MORGAN STANLEY DEAN WITTER MID CAP DIVIDEND GROWTH SEC, 485BPOS, 1999-06-25

MORGAN STANLEY DEAN WITTER MID CAP DIVIDEND GROWTH SEC
485BPOS, 1999-06-25

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<PAGE>

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 25, 1999
REGISTRATION NO. 333-43135
811-8577
- --------------------------------------------------------------------------------
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
---------------------
FORM N-1A
REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933 [X]
PRE-EFFECTIVE AMENDMENT NO. [ ]
POST-EFFECTIVE AMENDMENT NO. 2 [X]
AND/OR
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
ACT OF 1940 [X]
AMENDMENT NO. 3 [X]
---------------------
MORGAN STANLEY DEAN WITTER MID-CAP
DIVIDEND GROWTH SECURITIES
(A MASSACHUSETTS BUSINESS TRUST)
(EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)

TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICE)

REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (212) 392-1600

BARRY FINK, ESQ.
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
(NAME AND ADDRESS OF AGENT FOR SERVICE)
---------------------
COPY TO:

DAVID M. BUTOWSKY, ESQ.
GORDON ALTMAN BUTOWSKY
WEITZEN SHALOV & WEIN
114 WEST 47TH STREET
NEW YORK, NEW YORK 10036
---------------------
APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
As soon as practicable after this Post-Effective Amendment becomes effective.

IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)

immediately upon filing pursuant to paragraph (b)
----
X on June 30, 1999 pursuant to paragraph (b)
-----
60 days after filing pursuant to paragraph (a)
----
on (date) pursuant to paragraph (a) of rule 485.
----

AMENDING THE PROSPECTUS AND UPDATING FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
CROSS-REFERENCE SHEET
FORM N-1A

<TABLE>
<CAPTION>
ITEM CAPTION
- -------------- -------------------------------------------------------
<S> <C>
PART A PROSPECTUS
1. ......... Cover Page; Back Cover
2. ......... Investment Objective: Principal Investment Strategies,
Principal Risks, Past Performance
3. ......... Fees and Expenses
4. ......... Investment Objective: Principal Investment Strategies;
Principal Risks; Additional Investment Strategy
Information; Additional Risk Information
5. ......... Not Applicable
6. ......... Fund Management
7. ......... Pricing Fund Shares; How to Buy Shares; How
to Exchange Shares; How to Sell Shares;
Distributions; Tax Consequences
8. ......... Share Class Arrangements
9. ......... Financial Highlights
PART B STATEMENT OF ADDITIONAL INFORMATION

</TABLE>

Information required to be included in Part B is set forth under the
appropriate caption in Part B of this Registration Statement.

PART C

Information required to be included in Part C is set forth under the
appropriate item, so numbered, in Part C of this Registration Statement.
<PAGE>

PROSPECTUS - JUNE 30, 1999

MORGAN STANLEY DEAN WITTER

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

MID-CAP DIVIDEND GROWTH SECURITIES

A MUTUAL FUND THAT SEEKS TOTAL RETURN

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

<PAGE>

CONTENTS

<TABLE>
<S> <C>
The Fund Investment Objective ......................................... 1
Principal Investment Strategies .............................. 1
Principal Risks .............................................. 1
Past Performance ............................................ 2
Fees and Expenses ........................................... 3
Additional Investment Strategy Information ................... 4
Additional Risk Information .................................. 4
Fund Management ............................................. 6
Shareholder Information Pricing Fund Shares .......................................... 7
How to Buy Shares ............................................ 7
How to Exchange Shares ....................................... 9
How to Sell Shares ........................................... 11
Distributions ................................................ 12
Tax Consequences ............................................. 13
Share Class Arrangements ..................................... 13
Financial Highlights ............................................................. 20
Our Family of Funds .............................................. Inside Back Cover

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

<PAGE>

THE FUND

[GRAPHIC OMITTED]

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

Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities seeks total
return.

[GRAPHIC OMITTED]

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

The Fund will normally invest at least 65% of its total assets in a diversified
portfolio of common stocks and other equity securities of companies whose
capitalization falls within the range of companies comprising the Standard &
Poor's Mid-Cap 400 Index, which capitalization range is approximately between
$207 million and $13.9 billion as of May 28, 1999, that currently pay dividends
and that have the potential for increasing dividends. The Fund's "Investment
Manager," Morgan Stanley Dean Witter Advisors Inc., initially employs a
quantitative screening process in an attempt to identify a number of common
stocks that are underated and that currently pay dividends. The Investment
Manager then applies qualitative analysis to determine which stocks it believes
have the potential to increase dividends and, finally, to determine whether any
of the stocks should be added to or sold from the Fund.

(sidebar)
TOTAL
RETURN
An investment objective having the goal of selecting securities with the
potential to rise in price and pay out income.
(end sidebar)

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 certain other common stocks, fixed-income,
convertible and foreign securities.

In pursuing the Fund's investment objective, the Investment Manager has
considerable leeway in deciding which investments it buys, holds or sells on a
day-to-day basis -- and which trading 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.

[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.

The Fund will invest in medium-sized companies that involve 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.

<PAGE>

The performance of the Fund also will depend on whether the Investment Manager
is successful in pursuing the Fund's investment strategy. The Fund is also
subject to other risks from its permissible investments including the risks
associated with other common stocks, fixed-income, convertible and foreign
securities. 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.

[GRAPHIC OMITTED]

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

(sidebar)
TOTAL RETURNS
This table compares the Fund's returns with those of a broad measure of market
performance over time, as well as with an index of Funds with similar investment
objectives. The Fund's returns include the maximum applicable sales charge for
each Class and assume you sold your shares at the end of each period.
(end sidebar)

TOTAL RETURNS (AS OF DECEMBER 31, 1998)
<TABLE>
<CAPTION>
LIFE OF FUND
(SINCE 5/27/98)
<S> <C>
Class A(1) -12.87%
Class B -13.27%
Class C(1) -13.29%
Class D(1) -12.74%
S&P Mid-Cap 400 Index(1) -11.34%
Lipper Mid-Cap Fund Index(2) 6.44%
</TABLE>

(1) The S&P Mid-Cap 400 Index is a market-value weighted index, the performance
of which is based on the average performance of 400 domestic stocks chosen
for market size, liquidity and industry group representation. The Index
does not include any expenses, fees or charges. The Index is unmanaged and
should not be considered an investment.

(2) The Lipper Mid-Cap Fund Index is an equally-weighted performance index of
the largest qualifying funds (based on net assets) in the Lipper Mid-Cap
Funds objective. The Index, which is adjusted for capital gains
distributions and income dividends, is unmanaged and should not be
considered an investment. There are currently 30 funds represented in this
Index.

<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.

ANNUAL FUND
OPERATING EXPENSES
These expenses are
deducted from the
Fund's assets and are
based on expenses paid
for the fiscal year ended
February 28, 1999.
(end sidebar)

<TABLE>
<CAPTION>
CLASS A CLASS B CLASS C CLASS D
<S> <C> <C> <C> <C>
SHAREHOLDER FEES
Maximum sales charge (load) imposed on
purchases (as a percentage of offering price) 5.25%(1) None None None
Maximum deferred sales charge (load) (as a
percentage based on the lesser of the offering None(2) 5.00%(3) 1.00%(4) None
price or net asset value at redemption)
ANNUAL FUND OPERATING EXPENSES
Management fee 0.75% 0.75% 0.75% 0.75%
Distribution and service (12b-1) fees 0.25% 1.00% 1.00% None
Other expenses 0.30% 0.30% 0.30% 0.30%
Total annual Fund operating expenses 1.30% 2.05% 2.05% 1.05%
</TABLE>

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

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

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

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

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 $ 651 $ 917 $ 651 $ 917
CLASS B $ 708 $ 944 $ 208 $ 644
CLASS C $ 308 $ 644 $ 208 $ 644
CLASS D $ 108 $ 335 $ 108 $ 335

</TABLE>

<PAGE>

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.

<PAGE>

[GRAPHIC OMITTED]

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

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

OTHER COMMON STOCKS AND FIXED-INCOME SECURITIES. The Fund may invest up to 35%
of its assets in common stocks of U.S. companies that fall outside the range of
mid-cap securities or in non-dividend paying mid-cap securities and in U.S.
government securities, investment grade corporate debt securities and/or money
market instruments. The Fund's fixed-income investments may include zero coupon
securities, which are purchased at a discount and make no interest payments
until maturity.

CONVERTIBLE SECURITIES. The Fund may invest up to 35% of its assets in
convertible bonds or preferred stocks that are convertible into common stock.
There are no minimum rating or quality requirements with respect to convertible
securities in which the Fund may invest. The Fund will not invest in
convertible securities that are in default in payment of principal or interest.

FOREIGN SECURITIES. The Fund may invest up to 25% of assets in equity
securities (including depository receipts) issued by foreign issuers. The Fund
will invest in foreign securities whose market capitalization is within the
range of the companies comprising the S&P Mid-Cap Index. Although certain of
these securities may not be mid-cap companies in the foreign markets in which
they trade, they will be included in the mid-cap securities in which the Fund
may invest. The Fund may invest any amount of its assets in foreign securities
(including depository receipts) that are listed in the U.S. on a national
securities exchange.

DEFENSIVE INVESTING. The Fund may take temporary "defensive" positions in
attempting to respond to adverse market conditions. The Fund may invest any
amount of its total assets in cash or money market instruments in a defensive
posture when the Investment Manager believes it is advisable to do so. Although
taking a defensive posture is designed to protect the Fund from an anticipated
market downturn, it could have the effect of reducing the benefit from any
upswing in the market.

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.

[GRAPHIC OMITTED]

ADDITIONAL RISK INFORMATION
- -----------------------------------------------------------

This section provides additional information relating to the principal risks of
investing in the Fund.

OTHER EQUITY SECURITIES. A principal risk of investing in the Fund is
associated with its common stock investments that fall outside the range of
mid-cap securities or non-dividend paying mid-cap securities. These 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.

<PAGE>

FIXED-INCOME SECURITIES. Principal risks of investing in the Fund are
associated with its fixed-income investments. All fixed-income securities, such
as corporate debt securities, are subject to two types of risk: credit risk and
interest rate risk. Credit risk refers to the possibility that the issuer of a
security will be unable to make interest payments and repay the principal on
its debt.

Interest rate risk refers to fluctuations in the value of a fixed-income
security resulting from changes in the general level of interest rates. When
the general level of interest rates goes up, the prices of most fixed-income
securities go down. When the general level of interest rates goes down, the
prices of most fixed-income securities go up. (Zero coupon securities are
typically subject to greater price fluctuations than comparable securities that
pay interest.)

CONVERTIBLE SECURITIES. The Fund also may invest a portion of its assets in
convertible securities, which debt or preferred are securities that generally
pay interest and may be converted into common stock. These securities may carry
risks associated with both common stock and fixed-income securities. All or a
portion of the convertible securities in which the Fund may invest will
generally be below investment grade. Securities below investment grade are
commonly known as "junk bonds" and have speculative characteristics.

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

Foreign securities also have risks related to economic and political
developments abroad, including expropriations, confiscatory taxation, exchange
control regulation, limitations on the use or transfer of Fund assets and any
effects of foreign social, economic or political instability. Foreign
companies, in general, are not subject to the regulatory requirements of U.S.
companies and, as such, there may be less publicly available information about
these companies. Moreover, foreign accounting, auditing and financial reporting
standards generally are different from those applicable to U.S. companies.
Finally, in the event of a default of any foreign debt obligations, it may be
more difficult for the Fund to obtain or enforce a judgment against the issuers
of the securities.

Securities of foreign issuers may be less liquid than comparable securities of
U.S. issuers and, as such, their price changes may be more volatile.
Furthermore, foreign exchanges and broker-dealers are generally subject to less
government and exchange scrutiny and regulation than their U.S. counterparts.
In addition, differences in clearance and settlement procedures in foreign
markets may occasion delays in settlements of the Fund's trades effected in
those markets.

