ASYST TECHNOLOGIES INC /CA/
S-8, 2000-01-13
SPECIAL INDUSTRY MACHINERY, NEC
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<PAGE>

  As filed with the Securities and Exchange Commission on January 13, 2000
                                                         Registration No. 33-
================================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                _______________

                                   FORM S-8
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933

                                _______________

                           ASYST TECHNOLOGIES, INC.
            (Exact name of registrant as specified in its charter)

      California                                         94-2942251
(State of Incorporation)                     (I.R.S. Employer Identification No.

                                48761 Kato Road
                              Fremont, CA  94538
                                (510) 661-5000

               ________________________________________________
                   (Address of principal executive offices)

                                _______________

                ASYST TECHNOLOGIES, INC. 1993 STOCK OPTION PLAN
                 PALO ALTO TECHNOLOGIES, INC. 1997 STOCK PLAN
               PROGRESSIVE SYSTEM TECHNOLOGIES, INC. 1995 STOCK
                          OPTION/STOCK ISSUANCE PLAN
                           (Full title of the plans)

                             Douglas J. McCutcheon
                           Asyst Technologies, Inc.
                                48761 Kato Road
                              Fremont, CA  94538
                                (510) 661-5000
(Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                _______________

                                  Copies to:

                              James C. Kitch Esq.
                              Cooley Godward llp
                              5 Palo Alto Square
                              3000 El Camino Real
                             Palo Alto, CA  94306
                                (650) 843-5000

                                _______________
<PAGE>

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
========================================================================================================================
                                                           Proposed Maximum      Proposed Maximum
     Title of Securities                                        Offering            Aggregate            Amount of
       to be Registered        Amount to be Registered    Price per Share (1)   Offering Price (1)    Registration Fee
- ------------------------------------------------------------------------------------------------------------------------
<S>                            <C>                        <C>                   <C>                   <C>
  Common Stock, no par value        618,559 shares          $ 4,440-128.3280       $ 28,358,068.28       $ 7, 486.53
========================================================================================================================
</TABLE>

(1)  Estimated solely for the purpose of calculating the amount of the
     registration fee pursuant to Rule 457(c) and (h)(1) under the Securities
     Act of 1933, as amended (the "Act"). The offering price per share and
     aggregate offering price for the unissued stock options are based upon the
     average of the high and low prices of Registrant's Common Stock as reported
     on the Nasdaq National Market System on January 7, 2000. The offering price
     per share and aggregate offering price for the outstanding stock options
     are based upon the exercise prices of such options. The following chart
     illustrates the calculation of the registration fee.

<TABLE>
<CAPTION>
=========================================================================================================
                                                                         Offering Price     Aggregate
                   Title of Shares                    Number of Shares      Per Share     Offering Price
- ---------------------------------------------------------------------------------------------------------
<S>                                                   <C>                <C>              <C>
 Shares issuable pursuant to outstanding stock
 options pursuant to the Registrant's 1993 Employee     $ 550,651           $   42.11      $ 23,353,659.56
 Stock Option Plan
- ---------------------------------------------------------------------------------------------------------
 Shares issuable pursuant to unissued stock options
 pursuant to the Registrant's 1993 Employee Stock          60,478           $  74.094      $  4,481,056.93
 Option Plan
- ---------------------------------------------------------------------------------------------------------
 Shares issuable pursuant to outstanding stock              3,472           $  4.4440       $    15,429.57
 options pursuant to Palo Alto Technologies, Inc.
 1997 Stock Plan
- ---------------------------------------------------------------------------------------------------------
 Shares issuable pursuant to outstanding stock              3,958           $128.3280       $   507,922.22
 options pursuant to the Progressive System
 Technologies, Inc. 1995 Stock Option/Stock
 Issuance Plan
=========================================================================================================
</TABLE>

     Approximate date of commencement of proposed sale to the public:  As soon
as practicable after this Registration Statement becomes effective.

                                       2.
<PAGE>

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents filed by Asyst Technologies, Inc. (the "Company")
with the Securities and Exchange Commission are incorporated by reference into
this Registration Statement:

     (a)  The Company's latest annual report on Form 10-K filed pursuant to
Sections 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), or either (1) the Company's latest prospectus filed pursuant to
Rule 424(b) under the Securities Act of 1933, as amended (the "Act"), that
contains audited financial statements for the Company's latest fiscal year for
which such statements have been filed, or (2) the Company's effective
registration statement on Form 10 or 20-F filed under the Exchange Act
containing audited financial statements for the Company's latest fiscal year.

     (b)  All other reports filed pursuant to Sections 13(a) or 15(d) of the
Exchange Act since the end of the fiscal year covered by the annual reports, the
prospectus or the registration statement referred to in (a) above.

     (c)  The description of the Company's Common Stock which is contained in a
registration statement filed under the Exchange Act, including any amendment or
report filed for the purpose of updating such description.

     All reports and other documents subsequently filed by the Company pursuant
to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act prior to the filing
of a post-effective amendment which indicates that all securities offered have
been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference herein and to be a part of this
registration statement from the date of the filing of such reports and
documents.

                           DESCRIPTION OF SECURITIES

                                Not applicable.

                    INTERESTS OF NAMED EXPERTS AND COUNSEL

                                Not applicable.

                   INDEMNIFICATION OF DIRECTORS AND OFFICERS

     The Company's Bylaws provide that Asyst will indemnify its directors and
officers to the fullest extent not prohibited by California law.  The Company is
also empowered under its Articles of Incorporation and Bylaws to enter into
indemnification contracts with its directors, officers, employees and agents and
to purchase insurance on behalf of any person whom it is required or permitted
to indemnify.  Pursuant to this provision, Asyst has entered into indemnity
agreements with each of its directors and officers.

     In addition, Asyst's Articles of Incorporation provide that, to the fullest
extent permitted by California law, Asyst's directors will not be liable for
monetary damages for breach of the directors' fiduciary duty of care to Asyst
and its shareholders. This provision in the Articles of Incorporation does not
eliminate the duty of care, and in appropriate circumstances, equitable remedies
such as an injunction or other forms of non- monetary relief would remain
available under California law. Each director will continue to be subject to
liability for breach of the director's duty of loyalty to Asyst, for acts or
omissions not in good faith or involving intentional misconduct or knowing and
culpable violations of law, that the director believes to be contrary to the
best interests of Asyst or its shareholders, involving a reckless disregard for
the director's duty to Asyst or its shareholders when the director was aware or
should have been aware of a risk of serious injury to Asyst or its shareholders,
or an unexcused pattern of inattention that amounts to an abdication of the
director's duty to Asyst or its shareholders, for improper transactions between
the director and Asyst and for improper distributions to shareholders and loans
to directors and officers or for acts or omissions by the director as an
officer. This provision also does not affect a director's responsibilities under
any other laws, such as the federal securities laws or state or federal
environmental laws.

                                       3.
<PAGE>

     There is no pending litigation or proceeding involving a director, officer,
employee or other agent of Asyst as to which indemnification is being sought,
nor is Asyst aware of any pending or threatened litigation that may result in
claims for indemnification by any director, officer, employee or other agent.

                      EXEMPTION FROM REGISTRATION CLAIMED

                                Not applicable.

                                   EXHIBITS

Exhibit
Number

   5.1         Opinion of Cooley Godward llp

  23.1         Consent of Arthur Andersen LLP

  23.2         Consent of Cooley Godward llp is contained in Exhibit 5 to this
               Registration Statement

  24.1*        Power of Attorney is contained on the signature pages.

  99.1*        Registrant's 1993 Stock Option Plan, as amended

  99.2         Palo Alto Technologies, Inc. 1997 Stock Plan

  99.3         Progressive System Technologies, Inc. 1995 Stock Option/Stock
               Issuance Plan

  99.4*        Form of Stock Option Agreement used in connection with the
               Registrant's 1993 Stock Option Plan

  99.5         Form of Stock Option Agreement used in connection with Palo Alto
               Technologies, Inc. 1997 Stock Plan

  99.6         Form of Notice of Grant and Stock Option Agreement used in
               connection with Progressive System Technologies, Inc. 1995
               Stock Option/Stock Issuance Plan

                                 UNDERTAKINGS

1.   The undersigned registrant hereby undertakes:

     (a)  To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

          (i)   To include any prospectus required by section 10(a)(3) of the
Securities Act;

          (ii)  To reflect in the prospectus any facts or events arising after
the effective date of the registration statement (or the most recent post-
effective amendment thereof) which, individually or in the aggregate, represent
a fundamental change in the information set forth in the registration statement.
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of prospectus
filed with the Commission pursuant to Rule 424(b) ((S) 230.424(b) of this
chapter) if, in the aggregate, the changes in volume and price represent no more
than a 20% change in the maximum aggregate offering price set forth in the
"Calculation of Registration Fee" table in the effective registration statement.

                                       4.
<PAGE>

          (iii)  To include any material information with respect to the plan of
distribution not previously disclosed in the registration statement or any
material change to such information in the registration statement;

     Provided, however, that paragraphs (a)(i) and (a)(ii) do not apply if the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the issuer pursuant to
section 13 or section 15(d) of the Exchange Act that are incorporated by
reference herein.

     (b)  That, for the purpose of determining any liability under the
Securities Act, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered herein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     (c)  To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

2.   The undersigned registrant hereby undertakes that, for purposes of
     determining any liability under the Securities Act, each filing of the
     registrant's annual report pursuant to Section 13(a) or Section 15(d) of
     the Exchange Act (and, where applicable, each filing of an employee benefit
     plan's annual report pursuant to section 15(d) of the Exchange Act) that is
     incorporated by reference in the Registration Statement shall be deemed to
     be a new registration statement relating to the securities offered herein,
     and the offering of such securities at that time shall be deemed to be the
     initial bona fide offering thereof.

3.   Insofar as indemnification for liabilities arising under the Securities Act
     may be permitted to directors, officers and controlling persons of the
     registrant pursuant to the foregoing provisions, or otherwise, the
     registrant has been advised that in the opinion of the Securities and
     Exchange Commission such indemnification is against public policy as
     expressed in the Securities Act and is, therefore, unenforceable.  In the
     event that a claim for indemnification against such liabilities (other than
     the payment by the registrant of expenses incurred or paid by a director,
     officer or controlling person of the registrant in the successful defense
     of any action, suit or proceeding) is asserted by such director, officer or
     controlling person in connection with the securities being registered, the
     registrant will, unless in the opinion of its counsel the matter has been
     settled by controlling precedent, submit to a court of appropriate
     jurisdiction the question whether such indemnification by it is against
     public policy as expressed in the Securities Act and will be governed by
     the final adjudication of such issue.

                                       5.
<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Fremont, State of California, on January 13, 2000.

                               Asyst Technologies, Inc.

                               By:   /s/ Mihir Parikh
                                  ---------------------------------------
                                     Mihir Parikh

                               Title:  Chairman of the Board and Chief Executive
                                       Officer

                               POWER OF ATTORNEY

     Know All Persons By These Presents, that each person whose signature
appears below constitutes and appoints Mihir Parikh and Douglas J. McCutcheon,
and each or any one of them, his true and lawful attorney-in-fact and agent,
with full power of substitution and resubstitution, for him and in his name,
place and stead, in any and all capacities, to sign any and all amendments
(including post-effective amendments) to this Registration Statement, and to
file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
connection therewith, as fully to all intents and purposes as he might or could
do in person, hereby ratifying and confirming all that said attorneys-in-fact
and agents, or any of them, or their or his substitutes or substitute, may
lawfully do or cause to be done by virtue hereof.

