net assets are
currently each characterized as a "service fee" under the Rules of the National
Association of Securities Dealers, Inc. (of which the Distributor is a member).
The "service fee"


                                       21
<PAGE>

is a payment made for personal service and/or the maintenance of shareholder
accounts. The remaining portion of the Plan fees payable by a Class, if any, is
characterized as an "asset-based sales charge" as such is defined by the Rules
of the Association.

     Under the Plan and as required by Rule 12b-1, the Trustees receive and
review promptly after the end of each calendar quarter a written report
provided by the Distributor of the amounts expended under the Plan and the
purpose for which such expenditures were made.

     The Plan was adopted in order to permit the implementation of the Fund's
method of distribution. Under this distribution method the Fund offers four
Classes, each with a different distribution arrangement.

     With respect to Class A shares, Dean Witter Reynolds compensates its
Financial Advisors by paying them, from proceeds of the FSC, commissions for
the sale of Class A shares, currently a gross sales credit of up to 5.0% of the
amount sold (except as provided in the following sentence) and an annual
residual commission, currently a residual of up to 0.25% of the current value
of the respective accounts for which they are the Financial Advisors or dealers
of record in all cases. On orders of $1 million or more (for which no sales
charge was paid) or net asset value purchases by employer-sponsored employee
benefit plans, whether or not qualified under the Internal Revenue Code, for
which the Transfer Agent serves as Trustee or Dean Witter Reynolds Retirement
Plan Services serves as recordkeeper pursuant to a written Recordkeeping
Services Agreement ("MSDW Eligible Plans"), the Investment Manager compensates
Financial Advisors by paying them, from its own funds, a gross sales credit of
1.0% of the amount sold.

     With respect to Class B shares, Dean Witter Reynolds compensates its
Financial Advisors by paying them, from its own funds, commissions for the sale
of Class B shares, currently a gross sales credit of up to 5.0% of the amount
sold (except as provided in the following sentence) and an annual residual
commission, currently a residual of up to 0.25% of the current value (not
including reinvested dividends or distributions) of the amount sold in all
cases. In the case of Class B shares purchased by MSDW Eligible Plans, Dean
Witter Reynolds compensates its Financial Advisors by paying them, from its own
funds, a gross sales credit of 3.0% of the amount sold.

     With respect to Class C shares, Dean Witter Reynolds compensates its
Financial Advisors by paying them, from its own funds, commissions for the sale
of Class C shares, currently a gross sales credit of up to 1.0% of the amount
sold and an annual residual commission, currently up to 1.0% of the current
value of the respective accounts for which they are the Financial Advisors of
record.

     With respect to Class D shares other than shares held by participants in
the Investment Manager's mutual fund asset allocation program, the Investment
Manager compensates Dean Witter Reynolds's Financial Advisors by paying them,
from its own funds, commissions for the sale of Class D shares, currently a
gross sales credit of up to 1.0% of the amount sold. There is a chargeback of
100% of the amount paid if the Class D shares are redeemed in the first year
and a chargeback of 50% of the amount paid if the Class D shares are redeemed
in the second year after purchase. The Investment Manager also compensates Dean
Witter Reynolds's Financial Advisors by paying them, from its own funds, an
annual residual commission, currently up to 0.10% of the current value of the
respective accounts for which they are the Financial Advisors of record (not
including accounts of participants in the Investment Manager's mutual fund
asset allocation program).

     The gross sales credit is a charge which reflects commissions paid by Dean
Witter Reynolds to its Financial Advisors and Dean Witter Reynolds's
Fund-associated distribution-related expenses, including sales compensation,
and overhead and other branch office distribution-related expenses including
(a) the expenses of operating Dean Witter Reynolds's branch offices in
connection with the sale of Fund shares, including lease costs, the salaries
and employee benefits of operations and sales support personnel, utility costs,
communications costs and the costs of stationery and supplies; (b) the costs of
client sales seminars; (c) travel expenses of mutual fund sales coordinators to
promote the sale of Fund shares; and (d) other expenses relating to branch
promotion of Fund sales.

     The distribution fee that the Distributor receives from the Fund under the
Plan, in effect, offsets distribution expenses incurred under the Plan on
behalf of the Fund and, in the case of Class B shares,


                                       22
<PAGE>

opportunity costs, such as the gross sales credit and an assumed interest
charge thereon ("carrying charge"). In the Distributor's reporting of the
distribution expenses to the Fund, in the case of Class B shares, such assumed
interest (computed at the "broker's call rate") has been calculated on the
gross credit as it is reduced by amounts received by the Distributor under the
Plan and any contingent deferred sales charges received by the Distributor upon
redemption of shares of the Fund. No other interest charge is included as a
distribution expense in the Distributor's calculation of its distribution costs
for this purpose. The broker's call rate is the interest rate charged to
securities brokers on loans secured by exchange-listed securities.