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

<PAGE>

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 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. Acordingly, the Fund's investments may be
adversely affected.

[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 $134.2 billion in assets under
management or administration as of May 31, 1999.
(end sidebar)

The Fund's portfolio is managed within the Investment Manager's Growth and
Income Group. Paul D. Vance, Senior Vice President of the Investment Manager
and Steven M. MacNamara, Assistant Vice President of the Investment Manager,
are the primary portfolio managers of the Fund. Mr. Vance has been a portfolio
manager with the Investment Manager for over five years. Mr. MacNamara has been
a portfolio manager with the Investment Manager since April, 1996, and Senior
Portfolio Manager with Investment Advisors International from February, 1991
until December, 1995.

The Fund pays the Investment Manager a monthly management fee as full
compensation for the services and facilities furnished to the Fund, and for
Fund expenses assumed by the Investment Manager. The fee is based on the Fund's
average daily net assets. For the fiscal year ended February 28, 1999, the Fund
accrued total compensation to the Investment Manager amounting to 0.75% of the
Fund's average daily net assets.

<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. In addition, if the Fund
holds securities primarily listed on foreign exchanges, the value of the Fund's
portfolio securities may change on days when you will not be able to purchase
or sell your shares.

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

[GRAPHIC OMITTED]

HOW TO BUY SHARES
- -----------------------------------------------
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.deanwitter.com/funds
(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.

<PAGE>

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.

(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)

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 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
Mid-Cap Dividend Growth Securities.

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

<PAGE>

[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, 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 minimum,
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.
Certain services normally available to shareholders of Money Market Funds,
including the check writing privilege, are 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
include requiring various forms of personal identification such as name,
mailing address, social security or other tax identification number. Telephone
instructions also may be recorded.

Telephone instructions will be accepted if received by the Fund's transfer
agent between 9:00 a.m. and 4:00 p.m. Eastern time, on any day the New York
Stock Exchange is open for business. During periods of drastic economic or
market changes, it is possible that the telephone exchange procedures may be
difficult to implement, although this has not been the case with the Fund in
the past.

<PAGE>

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, New Jersey 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).

<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 EasyInvestSM, if after
12 months the shareholder has invested less than $1,000 in the account.

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

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

[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 fixed-income investments. These amounts are passed along to Fund
shareholders as "income dividend distributions." The Fund realizes capital gains
whenever it sells securities for a higher price than it paid for them. These
amounts may be passed along as "capital gain distributions."

(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 and capital gains are distributed semi-annually. Capital gains,
if any, are usually distributed in June and 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.

<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.

<PAGE>

The chart below compares the sales charge and the maximum annual 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>

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.

<PAGE>

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 shares within a thirteen-month
period. It is available for purchases of Class A shares of Multi-Class Funds
and/or shares of FSC Funds. 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 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)

<PAGE>

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 persons is a beneficiary.

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

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

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

<TABLE>
<CAPTION>
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

<PAGE>

in gainful employment), if the shares are: (i) registered either in your name
(not a trust) or in the names of you and your spouse as joint tenants with
right of survivorship; or (ii) held in a qualified corporate or self-employed
retirement plan, IRA or 403(b) Custodial Account, provided in either case that
the sale is requested within one year of your death or initial determination
of disability.

o Sales in connection with the following retirement plan "distributions": (i)
lump-sum or other distributions from a qualified corporate or self-employed
retirement plan following retirement (or, in the case of a "key employee" of
a "top heavy" plan, following attainment of age 591/2); (ii) distributions
from an IRA or 403(b) Custodial Account following attainment of age 591/2;
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.

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

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

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 shares of 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.

<PAGE>

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.

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.

<PAGE>

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.

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

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

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

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

<PAGE>

FINANCIAL HIGHLIGHTS

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

This information has been audited by PricewaterhouseCoopers LLP, whose report,
along with the Fund's financial statements, is included in the annual report,
which is available upon request.

CLASS A

<TABLE>
<CAPTION>
FOR THE PERIOD MAY 27, 1998*
THROUGH FEBRUARY 28, 1999**
<S> <C>
SELECTED PER-SHARE DATA
Net asset value, beginning of period $ 10.00
- ------------------------------------------ ----------
Income (loss) from investment operations
Net investment income 0.06
Net realized and unrealized loss (2.17)
----------
Total loss from investment operations (2.11)
- ------------------------------------------ ----------
Less dividends from
Net investment income (0.06)
Net asset value, end of period $ 7.83
- ------------------------------------------ ----------
TOTAL RETURN+(1) (21.13)%
RATIOS TO AVERAGE NET ASSETS (2)(3)
Expenses 1.30%
Net investment income 0.93%
SUPPLEMENTAL DATA
Net assets, end of period, in thousands $ 9,536
Portfolio turnover rate (1) 124%

</TABLE>

* Commencement of operations.

** The per share amounts were computed using an average number of shares
outstanding during the period.

+ Does not reflect the deduction of sales charge. Calculated based on the
net asset value as of the last business day of the period.

(1) Not annualized.

(2) Annualized.

(3) Reflects overall Fund ratios for investment income and non-class specific
expenses.

<PAGE>

CLASS B

<TABLE>
<CAPTION>
FOR THE PERIOD MAY 27, 1998*
THROUGH FEBRUARY 28, 1999**
<S> <C>
SELECTED PER-SHARE DATA
Net asset value, beginning of period $ 10.00
- ------------------------------------------ ---------
Income (loss) from investment operations
Net investment income 0.01
Net realized and unrealized loss (2.17)
---------
Total loss from investment operations (2.16)
- ------------------------------------------ ---------
Less dividends from
Net investment income (0.02)
Net asset value, end of period $ 7.82
- ------------------------------------------ ---------
TOTAL RETURN+(1) (21.59)%
RATIOS TO AVERAGE NET ASSETS (2)(3)
Expenses 2.05%
Net investment income 0.18%
SUPPLEMENTAL DATA
Net assets, end of period, in thousands $283,779
Portfolio turnover rate (1) 124%
</TABLE>

CLASS C

<TABLE>
<CAPTION>
<S> <C>
SELECTED PER-SHARE DATA
Net asset value, beginning of period $ 10.00
- ------------------------------------------ --------
Income (loss) from investment operations
Net investment income 0.01
Net realized and unrealized loss (2.17)
--------
Total loss from investment operations (2.16)
- ------------------------------------------ --------
Less dividends from
Net investment income (0.02)
Net asset value, end of period $ 7.82
- ------------------------------------------ --------
TOTAL RETURN+(1) (21.61)%
RATIOS TO AVERAGE NET ASSETS (2)(3)
Expenses 2.05%
Net investment income 0.18%
SUPPLEMENTAL DATA
Net assets, end of period, in thousands $18,075
Portfolio turnover rate (1) 124%
</TABLE>

* Commencement of operations.

** The per share amounts were computed using an average number of shares
outstanding during the period.

+ Does not reflect the deduction of sales charge. Calculated based on the
net asset value as of the last business day of the period.

(1) Not annualized.

(2) Annualized.

(3) Reflects overall Fund ratios for investment income and non-class specific
expenses.

<PAGE>

CLASS D

<TABLE>
<CAPTION>
FOR THE PERIOD MAY 27, 1998*
THROUGH FEBRUARY 28, 1999**
<S> <C>
SELECTED PER-SHARE DATA
Net asset value, beginning of period $ 10.00
- ------------------------------------------ --------
Income (loss) from investment operations
Net investment income 0.06
Net realized and unrealized loss (2.16)
--------
Total loss from investment operations (2.10)
- ------------------------------------------ --------
Less dividends from
Net investment income (0.07)
Net asset value, end of period $ 7.83
- ------------------------------------------ --------
TOTAL RETURN+(1) (21.01) %
RATIOS TO AVERAGE NET ASSETS (2)(3)
Expenses 1.05%
Net investment income 1.18%
SUPPLEMENTAL DATA
Net assets, end of period, in thousands $1,485
Portfolio turnover rate (1) 124%
</TABLE>

* Commencement of operations.
** The per share amounts were computed using an average number of shares
outstanding during the period.
+ Does not reflect the deduction of sales charge. Calculated based on the
net asset value as of the last business day of the period.
(1) Not annualized.
(2) Annualized.
(3) Reflects overall Fund ratios for investment income and non-class specific
expenses.

<PAGE>

NOTES

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

<PAGE>

NOTES

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

<PAGE>

NOTES

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

25
<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

Special Value Fund
Value Fund

THEME FUNDS
Financial Services Trust
Health Sciences Trust
Information Fund
Natural Resource Development Securities
Precious Metals and Minerals Trust

Small Cap Growth Fund

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 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
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
MID-CAP DIVIDEND GROWTH SECURITIES

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

(800) 869-NEWS

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

(sidebar)
TICKER SYMBOLS:
Class A: MDVAX
- --------------
Class B: MDVBX
- --------------
Class C: MDVCX
- --------------
Class D: MDVDX
- --------------
(end sidebar)

WWW.DEANWITTER.COM/FUNDS

Information about the Fund (including the Statement of Additional Information)
can be viewed and copied at the Securities and Exchange Commission's Public
Reference Room in Washington, DC. Information about the Reference Room's
operations may be obtained by calling the SEC at (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 811-8577)

<PAGE>

STATEMENT OF ADDITIONAL INFORMATION
MORGAN STANLEY DEAN WITTER
MID-CAP DIVIDEND GROWTH
JUNE 30, 1999 SECURITIES

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

This Statement of Additional Information is not a Prospectus. The
Prospectus (dated June 30, 1999) for the Morgan Stanley Dean Witter Mid-Cap
Dividend Growth Securities 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
Mid-Cap Dividend Growth Securities
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 ..................................... 7
III. Management of the Fund ...................................................... 8
A. Board of Trustees ......................................................... 8
B. Management Information .................................................... 9
C. Compensation .............................................................. 13
IV. Control Persons and Principal Holders of Securities .......................... 15
V. Investment Management and Other Services ..................................... 15
A. Investment Manager ........................................................ 15
B. Principal Underwriter ..................................................... 16
C. Services Provided by the Investment Manager and Fund Expenses Paid by Third
Parties .................................................................. 16
D. Dealer Reallowances ....................................................... 17
E. Rule 12b-1 Plan ........................................................... 17
F. Other Service Providers ................................................... 21
VI. Brokerage Allocation and Other Practices ..................................... 21
A. Brokerage Transactions .................................................... 21
B. Commissions ............................................................... 22
C. Brokerage Selection ....................................................... 22
D. Directed Brokerage ........................................................ 23
E. Regular Broker-Dealers .................................................... 23
VII. Capital Stock and Other Securities ........................................... 23
VIII. Purchase, Redemption and Pricing of Shares ................................... 24
A. Purchase/Redemption of Shares ............................................. 24
B. Offering Price ............................................................ 25
IX. Taxation of the Fund and Shareholders ........................................ 26
X. Underwriters ................................................................. 28
XI. Calculation of Performance Data .............................................. 28
XII. Financial Statements ......................................................... 29
</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 Mid-Cap Dividend Growth Securities, 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 December 23, 1997.

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 seek total return.

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."

MONEY MARKET SECURITIES. In addition to the money market securities in
which the Fund may otherwise invest, the Fund may invest 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;

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

4
<PAGE>

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.

INVESTMENT IN REAL ESTATE INVESTMENT TRUSTS. The Fund may invest in real
estate investment trusts, which pool investors' funds for investments primarily
in commercial real estate properties. Investment in real estate investment
trusts may be the most practical available means for the Fund to invest in the
real estate industry (the Fund is prohibited from investing in real estate
directly). As a shareholder in a real estate investment trust, the Fund would
bear its ratable share of the real estate investment trust's expenses,
including its advisory and administration fees. At the same time the Fund would
continue to pay its own investment management fees and other expenses, as a
result of which the Fund and its shareholders in effect will be absorbing
duplicate levels of fees with respect to investments in real estate investment
trusts.

