ALLIANCE MONEY MARKET FUND
497, 1999-12-23
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     This is filed pursuant to Rule 497(e).
     File Nos.: 33-85850 and 811-08838


For more information about the Portfolios, the following documents are
available upon request:

- - ANNUAL/SEMI-ANNUAL REPORTS TO SHAREHOLDERS
The Portfolios' annual and semi-annual reports to shareholders contain
additional information on the Portfolios' investments.

- - STATEMENT OF ADDITIONAL INFORMATION (SAI)
The Portfolios have an SAI, which contains more detailed information about the
Portfolios, including their operations and investment policies. The Portfolios'
SAI is incorporated by reference into (and is legally part of) this prospectus.

You may request a free copy of a current annual/semi-annual report or the SAI
by contacting your Introducing Financial Institution, or by contacting Alliance:

BY MAIL:           C/O ALLIANCE FUND SERVICES, INC.
                   P.O. BOX 1520, SECAUCUS, NJ 07096

BY PHONE:          For Information:   (800) 824-1916
                   For Literature:    (800) 824-1916

Or you may view or obtain these documents from the SEC:

IN PERSON:         at the SEC's Public Reference Room in Washington, D.C.

BY PHONE:          1-800-SEC-0330

BY MAIL:           Public Reference Section
                   Securities and Exchange Commission
                   Washington, DC 20549-6009
                   (duplicating fee required)

ON THE INTERNET:   www.sec.gov

You also may find more information about Alliance on the Internet at:
www.Alliancecapital.com.


TABLE OF CONTENTS
RISK/RETURN SUMMARY                                       2
   Performance and Bar Chart Information                  2
FEES AND EXPENSES OF THE PORTFOLIOS                       4
OTHER INFORMATION ABOUT THE PORTFOLIOS'
OBJECTIVES, STRATEGIES, AND RISKS 4
   Investment Objectives and Strategies                   4
   Prime Portfolio                                        5
   Government Portfolio                                   5
   General Municipal Portfolio                            5
   Risk Considerations                                    6
MANAGEMENT OF THE PORTFOLIOS                              7
PURCHASE AND SALE OF SHARES                               8
   How The Portfolios Value Their Shares                  8
   How To Buy Shares                                      8
   How To Sell Shares                                     8
DIVIDENDS, DISTRIBUTIONS AND TAXES                        9
DISTRIBUTION ARRANGEMENTS                                 9
FINANCIAL HIGHLIGHTS                                     10


001 (Rev. 10/99)CLF-57155




MORGAN STANLEY DEAN WITTER
                   0NLINE
FEATURING...

ALLIANCE MONEY MARKET FUND
    - PRIME PORTFOLIO
    - GOVERNMENT PORTFOLIO
    - GENERAL MUNICIPAL PORTFOLIO

PROSPECTUS
APRIL 1, 1999

MORGAN STANLEY DEAN WITTER ONLINE INC.
333 MARKET STREET, 25TH FLOOR
SAN FRANCISCO, CA94105
WWW.ONLINE.MSDW.COM
MEMBER NASD/SIPC

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.




This prospectus describes three Portfolios of the Alliance Money Market Fund.
The Portfolios' investment adviser is Alliance Capital Management L.P., a
global investment manager providing diversified services to institutions and
individuals through a broad line of investments including more than 100 mutual
funds.


RISK/RETURN SUMMARY

The following is a summary of certain key information about the Portfolios. You
will find additional information about the Portfolios, including a detailed
description of the risks of an investment in each Portfolio, after this
summary. This prospectus has additional descriptions of the Portfolios'
investments in the discussion under "Other Information About the Portfolios'
Objectives, Strategies, and Risks." That section also includes more information
about the Portfolios, their investments, and related risks.

OBJECTIVES: The investment objectives of each Portfolio are--in the following
order of priority--safety of principal, excellent liquidity and, to the extent
consistent with the first two objectives, maximum current income (exempt from
income taxes to the extent described below in the case of the General Municipal
Portfolio).

PRINCIPAL INVESTMENT STRATEGY: The Portfolios are "money market funds" that
seek to maintain a stable net asset value of $1.00 per share. Each Portfolio
pursues its objectives by maintaining a portfolio of high-quality money market
securities.

