PROTON ENERGY SYSTEMS INC
S-1/A, EX-1.1, 2000-09-18
ELECTRICAL INDUSTRIAL APPARATUS
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                               [7,000,000] Shares

                          PROTON ENERGY SYSTEMS, INC.

                         COMMON STOCK, PAR VALUE $0.01


                             UNDERWRITING AGREEMENT



 ., 2000
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                                        ., 2000


Morgan Stanley & Co. Incorporated
Salomon Smith Barney Inc.
Credit Suisse First Boston Corporation
c/o Morgan Stanley & Co.
  Incorporated
  1585 Broadway
  New York, New York  10036

Dear Sirs and Mesdames:

          Proton Energy Systems, Inc., a Delaware corporation (the "Company"),
proposes to issue and sell to the several Underwriters named in Schedule I
hereto (the "Underwriters") [7,000,000] shares of its Common Stock, par value
$0.01, (the "Firm Shares").  The Company also proposes to issue and sell to the
several Underwriters not more than an additional [1,050,000] shares of its
Common Stock, par value $0.01, (the "Additional Shares") if and to the extent
that you, as Managers of the offering, shall have determined to exercise, on
behalf of the Underwriters, the right to purchase such shares of common stock
granted to the Underwriters in Section 2 hereof.  The Firm Shares and the
Additional Shares are hereinafter collectively referred to as the "Shares."  The
shares of Common Stock, par value $0.01, of the Company to be outstanding after
giving effect to the sales contemplated hereby are hereinafter referred to as
the "Common Stock."

          The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement, including a prospectus, relating to the
Shares.  The registration statement as amended at the time it becomes effective,
including the information (if any) deemed to be part of the registration
statement at the time of effectiveness pursuant to Rule 430A under the
Securities Act of 1933, as amended (the "Securities Act"), is hereinafter
referred to as the "Registration Statement"; the prospectus in the form first
used to confirm sales of Shares is hereinafter referred to as the "Prospectus."
If the Company has filed an abbreviated registration statement to register
additional shares of Common Stock pursuant to Rule 462(b) under the Securities
Act (the "Rule 462 Registration Statement"), then any reference herein to the
term "Registration Statement" shall be deemed to include such Rule 462
Registration Statement.

          Morgan Stanley & Co. Incorporated ("Morgan Stanley") has agreed to
reserve a portion of the Shares to be purchased by it under this Agreement for
sale to the Company's directors, officers, employees and business associates and
other parties related to the Company (collectively, "Participants"), as set
forth in the Prospectus under the heading "Underwriters" (the "Directed Share
Program").  The Shares to be sold by Morgan Stanley and its affiliates pursuant
to the Directed Share Program are referred to herein as the "Directed Shares."
Any Directed Shares not orally confirmed for purchase by any Participants by the
end of the business

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day on which this Agreement is executed will be offered to the public by the
Underwriters as set forth in the Prospectus.

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          1. Representations and Warranties. The Company represents and warrants
to and agrees with each of the Underwriters that:

               (a)  The Registration Statement has become effective; no stop
     order suspending the effectiveness of the Registration Statement is in
     effect, and no proceedings for such purpose are pending before or, to the
     Company's knowledge, threatened by the Commission.

               (b)  (i) The Registration Statement, when it became effective,
     did not contain and, as amended or supplemented, if applicable, will not
     contain any untrue statement of a material fact or omit to state a material
     fact required to be stated therein or necessary to make the statements
     therein not misleading, (ii) the Registration Statement and the Prospectus
     comply and, as amended or supplemented, if applicable, will comply in all
     material respects with the Securities Act and the applicable rules and
     regulations of the Commission thereunder and (iii) the Prospectus does not
     contain and, as amended or supplemented, if applicable, will not contain
     any untrue statement of a material fact or omit to state a material fact
     necessary to make the statements therein, in the light of the circumstances
     under which they were made, not misleading, except that the representations
     and warranties set forth in this paragraph do not apply to statements or
     omissions in the Registration Statement or the Prospectus based upon
     information relating to any Underwriter furnished to the Company in writing
     by such Underwriter through you expressly for use therein.

               (c)  The Company has been duly incorporated, is validly existing
     as a corporation in good standing under the laws of the jurisdiction of its
     incorporation, has the corporate power and authority to own its property
     and to conduct its business as described in the Prospectus and is duly
     qualified to transact business and is in good standing in each jurisdiction
     in which the conduct of its business or its ownership or leasing of
     property requires such qualification, except to the extent that the failure
     to be so qualified or be in good standing would not have a material adverse
     effect on the Company; the State of Connecticut is the only jurisdiction
     (a) in which the Company owns or leases property or maintains an office and
     (b) in which it would otherwise be required to be in good standing or
     obtain qualification for the business it conducts

               (d)  The Company has no subsidiaries.

               (e)  This Agreement has been duly authorized, executed and
     delivered by the Company.

               (f)  The authorized capital stock of the Company conforms as to
     legal matters to the description thereof contained in the Prospectus.

               (g)  The shares of Common Stock outstanding prior to the issuance
     of the Shares have been duly authorized and are validly issued, fully paid
     and non-assessable.

               (h)  The Shares have been duly authorized and, when issued and
     delivered in accordance with the terms of this Agreement, will be validly
     issued, fully paid and

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     non-assessable, and the issuance of such Shares will not be subject to any
     preemptive or similar rights.

               (i)  The execution and delivery by the Company of, and the
     performance by the Company of its obligations under, this Agreement will
     not contravene any provision of applicable law or the certificate of
     incorporation or bylaws of the Company or any agreement or other instrument
     binding upon the Company that is material to the Company, or any judgment,
     order or decree of any governmental body, agency or court having
     jurisdiction over the Company, and no consent, approval, authorization or
     order of, or qualification with, any governmental body or agency is
     required for the performance by the Company of its obligations under this
     Agreement, except such as may be required by the securities or Blue Sky
     laws of the various states in connection with the offer and sale of the
     Shares.

               (j)  There has not occurred any material adverse change, or any
     development involving a prospective material adverse change, in the
     condition, financial or otherwise, or in the earnings, business or
     operations of the Company, from that set forth in the Prospectus (exclusive
     of any amendments or supplements thereto subsequent to the date of this
     Agreement).

               (k)  There are no legal or governmental proceedings pending or,
     to the Company's knowledge, threatened to which the Company is a party or
     to which any of the properties of the Company is subject that are required
     to be described in the Registration Statement or the Prospectus and are not
     so described or any statutes, regulations, contracts or other documents
     that are required to be described in the Registration Statement or the
     Prospectus or to be filed as exhibits to the Registration Statement that
     are not described or filed as required.

               (l)  Each preliminary prospectus filed as part of the
     registration statement as originally filed or as part of any amendment
     thereto, or filed pursuant to Rule 424 under the Securities Act, complied
     when so filed in all material respects with the Securities Act and the
     applicable rules and regulations of the Commission thereunder.

               (m)  The Company is not and, after giving effect to the offering
     and sale of the Shares and the application of the proceeds thereof as
     described in the Prospectus, will not be required to register as an
     "investment company" as such term is defined in the Investment Company Act
     of 1940, as amended.