LENDING PORTFOLIO SECURITIES. The Fund may lend its portfolio securities
to brokers, dealers and other financial institutions, provided that the loans
are callable at any time by the Fund, and are at all times secured by cash or
cash equivalents, which are maintained in a segregated account pursuant to
applicable regulations and that are equal to at least 100% of the market value,
determined daily, of the loaned securities. The advantage of these loans is
that the Fund continues to receive the income on the loaned securities while at
the same time earning interest on the cash amounts deposited as collateral,
which will be invested in short-term obligations. The Fund will not lend more
than 25% of the value of its total assets.

As with any extensions of credit, there are risks of delay in recovery
and, in some cases, even loss of rights in the collateral should the borrower
of the securities fail financially. However, these loans of portfolio
securities will only be made to firms deemed by the Fund's management to be
creditworthy and when the income which can be earned from such loans justifies
the attendant risks. Upon termination of the loan, the borrower is required to
return the securities to the Fund. Any gain or loss in the market price during
the loan period would inure to the Fund.

When voting or consent rights which accompany loaned securities pass to
the borrower, the Fund will follow the policy of calling the loaned securities,
to be delivered within one day after notice, to permit the exercise of the
rights if the matters involved would have a material effect on the Fund's
investment in the loaned securities. The Fund will pay reasonable finder's,
administrative and custodial fees in connection with a loan of its securities.

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

5
<PAGE>

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. 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 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 Investment Manager, 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 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. 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.

6
<PAGE>

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.

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

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

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.

The Fund will:

1. Seek total return.

The Fund may not:

1. With respect to 75% of its 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), except that the Fund may invest all or
substantially all of its assets in another registered investment company
having the same investment objective and policies and substantially the
same investment restrictions as the Fund.

2. With respect to 75% of its assets, purchase more than 10% of all
outstanding voting securities or any class of securities of any one
issuer, except that the Fund may invest all or substantially all of its
assets in another registered investment company having the same
investment objective and policies and substantially the same investment
restrictions as the Fund.

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 or its
agencies or instrumentalities.

7
<PAGE>

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.

6. Purchase securities of other investment companies, except in connection
with a merger, consolidation, reorganization or acquisition of assets or
as otherwise permitted by Section 12(d) of the Investment Company Act or
the Rules promulgated thereunder. This restriction does not apply to an
investment by the Fund of all or substantially all of its assets in
another registered investment company having the same investment
objective and policies and substantially the same investment
restrictions as the Fund.

7. 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).

8. 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.

9. Issue senior securities as defined in the 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.

10. 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.

11. Make short sales of securities.

12. Purchase securities on margin, except for such 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.

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

14. Invest for the purpose of exercising control or management of any other
issuer, except that the Fund may invest all or substantially all of its
assets in another registered investment company having the same
investment objective and policies and substantially the same investment
restrictions 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

8
<PAGE>

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
Trustees also serve as 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.

Charles A. Fiumefreddo* (66) .............. Chairman, Director or Trustee and Chief Executive
Chairman of the Board, Chief Officer of the Morgan Stanley Dean Witter Funds
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).
</TABLE>

9
<PAGE>

<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND AND ADDRESS PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------------------- -----------------------------------------------------
<S> <C>
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 Gordon Altman Butowsky Series; Director of The PMI Group, Inc. (private
Weitzen Shalov & Wein mortgage insurance); Trustee and Vice Chairman
Counsel to the Independent Trustees of The Field Museum of Natural History; formerly
114 West 47th Street associated with the Allstate Companies
New York, New York (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.

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.
</TABLE>

10
<PAGE>

John L. Schroeder (68) .................... Retired; Chairman of the Derivatives Committee
Trustee and Director or Trustee of the Morgan Stanley
c/o Gordon Altman Butowsky Dean Witter Funds and Discover Brokerage Index
Weitzen Shalov & Wein Series; Director of Citizens Utilities Company
Counsel to the Independent Trustees (telecommunications, gas, electric and water
114 West 47th Street utilities company); formerly Executive Vice
New York, New York President and Chief Investment Officer of the
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.

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.
</TABLE>

11
<PAGE>

Steven M. MacNamara (36) .................. Assistant Vice President of the Investment Manager
Assistant Vice President (since April, 1996); Assistant Vice President of
Two World Trade Center various Morgan Stanley Dean Witter Funds (since
New York, New York April, 1996); previously Senior Portfolio Manager
with Investment Advisors International (February,
1991-December, 1995).

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

- ----------
* A Trustee who is an "interested person" 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, Joseph J. McAlinden, Executive Vice President and Chief
Investment Officer of the Investment Manager and Director of the Transfer
Agent, and Mark Bavoso, Kenton J. Hinchliffe and Ira N. Ross, Senior Vice
Presidents of the Investment Manager, and Matthew Haynes, Vice President of the
Investment Manager, 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, 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. All of the Independent Trustees serve as
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

12
<PAGE>

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 the Independent Trustees and/or more than
one Committee meeting, take place on a single day, the Trustees 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. Dr. Johnson serves as Chairman of the Audit Committee.

13
<PAGE>

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 Board and committee meetings 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 STANLEY
NAME OF DEAN WITTER
INDEPENDENT TRUSTEE 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 Trustee") 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 0.5036667% of such Eligible Compensation for each full month of service as
an Independent Director or

14
<PAGE>

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 on the books of 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 Independent Trustees, to commence upon
their retirement, from the 55 Morgan Stanley Dean Witter Funds as of the
calendar year ended December 31, 1998.

RETIREMENT BENEFITS FROM ALL MORGAN STANLEY DEAN WITTER FUNDS

<TABLE>
<CAPTION>
RETIREMENT ESTIMATED
BENEFITS ANNUAL
ESTIMATED ACCRUED AS BENEFITS UPON
CREDITED YEARS ESTIMATED EXPENSES RETIREMENT
OF SERVICE AT PERCENTAGE OF BY ALL FROM ALL
NAME OF RETIREMENT ELIGIBLE ADOPTING ADOPTING
INDEPENDENT TRUSTEE (MAXIMUM 10) COMPENSATION FUNDS 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
- --------------------------------------------------------------------------------

The following persons owned 5% or more of the outstanding Class A shares
of the Fund as of June 9, 1999: Dean Witter Reynolds Custodian for Dale E.
Fuller, IRA rollover dated 6/16/94, 5607 Lobello Drive, Dallas, TX 75229-6405
- -- 5.601%. The following owned 5% or more of the outstanding Class D shares of
the Fund on June 9, 1999: Hare & Co., c/o The Bank of New York, P.O. Box 11203,
New York, NY 10286-1203 -- 89.685%.

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.

15
<PAGE>

Pursuant to an Investment Management Agreement (the "Management
Agreement") with the Investment Manager, the Fund has retained the Investment
Manager to provide administrative services 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 by applying the following annual rates to the net assets of
the Fund determined as of the close of each business day: 0.75% to the portion
of daily net assets. The management fee is allocated among the Classes pro rata
based on the net assets of the Fund attributable to each Class. For the period
May 27, 1998 (commencement of operations) through February 28, 1999, the
Investment Manager accrued total compensation under the Management Agreement in
the amount of $2,103,972. This amount takes into account that the Investment
Manager had agreed to assume all 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 until six months from
the date of commencement of the Fund's operations, whichever occurred first.
This waiver and assumption is no longer in effect.

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

16
<PAGE>

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.

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 annual rate of 0.25% of the average daily net assets of Class A
and 1.0% of the average daily net assets of each of Class B and Class C.

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

17
<PAGE>

apart from payments made pursuant to the Plan. The Distributor has informed the
Fund that it and/or Dean Witter Reynolds received the proceeds of CDSCs and
FSCs, for the period May 27, 1998 (commencement of operations) through February
28, 1999, in approximate amounts as provided in the table below (the
Distributor did not retain any of these amounts).

<TABLE>
<CAPTION>
1998
----------
<S> <C> <C>
Class A .......... FSCs:(1) $ 94,934
CDSCs: $ 0
Class B .......... CDSCs: $841,536
Class C .......... CDSCs: $ 25,401
</TABLE>

- ----------
(1) FSCs apply to Class A only.

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" 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. For the period May 27, 1998
(commencement of operations) through February 28, 1999, Class A, Class B and
Class C shares of the Fund accrued payments under the Plan amounting to
$20,128, $2,549,049 and $167,088, respectively, which amounts are equal to
0.25%, 1.00% and 1.00% of the average daily net assets of Class A, Class B and
Class C, respectively, for the period.

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.

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<PAGE>

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, 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.

Each Class paid 100% of the amounts accrued under the Plan with respect to
that Class for the period May 27, 1998 (commencement of operations) through
February 28, 1999 to the Distributor. The Distributor and Dean Witter Reynolds
estimate that they have spent, pursuant to the Plan, $24,908,331

19
<PAGE>

on behalf of Class B since the inception of the Plan. It is estimated that this
amount was spent in approximately the following ways: (i) 8.26%
($2,058,639)--advertising and promotional expenses; (ii) 0.44%
($109,831)--printing of prospectuses for distribution to other than current
shareholders; and (iii) 91.30% ($22,739,861)--other expenses, including the
gross sales credit and the carrying charge, of which 3.43% ($780,733)
represents carrying charges, 39.98% ($9,091,079) represents commission credits
to Dean Witter Reynolds branch offices and other selected broker-dealers for
payments of commissions to Financial Advisors and other authorized financial
representatives, and 56.59% ($12,868,049) represents overhead and other branch
office distribution-related expenses. The amounts accrued by Class A and a
portion of the amounts accrued by Class C under the Plan were service fees
during the period May 27, 1998 through February 28, 1999. The remainder of the
amounts accrued by Class C were for expenses which relate to compensation of
sales personnel and associated overhead expenses.

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. The Distributor has advised the Fund that in
the case of Class B shares the excess distribution expenses, including the
carrying charge designed to approximate the opportunity costs incurred by Dean
Witter Reynolds which arise from it having advanced monies without having
received the amount of any sales charges imposed at the time of sale of the
Fund's Class B shares, totaled $21,286,639 as of December 31, 1998 (the end of
the calendar year), which was equal to 7.50% of the net assets of Class B on
such date. 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. The Distributor has advised the
Fund that unreimbursed expenses representing a gross sales commission credited
to Morgan Stanley Dean Witter Financial Advisors and other authorized financial
representatives at the time of sale totaled $175,875 in the case of Class C at
December 31, 1998 (end of the calendar year), which amount was equal to 0.81%
of the net assets of Class C on such date, and that there were no such expenses
that may be reimbursed in the subsequent year in the case of Class A on such
date. No interest or other financing charges will be incurred on any Class A or
Class C distribution expenses incurred by the Distributor under the Plan or on
any unreimbursed expenses due to the Distributor pursuant to the Plan.

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 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

20
<PAGE>

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
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

21
<PAGE>

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. On occasion, the Fund may also
purchase certain money market instruments directly from an issuer, in which
case no commissions or discounts are paid.

For the period May 27, 1998 (commencement of operations) through February
28, 1999, the Fund paid a total of $2,419,220 in brokerage commissions.

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.

During the period May 27, 1998 (commencement of operations) through
February 28, 1999, the Fund did not effect any principal transactions with Dean
Witter Reynolds.

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.

During the period May 27, 1998 (commencement of operations) through
February 28, 1999, the Fund paid a total of $288,085 in brokerage commissions
to Dean Witter Reynolds. During the period May 27, 1998 through February 28,
1999, the brokerage commissions paid to Dean Witter Reynolds represented
approximately 11.91% of the total brokerage commissions paid by the Fund during
the year and were paid on account of transactions having an aggregate dollar
value equal to approximately 14.41% of the aggregate dollar value of all
portfolio transactions of the Fund during the year for which commissions were
paid.

