Document:

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                                                                   Exhibit 10.19

                               EVOKE INCORPORATED

                  Series E Preferred Stock Purchase Agreement

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                               Table of Contents

                                                                            Page

1.   Agreement To Sell And Purchase........................................... 1

     1.1  Authorization of Shares............................................. 1

     1.2  Sale and Purchase................................................... 1

2.   Closing, Delivery And Payment............................................ 1

     2.1  Closing............................................................. 1

3.   Representations And Warranties Of The Company............................ 2

     3.1  Organization, Good Standing and Qualification....................... 2

     3.2  Capitalization...................................................... 2

     3.3  Subsidiaries........................................................ 3

     3.4  Authorization; Binding Obligations.................................. 3

     3.5  Consents and Approvals.............................................. 3

     3.6  No Violations....................................................... 3

     3.7  Financial Statements; Interim Changes............................... 4

     3.8  Compliance with Laws................................................ 4

     3.9  Proprietary Rights.................................................. 4

     3.10  Actions Pending.................................................... 5

     3.11  Material Contracts................................................. 5

     3.12  Investments in United States Real Property Interests............... 5

     3.13  Unrelated Business Taxable Income.................................. 6

     3.14  Taxes.............................................................. 6

     3.15  Real Property...................................................... 6

     3.16  Insurance Coverage................................................. 7

     3.17  Employees and Actions.............................................. 7

     3.18  No Brokers or Finders.............................................. 7

     3.19  Alliances, etc..................................................... 8

     3.20  ERISA.............................................................. 8

     3.21  Full Disclosure................................................... 10

     3.22  Securities Laws................................................... 10

     3.23  Inventions Assignment and Confidentiality Agreement............... 11

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     3.24  Interested Party Transactions..................................... 11

     3.25  Environmental Matters............................................. 11

     3.26  Company Status.................................................... 11

4.   Representations And Warranties Of The Purchasers........................ 11

     4.1  Requisite Power and Authority...................................... 12

     4.2  Investment Representations......................................... 12

5.   Conditions Precedent To Purchasers' Obligations......................... 14

6.   Miscellaneous........................................................... 16

     6.1   Definitions....................................................... 16

     6.2   Governing Law..................................................... 16

     6.3   Survival.......................................................... 16

     6.4   Successors and Assigns............................................ 17

     6.5   Entire Agreement.................................................. 17

     6.6   Specific Enforcement.............................................. 17

     6.7   Separability...................................................... 17

     6.8   Amendment and Waiver.............................................. 17

     6.9   Notices........................................................... 17

     6.10  Counterparts...................................................... 18

     6.11  Broker's Fees..................................................... 18

     6.12  Future Financings................................................. 18

     6.13  Confidentiality and Non-Disclosure................................ 18

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                  Series E Preferred Stock Purchase Agreement

     This Series E Preferred Stock Purchase Agreement (the "Agreement") is
entered into as of March 29, 2000, by and among Evoke Incorporated, a Delaware
corporation (the "Company"), and each of those persons and entities, severally
and not jointly, whose names are set forth on Exhibit B attached hereto
(collectively the "Purchasers" and individually a "Purchaser").  Capitalized
terms not otherwise defined herein are defined in Section 7.1.

     In consideration of the mutual promises hereinafter set forth, the parties
hereto agree as follows:

1.   Agreement To Sell And Purchase

1.1  Authorization of Shares.  On or prior to the  Closing (as defined in
Section 2 below), the Company shall have authorized the sale and issuance to the
Purchasers of shares of its Series E Convertible Preferred Stock (the "Shares")
having the rights, preferences, privileges and restrictions set forth in the
Amended and Restated Certificate of Incorporation of the Company, attached
hereto as Exhibit A (the "Certificate").

1.2  Sale and Purchase.  Subject to the terms and conditions hereof, at the
Closing the Company hereby agrees to issue and sell to each Purchaser and each
Purchaser severally and not jointly agrees to purchase from the Company, the
number of Shares set forth opposite such Purchaser's name on Exhibit B, at a
purchase price of Seven Dollars Twenty Eight Cents ($7.28) per Share.

2.   Closing, Delivery And Payment

2.1  Closing.  The  closing (the "Closing") shall take place at the offices
of Cooley Godward LLP at 10:00 a.m. (Mountain Daylight Time) on March 29, 2000
or at such other place and on such other date as may be mutually agreeable to
the Company and a majority of the Purchasers upon the satisfaction or waiver of
the conditions set forth in Section 5 herein.    At the  Closing, subject to the
terms and conditions hereof, the Company will deliver to the Purchasers
certificates representing the number of Shares to be purchased at the Closing by
each Purchaser as set forth on Exhibit B hereto, against payment of the purchase
price therefor by check or wire transfer of immediately available funds.

3.   Representations And Warranties Of The Company

     The Company hereby represents and warrants to each Purchaser that except as
set forth on the Disclosure Schedule attached hereto, which shall be deemed
representations and warranties as if made hereunder:

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3.1  Organization, Good Standing and Qualification.  The Company is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware.  The Company has all requisite corporate power and
authority to own and operate its properties and assets, to execute and deliver
each of the Stockholders' Agreement, to issue and sell the Shares and the shares
of the Company's common stock, $.001 par value (the "Common Stock") issuable
upon conversion thereof (the "Conversion Shares"), to carry out the other
provisions of this Agreement and the Stockholders Agreement, and to carry on its
business as presently conducted and as presently proposed to be conducted. The
Company is qualified to do business as a foreign corporation and is in good
standing in all jurisdictions in which it is required to be so qualified to do
business as currently conducted and presently proposed to be conducted by the
Company, except for in such jurisdictions in which the failure to so qualify
would not reasonably be expected to have a material adverse effect on the
business or operations of the Company.

3.2  Capitalization.  The authorized capital stock of the Company, immediately
prior to the Closing, will consist of ninety seven million (97,000,000) shares
of Common Stock, one million two hundred five thousand six hundred ninety nine
(1,205,699) shares of which are issued and outstanding, and fifty three million
(53,000,000) shares of preferred stock, of which (i) five million twenty-five
thousand (5,025,000) shares are designated Series A Convertible Preferred Stock,
all of which are issued and outstanding, (ii) ten thousand, six hundred thirty-
five (10,635) shares are designated Series B Convertible Preferred Stock, all of
which are issued and outstanding,  (iii) ten million (10,000,000) shares are
designated Series C Convertible Preferred Stock, nine million nine hundred fifty
three thousand nine hundred and thirty five (9,953,935) of which are issued and
outstanding, (iv) thirty four million (34,000,000) shares are designated Series
D Convertible Preferred Stock, thirty three million three hundred thirty three
thousand three hundred thirty three (33,333,333) of which are issued and
outstanding and (v) three million (3,000,000) shares of Series E Convertible
Preferred Stock, none of which are issued and outstanding.  (The Series A
Convertible Preferred Stock, the Series B Convertible Preferred Stock, the
Series C Convertible Preferred Stock, the Series D Convertible Preferred Stock
and the Series E Convertible Preferred Stock are collectively referred to as the
"Preferred Stock".)  All issued and outstanding shares of the Company's Common
Stock, Series A Convertible Preferred Stock, Series B Convertible Preferred
Stock, Series C Convertible Preferred Stock and Series D Convertible Preferred
Stock have been duly authorized and validly issued and are fully paid and
nonassessable.  Except as set forth in  Schedule 3.2, there are no outstanding
options, warrants or other rights to purchase from the Company any of its
securities.  Except as set forth in Schedule 3.2 of the Disclosure Schedule, no
shares of the Company's outstanding capital stock, or stock issuable upon
exercise or exchange of any outstanding options, warrants or rights, or other
stock issuable by the Company, are subject to any preemptive rights, rights of
first refusal or other rights to purchase such stock (whether in favor of the
Company or any other person) pursuant to any agreement or commitment of the
Company.

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3.3  Subsidiaries.  The Company does not presently own or control, directly or
indirectly, any interest in any other corporation, partnership, trust, joint
venture, association or other entity.

3.4  Authorization; Binding Obligations.  All corporate action on the part of
the Company, its officers, directors and stockholders necessary for the
authorization of this Agreement, the performance of all obligations of the
Company hereunder and under the Stockholders' Agreement and for the
authorization, sale, issuance and delivery of the Shares has been taken or will
be taken at or prior to the Closing.  When issued in compliance with the
provisions of this Agreement , the Shares will be validly issued, fully paid and
nonassessable.  The Conversion Shares have been duly and validly reserved for
issuance and, when issued upon conversion of the Series E Preferred Stock in
accordance with the terms of the Certificate, will be validly issued, fully paid
and nonassessable.  The Stockholders' Agreement have been duly executed by the
Company and constitute valid and binding obligations of the Company enforceable
in accordance with their terms except (i) as limited by applicable bankruptcy,
reorganization, insolvency, moratorium and similar laws affecting the rights of
creditors generally (ii) as limited by laws relating to the availability of
specific performance, injunctive relief or other equitable remedies and (iii) to
the extent the indemnification provision contained in the Stockholders Agreement
may be limited by applicable federal or state securities laws.

3.5  Consents and Approvals.  No filings with, notices to, or approvals of any
governmental or regulatory body are required to be obtained or made by the
Company in connection with the consummation of the transactions contemplated
hereby except for filings pursuant to state and federal securities laws (all of
which have been made by the Company, other than those which are required to be
made after the Closing and which will be duly made on a timely basis).

3.6  No Violations.  The execution and delivery of this Agreement and the
Stockholders' Agreement and the performance by the Company of its obligations
hereunder and thereunder (i) do not and will not conflict with or violate any
provision of the certificate of incorporation, as amended, (including the
Certificate), or bylaws of the Company and (ii) do not and will not (a) conflict
with or result in a breach of the terms, conditions or provisions of, (b)
constitute a default under, (c) result in the creation of any encumbrance upon
the capital stock or assets of the Company pursuant to, (d) give any third party
the right to modify, terminate or accelerate any obligation under, (e) result in
a violation of, or (f) require any authorization, consent, approval, exemption
or other action by or notice to any court or administrative or governmental body
or other third party pursuant to, any law, statute, rule or regulation or any
agreement or instrument or any order, judgment or decree to which the Company is
subject or by which any of its assets are bound which would have a material
adverse effect on the business, assets, financial condition or operations of the
Company.

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3.7  Financial Statements; Interim Changes.  The Company's audited balance
sheet as of December 31, 1999 and audited statements of operations and cash
flows of the Company for the 12-month period ended December 31, 1999 (the
"Latest Balance Sheet") delivered to the Purchasers in connection with the
investment contemplated hereby have been prepared in accordance with generally
accepted accounting principles consistently applied (subject to normal year-end
adjustments) and fairly present in all material respects the financial position
and the results of operations of the Company for the period covered thereby, and
the Company has no material liabilities or obligations of any nature (absolute,
accrued, contingent or otherwise) that are not either reflected or fully
reserved against on the Latest Balance Sheet or incurred in the ordinary course
of the business of the Company subsequent to the date thereof.  Since the date
of the Latest Balance Sheet, there has not been any material adverse change in
the business, operations, or financial condition  as presently conducted or
presently proposed to be conducted by the Company (a "Material Adverse Change").