                                       6.
<PAGE>

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
Signature                                          Title                                    Date
<S>                                                <C>                                      <C>
/s/ Mihir Parikh                                   Chairman of the Board and Chief          January 10, 2000
- -----------------------------------------          Executive Officer
Mihir Parikh                                       (Principal Executive Officer)

/s/ Douglas J. McCutheon                           Senior Vice President and Chief          January 3, 2000
- -----------------------------------------          Financial Officer
Douglas J. McCutcheon                              (Principal Financial and
                                                   Accounting Officer)

/s/ Walter W. Wilson                               Director                                 January 10, 2000
- -----------------------------------------
Walter W. Wilson

/s/ Tsuyoshi Kawanishi                             Director                                 January 4, 2000
- -----------------------------------------
Tsuyoshi Kawanishi

/s/ Ashok Sinha                                    Director                                 January 3, 2000
- -----------------------------------------
Ashok Sinha

/s/ Stanley Grubel                                 Director                                 January 4, 2000
- -----------------------------------------
Stanley Grubel

/s/ Robert A. McNamara                             Director                                 January 3, 2000
- -----------------------------------------
Robert A. McNamara
</TABLE>


                                       7.
<PAGE>

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
Exhibit                                                                                        Sequential Page
Number                                       Description                                          Numbers
<S>                                                                                            <C>
  5.1     Opinion of Cooley Godward llp

 23.1     Consent of Arthur Andersen llp

 23.2     Consent of Cooley Godward llp is contained in Exhibit 5.1 to this Registration
          Statement

 24.1*    Power of Attorney is contained on the signature pages.

 99.1*    Registrant's 1993 Stock Option Plan, as amended

 99.2     Palo Alto Technologies, Inc. 1997 Stock Plan

 99.3     Progressive System Technologies, Inc. 1995 Stock Option/Stock Issuance Plan

 99.4*    Form of Stock Option Agreement used in connection with the Registrant's 1993
          Stock Option Plan

 99.5     Form of Stock Option Agreement used in connection with Palo Alto Technologies,
          Inc. 1997 Stock Plan

 99.6     Form of Notice of Grant and Stock Option Agreement used in connection
          with Progressive System Technologies, Inc. 1995 Stock Option/Stock
          Issuance Plan
</TABLE>

                                       8

<PAGE>

                                                                     EXHIBIT 5.1

January 13, 2000

Asyst Technologies, Inc.

48761 Kato Road
Fremont, CA  94538

Ladies and Gentlemen:

You have requested our opinion with respect to certain matters in connection
with the filing by Asyst Technologies, Inc. (the "Company") of a Registration
Statement on Form S-8 (the "Registration Statement") with the Securities and
Exchange Commission covering the offering of up to 619,245 shares of the
Company's Common Stock, no par value, (the "Shares") pursuant to its 1993 Stock
Option Plan, the Palo Alto Technologies, Inc. 1997 Stock Option Plan and the
Progressive System Technologies, Inc. 1995 Stock Option/Stock Issuance Plan
(collectively, the "Plans").

In connection with this opinion, we have examined the Registration Statement and
related Prospectus, your Articles of Incorporation and Bylaws, as amended, and
such other documents, records, certificates, memoranda and other instruments as
we deem necessary as a basis for this opinion.  We have assumed the genuineness
and authenticity of all documents submitted to us as originals, the conformity
to originals of all documents submitted to us as copies thereof, and the due
execution and delivery of all documents where due execution and delivery are a
prerequisite to the effectiveness thereof.

On the basis of the foregoing, and in reliance thereon, we are of the opinion
that the Shares, when sold and issued in accordance with the Plans, the
Registration Statement and related Prospectus, will be validly issued, fully
paid, and nonassessable (except as to shares issued pursuant to certain deferred
payment arrangements, which will be fully paid and nonassessable when such
deferred payments are made in full).

We consent to the filing of this opinion as an exhibit to the Registration
Statement.

Very truly yours,

Cooley Godward llp

By: /s/ James C. Kitch
    ----------------------------------
    James C. Kitch

<PAGE>

                                 EXHIBIT 23.1


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


     As independent public accountants, we hereby consent to the incorporation
by reference in this registration statement of our report dated August 12, 1999
included in Asyst Technologies, Inc.'s Form 8-K/A for the year ended March 31,
1999.


                                    /s/ Arthur Andersen LLP

San Jose, California
January 10, 2000

<PAGE>

                                                                    EXHIBIT 99.2

                         PALO ALTO TECHNOLOGIES, INC.

                                1997 STOCK PLAN

1.   Purposes of the Plan.  The purposes of this Stock Plan are to attract and
retain the best available personnel for positions of substantial responsibility,
to provide additional incentive to Employees, Directors and Consultants and to
promote the success of the Company's business.  Options granted under the Plan
may be Incentive Stock Options or Nonstatutory Stock Options, as determined by
the Administrator at the time of grant.  Stock Purchase Rights may also be
granted under the Plan.

2.   Definitions.  As used herein, the following definitions shall apply:

     (a) "Administrator" means the Board or any of its Committees as shall be
administering the Plan in accordance with Section 4 hereof.

     (b)  "Applicable Laws" means the requirements relating to the
administration of stock option plans under U.S. state corporate laws, U.S.
federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of
any other country or jurisdiction where Options or Stock Purchase Rights are
granted under the Plan.

     (c)  "Board" means the Board of Directors of the Company.

     (d)  "Code" means the Internal Revenue Code of 1986, as amended.

     (e)  "Committee" means a committee of Directors appointed by the Board in
accordance with Section 4 hereof.

     (f)  "Common Stock" means the Common Stock of the Company.

     (g)  "Company" means Palo Alto Technologies, a California corporation.

     (h)  "Consultant" means any person who is engaged by the Company or any
Parent or Subsidiary to render consulting or advisory services to such entity.

     (i)  "Director" means a member of the Board of Directors of the Company.

     (j)  "Disability" means total and permanent disability as defined in
Section 22(e)(3) of the Code.

     (k)  "Employee" means any person, including Officers and Directors,
employed by the Company or any Parent or Subsidiary of the Company. A Service
Provider shall nor cease to be an Employee in the case of (i) any leave of
absence approved by the Company or (ii) transfers between locations of the
Company or between the Company. Its Parent, any Subsidiary, or any successor.
For purposes of Incentive Stock Options, no such leave may exceed ninety days,

                                       1.
<PAGE>

unless reemployment upon expiration of such leave is guaranteed by statute or
contract.  If reemployment upon expiration of a leave of absence approved by the
Company is not so guaranteed, on the 181st day of such leave any Incentive Stock
Option held by the Optionee shall cease to be treated as an Incentive Stock
Option and shall be treated for tax purposes as a Nonstatutory Stock Option.
Neither service as a Director nor payment of a director's fee by the Company
shall be sufficient to constitute "employment" by the Company.

     (l)  "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     (m)  "Fair Market Value" means, as of any date, the value of Common Stock
determined as follows:

          (i)   If the Common Stock is listed on any established stock exchange
or a national market system, including without limitation the Nasdaq National
Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market, its Fair
Market Value shall be the closing sales price for such stock (or the closing
bid, if no sales were reported) as quoted on such exchange or system for the
last market trading day prior to the time of determination, as reported in The
Wall Street Journal or such other source as the Administrator deems reliable;

          (ii)  If the Common Stock is regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value
shall be the mean between the high bid and low asked prices for the Common Stock
on the last market trading day prior to the day of determination or

          (iii) In the absence of an established market for the Common Stock,
the Fair Market Value thereof shall be determined in good faith by the
Administrator.

     (n)  "Incentive Stock Option" means all Option intended to qualify as an
incentive stock option within the meaning of Section 422 of the Code.

     (o)  "Nonstatutory Stock Option" means an Option not intended to qualify as
an Incentive Stock Option.

     (p)  "Officer" means a person who is an officer of the Company within the
meaning of Section 16 of the Exchange Act and the rules and regulations
promulgated thereunder.

     (q)  "Option" means a stock option granted pursuant to the Plan.

     (r)  "Option Agreement" means a written or electronic agreement between the
Company and an Optionee evidencing the terms and conditions of an individual
Option grant.  The Option Agreement is subject to the terms and conditions of
the Plan.

     (s)  "Option Exchange Program" means a program whereby outstanding Options
are exchanged for Options with a lower exercise price.

     (t)  "Optioned Stock" means the Common Stock subject to an Option or a
Stock Purchase Right.

                                       2.
<PAGE>

     (u)  "Optionee" means the holder of an outstanding Option or Stock Purchase
Right granted under the Plan.

     (v)  "Parent" means a "parent corporation," whether now or hereafter
existing, as defined in Section 424(e) of the Code.

     (w)  "Plan" means this 1997 Stock Plan.

     (x)  "Restricted Stock" means shares of Common Stock acquired pursuant to a
grant of a Stock Purchase Right under Section 11 below.

     (y)  "Section 16(b)" means Section 16(b) of the Securities Exchange Act of
1934, as amended.

     (z)  "Service Provider" means an Employee, Director or Consultant.

     (aa) "Share" means a share of the Common Stock as adjusted in accordance
with Section 12 below.

     (bb) "Stock Purchase Right" means a right to purchase Common Stock pursuant
to Section 11 below.

     (cc) "Subsidiary" means a "subsidiary corporation," whether now or
hereafter existing, as defined m Section 424(f) of the Code.

3.   Stock Subject to the Plan.  Subject to the provisions of Section 12 of the
Plan, the maximum aggregate number of Shares which may be subject to option and
sold under the Plan is 2,000,000 Shares.  The Shares may be authorized but
unissued, or reacquired Common Stock.

     If an Option or Stock Purchase Right expires or becomes unexercisable
without having been exercised in full, or is surrendered pursuant to an Option
Exchange Program.  the unpurchased Shares which were subject thereto shall
become available for future grant or sale under the Plan (unless the Plan has
terminated).  However, Shares that have actually been issued under the Plan,
upon exercise of either an Option or Stock Purchase Right, shall not be returned
to the Plan and shall not become available for future distribution under the
Plan, except that if Shares of Restricted Stock are repurchased by the Company
at their original purchase price, such Shares shall become available for furore
grant under the Plan.

4.   Administration of the Plan.

     (a)  Administrator. The Plan shall be administered by the Board or a
Committee appointed by the Board, which Committee shall be constituted to comply
with Applicable Laws.

