TCW DW MID CAP EQUITY TRUST, 497, 1997-02-03

TCW DW MID CAP EQUITY TRUST
497, 1997-02-03

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<PAGE>
Filed Pursuant to Rule 497(e)
Registration File No.: 33-63685

TCW/DW MID-CAP EQUITY TRUST
PROSPECTUS
JANUARY 24, 1997

TCW/DW Mid-Cap Equity Trust (the "Fund") is an open-end, diversified
management investment company, whose investment objective is long-term
capital appreciation. The Fund seeks to achieve its investment objective by
investing primarily in equity securities issued by medium-sized companies
whose market capitalizations, at the time of acquisition, are in the $300
million to $5 billion range and that, in the opinion of the Fund's Adviser,
exhibit superior earnings growth prospects and attractive stock market
valuations. See "Investment Objective and Policies."

Shares of the Fund are continuously offered at the net asset value per share
next determined following receipt of an order without imposition of a sales
charge. However, repurchases and/or redemptions of shares are subject in most
cases to a contingent deferred sales charge, scaled down from 5% to 1% of the
amount redeemed, if made within six years of purchase, which charge will be
paid to the Fund's Distributor, Dean Witter Distributors Inc. See
"Repurchases and Redemptions--Contingent Deferred Sales Charge." In addition,
the Fund pays the Distributor a Rule 12b-1 distribution fee pursuant to a
Plan of Distribution at the annual rate of 1% of the lesser of the (i)
average daily aggregate net sales or (ii) average daily net assets of the
Fund. See "Purchase of Fund Shares--Plan of Distribution."

This Prospectus sets forth concisely the information you should know before
investing in the Fund. It should be read and retained for future reference.
Additional information about the Fund is contained in the Statement of
Additional Information, dated January 24, 1997, which has been filed with the
Securities and Exchange Commission, and which is available at no charge upon
request of the Fund at the address or telephone numbers listed on this page.
The Statement of Additional Information is incorporated herein by reference.

TABLE OF CONTENTS

Prospectus Summary .................................................... 2

Summary of Fund Expenses .............................................. 3

Financial Highlights .................................................. 4

The Fund and its Management ........................................... 4

Investment Objective and Policies ..................................... 5

Risk Considerations and Investment Practices ....................... 6

Investment Restrictions ............................................... 9

Purchase of Fund Shares ............................................... 9

Shareholder Services .................................................. 11

Repurchases and Redemptions ........................................... 13

Dividends, Distributions and Taxes .................................... 14

Performance Information ............................................... 15

Additional Information ................................................ 15

Shares of the Fund are not deposits or obligations of, or guaranteed or
endorsed by, any bank, and the shares are not federally insured by the
Federal Deposit Insurance Corporation, the Federal Reserve Board, or any
other agency.

TCW/DW MID-CAP EQUITY TRUST
Two World Trade Center
New York, New York 10048
(212) 392-2550 or
(800) 869-NEWS (toll-free)

Dean Witter Distributors Inc.
Distributor

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.

<PAGE>

PROSPECTUS SUMMARY
- -------------------------------------------------------------------

<TABLE>
<CAPTION>
<S> <C>
THE The Fund is organized as a Trust, commonly known as a Massachusetts business
FUND trust, and is an open-end, diversified management investment company
investing primarily in equity securities issued by medium-sized companies
whose market capitalizations, at the time of acquisition, are in the $300
million to $5 billion range and that, in the opinion of the Adviser exhibit
superior earnings growth prospects and attractive stock market valuations.
- ------------------ -----------------------------------------------------------------------------
SHARES Shares of beneficial interest with $.01 par value (see page 15).
OFFERED
- ------------------ -----------------------------------------------------------------------------
OFFERING At net asset value (see page 10). Shares redeemed within six years of
PRICE purchase are subject to a contingent deferred sales charge under most
circumstances (see page 13).
- ------------------ -----------------------------------------------------------------------------
MINIMUM Minimum initial investment, $1,000 ($100 if the account is opened through
PURCHASE EasyInvest (Service Mark) ); minimum subsequent investment, $100 (see
page 9).
- ------------------ -----------------------------------------------------------------------------
INVESTMENT The investment objective of the Fund is long-term capital appreciation.
OBJECTIVE
- ------------------ -----------------------------------------------------------------------------
MANAGER Dean Witter Services Company Inc. (the "Manager"), a wholly-owned subsidiary
of Dean Witter InterCapital Inc. ("InterCapital"), is the Fund's manager. The
Manager also serves as manager to thirteen other investment companies advised
by TCW Funds Management, Inc. (the "TCW/DW Funds"). The Manager and
InterCapital serve in various investment management, advisory, management and
administrative capacities to a total of 101 investment companies and other
portfolios with assets of approximately $90 billion at December 31, 1996 (see
page 4).
- ------------------ -----------------------------------------------------------------------------
ADVISER TCW Funds Management, Inc. (the "Adviser") is the Fund's investment adviser.
In addition to the Fund, the Adviser serves as investment adviser to thirteen
other TCW/DW Funds. As of December 31, 1996, the Adviser and its affiliates
had approximately $53 billion under management or committed to management in
various fiduciary or advisory capacities, primarily to institutional
investors (see page 4).
- ------------------ -----------------------------------------------------------------------------
MANAGEMENT The Manager receives a monthly fee at the annual rate of 0.60% of daily net
AND ADVISORY assets. The Adviser receives a monthly fee at an annual rate of 0.40% of
FEES daily net assets (see page 5).
- ------------------ -----------------------------------------------------------------------------
DIVIDENDS Income dividends and capital gains, if any, will be distributed no less than
annually. Dividends and capital gains distributions are automatically
reinvested in additional shares at net asset value unless the shareholder
elects to receive cash (see page 14).
- ------------------ -----------------------------------------------------------------------------
DISTRIBUTOR Dean Witter Distributors Inc. (the "Distributor"). The Distributor receives
from the Fund a distribution fee accrued daily and payable monthly at the
rate of 1.0% per annum of the lesser of (i) the average daily aggregate net
sales or (ii) the Fund's average daily net assets. This fee compensates the
Distributor for services provided in distributing shares of the Fund and for
sales-related expenses. The Distributor also receives the proceeds of any
contingent deferred sales charges (see page 10).
- ------------------ -----------------------------------------------------------------------------
REDEMPTION-- Shares are redeemable by the shareholder at net asset value. An account may
CONTINGENT be involuntarily redeemed if the total value of the account is less than $100
DEFERRED or, if the account was opened through EasyInvest (Service Mark), if after
SALES twelve months the shareholder has invested less than $1,000 in the account.
CHARGE Although no commission or sales load is imposed upon the purchase of shares,
a contingent deferred sales charge (scaled down from 5% to 1%) is imposed on
any redemption of shares if, after such redemption, the aggregate current
value of an account with the Fund is less than the aggregate amount of the
investor's purchase payments made during the six years preceding the
redemption. However, there is no charge imposed on redemption of shares
purchased through reinvestment of dividends or distributions (see page 13).
- ------------------ -----------------------------------------------------------------------------
RISK The net asset value of the Fund's shares will fluctuate with changes in the
CONSIDERATIONS market value of the Fund's portfolio securities. The market value of the
Fund's portfolio securities will increase or decrease due to a variety of
economic, market or political factors which cannot be predicted. The Fund is
intended for long-term investors who can accept the risks involved in seeking
long-term capital appreciation through the investment in securities of
medium-sized companies whose equity capitalizations are in the $300 million
to $5 billion range which involve greater risk of volatility in the Fund's
net asset value than is associated with the investment in larger, more
established companies. The Fund may invest in foreign securities and may
purchase securities on a when-issued, delayed delivery or "when, as and if
issued" basis, which may involve certain special risks. An investment in
shares of the Fund should not be considered a complete investment program and
is not appropriate for all investors. Investors should carefully consider
their ability to assume these risks and the risks outlined under the heading
"Risk Considerations and Investment Practices," (p. 6) before making an
investment in the Fund
- ------------------ -----------------------------------------------------------------------------

</TABLE>

The above is qualified in its entirety by the detailed information appearing
elsewhere in this Prospectus and in the Statement of Additional Information.