PRINCIPAL RISKS: The principal risks of investing in the Portfolios are:

- - INTEREST RATE RISK This is the risk that changes in interest rates will
affect the yield or value of the Portfolios' investments in debt securities.

- - CREDIT RISK This is the risk that the issuer or guarantor of a debt security,
or the counterparty to a derivatives contract, will be unable or unwilling to
make timely interest or principal payments, or to otherwise honor its
obligations. The degree of risk for a particular security may be reflected in
its credit rating. Credit risk includes the possibility that any of the
Portfolios' investments will have its credit ratings downgraded.

ANOTHER IMPORTANT THING FOR YOU TO NOTE:
An investment in the Portfolios is not a deposit in a bank and is not insured
or guaranteed by the Federal Deposit Insurance Corporation or any other
government agency. Although the Portfolios seek to preserve the value of your
investment at $1.00 per share, it is possible to lose money by investing in the
Portfolios.

PERFORMANCE AND BAR CHART INFORMATION
For each Portfolio, the Risk/Return Summary includes a table showing the
Portfolio's average annual returns and a bar chart showing the Portfolio's
annual returns. The table and the bar chart provide an indication of the
historical risk of an investment in each Portfolio by showing:

- - the Portfolio's average annual returns for one year and the life of the
Portfolio; and

- - changes in the Portfolio's performance from year to year over the life of the
Portfolio.

A Portfolio's past performance does not necessarily indicate how it will
perform in the future.

You may obtain current yield information for any Portfolio by calling
1-800-221-9513 or your Introducing Financial Institution.


2


PRIME PORTFOLIO

PERFORMANCE TABLE
                                              SINCE
                              1 YEAR       INCEPTION*
- ------------------------------------------------------
                               4.71%          4.69%


BAR CHART
[GRAPHIC OMITTED]

   n/a   n/a   n/a   n/a   n/a   n/a   n/a   4.59% 4.78% 4.71%
    89    90    91    92    93    94    95    96    97    98


During the periods shown in the bar chart, the highest return for a quarter was
1.17% (quarter ending March 31, 1998) and the lowest return for a quarter was
1.10% (quarter ending June 30, 1996).


GOVERNMENT PORTFOLIO
PERFORMANCE TABLE
                                              SINCE
                              1 YEAR       INCEPTION*
- ------------------------------------------------------
                               4.62%          4.61%

BAR CHART
[GRAPHIC OMITTED]

   n/a   n/a   n/a   n/a   n/a   n/a   n/a   4.53% 4.67% 4.62%
    89    90    91    92    93    94    95    96    97    98


During the periods shown in the bar chart, the highest return for a quarter was
1.16% (quarter ending March 31, 1998) and the lowest return for a quarter was
1.07% (quarter ending December 31, 1998).

GENERAL MUNICIPAL PORTFOLIO
PERFORMANCE TABLE
                                              SINCE
                              1 YEAR       INCEPTION**
- ------------------------------------------------------
                               2.73%          2.81%

BAR CHART

[GRAPHIC OMITTED]

   n/a   n/a   n/a   n/a   n/a   n/a   n/a   2.78% 2.93% 2.73%
    89    90    91    92    93    94    95    96    97    98


During the periods shown in the bar chart, the highest return for a quarter was
 .77% (quarter ending June 30, 1997) and the lowest return for a quarter was
 .65% (quarter ending September 30, 1998).


*    INCEPTION DATE:12/29/95.

**   INCEPTION DATE:12/13/95.


3


FEES AND EXPENSES OF THE PORTFOLIOS

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Portfolios.

SHAREHOLDER TRANSACTION EXPENSES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)
The Portfolios have no sales load on purchases or reinvested dividends,
deferred sales loads, or redemption or exchange fees.