               (n)  The Company (i) is in compliance with any and all applicable
     foreign, federal, state and local laws and regulations relating to the
     protection of human health and safety, the environment or hazardous or
     toxic substances or wastes, pollutants or contaminants ("Environmental
     Laws"), (ii) have received all permits, licenses or other approvals
     required of them under applicable Environmental Laws to conduct their
     respective businesses and (iii) is in compliance with all terms and
     conditions of any such permit, license or approval, except where such
     noncompliance with Environmental Laws, failure to receive required permits,
     licenses or other approvals or failure to comply with

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     the terms and conditions of such permits, licenses or approvals would not,
     singly or in the aggregate, have a material adverse effect on the Company.

               (o)  There are no costs or liabilities associated with
     Environmental Laws (including, without limitation, any capital or operating
     expenditures required for cleanup, closure of properties or compliance with
     Environmental Laws or any permit, license or approval, any related
     constraints on operating activities and any potential liabilities to third
     parties) which would, singly or in the aggregate, have a material adverse
     effect on the Company.

               (p)  Subsequent to the respective dates as of which information
     is given in the Registration Statement and the Prospectus, (1) the Company
     has not incurred any material liability or obligation, direct or
     contingent, nor entered into any material transaction not in the ordinary
     course of business; (2) the Company has not purchased any of its
     outstanding capital stock, nor declared, paid or otherwise made any
     dividend or distribution of any kind on its capital stock other than
     ordinary and customary dividends; and (3) there has not been any material
     change in the capital stock, short-term debt or long-term debt of the
     Company, except in each case as described in the Prospectus.

               (q)  The Company owns no real property and has good and
     marketable title to all personal property owned by it which is material to
     the business of the Company, free and clear of all liens, encumbrances and
     defects except such as are described in the Prospectus or such as do not
     materially affect the value of such property and do not interfere with the
     use made and proposed to be made of such property by the Company; and any
     real property and buildings held under lease by the Company are held by it
     under valid, subsisting and enforceable leases with such exceptions as are
     not material and do not interfere with the use made and proposed to be made
     of such property and buildings by the, in each case except as described in
     the Prospectus.

               (r)  The Company owns or possesses, or can acquire on reasonable
     terms, all material patents, patent rights, licenses, inventions,
     copyrights, know-how (including trade secrets and other unpatented and/or
     unpatentable proprietary or confidential information, systems or
     procedures), trademarks, service marks and trade names currently employed
     by it in connection with the business now operated by it, and the Company
     has not received any notice of infringement of or conflict with asserted
     rights of others with respect to any of the foregoing which, singly or in
     the aggregate, if the subject of an unfavorable decision, ruling or
     finding, would have a material adverse effect on the Company.

               (s)  No material labor dispute with the employees of the Company
     exists, except as described in the Prospectus, or, to the knowledge of the
     Company, is imminent; and the Company is not aware of any existing,
     threatened or imminent labor disturbance by the employees of any of its
     principal suppliers, manufacturers or contracts that could have a material
     adverse effect on the Company.

               (t)  The Company is insured by the insurers of recognized
     financial responsibility against such losses and risks and in such amounts
     as are prudent and

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     customary in the businesses in which it is engaged; the Company has not
     been refused any insurance coverage sought or applied for; and the Company
     does not have any reason to believe that it will not be able to renew its
     existing insurance coverage as and when such coverage expires or to obtain
     similar coverage from similar insurers as may be necessary to continue its
     business at a cost that would not have a material adverse effect on the
     Company, except as described in the Prospectus.

               (u)  The Company possesses all certificates, authorizations and
     permits issued by the appropriate federal, state or foreign regulatory
     authorities necessary to conduct its business and the absence of which
     would have a material adverse effect on the Company, and the Company has
     not received any notice of proceedings relating to the revocation or
     modification of any such certificate, authorization or permit which, singly
     or in the aggregate, if the subject of an unfavorable decision, ruling or
     finding, would have a material adverse effect on the Company, except as
     described in the Prospectus.

               (v)  The Company maintains a system of internal accounting
     controls sufficient to provide reasonable assurance that (1) transactions
     are executed in accordance with management's general or specific
     authorizations; (2) transactions are recorded as necessary to permit
     preparation of financial statements in conformity with generally accepted
     accounting principles and to maintain asset accountability; (3) access to
     assets is permitted only in accordance with management's general or
     specific authorization; and (4) the recorded accountability for assets is
     compared with the existing assets at reasonable intervals and appropriate
     action is taken with respect to any differences.

               (w)  Except as described in the Prospectus, there are no
     contracts, agreements or understandings between the Company and any person
     granting such person the right to require the Company to file a
     registration statement under the Securities Act with respect to any
     securities of the Company or to require the Company to include such
     securities with the Shares registered pursuant to the Registration
     Statement.

               (x)  The Registration Statement, the Prospectus and any
     preliminary prospectus comply, and any amendments or supplements thereto
     will comply, with any applicable laws or regulations of foreign
     jurisdictions in which the Prospectus or any preliminary prospectus, as
     amended or supplemented, if applicable, are distributed in connection with
     the Directed Share Program.

               (y)  No consent, approval, authorization or order of, or
     qualification with, any governmental body or agency, other than those
     obtained, is required in connection with the offering of the Directed
     Shares in any jurisdiction where the Directed Shares are being offered.

               (z)  The Company has not offered, or caused Morgan Stanley or its
     affiliates to offer, Shares to any person pursuant to the Directed Share
     Program with the specific intent to unlawfully influence (i) a customer or
     supplier of the Company to alter

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     the customer's or supplier's level or type of business with the Company, or
     (ii) a trade journalist or publication to write or publish favorable
     information about the Company or its products.

               (aa) The financial statements of the Company included in the
     Registration Statement and the Prospectus present fairly in all material
     respects the financial position of the Company as of the dates indicated
     and the results of operation and the changes in financial position of the
     Company for the periods specified (subject, in the case of interim
     financial information, to year-end adjustments); and such financial
     statements have been prepared in conformity with generally accepted
     accounting principles. The summary selected financial information and the
     selected financial data included in the Registration Statement and the
     Prospectus present fairly the information shown therein and have been
     complied on a basis consistent with that of the audited financial
     information included in the Registration Statement and the Prospectus.

               (bb) PricewaterhouseCoopers LLP, who have reported upon the
     audited financial statements of the Company included in the Registration
     Statement and the Prospectus, are, and during the periods covered by this
     report were, to the Company's knowledge, independent with respect to the
     Company as required by the Securities Act.

               (cc) The business of the Company, including processes used by,
     products made or sold by, and research development conducted by the
     Company, does not, to the Company's knowledge after due inquiry, conflict
     with, infringe upon, misappropriate or otherwise violate the intellectual
     property rights of any third party and the Company is not aware of any fact
     or circumstances which would render any technology or intellectual property
     license granted by the Company by a third party invalid, unenforceable or
     liable to cancellation or termination, except where such conflict,
     infringement, misappropriation, violation, invalidity, unenforceability,
     cancellation or termination would not, singly or in the aggregate, have a
     material adverse effect on the Company.

          2.  Agreements to Sell and Purchase. The Company hereby agrees to sell
to the several Underwriters, and each Underwriter, upon the basis of the
representations and warranties herein contained, but subject to the conditions
hereinafter stated, agrees, severally and not jointly, to purchase from the
Company the respective numbers of Firm Shares set forth in Schedule I hereto
opposite its name at $[______] a share (the "Purchase Price").