2
<PAGE>
SUMMARY OF FUND EXPENSES
- -----------------------------------------------------------------------------

The following table illustrates all expenses and fees that a shareholder
of the Fund will incur. The fees and expenses set forth in the table are for
the fiscal period ended November 30, 1996.

SHAREHOLDER TRANSACTION EXPENSES

<TABLE>
<CAPTION>
<S> <C>
Maximum Sales Charge Imposed on Purchases ............................................. None
Maximum Sales Charge Imposed on Reinvested Dividends .................................. None
Contingent Deferred Sales Charge
(as a percentage of the lesser of original purchase price or redemption proceeds) .. 5.0%
</TABLE>

A contingent deferred sales charge is imposed at the following declining
rates:

<TABLE>
<CAPTION>
YEAR SINCE PURCHASE PAYMENT MADE PERCENTAGE
--------------
<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>

<TABLE>
<CAPTION>
<S> <C>
Redemption Fees .......................................................... None
Exchange Fee ............................................................. None
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)
Management and Advisory Fees ............................................. 1.00%
12b-1 Fees* .............................................................. 0.96%
Other Expenses ........................................................... 0.32%
Total Fund Operating Expenses ............................................ 2.28%
</TABLE>
- ---------
* The 12b-1 fee is accrued daily and payable monthly, at an annual rate
of 1.00% of the lesser of: (a) the average daily aggregate gross sales
of the Fund's shares since inception (not including reinvestment of
dividends or distributions), less the average daily aggregate net asset
value of the Fund's shares redeemed since the Fund's inception upon
which a contingent deferred sales charge has been imposed or waived, or
(b) the Fund's daily net assets. A portion of the 12b-1 fee equal to
0.25% of the Fund's average daily net assets is characterized as a
service fee within the meaning of National Association of Securities
Dealers, Inc. ("NASD") guidelines and is a payment made to the selling
broker for personal service and/or maintenance of shareholder accounts.
The remainder of the 12b-1 fee is an asset based sales charge and is a
distribution fee paid to the Distributor to compensate it for the
services provided and the expenses borne by the Distributor and others
in the distribution of the Fund's shares (see "Purchase of Fund
Shares").

<TABLE>
<CAPTION>
EXAMPLE 1 YEAR 3 YEARS
- ------------------------------------------------------------------------------------------------ ---------- -----------
<S> <C> <C>
You would pay the following expenses on a $1,000 investment assuming (1) 5% annual return and (2)
redemption at the end of each time period: ..................................................... $73 $101
You would pay the following expenses on the same investment, assuming no redemption: ........... $23 $71
</TABLE>

THE ABOVE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES OF THE FUND MAY BE GREATER OR
LESS THAN THOSE SHOWN.

The purpose of this table is to assist the investor in understanding the
various costs and expenses that an investor in the Fund will bear directly or
indirectly. For a more complete description of these costs and expenses, see
"The Fund and its Management," "Plan of Distribution" and "Repurchases and
Redemptions" in this Prospectus.

Long-term shareholders of the Fund may pay more in sales charges including
distribution fees than the economic equivalent of the maximum front-end sales
charges permitted by the NASD.

3
<PAGE>
FINANCIAL HIGHLIGHTS
- -----------------------------------------------------------------------------

The following ratios and per share data for a share of beneficial interest
outstanding throughout the period have been audited by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in
conjunction with the financial statements and notes thereto, and the
unqualified report of the independent accountants which are contained in the
Statement of Additional Information. Further information about the
performance of the Fund is contained in the Fund's Annual Report to
Shareholders, which may be obtained without charge upon request to the Fund.

<TABLE>
<CAPTION>
FOR THE PERIOD
FEBRUARY 27, 1996*
THROUGH
NOVEMBER 30, 1996
------------------
<S> <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period .. $ 10.00
------------------
Net investment loss .................... (0.13)
Net realized and unrealized gain ...... 1.05
------------------
Total from investment operations ...... 0.92
------------------
Net asset value, end of period ......... $ 10.92
==================
TOTAL INVESTMENT RETURN+ ............... 9.20 %(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses ............................... 2.28 %(2)
Net investment loss .................... (1.79)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands $205,274
Portfolio turnover rate ................ 25%(1)
Average commission rate paid ........... $ 0.0577

</TABLE>

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

* Commencement of operations.

+ 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.

THE FUND AND ITS MANAGEMENT
- ----------------------------------------------------------------------

TCW/DW Mid-Cap Equity Trust (the "Fund") is an open-end, diversified
management investment company. The Fund is a trust of the type commonly known
as a "Massachusetts business trust" and was organized under the laws of
Massachusetts on October 17, 1995.

Dean Witter Services Company Inc. (the "Manager"), whose address is Two
World Trade Center, New York, New York 10048, is the Fund's Manager. The
Manager is a wholly-owned subsidiary of Dean Witter InterCapital Inc.
("InterCapital"). InterCapital is a wholly-owned subsidiary of Dean Witter,
Discover & Co. ("DWDC"), a balanced financial services organization providing
a broad range of nationally marketed credit and investment products.

The Manager acts as manager to thirteen other TCW/DW Funds. The Manager
and InterCapital serve in various investment management, advisory, management
and administrative capacities to a total of 101 investment companies, thirty
of which are listed on the New York Stock Exchange, with combined assets of
approximately $86.9 billion as of December 31, 1996. InterCapital also
manages and advises portfolios of pension plans, other institutions and
individuals which aggregated approximately $3.1 billion at such date.

The Fund has retained the Manager to manage its business affairs,
supervise its overall day-to-day operations (other than providing investment
advice) and provide all administrative services.

TCW Funds Management, Inc. (the "Adviser"), whose address is 865 South
Figueroa Street, Suite 1800, Los Angeles, California 90017, is the Fund's
investment adviser. The Adviser was organized in 1987 as a wholly-owned
subsidiary of The TCW Group, Inc. ("TCW"), whose subsidiaries, including
Trust Company of the West and TCW Asset Management Company, provide a variety
of trust, investment management and investment advisory services. Robert A.
Day, who is Chairman of the Board of Directors of TCW, may be deemed to be a
control person of the Adviser by virtue of the aggregate ownership by Mr. Day
and his family of more than 25% of the outstanding voting stock of TCW. The
Adviser serves as investment adviser to thirteen other TCW/DW Funds in
addition to the Fund. As of December 31, 1996, the Adviser and its affiliated
companies had approximately $53 billion under management or committed to
management, primarily from institutional investors.

The Fund has retained the Adviser to invest the Fund's assets.

4
<PAGE>
The Fund's Trustees review the various services provided by the Manager
and the Adviser to ensure that the Fund's general investment policies and
programs are being properly carried out and that administrative services are
being provided to the Fund in a satisfactory manner.

As full compensation for the services and facilities furnished to the Fund
and for expenses of the Fund assumed by the Manager, the Fund pays the
Manager monthly compensation calculated daily by applying the annual rate of
0.60% to the Fund's net assets. As compensation for its investment advisory
services, the Fund pays the Adviser monthly compensation calculated daily by
applying an annual rate of 0.40% to the Fund's net assets. The total fees
paid by the Fund to the Manager and the Adviser are higher than the fees paid
by most other investment companies for similar services. For the fiscal
period ended November 30, 1996, the Fund accrued to the Manager and the
Adviser total compensation amounting to an annualized rate of 0.60% and
0.40%, respectively, of the Fund's average daily net assets. During the
period, the Fund's total expenses amounted to an annualized rate of 2.28% of
the Fund's average daily net assets.

INVESTMENT OBJECTIVE AND POLICIES
- ----------------------------------------------------------------------

The investment objective of the Fund is long-term capital appreciation.
This objective is fundamental and may not be changed without shareholder
approval. There is no assurance that the objective will be achieved.

The Fund seeks to achieve its investment objective by investing under
normal circumstances at least 65% of its total assets in equity securities
issued by medium-sized companies whose market capitalizations, at the time of
acquisition, are in the $300 million to $5 billion range and that, in the
opinion of the Adviser, exhibit superior earnings growth prospects and
attractive stock market valuations. The Fund may purchase securities with
market capitalizations not within the $300 million to $5 billion range, but
such securities will not apply to the 65% requirement described above. The
equity securities in which the Fund may invest include common stocks and
convertible securities such as investment grade convertible bonds, notes,
debentures, preferred stocks or other securities convertible into common
stock.