ANNUAL PORTFOLIO OPERATING EXPENSES (EXPENSES THAT ARE DEDUCTED FROM PORTFOLIO
ASSETS) AND EXAMPLE

                                         ANNUAL PORTFOLIO OPERATING EXPENSES
                                         ------------------------------------
                                                                    GENERAL
                                           PRIME      GOVERNMENT   MUNICIPAL
                                          --------    ----------   ---------
  Management Fees                            .50%        .50%        .50%
  12b-1 Fees                                 .45%        .45%        .45%
  Other Expenses                             .11%        .19%        .22%
  Total Portfolio Operating Expenses        1.06%       1.14%       1.17%
  Waiver and/or Expense Reimbursement*      (.06)%      (.14)%      (.17)%
  Net Expenses                              1.00%       1.00%       1.00%


*    Reflects Alliance's contractual waiver of a portion of its advisory fee
and/or reimbursement of a portion of the Portfolio's operating expenses.


EXAMPLES
The examples are to help you compare the cost of investing in a Portfolio with
the cost of investing in other funds. They assume that you invest $10,000 in
the Portfolio for the time periods indicated and then redeem all of your shares
at the end of those periods. They also assume that your investment has a 5%
return each year, that the Portfolio's operating expenses stay the same and
that all dividends and distributions are reinvested. Your actual costs may be
higher or lower.

                                                           GENERAL
                              PRIME       GOVERNMENT      MUNICIPAL
                            --------      ----------      ---------
  1 Year                     $  102         $  102         $  102
  3 Years                    $  318         $  318         $  318
  5 Years                    $  552         $  552         $  552
  10 Years                   $1,225         $1,225         $1,225


OTHER INFORMATION ABOUT THE PORTFOLIOS' OBJECTIVES, STRATEGIES, AND RISKS

This section of the prospectus provides a more complete description of the
principal investment objectives, strategies, and risks of the Portfolios.

Please note:

- - Additional descriptions of each Portfolio's strategies and investments, as
well as other strategies and investments not described below, may be found in
the Portfolios' Statement of Additional Information or SAI.

- - There can be no assurance that any Portfolio will achieve its investment
objectives.

INVESTMENT OBJECTIVES AND STRATEGIES

The Portfolios' investment objectives are--in the following order of
priority--safety of principal, excellent liquidity and, to the extent
consistent with the first two objectives, maximum current income (exempt from
Federal income taxes to the extent described below in the case of the General
Municipal Portfolio). As money mar-


4


ket funds, the Portfolios must meet the requirements of SEC Rule 2a-7. The Rule
imposes strict requirements on the investment quality, maturity, and
diversification of the Portfolios' investments. Under Rule 2a-7, the
Portfolios' investments must each have a remaining maturity of no more than 397
days and the Portfolios must maintain an average weighted maturity that does
not exceed 90 days.

PRIME PORTFOLIO
The Portfolio pursues its objectives by investing in high-quality money market
securities. The Portfolio may invest in:

- - marketable obligations issued or guaranteed by the U.S. Government or one of
its agencies or instrumentalities;

- - certificates of deposit, bankers' acceptances, and interest-bearing savings
deposits issued or guaranteed by banks or savings and loans associations
(including foreign branches of U.S. banks or U.S. or foreign branches of
foreign banks) having total assets of more than $1 billion;

- - high-quality commercial paper issued by U.S. or foreign companies (rated or
determined by the Adviser to be of comparable quality) and participation
interests in loans extended to such companies;

- - adjustable rate obligations;

- - restricted securities (i.e., securities subject to legal or contractual
restrictions on resale);

- - asset-backed securities; and

- - repurchase agreements that are fully collateralized.

The Portfolio may invest up to 25% of its total assets in money market
instruments issued by foreign branches of foreign banks. To the extent the
Portfolio makes such investments, consideration will be given to their domestic
marketability, the lower reserve requirements generally mandated for overseas
banking operations, the possible impact of interruptions in the flow of
international currency transactions, potential political and social instability
or expropriation, imposition of foreign taxes, the lower level of government
supervision of issuers, the difficulty in enforcing contractual obligations,
and the lack of uniform accounting and financial reporting standards.

The Portfolio does not invest more than 25% of its assets in securities of
issuers in any one industry except for U.S. Government securities or
certificates of deposit and bankers' acceptances issued or guaranteed by, or
interest bearing savings deposits maintained at, banks and savings institutions
and loan associations (including foreign branches of U.S. banks and U.S.
branches of foreign banks).