3.8  Compliance with Laws.   The Company is not in violation or default of any
provisions of its Certificate of Incorporation or Bylaws, both as amended to-
date.  The Company's business has been conducted in compliance with all
applicable laws and regulations of governmental authorities, except for such
violations that have been cured or that, individually or in the aggregate, may
not reasonably be expected to have a Material Adverse Change.

3.9  Proprietary Rights.  Section 3.9 of the Disclosure Schedule contains a
complete and accurate list of (i) all patented and registered Proprietary Rights
owned by the Company, (ii) all pending patent applications and applications for
registrations of other Proprietary Rights filed by the Company, (iii) all
unregistered trade names and corporate names owned or used by the Company and
(iv) all unregistered trademarks, service marks and copyrights and computer
software, which are material to the financial condition, operating results,
assets, operations or business  of the Company.    Section 3.9 of the Disclosure
Schedule also contains a complete and accurate list of all licenses and other
rights granted by the Company to any third party with respect to any Proprietary
Rights and all licenses and other rights granted by any third party to the
Company with respect to any Proprietary Rights, except for "shrink-wrapped" or
similar licenses granted to the Company by third parties for software used in
the business of the Company that is generally commercially available.  The
Company owns or has the right to use pursuant to a valid license all Proprietary
Rights necessary for the operation of the businesses of the Company as presently
conducted and as presently proposed to be conducted.  To the Company's
knowledge, no loss or expiration of any Proprietary Right or related group of
Proprietary Rights is threatened, pending or expected.  The Company has taken
all reasonably necessary actions to maintain and protect the Proprietary Rights
which it owns and uses.  The Company has no reason (without having conducted any
special investigation) to believe that the owners of any Proprietary Rights
licensed to the Company have not taken actions necessary to maintain and protect
the Proprietary Rights which are subject to such licenses.  Except

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as indicated on Section 3.9 of the Disclosure Schedule, (i) the Company owns all
right, title, and interest in and to or has the right to use under a valid
license all of the Proprietary Rights listed on such schedule and all other
Proprietary Rights material to the operation of the business of the Company,
(ii) there have been no claims made against the Company asserting the
invalidity, misuse or unenforceability of any of such rights and to the
Company's knowledge, none is threatened, (iii) the Company has not received a
notice of conflict with the asserted rights of others, and (iv) to the knowledge
of the Company (without having conducted a special investigation or patent
search) the conduct of the Company's business has not infringed or
misappropriated and does not infringe or misappropriate any Proprietary Rights
of other Persons, and, to the Company's knowledge, the Proprietary Rights owned
by the Company have not been infringed or misappropriated by other Persons.

3.10  Actions Pending.  Except as set forth in Schedule 3.10 of the Disclosure
Schedule, there is no action, suit or proceeding pending or, to the knowledge of
the Company, threatened against or affecting the Company or any of its
respective properties or rights before any court or by or before any
governmental body or arbitration board or tribunal.

3.11  Material Contracts.  Except as set forth on Schedule 3.11 of the
Disclosure Schedule, the Company is not a party to (and is not otherwise bound
by) any of the following: (i) any employment or consulting contract, (ii) any
agreement providing for the issuance or repurchase of any securities of the
Company, (iii) any agreement in respect of registration rights, preemptive
rights, rights of first refusal, voting rights or other rights of security
holders, (iv) any agreement evidencing or providing for any indebtedness for
borrowed money, or (v) any other agreement that could reasonably be deemed
material to the Company.

3.12  Investments in United States Real Property Interests. The Company's
capital stock does not constitute a United States real property interest as that
term is defined in Section 897(c)(1)(A)(ii) of the Internal Revenue Code of
1986, as amended (the "Code"). The preceding representation is based on a
determination by the Company that the Company is not and has not been a United
States real property holding corporation (as that term is defined in Section
897(c)(2) of the Code) ("USRPHC") during the five (5) year period preceding the
date of this Agreement. From time to time, upon request of any Purchaser, the
Company shall make a determination as to its status as a USRPHC. If at any time
in the future the Company should become a USRPHC, the Company shall, as promptly
as possible, notify each Purchaser of such change in status.

3.13  Unrelated Business Taxable Income.  Any gross income derived by the
Purchasers from the Company shall be in the form of dividends, interest, capital
gains and losses from the disposition of property, and rents and royalties, but
only such rents and royalties as are excluded pursuant to Code Sections
512(b)(2) and 512(b)(3), respectively, in calculating unrelated business taxable
income and only such dividends,

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interest, capital gains and losses, and rents and royalties that are not
included under Section 512(b)(4) of the Code in calculating unrelated business
taxable income.

3.14 Taxes.  The Company has filed all tax returns (including statements of
estimated taxes owed) required to be filed within the applicable periods for
such filings and has paid all taxes required to be paid (other than those
contested in good faith for which adequate reserves have been established), and
has established adequate reserves (net of estimated tax payments already made)
for the payment of all taxes payable in respect of the period subsequent to the
last periods covered by such returns. There is no pending dispute with any
taxing authority relating to any of such returns and the Company has not
received notice of any proposed liability for any tax to be imposed upon the
properties or assets of the Company. No deficiencies for any tax are currently
assessed against the Company, and no tax returns of the Company have ever been
audited, and, to the knowledge of the Company, there is no such audit pending or
threatened. There is no tax lien, whether imposed by any federal, state or local
taxing authority, outstanding against the assets, properties or business of the
Company or its predecessor, except such liens for taxes not yet due and payable
as may accrue in the ordinary course of business and for which the Company has
established reasonable reserve and as would not, in any case, constitute a
Material Adverse Change.

3.15  Real Property.

          (a)  The Disclosure Schedule sets forth the addresses and uses of all
real property that the Company owns, leases or subleases, and any material lien
or encumbrance on any such owned real property or the Company's leasehold
interest therein, specifying in the case of each such lease or sublease, the
name of the lessor or sublessor, as the case may be, and the lease term. Copies
of all leases have been provided to special counsel to the Purchasers.

          (b)  The Company has good and marketable title to, and owns free and
clear of all liens and encumbrances, all property listed as owned by the Company
on the Disclosure Schedule, and, to the knowledge of the Company, there is no
material violation of any law, regulation or ordinance (including without
limitation laws, regulations or ordinances relating to zoning, environmental,
city planning or similar matters) relating to any real property owned, leased or
subleased by the Company. With respect to the property it leases, the Company is
in compliance with all such leases and, to its knowledge, holds a valid
leasehold interest free of any liens, claims or encumbrances.

          (c)  There are no defaults by the Company or, to the knowledge of the
Company, by any other party thereto, which might curtail in any material respect
the current use of the Company's property listed on the Disclosure Schedule.
Except for property sold or otherwise disposed of in the ordinary course of
business since December 31, 1999, the Company owns free and clear of any liens
or encumbrances, all of the personal property reflected as owned by the Company
in the latest Balance Sheet,

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and all other material items of personal property acquired by the Company
through the date hereof. All material items of such personal property are in
good operating condition, normal wear and tear excepted.

3.16  Insurance Coverage.  The Disclosure Schedule contains an accurate summary
of the insurance policies currently maintained by the Company. There are
currently no claims in excess of $50,000 in the aggregate pending against the
Company under any insurance policies currently in effect and covering the
property, business or employees of the Company, and all premiums due and payable
with respect to the policies maintained by the Company have been paid to date.

3.17  Employees and Actions.  The Company is not bound by or subject to (and
none of its assets or properties are bound by or subject to) any contract,
commitment or arrangement with any labor union, and no labor union has requested
or, to the knowledge of the Company, has sought to represent any of the
employees, representatives or agents of the Company. There is no strike or other
labor dispute involving the Company pending, or to the knowledge of the Company
threatened, which could constitute a Material Adverse Change, nor is the Company
aware of any labor organization activity involving its employees. The Company is
not aware that any officer or key employee, or that any group of key employees,
intends to terminate his, her or its employment with the Company, nor does the
Company have a current intention to terminate the employment of any of the
foregoing. Subject to general principles related to wrongful termination of
employees, the employment of each officer and employee of the Company is
terminable at the will of the Company. Except as set forth on the Disclosure
Schedule, there are no employment, consulting or management agreements covering
the management of t he Company.

3.18  No Brokers or Finders.  No person has or will have, as a result of the
transactions contemplated by this Agreement, any right, interest or claim
against or upon the Company for any commission, fee or other compensation as a
finder or broker because of any act or omission by the Company.

3.19  Alliances, etc.  Except as set forth on the Disclosure Schedule, the
Company is not engaged in any joint venture or partnership with any other
Person.

3.20  ERISA                        .

          (a)  Schedule 3.21 sets forth:  (i) all "employee benefit plans", as
defined in Section 3(3) of the Employee Retirement Security Act of 1974, as
amended, and the rules and regulations promulgated thereunder ("ERISA"), and
any other employee benefit arrangements or payroll practices, including, without
limitation, severance pay, sick leave, vacation pay, salary continuation for
disability, consulting or other compensation agreements, retirement, deferred
compensation, bonus, stock purchase, hospitalization, medical insurance, life
insurance and scholarship programs (the "Plans") maintained by Company or to
which Company contributed or is obligated

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to contribute thereunder, and (ii) all "employee pension plans", as defined in
Section 3(2) of ERISA (the "Pension Plans"), maintained by Company to which the
Company contributed or is obligated to contribute thereunder.

          (b)  Purchasers will not have (i) any obligation to make any
contribution to any Multiemployer Plan (as defined under ERISA) or (ii) any
withdrawal liability from any such Multiemployer Plan under Section 4201 of
ERISA which it would not have had if it had not purchased the Shares from the
Company at the Closing in accordance with the terms of this Agreement.

          (c)  The Pension Plans intended to be qualified under Section 401 of
the Internal Revenue Code of 1986, as amended (the "IRC") are so qualified and
the trusts maintained pursuant thereto are exempt from federal income taxation
under Section 501 of the IRC, and nothing has occurred with respect to the
operation of the Pension Plans which could cause the loss of such qualification
or exemption or the imposition of any liability, penalty, or tax under ERISA or
the IRC.

          (d)  All contributions required by law or pursuant to the terms of
the Plans (without regard to any waivers granted under Section 412 of the IRC)
to any funds or trusts established thereunder or in connection therewith have
been made by the due date thereof (including any valid extension) and no
accumulated funding deficiencies exist in any of the Pension Plans.

          (e)  There is no "amount of unfunded benefit liabilities" as defined
in Section 4001(a)(18) of ERISA in any of the respective Pension Plans.