     The Fund is authorized to reimburse expenses incurred or to be incurred in
promoting the distribution of the Fund's Class A and Class C shares and in
servicing shareholder accounts. Reimbursement will be made through payments at
the end of each month. The amount of each monthly payment may in no event
exceed an amount equal to a payment at the annual rate of 0.25%, in the case of
Class A, and 1.0%, in the case of Class C, of the average net assets of the
respective Class during the month. No interest or other financing charges, if
any, incurred on any distribution expenses on behalf of Class A and Class C
will be reimbursable under the Plan. With respect to Class A, in the case of
all expenses other than expenses representing the service fee, and, with
respect to Class C, in the case of all expenses other than expenses
representing a gross sales credit or a residual to Financial Advisors and other
authorized financial representatives, such amounts shall be determined at the
beginning of each calendar quarter by the Trustees, including, a majority of
the Independent Trustees. Expenses representing the service fee (for Class A)
or a gross sales credit or a residual to Financial Advisors and other
authorized financial representatives (for Class C) may be reimbursed without
prior determination. In the event that the Distributor proposes that monies
shall be reimbursed for other than such expenses, then in making quarterly
determinations of the amounts that may be reimbursed by the Fund, the
Distributor will provide and the Trustees will review a quarterly budget of
projected distribution expenses to be incurred on behalf of the Fund, together
with a report explaining the purposes and anticipated benefits of incurring
such expenses. The Trustees will determine which particular expenses, and the
portions thereof, that may be borne by the Fund, and in making such a
determination shall consider the scope of the Distributor's commitment to
promoting the distribution of the Fund's Class A and Class C shares.

     In the case of Class B shares, at any given time, the expenses of
distributing shares of the Fund may be more or less than the total of (i) the
payments made by the Fund pursuant to the Plan; and (ii) the proceeds of CDSCs
paid by investors upon redemption of shares. For example, if $1 million in
expenses in distributing Class B shares of the Fund had been incurred and
$750,000 had been received as described in (i) and (ii) above, the excess
expense would amount to $250,000. Because there is no requirement under the
Plan that the Distributor be reimbursed for all distribution expenses with
respect to Class B shares or any requirement that the Plan be continued from
year to year, this excess amount does not constitute a liability of the Fund.
Although there is no legal obligation for the Fund to pay expenses incurred in
excess of payments made to the Distributor under the Plan and the proceeds of
CDSCs paid by investors upon redemption of shares, if for any reason the Plan
is terminated, the Trustees will consider at that time the manner in which to
treat such expenses. Any cumulative expenses incurred, but not yet recovered
through distribution fees or CDSCs, may or may not be recovered through future
distribution fees or CDSCs.

     In the case of Class A and Class C shares, expenses incurred pursuant to
the Plan in any calendar year in excess of 0.25% or 1.0% of the average daily
net assets of Class A or Class C, respectively, will not be reimbursed by the
Fund through payments in any subsequent year, except that expenses representing
a gross sales commission credited to Morgan Stanley Dean Witter Financial
Advisors and other authorized financial representatives at the time of sale may
be reimbursed in the subsequent calendar year. No interest or other financing
charges will be incurred on any Class A or Class C distribution expenses
incurred by the Distributor under the Plan or on any unreimbursed expenses due
to the Distributor pursuant to the Plan.

     No interested person of the Fund nor any Independent Trustee has any
direct financial interest in the operation of the Plan except to the extent
that the Distributor, the Investment Manager, Dean Witter


                                       23
<PAGE>

Reynolds, MSDW Services Company or certain of their employees may be deemed to
have such an interest as a result of benefits derived from the successful
operation of the Plan or as a result of receiving a portion of the amounts
expended thereunder by the Fund.

     On an annual basis the Trustees, including a majority of the Independent
Trustees, consider whether the Plan should be continued. Prior to approving the
last continuation of the Plan, the Trustees requested and received from the
Distributor and reviewed all the information which they deemed necessary to
arrive at an informed determination. In making their determination to continue
the Plan, the Trustees considered: (1) the Fund's experience under the Plan and
whether such experience indicates that the Plan is operating as anticipated;
(2) the benefits the Fund had obtained, was obtaining and would be likely to
obtain under the Plan, including that: (a) the Plan is essential in order to
give Fund investors a choice of alternatives for payment of distribution and
service charges and to enable the Fund to continue to grow and avoid a pattern
of net redemptions which, in turn, are essential for effective investment
management; and (b) without the compensation to individual brokers and the
reimbursement of distribution and account maintenance expenses of Dean Witter
Reynolds's branch offices made possible by the 12b-1 fees, Dean Witter Reynolds
could not establish and maintain an effective system for distribution,
servicing of Fund shareholders and maintenance of shareholder accounts; and (3)
what services had been provided and were continuing to be provided under the
Plan to the Fund and its shareholders. Based upon their review, the Trustees,
including each of the Independent Trustees, determined that continuation of the
Plan would be in the best interest of the Fund and would have a reasonable
likelihood of continuing to benefit the Fund and its shareholders. In the
Trustees' quarterly review of the Plan, they will consider its continued
appropriateness and the level of compensation provided therein.

     The Plan may not be amended to increase materially the amount to be spent
for the services described therein without approval by the shareholders of the
affected Class or Classes of the Fund, and all material amendments to the Plan
must also be approved by the Trustees in the manner described above. The Plan
may be terminated at any time, without payment of any penalty, by vote of a
majority of the Independent Trustees or by a vote of a majority of the
outstanding voting securities of the Fund (as defined in the Investment Company
Act) on not more than thirty days' written notice to any other party to the
Plan. So long as the Plan is in effect, the election and nomination of
Independent Trustees shall be committed to the discretion of the Independent
Trustees.


F. OTHER SERVICE PROVIDERS


  (1) TRANSFER AGENT/DIVIDEND-PAYING AGENT

     Morgan Stanley Dean Witter Trust FSB is the Transfer Agent for the Fund's
shares and the Dividend Disbursing Agent for payment of dividends and
distributions on Fund shares and Agent for shareholders under various
investment plans. The principal business address of the Transfer Agent is
Harborside Financial Center, Plaza Two, Jersey City, New Jersey 07311.


  (2) CUSTODIAN AND INDEPENDENT ACCOUNTANTS

     The Bank of New York, 90 Washington Street, New York, New York 10286, is
the Custodian of the Fund's assets. Any of the Fund's cash balances with the
Custodian in excess of $100,000 are unprotected by federal deposit insurance.
These balances may, at times, be substantial.