GOVERNMENT PORTFOLIO
The Portfolio pursues its objectives by investing in high-quality money market
securities. The Government Portfolio may invest in:

- - marketable obligations issued or guaranteed by the U.S. Government or one of
its agencies or instrumentalities;

- - adjustable rate obligations;

- - repurchase agreements that are fully collateralized; and

- - restricted securities (i.e., securities subject to legal and contractual
restrictions on resale).

The Government Portfolio may commit up to 15% of its net assets to the purchase
of when-issued U.S. Government securities.

GENERAL MUNICIPAL PORTFOLIO
The General Municipal Portfolio seeks maximum current income that is exempt
from Federal income taxes by investing principally in a diversified portfolio
of high-quality municipal securities. The Portfolio's income may be subject to
state or local income taxes.

The Portfolio may invest without limit in tax-exempt municipal securities that
are subject to the Federal alternative minimum tax (the "AMT").

MUNICIPAL SECURITIES. The General Municipal Portfolio's investments in
municipal securities include municipal notes and short-term municipal bonds.
Municipal notes are generally used to provide for short-term capital needs and
generally have maturities of 397 days or less. Examples include tax
anticipation and revenue anticipation notes, which are generally issued in
anticipation of various seasonal revenues, bond anticipation notes, and
tax-exempt commercial paper. Short-term municipal bonds may include general
obligation bonds, which are secured by the issuer's pledge of its faith,
credit, and taxing power for payment of principal and interest, and revenue
bonds, which are generally paid from the revenues of a particular facility or a
specific excise or other source.


5


The General Municipal Portfolio may invest in variable rate obligations whose
interest rates are adjusted either at predesignated periodic intervals or
whenever there is a change in the market rate to which the security's interest
rate is tied. These adjustments tend to minimize changes in the market value of
the obligation and, accordingly, enhance the ability of the Portfolio to
maintain a stable net asset value. Variable rate securities purchased may
include participation interests in industrial development bonds backed by
letters of credit of Federal Deposit Insurance Corporation member banks having
total assets of more than $1 billion.

The General Municipal Portfolio may invest in restricted securities (i.e.,
securities subject to legal or contractual restrictions on resale).

The General Municipal Portfolio's municipal securities at the time of purchase
are rated within the two highest quality ratings of Moody's or Standard &
Poor's or judged by the Adviser to be of comparable quality. Securities also
must meet credit standards applied by the Adviser.

The quality and liquidity of the General Municipal Portfolio's investments in
municipal securities are supported by credit and liquidity enhancements, such
as letters of credit, from third party financial institutions. The Portfolio
continuously monitors the credit quality of third parties; however, changes in
the credit quality of these financial institutions could cause the Portfolio's
investments backed by that institution to lose value and affect the Portfolio's
share price.

The General Municipal Portfolio also may invest in stand-by commitments, which
may involve certain expenses and risks, but stand-by commitments are not
expected to comprise more than 5% of the Portfolio's net assets. The Portfolio
may commit up to 15% of its net assets to the purchase of when-issued
securities. The Portfolio's Custodian will maintain liquid assets having value
equal to, or greater than, these commitments. The price of when-issued
securities, which is generally expressed in yield terms, is fixed at the time
the commitment to purchase is made, but delivery and payment for these
securities takes place at a later time. Normally, the settlement date occurs
from within ten days to one month after the purchase of the issue.

TAXABLE INVESTMENTS. The General Municipal Portfolio may invest in taxable
investments including obligations of the U.S. Government and its agencies,
high-quality certificates of deposit and bankers' acceptances, prime commercial
paper, and repurchase agreements.

RISK CONSIDERATIONS
The Portfolios' primary risks are interest rate risk and credit risk. Because
the Portfolios invest in short-term securities, a decline in interest rates
will affect the Portfolios' yields as these securities mature or are sold and
the Portfolios purchase new short-term securities with lower yields. Generally,
an increase in interest rates causes the value of a debt instrument to
decrease. The change in value for shorter-term securities is usually smaller
than for securities with longer maturities. Because the Portfolios invest in
securities with short maturities and seek to maintain a stable net asset value
of $1.00 per share, it is possible, though unlikely, that an increase in
interest rates would change the value of your investment.

Credit risk is the possibility that a security's credit rating will be
downgraded or that the issuer of the security will default (fail to make
scheduled interest and principal payments). The Portfolios invest in
highly-rated securities to minimize credit risk.