     (b)  Powers of the Administrator. Subject to the provisions of the Plan
and, in the case of a Committee, the specific duties delegated by the Board to
such Committee, and subject to the approval of any relevant authorities, the
Administrator shall have the authority in its discretion:

                                       3.
<PAGE>

          (i)    to determine the Fair Market Value;

          (ii)   to select the Service Providers to whom Options and Stock
Purchase Rights may from time to time be granted hereunder;

          (iii)  to determine the number of Shares to be covered by each such
award granted hereunder;

          (iv)   to approve forms of agreement for use under the Plan;

          (v)    to determine the terms and conditions, of any Option or Stock
Purchase Right granted hereunder. Such terms and conditions include, but are not
limited to, the exercise price, the time or times when Options or Stock Purchase
Rights may be exercised (which may be based on performance criteria), any
vesting acceleration or waiver of forfeiture restrictions, and any restriction
or limitation regarding any Option or Stock Purchase Right or the Common Stock
relating thereto, based in each case on such factors as the Administrator, in
its sole discretion, shall determine;

          (vi)   to determine whether and under what circumstances an Option may
be settled in cash under subsection 9(e) instead of Common Stock;

          (vii)  to reduce the exercise price of ally Option to the then current
Fair Market Value if the Fair Market Value of the Common Stock covered by such
Option has declined since the date the Option was granted;

          (viii) to initiate an Option Exchange Program;

          (ix)   to prescribe, amend and rescind rules and regulations relating
to the Plan, including rules and regulations relating to sub-plans established
for the purpose of qualifying for preferred tax treatment under foreign tax
laws;

          (x)    to allow Optionees to satisfy withholding tax obligations by
electing to have the Company withhold from the Shares to be issued upon exercise
of an Option or Stock Purchase Right that number of Shares having a Fair Market
Value equal to the amount required to be withheld. The Fair Market Value of the
Shares to be withheld shall be determined on the date that the amount of tax to
be withheld is to be determined. All elections by Optionees to have Shares
withheld for this purpose shall be made in such form and under such conditions
as the Administrator may deem necessary or advisable; and

          (xi)   to construe and interpret the terms of the Plan and awards
granted pursuant to the Plan.

     (c)  Effect of Administrator's Decision.  All decisions, determinations and
interpretations of the Administrator shall be final and binding on all
Optionees.

                                       4.
<PAGE>

5.   Eligibility.

     (a)  Nonstatutory Stock Options and Stock Purchase Rights may be granted to
Service Providers incentive Stock Options may be granted only to Employees.

     (b)  Each Option shall be designated in the Option Agreement as either an
incentive Stock Option or a Nonstatutory Stock Option.  However, notwithstanding
such designation, to the extent that the aggregate Fair Market Value of the
Shares with respect to which Incentive Stock Options are exercisable for the
first time by the Optionee during any calendar year (under all plans of the
Company and any Parent or Subsidiary) exceeds $100,000, such Options shall be
treated as Nonstatutory Stock Options.  For purposes of this Section 5(b).
Incentive Stock Options shall be taken into account in the order in which they
were granted.  The Fair Market Value of the Shares shall be determined as of the
time the Option with respect to such Shares is granted.

     (c)  Neither the Plan nor any Option or Stock Purchase Right shall confer
upon any Optionee any right with respect to continuing the Optionee's
relationship as a Service Provider with the Company, nor shall it interfere in
any way with his or her right or the Company's right to terminate such
relationship at any time, with or without cause.

6.   Term of Plan.  The Plan shall become effective upon its adoption by the
Board.  It shall continue in effect for a term often (10) years unless sooner
terminated under Section 14 of the Plan.

7.   Term of Option.  The term of each Option shall be stated in the Option
Agreement; provided, however, that the term shall be no more than ten (10) years
from the date of grant thereof.  In the case of an Incentive Stock Option
granted to an Optionee who, at the time the Option is granted, owns stock
representing more than ten percent (10%) of the voting power of all classes of
stock of the Company or any Parent or Subsidiary, the term of the Option shall
be five (5) years from the date of grant or such shorter term as may be provided
in the Option Agreement.

8.   Option Exercise Price and Consideration.

     (a)  The per share exercise price for the Shares to be issued upon exercise
of an Option shall be such price as is determined by the Administrator, but
shall be subject to the following:

          (i)  In the case of an Incentive Stock Option

               (1)  granted to an Employee who, at the time of grant of such
Option, owns stock representing more than ten percent (10%) of the voting power
of all classes of stock of the Company or any Parent or Subsidiary, the exercise
price shall be no less than 110% of the Fair Market Value per Share on the date
of grant.

               (2)  granted to any other Employee, the per Share exercise price
shall be no less than 100% of the Fair Market Value per Share on the date of
grant.

                                       5.
<PAGE>

          (ii)  In the case of a Nonstatutory Stock Option

                (1)  granted to a Service Provider who, at the time of grant of
such Option, owns stock representing more than ten percent (10%) of the voting
power of all classes of stock of the Company or any Parent or Subsidiary, the
exercise price shall be no less than 110% of the Fair Market Value per Share on
the date of the giant.

                (2)  granted to any other Service Provider, the per Share
exercise price shall be no lets than 85% of the Fair Market Value per Sham on
the date of grant.

          (iii) Notwithstanding the foregoing, Options may be granted with a per
Shaw exercise price other than as required above pursuant to a merger or other
corporate transaction.

     (b)  The consideration to be paid for the Shares to be issued upon exercise
of an Option, including the method of payment shall be determined by the
Administrator (and, in the case of an Incentive Stock Option, shall be
determined at the time of grant). Such consideration may consist of (l) cash,
(2) check, (3) promissory note, (4) other Shares which (x) in the case of Shares
acquired upon exercise of an Option, have been owned by the Optionee for more
than six months on the date of surrender, and (y) have a Fair Market Value on
the date of surrender equal to the aggregate exercise price of the Shares as to
which such Option shall be exercised, (5) consideration received by the Company
under a cashless exercise program implemented by the Company in connection with
the Plan, or (6) any combination of the foregoing methods of payment. In making
its determination as to the type of consideration to accept, the Administrator
shall consider if acceptance of such consideration may be reasonably expected to
benefit the Company.

9.   Exercise of Option.

     (a)  Procedure for Exercise; Rights as a Shareholder.  Any Option granted
hereunder shall be exercisable according to the terms hereof at such times and
under such conditions as determined by the Administrator and set forth in the
Option Agreement.  Except in the case of Options granted to Officers, Directors
and Consultants, Options shall become exercisable at a rate of no less than 20%
per year over five (5) years from the date the Options are granted.  Unless the
Administrator provides otherwise, vesting of Options granted hereunder shall be
tolled during any unpaid leave of absence.  An Option may not be exercised for a
fraction of a Share.

     An Option shall be deemed exercised when the Company receives: (i) written
or electronic notice of exercise (in accordance with the Option Agreement) from
the person entitled to exercise the Option, and (ii) full payment for the Shares
with respect to which the Option is exercised, Full payment may consist of any
consideration and method of payment authorized by the Administrator and
permitted by the Option Agreement and the Plan.  Shares issued upon exercise of
an Option shall be issued in the name of the Optionee or, if requested by the
Optionee, in the name of the Optionee and his or her spouse.  Until the Shares
arc issued (as evidenced by the appropriate entry on the books of the Company of
a duly authorized transfer agent of the Company), no right to vote or receive
dividends or any other rights as a shareholder shall exist with respect to the
Shares notwithstanding the exercise of the Option.  The Company

                                       6.
<PAGE>

shall issue (or cause to be issued) such Shares promptly after the Option is
exercised. No adjustment will be made for a dividend or other right for which
the record date is prior to the date the Shares are issued, except as provided
in Section 12 of the Plan.

     Exercise of an Option m any manner shall result in a decrease in the number
of Shares thereafter available, both for purposes of the Plan and for sale under
the Option, by the number of Shares as to which the Option is exercised.

     (b)  Termination of Relationship as a Service Provider. If an Optionee
ceases to be a Service Provider, such Optionee may exercise his or her Option
within such period of time as is specified in the Option Agreement (of at least
thirty (30) days) to the extent that the Option is vested on the date of
termination (but in no event later than the expiration of the term of the Option
as set forth in the Option Agreement). In the absence of a specified time in the
Option Agreement, the Option shall remain exercisable for three (3) months
following the Optionee's termination. If, on the date often termination, the
Optionee is not vested as to his or her entire Option, the Shares covered by the
unvested portion of the Option shall revert to the Plan. If, after termination,
the Optionee does not exercise his or her Option within the time specified by
the Administrator, the Option shall terminate, and the Shares covered by such
Option shall revert to the Plan.

     (c)  Disability of Optionee. If an Optionee ceases to be a Service Provider
as a result of the Optionee's Disability, the Optionee may exercise his or her
Option within such period of tune as is specified in the Option Agreement (of at
least six (6) months) to the extent the Option is vested on the date of
termination (but in no event later than the expiration of the term of such
Option as set forth in the Option Agreement). In the absence of a specified time
m the Option Agreement, the Option shall remain exercisable for twelve (12)
months following the Optionee's termination. If, on the date of termination, the
Optionee is not vested as to his or her entire Option, the Shares covered by the
unvested portion of the Option shall revert to the Plan. If, after termination,
the Optionee does not exercise his or her Option within the time specified
herein, the Option shall terminate, and the Shares covered by such Option shall
revert to the Plan.

     (d)  Death of Optionee.  If an Optionee dies while a Service Provider, the
Option may be exercised within such period of time as is specified in the Option
Agreement (of at least six (6) months) to the extent that the Option is vested
on the date of death (but in no event later than the expiration of the term of
such Option as set forth in the Option Agreement) by the Optionee's estate or by
a person who acquires the right to exercise the Option by bequest or
inheritance.  In the absence of a specified time in the Option Agreement, the
Option shall remain exercisable for twelve (12) months following the Optionee's
termination.  If, at the time of death, the Optionee is not vested as to the
entire Option, the Shares covered by the unvested portion of the Option shall
immediately revert to the Plan.  If the Option is not so exercised within the
time specified herein, the Option shall terminate, and the Shares covered by
such Option shall revert to the Plan.

     (e)  Buyout Provisions. The Administrator may at any time offer to buy out
for a payment in cash or Shares, an Option previously granted, based on such
terms and conditions as

                                       7.
<PAGE>

the Administrator shall establish and communicate to the Optionee at the time
that such offer is made.

10.  Non-Transferability of Options and Stock Purchase Rights.  Options and
Stock purchase Rights may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any, manner other than by will or by the laws of
descent or distribution and may be exercised, during the lifetime of the
Optionee, only by the Optionee.

11.  Stock Purchase Rights.

     (a)  Rights to Purchase. Stock Purchase Rights may be issued either alone,
in addition to, or in tandem with other awards granted under the Plan and/or
cash awards made outside of the Plan. After the Administrator determines that it
will offer Stock Purchase Rights under the Plan, it shall advise the offeree in
writing or electronically of the terms, conditions and restrictions related to
the offer, including the number of Shares that such person shall be entitled to
purchase, the price to be paid, and the time within which such person must
accept such offer. The terms of the offer shall comply in all respects with
Section 260.140.42 of Title 10 of the California Code of Regulations. The offer
shall be accepted by execution of a Restricted Stock purchase agreement in the
form determined by the Administrator.

     (b)  Repurchase Option.  Unless the Administrator determines otherwise, the
Restricted Stock purchase agreement shall grant the Company a repurchase option
exercisable upon the voluntary or involuntary termination of the purchaser's
service with the Company for any reason (including death or disability).  The
purchase price for Shares repurchased pursuant to the Restricted Stock purchase
agreement shall be the original price paid by the purchaser and may be paid by
cancellation of any indebtedness of the purchaser to the Company.  The
repurchase option shall lapse at such rate as the Administrator may determine.
Except with respect to Shares purchased by Officers, Directors and Consultants,
the repurchase option shall in no case lapse at a rate of less than 20% per year
over five years from the date of purchase.

     (c)  Other Provisions. The Restricted Stock purchase agreement shall
contain such other terms, provisions and conditions not inconsistent with the
Plan as may be determined by the Administrator in its sole discretion.

     (d)  Rights as a Shareholder. Once the Stock Purchase Right is exercised,
the purchaser shall have rights equivalent to those of a shareholder and shall
be a shareholder when his or her purchase is entered upon the records of the
duly authorized transfer agent of the Company No adjustment shall be made for a
dividend or other right for which the record date is prior to the date the Stock
Purchase Right is exercised, except as provided in Section 12 of the Plan.

