<PAGE>

                                WARRANT AGREEMENT

         AGREEMENT, dated as of this    day of         , 2000, by and between
Activeworlds.com, Inc., a Delaware corporation (the "Company"), and         , as
Warrant Agent (the "Warrant Agent").

                              W I T N E S S E T H:
                               - - - - - - - - - -
         WHEREAS, in connection with a public offering of 1,200,000 units (the
"Units"), each Unit consisting of one share of common stock, par value $.001 per
share ("Common Stock"), and a Series B Redeemable Common Stock Purchase Warrant
(collectively, the "Warrants") to purchase one share of Common Stock, pursuant
to an underwriting agreement (the "Underwriting Agreement") dated as of , 2000,
between the Company and the several underwriters named therein of which HD Brous
& Co., Inc. ("Brous") Solid ISG Capital Markets, LLC ("Solid ISG") and First
Colonial Securities, Inc. ("First Colonial") are the representatives (the
"Representatives"), the Company may issue Warrants to purchase up to One Million
Two Hundred Thousand (1,200,000) shares of Common Stock; and
         WHEREAS, in connection with the issuance, pursuant to the Underwriting
Agreement, to the Representatives and their designees of options (the "Unit
Purchase Options" and each a "Unit Purchase Option") to purchase up to one
hundred twenty thousand (120,000) Units, the Company may issue Warrants to
purchase up to one hundred twenty thousand (120,000) shares of Common Stock; and
         WHEREAS, the Company desires the Warrant Agent to act on behalf of the
Company, and the Warrant Agent is willing to so act, in connection with the
issuance, registration, transfer, exchange and redemption of the Warrants, as
hereinafter defined, the issuance of certificates representing the Warrants, the
exercise of the Warrants, and the rights of the holders thereof;
         NOW, THEREFORE, in consideration of the premises and the mutual
agreements hereinafter set forth and for the purpose of defining the terms and
provisions of the Warrants and the certificates representing the Warrants and
the respective rights and obligations thereunder of the Company, the holders of
certificates representing the Warrants and the Warrant Agent, the parties hereto
agree as follows:
               1. Definitions.  As used in this Agreement, the following terms
shall have the following meanings, unless the context shall otherwise require:
                  (a) "Corporate Office" shall mean the office of the Warrant
Agent (or its successor) at which at any particular time its principal business
shall be administered, which office is located at the date of this Agreement
at                       .
                  (b) "Effective Date" shall mean the date that the Registration
Statement is declared effective by the Securities and Exchange Commission (the
"Commission").


<PAGE>

                  (c) "Exercise Date" shall mean, as to any Warrant, the date on
which the Warrant Agent shall have received both (a) the Warrant Certificate
representing such Warrant, with the exercise form thereon duly executed by the
Registered Holder thereof or his attorney duly authorized in writing, and (b)
payment in cash, or by official bank or certified check made payable to the
Company, of an amount in lawful money of the United States of America equal to
the Purchase Price; provided, however, that, subject to Paragraph 4 of this
Agreement, if payment shall be made by personal or corporate check, the exercise
of the Warrant shall not be effective until the Warrant Agent shall be satisfied
that the check shall have cleared; provided, further, that if such payment is
made prior to the Warrant Expiration Date or the expiration of a period during
which a reduced Purchase Price is in effect pursuant to Paragraph 9(f) of this
Agreement and the check shall not have cleared until after the Warrant
Expiration Date or such other date, then the Warrant shall be deemed to have
been exercised immediately prior to 5:00 P.M. New York City time on the Warrant
Expiration Date.
                  (d) "Purchase Price" shall mean the purchase price per share
to be paid upon exercise of each Warrant in accordance with the terms hereof,
which price shall be and /100 dollars ($   ) per share for the Warrants, subject
to adjustment from time to time pursuant to the provisions of Paragraph 9 of
this Agreement.
                  (e) "Redemption Price" shall mean the price at which the
Company may, at its option, redeem the Warrants, in accordance with the terms of
this Agreement, which price shall be ten cents ($.10) per Warrant. The
Redemption Price shall not be subject to adjustment pursuant to this Agreement.
                  (f) "Registration Statement" shall mean the Company's
registration statement on Form SB-2, File No. 333-85095, which was declared
effective by the Commission on           , 2000.
                  (g) "Registered Holder" shall mean, as to any Warrant and as
of any particular date, the person in whose name the certificate representing
the Warrant shall be registered on that date on the books maintained by the
Warrant Agent pursuant to Paragraph 6 of this Agreement.
                  (h) "Transfer Agent" shall mean           , as the Company's
transfer agent, or its authorized successor, as such.
                  (i) "Warrant Certificate" shall mean the certificate for the
Warrants in the form attached as Exhibit A to this Agreement.
                  (j) "Warrant Expiration Date" shall mean 5:00 P.M. New York
City time on the first to occur of (i)          , 2005, or (ii) the business day
immediately preceding the Redemption Date, as defined in Paragraph 8(c) of this
Agreement; provided, that if such date shall in the State

                                      - 2 -

<PAGE>


of New York be a holiday or a day on which banks are authorized or required to
close, the Warrant Expiration Date shall be the next day which is not such a
date. Upon notice to all warrant holders the Company shall have the right to
extend the Warrant Expiration Date.
                  (k) "Warrant Shares" shall mean the shares of Common Stock
issuable upon exercise of the Warrants.
               2. Warrants and Issuance of Warrants Certificates.
                  (a) Each Warrant initially shall entitle the Registered Holder
of the Warrant Certificate representing such Warrant to purchase, upon the
exercise thereof, in accordance with the terms of this Agreement, subject to
modification and adjustment as provided in Paragraph 9 of this Agreement, such
number of shares of Common Stock as is set forth on the certificate representing
the Warrants.
                  (b) Upon execution of this Agreement, Warrant Certificates
representing the number of Warrants initially issuable pursuant to the
Underwriting Agreement shall be executed by the Company and delivered to the
Warrant Agent. Upon written order of the Company signed by its President or
Chairman or a Vice President and by its Secretary or an Assistant Secretary or
its Treasurer or an Assistant Treasurer, the Warrant Certificates shall be
countersigned, issued and delivered by the Warrant Agent.
                  (c) From time to time, up to the Warrant Expiration Date, the
Transfer Agent shall countersign and deliver stock certificates in required
whole number denominations representing the shares of Common Stock issuable upon
the exercise of Warrants in accordance with this Agreement.
                  (d) From time to time, up to the Warrant Expiration Date, the
Warrant Agent shall countersign and deliver Warrant Certificates in required
whole number denominations to the persons entitled thereto in connection with
any transfer or exchange permitted under this Agreement; provided that no
Warrant Certificates shall be issued except (i) those initially issued hereunder
or otherwise issuable pursuant to the Underwriting Agreement, including those
issuable in exchange for certain outstanding warrants, (ii) those issued on or
after the date of this Agreement, upon the exercise of fewer than all Warrants
represented by any Warrant Certificate, to evidence any unexercised Warrants
held by the exercising Registered Holder, (iii) those issued upon any transfer
or exchange pursuant to Paragraph 6 of this Agreement, (iv) those issued in
replacement of lost, stolen, destroyed or mutilated Warrant Certificates
pursuant to Paragraph 7 of this Agreement, (v) those issued pursuant to the
Representatives' Option, and (vi) at the option of the Company, in such form as
may be approved by the Board of Directors, to reflect any adjustment or change
in the Purchase Price or the number of shares of Common Stock purchasable upon
exercise of the Warrants made pursuant to Paragraph 9 of this Agreement.