          On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, the Company agrees to sell
to the Underwriters the Additional Shares, and the Underwriters shall have a
one-time right to purchase, severally and not jointly, up to [1,050,000]
Additional Shares at the Purchase Price.  If you, on behalf of the Underwriters,
elect to exercise such option, you shall so notify the Company in writing not
later than 30 days after the date of this Agreement, which notice shall specify
the number of Additional Shares to be purchased by the Underwriters and the date
on which such shares are to be purchased.  Such date may be the same as the
Closing Date (as defined below) but not earlier than the Closing Date nor later
than ten business days after the date of such notice.  Additional Shares may be
purchased as provided in Section 4 hereof solely for the purpose of covering

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overallotments made in connection with the offering of the Firm Shares.  If any
Additional Shares are to be purchased, each Underwriter agrees, severally and
not jointly, to purchase the number of Additional Shares (subject to such
adjustments to eliminate fractional shares as you may determine) that bears the
same proportion to the total number of Additional Shares to be purchased as the
number of Firm Shares set forth in Schedule I hereto opposite the name of such
Underwriter bears to the total number of Firm Shares.

          The Company hereby agrees that, without the prior written consent of
Morgan Stanley on behalf of the Underwriters, it will not, during the period
ending 180 days after the date of the Prospectus, (i) offer, pledge, sell,
contract to sell, sell any option or contract to purchase, purchase any option
or contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of, directly or indirectly, any shares of Common
Stock or any securities convertible into or exercisable or exchangeable for
Common Stock or (ii) enter into any swap or other arrangement that transfers to
another, in whole or in part, any of the economic consequences of ownership of
the Common Stock, whether any such transaction described in clause (i) or (ii)
above is to be settled by delivery of Common Stock or such other securities, in
cash or otherwise.  The foregoing sentence shall not apply to (A) the Shares to
be sold hereunder, (B) the issuance by the Company of shares of Common Stock
upon the exercise of an option or warrant or the conversion of a security
outstanding on the date hereof described in the Prospectus of which the
Underwriters have been advised in writing or (C) the grant of stock options
pursuant to the Company's existing employee benefit plans described in the
Prospectus provided that either these stock options do not become exercisable
during the 180 day "lockup" period or the grantees of such stock options have
each entered into a "lockup" agreement substantially in the form of Exhibit A
hereto, between you and such grantee, relating to the sales and certain other
dispositions of shares of Common Stock or certain other securities, delivered to
you on or before the date each such option is granted and which shall be in full
force and effect on the date of such grant.

          3.  Terms of Public Offering.  The Company is advised by you that the
Underwriters propose to make a public offering of their respective portions of
the Shares as soon after the Registration Statement and this Agreement have
become effective as in your judgment is advisable.  The Company is further
advised by you that the Shares are to be offered to the public initially at
$[_____________] a share (the "Public Offering Price") and to certain dealers
selected by you at a price that represents a concession not in excess of
$[______] a share under the Public Offering Price, and that any Underwriter may
allow, and such dealers may reallow, a concession, not in excess of $[_____] a
share, to any Underwriter or to certain other dealers.

          4.  Payment and Delivery. Payment for the Firm Shares shall be made to
the Company in Federal or other funds immediately available in New York City
against delivery of such Firm Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on [____________], 2000, or at
such other time on the same or such other date, not later than [_________],
2000, as shall be designated in writing by you. The time and date of such
payment are hereinafter referred to as the "Closing Date".

          Payment for any Additional Shares shall be made to the Company in
Federal or other funds immediately available in New York City against delivery
of such Additional Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on the

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date specified in the notice described in Section 2 or at such other time on the
same or on such other date, in any event not later than [_______], 2000, as
shall be designated in writing by you. The time and date of such payment are
hereinafter referred to as the "Option Closing Date".

          Certificates for the Firm Shares and Additional Shares shall be in
definitive form and registered in such names and in such denominations as you
shall request in writing not later than one full business day prior to the
Closing Date or the Option Closing Date, as the case may be.  The certificates
evidencing the Firm Shares and Additional Shares shall be delivered to you on
the Closing Date or the Option Closing Date, as the case may be, for the
respective accounts of the several Underwriters, with any transfer taxes payable
in connection with the transfer of the Shares to the Underwriters duly paid,
against payment of the Purchase Price therefor.

          5.  Conditions to the Underwriters' Obligations. The obligations of
the Company to sell the Shares to the Underwriters and the several obligations
of the Underwriters to purchase and pay for the Shares on the Closing Date are
subject to the condition that the Registration Statement shall have become
effective not later than [_____] (New York City time) on the date hereof.

          The several obligations of the Underwriters are subject to the
following further conditions:

               (a)  Subsequent to the execution and delivery of this Agreement
     and prior to the Closing Date there shall not have occurred any change, or
     any development involving a prospective change, in the condition, financial
     or otherwise, or in the earnings, business or operations of the Company
     from that set forth in the Prospectus (exclusive of any amendments or
     supplements thereto subsequent to the date of this Agreement) that, in your
     judgment, is material and adverse and that makes it, in your judgment,
     impracticable to market the Shares on the terms and in the manner
     contemplated in the Prospectus.

               (b)  The Underwriters shall have received on the Closing Date a
     certificate, dated the Closing Date and signed by an executive officer of
     the Company, to the effect that the representations and warranties of the
     Company contained in this Agreement are true and correct as of the Closing
     Date and that the Company has complied with all of the agreements and
     satisfied all of the conditions on its part to be performed or satisfied
     hereunder on or before the Closing Date.

          The officer signing and delivering such certificate may rely upon the
best of his or her knowledge as to proceedings threatened.

               (c)  The Underwriters shall have received on the Closing Date an
     opinion of Hale and Dorr LLP, outside counsel for the Company, dated the
     Closing Date, to the effect that:

                      (i)   the Company has been duly incorporated, is validly
          existing as a corporation in good standing under the laws of the
          jurisdiction of its incorporation, has the corporate power and
          authority to own its property and to
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     conduct its business as described in the Prospectus and is duly qualified
     to transact business and is in good standing in the State of Connecticut;

                    (ii)   the authorized capital stock of the Company conforms
     as to legal matters to the description thereof contained in the Prospectus;

                    (iii)  the shares of Common Stock outstanding prior to the
     issuance of the Shares have been duly authorized and are validly issued,
     fully paid and non-assessable;

                    (iv)   the Shares have been duly authorized and, when issued
     and delivered and paid for in accordance with the terms of this Agreement,
     will be validly issued, fully paid and non-assessable, and the issuance of
     such Shares will not be subject to any preemptive or similar rights under
     the Delaware General Corporation Law statute or the Company's certificate
     of incorporation or bylaws or, to such counsel's knowledge, under any other
     agreement to which the Company is a party;

                    (v)    this Agreement has been duly authorized, executed and
     delivered by the Company;

                    (vi)   the execution and delivery by the Company of, and the
     performance by the Company of its obligations under, this Agreement will
     not contravene any provision of applicable law or the certificate of
     incorporation or bylaws of the Company or the agreements set forth in a
     schedule to such counsel's opinion or any judgment, order or decree known
     to such counsel of any governmental body, agency or court having
     jurisdiction over the Company and specifically naming the Company, and no
     consent, approval, authorization or order of, or qualification with, any
     governmental body or agency is required for the performance by the Company
     of its obligations under this Agreement, except such as may be required by
     the securities or Blue Sky laws of the various states in connection with
     the offer and sale of the Shares;