          (f)  There has been no "reportable event" as that term is defined in
Section 4043 of ERISA and the regulations thereunder with respect to the Pension
Plans which would require the giving of notice, or any event requiring
disclosure under Sections 4041(c)(3)(C), 4063(a) or 4068(f) of ERISA.

          (g)  There is no material violation of ERISA with respect to the
filing of applicable reports, documents, and notices regarding the Plans with
the Secretary of Labor and the Secretary of the Treasury or the furnishing of
such documents to the participants or beneficiaries of the Plans.

          (h)  True, correct and complete copies of the following documents,
with respect to each of the Plans, have been made available or delivered to the
Purchasers by the Company: (A) any plans and related trust documents, and
amendments thereto, (B) the most recent Forms 5500 (including any schedules
thereto) and the most recent actuarial valuation report, if any, (C) the last
Internal Revenue Service determination letter, (D) summary plan descriptions,
(E) written communications to employees relating to the Plans and (F) written
descriptions of all non-written agreements relating to the Plans.

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          (i)   There are no pending actions, claims or lawsuits which have been
asserted or instituted against the Plans, the assets of any of the trusts under
such Plans or the Plan sponsor or the Plan administrator, or against any
fiduciary of the Plans with respect to the operation of such Plans (other than
routine benefit claims), nor does the  Company  have knowledge of facts which
could form the basis for any such claim or lawsuit.

          (j)   All amendments and actions required to bring the Plans into
conformity in all material respects with all of the applicable provisions of
ERISA and other applicable laws have been made or taken except to the extent
that such amendments or actions are not required by law to be made or taken
until a date after the Closing Date.

          (k)   The Plans have been maintained, in all material respects, in
accordance with their terms and with all provisions of ERISA (including rules
and regulations thereunder) and other applicable Federal and state law, and
neither the Company nor a  "party in interest" or a  "disqualified person" with
respect to the Plans has engaged in a "prohibited transaction" within the
meaning of Section 4975 of the IRC or Section 406 of ERISA.

          (l)   Neither the Company nor any Person that, together with the
Company, would be or was at any time treated as a single employer under Section
414 of the Code or Section 4001 of ERISA or any general partnership of which the
Company is or has been a general partner (an "ERISA Affiliate") has terminated
any Pension Plan, or incurred any outstanding liability under Section 4062 of
ERISA to the PBGC, or to a trustee appointed under Section 4042 of ERISA.

          (m)   Neither the Company nor any ERISA Affiliate maintains retired
life and retired health insurance plans which provide for continuing benefits or
coverage for any participant or any beneficiary of a participant except as may
be required under the Consolidated Omnibus Budget Reconciliation Act of 1985, as
amended ("COBRA") and at the expense of the participant or the participant's
beneficiary.

          (n)   Neither the  Company nor any ERISA Affiliate has contributed or
been obligated to contribute to a Multiemployer Plan through the Closing.

          (o)   Neither the Company nor any ERISA Affiliate has withdrawn in a
complete or partial withdrawal from any Multiemployer Plan prior to the Closing
Date, nor has any of them incurred any liability due to the termination or
reorganization of a Multiemployer Plan.

          (p)   Neither the Company nor any ERISA Affiliate or any organization
to which Company is a successor or parent corporation, within the meaning of
Section 4069(b) of ERISA, has engaged in any transaction, within the meaning of
Section 4069 of ERISA.

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3.21  Full Disclosure.  No information contained in this Agreement, any other
Transaction Document, the Financial Statements or any written statement
furnished by or on behalf of Company pursuant to the terms of this Agreement
contains any untrue statement of a material fact or omits to state a material
fact necessary to make the statements contained herein or therein not misleading
in light of the circumstances under which made.

3.22  Securities Laws.  In reliance on the investment representations contained
in Section 4, the offer, issuance, sale and delivery of the Shares, as provided
in this Agreement, are exempt from the registration requirements of the
Securities Act of 1933, as amended (the "Securities Act"), and all applicable
state securities laws, and are otherwise in compliance with such laws. Except as
set forth in Schedule 3.23 of the Disclosure Schedule, neither the Company nor
any person acting on its behalf has taken or will take any action (including,
without limitation, any offering of any securities of Company under
circumstances which would require the integration of such offering with the
offering of the Shares under the Securities Act and the rules and regulations of
the Securities and Exchange Commission ("SEC") thereunder) which might subject
the offering, issuance or sale of the Shares to the registration requirements of
Section 5 of the Securities Act.

3.23  Inventions Assignment and Confidentiality Agreement.  Each employee and
contractor of the Company has entered into and executed a Proprietary
Information and Inventions Agreement in the form attached to this Agreement as
Exhibit C or an employment or consulting agreement containing substantially
similar terms.

3.24  Interested Party Transactions.  Except as set forth in Schedule 3.25 of
the Disclosure Schedule, to the knowledge of the Company, no officer or director
of the Company or any "affiliate" or "associate" (as those terms are defined in
Rule 405 promulgated under the Securities Act) of any such person has had,
either directly or indirectly, a material interest in: (i) any person or entity
which purchases from or sells, licenses or furnishes to the Company any goods,
property, technology, intellectual or other property rights or services; or (ii)
any contract or agreement to which the Company is a party or by which it may be
bound or affected.

3.25  Environmental Matters.  The Company knows of no violation or violations
by the Company, its employees or agents of any environmental or safety statute,
law or regulation that in the aggregate would have a Material Adverse Effect, no
material expenditures are or will be required in order to comply with any such
existing statute, law or regulation. No action, proceeding, permit revocation,
writ, injunction or claim is pending or, to the Company's knowledge threatened
concerning the Company's facilities and the Company is not aware of any fact or
circumstance which could involve the Company in any environmental litigation or
impose any material environmental liability upon the Company. As of the Closing,
no Hazardous Material (as defined below) is present on any Company facility and,
to the Company's knowledge, no reasonable likelihood exists that any Hazardous
Material present on other property will

                                      10
<PAGE>

come to be present on a Company facility. To the Company's knowledge, there are
no underground storage tanks, asbestos or PCBs present on a Company facility.
For the purposes of this Section 3.26, the term "Hazardous Material" shall mean
any material or substance that is prohibited or regulated by any environmental
law or that has been designated by any governmental authority to be radioactive,
toxic, hazardous or otherwise a danger to health, reproduction or the
environment.

3.26 Company Status.  The Company is not (i) a "public utility holding company"
or a "holding company" as defined in the Public Utility Holding Company Act of
1935, as amended, or (ii) an "investment company" as defined in the Investment
Company Act of 1940, as amended.

4.   Representations And Warranties Of The Purchasers

     Each Purchaser, severally and not jointly, hereby represents and warrants
to the Company as follows:

4.1  Requisite Power and Authority.  Such Purchaser has all necessary power and
authority under all applicable provisions of law to execute and deliver this
Agreement and the Stockholders' Agreement and to carry out the provisions
hereunder and thereunder. All actions on such Purchaser's part required for the
lawful execution and delivery of this Agreement and the Stockholders' Agreement
have been or will be effectively taken prior to the Closing and each such
agreement constitutes a valid and binding obligation of such Purchaser,
enforceable in accordance with its terms, except (i) as limited by applicable
bankruptcy, reorganization, insolvency, moratorium and similar laws affecting
the rights of creditors generally (ii) as limited by laws relating to the
availability of specific performance, injunctive relief or other equitable
remedies and (iii) to the extent the indemnification provision contained in the
Stockholders Agreement may be limited by applicable federal or state securities
laws.

4.2  Investment Representations.  Such Purchaser understands that neither the
Shares nor the Conversion Shares have been registered under the Securities Act.
Such Purchaser also understands and hereby confirms that the Shares are being
offered and sold pursuant to an exemption from registration contained in the
Securities Act based in part upon the Purchaser's representations contained in
this Agreement.

          (a)  Purchaser Bears Economic Risk.  Such Purchaser has substantial
experience in evaluating and investing in private placement transactions of
securities in companies similar to the Company so that it is capable of
evaluating the merits and risks of its investment in the Company and has the
capacity to protect its own interests. Such Purchaser must bear the economic
risk of this investment indefinitely unless the Shares (or the Conversion
Shares) are registered pursuant to the Securities Act, or an exemption from
registration is available. Such Purchaser understands that there is no assurance
that

                                      11
<PAGE>

any exemption from registration under the Securities Act will be available and
that, even if available, such exemption may not allow such Purchaser to transfer
all or any portion of the Shares or the Conversion Shares under the
circumstances, in the amounts or at the times such Purchaser might propose.

          (b)  Acquisition for Own Account.  Such Purchaser is acquiring the
Shares and the Conversion Shares for its own account for investment only, and
not with a view towards their public resale or distribution within the meaning
of the Securities Act; provided that the disposition thereof shall be and remain
in the control of such Purchaser. By executing this Agreement, each Purchaser
further represents that such Purchaser does not have any contract, undertaking,
agreement or arrangement with any person to sell, transfer or grant
participation to such person or to any third person, with respect to any of the
Shares.

          (c)  Purchaser Can Protect Its Interest.  Such Purchaser represents
that, by reason of its or of its management's business or financial experience,
such Purchaser has the capacity to protect its own interests in connection with
the transactions contemplated in this Agreement. Further, such Purchaser is
aware of no publication of any advertisement in connection with the transactions
contemplated by the Agreement.

          (d)  Accredited Investor.  Such Purchaser represents that it is an
accredited investor within the meaning of Regulation D under the Securities Act.

          (e)  Company Information.  Such Purchaser has had an opportunity to
discuss the Company's business, management and financial affairs with directors,
officers and management of the Company. Such Purchaser has also had the
opportunity to ask questions of, and receive answers from, the Company and its
management regarding the terms and conditions of this investment.

          (f)  Rule 144.  Such Purchaser acknowledges and agrees that the
Shares and the Conversion Shares must be held indefinitely unless they are
subsequently registered under the Securities Act or an exemption from such
registration is available. Such Purchaser has been advised or is aware of the
provisions of Rule 144 promulgated under the Securities Act, which permits
limited resales of shares purchased in a private placement subject to the
satisfaction of certain conditions, including, among other things: the
availability of certain current public information about the Company, the resale
occurring not less than one year after a party has purchased and paid for the
security to be sold, the sale being through an unsolicited "broker's
transaction" or in transactions directly with a market maker (as said term is
defined under the Securities Exchange Act of 1934, as amended) and the number of
shares being sold during any three-month period not exceeding specified
limitations.

          (g)  Further Limitations on Disposition.  Without in any way limiting
the representations set forth above, each Purchaser further agrees not to make
any

                                      12
<PAGE>

disposition of all or any portion of the Shares (or the Conversion Shares
issuable upon the conversion thereof) unless and until there is then in effect a
Registration Statement under the Securities Act covering such proposed
disposition and such disposition is made in accordance with such Registration
Statement, or such Purchaser shall have established to the reasonable
satisfaction of the Company that an exemption from registration is available.