The Portfolios may invest up to 10% of their net assets in illiquid securities.
Investments in illiquid securities may be subject to liquidity risk, which is
the risk that, under certain circumstances, particular investments may be
difficult to sell at an advantageous price. Illiquid restricted securities also
are subject to the risk that the Portfolio may be unable to sell the security
due to legal or contractual restrictions on resale.

The Portfolios' investments in U.S. dollar-denominated obligations (or credit
and liquidity enhancements) of foreign banks, foreign branches of U.S. banks,
U.S. branches of foreign banks, and commercial paper of foreign companies may
be subject to foreign risk. Foreign securities issuers are usually not subject
to the same degree of regulation as U.S. issuers. Reporting, accounting, and
auditing standards of foreign countries differ, in some cases, significantly
from U.S. standards. Foreign risk includes nationalization, expropriation or
confiscatory taxation, political changes or diplomatic developments that could
adversely affect a Portfolio's investments.

The Portfolios also are subject to management risk because they are actively
managed portfolios. Alliance will apply its investment techniques and risk
analyses in


6


making investment decisions for the Portfolios, but there is no guarantee that
its techniques will produce the intended result.

The General Municipal Portfolio faces municipal market risk. This is the risk
that special factors may adversely affect the value of municipal securities and
have a significant effect on the value of the Portfolio's investments. These
factors include political or legislative changes, uncertainties related to the
tax status of municipal securities, or the rights of investors in these
securities. The Portfolio's investments in certain municipal securities with
principal and interest payments that are made from the revenues of a specific
project or facility, and not general tax revenues, may have increased risks.
Factors affecting the project or facility, such as local business or economic
conditions, could have a significant effect on the project's ability to make
payments of principal and interest on these securities.

YEAR 2000. Many computer systems and applications in use today process
transactions using two-digit date fields for the year of the transaction,
rather than the full four digits. If these systems are not modified or
replaced, transactions occurring after 1999 could be processed as year "1900",
which could result in processing inaccuracies and computer system failures.
This is commonly known as the Year 2000 problem. The failure of any of the
computer systems employed by the Portfolios' major service providers to process
Year 2000 related information properly could have a significant negative impact
on the Portfolios' operations and the services that are provided to the
Portfolios' shareholders. In addition, to the extent that the operations of
issuers of securities held by the Portfolios are impaired by the Year 2000
problem, or prices of securities held by the Portfolios decline as a result of
real or perceived problems relating to the Year 2000, the value of the
Portfolios' shares may be materially affected.

With respect to the Year 2000 problem, the Portfolios have been advised that
Alliance, each Portfolio's investment adviser, Alliance Fund Distributors, Inc.
("AFD"), each Portfolio's principal underwriter, and Alliance Fund Services,
Inc. ("AFS"), each Portfolio's registrar, transfer agent and dividend
disbursing agent (collectively, "Alliance"), began to address the Year 2000
issue several years ago in connection with the replacement or upgrading of
certain computer systems and applications. During 1997, Alliance began a formal
Year 2000 initiative, which established a structured and coordinated process to
deal with the Year 2000 issue. Alliance reports that it has completed its
assessment of the Year 2000 issue on its domestic and international computer
systems and applications. Currently, management of Alliance expects that the
required modifications for the majority of its significant systems and
applications that will be in use on January 1, 2000, will be completed and
tested by early 1999. Full integration testing of these systems and testing of
interfaces with third-party suppliers will continue through 1999. At this time,
management of Alliance believes that the costs associated with resolving this
issue will not have a material adverse effect on its operations or on its
ability to provide the level of services it currently provides to the
Portfolios.

The Portfolios and Alliance have been advised by the Portfolios' Custodian and
Administrator that they are each in the process of reviewing their systems with
the same goals. As of the date of this prospectus, the Portfolios and Alliance
have no reason to believe that the Custodian or Administrator will be unable to
achieve these goals.