     PricewaterhouseCoopers LLP, 1177 Avenue of the Americas, New York, New
York 10036, serves as the independent accountants of the Fund. The independent
accountants are responsible for auditing the annual financial statements of the
Fund.


  (3) AFFILIATED PERSONS

     The Transfer Agent is an affiliate of the Investment Manager, and of the
Distributor. As Transfer Agent and Dividend Disbursing Agent, the Transfer
Agent's responsibilities include maintaining shareholder accounts, disbursing
cash dividends and reinvesting dividends, processing account registration


                                       24
<PAGE>

changes, handling purchase and redemption transactions, mailing prospectuses
and reports, mailing and tabulating proxies, processing share certificate
transactions, and maintaining shareholder records and lists. For these
services, the Transfer Agent receives a per shareholder account fee from the
Fund and is reimbursed for its out-of-pocket expenses in connection with such
services.


VI. BROKERAGE ALLOCATION AND OTHER PRACTICES
- --------------------------------------------------------------------------------
A. BROKERAGE TRANSACTIONS


     Subject to the general supervision of the Trustees, the Investment Manager
is responsible for decisions to buy and sell securities for the Fund, the
selection of brokers and dealers to effect the transactions, and the
negotiation of brokerage commissions, if any. Purchases and sales of securities
on a stock exchange are effected through brokers who charge a commission for
their services. In the over-the-counter market, securities are generally traded
on a "net" basis with dealers acting as principal for their own accounts
without a stated commission, although the price of the security usually
includes a profit to the dealer. [The Fund also expects that securities will be
purchased at times in underwritten offerings where the price includes a fixed
amount of compensation, generally referred to as the underwriter's concession
or discount.] Options and futures transactions will usually be effected through
a broker and a commission will be charged. On occasion, the Fund may also
purchase certain money market instruments directly from an issuer, in which
case no commissions or discounts are paid.


B. COMMISSIONS

     Pursuant to an order of the SEC, the Fund may effect principal
transactions in certain money market instruments with Dean Witter Reynolds. The
Fund will limit its transactions with Dean Witter Reynolds to U.S. Government
and government agency securities, bank money instruments (i.e., certificates of
deposit and bankers' acceptances) and commercial paper. The transactions will
be effected with Dean Witter Reynolds only when the price available from Dean
Witter Reynolds is better than that available from other dealers.

     Brokerage transactions in securities listed on exchanges or admitted to
unlisted trading privileges may be effected through Dean Witter Reynolds,
Morgan Stanley & Co. and other affiliated brokers and dealers. In order for an
affiliated broker or dealer to effect any portfolio transactions on an exchange
for the Fund, the commissions, fees or other remuneration received by the
affiliated broker or dealer must be reasonable and fair compared to the
commissions, fees or other remuneration paid to other brokers in connection
with comparable transactions involving similar securities being purchased or
sold on an exchange during a comparable period of time. This standard would
allow the affiliated broker or dealer to receive no more than the remuneration
which would be expected to be received by an unaffiliated broker in a
commensurate arm's-length transaction. Furthermore, the Trustees, including the
Independent Trustees, have adopted procedures which are reasonably designed to
provide that any commissions, fees or other remuneration paid to an affiliated
broker or dealer are consistent with the foregoing standard. The Fund does not
reduce the management fee it pays to the Investment Manager by any amount of
the brokerage commissions it may pay to an affiliated broker or dealer.


C. BROKERAGE SELECTION

     The policy of the Fund regarding purchases and sales of securities for its
portfolio is that primary consideration will be given to obtaining the most
favorable prices and efficient executions of transactions. Consistent with this
policy, when securities transactions are effected on a stock exchange, the
Fund's policy is to pay commissions which are considered fair and reasonable
without necessarily determining that the lowest possible commissions are paid
in all circumstances. The Fund believes that a requirement always to seek the
lowest possible commission cost could impede effective portfolio management and
preclude the Fund and the Investment Manager from obtaining a high quality of
brokerage and research services. In seeking to determine the reasonableness of
brokerage commissions paid in any transaction, the Investment Manager relies
upon its experience and knowledge


                                       25
<PAGE>

regarding commissions generally charged by various brokers and on its judgment
in evaluating the brokerage and research services received from the broker
effecting the transaction. These determinations are necessarily subjective and
imprecise, as in most cases an exact dollar value for those services is not
ascertainable.

     In seeking to implement the Fund's policies, the Investment Manager
effects transactions with those brokers and dealers who the Investment Manager
believes provide the most favorable prices and are capable of providing
efficient executions. If the Investment Manager believes the prices and
executions are obtainable from more than one broker or dealer, it may give
consideration to placing portfolio transactions with those brokers and dealers
who also furnish research and other services to the Fund or the Investment
Manager. The services may include, but are not limited to, any one or more of
the following: information as to the availability of securities for purchase or
sale; statistical or factual information or opinions pertaining to investment;
wire services; and appraisals or evaluations of portfolio securities. The
information and services received by the Investment Manager from brokers and
dealers may be of benefit to the Investment Manager in the management of
accounts of some of its other clients and may not in all cases benefit the Fund
directly.

     The Investment Manager currently serves as investment manager to a number
of clients, including other investment companies, and may in the future act as
investment manager or advisor to others. It is the practice of the Investment
Manager to cause purchase and sale transactions to be allocated among the Fund
and others whose assets it manages in such manner as it deems equitable. In
making such allocations among the Fund and other client accounts, various
factors may be considered, including the respective investment objectives, the
relative size of portfolio holdings of the same or comparable securities, the
availability of cash for investment, the size of investment commitments
generally held and the opinions of the persons responsible for managing the
portfolios of the Fund and other client accounts. In the case of certain
initial and secondary public offerings, the Investment Manager utilizes a pro
rata allocation process based on the size of the Morgan Stanley Dean Witter
Funds involved and the number of shares available from the public offering.