The Adviser intends to pursue a "bottom-up" investment philosophy in
investing the Fund's assets. The "bottom-up" investment process is
characterized by the Adviser's proprietary research process which is to be
used in the selection of investments. Quantitative and qualitative criteria
also will be used to screen the more than 1,000 medium-sized companies within
the $300 million to $5 billion market capitalization range thereby providing
the Adviser with a list of potential investment securities. This list of
securities is then subjected to fundamental analysis. The Adviser will
consider certain criteria which include, amongst other things, a demonstrated
record of consistent earnings growth or the potential to grow earnings; an
ability to earn an attractive return on equity; the Adviser's expectation
that earnings will exceed Wall Street research analysts' earnings estimates
(i.e., potential for earnings surprises); a price/ earnings ratio which is
less than the Adviser's internally estimated three-year earnings growth rate;
a large and growing market share; a strong balance sheet (i.e., low debt to
capitalization ratio); a significant ownership interest by management and a
strong management team. Under normal market conditions, the Fund intends to
hold a portfolio generally containing approximately 40 to 60 issues. Subject
to the Fund's investment objective, the Adviser may modify the foregoing
criteria and analysis without notice.

Up to 25% of the Fund's total assets may be invested in equity securities
of foreign issuers. Such foreign investments may be in the form of direct
investments in securities of foreign issuers or in the form of American
Depository Receipts (ADRs), European Depository Receipts (EDRs) or other
similar securities convertible into securities of foreign issuers. These
securities may not necessarily be denominated in the same currency as the
securities into which they may be converted. ADRs are receipts typically
issued by a United States bank or trust company evidencing ownership of the
underlying securities. EDRs are European receipts evidencing a similar
arrangement. Generally, ADRs, in registered form, are designed for use in the
United States securities markets and EDRs, in bearer form, are designed for
use in European securities markets. The Fund's investments in unlisted
foreign securities are subject to the Fund's overall policy limiting its
investment in illiquid securities to 15% or less of its net assets.

Up to 35% of the Fund's total assets may be invested in equity securities
whose market capitalization at the time of acquisition are not within the
$300 million to $5 billion range, as well as in investment grade fixed-income
securities consisting of securities issued or guaranteed by the U.S.
Government, its agencies or instrumentalities, corporate debt securities and
money market instruments. With respect to corporate debt securities, the term
"investment grade" means securities which are rated Baa or higher by Moody's
Investors Services, Inc. ("Moody's") or BBB or higher by Standard & Poor's
Corporation ("S&P") or, if not rated, are deemed by the Adviser to be of
comparable quality. See the Appendix to the Statement of Additional
Information for a discussion of ratings of fixed-income securities.

Investments in fixed-income securities rated either BBB by S&P or Baa by
Moody's (the lowest credit ratings designated "investment grade") have
speculative characteristics and, therefore, changes in economic conditions or
other circumstances are more likely to weaken their capacity to make
principal and interest payments than would be the case with investments in
securities with higher credit ratings. If a fixed-income or convertible
security held by the Fund is rated BBB or Baa and is subsequently downgraded
by a rating agency, or otherwise falls below investment grade, the Fund will
sell such securities as soon as is practicable without undue market or tax
consequences to the Fund.

5
<PAGE>
The Fund may also invest up to 5% of its assets in convertible securities
and other fixed-income securities rated below investment grade. Securities
below investment grade are the equivalent of high yield, high risk bonds
(commonly known as "junk bonds"). However, the Fund will not invest in
convertible and other fixed-income securities that are rated lower than B by
S&P or Moody's or, if not rated, determined to be of comparable quality by
the Adviser. The Fund will not invest in fixed-income securities that are in
default in payment of principal or interest. A description of fixed-income
securities ratings is contained in the Appendix to the Statement of
Additional Information. A convertible security is a bond, debenture, note,
preferred stock or other security that may be converted into or exchanged for
a prescribed amount of common stock of the same or a different issuer within
a particular period of time at a specified price or formula. Convertible
securities rank senior to common stocks in a corporation's capital structure
and, therefore, entail less risk than the corporation's common stock. The
value of a convertible security is a function of its "investment value" (its
value as if it did not have a conversion privilege), and its "conversion
value" (the security's worth if it were to be exchanged for the underlying
security, at market value, pursuant to its conversion privilege). To the
extent that a convertible security's investment value is greater than its
conversion value, its price will be primarily a reflection of such investment
value and its price will be likely to increase when interest rates fall and
decrease when interest rates rise, as with a fixed-income security (the
credit standing of the issuer and other factors may also have an effect on
the convertible security's value). If the conversion value exceeds the
investment value, the price of the convertible security will rise above its
investment value and, in addition, may sell at some premium over its
conversion value. (This premium represents the price investors are willing to
pay for the privilege of purchasing a fixed-income security with a
possibility of capital appreciation due to the conversion privilege). At such
times the price of the convertible security will tend to fluctuate directly
with the price of the underlying equity security.

Money market instruments in which the Fund may invest are securities
issued or guaranteed by the U.S. Government or its agencies (Treasury Bills,
Notes and Bonds); obligations of banks subject to regulation by the U.S.
Government and having total assets of $1 billion or more; Eurodollar
certificates of deposit; obligations of savings banks and savings and loan
associations having total assets of $1 billion or more; fully insured
certificates of deposit; and commercial paper rated within the two highest
grades by Moody's or S&P or, if not rated, issued by a company having an
outstanding debt issue rated AAA by S&P or Aaa by Moody's.

There may be periods during which, in the opinion of the Adviser, market
conditions warrant reduction of some or all of the Fund's securities
holdings. During such periods, the Fund may adopt a temporary "defensive"
posture in which up to 100% of its total assets may be invested in money
market instruments or cash.

The Fund will not invest in options and futures contracts.

RISK CONSIDERATIONS AND INVESTMENT PRACTICES

Given the investment risks described below, an investment in shares of the
Fund should not be considered a complete investment program and is not
appropriate for all investors. Investors should carefully consider their
ability to assume these risks before making an investment in the Fund.

The net asset value of the Fund's shares will fluctuate with changes in
the market value of the Fund's portfolio securities. The market value of the
Fund's portfolio securities will increase or decrease due to a variety of
economic, market or political factors which cannot be predicted.
Additionally, the net asset value of the Fund's shares may increase or
decrease due to changes in prevailing interest rates. Generally, a rise in
interest rates will result in a decrease in the value of the Fund's
fixed-income securities, while a drop in interest rates will result in an
increase in the value of those securities.

Mid-Cap Stocks. The Fund is intended for long-term investors who can
accept the risks involved in seeking long-term capital appreciation through
the investment in securities of medium-sized companies whose market
capitalizations, at the time of acquisition, are in the $300 million to $5
billion range which may involve greater risk of volatility of the Fund's net
asset value than is customarily associated with investing in larger, more
established companies. Often mid-size companies and the industries in which
they are focused are still evolving and while this may offer better growth
potential than larger, established companies, it also may make them more
sensitive to changing market conditions. Because prices of stocks, including
mid-cap stocks, fluctuate from day to day, the value of an investment in the
Fund will vary based upon the Fund's investment performance.

<PAGE>

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

To the extent that a convertible security's investment value is greater
than its conversion value, its price will be primarily a reflection of such
investment value and its price will be likely to increase when interest rates
fall and decrease when interest rates rise, as with a fixed-income security
(the credit standing of the issuer and other factors may also have an effect
on the convertible security's value). If the conversion value exceeds the
investment value, the price of the convertible security will rise above its
investment value and,

6
<PAGE>
in addition, may sell at some premium over its conversion value. (This
premium represents the price investors are willing to pay for the privilege
of purchasing a fixed-income security with a possibility of capital
appreciation due to the conversion privilege.) At such times the price of the
convertible security will tend to fluctuate directly with the price of the
underlying equity security. In addition, see "High Yield, High Risk
Securities" below for a discussion of the risks of investing in convertible
and other fixed-income securities below investment grade.