                    (vii)  the statements (A) in the Prospectus under the
     captions "Description of Capital Stock" and "Shares Eligible For Future
     Sale" and the first, second, fourth, seventh, eighth, tenth and eleventh
     paragraphs under the caption "Underwriters" and (B) in the Registration
     Statement in Items 14 and 15, in each case insofar as such statements
     constitute summaries of the legal matters, documents or proceedings
     referred to therein, fairly present the information called for with respect
     to such legal matters, documents and proceedings and fairly summarize the
     matters referred to therein;

                    (viii) such counsel does not know of any legal or
     governmental proceedings pending or threatened to which the Company is a
     party or to which any of the properties of the Company is subject that are
     required by the terms of Form S-1 of the Securities Act to be described in
     the Registration Statement or the Prospectus and are not so described or of
     any statutes, regulations, contracts or

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          other documents that are required by the terms of Form S-1 of the
          Securities Act to be described in the Registration Statement or the
          Prospectus or to be filed as exhibits to the Registration Statement
          that are not described or filed as required;

                    (ix)  the Company is not and, after giving effect to the
          offering and sale of the Shares and the application of the proceeds
          thereof as described in the Prospectus, will not be required to
          register as an "investment company" as such term is defined in the
          Investment Company Act of 1940, as amended; and

                    (x)   the Registration Statement and Prospectus (except for
          the financial statements, including the notes thereto, financial
          schedules or other financial and statistical data included therein as
          to which such counsel need not express any opinion) comply as to form
          in all material respects with the Securities Act and the applicable
          rules and regulations of th e Commission thereunder.

               In addition, such counsel shall state that, in connection with
     the preparation of the Registration Statement and the Prospectus, they have
     participated in conferences with officers and representatives of the
     Company, counsel for the Underwriters and the independent accountants of
     the Company, at which conferences they made inquiries of such persons and
     others and discussed the contents of the Registration Statement and the
     Prospectus; that while the limitations inherent in the independent
     verification of factual matters and the character of determinations
     involved in the registration process are such that they are not passing
     upon and do not assume any responsibility for the accuracy, completeness or
     fairness of the statements contained in the Registration Statement or the
     Prospectus (except as specifically referred to in paragraph (vii) above),
     based on such participation, inquiries and discussions, no facts have come
     to their attention which have caused them to believe that (1) the
     Registration Statement, as of the Effective Date (but after giving effect
     to changes incorporated pursuant to Rule 430A under the Act), contained any
     untrue statement of a material fact or omitted to state any material fact
     required to be stated therein or necessary in order to make the statements
     therein not misleading (except that they need not express any such view
     with respect to the financial statements, including the notes thereto,
     financial schedules or any other financial or statistical information
     included therein), (2) that the Prospectus, as of the date it was filed
     with the Commission pursuant to Rule 424(b)(4) under the Act, contained any
     untrue statement of a material fact or omitted to state any material fact
     necessary in order to make the statements therein, in light of the
     circumstances under which they were made, not misleading (except that they
     need not express any such view with respect to the financial statements,
     including the notes thereto, financial schedules or any other financial or
     statistical information included therein), (3) or that the Registration
     Statement or the Prospectus, as of the date of such opinion, contained any
     untrue statement of a material fact or omitted to state any material fact
     necessary in order to make the statements therein, in light of the
     circumstances under which they were made, not misleading (except that they
     need not express any such view with respect to the financial statements,
     including the notes thereto, financial schedules or any other financial or
     statistical information included therein).

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               The opinion of Hale and Dorr LLP described in Section 5(c) above
     shall be rendered to the Underwriters at the request of the Company and
     shall so state therein.

               (d)  The Underwriters shall have received on the Closing Date an
     opinion, dated the Closing Date, of Cantor Colburn LLP, patent counsel of
     the Company, substantially in the form of Exhibit B hereto.

               (e)  The Underwriters shall have received on the Closing Date an
     opinion of Shearman & Sterling, counsel for the Underwriters, dated the
     Closing Date, in form and substance satisfactory to you.

               (f)  The Underwriters shall have received, on each of the date
     hereof and the Closing Date, a letter dated the date hereof or the Closing
     Date, as the case may be, in form and substance satisfactory to the
     Underwriters, from PricewaterhouseCoopers LLP, independent public
     accountants, containing statements and information of the type ordinarily
     included in accountants' "comfort letters" to underwriters with respect to
     the financial statements and certain financial information contained in the
     Registration Statement and the Prospectus; provided that the letter
     delivered on the Closing Date shall use a "cut-off date" not earlier than
     the date hereof.

               (g)  The "lockup" agreements, each substantially in the form of
     Exhibit A hereto, between you and certain shareholders, officers and
     directors of the Company relating to sales and certain other dispositions
     of shares of Common Stock or certain other securities, delivered to you on
     or before the date hereof, shall be in full force and effect on the Closing
     Date.

               (h)  The Common Stock shall have been approved for quotation on
     the Nasdaq National Market, subject only to official notice of issuance.

               (i)  You shall have received such other documents and
     certificates as are reasonably requested by you or your counsel.

          The several obligations of the Underwriters to purchase Additional
Shares hereunder are subject to the delivery to you on the Option Closing Date
of such documents as you may reasonably request with respect to the good
standing of the Company, the due authorization and issuance of the Additional
Shares and other matters related to the issuance of the Additional Shares.

          6. Covenants of the Company. In further consideration of the
agreements of the Underwriters herein contained, the Company covenants with each
Underwriter as follows:

               (a)  To furnish to you, without charge, four signed copies of the
     Registration Statement (including exhibits thereto) and for delivery to
     each other Underwriter a conformed copy of the Registration Statement
     (without exhibits thereto) and to furnish to you in New York City, without
     charge, prior to 10:00 a.m. New York City time on the business day next
     succeeding the date of this Agreement and during the period mentioned in
     Section 6(c) below, as many copies of the Prospectus and any

                                       12
<PAGE>

     supplements and amendments thereto or to the Registration Statement as you
     may reasonably request.

               (b)  Before amending or supplementing the Registration Statement
     or the Prospectus, to furnish to you a copy of each such proposed amendment
     or supplement and not to file any such proposed amendment or supplement to
     which you reasonably object, and to file with the Commission within the
     applicable period specified in Rule 424(b) under the Securities Act any
     prospectus required to be filed pursuant to such Rule.

               (c)  If, during such period after the first date of the public
     offering of the Shares as in the opinion of counsel for the Underwriters
     the Prospectus is required by law to be delivered in connection with sales
     by an Underwriter or dealer, any event shall occur or condition exist as a
     result of which it is necessary to amend or supplement the Prospectus in
     order to make the statements therein, in the light of the circumstances
     when the Prospectus is delivered to a purchaser, not misleading, or if, in
     the opinion of counsel for the Underwriters, it is necessary to amend or
     supplement the Prospectus to comply with applicable law, forthwith to
     prepare, file with the Commission and furnish, at its own expense, to the
     Underwriters and to the dealers (whose names and addresses you will furnish
     to the Company) to which Shares may have been sold by you on behalf of the
     Underwriters and to any other dealers upon request, either amendments or
     supplements to the Prospectus so that the statements in the Prospectus as
     so amended or supplemented will not, in the light of the circumstances when
     the Prospectus is delivered to a purchaser, be misleading or so that the
     Prospectus, as amended or supplemented, will comply with law.