VII. CAPITAL STOCK AND OTHER SECURITIES
- --------------------------------------------------------------------------------
     The shareholders of the Fund are entitled to a full vote for each full
share of beneficial interest held. The Fund is authorized to issue an unlimited
number of shares of beneficial interest. All shares of beneficial interest of
the Fund are of $0.01 par value and are equal as to earnings, assets and voting
privileges except that each Class will have exclusive voting privileges with
respect to matters relating to distribution expenses borne solely by such Class
or any other matter in which the interests of one Class differ from the
interests of any other Class. In addition, Class B shareholders will have the
right to vote on any proposed material increase in Class A's expenses, if such
proposal is submitted separately to Class A shareholders. Also, Class A, Class
B and Class C bear expenses related to the distribution of their respective
shares.

     The Fund's Declaration of Trust permits the Trustees to authorize the
creation of additional series of shares (the proceeds of which would be
invested in separate, independently managed portfolios) and additional Classes
of shares within any series. The Trustees have not presently authorized any
such additional series or Classes of shares other than as set forth in the
Prospectus.

     The Fund is not required to hold annual meetings of shareholders and in
ordinary circumstances the Fund does not intend to hold such meetings. The
Trustees may call special meetings of shareholders for action by shareholder
vote as may be required by the Investment Company Act or the Declaration of
Trust. Under certain circumstances, the Trustees may be removed by action of
the Trustees. In addition, under certain circumstances the shareholders may
call a meeting to remove Trustees and the Fund is required to provide
assistance in communicating with shareholders about such a meeting. The voting
rights of shareholders are not cumulative, so that holders of more than 50
percent of the shares voting can, if they choose, elect all Trustees being
selected, while the holders of the remaining shares would be unable to elect
any Trustees.


                                       26
<PAGE>

     Under Massachusetts law, shareholders of a business trust may, under
certain limited circumstances, be held personally liable as partners for the
obligations of the Fund. However, the Declaration of Trust contains an express
disclaimer of shareholder liability for acts or obligations of the Fund,
requires that notice of such Fund obligations include such disclaimer, and
provides for indemnification out of the Fund's property for any shareholder
held personally liable for the obligations of the Fund. Thus, the risk of a
shareholder incurring financial loss on account of shareholder liability is
limited to circumstances in which the Fund itself would be unable to meet its
obligations. Given the above limitations on shareholder personal liability, and
the nature of the Fund's assets and operations, the possibility of the Fund
being unable to meet its obligations is remote and thus, in the opinion of
Massachusetts counsel to the Fund, the risk to Fund shareholders of personal
liability is remote.

     All of the Trustees have been elected by Morgan Stanley Dean Witter
Advisors on July 21, 1999. The Trustees themselves have the power to alter the
number and the terms of office of the Trustees (as provided for in the
Declaration of Trust), and they may at any time lengthen or shorten their own
terms or make their terms of unlimited duration and appoint their own
successors, provided that always at least a majority of the Trustees has been
elected by the shareholders of the Fund.


VIII. PURCHASE, REDEMPTION AND PRICING OF SHARES
- --------------------------------------------------------------------------------
A. PURCHASE/REDEMPTION OF SHARES


     Information concerning how Fund shares are offered to the public (and how
they are redeemed and exchanged) is provided in the Fund's Prospectus.

     TRANSFER AGENT AS AGENT. With respect to the redemption or repurchase of
Fund shares, the application of proceeds to the purchase of new shares in the
Fund or any other Morgan Stanley Dean Witter Funds and the general
administration of the exchange privilege, the Transfer Agent acts as agent for
the Distributor and for the shareholder's authorized broker-dealer, if any, in
the performance of such functions. With respect to exchanges, redemptions or
repurchases, the Transfer Agent shall be liable for its own negligence and not
for the default or negligence of its correspondents or for losses in transit.
The Fund shall not be liable for any default or negligence of the Transfer
Agent, the Distributor or any authorized broker-dealer.

     The Distributor and any authorized broker-dealer have appointed the
Transfer Agent to act as their agent in connection with the application of
proceeds of any redemption of Fund shares to the purchase of shares of any
other Morgan Stanley Dean Witter Fund and the general administration of the
exchange privilege. No commission or discounts will be paid to the Distributor
or any authorized broker-dealer for any transactions pursuant to the exchange
privilege.

     TRANSFERS OF SHARES. In the event a shareholder requests a transfer of
Fund shares to a new registration, the shares will be transferred without sales
charge at the time of transfer. With regard to the status of shares which are
either subject to a CDSC or free of such charge (and with regard to the length
of time shares subject to the charge have been held), any transfer involving
less than all of the shares in an account will be made on a pro rata basis
(that is, by transferring shares in the same proportion that the transferred
shares bear to the total shares in the account immediately prior to the
transfer). The transferred shares will continue to be subject to any applicable
CDSC as if they had not been so transferred.


B. OFFERING PRICE

     The Fund's Class B, Class C and Class D shares are offered at net asset
value per share and the Class A shares are offered at net asset value per share
plus any applicable FSC which is distributed among the Fund's Distributor, Dean
Witter Reynolds and other authorized dealers as described in Section "V.
Investment Management and Other Services--E. Rule 12b-1 Plan."