Foreign securities. Foreign securities investments may be affected by
changes in currency rates or exchange control regulations, changes in
governmental administration or economic or monetary policy (in the United
States and abroad) or changed circumstances in dealings between nations.
Fluctuations in the relative rates of exchange between the currencies of
different nations will affect the value of the Fund's investments denominated
in foreign currency. Changes in foreign currency exchange rates relative to
the U.S. dollar will affect the U.S. dollar value of the Fund's assets
denominated in that currency and thereby impact upon the Fund's total return
on such assets.

Foreign currency exchange rates are determined by forces of supply and
demand on the foreign exchange markets. These forces are themselves affected
by the international balance of payments and other economic and financial
conditions, government intervention, speculation and other factors. Moreover,
foreign currency exchange rates may be affected by the regulatory control of
the exchanges on which the currencies trade.

Investments in foreign securities will also occasion risks relating to
political and economic developments abroad, including the possibility of
expropriations or confiscatory taxation, limitations on the use or transfer
of Fund assets and any effects of foreign social, economic or political
instability. Foreign companies are not subject to the regulatory requirements
of U.S. companies and, as such, there may be less publicly available
information about such companies. Moreover, foreign companies are not subject
to uniform accounting, auditing and financial reporting standards and
requirements comparable to those applicable to U.S. companies.

Securities of foreign issuers may be less liquid than comparable
securities of U.S. issuers and, as such, their price changes may be more
volatile. Furthermore, foreign exchanges and broker-dealers are generally
subject to less government and exchange scrutiny and regulation than their
American counterparts. Brokerage commissions, dealer concessions and other
transaction costs may be higher on foreign markets than in the U.S. In
addition, differences in clearance and settlement procedures on foreign
markets may occasion delays in settlements of the Fund's trades effected in
such markets. As such, the inability to dispose of portfolio securities due
to settlement delays could result in losses to the Fund due to subsequent
declines in value of such securities and the inability of the Fund to make
intended security purchases due to settlement problems could result in a
failure of the Fund to make potentially advantageous investments. To the
extent the Fund purchases Eurodollar certificates of deposit issued by
foreign branches of domestic United States banks, consideration will be given
to their domestic marketability, the lower reserve requirements normally
mandated for overseas banking operations, the possible impact of
interruptions in the flow of international currency transactions and future
international political and economic developments which might adversely
affect the payment of principal or interest.

Repurchase Agreements. The Fund may enter into repurchase agreements,
which may be viewed as a type of secured lending by the Fund, and which
typically involve the acquisition by the Fund of debt securities from a
selling financial institution such as a bank, savings and loan association or
broker-dealer. The agreement provides that the Fund will sell back to the
institution, and that the institution will repurchase, the underlying
security at a specified price and at a fixed time in the future, usually not
more than seven days from the date of purchase. While repurchase agreements
involve certain risks not associated with direct investments in debt
securities, including the risks of default or bankruptcy of the selling
financial institution, the Fund follows procedures designed to minimize those
risks. These procedures include effecting repurchase transactions only with
large, well-capitalized and well-established financial institutions and
maintaining adequate collateralization. See the Statement of Additional
Information for a further discussion of such investments.

<PAGE>

Private Placements. The Fund may invest up to 15% of its total assets in
securities which are subject to restrictions on resale because they have not
been registered under the Securities Act of 1933, as amended (the "Securities
Act"), or which are otherwise not readily marketable. (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 such 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 such
securities for resale and the risk of substantial delays in effecting such
registration.

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

7
<PAGE>
When-Issued and Delayed Delivery Securities and Forward Commitments. From
time to time, in the ordinary course of business, the Fund may purchase
securities on a when-issued or delayed delivery basis or may purchase or sell
securities on a forward commitment basis. When such transactions are
negotiated, the price is fixed at the time of the commitment, but delivery
and payment can take place a month or more after the date of the commitment.
An increase in the percentage of the Fund's assets committed to the purchase
of securities on a when-issued, delayed delivery or forward commitment basis
may increase the volatility of the Fund's net asset value. See the Statement
of Additional Information for a further discussion of such investments.

When, As and If Issued Securities. The Fund may purchase securities on a
"when, as and if issued" basis under which the issuance of the security
depends upon the occurrence of a subsequent event, such as approval of a
merger, corporate reorganization, leveraged buyout or debt restructuring. If
the anticipated event does not occur and the securities are not issued, the
Fund will have lost an investment opportunity. An increase in the percentage
of the Fund's assets committed to the purchase of securities on a "when, as
and if issued" basis may increase the volatility of its net asset value. See
the Statement of Additional Information for a further discussion of such
investments.

Zero Coupon Securities. A portion of the fixed-income securities purchased
by the Fund may be zero coupon securities. Such securities are purchased at a
discount from their face amount, giving the purchaser the right to receive
their full value at maturity. The interest earned on such securities is,
implicitly, automatically compounded and paid out at maturity. While such
compounding at a constant rate eliminates the risk of receiving lower yields
upon reinvestment of interest if prevailing interest rates decline, the owner
of a zero coupon security will be unable to participate in higher yields upon
reinvestment of interest received on interest-paying securities if prevailing
interest rates rise.

A zero coupon security pays no interest to its holder during its life.
Therefore, to the extent the Fund invests in zero coupon securities, it will
not receive current cash available for distribution to shareholders. In
addition, zero coupon securities are subject to substantially greater price
fluctuations during periods of changing prevailing interest rates than are
comparable securities which pay interest on a current basis. Current federal
tax law requires that a holder (such as the Fund) of a zero coupon security
accrue a portion of the discount at which the security was purchased as
income each year even though the Fund receives no interest payments in cash
on the security during the year.

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 of Portfolio Securities. Consistent with applicable regulatory
requirements, the Fund may lend its portfolio securities to brokers, dealers
and other financial institutions, provided that such loans are callable at
any time by the Fund (subject to certain notice provisions described in the
Statement of Additional Information), and are at all times secured by cash or
money market instruments, which are maintained in a segregated account
pursuant to applicable regulations and that are equal to at least the market
value, determined daily, of the loaned securities. As with any extensions of
credit, there are risks of delay in recovery and in some cases even loss of
rights in the collateral should the borrower of the securities fail
financially. However, loans of portfolio securities will only be made to
firms deemed by the Adviser to be creditworthy and when the income which can
be earned from such loans justifies the attendant risks.

<PAGE>

High Yield, High Risk Securities. Because of the ability of the Fund to
invest in certain high yield, high risk convertible and other fixed-income
securities (commonly known as "junk bonds"), the Adviser must take into
account the special nature of such securities and certain special
considerations in assessing the risks associated with such investments.
Although the growth of the high yield securities market in the 1980s had
paralleled a long economic expansion, since that time many issuers have been
affected by adverse economic and market conditions. It should be recognized
that an economic downturn or increase in interest rates is likely to have a
negative effect on the high yield bond market and on the value of the high
yield securities held by the Fund, as well as on the ability of the
securities' issuers to repay principal and interest on their borrowings.

The prices of high yield securities have been found to be less sensitive
to changes in prevailing interest rates than higher-rated investments but
more sensitive to adverse economic changes or individual corporate
developments. During an economic downturn or substantial period of rising
interest rates, highly leveraged issuers may experience financial stress
which would adversely affect their ability to service their principal and
interest payment obligations, to meet their projected business goals or to
obtain additional financing. If the issuer of a fixed-income security owned
by the Fund defaults, the Fund may incur additional expenses to seek
recovery. In addition, periods of economic uncertainty and change can be
expected to result in an increased volatility of market prices of high yield
securities and a concomitant volatility in the net asset value of a share of
the Fund.

The secondary market for high yield securities may be less liquid than the
markets for higher quality securities and, as such, may have an adverse
effect on the market prices of certain securities. The limited liquidity of
the market may also adversely affect the ability of the Fund's Trustees to
arrive at a fair value for certain high yield securities at

8
<PAGE>
certain times and could make it difficult for the Fund to sell certain
securities. In addition, new laws and potential new laws may have an adverse
effect upon the value of high yield securities and a concomitant negative
impact upon the net asset value of a share of the Fund.