                                      - 3 -

<PAGE>



In addition, at the discretion of the Company, the Company may authorize the
issuance of additional Warrants, which shall be subject to the provisions of
this Agreement.
               3. Form and Execution of Warrant Certificates.
                  (a) The Warrant Certificates for the Warrants shall be
substantially in the form annexed as Exhibit A to this Agreement, (the
provisions of which are hereby incorporated herein) and may have such letters,
numbers or other marks of identification or designation and such legends,
summaries or endorsements printed, lithographed or engraved thereon as the
Company may deem appropriate and as are not inconsistent with the provisions of
this Agreement, or as may be required to comply with any law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any stock
exchange on which the Warrants may be listed, or to conform to usage or to the
requirements of Paragraph 2(b) of this Agreement. The Warrant Certificates shall
be dated the date of issuance thereof (whether upon initial issuance, transfer
or exchange in lieu of mutilated, lost, stolen, or destroyed Warrant
Certificates) and issued in registered form. Warrant Certificates shall be
numbered serially with the letter M or other letters acceptable to the Company
and the Warrant Agent.
                  (b) Warrant Certificates shall be executed on behalf of the
Company by its Chairman of the Board, President or any Vice President and by its
Secretary or an Assistant Secretary, by manual signatures or by facsimile
signatures printed thereon, and shall have imprinted thereon a facsimile of the
Company's seal. Warrant Certificates shall be manually countersigned by the
Warrant Agent and shall not be valid for any purpose unless so countersigned. In
case any officer of the Company who shall have signed any of the Warrant
Certificates shall cease to be an officer of the Company or to hold the
particular office referenced in the Warrant Certificate before the date of
issuance of the Warrant Certificates or before countersignature by the Warrant
Agent and issue and delivery thereof, such Warrant Certificates may nevertheless
be countersigned by the Warrant Agent, issued and delivered with the same force
and effect as though the person who signed the Warrant Certificates had not
ceased to be an officer of the Company or to hold such office. After
countersignature by the Warrant Agent, Warrant Certificates shall be delivered
by the Warrant Agent to the Registered Holder without further action by the
Company, except as otherwise provided by Paragraph 4 of this Agreement.
               4. Exercise. Each Warrant may be exercised by the Registered
Holder thereof at any time after the issuance thereof, but not after the Warrant
Expiration Date, upon the terms and subject to the conditions set forth herein
and in the Warrant Certificate. A Warrant shall be deemed to have been exercised
immediately prior to the close of business on the Exercise Date and the person
entitled to receive the securities deliverable upon such exercise shall be
treated for all purposes as the holder of those securities upon the exercise of
the Warrant as of the close

                                      - 4 -

<PAGE>



of business on the Exercise Date. As soon as practicable on or after the
Exercise Date, the Warrant Agent shall deposit the proceeds received from the
exercise of a Warrant and shall notify the Company in writing of the exercise of
the Warrant. Promptly following, and in any event within five (5) days after the
date of such notice from the Warrant Agent, the Warrant Agent, on behalf of the
Company, shall cause to be issued and delivered by the Transfer Agent, to the
person or persons entitled to receive the same, a certificate or certificates
for the securities deliverable upon such exercise, (plus a certificate for any
remaining unexercised Warrants of the Registered Holder) unless prior to the
date of issuance of such certificates the Company shall instruct the Warrant
Agent to refrain from causing such issuance of certificates pending clearance of
checks received in payment of the Purchase Price pursuant to such Warrants.
Notwithstanding the foregoing, in the case of payment made in the form of a
check drawn on an account of the Representatives or such other investment banks
and brokerage houses as the Company shall approve in writing to the Warrant
Agent, by the Representatives or such other investment bank or brokerage house,
certificates shall immediately be issued without prior notice to the Company or
any delay. Upon the exercise of any Warrant and clearance of the funds received,
the Warrant Agent shall promptly remit the payment received for the Warrant (the
"Warrant Proceeds") to the Company or as the Company may direct in writing.
               5. Reservation of Shares; Listing; Payment of Taxes.
                  (a) The Company covenants that it will at all times reserve
and keep available out of its authorized Common Stock, solely for the purpose of
issue upon exercise of Warrants, such number of shares of Common Stock as shall
then be issuable upon the exercise of all outstanding Warrants. The Company
covenants that all Warrant Shares shall, at the time of delivery in accordance
with this Agreement, be duly and validly issued, fully paid, nonassessable and
free from all taxes, liens and charges with respect to the issue thereof (other
than those which the Company shall promptly pay or discharge), and that upon
issuance such shares shall be listed on each national securities exchange or
eligible for inclusion in each automated quotation system, if any, on which the
other shares of outstanding Common Stock of the Company are then listed or
eligible for inclusion.
                  (b) The Company covenants that if any securities to be
reserved for the purpose of exercise of Warrants hereunder require registration
with, or approval of, any governmental authority under any Federal securities
law before such securities may be validly issued or delivered upon such
exercise, then the Company will in good faith and as expeditiously as reasonably
possible, endeavor to secure such registration or approval. The Company will use
reasonable efforts to obtain appropriate approvals or registrations under state
"blue sky" securities laws. With respect to any such securities, however,
Warrants may not be exercised by, or shares

                                      - 5 -

<PAGE>



of Common Stock issued to, any Registered Holder in any state in which such
exercise would be unlawful.
                  (c) The Company shall pay all documentary, stamp or similar
taxes and other governmental charges that may be imposed with respect to the
issuance of Warrants, or the issuance, or delivery of any shares upon exercise
of the Warrants; provided, however, that if the shares of Common Stock are to be
delivered in a name other than the name of the Registered Holder of the Warrant
Certificate representing any Warrant being exercised, then no such delivery
shall be made unless the person requesting the same has paid to the Warrant
Agent the amount of transfer taxes or charges incident thereto, if any.
                  (d) The Warrant Agent is hereby irrevocably authorized to
requisition the Company's Transfer Agent from time to time for certificates
representing shares of Common Stock issuable upon exercise of the Warrants, and
the Company will authorize the Transfer Agent to comply with all such proper
requisitions. The Company will file with the Warrant Agent a statement setting
forth the name and address of the Transfer Agent of the Company for shares of
Common Stock issuable upon exercise of the Warrants.
               6. Exchange and Registration of Transfer.
                  (a) Warrant Certificates may be exchanged for other Warrant
Certificates representing an equal aggregate number of Warrants of the same
class or may be transferred in whole or in part. Warrant Certificates to be
exchanged shall be surrendered to the Warrant Agent at its Corporate Office, and
upon satisfaction of the terms and provisions of this Agreement, the Company
shall execute and the Warrant Agent shall countersign, issue and deliver in
exchange therefor the Warrant Certificate or Certificates which the Registered
Holder making the exchange shall be entitled to receive.
                  (b) The Warrant Agent shall keep at its office books in which,
subject to such reasonable regulations as it may prescribe, it shall register
Warrant Certificates and the transfer thereof in accordance with its regular
practice. Upon due presentment for registration of transfer of any Warrant
Certificate at such office, the Company shall execute and the Warrant Agent
shall issue and deliver to the transferee or transferees a new Warrant
Certificate or Certificates representing an equal aggregate number of Warrants.
                  (c) With respect to all Warrant Certificates presented for
registration or transfer, or for exchange or exercise, the subscription form on
the reverse thereof shall be duly endorsed, or be accompanied by a written
instrument or instruments of transfer and subscription, in form satisfactory to
the Company and the Warrant Agent, duly executed by the Registered Holder or his
attorney-in-fact duly authorized in writing.