During the period May 27, 1998 (commencement of operations) through
February 28, 1999, the Fund paid a total of $116,705 in brokerage commissions
to Morgan Stanley & Co. During the period May 27, 1998 through February 28,
1999, the brokerage commissions paid to Morgan Stanley & Co. represented
approximately 4.82% of the total brokerage commissions paid by the Fund for
this period and were paid on account of transactions having an aggregate dollar
value equal to approximately 4.45% of the aggregate dollar value of all
portfolio transactions of the Fund during the year for which commissions were
paid.

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.

22
<PAGE>

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 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.

The Fund anticipates that certain of its transactions involving foreign
securities will be effected on foreign securities exchanges. Fixed commissions
on such transactions are generally higher than negotiated commissions on
domestic transactions. There is also generally less government supervision and
regulation of foreign securities exchanges and brokers than in the United
States.

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.

D. DIRECTED BROKERAGE

During the period May 27, 1998 (commencement of operations) through
February 28, 1999, the Fund paid $1,994,158 in brokerage commissions in
connection with transactions in the aggregate amount of $852,480,869 to brokers
because of research services provided.

E. REGULAR BROKER-DEALERS

During the period May 27, 1998 (commencement of operations) through
February 28, 1999, the Fund did not purchase securities issued by brokers or
dealers that were among the ten brokers or the ten dealers that executed
transactions for or with the Fund in the largest dollar amounts during the
year. At February 28, 1999, the Fund did not own any securities issued by any
of these issuers.

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

23
<PAGE>

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.

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.

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

24
<PAGE>

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 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.

Certain of the Fund's portfolio securities may be valued by an outside
pricing service approved by the Fund's Trustees. The pricing service may
utilize a matrix system incorporating security quality, maturity and coupon as
the evaluation model parameters, and/or research evaluations by its staff,
including review of broker-dealer market price quotations in determining what
it believes is the fair valuation of the portfolio securities valued by such
pricing service.

Listed options on debt securities are valued at the latest sale price on
the exchange on which they are listed unless no sales of such options have
taken place that day, in which case they will be valued at the mean between
their latest bid and asked prices. Unlisted options on debt securities and all
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.

25
<PAGE>

Generally, trading in foreign securities, as well as corporate bonds, U.S.
Government securities and money market instruments, is substantially completed
each day at various times prior to the close of the New York Stock Exchange.
The values of such securities used in computing the net asset value of the
Fund's shares are determined as of such times. Foreign currency exchange rates
are also generally determined prior to the close of the New York Stock
Exchange. Occasionally, events which may affect the values of such securities
and such exchange rates may occur between the times at which they are
determined and the close of the New York Stock Exchange and will therefore not
be reflected in the computation of the Fund's net asset value. If events that
may affect the value of such securities occur during such period, then these
securities may 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 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.

26
<PAGE>

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 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.

27
<PAGE>

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 shares are offered to the public on a continuous basis. 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 titled "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 involved 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 (which 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.

For periods of less than one year, the Fund quotes its total return on a
non-annualized basis. Accordingly, 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 distribution are reinvested.
The formula for computing aggregate total return involves a percentage obtained
by dividing the ending value (without reduction for any sale charge) by the
initial $1,000 investment and subtracting 1 from the result. Based on this
calculation, the total return for Class A for the period May 27, 1998
(commencement of operations) through February 28, 1999 was -21.13%. The total
return of Class B for the period May 27, 1998 through February 28, 1999 was
- -21.59%. The total return of Class C for the period May 27, 1998 through
February 28, 1999 was -21.61%. The total return of Class D for the period May
27, 1998 through February 28, 1999 was -21.01%.

The Fund may also advertise the growth of hypothetical investment 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 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

28
<PAGE>

$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. Investments of $10,000, $50,000 and $100,000 in each Class at inception of
the Class would have declined to the following amounts at February 28, 1999:

<TABLE>
<CAPTION>
INVESTMENT AT INCEPTION OF:
INCEPTION ---------------------------------
CLASS DATE: $10,000 $50,000 $100,000
- ----------------- ---------- --------- --------- ---------
<S> <C> <C> <C> <C>
Class A ......... 5/27/98 $7,473 $37,858 $76,504
Class B ......... 5/27/98 7,841 39,205 78,410
Class C ......... 5/27/98 7,839 39,195 78,390
Class D ......... 5/27/98 7,899 39,495 78,990
</TABLE>

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

XII. FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
EXPERTS. The financial statements of the Fund for the period May 27, 1998
(commencement of operations) through February 28, 1999 are included herein 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.

29
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
PORTFOLIO OF INVESTMENTS February 28, 1999

<TABLE>
<CAPTION>
NUMBER OF
SHARES VALUE
- ----------------- ------------------
<S> <C> <C>
COMMON STOCKS (98.8%)
Aerospace (3.1%)
100,000 Goodrich (B.F.) Co. (The) ................ $ 3,412,500
165,000 Lockheed Martin Corp. .................... 6,218,437
------------
9,630,937
------------
Auto Parts: O.E.M. (1.9%)
137,300 Borg-Warner Automotive, Inc. ............. 5,981,131
------------
Casino/Gambling (3.5%)
195,000 International Game Technology ............ 3,705,000
365,000 Mirage Resorts, Inc.* .................... 7,117,500
------------
10,822,500
------------
Computer/Video Chains (1.4%)
425,000 CompUSA, Inc.* ........................... 4,462,500
------------
Construction/Agricultural
Equipment/Trucks (3.3%)
749,000 AGCO Corp. ............................... 4,915,312
276,000 Case Corp. ............................... 5,382,000
------------
10,297,312
------------
Containers/Packaging (1.9%)
250,000 Owens-Illinois, Inc.* .................... 5,984,375
------------
Contract Drilling (3.6%)
280,000 Diamond Offshore Drilling, Inc. .......... 5,792,500
616,000 ENSCO International, Inc. ................ 5,467,000
------------
11,259,500
------------
Discount Chains (2.2%)
270,000 Consolidated Stores Corp.* ............... 6,800,625
------------
E.D.P. Services (3.5%)
185,000 Cambridge Technology Partners,
Inc.* .................................... 4,648,125
250,000 CIBER, Inc.* ............................. 6,281,250
------------
10,929,375
------------
Electronic Components (0.9%)
85,000 Hadco Corp.* ............................. 2,698,750
------------
Finance -- Consumer (2.1%)
160,000 Household International, Inc. ............ 6,500,000
------------
Finance Companies (1.8%)
145,000 Countrywide Credit Industries,
Inc. ..................................... 5,491,875
------------
Food Distributors (2.1%)
271,800 Richfood Holdings, Inc. .................. 6,455,250
------------
Hospital/Nursing Management (2.3%)
255,000 HCR Manor Care, Inc.* .................... 5,705,625
1,192,900 Sun Healthcare Group, Inc.* .............. 1,640,237
------------
7,345,862
------------

</TABLE>
<TABLE>
<CAPTION>
NUMBER OF
SHARES VALUE
- ----------------- ------------------
<S> <C> <C>
Hotels/Resorts (1.9%)
590,000 Prime Hospitality Corp.* ................. $ 6,047,500
------------
Life Insurance (2.1%)
215,000 Conseco, Inc. ............................ 6,436,562
------------
Major Banks (2.0%)
140,000 Republic New York Corp. .................. 6,343,750
------------
Major Chemicals (4.0%)
219,000 Hercules, Inc. ........................... 6,063,562
330,000 IMC Global, Inc. ......................... 6,579,375
------------
12,642,937
------------
Managed Health Care (6.0%)
80,000 Aetna Inc. ............................... 5,925,000
414,000 First Health Group Corp.* ................ 6,624,000
362,000 Humana, Inc.* ............................ 6,335,000
------------
18,884,000
------------
Medical/Nursing Services (2.4%)
220,000 HEALTHSOUTH Corp.* ....................... 2,557,500
900,000 PhyCor, Inc.* ............................ 4,837,500
------------
7,395,000
------------
Metals Fabrications (1.9%)
330,000 Timken Co. (The) ......................... 5,836,875
------------
Multi-Sector Companies (1.4%)
150,000 Tenneco, Inc. ............................ 4,490,625
------------
Oil Refining/Marketing (1.9%)
295,000 USX-Marathon Group ....................... 6,102,812
------------
Other Specialty Stores (3.6%)
557,300 Friedman's, Inc. (Class A) ............... 5,816,819
410,000 General Nutrition Companies,
Inc.* .................................... 5,458,125
------------
11,274,944
------------
Packaged Foods (4.0%)
200,000 Dole Food Co., Inc. ...................... 6,300,000
260,700 Interstate Bakeries Corp. ................ 6,256,800
------------
12,556,800
------------
Photographic Products (1.0%)
125,000 Polaroid Corp. ........................... 2,984,375
------------
Real Estate Investment Trust (6.2%)
680,000 Equity Inns, Inc. ........................ 6,417,500
275,000 FelCor Lodging Trust Inc. ................ 6,496,875
169,700 Kimco Realty Corp. ....................... 6,437,994
------------
19,352,369
------------
Recreational Products/Toys (3.8%)
638,300 K2 Inc. .................................. 5,625,019
241,500 Mattel, Inc. ............................. 6,369,563
------------
11,994,582
------------
</TABLE>
SEE NOTES TO FINANCIAL STATEMENTS

30
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
PORTFOLIO OF INVESTMENTS February 28, 1999, continued

<TABLE>
<CAPTION>
NUMBER OF
SHARES VALUE
- ------------ ---------------
<S> <C> <C>
Rental/Leasing Companies (3.9%)
500,000 Budget Group, Inc. (Class A)* ........... $ 5,843,750
240,000 Ryder System, Inc. ...................... 6,480,000
------------
12,323,750
------------
Retail -- Specialty (2.1%)
450,000 Rexall Sundown, Inc.* ................... 6,440,625
------------
Savings & Loan Associations (3.9%)
270,000 Dime Bancorp, Inc. ...................... 6,682,500
140,000 Washington Mutual, Inc. ................. 5,600,000
------------
12,282,500
------------
Specialty Chemicals (1.9%)
325,000 Crompton & Knowles Corp. ................ 6,012,500
------------
Specialty Insurers (2.1%)
106,000 MBIA, Inc. .............................. 6,525,625
------------
Specialty Steels (2.0%)
141,900 Nucor Corp. ............................. 6,323,419
------------
Steel/Iron Ore (2.0%)
245,000 USX-U.S. Steel Group .................... 6,201,563
------------
Textiles (3.1%)
322,100 Guilford Mills, Inc. .................... 3,985,988
467,800 Unifi, Inc. ............................. 5,642,838
------------
9,628,826
------------
Tobacco (2.0%)
235,000 RJR Nabisco Holdings Corp. .............. 6,418,438
------------

TOTAL COMMON STOCKS
(Identified Cost $368,413,130) .......... 309,160,369
------------
</TABLE>

<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT IN
THOUSANDS VALUE
- ------------- ---------------
<S> <C> <C>
SHORT-TERM INVESTMENT (0.9%)
REPURCHASE AGREEMENT
$ 2,925 The Bank of New York 4.75%
due 03/01/99 (dated 02/26/99;
proceeds $2,926,209) (a)
(Amortized Cost $2,925,051) .......... $ 2,925,051
------------
</TABLE>

<TABLE>
<S> <C> <C>
TOTAL INVESTMENTS
(Identified Cost $371,338,181) (b) 99.7% 312,085,420
OTHER ASSETS IN EXCESS OF
LIABILITIES ...................... 0.3 790,247
----- -----------
NET ASSETS ....................... 100.0% $312,875,667
===== ============
</TABLE>

- -------------------------------
* Non-income producing security.

(a) Collateralized by $2,384,067 U.S. Treasury Bond 7.875% due
02/15/21 valued at $2,983,552.