PORTFOLIO MANAGEMENT

The Fund's portfolio is actively managed by its Adviser with a view to
achieving the Fund's investment objective. Douglas S. Foreman, Managing
Director of the Adviser, is the Fund's primary portfolio manager and
Christopher J. Ainley, Managing Director of the Adviser, assists Mr. Foreman
in managing the Fund's assets. Mr. Foreman and Mr. Ainley have been portfolio
managers with affiliates of The TCW Group, Inc. since 1994, prior to which
they were portfolio managers with Putnam Investments.

In determining which securities to purchase for the Fund or hold in the
Fund's portfolio, the Adviser will rely on information from various sources,
including research, analysis and appraisals of brokers and dealers, including
Dean Witter Reynolds Inc. ("DWR"), a broker-dealer affiliate of the Manager,
and others regarding economic developments and interest rate trends, and the
Adviser's own analysis of factors it deems relevant.

Orders for transactions in portfolio securities and commodities are placed
for the Fund with a number of brokers and dealers, including DWR. The Fund
may incur brokerage commissions on transactions conducted through DWR. The
Fund intends to buy and hold securities for capital appreciation. Although
the Fund does not intend to engage in substantial short-term trading as a
means of achieving its investment objective, the Fund may sell portfolio
securities without regard to the length of time that they have been held, in
order to take advantage of new investment opportunities or yield
differentials, or because the Fund desires to preserve gains or limit losses
due to changing economic conditions, interest rate trends, or the financial
condition of the issuer. It is not anticipated that the Fund's portfolio
turnover rate will exceed 150% in any one year. The Fund will incur
underwriting discount costs (on underwritten securities) and brokerage costs
commensurate with its portfolio turnover rate, and thus a higher level (over
100%) of portfolio transactions will increase the Fund's overall brokerage
expenses. Short term gains and losses may result from such portfolio
transactions. See "Dividends, Distributions and Taxes" for a discussion of
the tax implications of the Fund's transactions.

The expenses of the Fund relating to its portfolio management are likely
to be greater than those incurred by other investment companies investing
only in securities issued by domestic issuers, as custodial costs, brokerage
commissions and other transaction charges related to investing on foreign
markets are generally higher than in the United States.

Except as specifically noted, all investment policies and practices
discussed above are not fundamental policies of the Fund and thus may be
changed without shareholder approval.

INVESTMENT RESTRICTIONS
- ----------------------------------------------------------------------

The investment restrictions listed below are among the restrictions which
have been adopted by the Fund as fundamental policies. Under the Investment
Company Act of 1940, as amended, (the "Act"), a fundamental policy may not be
changed without the vote of a majority of the outstanding voting securities
of the Fund, as defined in the Act. For purposes of the following
limitations: (i) all percentage limitations apply immediately after a
purchase or initial investment, and (ii) any subsequent change in any
applicable percentage resulting from market fluctuations or other changes in
total or net assets does not require elimination of any security from the
portfolio.

The Fund may not:

1. As 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).

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

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

4. Invest more than 5% of the value of its total assets in securities of
issuers having a record, together with predecessors, of less than three
years of continuous operation. This restriction does not apply to
obligations issued or guaranteed by the United States Government, its
agencies or instrumentalities.

PURCHASE OF FUND SHARES
- ----------------------------------------------------------------------

The Fund offers its shares to the public on a continuous basis. Pursuant
to a Distribution Agreement between the Fund and Dean Witter Distributors
Inc. (the "Distributor"), an affiliate of the Manager, shares of the Fund are
distributed by the Distributor and offered by DWR and other dealers (which
may include TCW Brokerage Services, an affiliate of the Adviser) who have
entered into selected broker-dealer agreements with the Distributor
("Selected

9
<PAGE>
Broker-Dealers"). The principal executive office of the Distributor is
located at Two World Trade Center, New York, New York 10048.

The minimum initial purchase is $1,000 and subsequent purchases of $100 or
more may be made by sending a check, payable to TCW/DW Mid-Cap Equity Trust,
directly to Dean Witter Trust Company (the "Transfer Agent") at P.O. Box
1040, Jersey City, NJ 07303, or by contacting an account executive of DWR or
other Selected Broker-Dealer. The minimum initial purchase in the case of
investments through EasyInvest (Service Mark), an automatic purchase plan
(see "Shareholder Services"), is $100, provided that the schedule of
automatic investments will result in investments totalling at least $1,000
within the first twelve months. In the case of investments pursuant to
Systematic Payroll Deduction Plans (including Individual Retirement Plans),
the Fund, in its discretion, may accept investments without regard to any
minimum amounts which would otherwise be required if the Fund has reason to
believe that additional investments will increase the investment in all
accounts under such Plans to at least $1,000. Certificates for shares
purchased will not be issued unless a request is made by the shareholder in
writing to the Transfer Agent.

Shares of the Fund are sold through the Distributor on a normal three
business day settlement basis; that is, payment is due on the third business
day (settlement date) after the order is placed with the Distributor. Since
DWR and other Selected Broker-Dealers forward investors' funds on settlement
date, they will benefit from the temporary use of the funds if payment is
made prior thereto. As noted above, orders placed directly with the Transfer
Agent must be accompanied by payment. Investors will be entitled to receive
income dividends and capital gains distributions if their order is received
by the close of business on the day prior to the record date for such
dividends and distributions.

The offering price will be the net asset value per share next determined
following receipt of an order by the Transfer Agent (see "Determination of
Net Asset Value"). While no sales charge is imposed at the time shares are
purchased, a contingent deferred sales charge may be imposed at the time of
redemption (see "Repurchases and Redemptions"). Sales personnel of a Selected
Broker-Dealer are compensated for selling shares of the Fund at the time of
their sale by the Distributor and/or Selected Broker-Dealer. In addition,
some sales personnel of the Selected Broker-Dealer will receive various types
of non-cash compensation as special sales incentives, including trips,
educational and/or business seminars and merchandise. The Fund and the
Distributor reserve the right to reject any purchase orders.

PLAN OF DISTRIBUTION

The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under
the Act (the "Plan"), under which the Fund pays the Distributor a fee, which
is accrued daily and payable monthly, at an annual rate of 1.0% of the lesser
of: (a) the average daily aggregate gross sales of the Fund's shares since
the inception of the Fund (not including reinvestments of dividends or
capital gains distributions), less the average daily aggregate net asset value
of the Fund's shares redeemed since the Fund's inception upon which a
contingent deferred sales charge has been imposed or waived; or (b) the Fund's
average daily net assets. This fee is treated by the Fund as an expense in the
year it is accrued.

For the fiscal period February 27, 1996 (commencement of operations)
through November 30, 1996, the Fund accrued payments under the Plan amounting
to $1,268,227, which amount is equal to the annualized rate of 0.96% of the
Fund's average daily net assets for the fiscal period. The payments accrued
under the Plan were calculated pursuant to clause (a) of the compensation
formula under the Plan.

A portion of the fee payable pursuant to the Plan, equal to 0.25% of the
Fund's average daily net assets, is characterized as a service fee within the
meaning of NASD guidelines. The service fee is a payment made for personal
service and/or the maintenance of shareholder accounts.

<PAGE>

Amounts paid under the Plan are paid to the Distributor to compensate it
for the services provided and the expenses borne by the Distributor and
others in the distribution of the Fund's shares, including the payment of
commissions for sales of the Fund's shares and compensation to and expenses
of DWR account executives and others who engage in or support distribution of
shares or who service shareholder accounts, including overhead and telephone
expenses; printing and distribution of prospectuses and reports used in
connection with the offering of the Fund's shares to other than current
shareholders; and preparation, printing and distribution of sales literature
and advertising materials. In addition, the Distributor may utilize fees paid
pursuant to the Plan to compensate DWR and other Selected Broker-Dealers for
their opportunity costs in advancing such amounts, which compensation would
be in the form of a carrying charge on any unreimbursed distribution
expenses.