               (d)  To endeavor to qualify the Shares for offer and sale under
     the securities or Blue Sky laws of such jurisdictions as you shall
     reasonably request.

               (e)  To make generally available to the Company's security
     holders and to you as soon as practicable an earning statement covering the
     twelve-month period ending [September 30], 2001 that satisfies the
     provisions of Section 11(a) of the Securities Act and the rules and
     regulations of the Commission thereunder.

               (f)  Whether or not the transactions contemplated in this
     Agreement are consummated or this Agreement is terminated, to pay or cause
     to be paid all expenses incident to the performance of its obligations
     under this Agreement, including: (i) the fees, disbursements and expenses
     of the Company's counsel and the Company's accountants in connection with
     the registration and delivery of the Shares under the Securities Act and
     all other fees or expenses in connection with the preparation and filing of
     the Registration Statement, any preliminary prospectus, the Prospectus and
     amendments and supplements to any of the foregoing, including all printing
     costs associated therewith, and the mailing and delivering of copies
     thereof to the Underwriters and dealers, in the quantities hereinabove
     specified, (ii) all costs and expenses related to the transfer and delivery
     of the Shares to the Underwriters, including any transfer or other taxes
     payable thereon, (iii) the cost of printing or producing any Blue Sky or
     Legal Investment memorandum in connection with the offer and sale of the
     Shares under state securities laws and all expenses in connection with the
     qualification of the Shares for

                                       13
<PAGE>

     offer and sale under state securities laws as provided in Section 6(d)
     hereof, including filing fees and the reasonable fees and disbursements of
     counsel for the Underwriters in connection with such qualification and in
     connection with the Blue Sky or Legal Investment memorandum, (iv) all
     filing fees and the reasonable fees and disbursements of counsel to the
     Underwriters incurred in connection with the review and qualification of
     the offering of the Shares by the National Association of Securities
     Dealers, Inc., (v) all fees and expenses in connection with the preparation
     and filing of the registration statement on Form 8-A relating to the Common
     Stock and all costs and expenses incident to listing the Shares on the
     Nasdaq National Market, (vi) the cost of printing certificates representing
     the Shares, (vii) the costs and charges of any transfer agent, registrar or
     depositary, (viii) the costs and expenses of the Company relating to
     investor presentations on any "road show" undertaken in connection with the
     marketing of the offering of the Shares, including, without limitation,
     expenses associated with the production of road show slides and graphics,
     fees and expenses of any consultants engaged in connection with the road
     show presentations with the prior approval of the Company, travel and
     lodging expenses of the representatives and officers of the Company and any
     such consultants, and the cost of any aircraft chartered in connection with
     the road show, (ix) all fees and disbursements of counsel incurred by the
     Underwriters in connection with the Directed Share Program and stamp
     duties, similar taxes or duties or other taxes, if any, incurred by the
     Underwriters in connection with the Directed Share Program and (x) all
     other costs and expenses incident to the performance of the obligations of
     the Company hereunder for which provision is not otherwise made in this
     Section. It is understood, however, that except as provided in this
     Section, Section 7 entitled "Indemnity and Contribution", and the last
     paragraph of Section 10 below, the Underwriters will pay all of their costs
     and expenses, including fees and disbursements of their counsel, stock
     transfer taxes payable on resale of any of the Shares by them and any
     advertising expenses connected with any offers they may make.

               (g)  To place stop transfer orders on any Directed Shares that
     have been sold to Participants subject to the three month restriction on
     sale, transfer, assignment, pledge or hypothecation imposed by NASD
     Regulation, Inc. under its Interpretative Material 2110-1 on free-riding
     and withholding to the extent necessary to ensure compliance with the three
     month restrictions.

               (h)  To comply with all applicable securities and other
     applicable laws, rules and regulations in each jurisdiction in which the
     Directed Shares are offered in connection with the Directed Share Program.

          7. Indemnity and Contribution.

               (a)  The Company agrees to indemnify and hold harmless each
     Underwriter and each person, if any, who controls any Underwriter within
     the meaning of either Section 15 of the Securities Act or Section 20 of the
     Securities Exchange Act of 1934, as amended (the "Exchange Act"), from and
     against any and all losses, claims, damages and liabilities (including,
     without limitation, any legal or other expenses reasonably incurred in
     connection with defending or investigating any such action or claim) caused
     by any untrue statement or alleged untrue statement of a material fact

                                       14
<PAGE>

     contained in the Registration Statement or any amendment thereof, any
     preliminary prospectus or the Prospectus (as amended or supplemented if the
     Company shall have furnished any amendments or supplements thereto), or
     caused by any omission or alleged omission to state therein a material fact
     required to be stated therein or necessary to make the statements therein
     not misleading, except insofar as such losses, claims, damages or
     liabilities are caused by any such untrue statement or omission or alleged
     untrue statement or omission based upon information relating to any
     Underwriter furnished to the Company in writing by such Underwriter through
     you expressly for use therein; provided, however, that the foregoing
                                    --------  -------
     indemnity agreement with respect to any preliminary prospectus shall not
     inure to the benefit of any Underwriter from whom the person asserting any
     such losses, claims, damages or liabilities purchased Shares, or any person
     controlling such Underwriter, if a copy of the Prospectus (as then amended
     or supplemented if the Company shall have furnished any amendments or
     supplements thereto) was not sent or given by or on behalf of such
     Underwriter to such person, if required by law so to have been delivered,
     at or prior to the written confirmation of the sale of the Shares to such
     person, and if the Prospectus (as so amended or supplemented) would have
     cured the defect giving rise to such losses, claims, damages or
     liabilities, unless such failure is the result of noncompliance by the
     Company with Section 6(a) hereof.

                    (b)  Each Underwriter agrees, severally and not jointly, to
     indemnify and hold harmless the Company, its directors, its officers who
     sign the Registration Statement and each person, if any, who controls the
     Company within the meaning of either Section 15 of the Securities Act or
     Section 20 of the Exchange Act to the same extent as the foregoing
     indemnity from the Company to such Underwriter, but only with reference to
     information relating to such Underwriter furnished to the Company in
     writing by such Underwriter through you expressly for use in the
     Registration Statement, any preliminary prospectus, the Prospectus or any
     amendments or supplements thereto.