                                      - 6 -

<PAGE>



                  (d) A reasonable service charge may be imposed by the Warrant
Agent for any exchange or registration of transfer of Warrant Certificates. In
addition, the Company may require payment by such holder of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any exchanges, registration or transfer of Warrant Certificates.
                  (e) All Warrant Certificates surrendered for exercise or for
exchange in case of mutilated Warrant Certificates shall be promptly canceled by
the Warrant Agent and thereafter retained by the Warrant Agent until termination
of this Agreement or resignation as Warrant Agent, or, with the prior written
consent of the Representatives, disposed of or destroyed, at the direction of
the Company.
                  (f) Prior to due presentment for registration of transfer
thereof, the Company and the Warrant Agent may deem and treat the Registered
Holder of any Warrant Certificate as the absolute owner thereof and of each
Warrant represented thereby (notwithstanding any notations of ownership or
writing thereon made by anyone other than a duly authorized officer of the
Company or the Warrant Agent) for all purposes and shall not be affected by any
notice to the contrary.
                  (g) Notwithstanding any other provisions of this Agreement, no
Warrants issued upon exercise of the Unit Purchase Option and no shares of
Common Stock issuable upon exercise of such Warrants may be sold, transferred,
assigned or hypothecated for a period of one year from the Effective Date except
to the officers of the Representatives or to selling group members or officers
or partners thereof, all of whom shall be bound by such restrictions. Until the
expiration of such one-year period, Warrant Certificates and stock certificates
shall be marked with a legend referring to such restriction.
               7. Loss or Mutilation. Upon receipt by the Company and the
Warrant Agent of evidence satisfactory to them of the ownership of and loss,
theft, destruction or mutilation of any Warrant Certificate and (in case of
loss, theft or destruction) of indemnity satisfactory to them, and (in the case
of mutilation) upon surrender and cancellation thereof, the Company shall
execute and the Warrant Agent shall (in the absence of notice to the Company
and/or Warrant Agent that the Warrant Certificate has been acquired by a bona
fide purchaser) countersign and deliver to the Registered Holder in lieu thereof
a new Warrant Certificate of like tenor representing an equal aggregate number
of Warrants. Applicants for a substitute Warrant Certificate shall comply with
such other reasonable regulations and pay such other reasonable charges as the
Warrant Agent may prescribe.

                                      - 7 -

<PAGE>

               8. Redemption.
                  (a) Commencing twelve (12) months from the Effective Date or
earlier with the consent of the Representatives, the Company shall have the
right, on not less than thirty (30) nor more than sixty (60) days notice given
prior to the Redemption Date, as hereinafter defined, at any time to redeem the
then outstanding Warrants at the Redemption Price, provided that the Market
Price of the Common Stock shall equal or exceed the "Target Price" with respect
to the class of Warrants as to which the Company is exercising its right of
redemption. The "Target Price" shall mean one hundred fifty percent (150%) of
the Purchase Price with respect to the applicable class of Warrants. Market
Price for the purpose of this Paragraph 8 shall mean, if the Common Stock is
listed on the Nasdaq Stock Market or the New York or American Stock Exchange,
the average last reported sales price (or, if no sale is reported on any such
trading day, the average of the closing bid and asked prices) on the principal
market for the Common Stock or, if the Common Stock is not so listed or traded,
the average of the last reported bid prices of the Common Stock, during the
twenty (20) day period ending within three (3) days of the date the Warrants are
called for redemption. Notice of redemption shall be mailed by first class mail,
postage prepaid, not later than five (5) business days (or such longer period to
which the Representatives may consent) after the date the Warrants are called
for redemption. All Warrants of any class of Warrants must be redeemed if any
Warrants of such class are redeemed.
                  (b) If the conditions set forth in Paragraph 8(a) of this
Agreement are met, and the Company desires to exercise its right to redeem the
Warrants, it shall request the Representatives or the Warrant Agent to mail the
notice of redemption referred to in said Paragraph 8(a) to each of the
Registered Holders of the Warrants to be redeemed, first class, postage prepaid,
not earlier than the sixtieth (60th) day nor later than the thirtieth (30th) day
before the date fixed for redemption, at their last addresses as shall appear on
the records maintained pursuant to Paragraph 6(b) of this Agreement. Any notice
mailed in the manner provided herein shall be conclusively presumed to have been
duly given whether or not the Registered Holder receives such notice. The
Warrant Agent agrees to mail such notice if requested by the Company or the
Representatives.
                  (c) The notice of redemption shall specify (i) the Redemption
Price, (ii) the date fixed for redemption, (iii) the place where the Warrant
Certificates shall be delivered and the redemption price to be paid, and (iv)
that the right to exercise the Warrants shall terminate at 5:00 p.m. (New York
City time) on the business day immediately preceding the date fixed for
redemption. The date fixed for the redemption of the Warrants shall be the
Redemption Date. No failure to mail such notice nor any defect therein or in the
mailing thereof shall affect the validity of the proceedings for such redemption
except as to a Registered Holder (A) to whom

                                      - 8 -

<PAGE>



notice was not mailed, or (B) whose notice was defective. An affidavit of the
Warrant Agent or of the Secretary or an Assistant Secretary of either of the
Representatives or the Company that notice of redemption has been mailed shall,
in the absence of fraud, be prima facie evidence of the facts stated therein.
                  (d) If either class of Warrant shall have been redeemed, any
right to exercise a Warrant of such class shall terminate at 5:00 p.m. (New York
City time) on the business day immediately preceding the Redemption Date. After
such time, Holders of the Warrants shall have no further rights except to
receive, upon surrender of the Warrant, the Redemption Price without interest,
subject to the provisions of applicable laws relating to the treatment of
abandoned property. In the event that the Warrants or the Warrant Shares shall
not be subject to a current and effective registration statement under the
Securities Act of 1933, as amended, at any time subsequent to the date the
Warrants are called for redemption, the notice of redemption shall not be
effective and shall be deemed for all purposes not to have been given. Nothing
in the preceding sentence shall be construed to prohibit or restrict the Company
from thereafter calling the Warrants for redemption in the manner provided for,
and subject to the provisions of, this Paragraph 8.
                  (e) From and after the Redemption Date with respect to the
Warrants, the Company shall, at the place specified in the notice of redemption,
upon presentation and surrender to the Company by or on behalf of the Registered
Holder thereof of one or more Warrant Certificates evidencing Warrants to be
redeemed, deliver or cause to be delivered to or upon the written order of such
Holder a sum in cash equal to the Redemption Price of each such Warrant. From
and after the Redemption Date and upon the deposit or setting aside by the
Company of a sum sufficient to redeem all the Warrants called for redemption,
such Warrants shall expire and become void and all rights hereunder and under
the Warrant Certificates, except the right to receive payment of the Redemption
Price, shall cease.
                  (f) Notwithstanding any other provision of this Agreement, the
Company shall not call the Warrants for redemption unless there is, at the time
the Warrants are called for redemption, a current and effective registration
statement or a post-effective amendment to the registration statement covering
the issuance of the shares of Common Stock issuable upon exercise of the
Warrants.
                  (g) In the event that the Representatives' Option is exercised
at a time subsequent to the redemption of the Warrants but prior to the Warrant
Expiration Date, as defined in Paragraph 1(j) of this Agreement, then,
notwithstanding any other provisions of this Agreement, the Warrants issued upon
such exercise may be redeemed by the Company at any time after issuance.