12.  Adjustments Upon Changes in Capitalization, Merger or Asset Sale.

     (a)  Changes in Capitalization.  Subject to any required action by the
shareholders of the Company, the number of shares of Common Stock covered by
each outstanding Option or Stock Purchase Right, and the number of ;hares of
Common Stock which have been authorized for issuance under the Plan but as to
which no Options or Stock Purchase Rights have yet been granted or which have
been returned to the Plan upon cancellation or expiration of an Option or

                                       8.
<PAGE>

Stock Purchase Right, as well as the price per share of Common Stock covered by
each such outstanding Option or Stock Purchase Right, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the Company. The conversion of any convertible securities of
the Company shall not be deemed to have been "effected without receipt of
consideration "Such adjustment shall be made by the Board, whose determination
in that respect shall be final, binding and conclusive. Except as expressly
provided herein, no issuance by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of shares of Common Stock subject to an Option or Stock Purchase Right.

     (b)  Dissolution or Liquidation. In the event of the proposed dissolution
or liquidation of the Company, the Administrator shall notify each Option as
soon as practicable prior to the effective date of such proposed transaction.
The Administrator in its discretion may provide for an Optionee to have the
right to exercise his or her Option until fifteen (15) days prior to such
transaction as to all of the Optioned Stock covered thereby, including Shares as
to which the Option would not otherwise be exercisable. In addition, the
Administrator may provide that any Company repurchase option applicable to any
Shares purchased upon exercise of an Option or Stock Purchase Right shall lapse
as to all such Shares, provided the proposed dissolution or liquidation takes
place at the time and in the manner contemplated. To the extent it has not been
previously exercised, an Option or Stock Purchase Right will terminate
immediately prior to the consummation of such proposed action.

     (c)  Merger or Asset Sale.  In the event of a merger of the Company with or
into another corporation, or the sale of substantially ail of the assets of the
Company, each outstanding Option and Stock Purchase Right shall be assumed or an
equivalent option or right substituted by the successor corporation or a Parent
or Subsidiary of the successor corporation.  In the event that the successor
corporation refuses to assume or substitute for the Option or Stock Purchase
Right, the Optionee shall fully vest in and have the right to exercise the
Option or Stock Purchase Right as to all of the Optioned Stock, including Shares
as to which it would not otherwise be vested or exercisable.  If an Option or
Stock Purchase Right becomes fully vested and exercisable m lieu of assumption
or substitution in the event of a merger or sale of assets, the Administrator
shall notify the Optionee in writing or electronically that the Option or Stock
Purchase Right shall be fully exercisable for a period of fifteen (15) days from
the date of such notice, and the Option or Stock Purchase Right shall terminate
upon the expiration of such period.  For the purposes of this paragraph, the
Option or Stock Purchase Right shall be considered assumed if, following the
merger or sale of assets, the option or right confers the right to purchase or
receive, for each Share of Optioned Stock subject to the Option or Stock
Purchase Right immediately prior to the merger or sale of assets, the
consideration (whether stock, cash, or other securities or property) received in
the merger or sale of assets by holders of Common Stock for each Share held on
the effective date of the transaction (and if holders were offered a choice of
consideration, the type of consideration chosen by the holders of a majority of
the outstanding Shares); provided, however, that if such consideration received
in the merger or sale of assets is not solely common stock of the successor
corporation or its Parent, the Administrator may, with the consent of the
successor corporation, provide for the consideration to be received upon the

                                       9.
<PAGE>

exercise of the Option or Stock Purchase, Right, for each share of Optioned
Stack subject to the Option or Stock Purchase Right, to be solely common stock
of the successor corporation or its Parent equal in fair market value to the per
share consideration received by holders of Common Stock in the merger or sale of
assets.

13.  Time of Granting Options and Stock Purchase Rights.  The date of grant of
an Option or Stock Purchase Right shall, for all purposes, be the date on which
the Administrator makes the determination granting such Option or Stock Purchase
Right, or such other date as is determined by the Administrator.  Notice of the
determination shall be given to each Employee or Consultant to whom an Option or
Stock Purchase Right is so granted within a reasonable time after the date of
such grant.

14.  Amendment and Termination of the Plan.

     (a)  Amendment and Termination.  The Board may at any time amend, alter,
suspend or terminate the Plan.

     (b)  Shareholder Approval. The Board shall obtain shareholder approval of
any Plan amendment to the extent necessary and desirable to comply with
Applicable Laws.

     (c)  Effect of Amendment or Termination. No amendment, alteration,
suspension or termination of the Plan shall impair the rights of any Optionee,
unless mutually agreed otherwise between the Optionee and the Administrator,
which agreement must be in writing and signed by the Optionee and the Company.
Termination of the Plan shall not affect the Administrator's ability to exercise
the powers granted to it hereunder with respect to Options granted under the
Plan prior to the date of such termination.

15.  Conditions Upon Issuance of Shares.

     (a)  Legal Compliance. Shares shall not be issued pursuant to the exercise
of an Option unless the exercise of such Option and the issuance and delivery of
such Shares shall comply with Applicable Laws and shall be further subject to
the approval of counsel for the Company with respect to such compliance.

     (b)  Investment Representations. As a condition to the exercise of an
Option, the Administrator may require the person exercising such Option to
represent and warrant at the time of any such exercise that the Shares are being
purchased only for investment and without any present intention to sell or
distribute such Shares if, in the opinion of counsel for the Company such a
representation is required.

16.  Inability to Obtain Authority.  The inability of the Company to obtain
authority from any regulatory body having jurisdiction, which authority is
deemed by the Company counsel to be necessary to the lawful issuance and sale of
any Shares hereunder, shall relieve the Company of ally liability in respect of
the failure to issue or sell such Shares as to which such requisite authority
shall not have been obtained.

                                      10.
<PAGE>

17.  Reservation of Shares.  The Company, during the term of this plan.  Shall
at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.

18.  Shareholder Approval.  The Plan shall be subject to approval by the
shareholders of the Company within twelve (12) months after the date the Plan is
adopted, such shareholder approval shall be obtained in the degree and manner
required under Applicable Laws.

19.  Information to Optionees and Purchasers.  The Company shall provide to each
Optionees and to each individual who acquires Share; pursuant to the Plan, not
less frequently than annually during the period such Optionee or purchaser has
one or more Options or Stock Purchase Rights outstanding, and, in the case of an
individual who acquires Shares pursuant to the Plan, during the period such
individual owns such Shares, copies of annual financial statements.  The Company
shall not be required to provide such statements to key), employees whose duties
in connection with the Company assure their access to equivalent information.

                                      11.

<PAGE>

                                                                    EXHIBIT 99.3

                     PROGRESSIVE SYSTEM TECHNOLOGIES, INC.
                     1995 STOCK OPTION/STOCK ISSUANCE PLAN

                                  ARTICLE ONE

                              GENERAL PROVISIONS

     I.   PURPOSE OF THE PLAN

     This 1995 Stock Option/Stock Issuance Plan is intended to promote the
interests of Progressive System Technologies, Inc., a Texas corporation, by
providing eligible persons with the opportunity to acquire a proprietary
interest, or otherwise increase their proprietary interest, in the Corporation
as an incentive for them to remain in the service of the Corporation.

     Capitalized terms shall have the meanings assigned to such terms in the
attached Appendix.

     II.  STRUCTURE OF THE PLAN

          A.   The Plan shall be divided into two (2) separate equity programs:

                    (i)  the Option Grant Program under which eligible persons
may, at the discretion of the Plan Administrator, be granted options to purchase
shares of Common Stock, and

                    (ii) the Stock Issuance Program under which eligible persons
may, at the discretion of the Plan Administrator, be issued shares of Common
Stock directly, either through the immediate purchase of such shares or as a
bonus for services rendered the Corporation (or any Parent or Subsidiary).

          B.   The provisions of Articles One and Four shall apply to both the
equity programs under the Plan and shall accordingly govern the interests of all
persons under the Plan.

     III. ADMINISTRATION OF THE PLAN

          A.   The Plan shall be administered by the Board.  However, any or all
administrative functions otherwise exercisable by the Board may be delegated to
the Committee.  Members of the Committee shall serve for such period of time as
the Board may determine and may be removed by the Board at any time.  The Board
may also at any time terminate the functions of the Committee and reassume all
powers and authority previously delegated to the Committee.

                                       1.
<PAGE>

          B.   The Plan Administrator shall have full power and authority to
establish such rules and regulations as it may deem appropriate for proper
administration of the Plan and to make such determinations under, and issue such
interpretations of, the Plan and any outstanding options or stock issuances
thereunder as it may deem necessary or advisable.  Decisions of the Plan
Administrator shall be final and binding on all parties who have an interest in
the Plan or any option or stock issuance thereunder.

     IV.  ELIGIBILITY

          A.   The persons eligible to participate in the Plan are as follows:

               (i)   Employees,

               (ii)  non-employee members of the Board or the board of directors
of any Parent or Subsidiary, and

               (iii) consultants and other independent advisors who provide
services to the Corporation (or any Parent or Subsidiary).

          B.   The Plan Administrator shall have full authority to determine,
(i) with respect to the option grants under the Option Grant Program, which
eligible persons are to receive option grants, the time or times when such
option grants are to be made, the number of shares to be covered by each such
grant, the status of the granted option as either an Incentive Option or a Non-
Statutory Option, the time or times at which each option is to become
exercisable, the vesting schedule (if any) applicable to the option shares and
the maximum term for which the option is to remain outstanding and (ii) with
respect to stock issuances under the Stock Issuance Program, which eligible
persons are to receive stock issuances, the time or times when such issuances
are to be made, the number of shares to be issued to each Participant, the
vesting schedule (if any) applicable to the issued shares and the consideration
to be paid for such shares.

          C.   The Plan Administrator shall have the absolute discretion either
to grant options in accordance with the Option Grant Program or to effect stock
issuances in accordance with the Stock Issuance Program,

     V.   STOCK SUBJECT TO THE PLAN

          A.   The stock issuable under the Plan shall be shares of authorized
but unissued or reacquired Common Stock- The maximum number of shares of Common
Stock which may be issued over the term of the Plan shall not exceed 1,810,944
shares.

          B.   Shares of Common Stock subject to outstanding options shall be
available for subsequent issuance under the Plan to the extent (i) the options
expire or terminate for any reason prior to exercise in full or (ii) the options
are cancelled in accordance with the cancellation-regrant provisions of Article
Two.  All shares issued under the Plan, whether or not those shares are
subsequently repurchased or cancelled by the Corporation pursuant to its
repurchase or cancellation rights under the Plan, shall reduce on a share-for-
share basis the number of shares of Common Stock available for subsequent
issuance under the Plan.

                                       2.
<PAGE>

          C.   Should any change be made to the Common Stock by reason of any
stock split, stock dividend, recapitalization, combination of shares, exchange
of shares or other change affecting the outstanding Common Stock as a class
without the Corporation's receipt of consideration, appropriate adjustments
shall be made to (i) the maximum number and/or class of securities issuable
under the Plan and (ii) the number and/or class of securities and the exercise
price per share in effect under each outstanding option in order to prevent the
dilution or enlargement of benefits thereunder.  The adjustments determined by
the Plan Administrator shall be final, binding and conclusive.  In no event
shall any such adjustments be made in connection with the conversion of one or
more outstanding shares of the Corporation's preferred stock into shares of
Common Stock.