MANAGEMENT OF THE PORTFOLIOS

The Portfolios' Adviser is Alliance Capital Management, L.P., 1345 Avenue of
the Americas, New York, NY 10105. Alliance is a leading international
investment adviser supervising client accounts with assets as of December 31,
1998 totaling more than $286 billion (of which approximately $118 billion
represented assets of investment companies). Alliance's clients are primarily
major corporate employee benefit plans, public employee retirement systems,
investment companies, foundations, and endowment funds. The 54 registered
investment companies, with more than 118 separate portfolios, managed by
Alliance currently have over 3.6 million shareholder accounts. As of December
31, 1998, Alliance was retained as investment manager for over 35 of the
FORTUNE 100 companies.

Under its Advisory Agreement with the Portfolios, Alliance provides investment
advisory services and order placement facilities for the Portfolios. For these
advisory services, each Portfolio paid Alliance, for the fiscal year


7


ended November 30, 1998, as a percentage of average daily net assets:


                                               FEE AS A PERCENTAGE OF
PORTFOLIO                                     AVERAGE DAILY NET ASSETS*
- -----------------------------------------------------------------------
Prime Portfolio                                          .44%
Government Portfolio                                     .36%
General Municipal Portfolio                              .33%


*    Fees are stated net of waivers and/or reimbursements. See the "Fee Table"
at the beginning of the prospectus for more information about fee waivers.

ADMINISTRATOR
ADP Financial Information Services, Inc., a wholly-owned subsidiary of
Automatic Data Processing, Inc., serves as administrator of the Fund, on behalf
of the Portfolios. The Administrator performs or arranges for the performance
of certain services, mainly remote processing services through its propriety
shareholder accounting system. ADP is entitled to receive from each Portfolio a
fee computed daily and paid monthly at a maximum annual rate equal to .05% of
such Portfolio's average daily net assets. ADP may, from time to time,
voluntarily waive all or a portion of its fees payable to it under the
Administration Agreement. ADP shall not have any responsibility or authority
for any Portfolio's investments, the determination of investment policy, or for
any matter pertaining to the distribution of Portfolio shares.


PURCHASE AND SALE OF SHARES

HOW THE PORTFOLIOS VALUE THEIR SHARES
Each of the Portfolios' net asset value or NAV is expected to be constant at
$1.00 per share, although this value is not guaranteed. The NAV is calculated
at 12:00 Noon and 4:00 p.m., Eastern time, each day the New York Stock Exchange
(NYSE) is open for business. To calculate NAV, a Portfolio's assets are valued
and totaled, liabilities are subtracted, and the balance, called net assets, is
divided by the number of shares outstanding. Each Portfolio values its
securities at their amortized cost. This method involves valuing an instrument
at its cost and thereafter applying a constant amortization to maturity of any
discount or premium, regardless of the impact of fluctuating interest rates on
the market value of the investment.

HOW TO BUY SHARES

- - INITIAL INVESTMENT
Contact Morgan Stanley Dean Witter Online to open an account in the Prime,
Government or General Municipal Portfolio. Balances will appear on your monthly
brokerage statement.

- - SUBSEQUENT INVESTMENTS

BY CHECK THROUGH MORGAN STANLEY DEAN WITTER ONLINE:
Mail or deliver your check, payable to "Morgan Stanley Dean Witter Online"
which will deposit into the Portfolio(s). Please designate the appropriate
Portfolio(s) and indicate your brokerage account number on the check or draft.

BY SWEEP:
Morgan Stanley Dean Witter Online has available an automatic "sweep" for
customers in the Prime, Government or General Municipal Portfolio of Alliance
Money Market Fund. If you request the sweep arrangement, all cash balances of
$1.00 or more are moved into one of the Portfolios on a daily basis. Sales
proceeds from trades will be swept into the designated Portfolio on settlement
date.

HOW TO SELL SHARES
You may "redeem" your shares (i.e., sell your shares to the Portfolio) on any
day the NYSE is open through your Introducing Financial Institution. Your sales
price will be the next-determined NAV after the Portfolio receives your sales
request in proper form. Normally, redemption proceeds will be wired or mailed
to you either the same or the next business day, but generally no later than
seven days.

- - BY CONTACTING MORGAN STANLEY DEAN WITTER ONLINE
Instruct Morgan Stanley Dean Witter Online to order a withdrawal from your
Portfolio account and issue a check payable to you.


8


- - BY SWEEP
Morgan Stanley Dean Witter Online's automatic "sweep" moves money from your
money market account automatically to cover securities purchases in your
brokerage account.