(b) The aggregate cost for federal income tax purposes approximates
identified cost. The aggregate gross unrealized appreciation is
$8,201,964 and the aggregate gross unrealized depreciation is
$67,454,725, resulting in net unrealized depreciation of
$59,252,761.

SEE NOTES TO FINANCIAL STATEMENTS

31
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
FINANCIAL STATEMENTS

STATEMENT OF ASSETS AND LIABILITIES
February 28, 1999

<TABLE>
<S> <C>
ASSETS:
Investments in securities, at value
(identified cost $371,338,181) .................................. $ 312,085,420
Receivable for:
Investments sold ............................................... 10,282,469
Dividends ...................................................... 297,840
Shares of beneficial interest sold ............................. 146,331
Deferred organizational expenses .................................. 61,976
Prepaid expenses and other assets ................................. 109,393
-------------
TOTAL ASSETS ................................................... 322,983,429
-------------
LIABILITIES:
Payable for:
Investments purchased .......................................... 8,611,524
Shares of beneficial interest repurchased ...................... 845,422
Plan of distribution fee ....................................... 263,251
Investment management fee ...................................... 202,972
Accrued expenses and other payables ............................... 184,593
-------------
TOTAL LIABILITIES .............................................. 10,107,762
-------------
NET ASSETS ..................................................... $ 312,875,667
=============
COMPOSITION OF NET ASSETS:
Paid-in-capital ................................................... $ 406,684,779
Net unrealized depreciation ....................................... (59,252,761)
Net realized loss ................................................. (34,556,351)
-------------
NET ASSETS ..................................................... $ 312,875,667
=============
CLASS A SHARES:
Net Assets ........................................................ $ 9,536,116
Shares Outstanding (unlimited authorized, $.01 par value) ......... 1,218,589
NET ASSET VALUE PER SHARE ...................................... $ 7.83
=============
MAXIMUM OFFERING PRICE PER SHARE,
(net asset value plus 5.54% of net asset value) .............. $ 8.26
=============
CLASS B SHARES:
Net Assets ........................................................ $ 283,779,367
Shares Outstanding (unlimited authorized, $.01 par value) ......... 36,299,590
NET ASSET VALUE PER SHARE ...................................... $ 7.82
=============
CLASS C SHARES:
Net Assets ........................................................ $ 18,074,791
Shares Outstanding (unlimited authorized, $.01 par value) ......... 2,311,718
NET ASSET VALUE PER SHARE ...................................... $ 7.82
=============
CLASS D SHARES:
Net Assets ........................................................ $ 1,485,393
Shares Outstanding (unlimited authorized, $.01 par value) ......... 189,690
NET ASSET VALUE PER SHARE ...................................... $ 7.83
=============
</TABLE>
SEE NOTES TO FINANCIAL STATEMENTS

32
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
FINANCIAL STATEMENTS, continued

STATEMENT OF OPERATIONS
For the period May 27, 1998* through February 28, 1999

<TABLE>
<S> <C>
NET INVESTMENT INCOME:
INCOME
Dividends ......................................... $ 5,402,422
Interest .......................................... 864,060
-------------
TOTAL INCOME ................................... 6,266,482
-------------
EXPENSES
Plan of distribution fee (Class A shares) ......... 20,128
Plan of distribution fee (Class B shares) ......... 2,549,049
Plan of distribution fee (Class C shares) ......... 167,088
Investment management fee ......................... 2,103,972
Transfer agent fees and expenses .................. 481,572
Registration fees ................................. 224,409
Professional fees ................................. 65,024
Custodian fees .................................... 33,677
Shareholder reports and notices ................... 22,566
Organizational expenses ........................... 10,246
Trustees' fees and expenses ....................... 7,378
Other ............................................. 8,685
-------------
TOTAL EXPENSES ................................. 5,693,794
-------------
NET INVESTMENT INCOME .......................... 572,688
-------------
NET REALIZED AND UNREALIZED LOSS:
Net realized loss ................................. (34,556,351)
Net unrealized depreciation ....................... (59,252,761)
-------------
NET LOSS ....................................... (93,809,112)
-------------
NET DECREASE ...................................... $ (93,236,424)
=============
</TABLE>

- ---------------------
* Commencement of operations.

SEE NOTES TO FINANCIAL STATEMENTS
33
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
FINANCIAL STATEMENTS, continued

STATEMENT OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
FOR THE PERIOD
MAY 27, 1998*
THROUGH
FEBRUARY 28, 1999
------------------
<S> <C>
INCREASE (DECREASE) IN NET ASSETS:
OPERATIONS:
Net investment income ................................................ $ 572,688
Net realized loss .................................................... (34,556,351)
Net unrealized depreciation .......................................... (59,252,761)
-------------
NET DECREASE ...................................................... (93,236,424)
-------------
DIVIDENDS TO SHAREHOLDERS FROM NET INVESTMENT INCOME:
Class A shares ....................................................... (78,008)
Class B shares ....................................................... (866,259)
Class C shares ....................................................... (52,602)
Class D shares ....................................................... (3,143)
-------------
TOTAL DIVIDENDS ................................................... (1,000,012)
-------------
Net increase from transactions in shares of beneficial interest ...... 407,012,103
-------------
NET INCREASE ...................................................... 312,775,667
NET ASSETS:
Beginning of period .................................................. 100,000
-------------
END OF PERIOD ..................................................... $ 312,875,667
=============
</TABLE>

- ---------------------
* Commencement of operations.

SEE NOTES TO FINANCIAL STATEMENTS

34
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
NOTES TO FINANCIAL STATEMENTS February 28, 1999

1. ORGANIZATION AND ACCOUNTING POLICIES

Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities (the "Fund") is
registered under the Investment Company Act of 1940, as amended (the "Act"), as
a diversified, open-end management investment company. The Fund's investment
objective is to seek total return. The Fund seeks to achieve its objective by
investing primarily in domestic and foreign equity securities of companies
whose market capitalization falls within the capitalization range of the
companies comprising the Standard and Poor's Midcap 400 Index and that
currently pay dividends and that have the potential for increasing dividends.
The Fund was organized as a Massachusetts business trust on December 23, 1997
and had no operations other than those relating to organizational matters and
the issuance of 2,500 shares of beneficial interest by each class for $25,000
of each class to Morgan Stanley Dean Witter Advisors Inc. (the "Investment
Manager") to effect the Fund's initial capitalization. The Fund commenced
operations on May 27, 1998.

The Fund offers Class A shares, Class B shares, Class C shares and Class D
shares. The four classes are substantially the same except that most Class A
shares are subject to a sales charge imposed at the time of purchase and some
Class A shares, and most Class B shares and Class C shares are subject to a
contingent deferred sales charge imposed on shares redeemed within one year,
six years and one year, respectively. Class D shares are not subject to a sales
charge. Additionally, Class A shares, Class B shares and Class C shares incur
distribution expenses.

The preparation of financial statements in accordance with generally accepted
accounting principles requires management to make estimates and assumptions
that affect the reported amounts and disclosures. Actual results could differ
from those estimates.

The following is a summary of significant accounting policies:

A. VALUATION OF INVESTMENTS -- (1) an equity security listed or traded on the
New York, American or other domestic or foreign 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 securities are traded on more than one exchange, the securities
are valued on the exchange designated as the primary market pursuant to
procedures adopted by the Trustees); (2) all other portfolio securities for
which over-the-counter market quotations are readily available are valued at
the latest available bid price prior to the time of valuation; (3) 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 Trustees (valuation of debt securities for which
market quotations are not readily available may be based

35
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
NOTES TO FINANCIAL STATEMENTS February 28, 1999, continued

upon current market prices of securities which are comparable in coupon, rating
and maturity or an appropriate matrix utilizing similar factors); and (4)
short-term debt securities having a maturity date of more than sixty days at
time of purchase are valued on a mark-to-market basis until sixty days prior to
maturity and thereafter at amortized cost based on their value on the 61st day.
Short-term debt securities having a maturity date of sixty days or less at the
time of purchase are valued at amortized cost.

B. ACCOUNTING FOR INVESTMENTS -- Security transactions are accounted for on the
trade date (date the order to buy or sell is executed). Realized gains and
losses on security transactions are determined by the identified cost method.
Dividend income and other distributions are recorded on the ex-dividend date.
Discounts are accreted over the life of the respective securities. Interest
income is accrued daily.

C. MULTIPLE CLASS ALLOCATIONS -- Investment income, expenses (other than
distribution fees), and realized and unrealized gains and losses are allocated
to each class of shares based upon the relative net asset value on the date
such items are recognized. Distribution fees are charged directly to the
respective class.

D. FEDERAL INCOME TAX STATUS -- It is the Fund's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated investment
companies and to distribute all of its taxable income to its shareholders.
Accordingly, no federal income tax provision is required.

E. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- The Fund records dividends
and distributions to its shareholders on the ex-dividend date. The amount of
dividends and distributions from net investment income and net realized capital
gains are determined in accordance with federal income tax regulations which
may differ from generally accepted accounting principles. These "book/tax"
differences are either considered temporary or permanent in nature. To the
extent these differences are permanent in nature, such amounts are reclassified
within the capital accounts based on their federal tax-basis treatment;
temporary differences do not require reclassification. Dividends and
distributions which exceed net investment income and net realized capital gains
for financial reporting purposes but not for tax purposes are reported as
dividends in excess of net investment income or distributions in excess of net
realized capital gains. To the extent they exceed net investment income and net
realized capital gains for tax purposes, they are reported as distributions of
paid-in-capital.

F. ORGANIZATIONAL EXPENSES -- The Investment Manager incurred the
organizational expenses of the Fund in the amount of approximately $72,000 and
was reimbursed for the full amount thereof. Such expenses have been deferred
and are being amortized on the straight-line method over a period not to exceed
five years from the commencement of operations.

36
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
NOTES TO FINANCIAL STATEMENTS February 28, 1999, continued

2. INVESTMENT MANAGEMENT AGREEMENT

Pursuant to an Investment Management Agreement, the Fund pays the Investment
Manager a management fee, accrued daily and payable monthly, by applying the
annual rate of 0.75% to the net assets of the Fund determined as of the close
of each business day.

Under the terms of the 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, office space, facilities, equipment,
clerical, bookkeeping and certain legal services and 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 services,
heat, light, power and other utilities provided to the Fund.

3. PLAN OF DISTRIBUTION

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 (1) 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, the 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; (2) printing and
distribution of prospectuses and reports used in connection with the offering
of these shares to other than current shareholders; and (3) 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

37
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
NOTES TO FINANCIAL STATEMENTS February 28, 1999, continued

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. The Distributor has advised the Fund that such excess amounts,
including carrying charges, totaled $21,286,639 at February 28, 1999.

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. For the period ended February 28, 1999, the distribution fee was
accrued for Class A shares and Class C shares at the annual rate of 0.25% and
1.0%, respectively.

The Distributor has informed the Fund that for the period ended February 28,
1999, it received contingent deferred sales charges from certain redemptions of
the Fund's Class B shares and Class C shares of $841,536 and $25,401,
respectively and received $94,934 in front-end sales charges from sales of the
Fund's Class A shares. The respective shareholders pay such charges which are
not an expense of the Fund.

4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES

The cost of purchases and proceeds from sales of portfolio securities,
excluding short-term investments, for the period ended February 28, 1999
aggregated $831,615,904 and $428,646,423, respectively.

For the period ended February 28, 1999, the Fund incurred $288,085 in brokerage
commissions with DWR for portfolio transactions executed on behalf of the Fund.
At February 28, 1999, the Fund's receivable for investments sold and payable
for investments purchased included unsettled trades with DWR of $3,454,617 and
$757,500, respectively.

For the period ended February 28, 1999, the Fund incurred $116,705 in brokerage
commissions with Morgan Stanley & Co., Inc., an affiliate of the Investment
Manager and Distributor, for portfolio transactions executed on behalf of the
Fund.