     The price of Fund shares, called "net asset value," is based on the value
of the Fund's portfolio securities. Net asset value per share of each Class is
calculated by dividing the value of the portion of the Fund's securities and
other assets attributable to that Class, less the liabilities attributable to
that


                                       27
<PAGE>

Class, by the number of shares of that Class outstanding. The assets of each
Class of shares are invested in a single portfolio. The net asset value of each
Class, however, will differ because the Classes have different ongoing fees.

     In the calculation of the Fund's net asset value: (1) an equity portfolio
security listed or traded on the New York or American Stock Exchange or other
stock exchange is valued at its latest sale price on that exchange, prior to
the time when assets are valued; if there were no sales that day, the security
is valued at the latest bid price (in cases where a security is traded on more
than one exchange, the security is valued on the exchange designated as the
primary market pursuant to procedures adopted by the Trustees); and (2) all
other portfolio securities for which over-the-counter market quotations are
readily available are valued at the latest bid price. When market quotations
are not readily available, including circumstances under which it is determined
by the Investment Manager that sale or bid prices are not reflective of a
security's market value, portfolio securities are valued at their fair value as
determined in good faith under procedures established by and under the general
supervision of the Fund's Trustees. For valuation purposes, quotations of
foreign portfolio securities, other assets and liabilities and forward
contracts stated in foreign currency are translated into U.S. dollar
equivalents at the prevailing market rates prior to the close of the New York
Stock Exchange.

     Short-term debt securities with remaining maturities of sixty days or less
at the time of purchase are valued at amortized cost, unless the Trustees
determine such does not reflect the securities' market value, in which case
these securities will be valued at their fair value as determined by the
Trustees.

     Options on equity securities are valued at the mean between their latest
bid and asked prices. Futures are valued at the latest sale price on the
commodities exchange on which they trade unless the Trustees determine such
price does not reflect their market value, in which case they will be valued at
their fair value as determined in good faith under procedures established by
and under the supervision of the Trustees.


IX. TAXATION OF THE FUND AND SHAREHOLDERS
- --------------------------------------------------------------------------------
     The Fund generally will make two basic types of distributions: ordinary
dividends and long-term capital gain distributions. These two types of
distributions are reported differently on a shareholder's income tax return and
they are also subject to different rates of tax. The tax treatment of the
investment activities of the Fund will affect the amount and timing and
character of the distributions made by the Fund. Tax issues relating to the
Fund are not generally a consideration for shareholders such as tax exempt
entities and tax-advantaged retirement vehicles such as an IRA or 401(k) plan.
Shareholders are urged to consult their own tax professionals regarding
specific questions as to federal, state or local taxes.

     INVESTMENT COMPANY TAXATION. The Fund intends to remain qualified as a
regulated investment company under Subchapter M of the Internal Revenue Code of
1986. As such, the Fund will not be subject to federal income tax on its net
investment income and capital gains, if any, to the extent that it distributes
such income and capital gains to its shareholders.

     The Fund generally intends to distribute sufficient income and gains so
that the Fund will not pay corporate income tax on its earnings. The Fund also
generally intends to distribute to its shareholders in each calendar year a
sufficient amount of ordinary income and capital gains to avoid the imposition
of a 4% excise tax. However, the Fund may instead determine to retain all or
part of any net long-term capital gains in any year for reinvestment. In such
event, the Fund will pay federal income tax (and possibly excise tax) on such
retained gains.

     Gains or losses on sales of securities by the Fund will be long-term
capital gains or losses if the securities have a tax holding period of more
than one year. Gains or losses on the sale of securities with a tax holding
period of one year or less will be short-term gains or losses.

     Gains or losses on the Fund's transactions in listed non-equity options,
futures and options on futures generally are treated as 60% long-term and 40%
short-term. When the Fund engages in options


                                       28
<PAGE>

and futures transactions, various tax rules may accelerate or defer recognition
of certain gains and losses, change the character of certain gains or losses,
or alter the holding period of other investments held by the Fund. The
application of these rules would therefore also affect the amount, timing and
character of distributions made by the Fund.

     Under certain tax rules, the Fund may be required to accrue a portion of
any discount at which certain securities are purchased as income each year even
though the Fund receives no payments in cash on the security during the year.
To the extent that the Fund invests in such securities, it would be required to
pay out such accrued discount as an income distribution in each year in order
to avoid taxation at the Fund level. Such distributions will be made from the
available cash of the Fund or by liquidation of portfolio securities if
necessary. If a distribution of cash necessitates the liquidation of portfolio
securities, the Investment Manager will select which securities to sell. The
Fund may realize a gain or loss from such sales. In the event the Fund realizes
net capital gains from such transactions, its shareholders may receive a larger
capital gain distribution, if any, than they would in the absence of such
transactions.

     TAXATION OF DIVIDENDS AND DISTRIBUTIONS. Shareholders normally will have
to pay federal income taxes, and any state and/or local income taxes, on the
dividends and other distributions they receive from the Fund. Such dividends
and distributions, to the extent that they are derived from net investment
income or short-term capital gains, are taxable to the shareholder as ordinary
income regardless of whether the shareholder receives such payments in
additional shares or in cash.

     Distributions of net long-term capital gains, if any, are taxable to
shareholders as long-term capital gains regardless of how long a shareholder
has held the Fund's shares and regardless of whether the distribution is
received in additional shares or in cash. The Taxpayer Relief Act of 1997
reduced the maximum tax on long-term capital gains applicable to individuals
from 28% to 20%.

     Shareholders are generally taxed on any ordinary dividend or capital gain
distributions from the Fund in the year they are actually distributed. However,
if any such dividends or distributions are declared in October, November or
December and paid in January then such amounts will be treated for tax purposes
as received by the shareholders on December 31, to shareholders of record of
such month.