                    (c)  In case any proceeding (including any governmental
     investigation) shall be instituted involving any person in respect of which
     indemnity may be sought pursuant to Section 7(a) or 7(b), such person (the
     "indemnified party") shall promptly notify the person against whom such
     indemnity may be sought (the "indemnifying party") in writing and the
     indemnifying party, upon request of the indemnified party, shall retain
     counsel reasonably satisfactory to the indemnified party to represent the
     indemnified party and any others the indemnifying party may designate in
     such proceeding and shall pay the fees and disbursements of such counsel
     related to such proceeding. In any such proceeding, any indemnified party
     shall have the right to retain its own counsel, but the fees and expenses
     of such counsel shall be at the expense of such indemnified party unless
     (i) the indemnifying party and the indemnified party shall have mutually
     agreed to the retention of such counsel or (ii) the named parties to any
     such proceeding (including any impleaded parties) include both the
     indemnifying party and the indemnified party and representation of both
     parties by the same counsel would be inappropriate due to actual or
     potential differing interests between them. It is understood that the
     indemnifying party shall not, in respect of the legal expenses of any
     indemnified party in connection with any proceeding or related proceedings
     in the same jurisdiction, be liable for the fees and expenses of more than
     one separate firm (in addition to any local counsel) for all such
     indemnified parties and that all such fees and expenses shall be

                                       15
<PAGE>

     reimbursed as they are incurred. Such firm shall be designated in writing
     by Morgan Stanley, in the case of parties indemnified pursuant to Section
     7(a), and by the Company, in the case of parties indemnified pursuant to
     Section 7(b). The indemnifying party shall not be liable for any settlement
     of any proceeding effected without its written consent, but if settled with
     such consent or if there be a final judgment for the plaintiff, the
     indemnifying party agrees to indemnify the indemnified party from and
     against any loss or liability by reason of such settlement or judgment.
     Notwithstanding the foregoing sentence, if at any time an indemnified party
     shall have requested an indemnifying party to reimburse the indemnified
     party for fees and expenses of counsel as contemplated by the second and
     third sentences of this paragraph, the indemnifying party agrees that it
     shall be liable for any settlement of any proceeding effected without its
     written consent if (i) such settlement is entered into more than 30 days
     after receipt by such indemnifying party of the aforesaid request and (ii)
     such indemnifying party shall not have reimbursed the indemnified party in
     accordance with such request prior to the date of such settlement. No
     indemnifying party shall, without the prior written consent of the
     indemnified party, effect any settlement of any pending or threatened
     proceeding in respect of which any indemnified party is or could have been
     a party and indemnity could have been sought hereunder by such indemnified
     party, unless such settlement includes an unconditional release of such
     indemnified party from all liability on claims that are the subject matter
     of such proceeding.

               (d)  To the extent the indemnification provided for in Section
     7(a) or 7(b) is unavailable to an indemnified party or insufficient in
     respect of any losses, claims, damages or liabilities referred to therein,
     then each indemnifying party under such paragraph, in lieu of indemnifying
     such indemnified party thereunder, shall contribute to the amount paid or
     payable by such indemnified party as a result of such losses, claims,
     damages or liabilities (i) in such proportion as is appropriate to reflect
     the relative benefits received by the Company on the one hand and the
     Underwriters on the other hand from the offering of the Shares or (ii) if
     the allocation provided by clause 7(d)(i) above is not permitted by
     applicable law, in such proportion as is appropriate to reflect not only
     the relative benefits referred to in clause 7(d)(i) above but also the
     relative fault of the Company on the one hand and of the Underwriters on
     the other hand in connection with the statements or omissions that resulted
     in such losses, claims, damages or liabilities, as well as any other
     relevant equitable considerations. The relative benefits received by the
     Company on the one hand and the Underwriters on the other hand in
     connection with the offering of the Shares shall be deemed to be in the
     same respective proportions as the net proceeds from the offering of the
     Shares (before deducting expenses) received by the Company and the total
     underwriting discounts and commissions received by the Underwriters, in
     each case as set forth in the table on the cover of the Prospectus, bear to
     the aggregate Public Offering Price of the Shares. The relative fault of
     the Company on the one hand and the Underwriters on the other hand shall be
     determined by reference to, among other things, whether the untrue or
     alleged untrue statement of a material fact or the omission or alleged
     omission to state a material fact relates to information supplied by the
     Company or by the Underwriters and the parties' relative intent, knowledge,
     access to information and opportunity to correct or prevent such statement
     or omission. The Underwriters' respective obligations to

                                       16
<PAGE>

     contribute pursuant to this Section 7 are several in proportion to the
     respective number of Shares they have purchased hereunder, and not joint.

               (e)  The Company and the Underwriters agree that it would not be
     just or equitable if contribution pursuant to this Section 7 were
     determined by pro rata allocation (even if the Underwriters were treated as
     one entity for such purpose) or by any other method of allocation that does
     not take account of the equitable considerations referred to in Section
     7(d). The amount paid or payable by an indemnified party as a result of the
     losses, claims, damages and liabilities referred to in the immediately
     preceding paragraph shall be deemed to include, subject to the limitations
     set forth above, any legal or other expenses reasonably incurred by such
     indemnified party in connection with investigating or defending any such
     action or claim. Notwithstanding the provisions of this Section 7, no
     Underwriter shall be required to contribute any amount in excess of the
     amount by which the total price at which the Shares underwritten by it and
     distributed to the public were offered to the public exceeds the amount of
     any damages that such Underwriter has otherwise been required to pay by
     reason of such untrue or alleged untrue statement or omission or alleged
     omission. No person guilty of fraudulent misrepresentation (within the
     meaning of Section 11(f) of the Securities Act) shall be entitled to
     contribution from any person who was not guilty of such fraudulent
     misrepresentation. The remedies provided for in this Section 7 are not
     exclusive and shall not limit any rights or remedies which may otherwise be
     available to any indemnified party at law or in equity.

               (f)  The indemnity and contribution provisions contained in this
     Section 7 and the representations, warranties and other statements of the
     Company contained in this Agreement shall remain operative and in full
     force and effect regardless of (i) any termination of this Agreement, (ii)
     any investigation made by or on behalf of any Underwriter or any person
     controlling any Underwriter or by or on behalf of the Company, its officers
     or directors or any person controlling the Company and (iii) acceptance of
     and payment for any of the Shares.

          8.  Directed Share Program Indemnification.

               (a)  The Company agrees to indemnify and hold harmless Morgan
     Stanley and its affiliates and each person, if any, who controls Morgan
     Stanley or its affiliates within the meaning of either Section 15 of the
     Securities Act or Section 20 of the Exchange Act ("Morgan Stanley
     Entities"), from and against any and all losses, claims, damages and
     liabilities (including, without limitation, any legal or other expenses
     reasonably incurred in connection with defending or investigating any such
     action or claim) (i) caused by any untrue statement or alleged untrue
     statement of a material fact contained in any material prepared by or with
     the consent of the Company for distribution to Participants in connection
     with the Directed Share Program, or caused by any omission or alleged
     omission to state therein a material fact required to be stated therein or
     necessary to make the statements therein not misleading; (ii) caused by the
     failure of any Participant to pay for and accept delivery of Directed
     Shares that the Participant has agreed to purchase; or (iii) related to,
     arising out of, or in connection with the Directed Share Program other than
     losses, claims, damages or liabilities (or expenses relating

                                       17
<PAGE>

     thereto) that are finally judicially determined to have resulted from the
     bad faith or gross negligence of Morgan Stanley Entities.