Morgan Stanley Dean Witter Trust FSB, and affiliate of the Investment Manager
and Distributor, is the Fund's transfer agent. At February 28, 1999, the Fund
had transfer agent fees and expenses payable of approximately $3,600.

38
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
NOTES TO FINANCIAL STATEMENTS February 28, 1999, continued

5. SHARES OF BENEFICIAL INTEREST

Transactions in shares of beneficial interest were as follows:

<TABLE>
<CAPTION>
FOR THE PERIOD
MAY 27, 1998*
THROUGH
FEBRUARY 28, 1999
-------------------------------
SHARES AMOUNT
-------------- ----------------
<S> <C> <C>
CLASS A SHARES
Sold .............................. 1,553,857 $ 14,971,777
Reinvestment of dividends ......... 8,612 71,827
Redeemed .......................... (346,380) (2,873,074)
--------- -------------
Net increase - Class A ............ 1,216,089 12,170,530
--------- -------------
CLASS B SHARES
Sold .............................. 46,157,509 451,064,311
Reinvestment of dividends ......... 97,339 811,803
Redeemed .......................... (9,957,758) (82,556,557)
---------- -------------
Net increase - Class B ............ 36,297,090 369,319,557
---------- -------------
CLASS C SHARES
Sold .............................. 3,086,861 30,246,228
Reinvestment of dividends ......... 5,944 49,573
Redeemed .......................... (783,587) (6,546,367)
---------- -------------
Net increase - Class C ............ 2,309,218 23,749,434
---------- -------------
CLASS D SHARES
Sold .............................. 323,389 2,934,148
Reinvestment of dividends ......... 159 1,329
Redeemed .......................... (136,358) (1,162,895)
---------- -------------
Net increase - Class D ............ 187,190 1,772,582
---------- -------------
Net increase in Fund .............. 40,009,587 $ 407,012,103
========== =============
</TABLE>

- ---------------
* Commencement of operations.

6. FEDERAL INCOME TAX STATUS

At February 28, 1999, the Fund had a net capital loss carryover of
approximately $26,212,000 which will be available through February 28, 2007 to
offset future capital gains to the extent provided by regulations.

As of February 28, 1999, the Fund had temporary book/tax differences
attributable to capital loss deferrals on wash sales and permanent book/tax
differences primarily attributable to nondeductible expenses. To reflect
reclassifications arising from the permanent differences, paid-in-capital was
charged and net investment income was credited $427,324.

39
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
FINANCIAL HIGHLIGHTS

Selected ratios and per share data for a share of beneficial interest
outstanding throughout the period:

<TABLE>
<CAPTION>
FOR THE PERIOD MAY 27, 1998* THROUGH FEBRUARY 28, 1999**
---------------------------------------------------------------
CLASS A CLASS B CLASS C CLASS D
SHARES SHARES SHARES SHARES
------------- --------------- ------------- -------------
<S> <C> <C> <C> <C>
SELECTED PER SHARE DATA:
Net asset value, beginning of period .............. $ 10.00 $ 10.00 $ 10.00 $ 10.00
------- ---------- --------- -------
Income (loss) from investment operations:
Net investment income ............................ 0.06 0.01 0.01 0.06
Net realized and unrealized loss ................. (2.17) (2.17) (2.17) (2.16)
------- ---------- --------- -------
Total loss from investment operations ............. (2.11) (2.16) (2.16) (2.10)
------- ---------- --------- -------
Less dividends from net investment income ......... (0.06) (0.02) (0.02) (0.07)
------- ---------- --------- -------
Net asset value, end of period .................... $ 7.83 $ 7.82 $7.82 $7.83
======= ========== ========= =======
TOTAL RETURN+(1) .................................. (21.13)% (21.59)% (21.61)% (21.01)%
RATIOS TO AVERAGE NET ASSETS (2) (3):
Expenses .......................................... 1.30% 2.05% 2.05% 1.05%
Net investment income ............................. 0.93% 0.18% 0.18% 1.18%
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands ........... $9,536 $283,779 $18,075 $1,485
Portfolio turnover rate (1) ....................... 124% 124% 124% 124%
</TABLE>

- -------------
* Commencement of operations.
** The per share amounts were computed using an average number of shares
outstanding during the period.
+ Does not reflect the deduction of sales charge. Calculated based on the
net asset value as of the last business day of the period.
(1) Not annualized.
(2) Annualized.
(3) Reflects overall Fund ratios for investment income and non-class specific
expenses.

SEE NOTES TO FINANCIAL STATEMENTS

40
<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES
REPORT OF INDEPENDENT ACCOUNTANTS

TO THE SHAREHOLDERS AND TRUSTEES
OF MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES

In our opinion, the accompanying statement of assets and liabilities, including
the portfolio of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of Morgan Stanley Dean Witter Mid-Cap
Dividend Growth Securities (the "Fund") at February 28, 1999, and the results
of its operations, the changes in its net assets and the financial highlights
for the period May 27, 1998 (commencement of operations) through February 28,
1999, in conformity with generally accepted accounting principles. These
financial statements and financial highlights (hereafter referred to as
"financial statements") are the responsibility of the Fund's management; our
responsibility is to express an opinion on these financial statements based on
our audit. We conducted our audit of these financial statements in accordance
with generally accepted auditing standards which require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audit, which included confirmation of
securities at February 28, 1999 by correspondence with the custodian and
brokers, provides a reasonable basis for the opinion expressed above.

PricewaterhouseCoopers LLP
1177 Avenue of the Americas
New York, New York 10036
April 14, 1999

1999 FEDERAL TAX NOTICE (unaudited)

For the period ended February 28, 1999, 100% of the income dividends
qualified for dividends received deduction available to corporations.

<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES

PART C OTHER INFORMATION

Item 23. Exhibits
- -------- ----------------------------------------------------------------------

1. Declaration of Trust of the Registrant, dated December 23, 1997, is
incorporated by reference to Exhibit 1 of the Initial Registration
Statement on Form N-1A, filed on December 23, 1997.

2. Amended and Restated By-Laws of the Registrant, dated May 1, 1999, is
incorporated by reference to Exhibit 2 of Post-Effective Amendment No.
1 to the Registration Statement on Form N-1A, filed on April 28, 1999.

3. Not Applicable.

4. Amended and Restated Investment Management Agreement is incorporated by
reference to Exhibit 4 of Post-Effective Amendment No. 1 to the
Registration Statement on Form N-1A, filed on April 28, 1999.

5(a). Amended and Restated Distribution Agreement is incorporated by
reference to Exhibit 5(a) of Post-Effective Amendment No. 1 to the
Registration Statement on Form N-1A, filed on April 28, 1999.

5(b). Selected Dealers Agreement between Morgan Stanley Dean Witter
Distributors Inc. and Dean Witter Reynolds Inc. is incorporated by
reference to Exhibit 6(b) of Pre-Effective No. 1 to the Registration
Statement on Form N1-A, filed on February 27, 1998.

5(c). Omnibus Selected Dealer Agreement between Morgan Stanley Dean Witter
Distributors Inc. and National Financial Services Corporation is
incorporated by reference to Exhibit 5(b) of Post-Effective No. 1 to
the Registration Statement on Form N-1A, filed on April 28, 1999.

6. Not Applicable.

7. Custody Agreement between The Bank of New York and the Registrant is
incorporated by reference to Exhibit 8(a) of Pre-Effective Amendment
No. 1 to the Registration Statement on Form N-1A, filed on February 27,
1998.

8(a). Amended and Restated Transfer Agency and Service Agreement is
incorporated by reference to Exhibit 8(a) of Post-Effective Amendment
No. 1 to the Registration Statement on Form N-1A, filed on April 28,
1999.

8(b). Amended and Restated Services Agreement is incorporated by reference to
Exhibit 8(b) of Post-Effective Amendment No. 1 to the Registration
Statement on Form N-1A, filed on April 28, 1999.

9(a). Opinion of Registrant's Counsel, dated February 26, 1998, is
incorporated by reference to Exhibit 10(a) of Pre-Effective Amendment
No. 1 to the Registration Statement on Form N-1A, filed on February 27,
1998.

1
<PAGE>

9(b). Opinion of Lane Altman & Owens LLP, Massachusetts Counsel, dated
February 25, 1998, is incorporated by reference to Exhibit 10(b) of
Pre-Effective Amendment No. 1 to the Registration Statement on Form
N-1A, filed on February 27, 1998.

10. Consent of Independent Accountants.

11. Not Applicable.

12. Not Applicable.

13. Plan of Distribution pursuant to Rule 12b-1 is incorporated by
reference to Exhibit 15 of Pre-Effective Amendment No. 1 to the
Registration Statement on Form N-1A, filed on February 27, 1998.

14. Amended and Restated Multi-Class Plan pursuant to Rule 18f-3 is
incorporated by reference to Exhibit 15 of Post-Effective Amendment No.
1 to the Registration Statement on Form N-1A, filed April 28, 1999.

Other Power of Attorney of Trustees is incorporated by reference to Exhibit
(Other) of Pre-Effective Amendment No. 1 to the Registration Statement
on Form N-1A, filed on February 27, 1998.

Item 24. Persons Controlled by or Under Common Control with the Fund.

None

Item 25. Indemnification.

Pursuant to Section 5.3 of the Registrant's Declaration of Trust and
under Section 4.8 of the Registrant's By-Laws, the indemnification of the
Registrant's trustees, officers, employees and agents is permitted if it is
determined that they acted under the belief that their actions were in or not
opposed to the best interest of the Registrant, and, with respect to any
criminal proceeding, they had reasonable cause to believe their conduct was not
unlawful. In addition, indemnification is permitted only if it is determined
that the actions in question did not render them liable by reason of willful
misfeasance, bad faith or gross negligence in the performance of their duties or
by reason of reckless disregard of their obligations and duties to the
Registrant. Trustees, officers, employees and agents will be indemnified for the
expense of litigation if it is determined that they are entitled to
indemnification against any liability established in such litigation. The
Registrant may also advance money for these expenses provided that they give
their undertakings to repay the Registrant unless their conduct is later
determined to permit indemnification.

Pursuant to Section 5.2 of the Registrant's Declaration of Trust and
paragraph 8 of the Registrant's Investment Management Agreement, neither the
Investment Manager nor any trustee, officer, employee or agent of the Registrant
shall be liable for any action or failure to act, except in the case of bad
faith, willful misfeasance, gross negligence or reckless disregard of duties to
the Registrant.

Insofar as indemnification for liabilities arising under the Securities
Act of 1933 (the "Act") may be permitted to trustees, officers and controlling
persons of the Registrant pursuant to the foregoing provisions or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than

2
<PAGE>

the payment by the Registrant of expenses incurred or paid by a trustee,
officer, or controlling person of the Registrant in connection with the
successful defense of any action, suit or proceeding) is asserted against the
Registrant by such trustee, officer or controlling person in connection with the
shares being registered, the Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Act, and will be governed by the final
adjudication of such issue.

The Registrant hereby undertakes that it will apply the indemnification
provision of its by-laws in a manner consistent with Release 11330 of the
Securities and Exchange Commission under the Investment Company Act of 1940, so
long as the interpretation of Sections 17(h) and 17(i) of such Act remains in
effect.

Registrant, in conjunction with the Investment Manager, Registrant's
Trustees, and other registered investment management companies managed by the
Investment Manager, maintains insurance on behalf of any person who is or was a
Trustee, officer, employee, or agent of Registrant, or who is or was serving at
the request of Registrant as a trustee, director, officer, employee or agent of
another trust or corporation, against any liability asserted against him and
incurred by him or arising out of his position. However, in no event will
Registrant maintain insurance to indemnify any such person for any act for which
Registrant itself is not permitted to indemnify him.