                                      - 9 -

<PAGE>



               9. Adjustment of Exercise Price and Number of Securities Issuable
upon Exercise of Warrants.
                  (a) In case the Company shall, at any time or from time to
time after the date of this Agreement, pay a dividend or make a distribution on
its shares of Common Stock in shares of Common Stock, subdivide or reclassify
its outstanding Common Stock into a greater number of shares, or combine or
reclassify its outstanding Common Stock into a smaller number of shares or
otherwise effect a combination of shares or reverse split, the Purchase Price in
effect at the time of the record date for such dividend or distribution or of
the effective date of such subdivision, combination or reclassification shall be
proportionately adjusted so that the holder of any Warrant exercised after such
date shall be entitled to receive the aggregate number and kind of shares which,
if such Warrant had been exercised immediately prior to such time, he would have
owned upon such exercise and been entitled to receive upon such dividend,
subdivision, combination or reclassification. Such adjustment shall be made
successively whenever any event listed in this Paragraph 9(a) shall occur.
                  (b) In case the Company shall, at any time or from time to
time after the date of this Agreement, issue rights or warrants to all holders
of its Common Stock entitling them to subscribe for or purchase shares of Common
Stock (or securities convertible into Common Stock) at a price (or having a
conversion price per share) less than the current market price of the Common
Stock (as defined in Paragraph 9(e) of this Agreement) on the record date
mentioned below, the Purchase Price shall be adjusted so that the same shall
equal the price determined by multiplying the Purchase Price in effect
immediately prior to the date of such issuance by a fraction, of which the
numerator shall be the number of shares of Common Stock outstanding on the
record date mentioned below plus the number of additional shares of Common Stock
which the aggregate offering price of the total number of shares of Common Stock
so offered (or the aggregate conversion price of the convertible securities so
offered) would purchase at such current market price per share of the Common
Stock, and of which the denominator shall be the number of shares of Common
Stock outstanding on such record date plus the number of additional shares of
Common Stock offered for subscription or purchase (or into which the convertible
securities so offered are convertible). Such adjustment shall be made
successively whenever such rights or warrants are issued and shall become
effective immediately after the record date for the determination of
stockholders entitled to receive such rights or warrants; and to the extent that
shares of Common Stock are not delivered (or securities convertible into Common
Stock are not delivered) after the expiration of such rights or warrants, the
Purchase Price shall be readjusted to the Purchase Price which would then be in
effect had the adjustments made upon the issuance of such rights or warrants
been made upon the basis of delivery of only

                                     - 10 -

<PAGE>



the number of shares of Common Stock (or securities convertible into Common
Stock) actually delivered.
                  (c) In case the Company shall, at any time or from time to
time after the date hereof, distribute to all holders of Common Stock evidences
of its indebtedness or assets (excluding cash dividends or distributions paid
out of current earnings and dividends or distributions referred to in Paragraph
9(a) of this Agreement) or subscription rights or warrants (excluding those
referred to in Paragraph 9(b) of this Agreement), then in each such case the
Purchase Price in effect thereafter shall be determined by multiplying the
Purchase Price in effect immediately prior thereto by a fraction, of which the
numerator shall be the total number of shares of Common Stock outstanding
multiplied by the current market price per share of Common Stock (as defined in
Paragraph 9(e) of this Agreement), less the fair market value (as determined by
the Company's Board of Directors) of said assets or evidences of indebtedness so
distributed or of such rights or warrants, and of which the denominator shall be
the total number of shares or Common Stock outstanding multiplied by such
current market price per share of Common Stock. Such adjustment shall be made
whenever any such distribution is made and shall become effective immediately
after the record date for the determination of stockholders entitled to receive
such distribution.
                  (d) Whenever the Purchase Price payable upon exercise of each
Warrant is adjusted pursuant to Paragraphs 9(a), (b) or (c) of this Agreement,
the number of shares of Common Stock purchasable upon exercise of each Warrant
shall simultaneously be adjusted by multiplying the number of shares issuable
upon exercise of each Warrant in effect on the date thereof by the Purchase
Price in effect on the date thereof and dividing the product so obtained by the
Purchase Price, as adjusted.
                  (e) For the purpose of any computation pursuant to Paragraphs
9(b) and (c) of this Agreement, the current market price per share of Common
Stock at any date shall be deemed to be the average of the daily closing prices
for thirty (30) consecutive business days commencing fifteen (15) business days
before such date. The closing price for each day shall be the reported last sale
price regular way or, in case no such reported sale takes place on such day, the
average of the last reported high bid and low asked prices regular way, in
either case on the principal national securities exchange on which the Common
Stock is admitted to trading or listed, if the Common Stock is admitted to
trading or listing on the New York or American Stock Exchange or on The Nasdaq
Stock Market if included in such system or if not listed or admitted to trading
on such exchange or system, the average of the highest bid and lowest asked
prices as reported by Nasdaq, or the National Quotation Bureau, Inc. or another
similar organization if Nasdaq is no

                                     - 11 -

<PAGE>



longer reporting such information, or if not so available, the fair market price
as determined by the Board of Directors of the Company.
                  (f) No adjustment in the Purchase Price shall be required
unless such adjustment would require an increase or decrease of at least five
cents ($0.05) in such price; provided, however, that any adjustments which by
reason of this Paragraph 9(f) are not required to be made shall be carried
forward and taken into account in any subsequent adjustment. All calculations
under this Paragraph 9 shall be made to the nearest cent or to the nearest
one-tenth of a share, as the case may be. Anything in this Paragraph 9 to the
contrary notwithstanding, the Company may, upon notice to the record holders of
the Warrants, in its sole discretion, reduce the Purchase Price of the Warrants,
and, if such reduction is not otherwise required by this Paragraph 9, such
reduction (i) will not, unless the Board of Directors otherwise determines,
result in any change in the number or class of shares of Common Stock issuable
upon exercise of such Warrants, and (ii) may be of limited duration, in which
event the reduction in Purchase Price shall not apply to any Warrants exercised
after the expiration of the time during which the reduced Purchase Price is in
effect.
                  (g) The Company may retain a firm of independent public
accountants (who may be the regular accountants employed by the Company) of
recognized standing selected by the Board of Directors of the Company to make
any computation required by this Paragraph 9, and a certificate signed by such
firm shall be conclusive evidence of the correctness of such adjustment.
                  (h) In the event that at any time, as a result of an
adjustment made pursuant to Paragraph 9(a) of this Agreement, the holder of any
Warrant thereafter shall become entitled to receive any shares of the Company,
other than Common Stock, thereafter the number of such other shares so
receivable upon exercise of any Warrant shall be subject to adjustment from time
to time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Common Stock contained in Paragraphs 9(a) to (f),
inclusive, of this Agreement.
                  (i) The Company may elect, upon any adjustment of the Purchase
Price hereunder, to adjust the number of Warrants outstanding, in lieu of the
adjustment in the number of shares of Common Stock purchasable upon the exercise
of each Warrant as hereinabove provided, so that each Warrant outstanding after
such adjustment shall represent the right to purchase one share of Common Stock.
Each Warrant held of record and each Warrant issuable upon exercise of the
Representatives' Option prior to such adjustment of the number of Warrants shall
become that number of Warrants or an Representatives' Option to purchase that
number of Warrants (calculated to the nearest tenth) determined by multiplying
the number one by a fraction, the numerator of which shall be the Purchase Price
in effect immediately prior to such