          (h)  Legends.  It is understood that the certificates evidencing the
Shares (and the Conversion Shares) may bear one or all of the following legends:

               (i)    "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR
HYPOTHECATED IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH RESPECT
TO THE SECURITIES UNDER SUCH ACT AND APPLICABLE STATE SECURITIES LAWS OR AN
EXEMPTION FROM REGISTRATION BEING AVAILABLE UNDER SUCH ACT AND APPLICABLE STATE
SECURITIES LAWS."

               (ii)   Any legend required by any applicable state securities
laws.

               (iii)  Any legend required by the Stockholders Agreement.

5.  Conditions Precedent To Purchasers' Obligations

     The obligation of each Purchaser to purchase and pay for the Shares to be
delivered to it at the Closing shall be subject to the satisfaction of the
following conditions as of the  Closing (except as otherwise noted):

          (a) Representations and Warranties.  The representations and
          warranties of the Company contained in this Agreement shall be true
          and correct in all respects;

          (b) Performance.  The Company shall have performed and complied with
          all agreements, obligations and conditions contained in this Agreement
          that are required to be performed or complied with by it on or before
          the Closing, and shall have obtained all approvals, consents and
          qualifications necessary to complete the purchase and sale described
          herein.

          (c) Certificate Effective. The Certificate shall have been duly
          adopted by the Company by all necessary corporate action of its Board
          of Directors and stockholders, and shall have been duly filed with and
          accepted by the Secretary of State of Delaware.

          (d) Compliance Certificate. The Company shall have delivered to a
          representative of all of the Purchasers at Closing a certificate
          signed on its

                                      13
<PAGE>

behalf by its President and Chief Executive Officer or Chief Financial Officer
certifying that the conditions specified in Sections 5(a) - (c) have been
fulfilled and stating that there shall have been no Material Adverse Change not
previously disclosed to the Purchasers in writing.

    (e) Securities Exemptions. The offer and sale of the Shares to the
Purchasers pursuant to this Agreement shall be exempt from the registration
requirements of the Securities Act and the registration and/or qualification
requirements of all other applicable state securities laws.

    (f) Proceedings and Documents. All corporate and other proceedings in
connection with the transactions contemplated at the Closing and all documents
incident thereto shall be reasonably satisfactory in form and substance to a
majority of the Purchasers and to special counsel to the Purchasers. Such
documents shall include (but not be limited to):

          (i)    Certified Charter Documents.  A copy of the Certificate (as
amended through the date of the Closing), certified by the Secretary of the
Company as a true and correct copy thereof as of Closing.

          (ii)   Corporate Actions.  A copy of the resolutions of the Board of
Directors, and, if required, the stockholders of the Company evidencing the
amendment to the Certificate providing for the authorization of the Shares, the
approval of the Stockholders' Agreement and the consummation of the transactions
contemplated hereby and thereby, including the issuance and sale of the Shares
and the other matters contemplated thereby.

          (iii)  Secretary's Incumbency Certificate.  A certificate of the
Secretary or Assistant Secretary or other officer of the Company certifying the
names of the officers of the Company authorized to sign this Agreement, the
certificates for the Shares purchased under this Agreement and the other
documents, instruments or certificates to be delivered pursuant to this
Agreement by the Company or any of its officers, together with the true
signatures of such officers.

          (iv)   Good Standing Certificates.  Certificate of good standing
issued by the Delaware Secretary of State dated within ten (10) days of the
Closing.

    (g) Bylaws. The Bylaws of the Company shall be in the form previously
provided to special counsel for the Purchasers.

    (i) Stockholders' Agreement. Concurrent with the Closing, the Company, the
Purchasers participating in such closing and the parties to the Stockholders'

                                      14
<PAGE>

Agreement dated November 17, 1999 between the Company and certain stockholders
of the Company shall have entered into the Stockholders Agreement;

     (j) Legal Opinion.  The Purchasers shall have received the legal opinion of
     Cooley Godward LLP, counsel to the Company, in the form of Exhibit D hereto
     as of the date of the Closing and each Additional Closing;

     (k) Microsoft Warrant. Solely with respect to the obligations of Microsoft
     Corporation to purchase Shares hereunder, Microsoft Corporation shall have
     received from the Company a warrant to purchase 858,416 shares of the
     Company's Series E Convertible Preferred Stock in the form attached hereto
     as Exhibit E.

     (l) Commercial Agreement.  Solely with respect to the obligations of
     Microsoft Corporation to purchase Shares hereunder, the Company and
     Microsoft Corporation shall have entered into that certain Commercial
     Agreement (the "Commercial Agreement"), a form of which is attached hereto
     as Exhibit F.

     (m) Existing First Refusal Rights.  Any preemptive rights, rights of first
     refusal or other similar rights as they apply to the issuance and sale of
     the Shares totaling  greater than 50,000 shares, individually or in the
     aggregate, shall have been waived and released in writing or shall have
     been satisfied in full.

     (n) No Material Change.  There shall not have been a Material Adverse
     Change since the date of the Latest Balance Sheet .

6.   Miscellaneous

6.1  Definitions.  For purposes of this Agreement, the following terms have the
meanings set forth below:

     "Person" means an individual, a partnership, a corporation, an association,
a joint stock company, a trust, a joint venture, an unincorporated organization
and a governmental entity or any department, agency or political subdivision
thereof.

     "Proprietary Rights" means all (i) patents, patent applications, patent
disclosures and inventions, (ii) trademarks, service marks, trade dress, trade
names and corporate names and registrations and applications for registration
thereof, (iii) copyrights and registrations and applications for registration
thereof, (iv) mask works and registrations and applications for registration
thereof, (v) computer software, data and documentation, (vi) trade secrets and
other confidential information (including, without limitation, ideas, formulas,
compositions, inventions (whether patentable or unpatentable and whether or not
reduced to practice), know-how, manufacturing and

                                      15
<PAGE>

information, drawings, specifications, designs, plans, proposals, and customer
and supplier lists and information), (vii) other intellectual property rights,
and (viii) copies and tangible embodiments thereof (in whatever form or medium).

6.2  Governing Law.  This Agreement shall be governed in all respects by the
laws of the State of Colorado as such laws are applied to agreements between
Colorado residents entered into and performed entirely in Colorado, except that
the General Corporation Law of the State of Delaware shall govern as to matters
of corporate law.  The parties hereto waive all right to trial by jury in any
action or proceeding to enforce or defend any rights under this Agreement.

6.3  Survival.  The representations, warranties, covenants and agreements made
herein shall survive any investigation made by any Purchaser and the closing of
the transactions contemplated hereby.  All statements as to factual matters
contained in any certificate or other instrument delivered by or on behalf of
the Company hereunder in connection with the transactions contemplated hereby
shall be deemed to be representations and warranties by the Company hereunder
solely as of the date of such certificate or instrument.

6.4  Successors and Assigns.  Except as otherwise expressly provided herein,
the provisions hereof shall inure to the benefit of, and be binding upon, the
successors, assigns, heirs, executors and administrators of the parties hereto
and shall inure to the benefit of and be enforceable by each person who shall be
a holder of the Shares from time to time.

6.5  Entire Agreement.  This Agreement, the Exhibits and the other documents
expressly delivered hereunder, including the Stockholders' Agreement, supersede
any other agreement, whether written or oral, that may have been made or entered
into by the parties hereto relating to the matters contemplated hereby and
constitute the full and entire understanding and agreement between the parties
with regard to the subjects hereof, and no party shall be liable or bound to any
other in any manner by any representations, warranties, covenants and agreements
except as specifically set forth herein and therein.

6.6  Specific Enforcement.  Any Purchaser shall be entitled to specific
enforcement of its rights under this Agreement.  The Company acknowledges that
money damages would be an inadequate remedy for its breach of this Agreement and
consents to an action for specific performance or other injunctive relief in the
event of any such breach.

6.7  Separability.  In case any provision of the Agreement shall be invalid,
illegal or unenforceable, the validity, legality and enforceability of the
remaining provisions shall not in any way be affected or impaired thereby and
such provision shall be enforced to the greatest extent permitted by law.

                                      16
<PAGE>

6.8  Amendment and Waiver.  This Agreement may be amended or modified only upon
the mutual written consent of the Company and the holders of at least 66 2/3% of
the Shares (voting on an as-converted basis).

6.9  Notices.  All notices required or permitted hereunder shall be in writing
and shall be deemed effectively given: (i) upon personal delivery to the party
to be notified; (ii) when sent by confirmed telex or facsimile if sent during
normal business hours of the recipient, if not, then on the next business day;
(iii) five (5) days after having been sent by registered or certified mail,
return receipt requested, postage prepaid; or (iv) one (1) day after deposit
with a nationally recognized overnight courier, special next day delivery, with
verification of receipt.  All communications shall be sent to the Company at
1157 Century Drive, Louisville, CO 80027 and to a Purchaser at the address set
forth on Exhibit B attached hereto or at such other address as the Company or
Purchaser may designate by ten (10) days advance written notice to the other
parties hereto.

6.10 Counterparts. This Agreement may be executed in any number of counterparts,
each of which shall be an original, but all of which together shall constitute
one instrument.

6.11 Broker's Fees'. Each party hereto represents and warrants that no agent,
broker, investment banker, person or firm acting on behalf of or under the
authority of such party hereto is or will be entitled to any broker's or
finder's fee or any other commission directly or indirectly in connection with
the transactions contemplated herein. Each party hereto further agrees to
indemnify each other party for any claims, losses or expenses incurred by such
other party as a result of the representation in this Section 6.11 being untrue.

6.12 Future Financings. Nothing contained in this Agreement or any Purchaser' s
prior dealings with the Company shall be deemed to constitute a commitment on
the part of any Purchaser to participate in any future financings by the
Company.

6.13 Confidentiality and Non-Disclosure. The parties hereto agree to be bound by
the confidentiality and non-disclosure provisions of Section 7.11 of the
Stockholders' Agreement.

                 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]

                                      17

<PAGE>

     In Witness Whereof, the parties hereto have executed the Agreement as of
the date set forth in the first paragraph hereof.