- - BY CHECKWRITING
With this service, you may write checks made payable to any payee. First, you
must fill out the Signature Card which you can obtain from Morgan Stanley Dean
Witter Online. The checkwriting service enables you to receive the daily
dividends declared on the shares to be redeemed until the day that your check
is presented for payment. You can not write checks for more than the principal
balance (not including any accrued dividends) in your account.

OTHER
The Portfolios have two transaction times each business day, 12:00 Noon and
4:00 p.m., Eastern time. New investments represented by Federal funds or bank
wire monies received by The Bank of New York at any time during a day prior to
4:00 p.m. are entitled to the full dividend to be paid to shareholders for that
day. Shares do not earn dividends on the day you redeem shares regardless of
whether the redemption order is received before or after 12:00 Noon.


DIVIDENDS, DISTRIBUTIONS AND TAXES

Each of the Portfolios' net income is paid daily to shareholders and
automatically invested in additional shares in your account. The Portfolios
expect that their distributions will primarily consist of net income or, if
any, short-term capital gains as opposed to long-term capital gains.

PRIME PORTFOLIO AND GOVERNMENT PORTFOLIO
For Federal income tax purposes, the Prime and Government Portfolios' dividend
distributions of net income (or short-term taxable gains) will be taxable to
you as ordinary income. Any long-term capital gains distributions may be
taxable to you as long-term capital gains. The Portfolios' distributions also
may be subject to certain state and local taxes.

GENERAL MUNICIPAL PORTFOLIO
Distributions of tax-exempt interest income from this Portfolio are not subject
to Federal income tax (other than the AMT), but may be subject to state or
local income taxes. Any exempt-interest dividends derived from interest on
municipal securities subject to the AMT will be a specific preference item for
purposes of the Federal individual and corporate AMT. Distributions out of
taxable interest income, other investment income and short-term capital gains,
are taxable to you as ordinary income and distributions of long-term capital
gains, if any, are taxable as long-term taxable gains irrespective of the
length of time you may have held your shares.

Consult your tax adviser as to the tax consequences of an investment in the
Portfolios, including the possible applicability of the AMT to a portion of the
distributions.

Each year shortly after December 31, the Portfolio will send you tax
information stating the amount and type of all its distributions for the year.

The sale of Portfolio shares is a taxable transaction for Federal income tax
purposes.


DISTRIBUTION ARRANGEMENTS

The Portfolios have adopted a plan under SEC Rule 12b-1 that allows the
Portfolios to pay asset-based sales charges or distribution and service fees
for the distribution and sale of their shares. The Portfolios pay these fees in
the amount of 0.45% as a percent of aggregate average daily net assets. Because
these fees are paid out of the Portfolios' assets on an on-going basis, over
time these fees will increase the cost of your investment and may cost you more
than paying other types of sales fees.


9


FINANCIAL HIGHLIGHTS

The financial highlights table is intended to help you understand a Portfolio's
financial performance for the period of the Portfolio's operations. Certain
information reflects financial information for a single Portfolio share. The
total return in the table represents the rate that an investor would have
earned (or lost) on an investment in the Portfolio (assuming reinvestment of
all dividends and distributions). The information has been audited by McGladrey
& Pullen LLP, the Portfolios' independent auditors, whose report, along with
the Portfolios' financial statements, appears in the SAI, which is available
upon request.


                                                   PRIME PORTFOLIO
                                         ------------------------------------
                                                                  DECEMBER 29,
                                                                     1995(A)
                                          YEAR ENDED NOVEMBER 30,      TO
                                         ------------------------  NOVEMBER 30,
                                            1998         1997         1996
                                         -----------  -----------  -----------
Net asset value, beginning of period       $ 1.00       $ 1.00       $ 1.00

INCOME FROM INVESTMENT OPERATIONS
Net investment income (b)                    .047         .046         .041
Net gains or losses on securities            .000         .000         .000
Total from investment operations             .047         .046         .041

LESS: DISTRIBUTIONS
Dividends                                   (.047)       (.046)       (.041)
Distributions                                .000         .000         .000
Total distributions                         (.047)       (.046)       (.041)
Net asset value, end of period             $ 1.00       $ 1.00       $ 1.00

TOTAL RETURN
Total investment return based on net
  asset value (c)                            4.77%        4.75%        4.57%(d)

RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)      $682       $3,298       $2,772
Ratio to average net assets of:
  Expenses, net of waivers and
    reimbursements                           1.00%        1.00%        1.00%(e)
  Expenses, before waivers and
    reimbursements                           1.06%        1.06%        1.23%(e)
  Net investment income (b)                  4.69%        4.65%        4.50%(e)


(a)  Commencement of operations.