At any given time, the expenses in distributing shares of the Fund may be
in excess of the total of (i) the payments made by the Fund pursuant to the
Plan, and (ii) the proceeds of contingent deferred sales charges paid by
investors upon the redemption of shares (see "Repurchases and
Redemptions--Contingent Deferred Sales Charge"). For example, if $1 million
in expenses in distributing 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 the
excess distribution expenses (including the carrying charge described above)
totalled $9,625,354 at November 30, 1996, which was equal to 4.69% of the
Fund's net assets on such date.

Because there is no requirement under the Plan that the Distributor be
reimbursed for all distribution expenses or any requirement that the Plan be
continued from year to year, such excess amount, if any, 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 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

10
<PAGE>
to treat such expenses. Any cumulative expenses incurred but not yet
recovered through distribution fees of contingent deferred sales charges, may
or may not be recovered through future distribution fees or contingent
deferred sales charges.

DETERMINATION OF NET ASSET VALUE

The net asset value per share of the Fund is determined once daily at 4:00
p.m., New York time (or, on days when the New York Stock Exchange closes
prior to 4:00 p.m., at such earlier time), on each day that the New York
Stock Exchange is open by taking the value of all assets of the Fund,
subtracting all its liabilities, dividing by the number of shares outstanding
and adjusting to the nearest cent. The net asset value per share will not be
determined on Good Friday and on such other federal and non-federal holidays
as are observed by the New York Stock Exchange.

In the calculation of the Fund's net asset value: (1) an equity portfolio
security listed or traded on the New York or American Stock Exchange or other
domestic or foreign stock exchange is valued at its latest sale price on that
exchange; if there were no sales that day, the security is valued at the
latest bid price; 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 Adviser 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 Board of 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. Dividends receivable are accrued
as of the ex-dividend date or as of the time that the relevant ex-dividend
date and amounts become known.

Short-term debt securities with remaining maturities of 60 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. Other short-term debt securities will be valued on a mark-to-market
basis until such time as they reach a remaining maturity of 60 days,
whereupon they will be valued at amortized cost using their value on the 61st
day unless the Trustees determine such does not reflect the securities'
market value, in which case these securities will be valued at their fair
value as determined by the Trustees.

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

SHAREHOLDER SERVICES
- -----------------------------------------------------------------------------

Automatic Investment of Dividends and Distributions. All income dividends
and capital gains distributions are automatically paid in full and fractional
shares of the Fund (or, if specified by the shareholder, any other TCW/DW
Fund), unless the shareholder requests that they be paid in cash. Shares so
acquired are not subject to the imposition of a contingent deferred sales
charge upon their redemption (see "Repurchases and Redemptions").

Investment of Dividends or Distributions Received in Cash. Any shareholder
who receives a cash payment representing a dividend or capital gains
distribution may invest such dividend or distribution at the net asset value
per share next determined after receipt by the Transfer Agent, by returning
the check or the proceeds to the Transfer Agent within 30 days after the
payment date. Shares so acquired are not subject to the imposition of a
contingent deferred sales charge upon their redemption (see "Repurchases and
Redemptions").

<PAGE>

EasyInvest (Service Mark) . Shareholders may subscribe to EasyInvest, an
automatic purchase plan which provides for any amount from $100 to $5,000 to
be transferred automatically from a checking or savings account, on a
semi-monthly, monthly or quarterly basis, to the Fund's Transfer Agent for
investment in shares of the Fund. Shares purchased through EasyInvest will be
added to the shareholder's existing account at the net asset value calculated
the same business day the transfer of funds is effected. For further
information or to subscribe to EasyInvest, shareholders should contact their
DWR or other Selected Broker-Dealer account executive or the Transfer Agent.

Systematic Withdrawal Plan. A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders who own or purchase shares of the Fund
having a minimum value of $10,000 based upon the then current net asset
value. The Withdrawal Plan provides for monthly or quarterly (March, June,
September and December) checks in any dollar amount, not less than $25, or in
any whole percentage of the account balance, on an annualized basis. Any
applicable contingent deferred sales charge will be imposed on shares
redeemed under the Withdrawal Plan (See "Repurchases and
Redemptions--Contingent Deferred Sales Charge"). Therefore, any shareholder
participating in the Withdrawal Plan will have sufficient shares redeemed
from his or her account so that the proceeds (net of any applicable
contingent deferred sales charge) to the shareholder will be the designated
monthly or quarterly amount.

Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for information about any of the
above services.

Tax Sheltered Retirement Plans. Retirement plans are available for use by
corporations, the self-employed, Indi-

11
<PAGE>
vidual Retirement Accounts and Custodial Accounts under Section 403(b)(7) of
the Internal Revenue Code. Adoption of such plans should be on advice of
legal counsel or tax adviser.

For further information regarding plan administration, custodial fees and
other details, investors should contact their account executive or the
Transfer Agent.

EXCHANGE PRIVILEGE

The Fund makes available to its shareholders an "Exchange Privilege"
allowing the exchange of shares of the Fund for shares of any other TCW/DW
Fund sold with a contingent deferred sales charge ("CDSC Funds"), for shares
of TCW/DW North American Government Income Trust, TCW/DW Income and Growth
Fund and TCW/DW Balanced Fund and for shares of five money market funds for
which InterCapital serves as investment manager: Dean Witter Liquid Asset
Fund Inc., Dean Witter U.S. Government Money Market Trust, Dean Witter
Tax-Free Daily Income Trust, Dean Witter California Tax-Free Daily Income
Trust and Dean Witter New York Municipal Money Market Trust (the foregoing
eight funds are hereinafter collectively referred to as the "Exchange
Funds"). Exchanges may be made after the shares of the Fund acquired by
purchase (not by exchange or dividend reinvestment) have been held for thirty
days. There is no waiting period for exchanges of shares acquired by exchange
or dividend reinvestment.

Shareholders utilizing the Fund's Exchange Privilege may subsequently
re-exchange such shares back to the Fund. However, no exchange privilege is
available between the Fund and any other fund managed by the Manager or
InterCapital, other than the TCW/DW Funds and the five money market funds
listed above.

An exchange to another CDSC Fund or to any Exchange Fund that is not a
money market fund is on the basis of the next calculated net asset value per
share of each fund after the exchange order is received. When exchanging into
a money market fund from the Fund or any other TCW/DW Fund, shares of the
Fund are redeemed out of the Fund at their next calculated net asset value
and the proceeds of the redemption are used to purchase shares of the money
market fund at their net asset value determined the following day. Subsequent
exchanges between any of the money market funds and any TCW/DW Fund can be
effected on the same basis. No contingent deferred sales charge ("CDSC") is
imposed at the time of any exchange, although any applicable CDSC will be
imposed upon ultimate redemption. During the period of time the shareholder
remains in the Exchange Fund (calculated from the last day of the month in
which the Exchange Fund shares were acquired), the holding period (for the
purpose of determining the rate of the CDSC) is frozen. If those shares are
subsequently reexchanged for shares of a CDSC Fund, the holding period
previously frozen when the first exchange was made resumes on the last day of
the month in which shares of a CDSC Fund are reacquired. Thus, the CDSC is
based upon the time (calculated as described above) the shareholder was
invested in a CDSC Fund (see "Repurchases and Redemptions--Contingent
Deferred Sales Charge"). However, in the case of shares of the Fund exchanged
into an Exchange Fund, upon a redemption of shares which results in a CDSC
being imposed, a credit (not to exceed the amount of the CDSC) will be given
in an amount equal to the Exchange Fund 12b-1 distribution fees which are
attributable to those shares. (Exchange Fund 12b-1 distribution fees are
described in the prospectuses for those funds.)

Purchases and exchanges should be made for investment purposes only. A
pattern of frequent exchanges may be deemed by the Manager to be abusive and
contrary to the best interests of the Fund's other shareholders and, at the
Manager's discretion, may be limited by the Fund's refusal to accept
additional purchases and/or exchanges from the investor. Although the Fund
does not have any specific definition of what constitutes a pattern of
frequent exchanges, and will consider all relevant factors in determining
whether a particular situation is abusive and contrary to the best interests
of the Fund and its other shareholders, investors should be aware that the
Fund, each of the other TCW/DW Funds and each of the money market funds may
in its discretion limit or otherwise restrict the number of times this
Exchange Privilege may be exercised by any investor. Any such restriction
will be made by the Fund on a prospective basis only, upon notice to the
shareholder not later than ten days following such shareholder's most recent
exchange. Also, the Exchange Privilege may be terminated or revised at any
time by the Fund and/or any of such other TCW/DW Funds or money market funds
for which shares of the Fund have been exchanged, upon such notice as may be
required by applicable regulatory agencies. Shareholders maintaining margin
accounts with DWR or another Selected Broker-Dealer are referred to their
account executive regarding restrictions on exchange of shares of the Fund
pledged in the margin account.