     Subject to certain exceptions, a corporate shareholder may be eligible for
a 70% dividends received deduction to the extent that the Fund earns and
distributes qualifying dividends from its investments. Distributions of net
capital gains by the Fund will not be eligible for the dividends received
deduction.

     Shareholders who are not citizens or residents of the United States and
certain foreign entities may be subject to withholding of United States tax on
distributions made by the Fund of investment income and short term capital
gains.

     After the end of each calendar year, shareholders will be sent full
information on their dividends and capital gain distributions for tax purposes,
including the portion taxable as ordinary income, the portion taxable as
long-term capital gains and the amount of any dividends eligible for the
federal dividends received deduction for corporations.

     PURCHASES AND REDEMPTIONS AND EXCHANGES OF FUND SHARES. Any dividend or
capital gains distribution received by a shareholder from any investment
company will have the effect of reducing the net asset value of the
shareholder's stock in that company by the exact amount of the dividend or
capital gains distribution. Furthermore, such dividends and capital gains
distributions are subject to federal income taxes. If the net asset value of
the shares should be reduced below a shareholder's cost as a result of the
payment of dividends or the distribution of realized long-term capital gains,
such payment or distribution would be in part a return of the shareholder's
investment but nonetheless would be taxable to the shareholder. Therefore, an
investor should consider the tax implications of purchasing Fund shares
immediately prior to a distribution record date.

     In general, a sale of shares results in capital gain or loss, and for
individual shareholders, is taxable at a federal rate dependent upon the length
of time the shares were held. A redemption of a shareholder's Fund shares is
normally treated as a sale for tax purposes. Fund shares held for a period of
one year


                                       29
<PAGE>

or less will, for tax purposes, generally result in short-term gains or losses
and those held for more than one year generally result in long-term gain or
loss. Any loss realized by shareholders upon a redemption of shares within six
months of the date of their purchase will be treated as a long-term capital
loss to the extent of any distributions of net long-term capital gains with
respect to such shares during the six-month period.

     Gain or loss on the sale or redemption of shares in the Fund is measured
by the difference between the amount received and the tax basis of the shares.
Shareholders should keep records of investments made (including shares acquired
through reinvestment of dividends and distributions) so they can compute the
tax basis of their shares. Under certain circumstances a shareholder may
compute and use an average cost basis in determining the gain or loss on the
sale or redemption of shares.

     Exchanges of Fund shares for shares of another fund, including shares of
other Morgan Stanley Dean Witter Funds, are also subject to similar tax
treatment. Such an exchange is treated for tax purposes as a sale of the
original shares in the first fund, followed by the purchase of shares in the
second fund.

     If a shareholder realizes a loss on the redemption or exchange of a fund's
shares and reinvests in that fund's shares within 30 days before or after the
redemption or exchange, the transactions may be subject to the "wash sale"
rules, resulting in a postponement of the recognition of such loss for tax
purposes.


X. UNDERWRITERS
- --------------------------------------------------------------------------------
     The Fund's Distributor, Morgan Stanley Dean Witter Distributors Inc.
(which has the same address as the Investment Manager), is the principal
underwriter of the Fund's shares and has agreed to purchase up to 10,000,000
shares from the Fund, which number may be increased or decreased in accordance
with the Underwriting Agreement. The Underwriting Agreement provides that the
obligation of the Distributor is subject to certain conditions precedent (such
as the filing of certain forms and documents required by various federal and
state agencies and the rendering of certain opinions of counsel) and that the
Distributor will be obligated to purchase the shares of the Fund on September
28, 1999, or such other date as may be agreed upon between the Distributor and
the Fund and to purchase shares of the Fund at a later date to be agreed upon
between the Distributor and the Fund (the "Closing Date"). Shares will not be
issued and dividends will not be declared by the Fund until after the Closing
Date.

     The Distributor will purchase Class B, Class C and Class D shares from the
Fund at $10.00 per share with all proceeds going to the Fund and will purchase
Class A shares at $10.00 per share plus a sales charge with the sales charge
paid to the Distributor and the $10.00 per share going to the Fund.

     The Distributor may, however, receive contingent deferred sales charges
for future redemptions of Class A, Class B and Class C shares (see "Purchase of
Fund Shares--Continuous Offering" in the Prospectus).

     The Distributor shall, regardless of its expected underwriting commitment,
be entitled and obligated to purchase only the number of shares for which
purchase orders have been received by the Distributor prior to 2:00 p.m., New
York time, on the third business day preceding the Closing Date, or such other
date as may be agreed to between the parties.

     The minimum number of Fund shares which may be purchased pursuant to this
offering is 100 shares. Certificates for shares purchased will not be issued
unless requested by the shareholder in writing.

     The Distributor has agreed to pay certain expenses of the initial offering
and the subsequent Continuous Offering of the Portfolio's shares. The Fund has
agreed to pay certain compensation to the Distributor pursuant to a Plan of
Distribution pursuant to Rule 12b-1 under the Act to compensate the Distributor
for services it renders and the expenses it bears under the Underwriting
Agreement. The Fund


                                       30
<PAGE>

will bear the cost of initial typesetting, printing and distribution of
Prospectuses and Statements of Additional Information and supplements thereto
to shareholders. The Fund has agreed to indemnify the Distributor against
certain liabilities, including liabilities under the Securities Act of 1933, as
amended.

     A continuous offering of the Fund's shares will commence approximately two
weeks after the Closing Date. The Distributor, as the principal underwriter of
the shares, has certain obligations under the Distribution Agreement concerning
the distribution of the shares. These obligations and the compensation the
Distributor receives are described above in the sections entitled "Principal
Underwriter" and "Rule 12b-1 Plans."