                                 COMPANY:

                                 Evoke Incorporated

                                 By:    /s/ Paul A. Berberian
                                    _________________________________________

                                 Title: President and Chief Executive Officer
                                       ______________________________________

                                 PURCHASERS

                                 Microsoft Corporation

                                 By:  Microsoft Corporation

                                 By:    /s/ Brad Brunell
                                    ______________________________________

                                 [Signature Page to Purchase Agreement]

                                      18
<PAGE>

                                   EXHIBIT A

                         FORM OF AMENDED AND RESTATED
                         CERTIFICATE OF INCORPORATION

                                      19
<PAGE>

                                   EXHIBIT B
                             SCHEDULE OF PURCHASERS

                                          Number of Shares     Aggregate
                                                                Purchase
                                                                 Price
Name and Address

Microsoft Corporation                         686,813        $4,999,998.64

TOTAL                                                        $4,999,998.64

                                      20
<PAGE>

                                   EXHIBIT C
                  FORM OF PROPRIETARY AND INVENTIONS AGREEMENT

                                      21
<PAGE>

                                   EXHIBIT D

                             FORM OF LEGAL OPINION

                                      22
<PAGE>

                                   EXHIBIT E

                                FORM OF WARRANT

                                      23

<PAGE>

                                   EXHIBIT F

                              COMMERCIAL AGREEMENT

                                      24
<PAGE>

                                   EXHIBIT D

                             FORM OF LEGAL OPINION

                                      22
<PAGE>

                                   EXHIBIT E

                                FORM OF WARRANT

                                      23

<PAGE>

                                   EXHIBIT F

                              COMMERCIAL AGREEMENT

                                      24<PAGE>
                                                                   Exhibit 10.20

                          PERSONAL SERVICES AGREEMENT

     This PERSONAL SERVICES AGREEMENT is made as of and effective on March 28,
2000, (the "Effective Date") by and between Evoke Incorporated, a Delaware
corporation (the "Company") having its principal place of business at 1157
Century Drive, Louisville, Colorado 80027, and Terence G. Kawaja ("Executive").

     WHEREAS, the Company desires to employ Executive pursuant to the terms and
conditions and for the consideration set forth in this Agreement and Executive
desires to enter the employ of the Company pursuant to such terms and conditions
and for such consideration;

     WHEREAS, the provisions of this Agreement are a condition of Executive
being employed by Company, of Executive's having access to confidential business
and technological information, and of Executive's being eligible to receive
certain benefits of the Company.  This Agreement is entered into, and is
reasonably necessary, to protect confidential information and customer
relationships to which Executive may have access, and to protect the goodwill
and other business interests of the Company; and

     WHEREAS, the provisions of this Agreement are also a condition to
Executive's agreement to provide personal services to Company.

     NOW THEREFORE, in consideration of the mutual promises and covenants agreed
to herein, the receipt and sufficiency of which are hereby acknowledged, Company
and Executive agree as follows:

     1.   Position, Term, Duties, Responsibilities
          ----------------------------------------

          (a)  Position. Executive shall be employed by the Company in the
capacity of Chief Financial Officer - Executive Vice President, to act in
accordance with the terms and conditions hereinafter set forth.

          (b)  Duties. The Executive shall, during the term of his employment
hereunder, devote his full normal working time, energies and attention to the
duties of his employment, as they may be established from time to time by the
Board of Directors of the Company (the "Board") consistent with the position and
office occupied by Executive. Executive shall comply with the provisions of this
Agreement and all reasonable rules, regulations and administrative directions
now or hereafter established by the Company.

          (c)  Term. This Agreement shall be for a term beginning on the
Effective Date and terminating the earlier of (i) two years from the Effective
Date (the "Expiration Date"), or (ii) the date on which Executive's employment
is terminated pursuant to Section 3 of this Agreement (the "Term"); provided
that the Term shall be automatically extended indefinitely thereafter until
either party shall have given notice to the contrary (the "Term Termination
<PAGE>

Notice"), in which event the Term shall expire on the six month anniversary of
such Term Termination Notice. Notwithstanding the Term set forth in this
paragraph, the termination of this Agreement shall not affect Executive's rights
pursuant to the option agreement described in Section 2(c), including but not
limited to the right to accelerated vesting under the circumstances set forth
herein and therein.

          (d)  Other Activities. During Executive's employment with the Company,
Executive shall devote his entire business time, attention and energies to the
performance of his duties and functions under this Agreement; provided, however
that nothing in this Agreement shall prevent Executive from: (i) serving as a
director of any entity that is not a Competitive Business (as defined in Section
5); (ii) managing his personal investments and affairs and the personal
investments and affairs of any of his family members; (iii) acquiring any
interest in any entity, whether or not part of a control group, that is directly
or indirectly owned or controlled, in whole or in part, by Executive and/or one
or more members of his family, or a partnership, trust or other entity held by
or for the benefit of Executive and/or one or more members of his family and/or
(iv) performing any services for any entity, whether or not part of a control
group, that is directly or indirectly owned or controlled, in whole or in part,
by Executive and/or one or more members of his family, or a partnership, trust
or other entity held by or for the benefit of Executive and/or one or more
members of his family; provided, however, that any service shall be
insubstantial and shall not include any active involvement in the management of
such entity and provided further that such entities do not constitute a
Competitive Business (as defined in Section 5).

     2.   Compensation, Bonuses and Benefits
          ----------------------------------

          (a)  Base Salary. During Executive's employment with the Company, the
Company shall pay Executive a base annual salary, (the "Base Salary") which at
the time of the execution of this Agreement is Two Hundred and Fifteen Thousand
Dollars ($215,000). The Base Salary shall be payable in accordance with the
Company's normal payroll schedule, less all applicable tax withholdings for
state and federal income taxes, FICA and other deductions as required by law
and/or authorized by the Executive. The Executive's Base Salary shall be
reviewed no less frequently than annually to determine whether or not the same
should be increased in light of the duties and responsibilities of the Executive
and the performance thereof, as determined by review of comparably situated
companies and, if it is determined that an increase is merited, such increase
shall be promptly put into effect and the Base Salary of the Executive as so
increased shall constitute the Base Salary of the Executive for purposes of this
Agreement.

          (b)  Incentive Compensation Program. During Executive's employment
with the Company, Executive shall be eligible for a discretionary performance-
based bonus based upon the actual performance of the Company in relation to
target milestones agreed upon by the Compensation Committee of the Board, or the
Board. The Compensation Committee or the Board will set such milestones on or
before December 31st of each year of the Term. Notwithstanding anything in this
Agreement to the contrary, (i) Executive's target annual bonus for the 2000
calendar year shall be an amount up to 100% of Executive's Base Salary, and (ii)
Executive shall receive a guaranteed minimum bonus for the 2000 calendar year in
an amount equal to 50% of Executive's Base Salary (the "Guaranteed Bonus"). Any
bonus payable as a

                                       2
<PAGE>

performance bonus shall be in the amount, and paid at the time and in
the manner, as determined by the Compensation Committee or the Board.

          (c)  Initial Stock Options. At the Effective Date, the Company shall
grant Executive options to purchase 1,200,000 shares of the Company's $.001 par
value common stock (the "Initial Stock Options") pursuant to the Company's 2000
Equity Incentive Plan (the "2000 Plan") with the purchase price, expiration
date, type of option, vesting and other terms all as described on Exhibit A
attached hereto. Notwithstanding anything to the contrary in this Agreement (or
the Exhibits attached hereto), the Initial Stock Options shall become fully
vested and immediately exercisable (and any shares purchasable or purchased
under the Initial Stock Options shall no longer be subject to any repurchase
rights by the Company) upon (i) the occurrence of a Change in Control (as
defined in Section 3(g)), (ii) termination of Executive's employment (A) by the
company other than for Cause (as defined in Section 3), including upon the
Company's delivery of the Term Termination Notice to Executive, or (B) by the
Executive for Good Reason (as defined in Section 3). Subsequent grants may be
awarded subject to the approval of the Board based on your performance and
contributions to the business.

          (d)  Initial Stock Purchase. On or within five days following the
Effective Date, the Executive shall be permitted but not obligated to purchase
375,000 shares of the Company's $0.001 par value common stock (the "Initial
Shares") at a purchase price of $ 3.00 per share. Executive acknowledges that
such shares shall be issued pursuant to an exemption from registration under the
Securities Act of 1933, as amended, and shall be deemed "restricted securities"
thereunder, but shall otherwise be freely transferable and not subject to any
repurchase right by the Company. The Company and Executive acknowledge that the
Board has determined that the fair market value as of the Effective Date of one
share of the Company's $0.001 par value common stock is $7.20. The Company shall
provide Executive with an interest-free loan (the "Loan") in an amount equal to
the amount of income taxes payable as a result of Executive's purchase of the
Initial Shares. The Executive shall be obligated to repay the Loan to the
Company upon the earlier of: (i) four years from the date of the loan, (ii)
termination of Executive's employment; provided, however, that, to the extent
then outstanding, the Loan shall be forgiven in the event that Executive's
employment is terminated (i) by the Company other than for Cause, including upon
the Company's delivery of the Term Termination Notice to Executive or (ii) by
the Executive for Good Reason. The Company shall not be obligated to reimburse
employee for any taxes associated with the forgiveness of such loan.

          (e)  Benefits. Executive shall also be entitled to participate in such
employee benefit plans which the Company provides or may establish from time to
time for the benefit of employees, subject to the terms of each such plan and
subject to the right of the Company and the Board to modify, revise or eliminate
such benefit plans from time to time in their sole discretion. Executive shall
pay for the portion of the cost of such benefits as is from time-to-time
established by Company as the portion of such cost to be paid by senior
executives of Company.

          (f)  Costs and Expenses. Executive shall be entitled to reimbursement
for all ordinary reasonable out-of-pocket business expenses which are reasonably
incurred by him in the furtherance of the Company's business, in accordance with
the policies adopted from time to time by the Company or the Board. Executive
will comply with the Company's travel policies as

                                       3
<PAGE>

established from time to time by the Company or the Board; provided, that
Executive shall be entitled to reimbursement for first-class airfare travel
expenses incurred in connection with the performance of Executive's duties and
responsibilities hereunder; provided, further, that Executive shall not incur
such business travel expenses for first-class airfare until such time as
Executive has reasonably utilized to the greatest extent possible Executive's
personal frequent-flyer points and/or mileage for the purposes of upgrading to
first-class (subject to availability and other restrictions imposed by the
airline carriers).

          (g)  Vacation. During the Term, Executive shall be entitled to four
weeks of paid vacation per year so long as the absence of Executive does not
interfere in any material respect with the performance by Executive of
Executive's duties hereunder. Executive will use his best efforts to schedule
vacation periods to minimize disruption of the Company's business.

     3.   Termination.
          -----------

          (a)  Mutual Agreement. This Agreement may be terminated at any time by
the mutual agreement of the Company and Executive, expressed in writing.

          (b)  Voluntary. Executive may terminate this Agreement with or without
the consent of the Company by giving written notice of his intent to terminate
with the effective date of termination at least one hundred (100) days after the
effective date of the notice of termination. After such notice the Company may
accelerate the date of termination without being in breach hereof.

          (c)  Without Cause. The Company may terminate this Agreement at any
time without Cause upon twenty (20) days prior notice.

          (d)  Disability or Death. The Company may terminate this Agreement
upon the death or disability of Executive. For purposes of this Agreement,
Executive shall be considered disabled if he is unable to perform his duties
under this Agreement as a result of injury, illness or other disability for a
period of one hundred eighty (180) consecutive days, or one hundred eighty (180)
days in a three hundred sixty-five (365) day period, and the Board reasonably
determines that Executive has been unable to perform his duties for the one
hundred eighty (180) day period as a result of injury, illness or other
disability.