The current prospectus for each fund describes its investment objective(s)
and policies, and shareholders should obtain a copy and examine it carefully
before investing. Exchanges are subject to the minimum investment requirement
and any other conditions imposed by each fund. An exchange will be treated
for federal income tax purposes the same as a repurchase or redemption of
shares, on which the shareholder may realize a capital gain or loss. However,
the ability to deduct capital losses on an exchange may be limited in
situations where there is an exchange of shares within ninety days after the
shares are purchased. The Exchange Privilege is only available in states
where an exchange may legally be made.

If DWR or another Selected Broker-Dealer is the current dealer of record
and its account numbers are part of the account information, shareholders may
initiate an exchange of shares of the Fund for shares of any of the money
market funds for which the Exchange Privilege is available pursuant to this
Exchange Privilege by contacting their DWR or other Selected Broker-Dealer
account executive (no Exchange Privilege Authorization Form is required).
Other shareholders (and those shareholders who are clients

12
<PAGE>
of DWR or another Selected Broker-Dealer but who wish to make exchanges
directly by writing or telephoning the Transfer Agent) must complete and
forward to the Transfer Agent an Exchange Privilege Authorization Form,
copies of which may be obtained from the Transfer Agent, to initiate an
exchange. If the Authorization Form is used, exchanges may be made in writing
or by contacting the Transfer Agent at (800) 869-NEWS (toll-free). The Fund
will employ reasonable procedures to confirm that exchange instructions
communicated over the telephone are genuine. Such procedures include
requiring various forms of personal identification such as name, mailing
address, social security or other tax identification number and DWR or other
Selected Broker-Dealer account number (if any). Telephone instructions will
also be recorded. If such procedures are not employed, the Fund may be liable
for any losses due to unauthorized or fraudulent instructions.

Telephone exchange instructions will be accepted if received by the
Transfer Agent between 9:00 a.m. and 4:00 p.m. New York time, on any day the
New York Stock Exchange is open. Any shareholder wishing to make an exchange
who has previously filed an Exchange Privilege Authorization Form and who is
unable to reach the Fund by telephone should contact his or her DWR or other
Selected Broker-Dealer account executive, if appropriate, or make a written
exchange request. Shareholders are advised that during periods of drastic
economic or market changes, it is possible that the telephone exchange
procedures may be difficult to implement, although this has not been the case
in the past with other funds managed by the Manager.

Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for further information about the
Exchange Privilege.

REPURCHASES AND REDEMPTIONS
- ----------------------------------------------------------------------

Repurchase. DWR and other Selected Dealers are authorized to repurchase
shares represented by a share certificate which is delivered to any of their
offices. Shares held in a shareholder's account without a share certificate
may also be repurchased by DWR and other Selected Broker-Dealers upon the
telephonic or telegraphic request of the shareholder. The repurchase price is
the net asset value per share next computed (see "Purchase of Fund Shares")
after such repurchase order is received by DWR or other Selected
Broker-Dealer, reduced by any applicable CDSC (see below).

The CDSC, if any, will be the only fee imposed by the Fund, the
Distributor, DWR or other Selected Broker-Dealer. The offers by DWR and other
Selected Broker-Dealers to repurchase shares may be suspended without notice
by them at any time. In that event, shareholders may redeem their shares
through the Fund's Transfer Agent as set forth below under "Redemption."

Redemption. Shares of the Fund can be redeemed for cash at any time at the
net asset value per share next determined; however, such redemption proceeds
will be reduced by the amount of any applicable contingent deferred sales
charge (see below). If shares are held in a shareholder's account without a
share certificate, a written request for redemption to the Fund's Transfer
Agent at P.O. Box 983, Jersey City, NJ 07303 is required. If certificates are
held by the shareholder, the shares may be redeemed by surrendering the
certificates with a written request for redemption along with any additional
documentation required by the Transfer Agent.

Contingent Deferred Sales Charge. Shares of the Fund which are held for
six years or more after purchase (calculated from the last day of the month
in which the shares were purchased) will not be subject to any charge upon
redemption. Shares redeemed sooner than six years after purchase will,
however, be subject to a charge upon redemption. This charge is called a
"contingent deferred sales charge" ("CDSC"), which will be a percentage of
the dollar amount of shares redeemed and will be assessed on an amount equal
to the lesser of the current market value or the cost of the shares being
redeemed. The size of this percentage will depend upon how long the shares
have been held, as set forth in the table below:

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

<PAGE>

A CDSC will not be imposed on: (i) any amount which represents an increase
in value of shares purchased within the six years preceding the redemption;
(ii) the current net asset value of shares purchased more than six years
prior to the redemption; and (iii) the current net asset value of shares
purchased through reinvestment of dividends or distributions. Moreover, in
determining whether a CDSC is applicable it will be assumed that amounts
described in (i), (ii) and (iii) above (in that order) are redeemed first.

In addition, the CDSC, if otherwise applicable, will be waived in the case
of:

(1) redemptions of shares held at the time a shareholder dies or becomes
disabled, only if the shares are: (a) registered either in the name of an
individual shareholder (not a trust), or in the names of such shareholder and
his or her spouse as joint tenants with right of survivorship; or (b) held in
a qualified corporate or self-employed retirement plan, Individual Retirement
Account ("IRA") or Custodial Account under Section 403(b)(7) of the Internal
Revenue Code ("403(b) Custodial Account"), provided in either case that the
redemption is requested within one year of the death or initial determination
of disability;

(2) redemptions in connection with the following retirement plan
distributions: (a) lump-sum or other

13
<PAGE>
distributions from a qualified corporate or self-employed retirement plan
following retirement (or, in the case of a "key employee" of a "top heavy"
plan, following attainment of age 59 1/2); (b) distributions from an IRA or
403(b) Custodial Account following attainment of age 59 1/2; or (c) a
tax-free return of an excess contribution to an IRA; and

(3) all redemptions of shares held for the benefit of a participant in a
corporate or self-employed retirement plan qualified under Section 401(k) of
the Internal Revenue Code which offers investment companies managed by the
Manager or its parent, Dean Witter InterCapital Inc., as self-directed
investment alternatives and for which Dean Witter Trust Company or Dean
Witter Trust FSB, each of which is an affiliate of the Manager, serves as
Trustee ("Eligible 401(k) Plan"), provided that either: (a) the plan
continues to be an Eligible 401(k) Plan after the redemption; or (b) the
redemption is in connection with the complete termination of the plan
involving the distribution of all plan assets to participants.

With reference to (1) above, for the purpose of determining disability,
the Distributor utilizes the definition of disability contained in Section
72(m)(7) of the Internal Revenue Code, which relates to the inability to
engage in gainful employment. With reference to (2) above, the term
"distribution" does not encompass a direct transfer of IRA, 403(b) Custodial
Account or retirement plan assets to a successor custodian or trustee. All
waivers will be granted only following receipt by the Distributor of
confirmation of the shareholder's entitlement.

Payment for Shares Redeemed or Repurchased. Payment for shares presented
for repurchase or redemption will be made by check within seven days after
receipt by the Transfer Agent of the certificate and/or written request in
good order. Such payment may be postponed or the right of redemption
suspended under unusual circumstances; e.g., when normal trading is not
taking place on the New York Stock Exchange. If the shares to be redeemed
have recently been purchased by check, payment of the redemption proceeds may
be delayed for the minimum time needed to verify that the check used for
investment has been honored (not more than fifteen days from the time of
receipt of the check by the Transfer Agent). Shareholders maintaining margin
accounts with DWR or another Selected Broker-Dealer are referred to their
account executive regarding restrictions on redemption of shares of the Fund
pledged in the margin account.