                                  ARTICLE TWO

                             OPTION GRANT PROGRAM

     I.   OPTION TERMS

     Each option shall be evidenced by one or more documents in the form
approved by the Plan Administrator; provided however, that each -such document
shall comply with the terms specified below.  Each document evidencing an
Incentive Option shall, in addition, be subject to the provisions of the Plan
applicable to such options.

          A.   Exercise Price.

               1.   The exercise price per share shall be fixed by the Plan
Administrator and may be less than, equal to or greater than the Fair Market
Value per share of Common Stock on the option grant date

               2.   The exercise price shall become immediately due upon
exercise of the option and shall, subject to the provisions of Section I of
Article Four and the documents evidencing the option, be payable in cash or
check made payable to the Corporation. Should the Common Stock be registered
under Section 12(g) of the 1934 Act at the time the option is exercised, then
the exercise price may also be paid as follows:

                    (i)  in shares of Common Stock held for the requisite period
necessary to avoid a charge to the Corporation's earnings for financial
reporting purposes and valued at Fair Market Value on the Exercise Date, or

                    (ii) to the extent the option is exercised for vested
shares, through a special sale and remittance procedure pursuant to which the
Optionee shall concurrently provide irrevocable written instructions to (a) a
Corporation-designated brokerage firm to effect the immediate sale of the
purchased shares and remit to the Corporation, out of the sale proceeds
available on the settlement date, sufficient funds to cover the aggregate
exercise price payable for the purchased shares plus all applicable Federal,
state and local income and employment taxes required to be withheld by the
Corporation by reason of such exercise and (b) the Corporation to deliver the
certificates for the purchased shares directly to such brokerage firm in order
to complete the sale.

                                       3.
<PAGE>

     Except to the extent such sale and remittance procedure is utilized,
payment of the exercise price for the purchased shares must be made on the
Exercise Date.

          B.   Exercise and Term of Options.  Each option shall be exercisable
at such time or times, during such period and for such number of shares as shall
be determined by the Plan Administrator and set forth in the documents
evidencing the option.  However, no" option shall have a term in excess of ten
(10) years measured from the option grant date.

          C.   Effect of Termination of Service.

               1.   The following provisions shall govern the exercise of any
options held by the Optionee at the time of cessation of Service or death:

                    (i)   Any option outstanding at the time of the Optionee's
cessation of Service for any reason shall remain exercisable for such period Of
time thereafter as shall be determined by the Plan Administrator and set forth
in the documents evidencing the option, but no such option shall be exercisable
after the expiration of the option term.

                    (ii)  Any option exercisable in whole or in part by the
Optionee at the time of death may be exercised subsequently by the personal
representative of the Optionee's estate or by the person or persons to whom the
option is transferred pursuant to the Optionee's will or in accordance with the
laws of descent and distribution.

                    (iii) During the applicable post-Service exercise period,
the option may not be exercised in the aggregate for more than the number of
vested shares for which the option is exercisable on the date of the Optionee's
cessation of Service. Upon the expiration Of The applicable exercise period or
(if earlier) upon the expiration of the option term, the option shall terminate
and cease to be outstanding for any vested shares for which the option has not
been exercised. However, the option shall immediately upon the, Optionee's
cessation of Service, terminate and cease to be outstanding to the extent the
option is not otherwise at that time exercisable for vested shares.

                    (iv)  Should the Optionee's Service be terminated for
Misconduct, then all outstanding options held by the Optionee shall terminate
immediately and cease to be outstanding.

                    (v)   In the event of an Involuntary Termination following a
Corporate Transaction, the provisions of Section III of this Article Two shall
govern the period for which the outstanding options are to remain exercisable
following the Optionee's cessation of Service and shall supersede any provisions
to the contrary in this section.

               2.   The Plan Administrator shall have the discretion,
exercisable either at the time an option is granted or at any time while the
option remains outstanding, to:

                    (i)   extend the period of time for which the option is to
remain exercisable following the Optionee's cessation of Service from the period
otherwise in effect for that option to such greater period of time as the Plan
Administrator shall deem appropriate, but in no event beyond the expiration of
the option term, and/or

                                       4.
<PAGE>

                    (ii)  permit the option to be exercised, during the
applicable post-Service exercise period, not only with respect to the number of
vested shares of Common Stock for which such option is exercisable at the time
of the Optionee's cessation of Service but also with respect to one or more
additional installments in which the Optionee would have vested under the option
had the Optionee continued in Service.

          D.   Stockholder Rights. The holder of an option shall have no
stockholder rights with respect to the shares subject to the option until such
person shall have exercised the option, paid the exercise price and become a
holder of record of the purchased shares.

          E.   Repurchase Rights. The Plan Administrator shall have the
discretion to grant options which are exercisable for unvested shares of Common
Stock. Should the Optionee cease Service while holding such unvested shares, the
Corporation shall have the right to repurchase, at the exorcist price paid per
share, any or all of those unvested shares. The terms upon which such repurchase
right shall be exercisable (including the period and procedure for exercise and
the appropriate vesting schedule for the purchased shares) shall be established
by the Plan Administrator and act forth in the document evidencing such
repurchase right.

          F.   First Refusal Rights. Until such time as the Common Stock is
first registered under Section 12(g) of the 1934 Act, the Corporation shall
have the right of first refusal with respect to any proposed disposition by the
Optionee (or any successor in interest) of any shares of Common Stock issued
under the Option Grant 'Program. Such right of first refusal shall be
exercisable in accordance with the terms established by the Plan Administrator
and set forth in the document evidencing such right.

          G.   Limited Transferability of Options. During the lifetime of the
Optionee, the option shall be exercisable only by the Optionee and shall not be
assignable or transferable other than by will or by the laws of descent and
distribution following the Optionee's death. However, a Non-Statutory Option may
be assigned in whole or in part during the Optionee's lifetime in accordance
with the. terms of a Qualified Domestic Relations Order. The assigned portion
may only be exercised by the person or persons who acquire a proprietary
interest in the option pursuant to such Qualified Domestic Relations Order. The
terms applicable to the assigned portion shall be the same as those in effect
for the option immediately prior to such assignment and shall be set forth in
such documents issued to the assignee as the Plan Administrator may deem
appropriate.

     II.  INCENTIVE OPTIONS

     The terms specified below shall be applicable to all Incentive Options.
Except as modified by the provisions of this Section II, all the provisions of
Articles One, Two and Four shall be applicable to Incentive Options.  Options
which are specifically designated as Non-Statutory Options when issued under the
Plan shall not be subject to the terms of this Section 11.

          A.   Eligibility. Incentive Options may only be granted to Employees.

          B.   Exercise Price. The exercise price per share shall not be less
than one hundred percent (100%) of the Fair Market Value per share of Common
Stock on the option grant date.

                                       5.
<PAGE>

          C.   Dollar Limitation. The aggregate Fair Market Value of the shares
of Common Stock (determined as of the respective date or dates of grant) for
which one or more options granted to any Employee under the Plan (or any other
option plan of the Corporation or any Parent or Subsidiary) may for the first
time become exercisable as Incentive Options during any one (1) calendar year
shall not exceed the sum of One Hundred Thousand Dollars ($100,000). To the
extent the Employee holds two (2) or more such options which become exercisable
for the first time in the same calendar year, the foregoing limitation on the
exercisability of such options as Incentive Options shall be applied on the
basis of the order in which such options are granted.

          D.   10% Stockholder. If any Employee- to whom an Incentive Option is
granted is a 10% Stockholder, then the exercise price per share shall not be
less than one hundred ten percent (110%) of the Fair Market Value per share of
Common Stock OD the option grant date and the option term shall not exceed five
(5) years measured from the option grant date.

     III. CORPORATE TRANSACTION

          A.   In the event of any Corporate Transaction, each outstanding
option shall automatically accelerate so that each such option shall,
immediately prior to the effective date of the Corporate Transaction, become
fully exercisable for all of the shares of Common Stock at the time subject to
such option and may be exercised for any or all of those shares as fully-vested
shares of Common Stock. However, an outstanding option shall not so accelerate
if and to the extent: (i) such option is, in connection with the Corporate
Transaction, either to be assumed by the successor corporation (or parent
thereof) or to be replaced with a comparable option to purchase shares of the
capital stock of the successor corporation (or parent thereof), (ii) such option
is to be replaced with a cash incentive program of the successor corporation
which preserves the spread existing on the unvested option shares at the time of
the Corporate Transaction and provides for subsequent payout in accordance with
the same vesting schedule applicable to such option or (iii) the acceleration of
such option is subject to other limitations imposed by the Plan Administrator at
the time of the option grant. The determination of option comparability under
clause (i) above shall be made by the Plan Administrator, and its determination
shall be final, binding and conclusive.

          B.   All outstanding repurchase rights shall also terminate
automatically, and the shares of Common Stock subject to those terminated rights
shall immediately vest in full, in the event of any Corporate Transaction,
except to the extent: (i) those repurchase rights are to be assigned to the
successor corporation (or parent thereof) in connection with such Corporate
Transaction or (ii) such accelerated vesting is precluded by other limitations
imposed by the Plan Administrator at the time the repurchase right is issued.

          C.   Immediately following the consummation of the Corporate
Transaction, all outstanding options shall terminate and cease to be
outstanding, except to the extent assumed by the successor corporation (or
parent thereof).

          D.   Each option which is assumed in connection with a Corporate
Transaction shall be appropriately adjusted, immediately after such Corporate
Transaction, to apply to the number and class of securities which would have
been issuable to the Optionee in consummation

                                       6.
<PAGE>

of such Corporate Transaction had the option been exercised immediately prior to
such Corporate Transaction. Appropriate adjustments shall also be made to (i)
the number and class of securities available for issuance under the Plan
following the consummation of such Corporate Transaction and (ii) the exercise
price payable per share under each outstanding option, provided the aggregate
exercise price payable for such securities shall remain the same.

          E.   Any options which are assumed or replaced in the Corporate
Transaction and do not otherwise accelerate at that time shall automatically
accelerate (and any of the Corporation's outstanding repurchase rights which do
not otherwise terminate at the time of the Corporate Transaction shall
automatically terminate and the shares of Common Stock subject to those
terminated rights shall immediately vest in full) in the event the Optionee's
Service should subsequently terminate by reason of an Involuntary Termination
within eighteen (18) months following the effective date of such Corporate
Transaction.  Any options so accelerated shall remain exercisable for fully-
vested shares until the earlier of (i) the expiration of the option term or (ii)
the expiration of the one (1) year period measured from the effective date of
the Involuntary Termination.

          F.   The Plan Administrator shall have the discretion, exercisable
either at the time the option is granted or at any time while the option remains
outstanding, to provide for the automatic acceleration of one or more
outstanding options (and the automatic termination of one or more outstanding
repurchase rights with the immediate vesting of the shares of Common Stock
subject to those rights) upon the occurrence of a Corporate Transaction, whether
or not those options are to be assumed or replaced (or those, repurchase rights
are to be assigned) in the Corporate Transaction.  The Plan Administrator shall
also have the discretion to grant options which do not accelerate (and to
provide for repurchase rights which do not terminate) upon a Corporate
Transaction or an Involuntary Termination following a Corporate Transaction.