          (e)  For Cause by the Company. The Company may terminate this
Agreement for "Cause", as defined below, immediately upon written notice to
Executive. For purposes of this Agreement, "Cause" shall mean:

               (i)  If Executive materially violates any term of this Agreement
and such action or failure is not substantially remedied or reasonable steps to
effect such substantial remedy are not commenced within twenty (20) days of
written notice from the Company to Executive.

               (ii) Dishonesty which is not the result of an inadvertent or
innocent mistake of Executive with respect to the Company or any of its
subsidiaries;

                                       4
<PAGE>

               (iii) Willful misfeasance or nonfeasance of duty by Executive
intended to injure or having the effect of injuring in some material fashion the
reputation, business or business relationships of the Company or any of its
subsidiaries or any of their respective officers, directors or employees;

               (iv)  Conviction of Executive upon a charge of any crime
involving moral turpitude or a crime other than a vehicle offense which could
reflect in some material fashion unfavorably upon the Company or any of its
subsidiaries; or

               (v)   Willful or prolonged absence from work by the Executive
(other than by reason of disability due to physical or mental illness) or
failure, neglect or refusal by the Executive to perform his duties and
responsibilities without the same being corrected upon twenty (20) days prior
written notice.

          (f)  For Good Reason by the Executive. If (i) there is a material
reduction or change of Executive's reporting relationship, job duties,
responsibilities or requirements that is inconsistent with the position or
positions listed in Section 1(a) and the Executive's prior reporting
relationship, duties, responsibilities or requirements; (ii) there is a
reduction in Executive's Base Salary, other than a reduction comparable to
reductions generally applicable to similarly situated employees of the Company;
(iii) the Company requires Executive to relocate to a facility or location more
than 50 miles from the Company's current location; or (iv) the Company
materially breaches this Agreement, Executive may at his option terminate his
employment and such termination shall be considered to be a termination of
Executive's employment by the Company for reasons other than Cause. Such
termination is a termination by Executive for Good Reason.

          (g)  Termination of Executive Upon Change of Control. In the event
Executive's employment is terminated prior to the Expiration Date on or
following the occurrence of a Change of Control of the Company, as defined
below, Company shall: (i) pay to Executive, in a lump sum within ten (10) days
after the date Executive's employment is terminated, the amount of Executive's
then current Base Salary pursuant to Section 2(a) above through the termination
date of this Agreement or for a period of eighteen (18) months, whichever is
longer, beginning in the month next following such termination; and (ii) pay to
Executive the portion of the incentive compensation for the year of such
termination which is (A) determined by objective measurement standards under
Section 2(b), and (B) would have been paid to Executive had Executive been
continuously employed under this Agreement through the Expiration Date. Payment
of such portions of incentive compensation, if any, shall be made to Executive
within 10 business days after the date, if any, on which senior executives of
Company receive payment of their incentive compensation under such incentive
compensation program. If a Change of Control (as defined below) results in a
successor firm, Executive shall receive, in lieu of the shares underlying the
Initial Stock Option, the cash, stock and other securities or property in the
successor firm to which he would have been entitled if he had exercised the
Initial Stock Options immediately prior to the Change of Control or, at the
Company's election, the Initial Stock Options shall be converted into an
equivalent number of like securities, fully vested as aforesaid, preserving the
post-tax economics of the Initial Stock Options, including the substantive terms
thereof. The term of the Initial Stock Options shall be ten years from the date
of grant. The Initial Stock Options shall not be transferable except by will

                                       5
<PAGE>

or by reason of the laws of descent and distribution. Thereafter Executive shall
not be entitled to receive, and the Company shall not be obligated to provide
Executive with any additional salary, payments or benefits of any kind other
than those specifically set forth in this Section 3(g) and all accrued
compensation and unreimbursed business expenses.

               As used herein, "Change of Control" means (i) a sale, lease or
other disposition of all or substantially all of the assets of the Company; (ii)
a merger or consolidation in which the Company is not the surviving corporation
and in which beneficial ownership of securities of the Company representing at
least fifty percent (50%) of the combined voting power entitled to vote in the
election of the members of the Board has changed; (iii) a reverse merger in
which the Company is the surviving corporation but the shares of the Company's
Common Stock outstanding immediately preceding the merger are converted by
virtue of the merger into other property, whether in the form of securities,
cash or otherwise, and in which beneficial ownership of securities of the
Company representing at least fifty percent (50%) of the combined voting power
entitled to vote in the election of the member of the Board has changed; (iv) an
acquisition by any entity (other than (A) a controlled affiliate of the Company,
(B) any employee benefit plan, or related trust, sponsored or maintained by the
Company or subsidiary of the Company or other entity controlled by the Company,
or (C) any company owned directly or indirectly by stockholders of the Company
in substantially the same proportions as their ownership of Common Stock
interest of the Company, immediately prior to the occurrence with respect to
which the evaluation of the Change in Control is being made) of the beneficial
ownership, directly or indirectly, of securities of the Company representing at
least fifty percent (50%) of the combined voting power of the Company's then
outstanding securities; or (v) any event which causes the individuals who, as of
the date of adoption of the Plan, are members of the Company's Board (the
"Incumbent Board") to cease for any reason to constitute at least fifty percent
(50%) of the Board. (If the election, or nomination for election by the
Company's stockholders of any new Director is approved by a vote of at least
fifty percent (50%) of the Incumbent Board, such new Director shall be
considered to be a member of the Incumbent Board in the future.)

          (h)  (i)  Anything in this Agreement to the contrary notwithstanding,
in the event it shall be determined that any payment, award, benefit or
distribution (or any acceleration of any payment, award, benefit or
distribution) by the Company (or any of its affiliated entities) or any entity
which effectuates a Change in Control (or any of its affiliated entities) to or
for the benefit of Executive (whether pursuant to the terms of this Agreement or
otherwise, but determined without regard to any additional payments required
under this Section 3(h)) (the "Payments") would be subject to the excise tax
imposed by Section 4999 of the Internal Revenue Code of 1986, as amended (the
"Code"), or any interest or penalties are incurred by Executive with respect to
such excise tax (such excise tax, together with any such interest and penalties,
are hereinafter collectively referred to as the "Excise Tax"), then the Company
shall pay to Executive an additional payment (a "Gross-Up Payment") in an amount
such that after payment by Executive of all taxes (including any Excise Tax)
imposed upon the Gross-Up Payment, Executive retains an amount of the Gross-Up
Payment equal to the sum of (x) the Excise Tax imposed upon the Payments and (y)
the product of any deductions disallowed because of the inclusion of the Gross-
Up Payment in Executive's adjusted gross income and the highest applicable
marginal rate of federal income taxation for the calendar year in which the
Gross-Up

                                       6
<PAGE>

Payment is to be made. For purposes of determining the amount of the Gross-Up
Payment, the Executive shall be deemed to (i) pay federal income taxes at the
highest marginal rates of federal income taxation for the calendar year in which
the Gross-Up Payment is to be made and (ii) pay applicable state and local
income taxes at the highest marginal rate of taxation for the calendar year in
which the Gross-Up Payment is to be made, net of the maximum reduction in
federal income taxes which could be obtained from deduction of such state and
local taxes.

               (ii) Subject to the provisions of Section 3(h)(i), all
determinations required to be made under this Section 3(h), including whether
and when a Gross-Up Payment is required, the amount of such Gross-Up Payment,
and the assumptions to be utilized in arriving at such determinations, shall be
made by the public accounting firm that is retained by the Company as of the
date immediately prior to the Change in Control (the "Accounting Firm") which
shall provide detailed supporting calculations both to the Company and Executive
within fifteen (15) business days of the receipt of notice from the Company or
the Executive that there has been a Payment, or such earlier time as is
requested by the Company (collectively, the "Determination"). In the event that
the Accounting Firm is serving as accountant or auditor for the individual,
entity or group effecting the Change in Control, Executive may appoint another
nationally recognized public accounting firm to make the determinations required
hereunder (which accounting firm shall then be referred to as the Accounting
Firm hereunder). All fees and expenses of the Accounting Firm shall be borne
solely by the Company and the Company shall enter into any agreement requested
by the Accounting Firm in connection with the performance of the services
hereunder. The Gross-up Payment under this Section 3(h) with respect to any
Payments shall be made no later than thirty (30) days following such Payment. If
the Accounting Firm determines that no Excise Tax is payable by Executive, it
shall furnish Executive with a written opinion to such effect, and to the effect
that failure to report the Excise Tax, if any, on Executive's applicable federal
income tax return will not result in the imposition of a negligence or similar
penalty. The Determination by the Accounting Firm shall be binding upon the
Company and Executive. As a result of the uncertainty in the application of
Section 4999 of the Code at the time of the Determination, it is possible that
Gross-Up Payments which will not have been made by the Company should have been
made ("Underpayment") or Gross-Up Payments are made by the Company which should
not have been made ("Overpayment"), consistent with the calculations required to
be made hereunder. In the event that the Executive thereafter is required to
make payment of any Excise Tax or additional Excise Tax, the Accounting Firm
shall determine the amount of the Underpayment that has occurred and any such
Underpayment (together with interest at the rate provided in Section
1274(b)(2)(B) of the Code) shall be promptly paid by the Company to or for the
benefit of Executive. In the event the amount of the Gross-Up Payment exceeds
the amount necessary to reimburse the Executive for his Excise Tax, the
Accounting Firm shall determine the amount of the Overpayment that has been made
and any such Overpayment (together with interest at the rate provided in Section
1274(b)(2) of the Code) shall be promptly paid by Executive (to the extent he
has received a refund if the applicable Excise Tax has been paid to the Internal
Revenue Service) to or for the benefit of the Company. Executive shall
cooperate, to the extent his expenses are reimbursed by the Company, with any
reasonable requests by the Company in connection with any contests or disputes
with the Internal Revenue Service in connection with the Excise Tax.

                                       7
<PAGE>

     4.   Payments at Termination.
          -----------------------

          (a)  Upon (i) termination of this Agreement by the Company under
Section 3(c) titled "Without Cause", including upon the Company's delivery of
the Term Termination Notice to Executive or (ii) termination of this Agreement
by Executive under Section 3(f) titled "For Good Reason by the Executive,"
Executive shall receive monthly payments equal to his Base Salary prior to
termination ("Applicable Base Salary") through the termination date of this
Agreement or for a period of eighteen (18) months, whichever is longer,
beginning in the month next following such termination. In either case Executive
shall receive all accrued compensation and unreimbursed expenses to the date of
termination as provided herein. The monthly payments provided for in this
Section 4(a) shall be paid in accordance with the Company's normal payroll
schedule, less applicable tax withholdings for state and federal taxes and other
deductions required by law and shall not be reduced by compensation the
Executive may receive from other sources. In either such case of termination,
all unexercised options granted pursuant to the 2000 Plan or any other Company
stock option plan (the "Plan"), including the Initial Stock Options, shall vest
and become exercisable on the day of termination (and any shares purchasable
thereunder shall no longer be subject to any repurchase rights by the Company,
if any). For any such non-statutory stock option or incentive stock option, the
period for exercise of the option shall continue for the shorter of the maximum
length of time the option is exercisable under the Plan as though the service of
Executive had not terminated, and three (3) years after the date of termination
of service, provided, however, that if the existence of this sentence would
cause any incentive stock option not to qualify as an incentive stock option
pursuant to Section 422 of the Internal Revenue Code of 1986, as amended,
("Section 422") at any time prior to ninety (90) days after termination of
employment as provided in Section 422, this sentence shall be null and void as
to such incentive stock option.