(b)  Net of expenses reimbursed or waived by the Adviser.

(c)  Total investment return is calculated assuming an initial investment made
at the net asset value at the beginning of the period, reinvestment of all
dividends and distributions at net asset value during the period, and
redemption on the last day of period.

(d)  The total return is not annualized.

(e)  Annualized.


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                                                GOVERNMENT PORTFOLIO
                                         ------------------------------------
                                                                   DECEMBER 29,
                                                                     1995(A)
                                          YEAR ENDED NOVEMBER 30,      TO
                                         ------------------------  NOVEMBER 30,
                                            1998         1997         1996
                                         -----------  -----------  -----------
Net asset value, beginning of period       $ 1.00       $ 1.00       $ 1.00

INCOME FROM INVESTMENT OPERATIONS
Net investment income (b)                    .046         .045         .041
Net gains or losses on securities            .000         .000         .000
Total from investment operations             .046         .045         .041

LESS: DISTRIBUTIONS
Dividends                                   (.046)       (.045)       (.041)
Distributions                                .000         .000         .000
Total distributions                         (.046)       (.045)       (.041)
Net asset value, end of period             $ 1.00       $ 1.00       $ 1.00

TOTAL RETURN
Total investment return based on net
  asset value (c)                            4.67%        4.64%        4.51%(d)

RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)       $42         $124         $100
Ratio to average net assets of:
  Expenses, net of waivers and
    reimbursements                           1.00%        1.00%        1.00%(e)
  Expenses, before waivers and
    reimbursements                           1.14%        1.25%        1.42%(e)
  Net investment income (b)                  4.60%        4.54%        4.45%(e)


(a)  Commencement of operations.

(b)  Net of expenses reimbursed or waived by the Adviser.

(c)  Total investment return is calculated assuming an initial investment made
at the net asset value at the beginning of the period, reinvestment of all
dividends and distributions at net asset value during the period, and
redemption on the last day of period.

(d)  The total return is not annualized.

(e)  Annualized.


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                                             GENERAL MUNICIPAL PORTFOLIO
                                         ------------------------------------
                                                                   DECEMBER 13,
                                                                     1995(A)
                                          YEAR ENDED NOVEMBER 30,      TO
                                         ------------------------  NOVEMBER 30,
                                            1998         1997         1996
                                         -----------  -----------  -----------
Net asset value, beginning of period       $ 1.00       $ 1.00       $ 1.00

INCOME FROM INVESTMENT OPERATIONS
Net investment income (b)                    .027         .029         .027
Net gains or losses on securities            .000         .000         .000
Total from investment operations             .027         .029         .027

LESS: DISTRIBUTIONS
Dividends                                   (.027)       (.029)       (.027)
Distributions                                .000         .000         .000
Total distributions                         (.027)       (.029)       (.027)
Net asset value, end of period             $ 1.00       $ 1.00       $ 1.00

TOTAL RETURN
Total investment return based on net
  asset value (c)                            2.76%        2.92%        2.79%(d)

RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)       $44         $137         $123
Ratio to average net assets of:
  Expenses, net of waivers and
    reimbursements                           1.00%        1.00%        1.00%(e)
  Expenses, before waivers and
    reimbursements                           1.17%        1.21%        1.39%(e)
  Net investment income (b)                  2.74%        2.87%        2.76%(e)


(a)  Commencement of operations.

(b)  Net of expenses reimbursed or waived by the Adviser.

(c)  Total investment return is calculated assuming an initial investment made
at the net asset value at the beginning of the period, reinvestment of all
dividends and distributions at net asset value during the period, and
redemption on the last day of period.

(d)  The total return is not annualized.

(e)  Annualized.


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