Item 26. Business and Other Connections of Investment Advisor

See "The Fund and Its Management" in the Prospectus regarding the
business of the investment advisor. The following information is given regarding
officers of Morgan Stanley Dean Witter Advisors Inc. ("MSDW Advisors"). MSDW
Advisors is a wholly-owned subsidiary of Morgan Stanley Dean Witter & Co.

The term "Morgan Stanley Dean Witter Funds" refers to the following
registered investment companies:

Closed-End Investment Companies
- -------------------------------
(1) Morgan Stanley Dean Witter California Insured Municipal Income Trust
(2) Morgan Stanley Dean Witter California Quality Municipal Securities
(3) Morgan Stanley Dean Witter Government Income Trust
(4) Morgan Stanley Dean Witter High Income Advantage Trust
(5) Morgan Stanley Dean Witter High Income Advantage Trust II
(6) Morgan Stanley Dean Witter High Income Advantage Trust III
(7) Morgan Stanley Dean Witter Income Securities Inc.
(8) Morgan Stanley Dean Witter Insured California Municipal Securities
(9) Morgan Stanley Dean Witter Insured Municipal Bond Trust
(10) Morgan Stanley Dean Witter Insured Municipal Income Trust
(11) Morgan Stanley Dean Witter Insured Municipal Securities
(12) Morgan Stanley Dean Witter Insured Municipal Trust
(13) Morgan Stanley Dean Witter Municipal Income Opportunities Trust
(14) Morgan Stanley Dean Witter Municipal Income Opportunities Trust II
(15) Morgan Stanley Dean Witter Municipal Income Opportunities Trust III
(16) Morgan Stanley Dean Witter Municipal Income Trust
(17) Morgan Stanley Dean Witter Municipal Income Trust II
(18) Morgan Stanley Dean Witter Municipal Income Trust III
(19) Morgan Stanley Dean Witter Municipal Premium Income Trust

3
<PAGE>

(20) Morgan Stanley Dean Witter New York Quality Municipal Securities
(21) Morgan Stanley Dean Witter Prime Income Trust
(22) Morgan Stanley Dean Witter Quality Municipal Income Trust
(23) Morgan Stanley Dean Witter Quality Municipal Investment Trust
(24) Morgan Stanley Dean Witter Quality Municipal Securities

Open-end Investment Companies
- -----------------------------
(1) Active Assets California Tax-Free Trust
(2) Active Assets Government Securities Trust
(3) Active Assets Money Trust
(4) Active Assets Tax-Free Trust
(5) Morgan Stanley Dean Witter Aggressive Equity Fund
(6) Morgan Stanley Dean Witter American Opportunities Fund
(7) Morgan Stanley Dean Witter Balanced Growth Fund
(8) Morgan Stanley Dean Witter Balanced Income Fund
(9) Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
(10) Morgan Stanley Dean Witter California Tax-Free Income Fund
(11) Morgan Stanley Dean Witter Capital Growth Securities
(12) Morgan Stanley Dean Witter Competitive Edge Fund, "Best Ideas Portfolio"
(13) Morgan Stanley Dean Witter Convertible Securities Trust
(14) Morgan Stanley Dean Witter Developing Growth Securities Trust
(15) Morgan Stanley Dean Witter Diversified Income Trust
(16) Morgan Stanley Dean Witter Dividend Growth Securities Inc.
(17) Morgan Stanley Dean Witter Equity Fund
(18) Morgan Stanley Dean Witter European Growth Fund Inc.
(19) Morgan Stanley Dean Witter Federal Securities Trust
(20) Morgan Stanley Dean Witter Financial Services Trust
(21) Morgan Stanley Dean Witter Fund of Funds
(22) Morgan Stanley Dean Witter Global Dividend Growth Securities
(23) Morgan Stanley Dean Witter Global Utilities Fund
(24) Morgan Stanley Dean Witter Growth Fund
(25) Morgan Stanley Dean Witter Hawaii Municipal Trust
(26) Morgan Stanley Dean Witter Health Sciences Trust
(27) Morgan Stanley Dean Witter High Yield Securities Inc.
(28) Morgan Stanley Dean Witter Income Builder Fund
(29) Morgan Stanley Dean Witter Information Fund
(30) Morgan Stanley Dean Witter Intermediate Income Securities
(31) Morgan Stanley Dean Witter International Fund
(32) Morgan Stanley Dean Witter International SmallCap Fund
(33) Morgan Stanley Dean Witter Japan Fund
(34) Morgan Stanley Dean Witter Latin American Growth Fund
(35) Morgan Stanley Dean Witter Limited Term Municipal Trust
(36) Morgan Stanley Dean Witter Liquid Asset Fund Inc.
(37) Morgan Stanley Dean Witter Market Leader Trust
(38) Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities
(39) Morgan Stanley Dean Witter Mid-Cap Equity Trust
(40) Morgan Stanley Dean Witter Multi-State Municipal Series Trust
(41) Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
(42) Morgan Stanley Dean Witter New York Municipal Money Market Trust
(43) Morgan Stanley Dean Witter New York Tax-Free Income Fund
(44) Morgan Stanley Dean Witter North American Government Income Trust

4
<PAGE>

(45) Morgan Stanley Dean Witter Pacific Growth Fund Inc.
(46) Morgan Stanley Dean Witter Precious Metals and Minerals Trust
(47) Morgan Stanley Dean Witter Real Estate Fund
(48) Morgan Stanley Dean Witter S&P 500 Index Fund
(49) Morgan Stanley Dean Witter S&P 500 Select Fund
(50) Morgan Stanley Dean Witter Select Dimensions Investment Series
(51) Morgan Stanley Dean Witter Select Municipal Reinvestment Fund
(52) Morgan Stanley Dean Witter Short-Term Bond Fund
(53) Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
(54) Morgan Stanley Dean Witter Small Cap Growth Fund
(55) Morgan Stanley Dean Witter Special Value Fund
(56) Morgan Stanley Dean Witter Strategist Fund
(57) Morgan Stanley Dean Witter Tax-Exempt Securities Trust
(58) Morgan Stanley Dean Witter Tax-Free Daily Income Trust
(59) Morgan Stanley Dean Witter Total Return Trust
(60) Morgan Stanley Dean Witter U.S. Government Money Market Trust
(61) Morgan Stanley Dean Witter U.S. Government Securities Trust
(62) Morgan Stanley Dean Witter Utilities Fund
(63) Morgan Stanley Dean Witter Value-Added Market Series
(64) Morgan Stanley Dean Witter Value Fund
(65) Morgan Stanley Dean Witter Variable Investment Series
(66) Morgan Stanley Dean Witter World Wide Income Trust

5
<PAGE>

<TABLE>
<CAPTION>
NAME AND POSITION WITH OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
MORGAN STANLEY DEAN OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
WITTER ADVISORS INC. AND NATURE OF CONNECTION
- -------------------------- -------------------------------------------------------
<S> <C>

Mitchell M. Merin President and Chief Operating Officer of Asset
President, Chief Management of Morgan Stanley Dean Witter & Co.
Executive Officer and ("MSDW); Chairman, Chief Executive Officer and Director
Director of Morgan Stanley Dean Witter Distributors Inc. ("MSDW
Distributors") and Morgan Stanley Dean Witter Trust
FSB ("MSDW Trust"); President, Chief Executive
Officer and Director of Morgan Stanley Dean Witter
Services Company Inc. ("MSDW Services"); President of
the Morgan Stanley Dean Witter Funds and Discover
Brokerage Index Series; Executive Vice President and
Director of Dean Witter Reynolds Inc. ("DWR");
Director of various MSDW subsidiaries.

Joseph J. McAlinden Vice President of the Morgan Stanley Dean Witter Funds
Executive Vice President and Discover Brokerage Index Series; Director of MSDW
and Chief Investment Trust.
Officer

Ronald E. Robison President MSDW Trust; Executive Vice President, Chief
Executive Vice President, Administrative Officer and Director of MSDW Services;
Chief Administrative Vice President of the Morgan Stanley Dean Witter Funds
Officer and Director and Discover Brokerage Index Series.

Edward C. Oelsner, III
Executive Vice President

Barry Fink Assistant Secretary of DWR; Senior Vice President,
Senior Vice President, Secretary, General Counsel and Director of MSDW
Secretary, General Services; Senior Vice President, Assistant Secretary and
Counsel and Director Assistant General Counsel of MSDW Distributors; Vice
President, Secretary and General Counsel of the Morgan
Stanley Dean Witter Funds and Discover Brokerage Index
Series.

Peter M. Avelar Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
and Director of the High
Yield Group

Mark Bavoso Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

Douglas Brown
Senior Vice President

Rosalie Clough
Senior Vice President
and Director of Marketing
</TABLE>

6
<PAGE>

Richard Felegy
Senior Vice President

Edward F. Gaylor Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

Robert S. Giambrone Senior Vice President of MSDW Services, MSDW
Senior Vice President Distributors and MSDW Trust and Director of MSDW Trust; Vice
President of the Morgan Stanley Dean Witter Funds and
Discover Brokerage Index Series.

Rajesh K. Gupta Vice President of various Morgan Stanley Dean Witter
Senior Vice President, Funds.
Director of the Taxable
Fixed Income Group and
Chief Administrative Officer -
Investments

Kenton J. Hinchliffe Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds and Discover Brokerage Index Series.

Kevin Hurley Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

Jenny Beth Jones Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

Michelle Kaufman Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

John B. Kemp, III President of MSDW Distributors.
Senior Vice President

Anita H. Kolleeny Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
and Director of Sector
Rotation

Jonathan R. Page Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
and Director of the Money
Market Group

Ira N. Ross Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
</TABLE>

7
<PAGE>

Guy G. Rutherfurd, Jr. Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
and Director of the Growth
Group

Rochelle G. Siegel Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

James Solloway
Senior Vice President

Jayne M. Stevlingson Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.

Paul D. Vance Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
and Director of the Growth
and Income Group

Elizabeth A. Vetell
Senior Vice President
and Director of Shareholder
Communication

James F. Willison Vice President of various Morgan Stanley Dean Witter
Senior Vice President Funds.
and Director of the
Tax-Exempt Fixed
Income Group

Frank Bruttomesso First Vice President and Assistant Secretary of MSDW
First Vice President and Services; Assistant Secretary of MSDW Distributors, the
Assistant Secretary Morgan Stanley Dean Witter Funds and Discover
Brokerage Index Series.

Thomas F. Caloia First Vice President and Assistant Treasurer of
First Vice President MSDW Services; Assistant Treasurer of MSDW
and Assistant Distributors; Treasurer and Chief Financial and Accounting
Treasurer Officer of the Morgan Stanley Dean Witter Funds and
Discover Brokerage Index Series.

Thomas Chronert
First Vice President
</TABLE>

8
<PAGE>

Marilyn K. Cranney Assistant Secretary of DWR; First Vice President and
First Vice President Assistant Secretary of MSDW Services; Assistant
and Assistant Secretary Secretary of MSDW Distributors, the Morgan Stanley Dean
Witter Funds and Discover Brokerage Index Series.

Salvatore DeSteno First Vice President of MSDW Services.
First Vice President

Peter W. Gurman
First Vice President

Michael Interrante First Vice President and Controller of MSDW Services;
First Vice President Assistant Treasurer of MSDW Distributors; First Vice
and Controller President and Treasurer of MSDW Trust.

David Johnson
First Vice President

Stanley Kapica
First Vice President

Lou Anne D. McInnis First Vice President and Assistant Secretary of MSDW
First Vice President and Services; Assistant Secretary of MSDW Distributors, the
Assistant Secretary Morgan Stanley Dean Witter Funds and Discover
Brokerage Index Series.

Carsten Otto First Vice President and Assistant Secretary of MSDW
First Vice President Services; Assistant Secretary of MSDW Distributors, the
and Assistant Secretary Morgan Stanley Dean Witter Funds and Discover Brokerage
Index Series.