          (b)  If the Company terminates this Agreement due to disability, under
Section 3(d) titled "Disability or Death," Executive or his estate shall receive
the disability payments provided for by the Company's disability insurance
policy.

          (c)  If Executive terminates this Agreement without cause under
Section 3(b), titled "Voluntary", or if this Agreement is terminated under
Section 3(a), titled "Mutual Agreement," or if this Agreement is terminated by
the Company under Section 3(e) titled "For Cause by the Company," Executive
shall not be entitled to any further payments except unreimbursed expenses to
the date of termination as provided herein and any accrued compensation and as
provided in Section 4(d).

          (d)  In the event of termination of Executive's employment under
Section 4(a), (b) or (c), termination is the date of actual termination, not the
date notice of termination is given. Other than payments owing under a provision
providing for payments at a different time, all payments for accrued unpaid
monthly compensation shall be made within ten (10) days after the end of the
month following the month in which termination occurred and all payments for
reimbursement shall be made within forty-five (45) days after the end of the
month following the month in which termination occurred.

                                       8
<PAGE>

          (e)  Unless specified otherwise in any bonus plan or bonus agreement,
if termination occurs during a bonus period pursuant to Section 3(c) titled
"Without Cause" or Section 3(f) titled "For Good Reason by the Executive," or
Section 3(d) titled "Disability or Death," and based upon the results of the
full bonus period the bonus would have been earned, any bonus which would have
been earned shall be based upon the number of calendar days in such bonus period
which have elapsed at the date of termination. Unless specified otherwise in any
such bonus plan or bonus agreement, if Executive is terminated "For Cause by the
Company" (Section 3(e)), or Executive terminates voluntarily (Section 3(b) or
Executive after termination violates a confidentiality, covenant not to compete,
or "no hire" or "no raid" agreement with the Company, its parent (if any) or a
direct or indirect Company subsidiary or affiliate, then the Company shall have
no obligation to pay any earned or unearned bonus or the payments provided for
in the first sentence of Section 4(e) hereof.

          (f)  The foregoing rights in this Section 4 are Executive's exclusive
rights to payment from the Company in the event of termination of this Agreement
except for amounts which the Company is required to pay under applicable statute
or regulation, payments under insurance policies, and payments owing under other
written agreement(s) (if any) between the Company and Executive.

          (g)  Employment at Will After Termination of Agreement. If, upon the
termination of this Agreement pursuant to Section 3, the parties to this
Agreement agree that Executive shall remain employed by the Company, then
Executive's employment with the Company will continue in accordance with, and
subject to, the terms and conditions of this Agreement, except that Executive's
continued employment will not be for any specific term but will be at-will and
either the Company or Executive may terminate the employment relationship at any
time for any reason whatsoever. If the Company then terminates the employment of
Executive pursuant to Section 3(c) or Executive terminates the relationship for
Good Reason pursuant to Section 3(f), Executive shall be entitled to his salary
and bonus through the date of termination. If the Company terminates the
employment of Executive for Cause pursuant to Section 3(e) or Executive
voluntarily terminates his employment pursuant to Section 3(b), Executive shall
be entitled to his salary through the date of termination and no bonus payments.

     5.   Non-Competition.
          ---------------

          (a)  Executive covenants and agrees with the Company that so long as
he is employed by the Company and for a period of the longer of (i) twelve (12)
months after termination of Executive's employment for any reason or (ii) during
which any payments are made to Executive or for his benefit following
termination of employment pursuant to Section 4 of this Agreement, Executive
will not engage or participate, directly or indirectly, as principal, agent,
employee, employer, consultant, advisor, sole proprietor, stockholder, partner,
independent contractor, trustee, joint venturer or in any other individual or
representative capacity whatever, in the conduct or management of, or own any
stock or other proprietary interest in, or debt of, any business organization,
person, firm, partnership, association, corporation, enterprise or other entity
that shall be engaged in any business (whether in operation or in the planning,
research or development stage) that is a Competitive Business anywhere in the
Restricted Territory, unless Executive shall obtain the prior written consent of
the Board, given in its sole discretion, which consent shall make express
reference to this Agreement.

                                       9
<PAGE>

Notwithstanding the foregoing, Executive may (i) make passive investments in any
company whose stock is listed on a national securities exchange or traded in the
over-the-counter market so long as he does not come to own, directly or
indirectly, more than five percent (5%) of the equity securities of such company
(ii) join an investment banking firm and provide general investment banking and
advisory services to any business, whether or not such business is a Competitive
Business and (iii) become employed by a division of AT&T, MCI and Global
Crossing, or an equivalently large, diversified corporation, provided that
Executive is not assigned to a division or group which directs or conducts a
Competitive Business. For purposes of this Agreement, a business shall be
considered a "Competitive Business" if it involves or relates to (i) the
provision of (a) telephonic or internet based teleconferencing products or
services or (b) web collaboration products or services (except to the extent
that such products or services are not, in the reasonable opinion of a person
experience in the industry, competitive with the Company's products or services
at the time of Executive's termination) or (ii) the business currently conducted
by Centra Software, Contigo Software, PlaceWare or WebEx. The term "Restricted
Territory" shall mean each and every county, province, state, city or other
political subdivision of the United States.

          (b)  During the time of Executive's employment and for twelve (12)
months after termination of Executive's employment for any reason, without the
express, prior written consent of an executive officer of the Company, Executive
shall not engage in any of the following conduct:

               (i)  Hire, attempt to hire or assist any other person or entity
in hiring or attempting to hire any current employee of the Company or any
person who was a Company employee within the three (3) month period prior to the
termination of Executive's employment; provided, however that this prohibition
on solicitation of the Company's employees shall not apply to the person acting
as the Executive's current executive assistant as of the date of termination of
Executive's employment; and provided further that Executive agrees that
Executive will provide the Company with thirty (30) days prior written notice of
Executive's intent to solicit and/or hire such executive assistant upon
Executive's termination of employment.

               (ii) Solicit, divert, or take away, in competition with the
Company, the business or patronage of any current Company customer.
Notwithstanding the foregoing, this restriction shall not apply to any person or
entity who is no longer a customer at the time of any such solicitation by
Executive.

          (c)  Executive agrees that if he acts in violation of Sections 5 or 7
of this Agreement, the number of days that such violation exists will be added
to any period of limitations on the specific activities.

          (d)  The covenants contained in paragraph (a) shall be construed as a
series of separate covenants, one for each county, province, state, city or
other political subdivision of the Restricted Territory. Except for geographic
coverage, each such separate covenant shall be deemed identical in terms to the
covenant contained in paragraph (a). If, in any judicial proceeding, a court
refuses to enforce any of such separate covenants (or any part thereof), then
such unenforceable covenant (or such part) shall be eliminated from this
Agreement to the extent necessary to permit the remaining separate covenants (or
portions thereof) to be enforced. In the

                                      10
<PAGE>

event that the provisions of this Section 5 are deemed to exceed the time,
geographic or scope limitations permitted by applicable law, then such
provisions shall be reformed to the maximum time, geographic or scope
limitations, as the case may be, permitted by applicable laws.

          (e)  Without limitation of any of the provisions of this Section 5,
any payments to be made to Executive or for his benefit following termination of
his employment with the Company pursuant to Section 4 of this Agreement shall be
deemed to secure his agreements set forth in this Section 5 and such payments
may be terminated by the Company if Executive fails to observe the agreements
set forth in this Section 5 and fails to cure such failure within ten (10) days
of receipt of written notice of such failure.

          (f)  Executive (i) acknowledges that his skills and experience are
such that he can anticipate finding employment at a senior level in his
profession, and (ii) represents and agrees that the restrictions imposed by this
Section 5 on engaging in competitive business activities are necessary for the
protection of the legitimate interests and competitive position of the Company
and do not impose undue hardships on him.

     6.   Termination Obligations of Executive
          ------------------------------------

          (a)  Return of the Company's Property. Executive hereby acknowledges
and agrees that all personal property, including, without limitation, all books,
manuals, records, reports, notes, contracts, lists, files, disks and other media
with Company information, blueprints, and other documents, or materials, or
copies thereof, and equipment furnished to or prepared by Executive in the
course of or incident to Executive's employment, belong to the Company and shall
be promptly returned to the Company upon termination of Executive's employment.

          (b)  Cooperation in Pending Work. For two (2) months after termination
of Executive's employment, Executive agrees to fully cooperate with the Company
in all matters relating to the winding up of pending work on behalf of the
Company and the orderly transfer of work to other employees of the Company
following any termination of Executive's employment. For two (2) years after
termination of Executive's employment, Executive shall also cooperate in the
resolution of any dispute, including litigation of any action, involving the
Company that relates in any way to Executive's activities while employed by the
Company. In the event, however, Executive's services to the Company under this
Section 6(b) exceed forty (40) hours, the Company shall pay Executive for his
services at a rate equivalent to his Base Salary at the time of termination of
employment and shall pay Executive's out-of-pocket expenses incurred in
connection with his services. Such activities and all such activities shall be
scheduled for mutually convenient times.

     7.   Confidentiality.
          ---------------

          (a)  Confidential Information. Executive acknowledges that he has had
and will have access to certain information related to the business, operations,
future plans and customers of the Company, the disclosure or use of which could
cause the Company substantial losses and damages. Accordingly, Executive
covenants that during the term of his employment with the Company and thereafter
he will keep confidential all information and documents furnished to him by or
on behalf of the Company and not use the same to his advantage, except

                                      11
<PAGE>

to the extent such information or documents are lawfully obtained from other
sources on a non-confidential (as to the Company) basis or are in public domain
through no fault on his part or is consented to in writing by the Company.

          (b)  Innovations, Patents, and Copyrights. Executive agrees to
promptly disclose, in writing, all Innovations to the Company. Executive further
agrees to provide all assistance requested by the Company, at its expense, in
the preservation of its interests in any Innovations, and hereby assigns and
agrees to assign to the Company all rights, title and interest in and to all
worldwide patents, patent applications, copyrights, trade secrets and other
intellectual property rights in any Innovation. Furthermore, during the term of
this Agreement, the Company may, with Executive's written permission (such
permission not to be unreasonably withheld), use Executive's name and image as
appropriate in the conduct of its business.