                                     - 12 -

<PAGE>



adjustment and the denominator of which shall be the Purchase Price in effect
immediately after such adjustment. Upon each adjustment of the number of
Warrants pursuant to this Paragraph 9, the Company shall, as promptly as
practicable, cause to be distributed to each Registered Holder of Warrant
Certificates on the date of such adjustment Warrant Certificates evidencing,
subject to Paragraph 10 of this Agreement, the number of additional Warrants to
which such Holder shall be entitled as a result of such adjustment or, at the
option of the Company, cause to be distributed to such Holder in substitution
and replacement for the Warrant Certificates held by him prior to the date of
adjustment (and upon surrender thereof, if required by the Company) new Warrant
Certificates evidencing the number of Warrants to which such Holder shall be
entitled after such adjustment. With respect to the Representative's Option, the
Company shall give the registered holders of the Representative's Option notice
as to the number of Warrants issuable in respect of such Representative's Option
reflecting such adjustment. Any Warrants or notice to registered holders of
Representative's Option may be mailed by the Warrant Agent or by first class
mail, postage prepaid.
                  (j) In case of any reclassification, capital reorganization or
other change of outstanding shares of Common Stock, or in case of any
consolidation or merger of the Company with or into another corporation (other
than a consolidation or merger in which the Company is the continuing
corporation and which does not result in any reclassification, capital
reorganization or other change of outstanding shares of Common Stock), or in
case of any sale or conveyance to another corporation of the property of the
Company as, or substantially as, an entirety (other than a sale/leaseback,
mortgage or other financing transaction), the Company shall cause effective
provision to be made so that each holder of a Warrant then outstanding shall
have the right thereafter, by exercising such Warrant, to purchase the kind and
number of shares of stock or other securities or property (including cash)
receivable upon such reclassification, capital reorganization or other change,
consolidation, merger, sale or conveyance by a holder of the number of shares of
Common Stock that might have been purchased upon exercise of such Warrant
immediately prior to such reclassification, capital reorganization or other
change, consolidation, merger, sale or conveyance. Any such provisions shall
include provision for adjustments that shall be as nearly equivalent as may be
practicable to the adjustments provided for in this Paragraph 9. The Company
shall not effect any such consolidation, merger or sale unless, prior to or
simultaneously with the consummation thereof, the successor (if other than the
Company) resulting from such consolidation or merger or the corporation
purchasing assets or other appropriate corporation or entity shall assume, by
written instrument executed and delivered to the Warrant Agent, the obligation
to deliver to the holder of each Warrant such shares of stock, securities or
assets as, in accordance with the foregoing provisions, such holders may be
entitled

                                     - 13 -

<PAGE>



to purchase and the other obligations under this Agreement. The foregoing
provisions shall similarly apply to successive reclassifications, capital
reorganizations and other changes of outstanding shares of Common Stock and to
successive consolidations, mergers, sales or conveyances. In the event that, as
a result of any merger, consolidation or similar transaction, all of the holders
of Common Stock receive and are entitled to receive no consideration other than
cash in respect of their shares of Common Stock, then, at the effective time of
the transaction, the rights to purchase Common Stock pursuant to the Warrants
shall terminate, and the holders of the Warrants shall, notwithstanding any
other provisions of this Agreement or the Warrants, receive in respect of each
Warrant to purchase one (1) share of Common Stock, upon presentation of the
Warrant Certificate, the amount by which the consideration per share of Common
Stock payable to the holders of Common Stock at such effective time exceeds the
Purchase Price in effect on such effective date, without giving effect to the
transaction. In the event that, subsequent to the effective time, additional
cash or other consideration is payable to the holders of Common Stock of record
as of the effective time, the same consideration shall be payable to the holders
of the Warrants to the extent that the total cash then received by the holders
of Common Stock exceeds the Purchase Price in effect at such effective date,
without giving effect to the transaction, with the same effect as if the
Warrants had been exercised on and as of such effective time. In the event of
any merger, consolidation, sale or lease of substantially all of the Company's
assets or reorganization whereby the Company is not the surviving corporation,
in lieu of the foregoing provisions of this Paragraph 9(j), the Company may
provide in the agreement relating to the transaction that each Warrant shall
become, be converted into or be exchanged for, such securities of the surviving
or acquiring corporation or other entity as has a value equal to the value of
the Warrants (which shall not exceed the amount by which the consideration to be
received per share of Common Stock (valued on such date as the Company's Board
of Directors shall determine) exceeds the exercise price of the Warrant), the
value of the Warrants and securities being issued in exchange therefor to be
determined by the Company's Board of Directors, such determination to be final,
binding and conclusive on the Company and the holders of the Warrants. In the
event that, in such a transaction, the value of the consideration to be received
per share of Common Stock is not greater than the exercise price of the
Warrants, the Warrants shall terminate and no consideration will be paid with
respect thereof.
                  (k) Irrespective of any adjustments or changes in the Purchase
Price or the number of shares of Common Stock purchasable upon exercise of the
Warrants, the Warrant Certificates theretofore and thereafter issued shall,
unless the Company shall exercise its option to issue new Warrant Certificates
pursuant to Paragraphs 2(e) and 9(i) of this Agreement, continue to express the
Purchase Price per share, the number of shares purchasable thereunder

                                     - 14 -

<PAGE>



and the Redemption Price therefor as to the Purchase Price per share, and the
number of shares purchasable and the Redemption Price therefore were expressed
in the Warrant Certificates when the same were originally issued.
                  (l) After any adjustment of the Purchase Price pursuant to
this Paragraph 9, the Company will promptly prepare a certificate signed by the
Chairman, President, Vice President or Treasurer, of the Company setting forth:
(i) the Purchase Price as so adjusted, (ii) the number of shares of Common Stock
purchasable upon exercise of each Warrant after such adjustment, and, if the
Company shall have elected to adjust the number of Warrants, the number of
Warrants to which the registered holder of each Warrant shall then be entitled,
and (iii) a brief statement of the facts accounting for such adjustment. The
Company will promptly file such certificate with the Warrant Agent and cause a
brief summary thereof to be sent by first class mail to each Representative and
to each registered holder of Warrants at his last address as it shall appear on
the registry books of the Warrant Agent. No failure to mail such notice nor any
defect therein or in the mailing thereof shall affect the validity thereof. The
affidavit of an officer of the Warrant Agent or the Secretary or an Assistant
Secretary of the Company that such notice has been mailed shall, in the absence
of fraud, constitute prima facie evidence of the facts stated therein.
                  (m) As used in this Paragraph 9, the term "Common Stock" shall
mean and include the Company's Common Stock authorized on the Effective Date and
shall also include any capital stock of any class of the Company thereafter
authorized which shall not be limited to a fixed sum or percentage in respect of
the rights of the holders thereof to participate in dividends and in the
distribution of assets upon the voluntary liquidation, dissolution or winding up
of the Company; provided, however, that the shares issuable upon exercise of the
Warrants shall include only shares of such class designated in the Company's
Certificate of Incorporation as Common Stock on the Effective Date or, in the
case of any reclassification, change, consolidation, merger, sale or conveyance
of the character referred to in Paragraph 9(j) of this Agreement, the stock,
securities or property provided for in such section or, in the case of any
reclassification or change in the outstanding shares of Common Stock issuable
upon exercise of the Warrants as a result of a subdivision or combination or
consisting of a change in par value, or from par value to no par value, or from
no par value to par value, such shares of Common Stock as so reclassified or
changed.
                  (n) Any determination as to whether an adjustment in the
Purchase Price in effect hereunder is required pursuant to this Paragraph 9, or
as to the amount of any such adjustment, if required, shall be binding upon the
holders of the warrants and the Company if made in good faith by the Board of
Directors of the Company.