          G.   The portion of any Incentive Option accelerated in connection
with a Corporate Transaction or Change in Control shall remain exercisable as an
Incentive Option only to the extent the applicable One Hundred Thousand Dollar
($ 100,000) limitation is not exceeded.  To the extent such dollar limitation is
exceeded, the accelerated portion of such option shall be exercisable as a Non-
Statutory Option under the Federal tax laws.

          H.   The grant of options under the Plan shall in no way affect the
right of the Corporation to adjust, reclassify, reorganize or otherwise change
its capital or business structure or to merge, consolidate, dissolve, liquidate
or sell or transfer all or any part of its business or assets.

     IV.  CANCELLATION AND REGRANT OF OPTIONS

     The Plan Administrator shall have the authority to effect, at any time and
from time to time, with the consent of the affected option holders, the
cancellation of any or all outstanding options under the Option Grant Program
and to grant in substitution new options covering the same or different number
of shares of Common Stock but with an exercise price per share based on the Fair
Market Value per share of Common Stock on the new grant date.

                                       7.
<PAGE>

                                 ARTICLE THREE

                            STOCK ISSUANCE PROGRAM

     I.   STOCK ISSUANCE TERMS

     Shares of Common Stock may be issued under the Stock Issuance Program
through direct and immediate issuances without any intervening option grants.
Each such stock issuance shall be evidenced by a Stock Issuance Agreement which
complies with the terms specified below.

          A.   Purchase Price.

               1.   The purchase price per share shall be fixed by the Plan
Administrator and may be less than, equal to or greater than the Fair Market
Value per share of Common Stock an the stock issuance date.

               2.   Subject to the provisions of Section I of Article Four,
shares of Common Stock may be issued under the Stock Issuance Program for one or
both of the following items of consideration which the Plan Administrator may
deem appropriate in each individual instance:

                    (i)   cash or check made payable to the Corporation, or

                    (ii)  past services rendered to the Corporation (or any
Parent or Subsidiary).

          B.   Vesting Provisions.

               1.   Shares of Common Stock issued under the Stock Issuance
Program may, in the discretion of the Plan Administrator, be fully and
immediately vested upon issuance or may vest in one or more installments over
the Participant's period of Service or upon attainment of specified performance
objectives.  The elements of the vesting schedule applicable.  to any unvested
shares of Common Stock issued under the Stock Issuance Program, namely:

                    (i)   the Service period to be completed by the Participant
or the performance objectives to be attained,

                    (ii)  the number of installments in which the shares are to
vest,

                    (iii) the interval or intervals (if any) which are to lapse
between installments, and

                    (iv)  the effect which death, Permanent Disability or other
event designated by the Plan Administrator is to have upon the vesting schedule,

shall be determined by the Plan Administrator and incorporated into the Stock
Issuance Agreement.

                                       8.
<PAGE>

               2.   Any now, substituted or additional securities or other
property (including money paid other than as a regular cash dividend) which the
Participant may have the right to receive with respect to the Participant's
unvested shares of Common Stock by reason of any stock dividend, stock split,
recapitalization, combination of shares, exchange of shares or other change
affecting the outstanding Common Stock as a class without the Corporation's
receipt of consideration shall be issued subject to (i) the same vesting
requirements applicable to the Participant's unvested shares of Common Stock and
(ii) such escrow arrangements as the Plan Administrator shall deem appropriate.

               3.   The Participant shall have full stockholder rights with
respect to any shares of Common Stock issued to the Participant under the Stock
Issuance Program, whether or not the Participant's interest in those shares is
vested- Accordingly, the Participant shall have the right to vote such shares
and to receive any regular cash dividends paid an such shares

               4.   Should the Participant cease to remain in Service while
holding one or more unvested shares of Common Stock issued under the Stock
Issuance Program or should the performance objectives not be attained with
respect to one or more such unvested shares of Common Stock, then those shares
shall be immediately surrendered to the Corporation for cancellation, and the
Participant shall have no further stockholder rights with respect to those
shares. To the extent the surrendered shares were previously issued to the
Participant for consideration paid in cash or cash equivalent (including the
Participant's purchase-money indebtedness), the Corporation shall repay to the
Participant the cash consideration paid for the surrendered shares and shall
cancel the unpaid principal balance of any outstanding purchase-money note of
the Participant attributable to the surrendered shares.

               5.   The Plan Administrator may in its discretion waive the
surrender and cancellation of one or more unvested shares of Common Stock (or
other assets attributable thereto) which would otherwise occur upon the -
cessation of the Participant's Service or the non-attainment of the performance
objectives applicable to such shares. Such waiver shall result in the immediate
vesting of the Participant's interest in the shares of Common Stock as to which
the waiver applies. Such waiver may be effected at any time, whether before or
after the Participant's cessation of Service or the attainment or non-attainment
of the applicable performance objectives.

          C.   First Refusal Rights.  Until such time as the Common Stock is
first registered under Section 12(g) of the 1934 Act, the Corporation shall have
the right of first refusal with respect to any proposed disposition by the
Participant (or any successor in interest) of any shares of Common Stock issued
under the Stock Issuance Program, Such right of first refusal shall be
exercisable in accordance with the terms established by the Plan Administrator
and set forth in the document evidencing such right.

     II.  CORPORATE TRANSACTION

          A.   All of the outstanding cancellation rights under the Stock
Issuance Program shall terminate automatically, and all the shares of Common
Stock subject to those terminated rights shall immediately vest in full, in the
event of any Corporate Transaction.

                                       9.
<PAGE>

except to the extent (i) those cancellation rights are assigned to the successor
corporation (or parent thereof) in connection with such Corporate Transaction or
(ii) such accelerated vesting is precluded by other limitations imposed in the
Stock Issuance Agreement.

          B.   Any cancellation rights that are assigned in the Corporate
Transaction shall automatically terminate, and the shares of Common Stock
subject to those terminated rights shall immediately vest in full, in the event
the Participant's Service should subsequently terminate by reason of an
Involuntary Termination within eighteen (18) months following the effective date
of such Corporate Transaction.

          C.   The Plan Administrator shall have the discretion, exercisable
either at the time the unvested shares are issued or at any time while the
Corporation's cancellation right remains outstanding, to provide for the
automatic termination of one or more outstanding cancellation rights, and the
immediate vesting of the shares of Common Stock subject to those rights, upon
the occurrence of a Corporate Transaction, whether or not those cancellation
rights are assigned in connection with the Corporate Transaction.

     III. SHARE ESCROW/LEGENDS

     Unvested shares may, in the Plan Administrator's discretion, be held in
escrow by the Corporation, until the Participant's interest in such shares vests
or may be issued directly to the Participant with restrictive legends on the
certificates evidencing those unvested shares.

                                 ARTICLE FOUR

                                 MISCELLANEOUS

     I.   FINANCING

          A.   The Plan Administrator may permit any Optionee or Participant to
pay the option exercise price or the purchase price for shares issued under the
Plan by delivering a promissory note payable in one or more installments. The
terms of any such promissory note (including the interest rate and the terms of
repayment) shall be established by the Man Administrator in its sole discretion-
Promissory notes may be authorized with or without security or collateral. In
all events, the maximum credit available to the Optionee or Participant may not
exceed the sum of (i) the aggregate option exercise price or purchase price
payable for the purchased shares plus (ii) any Federal, state and local income
and employment tax liability incurred by the Optionee or the Participant in
connection with the option exercise or share purchase.

          B.   The Plan Administrator may, in its discretion, determine that one
or more such promissory notes shall be subject to forgiveness by the Corporation
in whole or in part upon such term as the Plan Administrator may deem
appropriate.

     II.  EFFECTIVE DATE AND TERM OF THE PLAN

          A.   The Plan shall become effective when adopted by the Board, but no
option granted under the Plan may be exercised, and no shares shall be issued
under the Plan, until the

                                      10.
<PAGE>

Plan is approved by the Corporation's stockholders. If such stockholder approval
is not obtained within twelve (12) months after the date of the Board's adoption
of the Plan, then all options previously granted under the Plan shall terminate
and cease to be outstanding, and no further options shall be granted and no
shares shall be issued under the Plan. Subject to such limitation, the Plan
Administrator may grant options and issue shares under the Plan at any time
after the effective date of the Plan and before the date fixed herein for
termination of the Plan.

          B.   The Plan shall terminate upon the earliest of (i) the expiration
of the ten (10)-year period measured from the date the Plan is adopted by the
Board, (ii) the date on which all shares available for issuance under the Plan
shall have been issued pursuant to the exercise of options or the issuance of
shares (whether vested or unvested) under the Plan or (iii) the termination of
all outstanding options in connection with a Corporate Transaction.  Upon such
Plan termination, all options and unvested stock issuances outstanding under the
Plan shall continue to have full force and effect in accordance with the
provisions of the documents evidencing such options or issuances.

     III. AMENDMENT OF THE PLAN

          A.   The Board shall have complete and exclusive power and authority
to amend or modify the Plan in any or all respects. However, no such amendment
or modification shall adversely affect any rights and obligations with respect
to options or unvested stock issuances at the time outstanding under the Plan,
unless the Optionee or the Participant consents to such amendment or
modification. In addition, the Board shall not, without the approval of the
Corporation's stockholders, (i) increase the maximum number of shares issuable
under the Plan, except for permissible adjustments in the event of Certain
changes in the Corporation's capitalization, (ii) materially modify the
eligibility requirements for Plan. participation or (iii) materially increase
the benefits accruing to Plan participants.

          B.   Options to purchase shares of Common Stock may be granted under
the Plan and shares of Common Stock may be issued under the Plan that are in
each instance in excess of the number of shares then available for issuance
under the Plan, provided any excess shares actually issued under the Plan are
held in escrow until there is obtained stockholder approval of an amendment
sufficiently increasing the number of shares of Common Stock available for
issuance under the Plan.  If such stockholder approval is not obtained within
twelve (12) months after the date the first such excess grants or issuances are
made, then (i) any unexercised options granted on the basis of such excess
shares shall terminate and cease to be outstanding and (ii) the Corporation
shall promptly refund to the Optionees and the Participants the exercise or
purchase price paid for any excess shares issued under the Plan and held in
escrow, together with interest (at the applicable Short Term Federal Rate) for
the period the shares were held in escrow, and such shares shall thereupon be
automatically cancelled and cease to be outstanding.

     IV.  USE OF PROCEEDS

     Any cash proceeds received by the Corporation from the sale of shares of
Common Stock under the Plan shall be used for general corporate purposes.

                                      11.
<PAGE>

     V.   WITHHOLDING

     The Corporation's obligation to deliver shares of Common Stock upon the
exercise of any options or upon the issuance or vesting of such shares issued
under the Plan shall be subject to the satisfaction of all applicable Federal,
state and local income and employment tax withholding requirements.

     VI.  REGULATORY APPROVALS

     The implementation of the Plan, the granting of any option under the Plan
and the issuance of any shares of Common Stock- (i) upon the exercise Of any
option or (ii) under the Stock Issuance Program shall be subject to the
Corporation's procurement of all approvals and permits required by regulatory
authorities having jurisdiction over the Plan, the options granted under it and
the shares of Common Stock issued pursuant to it.

     VII. NO EMPLOYMENT OR SERVICE RIGHTS

     Nothing in the Plan shall confer upon the Optionee or the Participant 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 such person) or of the Optionee or
the Participant, which rights are hereby expressly reserved by each, to
terminate such person's Service at any time for any reason, with or without
cause.