          "Innovations" shall mean all developments, improvements, designs,
original works of authorship, formulas, processes, software programs, databases,
and trade secrets, whether or not patentable, copyrightable or protectable as
trade secrets, that Executive by himself or jointly with others, creates,
modifies, develops, or implements during the period of Executive's employment
which relate in any way to the Company's business. The term Innovations shall
not include Innovations developed entirely on Executive's own time without using
the Company's equipment, supplies, facilities or Confidential Information, and
which neither relate to the Company's business, nor result from any work
performed by or for the Company.

     8.   Right to Injunctive Relief. Executive agrees and acknowledges that a
          --------------------------
violation of the covenants contained in Sections 5, 6(a) and 7 of this Agreement
will cause irreparable damage to the Company, and that it is and may be
impossible to estimate or determine the damage that will be suffered by the
Company in the event of a breach by Executive of any such covenant. Therefore,
Executive further agrees that in the event of any violation or threatened
violation of such covenants, the Company shall be entitled as a matter of course
to an injunction out of any court of competent jurisdiction restraining such
violation or threatened violation by Executive, such right to an injunction to
be cumulative and in addition to whatever other remedies the Company may have.

     9.   Alternative Dispute Resolution. The Company and Executive mutually
          ------------------------------
agree that any controversy or claim arising out of or relating to this Agreement
or the breach thereof, or any other dispute between the parties relating in any
way to Executive's employment with the Company or the termination of that
relationship, including disputes arising under the common law and/or any federal
or state statutes, laws or regulations, shall be submitted to mediation before a
mutually agreeable mediator, which cost is to be borne equally by the parties.
In the event mediation is unsuccessful in resolving the claim or controversy,
such claim or controversy shall be resolved exclusively by binding arbitration.
The claims covered by this Agreement ("Arbitrable Claims") include, but are not
limited to, claims for wages or other compensation due; claims for breach of any
contract (including this Agreement) or covenant (express or implied); tort
claims; claims for discrimination (including, but not limited to, race, sex,
religion, national origin, age, marital status, medical condition, or
disability); claims for benefits (except where an employee benefit or pension
plan specifies that its claims procedure shall culminate in an arbitration
procedure different from this one), and claims for violation of any federal,
state, or

                                      12
<PAGE>

other law, statute, regulation, or ordinance, except claims excluded in the
following paragraph. The parties hereby waive any rights they may have to trial
by jury in regard to Arbitrable Claims.

     Claims Executive or the Company may have regarding Workers' Compensation or
unemployment compensation benefits and the noncompetition provisions of this
Agreement are not covered by the arbitration and mediation provisions of this
Agreement. Claims Executive or the Company may have for violation of the
proprietary information provisions of this Agreement as well as the terms and
provisions of Exhibit A of this Agreement are not covered by the arbitration and
mediation provisions of this Section 9 of this Agreement.

     Arbitration under this Agreement shall be the exclusive remedy for all
Arbitrable Claims. The Company and Executive agree that arbitration shall be
held in or near either Boulder or Denver, Colorado and shall be in accordance
with the then-current Employment Dispute Resolution Rules of the American
Arbitration Association, before an arbitrator licensed to practice law in
Colorado. The arbitrator shall have authority to award or grant both legal,
equitable, and declaratory relief. Such arbitration shall be final and binding
on the parties. The Federal Arbitration Act shall govern the interpretation and
enforcement of this Section 9 pertaining to Alternative Dispute Resolution.

     This Agreement to mediate and arbitrate survives termination of Executive's
employment.

     10.  Use of Executive's Likeness. For so long as Executive is employed by
          ---------------------------
the Company or an Affiliate, Executive authorizes the Company or an Affiliate to
use, reuse and to reasonably grant others the right to use and reuse without
additional compensation, Executive's name, photograph, likeness (including
caricature), voice and biographical information and any reproduction or
simulation thereof in any media now known or hereafter developed, for valid
business purposes of the Company or an Affiliate.

     11.  Exclusion of Property of Others. Executive will not bring to the
          -------------------------------
Company or use in the performance of his duties any documents or materials of a
former employer that are not generally available to the public or that have not
been legally transferred to the Company.

     12.  Executive's Authorization to Deduct Amounts Owed. Upon Executive's
          ------------------------------------------------
separation from employment, Company is authorized to deduct from Executive's
final wages or other monies due Executive any debts or amounts owed to Company
by Executive.

     13.  Integration. This Agreement and any exhibits attached hereto shall
          -----------
constitute the entire Agreement relating to the employment of Executive. This
Agreement shall be governed by the laws of Colorado, excluding laws on choice of
law. Any litigation regarding this Agreement shall only be brought and heard in
the federal or state courts located in Denver, Colorado and no transfer of venue
outside such area shall be permitted.

     14.  Unenforceability. If any paragraph or subparagraph of this Agreement
          ----------------
or any part thereof shall be unenforceable under any applicable laws,
notwithstanding such unenforceability the remainder of this Agreement shall
remain in full force and effect.

                                      13
<PAGE>

     15.  Binding. This Agreement shall inure to the benefit of and be binding
          -------
upon, the Company and its affiliates and subsidiaries.

     16.  Attorneys' Fees. In the event of any legal or arbitration action or
          ---------------
proceeding to enforce or interpret the provisions hereof, the prevailing party
shall be entitled to reasonable attorneys' fees and costs, whether or not the
proceeding results in a final judgment.

     17.  Survival. Terms which by their terms or sense are to survive
          --------
termination hereof shall so survive.

     18.  Notice. All notices or other communications required or permitted
          ------
hereunder shall be made in writing and shall be deemed to have been duly given
if delivered by hand, overnight delivery or mailed, postage prepaid, by
certified or registered mail, return receipt requested, and addressed to the
Company:

          Evoke Incorporated
          1157 Century Drive
          Louisville, Colorado  80027
          Attn: Board of Directors
          Telephone:     (303) 928-2400
          Facsimile:     (303) 928-2832

and to Executive at:

          Terence G. Kawaja
          205 East Street, Apt. 20C
          New York, NY 10021
          Telephone:     (212) 327-0765
          Facsimile:     (212) 585-1077

Executive and the Company shall be obligated to notify the other party of any
change in address.  Notice of change of address shall be effective only when
made in accordance with this Section.

     19.  Executive Acknowledgment. The parties acknowledge (a) that they have
          ------------------------
consulted with or have had the opportunity to consult with independent counsel
of their own choice concerning this Agreement, and (b) that they have read and
understand the Agreement, are fully aware of its legal effect, and have entered
into it freely based on their own judgment and not on any representations or
promises other than those contained in this Agreement.

                                      14
<PAGE>

     IN WITNESS WHEREOF, the parties have executed this Personal Services
Agreement as of the Effective Date.

                              EVOKE INCORPORATED

                              By:________________________________________
                              Title:_____________________________________

                              EXECUTIVE

                              ___________________________________________
                              Terence G. Kawaja

                                      15
<PAGE>

                                   EXHIBIT A

                              EVOKE INCORPORATED
                        NOTICE OF GRANT OF STOCK OPTION
                        -------------------------------

     Notice is hereby given of the following option grant (the "Option") to
purchase shares of the Common Stock of Evoke Incorporated, (the "Corporation"):

          Optionee:  Terence G. Kawaja
          --------

          Grant Date:  March __, 2000
          ----------

          Vesting Commencement Date:
          -------------------------

     Exercise Price:  $6.20 per share

     Number of Option Shares:    1,200,000 shares

          Expiration Date:  November __, 2009
          ---------------

          Type of Option:           Incentive Stock Option
          --------------      -----
                                X   Non-Statutory Stock Option
                              -----

          Date Exercisable:  Immediately Exercisable
          ----------------

          Vesting Schedule:  Except as otherwise provided in any other agreement
          ----------------
          between the Optionee and the Corporation, (a) the Option Shares shall
          be unvested and subject to repurchase by the Corporation at the
          Exercise Price paid per share, (b) Optionee shall acquire a vested
          interest in, and the Corporation's repurchase right shall accordingly
          lapse with respect to, (i) twenty-five percent (25%) of the Option
          Shares upon Optionee's completion of one (1) year of Service measured
          from the Vesting Commencement Date and (ii) the balance of the Option
          Shares in a series of thirty-six (36) successive equal monthly
          installments upon Optionee's completion of each additional month of
          Service over the thirty-six (36) month period of Service measured from
          the first anniversary of the Vesting Commencement Date and (c), in no
          event shall any additional Option Shares vest after Optionee's
          cessation of Service.

     Optionee understands and agrees that the Option is granted subject to and
in accordance with the terms of the Evoke Incorporated 2000 Equity Incentive
Plan (the "Plan").  Optionee further agrees to be bound by the terms of the Plan
and the terms of the Option as set forth in the
<PAGE>

Stock Option Agreement attached hereto as Exhibit A. Optionee understands that
any Option Shares purchased under the Option will be subject to the terms set
forth in the Stock Purchase Agreement attached hereto as Exhibit B.

     Optionee hereby acknowledges receipt of a copy of the Plan in the form
attached hereto as Exhibit C.

     REPURCHASE RIGHTS.  OPTIONEE HEREBY AGREES THAT ALL OPTION SHARES ACQUIRED
     -----------------
UPON THE EXERCISE OF THE OPTION SHALL BE SUBJECT TO CERTAIN REPURCHASE RIGHTS
AND RIGHTS OF FIRST REFUSAL EXERCISABLE BY THE CORPORATION AND ITS ASSIGNS.  THE
TERMS OF SUCH RIGHTS ARE SPECIFIED IN THE ATTACHED STOCK PURCHASE AGREEMENT.

     No Employment or Service Contract.  Nothing in this Notice or in the
     ---------------------------------
attached Stock Option Agreement or Plan shall confer upon Optionee any right to
continue in Service for any period of specific duration or interfere with or
otherwise restrict in any way the rights of the Corporation (or any Parent or
Subsidiary employing or retaining Optionee) or of Optionee, which rights are
hereby expressly reserved by each, to terminate Optionee's Service at any time
for any reason, with or without cause.

     Definitions.  All capitalized terms in this Notice shall have the meaning
     -----------
assigned to them in this Notice or in the attached Stock Option Agreement.

Date:   March____________, 2000

                                     EVOKE INCORPORATED

                                     _______________________________________
                                     By:____________________________________
                                     Title:_________________________________

                                     OPTIONEE

                                     _______________________________________

                                     Address:_______________________________

                                     _______________________________________
<PAGE>

ATTACHMENTS
-----------
Exhibit A - Stock Option Agreement
Exhibit B - Stock Purchase Agreement
Exhibit C - 2000 Equity Incentive Plan
<PAGE>

                                   EXHIBIT A
                                   ---------

                            STOCK OPTION AGREEMENT
                            ----------------------
<PAGE>

                                   EXHIBIT B
                                   ---------

                           STOCK PURCHASE AGREEMENT
                           ------------------------
<PAGE>

                                   EXHIBIT C
                                   ---------

                       EVOKE 2000 EQUITY INCENTIVE PLAN
                       --------------------------------

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