                                     - 15 -

<PAGE>



                  (o) In lieu of an adjustment pursuant to Paragraph 9(b) of
this Agreement, if the Company shall grant to the holders of Common Stock, as
such, rights or warrants to subscribe for or to purchase Common Stock or
securities convertible into or exchangeable for or carrying a right or warrant
to purchase Common Stock, the Company may concurrently therewith grant to each
Registered Holder as of the record date for such transaction of the Warrants
then outstanding, the rights or warrants to which each Registered Holder would
have been entitled if, on the record date used to determine the stockholders
entitled to the rights or warrants being granted by the Company, the Registered
Holder were the holder of record of the number of whole shares of Common Stock
then issuable upon exercise of his Warrants. If the Company exercises such right
no adjustment which otherwise might be called for pursuant to said Paragraph
9(b) shall be made.
               10. Fractional Warrants and Fractional Shares. If the number of
shares of Common Stock purchasable upon the exercise of each Warrant is adjusted
pursuant to Paragraph 9 of this Agreement, the Company nevertheless shall not be
required to issue fractions of shares, upon exercise of the Warrants or
otherwise, or to distribute certificates that evidence fractional shares. With
respect to any fraction of a share called for upon any exercise hereof, the
Company, at its option, shall either issue a whole share in lieu of such
fractional share or pay to the Holder an amount in cash equal to such fraction
multiplied by the current market value of such fractional share, determined as
follows:
                  (a) If the Common Stock is listed on the New York or American
Stock Exchange or admitted to unlisted trading privileges on such exchange or
listed for trading on the Nasdaq Stock Market, the current value shall be the
reported last sale price of the Common Stock on such exchange or system on the
last business day prior to the date of exercise of this Warrant, or if no such
sale is made on such day, the average closing bid and asked prices for such day
on such exchange or system; or
                  (b) If the Common Stock is not listed or admitted to unlisted
trading privileges, the current value shall be the last reported bid price
reported by the National Quotation Bureau, Inc. on the last business day prior
to the date of the exercise of this Warrant; or
                  (c) If the Common Stock is not so listed or admitted to
unlisted trading privileges and bid prices are not so reported, the current
value shall be an amount determined in such reasonable manner as may be
prescribed by the Board of Directors of the Company.
               11. Warrant Holders Not Deemed Stockholders. No holder of
Warrants shall, as such, be entitled to vote or to receive dividends or be
deemed the holder of Common Stock that may at any time be issuable upon exercise
of such Warrants for any purpose whatsoever, nor shall anything contained in
this Agreement be construed to confer upon the holder of Warrants, as

                                     - 16 -

<PAGE>



such, any of the rights of a stockholder of the Company or any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action (whether
upon any recapitalization, issue or reclassification of stock, change of par
value or change of stock to no par value, consolidation, merger or conveyance or
otherwise), or to receive notice of meetings, or to receive dividends or
subscription rights, until such Holder shall have exercised such Warrants and
been issued shares of Common Stock in accordance with the provisions hereof
               12. Rights of Action. All rights of action with respect to this
Agreement are vested in the respective Registered Holders of the Warrants, and
any Registered Holder of a Warrant, without consent of the Warrant Agent or of
the holder of any other Warrant, may, in his own behalf and for his own benefit,
enforce against the Company his right to exercise his Warrants for the purchase
of shares of Common Stock in the manner provide in the Warrant Certificate and
this Agreement.
               13. Agreement of Warrant Holders. Every holder of a Warrant, by
his acceptance of the Warrants, consents and agrees with the Company, the
Warrant Agent and every other holder of a Warrant that:
                  (a) The warrants are transferable only on the registry books
of the Warrant Agent by the Registered Holder thereof in person or by his
attorney duly authorized in writing and only if the Warrant Certificates
representing such Warrants are surrendered at the office of the Warrant Agent,
duly endorsed or accompanied by a proper instrument of transfer satisfactory to
the Warrant Agent and the Company in their sole discretion, together with
payment of any applicable transfer taxes; and
                  (b) The Company and the Warrant Agent may deem and treat the
person in whose name the Warrant Certificate is registered as the holder and as
the absolute, true and lawful owner of the Warrants represented thereby for all
purposes, and neither the Company nor the Warrant Agent shall be affected by any
notice or knowledge to the contrary, except as otherwise expressly provided in
Paragraph 6 of this Agreement.
               14. Cancellation of Warrant Certificates. If the Company shall
purchase or acquire any Warrant or Warrants, the Warrant Certificate or Warrant
Certificates evidencing the same shall thereupon be delivered to the Warrant
Agent and canceled by it and retired.
               15. Concerning the Warrant Agent.
                   (a) The Warrant Agent acts hereunder as agent and in a
ministerial capacity for the Company, and its duties shall be determined solely
by the provisions of this Agreement. The Warrant Agent shall not, by issuing and
delivering Warrant Certificates or by any other act hereunder be deemed to make
any representations as to the validity, value or authorization of the

                                     - 17 -

<PAGE>



Warrant Certificates or the Warrants represented thereby or of any securities or
other property delivered upon exercise of any Warrant or whether any stock
issued upon exercise of any Warrant is fully paid and nonassessable.
                  (b) The Warrant Agent shall not at any time be under any duty
or responsibility to any holder of Warrant Certificates to make or cause to be
made any adjustment of the Purchase Price or the Redemption Price provided in
this Agreement, or to determine whether any fact exists which may require any
such adjustments, or with respect to the nature or extent of any such
adjustment, when made, or with respect to the method employed in making the
same. It shall not (i) be liable for any recital or statement of facts contained
herein or for any action taken, suffered or omitted by it in reliance on any
Warrant Certificate or other document or instrument believed by it in good faith
to be genuine and to have been signed or presented by the proper party or
parties, (ii) be responsible for any failure on the part of the Company to
comply with any of its covenants and obligations contained in this Agreement or
in any Warrant Certificate, or (iii) be liable for any act or omission in
connection with this Agreement except for its own negligence or wilful
misconduct.
                  (c) The Warrant Agent may at any time consult with counsel
satisfactory to it (who may be counsel for the Company) and shall incur no
liability or responsibility for any action taken, suffered or omitted by it in
good faith in accordance with the opinion or advice of such counsel.
                  (d) Any notice, statement, instrument, request, direction,
order or demand of the Company shall be sufficiently evidenced by an instrument
signed by the Chairman of the Board, President, any Vice President, its
Secretary, or Assistant Secretary, unless other evidence in respect thereof is
specifically prescribed in this Agreement. The Warrant Agent shall not be liable
for any action taken, suffered or omitted by it in accordance with such notice,
statement, instruction, request, direction, order or demand believed by it to be
genuine.
                  (e) The Company agrees to pay the Warrant Agent reasonable
compensation for its services hereunder and to reimburse it for its reasonable
expenses hereunder; it further agrees to indemnify the Warrant Agent and hold it
harmless against any and all costs and counsel fees, for anything done or
omitted by the Warrant Agent in the execution of its duties and powers hereunder
except losses, expenses and liabilities arising as a result of the Warrant
Agent's negligence or wilful misconduct.
                  (f) The Warrant Agent may resign its duties and be discharged
from all further duties and liabilities hereunder (except liabilities arising as
a result of the Warrant Agent's own negligence or wilful misconduct), after
giving thirty (30) days' prior written notice to the Company. At least fifteen
(15) days prior to the date such resignation is to become effective, the Warrant