                                      12.
<PAGE>

                                   APPENDIX

     The following definitions shall be in effect under the Plan:

     A.   Board shall mean the Corporation's Board of Directors.

     B.   Code shall mean the Internal Revenue Code of 1986, as amended.

     C.   Committee shall mean a committee of two (2) or more Board members
appointed by the Board to exercise one or more administrative functions under
the Plan.

     D.   Common Stock shall mean the Corporation's common stock.

     E.   Corporate Transaction shall mean either of the following
stockholder approved transactions to which the Corporation is a party:

          (i) a merger or consolidation in which securities possessing more than
fifty percent (50%) of the total combined voting power of the Corporation's
outstanding securities are transferred to a person or persons different from the
persons holding those securities immediately prior to such transaction, or

          (ii) the sale, transfer or other disposition of all or substantially
all of the Corporation's assets in complete liquidation or dissolution of the
Corporation.

     F.   Corporation shall mean Progressive System Technologies, Inc., a
Texas corporation, and any corporate successor to all or substantially all of
the assets or voting stock of Progressive System Technologies, Inc. which shall
by appropriate action adopt the Plan.

     G.   Domestic Relations Order shall mean any judgment, decree or order
(including approval of a property settlement agreement) which provides or
otherwise conveys, pursuant to applicable State domestic relations laws
(including community property laws), marital property rights to any spouse or
former spouse of the Optionee.

     H.   Employee shall mean an individual who is in the employ of the
Corporation (or any Parent or Subsidiary), subject to the control and direction
of the employer entity as to both the Work to be performed and the manner and
method of performance.

     I.   Exercise Date shall mean the date on which the Corporation shall
have received written notice of the option exercise.

     J.   Fair Market Value per share of Common Stock on any relevant date
shall be determined in accordance with the following provisions:

          (i) If the Common Stock is at the time traded on the Nasdaq National
Market, then the Fair Market Value shall be the closing selling price per share
of Common Stock on the date in question, as such price is reported by the
National Association of Securities Dealers on the Nasdaq National Market or any
successor system.  If there is no closing selling

                                     A-1.
<PAGE>

price for the Common Stock an the date in question, then the Fair Market Value
shall be the closing selling price on the last preceding date for which such
quotation exists.

          (ii)  If the Common Stock is at the time listed on any Stock Exchange,
then the Fair Market Value shall be the closing selling price per share of
Common Stock on the date in question on the Stock Exchange determined by the
Plan Administrator to be the primary market for the Common Stock, as such price
is officially quoted in the composite tape of transactions on such exchange. If
there is no closing selling price for the Common Stock on the date in question,
then the Fair Market Value shall be the closing selling price on the last
preceding date for which such quotation exists.

          (iii) If the Common Stock is at the time neither listed on any Stock
Exchange nor traded on the Nasdaq National Market, then the Fair Market Value
shall be determined by the Plan Administrator after taking into account such
factors as the Plan Administrator shall deem appropriate.

     K.   Incentive Option shall mean an option which satisfies the requirements
of Code Section 422

     L.   Involuntary Termination shall mean the termination of the Service
of any individual which occurs by reason of.

          (i)   such individual's involuntary dismissal or discharge by the
Corporation for reasons other than Misconduct, or

          (ii)  such individual's voluntary resignation following (A) a change
in his or her position with the Corporation which materially reduces his or her
level of responsibility, (B) a reduction in his or her level of compensation
(including base salary. fringe benefits and participation in corporate-
performance based bonus or incentive programs) by more than fifteen percent
(15%) or (C) a relocation of such individual's place of employment by more than
fifty (50) miles, provided and only if such change, reduction or relocation is
effected by the Corporation without the individual's consent.

     M.   Misconduct shall mean the commission of any act of fraud, embezzlement
or dishonesty by the Optionee or Participant, any unauthorized use or disclosure
by such person of confidential information or trade secrets of the Corporation
(or any Parent or Subsidiary), or any other intentional misconduct by such
person adversely affecting the business or affairs of the Corporation (or any
Parent or Subsidiary) in a material manner. The foregoing definition shall not
be deemed to be inclusive of all the acts or omissions which the Corporation (or
any Parent or Subsidiary) may consider as grounds for the dismissal or discharge
of any Optionee, Participant or other person in the Service of the Corporation
(or any Parent or Subsidiary).

     N.   1934 Act shall mean the Securities Exchange Act of 1934, as amended.

     O.   Non-Statutory Option shall mean an option not intended to satisfy the
requirements of Code Section 422.

                                     A-2.
<PAGE>

     P.   Option Grant Program shall mean the option grant program in effect
under the Plan.

     Q.   Optionee shall mean any person to whom an option is granted under
the Option Grant Program.

     R.   Parent shall mean any corporation (other than the Corporation) in an
unbroken chain of corporations ending with the Corporation, provided each
corporation in the unbroken chain (other than the Corporation) owns, at the time
of the determination, stock possessing fifty percent (50%) or more of the total
combined voting pourer of all classes of stock in one of the other corporations
in such chain.

     S.   Participant shall mean any person who is issued shares of Common Stock
under the Stock Issuance Program.

     T.   Permanent Disability shall mean the inability of the Optionee or the
Participant to engage in any substantial gainful activity by reason of any
medically determinable physical or mental impairment expected to result in death
or to be of continuous duration of twelve (12) months or more.

     U.   Plan shall mean the Corporation's 1995 Stock Option/Stock Issuance
Plan, as set forth in this document.

     V.   Plan Administrator shall mean either the Board or the Committee, to
the extent the Committee is at the time responsible for the administration of
the Plan.

     W.   Qualified Domestic Relations Order shall mean a Domestic Relations
Order which substantially complies with the requirements of Code Section 414(p).
The Plan Administrator shall have the sole discretion to determine whether a
Domestic Relations Order is a Qualified Domestic Relations Order.

     X.   Service shall mean the provision of services to the Corporation (or
any Parent or Subsidiary) by a person in the capacity of an Employee, a non-
employee member of the board of directors or a consultant or independent
advisor, except to the extent otherwise specifically provided in the documents
evidencing the option grant or stock issuance.

     Y.   Stock Exchange shall mean either the American Stock Exchange or the
New York Stock Exchange.

     Z.   Stock Issuance Agreement shall mean the agreement entered into by the
Corporation and the Participant at the time of issuance of shares of Common
Stock under the Stock Issuance Program.

     AA.  Stock Issuance Program shall mean the stock issuance program in effect
under the Plan

     BB.  Subsidiary shall mean any corporation (other than the Corporation) in
an unbroken chain of corporations beginning with the Corporation, provided each
corporation (other

                                     A-3.
<PAGE>

than the last corporation) in the unbroken chain owns, at the time of the
determination, stock possessing fifty percent (50%) or more of the total
combined voting power of all classes of stock in one of the other corporations
in such chain.

     CC.  10% Stockholder shall mean the owner of stock (as determined under
Code Section 424(d)) possessing more than ten percent (10%) of the total
combined voting power of all classes of stock of the Corporation (or any Parent
or Subsidiary).

                                     A-4.

<PAGE>

                                                                    EXHIBIT 99.5

                         PALO ALTO TECHNOLOGIES, INC.

                                1997 STOCK PLAN

                            STOCK OPTION AGREEMENT

     Unless otherwise defined herein, the terms defined in the Plan shall have
the same defined meanings in this Option Agreement.

I.   NOTICE OF STOCK OPTION GRANT

     _______________

     _______________

     _______________

     The undersigned Optionee has been granted an Option to purchase Common
Stock of the Company, subject to the terms and conditions of the Plan and this
Option Agreement, as follows:

     Date of Grant                           ______________________________

     Vesting Commencement Date               ______________________________

     Exercise Price per Share                ______________________________

     Total Number of Shares Granted          ______________________________

     Total Exercise Price                    ______________________________

     Type of Option                          ________  Incentive Stock Option

                                             ________  Nonstatutory Stock Option

                                             ______________________________

     Term/Expiration Date

     Vesting Schedule:

     This Option shall be exercisable, in whole or in part, according to the
following vesting schedule:

     The total number of Shares subject to the Option shall become exercisable
and vested in full as of the Vesting Commencement Date.

     Termination Period:
<PAGE>

     This Option shall be exercisable for three (3) months after Optionee ceases
to be a Service Provider. Upon Optionee's death or disability, this Option may
be exercised for such longer period as provided in the Plan. In no event may
Optionee exercise this Option after the Term/Expiration Date as provided above.

II.  AGREEMENT

     1.   Grant of Option.  The Plan Administrator of the Company hereby grants
to the Optionee named in the Notice of Grant (the "Optionee"), an option (the
"Option") to purchase the number of Shares set forth in the Notice of Grant, at
the exercise price per Share set forth in the Notice of Grant (the "Exercise
Price"), and subject to the terms and conditions of the Plan, which is
incorporated herein by reference.  Subject to Section 14(c) of the Plan, in the
event of a conflict between the terms and conditions of the Plan and this Option
Agreement, the terms and conditions of the Plan shall prevail.

     If designated in the Notice of Grant as an Incentive Stock Option ("ISO"),
this Option is intended to qualify as an Incentive Stock Option as defined in
Section 422 of the Code.  Nevertheless, to the extent that it exceeds the
$100,000 rule of Code Section 422(d), this Option shall be treated as a
Nonstatutory Stock Option ("NSO").

     2.   Exercise of Option.

          (a)  Right to Exercise. This Option shall be exercisable during its
term in accordance with the Vesting Schedule set out in the Notice of Grant and
with the applicable provisions of the Plan and this Option Agreement.

          (b)  Method of Exercise. This Option shall be exercisable by delivery
of an exercise notice in the form attached as Exhibit A (the "Exercise Notice")
which shall state the election to exercise the Option, the number of Shares with
respect to which the Option is being exercised, and such other representations
and agreements as may be required by the Company. The Exercise Notice shall be
accompanied by payment of the aggregate Exercise Price as to all Exercised
Shares. This Option shall be deemed to be exercised upon receipt by the Company
of such fully executed Exercise Notice accompanied by the aggregate Exercise
Price.

               No Shares shall be issued pursuant to the exercise of an Option
unless such issuance and such exercise complies with Applicable laws. Assuming
such compliance, for income tax purposes, the Shares shall be considered
transferred to the Optionee on the date on which the Option is exercised with
respect to such Shares.

     3.   Optionee's Representations.  In the event the Shares have not been
registered under the Securities Act of 1933, as amended, at the time this Option
is exercised, the Optionee shall, if required by the Company, concurrently with
the exercise of all or any portion of this Option, deliver to the Company his or
her Investment Representation Statement in the form attached hereto as Exhibit
B, and shall read the applicable rules of the Commissioner of Corporations
attached to such Investment Representation Statement.

     4.   Lock-Up Period.  Optionee hereby agrees, that, if so requested by the
Company or any representative of the underwriters (the "Managing Underwriter")
in connection with any

                                       2.
<PAGE>

registration of the offering of any securities of the Company under the
Securities Act, Optionee shall not sell or otherwise transfer any Shares or
other securities of the Company during the 180-day period (or such other period
as may be requested in writing by the Managing Underwriter and agreed to in
writing by the Company) (the "Market Standoff Period") following the effective
date of a registration statement of the Company filed under the Securities Act.
Such restriction shall apply only to the first registration statement of the
Company to become effective under the Securities Act that includes securities to
be sold on behalf of the Company to the public in an underwritten public
offering under the Securities Act. The Company may impose stop-transfer
instructions with respect to securities subject to the foregoing restrictions
until the end of such Market Standoff Period.