XI. CALCULATION OF PERFORMANCE DATA
- --------------------------------------------------------------------------------
     From time to time, the Fund may quote its "total return" in advertisements
and sales literature. These figures are computed separately for Class A, Class
B, Class C and Class D shares. The Fund's "average annual total return"
represents an annualization of the Fund's total return over a particular period
and is computed by finding the annual percentage rate which will result in the
ending redeemable value of a hypothetical $1,000 investment made at the
beginning of a one, five or ten year period, or for the period from the date of
commencement of operations, if shorter than any of the foregoing. The ending
redeemable value is reduced by any contingent deferred sales charge ("CDSC") at
the end of the one, five, ten year or other period. For the purpose of this
calculation, it is assumed that all dividends and distributions are reinvested.
The formula for computing the average annual total return involves a percentage
obtained by dividing the ending redeemable value by the amount of the initial
investment (which in the case of Class A shares is reduced by the Class A
initial sales charge), taking a root of the quotient (where the root is
equivalent to the number of years in the period) and subtracting 1 from the
result.

     In addition, the Fund may advertise its total return for each Class over
different periods of time by means of aggregate, average, year-by-year or other
types of total return figures. These calculations may or may not reflect the
imposition of the maximum front-end sales charge for Class A or the deduction
of the CDSC for each of Class B and Class C which, if reflected, would reduce
the performance quoted. For example, the average annual total return of the
Fund may be calculated in the manner described above, but without deduction for
any applicable sales charge.

     In addition, the Fund may compute its aggregate total return for each
Class for specified periods by determining the aggregate percentage rate which
will result in the ending value of a hypothetical $1,000 investment made at the
beginning of the period. For the purpose of this calculation, it is assumed
that all dividends and distributions are reinvested. The formula for computing
aggregate total return involves a percentage obtained by dividing the ending
value (without reduction for any sales charge) by the initial $1,000 investment
and subtracting 1 from the result.

     The Fund may also advertise the growth of hypothetical investments of
$10,000, $50,000 and $100,000 in each Class of shares of the Fund by adding 1
to the Fund's aggregate total return to date (expressed as a decimal and
without taking into account the effect of any applicable CDSC) and multiplying
by $9,475, $48,000 and $97,000 in the case of Class A (investments of $10,000,
$50,000 and $100,000 adjusted for the initial sales charge) or by $10,000,
$50,000 and $100,000 in the case of each of Class B, Class C and Class D, as
the case may be.


     The Fund from time to time may also advertise its performance relative to
certain performance rankings and indexes compiled by recognized organizations.


                                       31
<PAGE>

XII. FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
     EXPERTS. The Statement of Assets and Liabilities of the Fund at July 21,
1999 is included in this Statement of Additional Information and in reliance on
the report of PricewaterhouseCoopers LLP, independent accountants, and on the
authority of that firm as experts in auditing and accounting.


                                   * * * * *


     This Statement of Additional Information and the Prospectus do not contain
all of the information set forth in the Registration Statement the Fund has
filed with the SEC. The complete Registration Statement may be obtained from
the SEC.


                                       32
<PAGE>

MORGAN STANLEY DEAN WITTER TOTAL MARKET INDEX FUND
STATEMENT OF ASSETS AND LIABILITIES AT JULY 21, 1999
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                                  <C>
ASSETS:
 Cash ...............................................................   $100,000
 Deferred offering costs (Note 1) ...................................    160,200
                                                                        --------
   Total Assets .....................................................    260,200
                                                                        --------
LIABILITIES:
 Offering costs payable (Note 1) ....................................    160,200
 Commitments (Notes 1 and 2) ........................................         --
   Total Liabilities ................................................    160,200
                                                                        --------
   Net Assets .......................................................   $100,000
                                                                        ========
CLASS A SHARES:
Net Assets ..........................................................   $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)............      2,500
 NET ASSET VALUE PER SHARE ..........................................   $  10.00
                                                                        ========
 MAXIMUM OFFERING PRICE
 (net asset value plus 5.54% of net asset value) ....................   $  10.55
                                                                        ========
CLASS B SHARES:
Net Assets ..........................................................   $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)............      2,500
   NET ASSET VALUE PER SHARE ........................................   $  10.00
                                                                        ========
CLASS C SHARES:
Net Assets ..........................................................   $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)............      2,500
   NET ASSET VALUE PER SHARE ........................................   $  10.00
                                                                        ========
CLASS D SHARES:
Net Assets ..........................................................   $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)............      2,500
   NET ASSET VALUE PER SHARE ........................................      10.00
                                                                        ========
</TABLE>

- ----------
NOTE 1--Morgan Stanley Dean Witter Total Market Index Fund (the "Fund") was
organized as a Massachusetts business trust on March 11, 1999. To date the Fund
has had no transactions other than those relating to organizational matters and
the sale of 2,500 shares of beneficial interest for $25,000 of each class of
the Fund to Morgan Stanley Dean Witter Advisors Inc. (the "Investment
Manager"), a wholly-owned subsidiary of Morgan Stanley Dean Witter & Co.
("MSDW"). The Fund is registered under the Investment Company Act of 1940, as
amended (the "Act"), as a diversified, open-end management investment company.
The investment objective of the Fund is to provide investment results that,
before expenses, correspond to the total return of the U.S. stock market as
measured by the Wilshire 5000 Equity Index. The Fund uses a statistical
sampling approach to recreate the Wilshire 5000 Equity Index in terms of
industry, size, dividend yield and other characteristics. Estimated
organizational expenses of the Fund in the amount of approximately $17,000
incurred prior to the offering of the Fund's shares will be absorbed by the
Investment Manager. It is currently estimated that the Investment Manager will
incur, and be reimbursed, approximately $160,200 by the Fund in offering costs.
Actual costs could differ from these estimates. Offering costs will be deferred
and amortized by the Fund on the straight-line method over the period of
benefit of approximately one year or less from the date of commencement of
operations.