                                     - 18 -

<PAGE>



Agent shall cause a copy of such notice of resignation to be mailed to the
Registered Holder of each Warrant Certificate at the Company's expense. Upon
such resignation, or any inability of the Warrant Agent to act as such under
this Agreement, the Company shall appoint a new warrant agent in writing. If the
Company shall fail to make such appointment within a period of fifteen (15) days
after it has been notified in writing of such resignation by the resigning
Warrant Agent, then the Registered Holder of any Warrant Certificate may apply
to any court of competent jurisdiction for the appointment of a new warrant
agent. Any new warrant agent, whether appointed by the Company or by such a
court, shall be a bank or trust company having a capital and surplus, as shown
by its last published report to its stockholders, of not less than $10,000,000
or a stock transfer company. After acceptance in writing of such appointment by
the new warrant agent is received by the Company, such new warrant agent shall
be vested with the same powers, rights, duties and responsibilities as if it had
been originally named herein as the Warrant Agent, without any further
assurance, conveyance, act or deed; but if for any reason, it shall be necessary
or expedient to execute and deliver any further assurance, conveyance, act or
deed, the same shall be done at the expense of the Company and shall be legally
and validly executed and delivered by the resigning Warrant Agent. Not later
than the effective date of any such appointment the Company shall file notice
thereof with the resigning Warrant Agent and shall forthwith cause a copy of
such notice to be mailed to the Registered Holder of each Warrant Certificate.
                  (g) Any corporation into which the Warrant Agent or any new
warrant agent may be converted or merged or any corporation resulting from any
consolidation to which the Warrant Agent or any new warrant agent shall be a
party or any corporation succeeding to the trust business of the Warrant Agent
shall be a successor warrant agent under this Agreement without any further act,
provided that such corporation is eligible for appointment as successor to the
Warrant Agent under the provisions of the preceding paragraph. Any such
successor warrant agent shall promptly cause notice of its succession as warrant
agent to be mailed to the Company and to the Registered Holder of each Warrant
Certificate.
                  (h) The Warrant Agent, its subsidiaries and affiliates, and
any of its or their officers or directors, may buy and hold or sell Warrants or
other securities of the Company and otherwise deal with the Company in the same
manner and to the same extent and with like effects as though it were not
Warrant Agent. Nothing herein shall preclude the Warrant Agent from acting in
any other capacity for the Company or for any other legal entity.
               16. Modification of Agreement. The Warrant Agent and the Company
may, by supplemental agreement, make any changes or corrections in this
Agreement (i) that they shall deem appropriate to cure any ambiguity or to
correct any defective or inconsistent provision or manifest mistake or error
herein contained; or (ii) that they may deem necessary or desirable and

                                     - 19 -

<PAGE>



which shall not adversely affect the interests of the holders of Warrant
Certificates; provided, however, that this Agreement shall not otherwise be
modified, supplemented or altered in any respect except with the consent in
writing of the Registered Holders of Warrant Certificates representing not less
than fifty percent (50%) of the Warrants then outstanding; and provided,
further, that no change in the number or nature of the securities purchasable
upon the exercise of any Warrant, or the Purchase Price therefor, or the
acceleration of the Warrant Expiration Date, shall be made without the consent
in writing of the Registered Holder of the Warrant Certificate representing such
Warrant, other than such changes as are specifically prescribed by this
Agreement as originally executed or are made in compliance with applicable law;
and provided, further, that Paragraphs 4(b) and 4(c) may not be modified or
amended without the consent of the Representatives.
               17. Notices. All notices provided for in this Agreement shall be
in writing signed by the party giving such notice, and, unless otherwise
expressly provided in this Agreement, delivered personally or sent by overnight
courier or messenger against receipt thereof or sent by registered or certified
mail (air mail if overseas), return receipt requested, or by facsimile
transmission or similar means of communication. Notices sent by facsimile
transmission or similar means of communication shall be confirmed by
acknowledged receipt or by registered or certified mail, return receipt
requested. Notices shall be deemed to have been received on the date of personal
delivery or telecopy or, if sent by certified or registered mail, return receipt
requested, shall be deemed to be delivered on the third business day after the
date of mailing. Notices shall be sent to the Registered Holders at their
respective addresses on the Warrant Agent's warrant register, to the Company at
95 Parker Street, Newburyport, MA 01950, telecopier (978) 499-0221, Attention:
Richard F. Noll, President and Chief Executive Officer, and to the Warrant Agent
at its Corporate Office, telecopier (  )          . Either party may, by like
notice, change the address, person or telecopier number to which notice should
be given.
               18. Governing Law. This Agreement shall be governed by and
construed in accordance with the laws of the State of New York applicable to
agreements entered and to be performed wholly within such State, without regard
to principles of conflicts of laws. The parties hereby (a) irrevocably consent
and agree that any legal or equitable action or proceeding arising under or in
connection with this Agreement shall be brought exclusively in any Federal or
state court situated in New York County, New York, (b) irrevocably submit to and
accept, with respect to their respective properties and assets, generally and
unconditionally, the in personam jurisdiction of the aforesaid courts, and (c)
agree that any process in any action commenced in such court under this
Agreement may be served upon such party personally, by certified or registered
mail, return receipt requested, or by overnight courier service which obtains
evidence of delivery, with the

                                     - 20 -

<PAGE>



same full force and effect as if personally served upon such party in New York
City, in addition to any other method of service permitted by law.
               19. Binding Effect. This Agreement shall be binding upon and
inure to the benefit of the Company and, the Warrant Agent and their respective
successors and assigns, and the holders from time to time of Warrant
Certificates. Nothing in this Agreement is intended or shall be construed to
confer upon any other person any right, remedy or claim, in equity or at law, or
to impose upon any other person any duty, liability or obligation.
               20. Termination. This Agreement shall terminate at the close of
business on the Expiration Date of all the Warrants or such earlier date upon
which all Warrants have been exercised, except that the Warrant Agent shall
account to the Company for cash held by it, and the provisions of Paragraph 15
of this Agreement shall survive any such termination.
               21. Counterparts. This Agreement may be executed in several
counterparts, which taken together shall constitute a single document.
               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed as of the date first above written.

                                   ACTIVEWORLDS.COM, INC.


                                   By:_______________________________________
                                         Richard F. Noll, President and CEO


                                   __________________________________________


                                   By:_______________________________
                                                 , Authorized Officer

                                     - 21 -

<PAGE>
                                                                       EXHIBIT A

                      [FORM OF FACE OF WARRANT CERTIFICATE]



No. A-                                                     Warrant to Purchase
                                                               -----------
                                                          Shares of Common Stock

           Void after             , 2005 (or earlier upon redemption).