               (b)  In case any proceeding (including any governmental
     investigation) shall be instituted involving any Morgan Stanley Entity in
     respect of which indemnity may be sought pursuant to Section 8(a), the
     Morgan Stanley Entity seeking indemnity shall promptly notify the Company
     in writing and the Company, upon request of the Morgan Stanley Entity,
     shall retain counsel reasonably satisfactory to the Morgan Stanley Entity
     to represent the Morgan Stanley Entity and any other indemnified party that
     the party that the Company may designate in such proceeding and shall pay
     the fees and disbursements of such counsel related to such proceeding. In
     any such proceeding, any Morgan Stanley Entity shall have the right to
     retain its own counsel, but the fees and expenses of such counsel shall be
     at the expense of such Morgan Stanley Entity unless (i) the Company shall
     have agreed to the retention of such counsel or (ii) the named parties to
     any such proceeding (including any impleaded parties) include both the
     Company and the Morgan Stanley Entity and representation of both parties by
     the same counsel would be inappropriate due to actual or potential
     differing interests between them. The Company shall not, in respect of the
     legal expenses of the Morgan Stanley Entities in connection with any
     proceeding or related proceedings in the same jurisdiction, be liable for
     the fees and expenses of more than one separate firm (in addition to any
     local counsel) for all Morgan Stanley Entities. Any such firm for the
     Morgan Stanley Entities shall be designated in writing by Morgan Stanley.
     The Company shall not be liable for any settlement of any proceeding
     effected without its written consent, but if settled with such consent or
     if there be a final judgment for the plaintiff, the Company agrees to
     indemnify the Morgan Stanley Entities from and against any loss or
     liability by reason of such settlement or judgment. Notwithstanding the
     foregoing sentence, if at any time a Morgan Stanley Entity shall have
     requested the Company to reimburse it for fees and expenses of counsel as
     contemplated by the second and third sentences of this paragraph, the
     Company agrees that it shall be liable for any settlement of any proceeding
     effected without its written consent if (i) such settlement is entered into
     more than 30 days after receipt by the Company of the aforesaid request and
     (ii) the Company shall not have reimbursed the Morgan Stanley Entity in
     accordance with such request prior to the date of such settlement. The
     Company shall not, without prior written consent of Morgan Stanley, effect
     any settlement of any pending or threatened proceeding in respect of which
     any Morgan Stanley Entity is or could have been a party and indemnity could
     have been sought hereunder by such Morgan Stanley Entity, unless such
     settlement includes an unconditional release of the Morgan Stanley Entities
     from all liability on claims that are the subject matter of such
     proceeding.

               (c)  To the extent the indemnification provided for in Section
     8(a) is unavailable to a Morgan Stanley Entity or insufficient in respect
     of any losses, claims, damages or liabilities referred to therein, then the
     Company, in lieu of indemnifying the Morgan Stanley Entity thereunder,
     shall contribute to the amount paid or payable by the Morgan Stanley Entity
     as a result of such losses, claims, damages or liabilities (i) in such
     proportion as is appropriate to reflect the relative benefits received by
     the Company on the one hand and the Morgan Stanley Entities on the other
     hand from the offering of the Directed Shares or (ii) if the allocation
     provided by clause 8(c)(i) above is not permitted

                                       18
<PAGE>

     by applicable law, in such proportion as is appropriate to reflect not only
     the relative benefits referred to in clause 8(c)(i) above but also the
     relative fault of the Company on the one hand and of the Morgan Stanley
     Entities on the other hand in connection with the statements or omissions
     that resulted in such losses, claims, damages or liabilities, as well as
     any other relevant equitable considerations. The relative benefits received
     by the Company on the one hand and of the Morgan Stanley Entities on the
     other hand in connection with the offering of the Directed Shares shall be
     deemed to be in the same respective proportions as the net proceeds from
     the offering of the Directed Shares (before deducting expenses) and the
     total underwriting discounts and commissions received by the Morgan Stanley
     Entities for the Directed Shares, bear to the aggregate Public Offering
     Price of the Shares. If the loss, claim, damage or liability is caused by
     an untrue or alleged untrue statement of a material fact, the relative
     fault of the Company on the one hand and the Morgan Stanley Entities on the
     other hand shall be determined by reference to, among other things, whether
     the untrue or alleged untrue statement or the omission or alleged omission
     relates to information supplied by the Company or by the Morgan Stanley
     Entities and the parties' relative intent, knowledge, access to information
     and opportunity to correct or prevent such statement or omission.

               (d)  The Company and the Morgan Stanley Entities agree that it
     would not be just or equitable if contribution pursuant to this Section 8
     were determined by pro rata allocation (even if the Morgan Stanley Entities
     were treated as one entity for such purpose) or by any other method of
     allocation that does not take account of the equitable considerations
     referred to in Section 8(c). The amount paid or payable by the Morgan
     Stanley Entities as a result of the losses, claims, damages and liabilities
     referred to in the immediately preceding paragraph shall be deemed to
     include, subject to the limitations set forth above, any legal or other
     expenses reasonably incurred by the Morgan Stanley Entities in connection
     with investigating or defending any such action or claim. Notwithstanding
     the provisions of this Section 8, no Morgan Stanley Entity shall be
     required to contribute any amount in excess of the amount by which the
     total price at which the Directed Shares distributed to the public were
     offered to the public exceeds the amount of any damages that such Morgan
     Stanley Entity has otherwise been required to pay by reason of such untrue
     or alleged untrue statement or omission or alleged omission. The remedies
     provided for in this Section 8 are not exclusive and shall not limit any
     rights or remedies which may otherwise be available to any Morgan Stanley
     Entity at law or in equity.

               (e)  The indemnity and contribution provisions contained in this
     Section 8 shall remain operative and in full force and effect regardless of
     (i) any termination of this Agreement, (ii) any investigation made by or on
     behalf of any Morgan Stanley Entity or the Company, its officers or
     directors or any person controlling the Company and (iii) acceptance of any
     payment of any of the Directed Shares.

          9.  Termination. This Agreement shall be subject to termination by
notice given by you to the Company, if (a) after the execution and delivery of
this Agreement and prior to the Closing Date (i) trading generally shall have
been suspended or materially limited on or by, as the case may be, any of the
New York Stock Exchange, the American Stock Exchange, the National Association
of Securities Dealers, Inc., the Chicago Board of Options Exchange, the

                                       19
<PAGE>

Chicago Mercantile Exchange or the Chicago Board of Trade, (ii) trading of any
securities of the Company shall have been suspended on any exchange or in any
overthecounter market, (iii) a general moratorium on commercial banking
activities in New York shall have been declared by either Federal or New York
State authorities or (iv) there shall have occurred any outbreak or escalation
of hostilities or any change in financial markets or any calamity or crisis
that, in your judgment, is material and adverse and (b) in the case of any of
the events specified in clauses 9(a)(i) through 9(a)(iv), such event, singly or
together with any other such event, makes it, in your judgment, impracticable to
market the Shares on the terms and in the manner contemplated in the Prospectus.

          10.  Effectiveness; Defaulting Underwriters. This Agreement shall
become effective upon the execution and delivery hereof by the parties hereto.