Reinstatement Privilege. A shareholder who has had his or her shares
repurchased or redeemed and has not previously exercised this reinstatement
privilege may, within thirty days after the date of the repurchase or
redemption, reinstate any portion or all of the proceeds of such repurchase
or redemption in shares of the Fund at net asset value next determined after
a reinstatement request, together with the proceeds, is received by the
Transfer Agent and receive a pro-rata credit for any CDSC paid in connection
with such repurchase or redemption.

Involuntary Redemption. The Fund reserves the right, on sixty days'
notice, to redeem, at their net asset value, the shares of any shareholder
(other than shares held in an Individual Retirement Account or Custodial
Account under Section 403(b)(7) of the Internal Revenue Code) whose shares
due to redemptions by the shareholder have a value of less than $100 or such
lesser amount as may be fixed by the Trustees or, in the case of an account
opened through EasyInvest (Service Mark), if after twelve months the
shareholder has invested less than $1,000 in the account. However, before the
Fund redeems such shares and sends the proceeds to the shareholder, it will
notify the shareholder that the value of the shares is less than the
applicable amount and allow him or her sixty days to make an additional
investment in an amount which will increase the value of his or her account
to at least the applicable amount before the redemption is processed. No CDSC
will be imposed on any involuntary redemption.

DIVIDENDS, DISTRIBUTIONS AND TAXES
- ----------------------------------------------------------------------

Dividends and Distributions. The Fund intends to pay dividends and to
distribute substantially all of the Fund's net investment income and net
short-term and net long-term capital gains, if any, at least once each year.
The Fund may, however, determine to retain all or part of any net long-term
capital gains in any year for reinvestment.

All dividends and any capital gains distributions will be paid in
additional Fund shares and automatically credited to the shareholder's
account without issuance of a share certificate unless the shareholder
requests in writing that all dividends and/or distributions be paid in cash.
(See "Shareholder Services--Automatic Investment of Dividends and
Distributions.")

<PAGE>

Taxes. Because the Fund intends to distribute all of its net investment
income and capital gains to shareholders and otherwise qualify as a regulated
investment company under Subchapter M of the Internal Revenue Code, it is not
expected that the Fund will be required to pay any federal income tax.
Shareholders who are required to pay taxes on their income will normally have
to pay federal income taxes, and any state income taxes, on the dividends and
distributions they receive from the Fund. Such dividends and distributions,
to the extent that they are derived from net investment income or net
short-term capital gains, are taxable to the shareholder as ordinary income
regardless of whether the shareholder receives such payments in additional
shares or in cash. Any dividends declared with a record date in the last
quarter of any calendar year which are paid in the following year prior to
February 1 will be deemed received by the shareholder in the prior calendar
year. Dividend payments will be eligible for the federal dividends received
deduction available to the Fund's corporate shareholders only to the extent
the aggregate dividends received by the Fund would be eligible for the
deduction if the Fund were the shareholder claiming the dividends received
deduction. In this regard, a 46-day holding period generally must be met by
the Fund and the shareholder.

Distributions of net long-term capital gains, if any, are taxable to
shareholders as long-term capital gains regardless of

14
<PAGE>
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 Fund is
subject to foreign withholding taxes and the pass through of such taxes may
not be available to shareholders.

The Fund may at times make payments from sources other than income or net
capital gains. Payments from such sources will, in effect, represent a return
of a portion of each shareholder's investment. All, or a portion, of such
payments will not be taxable to shareholders.

After the end of the calendar year, shareholders will be sent full
information on their dividends and capital gains distributions for tax
purposes. To avoid being subject to a 31% federal backup withholding tax on
taxable dividends, capital gains distributions and the proceeds of
redemptions and repurchases, shareholders' taxpayer identification numbers
must be furnished and certified as to their accuracy.

Shareholders should consult their tax advisers as to the applicability of
the foregoing to their current situation.

PERFORMANCE INFORMATION
- ----------------------------------------------------------------------

From time to time the Fund may quote its "total return" in advertisements
and sales literature. The total return of the Fund is based on historical
earnings and is not intended to indicate future performance. The "average
annual total return" of the Fund refers to a figure reflecting the average
annualized percentage increase (or decrease) in the value of an initial
investment in the Fund of $1,000 over one, five and ten years or the life of
the Fund, if less than any of the foregoing. Average annual total return
reflects all income earned by the Fund, any appreciation or depreciation of
the Fund's assets, all expenses incurred by the Fund and all sales charges
which would be incurred by redeeming shareholders, for the stated periods. It
also assumes reinvestment of all dividends and distributions paid by the
Fund.

In addition to the foregoing, the Fund may advertise its total return over
different periods of time by means of aggregate, average, and year-by-year or
other types of total return figures. Such calculations may or may not reflect
the deduction of the contingent deferred sales charge which, if reflected,
would reduce the performance quoted. The Fund may also advertise the growth
of hypothetical investments of $10,000, $50,000 and $100,000 in shares of the
Fund. The Fund from time to time may also advertise its performance relative
to certain performance rankings and indexes compiled by independent
organizations (such as mutual fund performance rankings of Lipper Analytical
Services, Inc.).

ADDITIONAL INFORMATION
- ----------------------------------------------------------------------

Voting Rights. All shares of beneficial interest of the Fund are of $0.01
par value and are equal as to earnings, assets and voting privileges.

The Fund is not required to hold Annual Meetings of Shareholders and, in
ordinary circumstances, the Fund does not intend to hold such meetings. The
Trustees may call Special Meetings of Shareholders for action by shareholder
vote as may be required by the Act or the Declaration of Trust. Under certain
circumstances, the Trustees may be removed by action of the Trustees or by
the shareholders.

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

<PAGE>

Code of Ethics. The Adviser is subject to a Code of Ethics with respect to
investment transactions in which the Adviser's officers, directors and
certain other persons have a beneficial interest to avoid any actual or
potential conflict or abuse of their fiduciary position. The Code of Ethics,
as it pertains to the TCW/DW Funds, contains several restrictions and
procedures designed to eliminate conflicts of interest including: (a)
pre-clearance of personal investment transactions to ensure that personal
transactions by employees are not being conducted at the same time as the
Adviser's clients; (b) quarterly reporting of personal securities
transactions; (c) a prohibition against personally acquiring securities in an
initial public offering, entering into uncovered short sales and writing
uncovered options; (d) a seven day "blackout period" prior or subsequent to a
TCW/DW Fund transaction during which portfolio managers are prohibited from
making certain transactions in securities which are being purchased or sold
by a TCW/DW Fund; (e) a prohibition, with respect to certain investment
personnel, from profiting in the purchase and sale, or sale and purchase, of
the same (or equivalent) securities within 60 calendar days; and (f) a
prohibition against acquiring any security which is subject to firm wide or,
if applicable, a department restriction of the Adviser. The Code of Ethics
provides that exemptive relief may be given from certain of its requirements,
upon application. The Adviser's Code of Ethics complies with regulatory
requirements and, insofar as it relates to persons associated with registered
investment companies, the 1994 Report of the Advisory Group on Personal
Investing of the Investment Company Institute.

Shareholder Inquiries. All inquiries regarding the Fund should be directed
to the Fund at the telephone numbers or address set forth on the front cover
of this Prospectus.

15
<PAGE>
TCW/DW MID-CAP EQUITY TRUST
Two World Trade Center
New York, New York 10048

TRUSTEES
John C. Argue
Richard M. DeMartini
Charles A. Fiumefreddo
John R. Haire
Dr. Manuel H. Johnson
Thomas E. Larkin, Jr.
Michael E. Nugent
John L. Schroeder
Marc I. Stern

OFFICERS
Charles A. Fiumefreddo
Chairman and Chief Executive Officer

Thomas E. Larkin, Jr.
President

Sheldon Curtis
Vice President, Secretary and
General Counsel

Douglas S. Foreman
Vice President

Christopher J. Ainley
Vice President

Thomas F. Caloia
Treasurer

CUSTODIAN
The Bank of New York
90 Washington Street
New York, New York 10286

TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
Dean Witter Trust Company
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311

INDEPENDENT ACCOUNTANTS
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036

MANAGER
Dean Witter Services Company Inc.

ADVISER
TCW Funds Management, Inc.