Ruth Rossi First Vice President and Assistant Secretary of MSDW
First Vice President and Services; Assistant Secretary of MSDW Distributors, the
Assistant Secretary Morgan Stanley Dean Witter Funds and Discover
Brokerage Index Series.

James P. Wallin
First Vice President

Robert Abreu
Vice President

Dale Albright
Vice President

Joan G. Allman
Vice President
</TABLE>

9
<PAGE>

Andrew Arbenz
Vice President

Joseph Arcieri Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Armon Bar-Tur
Vice President

Raymond Basile
Vice President

Nancy Belza
Vice President

Maurice Bendrihem
Vice President and
Assistant Controller

Dale Boettcher
Vice President

Ronald Caldwell
Vice President

Joseph Cardwell
Vice President

Liam Carroll
Vice President

Philip Casparius
Vice President

Aaron Clark
Vice President

William Connerly
Vice President

David Dineen
Vice President

Sheila Finnerty Vice President of Morgan Stanley Dean Witter Prime
Vice President Income Trust
</TABLE>

10
<PAGE>

Jeffrey D. Geffen
Vice President

Sandra Gelpieryn
Vice President

Charmaine George
Vice President

Michael Geringer
Vice President

Gail Gerrity
Vice President

Ellen Gold
Vice President

Stephen Greenhut
Vice President

Trey Hancock
Vice President

Matthew Haynes Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Peter Hermann Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

David T. Hoffman
Vice President

Kevin Jung Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Carol Espejo-Kane
Vice President

Nancy Karole-Kennedy
Vice President

Doug Ketterer
Vice President

Paula LaCosta Vice President of various Morgan Stanley Dean Witter
Vice President Funds.
</TABLE>

11
<PAGE>

Kimberly LaHart
Vice President

Thomas Lawlor
Vice President

Todd Lebo Vice President and Assistant Secretary of MSDW
Vice President and Services; Assistant Secretary of MSDW Distributors, the
Assistant Secretary Morgan Stanley Dean Witter Funds and Discover
Brokerage Index Series.

Gerard J. Lian Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Nancy Login
Vice President

Sharon Loguercio
Vice President

Steven MacNamara
Vice President

Catherine Maniscalco Vice President of Morgan Stanley Dean Witter Natural
Vice President Resource Development Securities Inc.

Albert McGarity
Vice President

Teresa McRoberts Vice President of Morgan Stanley Dean Witter S&P 500
Vice President Select Fund.

Mark Mitchell
Vice President

Julie Morrone
Vice President

Mary Beth Mueller
Vice President

David Myers Vice President of Morgan Stanley Dean Witter Natural
Vice President Resource Development Securities Inc.

James Nash
Vice President
</TABLE>

12
<PAGE>

Richard Norris
Vice President

Anne Pickrell Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Dawn Rorke
Vice President

John Roscoe Vice President of Morgan Stanley Dean Witter
Vice President Real Estate Fund

Hugh Rose
Vice President

Robert Rossetti Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Carl F. Sadler
Vice President

Deborah Santaniello
Vice President

Patrice Saunders
Vice President

Howard A. Schloss Vice President of Morgan Stanley Dean Witter Federal
Vice President Securities Trust.

Peter J. Seeley Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Robert Stearns
Vice President

Naomi Stein
Vice President

Michael Strayhorn
Vice President

Kathleen H. Stromberg Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

Marybeth Swisher
Vice President
</TABLE>

13
<PAGE>

Michael Thayer
Vice President

Robert Vanden Assem
Vice President

David Walsh
Vice President

Alice Weiss Vice President of various Morgan Stanley Dean Witter
Vice President Funds.

John Wong
Vice President
</TABLE>

The principal address of MSDW Advisors, MSDW Services, MSDW
Distributors, DWR, the Morgan Stanley Dean Witter Funds and Discover Brokerage
Index Series is Two World Trade Center, New York, New York 10048. The principal
address of MSDW is 1585 Broadway, New York, New York 10036. The principal
address of MSDW Trust is 2 Harborside Financial Center, Jersey City, New Jersey
07311.

Item 27. Principal Underwriters

(a) Morgan Stanley Dean Witter Distributors Inc. ("MSDW Distributors"), a
Delaware corporation, is the principal underwriter of the Registrant. MSDW
Distributors is also the principal underwriter of the following investment
companies:

(1) Active Assets California Tax-Free Trust
(2) Active Assets Government Securities Trust
(3) Active Assets Money Trust
(4) Active Assets Tax-Free Trust
(5) Morgan Stanley Dean Witter Aggressive Equity Fund
(6) Morgan Stanley Dean Witter American Opportunities Fund
(7) Morgan Stanley Dean Witter Balanced Growth Fund
(8) Morgan Stanley Dean Witter Balanced Income Fund
(9) Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
(10) Morgan Stanley Dean Witter California Tax-Free Income Fund
(11) Morgan Stanley Dean Witter Capital Growth Securities
(12) Morgan Stanley Dean Witter Competitive Edge Fund, "Best Ideas Portfolio"
(13) Morgan Stanley Dean Witter Convertible Securities Trust
(14) Morgan Stanley Dean Witter Developing Growth Securities Trust
(15) Morgan Stanley Dean Witter Diversified Income Trust
(16) Morgan Stanley Dean Witter Dividend Growth Securities Inc.
(17) Morgan Stanley Dean Witter Equity Fund
(18) Morgan Stanley Dean Witter European Growth Fund Inc.
(19) Morgan Stanley Dean Witter Federal Securities Trust
(20) Morgan Stanley Dean Witter Financial Services Trust

14
<PAGE>

(21) Morgan Stanley Dean Witter Fund of Funds
(22) Morgan Stanley Dean Witter Global Dividend Growth Securities
(23) Morgan Stanley Dean Witter Global Utilities Fund
(24) Morgan Stanley Dean Witter Growth Fund
(25) Morgan Stanley Dean Witter Hawaii Municipal Trust
(26) Morgan Stanley Dean Witter Health Sciences Trust
(27) Morgan Stanley Dean Witter High Yield Securities Inc.
(28) Morgan Stanley Dean Witter Income Builder Fund
(29) Morgan Stanley Dean Witter Information Fund
(30) Morgan Stanley Dean Witter Intermediate Income Securities
(31) Morgan Stanley Dean Witter International Fund
(32) Morgan Stanley Dean Witter International SmallCap Fund
(33) Morgan Stanley Dean Witter Japan Fund
(34) Morgan Stanley Dean Witter Latin American Growth Fund
(35) Morgan Stanley Dean Witter Limited Term Municipal Trust
(36) Morgan Stanley Dean Witter Liquid Asset Fund Inc.
(37) Morgan Stanley Dean Witter Market Leader Trust
(38) Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities
(39) Morgan Stanley Dean Witter Mid-Cap Equity Trust
(40) Morgan Stanley Dean Witter Multi-State Municipal Series Trust
(41) Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
(42) Morgan Stanley Dean Witter New York Municipal Money Market Trust
(43) Morgan Stanley Dean Witter New York Tax-Free Income Fund
(44) Morgan Stanley Dean Witter North American Government Income Trust
(45) Morgan Stanley Dean Witter Pacific Growth Fund Inc.
(46) Morgan Stanley Dean Witter Precious Metals and Minerals Trust
(47) Morgan Stanley Dean Witter Prime Income Trust
(48) Morgan Stanley Dean Witter Real Estate Fund
(49) Morgan Stanley Dean Witter S&P 500 Index Fund
(50) Morgan Stanley Dean Witter S&P 500 Select Fund
(51) Morgan Stanley Dean Witter Short-Term Bond Fund
(52) Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
(53) Morgan Stanley Dean Witter Small Cap Growth Fund
(54) Morgan Stanley Dean Witter Special Value Fund
(55) Morgan Stanley Dean Witter Strategist Fund
(56) Morgan Stanley Dean Witter Tax-Exempt Securities Trust
(57) Morgan Stanley Dean Witter Tax-Free Daily Income Trust
(58) Morgan Stanley Dean Witter Total Return Trust
(59) Morgan Stanley Dean Witter U.S. Government Money Market Trust
(60) Morgan Stanley Dean Witter U.S. Government Securities Trust
(61) Morgan Stanley Dean Witter Utilities Fund
(62) Morgan Stanley Dean Witter Value-Added Market Series
(63) Morgan Stanley Dean Witter Value Fund
(64) Morgan Stanley Dean Witter Variable Investment Series
(65) Morgan Stanley Dean Witter World Wide Income Trust

(b) The following information is given regarding directors and officers of MSDW
Distributors not listed in Item 26 above. The principal address of MSDW
Distributors is Two World Trade Center, New York, New York 10048. Other than Mr.
Purcell, who is a Trustee of the Registrant, none of the following persons has
any position or office with the Registrant.

15
<PAGE>

Name Positions and Office with MSDW Distributors
- ---- -------------------------------------------

Michael T. Gregg Vice President and Assistant Secretary.

James F. Higgins Director

Fredrick K. Kubler Senior Vice President, Assistant Secretary and Chief
Compliance Officer.

Philip J. Purcell Director

John Schaeffer Director

Charles Vadala Senior Vice President and Financial Principal.

Item 28. Location of Accounts and Records

All accounts, books and other documents required to be maintained by
Section 31(a) of the Investment Company Act of 1940 and the Rules thereunder are
maintained by the Investment Manager at its offices, except records relating to
holders of shares issued by the Registrant, which are maintained by the
Registrant's Transfer Agent, at its place of business as shown in the
prospectus.

Item 29. Management Services

Registrant is not a party to any such management-related service
contract.

Item 30. Undertakings

Registrant hereby undertakes to furnish each person to whom a
prospectus is delivered with a copy of the Registrant's latest annual report to
shareholders, upon request and without charge.

16
<PAGE>

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it meets all of
the requirements for effectiveness of this Registration Statement pursuant to
Rule 485(b) under the Securities Act of 1933 and has duly caused this
Post-Effective Amendment to the Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of New York
and State of New York on the 25th day of June, 1999.

MORGAN STANLEY DEAN WITTER
MID-CAP DIVIDEND GROWTH SECURITIES

By: /s/ Barry Fink
----------------------------------
Barry Fink
Vice President and Secretary

Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment No. 2 has been signed below by the following persons in
the capacities and on the dates indicated.

Signatures Title Date
---------- ----- ----

(1) Principal Executive Officer Chairman, Chief Executive Officer
and Trustee

By: /s/ Charles A. Fiumefreddo 6/25/99
------------------------------
Charles A. Fiumefreddo

(2) Principal Financial Officer Treasurer and Principal
Accounting Officer

By: /s/ Thomas F. Caloia 6/25/99
------------------------------
Thomas F. Caloia

(3) Majority of the Trustees

Charles A. Fiumefreddo (Chairman)
Philip J. Purcell

By: /s/ Barry Fink 6/25/99
------------------------------
Barry Fink
Attorney-in-Fact

Michael Bozic Manuel H. Johnson
Edwin J. Garn Michael E. Nugent
Wayne E. Hedien John L. Schroeder

By: /s/ David M. Butowsky 6/25/99
------------------------------
David M. Butowsky
Attorney-in-Fact

<PAGE>

MORGAN STANLEY DEAN WITTER MID-CAP DIVIDEND GROWTH SECURITIES

EXHIBIT INDEX

10. Consent of Independent Accountants.

<PAGE>

CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the use in the Statement of Additional Information
constituting part of this Post-Effective Amendment No. 2 to the registration
statement on Form N-1A (the "Registration Statement") of our report dated
April 14, 1999, relating to the financial statements and financial highlights
of Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities, which appears
in such Statement of Additional Information, and to the incorporation by
reference of our report into the Prospectus which constitutes part of this
Registration Statement. We also consent to the references to us under the
headings "Custodian and Independent Accountants" and "Experts" in such Statement
of Additional Information and to the reference to us under the heading
"Financial Highlights" in such Prospectus.

PricewaterhouseCoopers LLP
1177 Avenue of the Americas
New York, New York 10036
June 24, 1999