                                       33
<PAGE>

NOTE 2--The Fund has entered into an Investment Management Agreement with the
Investment Manager. The Investment Manager will provide investment advice and
portfolio management relating to the Fund's investments in securities. Certain
officers and/or trustees of the Fund are officers and/or directors of the
Investment Manager. Under the terms of the Investment Management Agreement, the
Investment Manager maintains certain of the Fund's books and records and
furnishes, at its own expense, such office space, facilities, equipment,
supplies, clerical help and bookkeeping and certain legal services as the Fund
may reasonably require in the conduct of its business. In addition, the
Investment Manager pays the salaries of all personnel, including officers of
the Fund, who are employees of the Investment Manager. The Investment Manager
also bears the cost of the Fund's telephone service, heat, light, power and
other utilities.

     As full compensation for the services and facilities furnished to the Fund
and expenses of the Fund incurred by the Investment Manager, the Fund will pay
the Investment Manager monthly compensation calculated daily by applying the
annual rate of 0.40% to the Fund's daily net assets. The Investment Manager has
agreed to assume all operating expenses (except for brokerage and Plan of
Distribution fees) and to waive the compensation provided for in its Management
Agreement until such time as the Fund has $50 million of net assets or six
months from the date of commencement of the Fund's operations, whichever occurs
first. Thereafter, the Investment Manager has agreed to assume all expenses
(except for brokerage and Plan of Distribution fees) and to waive the
compensation provided for in its Management Agreement to the extent that such
expenses and compensation on an annualized basis exceed 0.50% of the daily net
assets of the Fund.

     Shares of the Fund are distributed by Morgan Stanley Dean Witter
Distributors Inc. (the "Distributor"), an affiliate of the Investment Manager.
The Fund has adopted a Plan of Distribution (the "Plan") pursuant to Rule 12b-1
under the Act. The Plan provides that the Fund will pay the Distributor a fee
which is accrued daily and paid monthly at the following annual rates; (i)
Class A -- up to 0.25% of the average daily net assets of Class A; (ii) Class B
- -- 1.0% of the average daily net assets of Class B; and (iii) Class C -- up to
1.0% of the average daily net assets of Class C. In the case of Class A shares,
amounts paid under the Plan are paid to the Distributor for services provided.
In the case of Class B and Class C shares, amounts paid under the Plan are paid
to the Distributor for services provided and the expenses borne by it and
others in the distribution of the shares of these Classes, including the
payment of commissions for sales of these Classes and incentive compensation
to, and expenses of, Morgan Stanley Dean Witter Financial Advisors and others
who engage in or support distribution of the shares or who service shareholder
accounts, including overhead and telephone expenses, printing and distribution
of prospectuses and reports used in connection with the offering of these
shares to other than current shareholders; and preparation, printing and
distribution of sales literature and advertising materials. In addition, the
Distributor may utilize fees paid pursuant to the Plan, in the case of Class B
shares, to compensate Dean Witter Reynolds Inc. ("DWR"), an affiliate of the
Investment Manager and Distributor and other selected broker-dealers for their
opportunity costs in advancing such amounts, which compensation would be in the
form of a carrying charge on any unreimbursed expenses.

     In the case of Class B shares, provided that the Plan continues in effect,
any cumulative expenses incurred by the Distributor but not yet recovered may
be recovered through the payment of future distribution fees from the Fund
pursuant to the Plan and contingent deferred sales charges paid by investors
upon redemption of Class B shares. Although there is no legal obligation for
the Fund to pay expenses incurred in excess of payments made to the Distributor
under the Plan and the proceeds of contingent deferred sales charges paid by
investors upon redemption of shares, if for any reason the Plan is terminated,
the Trustees will consider at that time the manner in which to treat such
expenses.

     In the case of Class A shares and Class C shares, expenses incurred
pursuant to the Plan in any calendar year in excess of 0.25% or 1.0% of the
average daily net assets of Class A or Class C, respectively, will not be
reimbursed by the Fund through payments in any subsequent year, except that
expenses representing a gross sales credit to Morgan Stanley Dean Witter
Financial Advisors or other selected broker-dealer representatives may be
reimbursed in the subsequent calendar year.

     Morgan Stanley Dean Witter Trust FSB, an affiliate of the Investment
Manager and the Distributor, is the transfer agent of the Fund's shares,
dividend disbursing agent for payment of dividends and distributions on Fund
shares and agent for shareholders under various investment plans.


                                       34
<PAGE>

REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
To the Shareholder and Trustees of

Morgan Stanley Dean Witter Total Market Index Fund


In our opinion, the accompanying statement of assets and liabilities presents
fairly, in all material respects, the financial position of Morgan Stanley Dean
Witter Total Market Index Fund (hereafter referred to as the "Fund") at July
21, 1999, in conformity with generally accepted accounting principles. This
financial statement is the responsibility of the Fund's management; our
responsibility is to express an opinion on this financial statement based on
our audit. We conducted our audit of this financial statement in accordance
with generally accepted auditing standards which require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statement is free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statement, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audit provides a reasonable basis for the
opinion expressed above.




PricewaterhouseCoopers LLP
1177 Avenue of the Americas
New York, New York 10036
July 21, 1999

                                       35


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