          If, on the Closing Date or the Option Closing Date, as the case may
be, any one or more of the Underwriters shall fail or refuse to purchase Shares
that it has or they have agreed to purchase hereunder on such date, and the
aggregate number of Shares which such defaulting Underwriter or Underwriters
agreed but failed or refused to purchase is not more than one-tenth of the
aggregate number of the Shares to be purchased on such date, the other
Underwriters shall be obligated severally in the proportions that the number of
Firm Shares set forth opposite their respective names in Schedule I bears to the
aggregate number of Firm Shares set forth opposite the names of all such non-
defaulting Underwriters, or in such other proportions as you may specify, to
purchase the Shares which such defaulting Underwriter or Underwriters agreed but
failed or refused to purchase on such date; provided that in no event shall the
number of Shares that any Underwriter has agreed to purchase pursuant to this
Agreement be increased pursuant to this Section 10 by an amount in excess of
one-ninth of such number of Shares without the written consent of such
Underwriter.  If, on the Closing Date, any Underwriter or Underwriters shall
fail or refuse to purchase Firm Shares and the aggregate number of Firm Shares
with respect to which such default occurs is more than one-tenth of the
aggregate number of Firm Shares to be purchased, and arrangements satisfactory
to you and the Company for the purchase of such Firm Shares are not made within
36 hours after such default, this Agreement shall terminate without liability on
the part of any non-defaulting Underwriter or the Company.  In any such case
either you or the Company shall have the right to postpone the Closing Date, but
in no event for longer than seven days, in order that the required changes, if
any, in the Registration Statement and in the Prospectus or in any other
documents or arrangements may be effected.  If, on the Option Closing Date, any
Underwriter or Underwriters shall fail or refuse to purchase Additional Shares
and the aggregate number of Additional Shares with respect to which such default
occurs is more than one-tenth of the aggregate number of Additional Shares to be
purchased, the non-defaulting Underwriters shall have the option to (i)
terminate their obligation hereunder to purchase Additional Shares or (ii)
purchase not less than the number of Additional Shares that such non-defaulting
Underwriters would have been obligated to purchase in the absence of such
default.  Any action taken under this paragraph shall not relieve any defaulting
Underwriter from liability in respect of any default of such Underwriter under
this Agreement.

          If this Agreement shall be terminated by the Underwriters, or any of
them, because of any failure or refusal on the part of the Company to comply
with the terms or to fulfill any of the conditions of this Agreement, or if for
any reason the Company shall be unable to perform its obligations under this
Agreement, the Company will reimburse the Underwriters or

                                       20
<PAGE>

such Underwriters as have so terminated this Agreement with respect to
themselves, severally, for all out-of-pocket expenses (including the fees and
disbursements of their counsel) reasonably incurred by such Underwriters in
connection with this Agreement or the offering contemplated hereunder.

          11.  Counterparts. This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

          12.  Applicable Law. This Agreement shall be governed by and construed
in accordance with the internal laws of the State of New York.

                                       21
<PAGE>

          13.  Headings. The headings of the sections of this Agreement have
been inserted for convenience of reference only and shall not be deemed a part
of this Agreement.

                               Very truly yours,

                               Proton Energy Systems, Inc.

                               By:____________________________
                                  Name:
                                  Title:



Accepted as of the date hereof

Morgan Stanley & Co. Incorporated
Salomon Smith Barney Inc.
Credit Suisse First Boston Corporation

Acting severally on behalf
 of themselves and the
 several Underwriters named
 in Schedule I hereto.

By: Morgan Stanley & Co. Incorporated

          By:__________________________
             Name:
             Title:

                                       22
<PAGE>

                                                                      SCHEDULE I



                                                          Number of
                                                         Firm Shares
        Underwriter                                    To Be Purchased

Morgan Stanley & Co. Incorporated

Salomon Smith Barney Inc.

Credit Suisse First Boston Corporation

[NAMES OF OTHER UNDERWRITERS]



                                         _______________
                    Total ........
                                         ===============

                                       23
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                                                                       Exhibit A

                            [FORM OF LOCK-UP LETTER]

                                                             ____________ , 2000

Morgan Stanley & Co. Incorporated
Salomon Smith Barney Inc.
Credit Suisse First Boston Corporation
c/o Morgan Stanley & Co. Incorporated
1585 Broadway
New York, NY  10036

Dear Sirs and Mesdames:

          The undersigned understands that Morgan Stanley & Co. Incorporated
("Morgan Stanley") proposes to enter into an Underwriting Agreement (the
"Underwriting Agreement") with Proton Energy Systems, Inc., a  Delaware
corporation (the "Company") providing for the public offering (the "Public
Offering") by the several Underwriters, including Morgan Stanley (the
"Underwriters"), of shares (the "Shares") of the Common Stock, $0.01 par value,
of the Company (the "Common Stock").

          To induce the Underwriters that may participate in the Public Offering
to continue their efforts in connection with the Public Offering, the
undersigned hereby agrees that, without the prior written consent of Morgan
Stanley on behalf of the Underwriters, it will not, during the period commencing
on the date hereof and ending 180 days after the date of the final prospectus
relating to the Public Offering (the "Prospectus"), (1) offer, pledge, sell,
contract to sell, sell any option or contract to purchase, purchase any option
or contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of, directly or indirectly, any shares of Common
Stock or any securities convertible into or exercisable or exchangeable for
Common Stock or (2) enter into any swap or other arrangement that transfers to
another, in whole or in part, any of the economic consequences of ownership of
Common Stock, whether any such transaction described in clause (1) or (2) above
is to be settled by delivery of Common Stock or such other securities, in cash
or otherwise.  The foregoing sentence shall not apply to (a) the sale of any
Shares to the Underwriters pursuant to the Underwriting Agreement or (b)
transactions relating to shares of Common Stock or other securities acquired in
open market transactions after the completion of the Public Offering.  In
addition, the undersigned agrees that, without the prior written consent of
Morgan Stanley on behalf of the Underwriters, it will not, during the period
commencing on the date hereof and ending 180 days after the date of the
Prospectus, make any demand for or exercise any right with respect to, the
registration of any shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock.  The undersigned also agrees and
consents to the entry of stop transfer instructions with the Company's transfer
agent and registrar against the transfer of the undersigned's shares of Common
Stock except in compliance with the foregoing restrictions.

          Notwithstanding the foregoing restrictions on transfer, the
undersigned shall be permitted to make the following transfers; (i) transfers
made by gift, will or intestacy; (ii)

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transfer to the transferor's affiliates, as such term is defined in Rule 405
promulgated under the Securities Act of 1933, as amended; (iii) in the event the
undersigned is an individual, transfer to his or her immediate family or to a
trust the beneficiaries of which are exclusively the undersigned or a member of
his or her immediate family; and (iv) in the event the undersigned is a
partnership or a limited liability company, transfers to the partners of such
partnership or the members of such limited liability company, as the case may
be, provided, that in the case of such transfer (x) the donee or transferee
agrees in writing to be bound by the terms hereof in the same manner as it
applies to the undersigned and (y) if the donor or transferor is a reporting
person subject to Section 16(a) of the Securities Exchange Act of 1934 (the
"Exchange Act"), any gifts or transfers made in accordance with this paragraph
shall not require such person to, and such person shall not voluntarily, file a
report of such transaction on Form 4 under the Exchange Act.

          The undersigned understands that the Company and the Underwriters are
relying upon this Lock-Up Agreement in proceeding toward consummation of the
Public Offering.  The undersigned further understands that this Lock-Up
Agreement is irrevocable and shall be binding upon the undersigned's heirs,
legal representatives, successors and assigns.

          This instrument shall terminate if the Underwriting Agreement (other
than the provisions thereof that survive termination) shall terminate or be
terminated prior to payment for the delivery of the shares thereunder or is such
Underwriting Agreement is not executed by each party thereto on or prior to
October 31, 2000

          Whether or not the Public Offering actually occurs depends on a number
of factors, including market conditions.  Any Public Offering will only be made
pursuant to an Underwriting Agreement, the terms of which are subject to
negotiation between the Company and the Underwriters.

                                                  Very truly yours,

                                                  _______________________
                                                  (Name)

                                                  _______________________
                                                  (Address)

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