                              ACTIVEWORLDS.COM, INC

                SERIES B REDEEMABLE COMMON STOCK PURCHASE WARRANT

         This certifies that FOR VALUE RECEIVED                            or
registered assigns (the "Registered Holder") is the owner of the number of
Series B Redeemable Common Stock Purchase Warrants ("Warrants") specified above.
Each Warrant initially entitles the Registered Holder to purchase, subject to
the terms and conditions set forth in this Certificate and the Warrant Agreement
(as hereinafter defined), one (1) fully paid and nonassessable share of Common
Stock, par value $.001 per share ("Common Stock"), of Activeworlds.com, Inc., a
Delaware corporation (the "Company"), at any time during the period commencing
with the issuance of this Warrant and ending on the Expiration Date, as
hereinafter defined, by delivery of this Warrant, with the Subscription Form on
the reverse hereof duly executed, at the corporate office of
                          , as Warrant Agent, or its successor (the "Warrant
Agent"), accompanied by payment of $               , subject to adjustment as
provided in the Warrant Agreement (the "Purchase Price") in lawful money of the
United States of America in cash or by official bank or certified check made
payable to the order of the Company.

         This Warrant Certificate and each Warrant represented hereby are issued
pursuant to and are subject in all respects to the terms and conditions set
forth in the Warrant Agreement (the "Warrant Agreement"), dated as of
      , 2000, by and between the Company and the Warrant Agent.

         In the event of certain contingencies provided for in the Warrant
Agreement, the Purchase Price or the number of shares of Common Stock subject to
purchase upon the exercise of each Warrant represented hereby are subject to
modification or adjustment.

         Each Warrant represented hereby is exercisable at the option of the
Registered Holder, but no fractional shares of Common Stock will be issued. In
the case of the exercise of less than all the Warrants represented hereby, the
Company shall cancel this Warrant Certificate upon the surrender hereof and
shall execute and deliver a new Warrant Certificates or Warrant Certificates of
like tenor, which the Warrant Agent shall countersign, for the balance of such
Warrants.

         The term "Expiration Date" shall mean 5:00 P.M. (New York City time)
on            , 2005 or earlier upon redemption as hereinafter provided. If such
date shall in the State of New York be a holiday or a day on which the banks are
authorized or required to close, then the Expiration Date shall mean 5:00 P.M.
(New York City time) the next following day which in the State of New York is
not a holiday or a day on which banks are authorized or required to close. Under
certain circumstances as provided in the Warrant Agreement, the period during
which the Warrant may be exercised may be extended.

         The Company shall not be obligated to deliver any securities pursuant
to the exercise of this Warrant unless a registration statement under the
Securities Act of 1933, as amended, with respect to such securities is
effective. The Company has covenanted and agreed that it will file a
registration statement and will use its commercially reasonably efforts to cause
the same to become effective and to keep such registration statement current
while any of the Warrants are outstanding. This Warrant shall not be exercisable
by a Registered Holder in any state where such exercise would be unlawful.

         This Warrant Certificate is exchangeable, upon the surrender hereof by
the Registered Holder at the corporate office of the Warrant Agent, for a new
Warrant Certificate or Warrant Certificates of like tenor representing an equal
aggregate number of Warrants, each of such new Warrant Certificates to represent
such number of Warrants as shall

                                       A-1

<PAGE>

be designated by such Registered Holder at the time of such surrender. Upon
payment by the Registered Holder of any tax or other governmental charge imposed
in connection therewith, for registration of transfer of this Warrant
Certificate at such office, a new Warrant Certificate or Warrant Certificates
representing an equal aggregate number of Warrants will be issued to the
transferee in exchange therefor, subject to the limitations provided in the
Warrant Agreement.

         Prior to the exercise of any Warrant represented hereby, the Registered
Holder shall not be entitled to any rights of a stockholder of the Company,
including, without limitation, the right to vote or to receive dividends or
other distributions, and shall not be entitled to receive any notice of any
proceedings of the Company, except as provided in the Warrant Agreement.

         Commencing    , 2000, or earlier as provided in the Warrant Agreement,
this Warrant may be redeemed at the option of the Company, at a redemption price
of $.10 per Warrant at any time, provided the average market price for the
Common Stock issuable upon exercise of such Warrant shall equal or exceed 150%
of the Purchase Price for the twenty day period ending within three days of the
date the Warrants are called for redemption. Notice of redemption shall be given
not earlier than the thirtieth (30th) nor later than the sixtieth (60th) day
before the date fixed for redemption, all as provided in the Warrant Agreement.
On and after 5:00 P.M. (New York City time) on the business day immediately
preceding the date fixed for redemption, the Registered Holder shall have no
rights with respect to this Warrant except to receive the $.10 per Warrant upon
surrender of this Certificate. This Warrant may only be called for redemption
if, on the date the Warrant is called for redemption, the issuance of the shares
of Common Stock upon exercise of this Warrant is subject to a current and
effective registration statement.

         Prior to due presentment for registration of transfer hereof, the
Company and the Warrant Agent may deem and treat the Registered Holder as the
absolute owner hereof and of each Warrant represented hereby (notwithstanding
any notations of ownership or writing hereon made by anyone other than a duly
authorized officer of the Company or the Warrant Agent) for all purposes and
shall not be affected by any notice to the contrary.

         This Warrant Certificate shall be governed by and construed in
accordance with the laws of the State of New York applicable to agreements
executed and to be performed wholly within such State, without regard to
principles of conflicts of laws.

         This Warrant Certificate is not valid unless countersigned by the
Warrant Agent.

         IN WITNESS WHEREOF, the Company has caused this Warrant Certificate to
be duly executed, manually or in facsimile by two of its officers thereunto duly
authorized and a facsimile of its corporate seal to be imprinted hereon.

                                                  ACTIVEWORLDS.COM, INC.


Dated:_____________                               By:_________________________



                                                  By:_________________________

Countersigned:

____________________________                      [Seal]
  as Warrant Agent


By:_______________________________
       Authorized Officer


                                      A-2

<PAGE>
                             ACTIVEWORLDS.COM, INC.

                                SUBSCRIPTION FORM

      To Be Executed by the Registered Holder in Order to Exercise Warrants

         THE UNDERSIGNED REGISTERED HOLDER hereby irrevocably elects to
exercise______________ Warrants represented by this Warrant Certificate to
purchase the securities issuable upon the exercise of such Warrants, and
requests that certificates for such securities shall be issued in the name of

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________
                     (please print or type name and address)



Please insert Social Security
or other identifying number

______________________________

and be delivered to

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________
                     (please print or type name and address)


and if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below.


Date:__________________________     X__________________________________________

                                    ___________________________________________

                                    ___________________________________________

                                    ___________________________________________
                                    Address

                                    ___________________________________________
                                    Taxpayer Identification Number

                                    ___________________________________________
                                    Signature Medallion Guaranteed


                                      A-3

<PAGE>

                                   ASSIGNMENT

       To Be Executed by the Registered Holder in Order to Assign Warrants

         FOR VALUE RECEIVED, ___________________________________________________
hereby sells, assigns and transfers onto

Please insert social security
or other identifying number

_____________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________
                     (please print or type name and address)


______________________________ of the Warrants represented by this Warrant
Certificate, and hereby irrevocably constitutes and appoints _________________

_______________________________________________________________________Attorney
to transfer this Warrant Certificate on the books of the Company, with full
power of substitution in the premises.

Date:________________________________    X_____________________________________
                                            Signature Medallion Guaranteed

                                         ______________________________________


THE SIGNATURE TO THE ASSIGNMENT OR THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME AS WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER. AND MUST BE
GUARANTEED BY AN ELIGIBLE INSTITUTION (AS DEFINED IN RULE 17Ad-15 UNDER THE
SECURITIES AND EXCHANGE ACT OF 1934) WHICH MAY INCLUDE A COMMERCIAL BANK OR
TRUST COMPANY, SAVINGS ASSOCIATION, CREDIT UNION OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
MIDWEST STOCK EXCHANGE

                                      A-4