     5.   Method of Payment.  Payment of the aggregate Exercise Price shall be
by any of the following, or a combination thereof, at the election of the
Optionee:

          (a)  Cash or check;

          (b)  Consideration received by the Company under a formal cashless
exercise program adopted by the Company in connection with the Plan; or

          (c)  Surrender of other Shares which, (I) in the case of Shares
acquired upon exercise of an option, have been owned by the Optionee for more
than six (6) months on the date of surrender, and (ii) have a Fair Market Value
on the date of surrender equal to the aggregate Exercise Price of the Exercised
Shares.

     6.   Restrictions on Exercise.  This Option may not be exercised until such
time as the Plan has been approved by the shareholders of the Company, of if the
issuance of such Shares upon such exercise or the method of payment of
consideration for such shares would constitute a violation of any Applicable
Law.

     7.   Non-Transferability of Option.  This Option may not be transferred in
any manner otherwise than by will or by the laws of descent or distribution and
may be exercised during the lifetime of Optionee only by Optionee.  The terms of
the Plan and this Option Agreement shall be binding upon the executors,
administrators, heirs, successors and assigns of the Optionee.

     8.   Term of Option.  This Option may be exercised only within the term set
out in the Notice of Grant, and may be exercised during such term only in
accordance with the Plan and the terms of this Option.

     9.   Tax Consequences.  Set forth is a brief summary as of the date of this
Option of some of the federal tax consequences of exercise of this Option and
disposition of the Shares.  THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX
LAWS AND REGULATIONS ARE SUBJECT TO CHANGE.  THE OPTIONEE SHOULD CONSULT A TAX
ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

          (a)  Exercise of ISO. If this Option qualifies as an ISO, there will
be no regular federal income tax liability upon the exercise of the Option,
although the excess, if any, of the Fair Market Value of the Shares on the date
of exercise over the Exercise Price will be

                                       3.
<PAGE>

treated as an adjustment to the alternative minimum tax for federal tax purposes
may subject the Optionee to the alternative minimum tax in the year of exercise.

          (b)  Exercise of ISO Following Disability. If the Optionee ceases to
be an Employee as a result of a disability that is not a total and permanent
disability as defined in Section 22(e)(3) of the Code, to the extent permitted
on the date of termination, the Optionee must exercise an ISO within three
months of such termination for the ISO to be qualified as an ISO.

          (c)  Exercise of Nonstatutory Stock Option. There may be a regular
federal income tax liability upon the exercise of a Nonstatutory Stock Option.
The Optionee will be treated as having received compensation income (taxable at
ordinary income tax rates) equal to the excess, if any, of the Fair Market Value
of the Shares on the date of exercise over the Exercise Price. If Optionee is an
Employee or a former Employee, the Company will be required to withhold from
Optionee's compensation or collect from Optionee and pay to the applicable
taxing authorities an amount in cash equal to a percentage of this compensation
income at the time of exercise, and may refuse to honor the exercise and refuse
to deliver Shares if such withholding amounts are not delivered at the time of
exercise.

          (d)  Disposition of Shares. In the case of an NSO, if Shares are held
for at least one year, any gain realized on disposition of the Shares will be
treated as long-term capital gain for federal income tax purposes.. In the case
of an ISO, if Shares transferred pursuant to the Option are held for at least
one year after exercise and of at least two years after the Date of Grant, any
gain realized on disposition of the Shares will also be treated as long-term
capital gain for federal income tax purposes. If Shares purchased under an ISO
are disposed of within one year after exercise or two years after the Date of
Grant, any gain realized on such disposition will be treated as compensation
income (taxable at ordinary income rates) to the extent of the difference
between the Exercise Price and the lesser of (1) the Fair Market Value of the
Shares on the date of exercise, or (2) the sale price of the Shares. Any
additional gain will be taxed as capital gain, short-term or long-term depending
on the period that the ISO Shares were held.

          (e)  Notice of Disqualifying Disposition of ISO Shares.  If the Option
granted to Optionee herein is an ISO, and if Optionee sells or otherwise
disposes of any of the Shares acquired pursuant to the ISO on or before the
later of (1) the date tow years after the Date of Grant, or (2) the date one
year after the date of exercise, the Optionee shall immediately notify the
Company in writing of such disposition.  Optionee agrees that Optionee may be
subject to income tax withholding by the Company on the compensation income
recognized by the Optionee.

     10.  Entire Agreement; Governing Law.  The Plan is incorporated herein by
reference.  The Plan and this Option Agreement constitute the entire agreement
of the parties with respect to the subject matter hereof and supersede in their
entirety all prior undertakings and agreements of the Company and Optionee with
respect to the subject matter hereof, and may not be modified adversely to the
Optionee's interest except by means of a writing signed by the company and
Optionee.  This agreement is governed by the internal substantive laws but not
the choice of law rules of California.

                                       4.
<PAGE>

     11.  No Guarantee of Continued Service.  OPTIONEE ACKNOWLEDGES AND AGREES
THAT THE VESTING OS SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED
ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (NOT
THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR ACQUIRING SHARES
HEREUNDER).  OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE
TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO
NOT CONSTITUTE AND EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A
SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL
NOT INTERFERE IN ANY WAY WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO
TERMINATE OPTIONEE'S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR
WITHOUT CAUSE.


                 [Remainder of Page Intentionally Left Blank.]

                                       5.
<PAGE>

     Optionee acknowledges receipt of a copy of the Plan and represents that he
or she is familiar with the terms and provisions thereof, and hereby accepts
this Option subject to all of the terms and provisions thereof.  Optionee has
reviewed the Plan and this Option in their entirety, has had an opportunity to
obtain the advice of counsel prior to executing this Option and fully
understands all provisions of the Option.  Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the
Administrator upon any questions arising under the Plan or this Option.
Optionee further agrees to notify the Company upon any change in the residence
address indicated below.

Optionee:                               Palo Alto Technologies, Inc.


________________________________        _______________________________
Signature                               By


________________________________        _______________________________
                                        Title

<PAGE>

                                                                   EXHIBIT 99.6

                     PROGRESSIVE SYSTEM TECHNOLOGIES, INC.

                        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 Progressive System Technologies, Inc.
(the "Corporation"):

          Optionee:                      ________________________________

          Grant Date:                    ________________________________

          Vesting Commencement Date:     ________________________________

          Exercise Price:                ________________________________

          Number of Option Shares:       ________________________________

          Expiration Date:               ________________________________

          Type of Option:                _____ Incentive Stock Option

                                         _____ Non-Statutory Stock Option

          Date Exercisable:              ________________________________


     Vesting Schedule: The Option Shares shall be unvested and subject to
repurchase by the Corporation at the Exercise Price paid per share. Optionee
shall acquire a vested interest in, and the Corporation's repurchase right shall
accordingly lapse with respect to, the Option shares in five (5) equal
successive annual installments upon Optionee's completion of each year of
Service measured from the Vesting Commencement Date. 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 Progressive System Technologies, Inc. 1995
Stock Option/Stock Issuance 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
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.

                                       1.
<PAGE>

     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.

________________, 199__
       Date

                                      PROGRESSIVE SYSTEM TECHNOLOGIES, INC.

                                      By:_______________________________________

                                      Title:____________________________________


                                      __________________________________________
                                      ___________, Optionee

                                      Address:     _____________________________

                                                   _____________________________


ATTACHMENTS:

Exhibit A - Stock Option Agreement
Exhibit B - Stock Purchase Agreement
Exhibit C - 1995 Stock Option/Stock Issuance Plan

                                       2.
<PAGE>

                                   EXHIBIT A

                     PROGRESSIVE SYSTEM TECHNOLOGIES, INC.
                            STOCK OPTION AGREEMENT

                                   Recitals

     A.   The Board has adopted the Plan for the purpose of retaining the
services of selected Employees, non-employee members of the Board or the board
of directors of any Parent or Subsidiary and consultants and other independent
advisors who provide services to the Corporation (or any Parent or Subsidiary).

     B.   Optionee is to render valuable services to the Corporation (or a
Parent or Subsidiary), and this Agreement is executed pursuant to, and is
intended to carry out the purposes of the Plan in connection with the
Corporation's grant of an option to Optionee.

     C.   All capitalized terms in this Agreement shall have the meaning
assigned to them in the attached Appendix.

     Now, Therefore, it is hereby agreed as follows:

     1.   Grant of Option.  The Corporation hereby grants to Optionee, as of the
Grant Date, an option to purchase up to the number of Option Shares specified in
the Grant Notice.  The Option Shares shall be purchasable from time to time
during the option term specified in Paragraph 2 at the Exercise Price.

     2.   Option Term.  This option shall have a term of ten (10) years measured
from the Grant Date and shall accordingly expire at the close of business on the
Expiration Date, unless sooner terminated in accordance with Paragraph 5, 6 or
17.

     3.   Limited Transferability.  This option shall be neither transferable
nor assignable by Optionee other than by will or by the laws of descent and
distribution following Optionee's death and may be exercised, during Optionee's
lifetime, only by Optionee.  However, if this option is designated a Non-
Statutory Option in the Grant Notice, then this option may also be assigned in
whole or in part during Optionee's lifetime in accordance with the terms of a
Qualified Domestic Relations Order.  The assigned portion shall be exercisable
only by the person or persons who acquire a proprietary interest in the option
pursuant to such Qualified Domestic Relations Order.  The terms applicable to
the assigned portion shall be the same as those in effect for this option
immediately prior to such assignment and shall be set forth in such documents
issued to the assignee as the Plan Administrator may deem appropriate.

     4.   Exercisability/Vesting.

          (a)  This option shall be immediately exercisable for any or all of
the Option Shares, whether or not the Option Shares are vested in accordance
with the Vesting Schedule, and shall remain so exercisable until the Expiration
Date or sooner termination of the option term under Paragraph 5, 6 or 17. Any
unvested Option Shares purchased under this option shall be

                                       3.
<PAGE>

subject to repurchase by the Corporation, at the Exercise Price paid per share,
upon Optionee's cessation of Service prior to vesting in those Option Shares.

          (b)  Optionee shall, in accordance with the Vesting Schedule, vest in
the Option Shares in one or more installments over his or her period of Service.
Vesting in the Option Shares may be accelerated pursuant to the provisions of
Paragraph 6. In no event, however, shall any additional Option Shares vest
following Optionee's cessation of Service.

     5.   Cessation of Service.  The option term specified in Paragraph 2 shall
terminate (and this option shall cease to be outstanding) prior to the
Expiration Date should any of the following provisions become applicable:

               (i)    Should Optionee cease to remain in Service for any reason
(other than death, Permanent Disability or Misconduct) while this option is
outstanding, then Optionee shall have a period of three (3) months (commencing
with the date of such cessation of Service) during which to exercise this
option, but in no event shall this option be exercisable at any time after the
Expiration Date.

               (ii)   Should Optionee die while this option is outstanding, then
the personal representative of Optionee's estate or the person or person to whom
the option is transferred pursuant to Optionee's will or in accordance with the
laws of descent and distribution shall have the right to exercise this option.
Such right shall lapse and this option shall cease to be outstanding upon the
earlier of (A) the expiration of the twelve (12)-month period measured from the
date of Optionee's death or (B) the Expiration Date.

               (iii)  Should Optionee cease Service by reason of Permanent
Disability while this option is outstanding, then Optionee shall have a period
of twelve (12) months (commencing with the date of such cessation of Service)
during which to exercise this option.  In no event shall this option be
exercisable at any rime after the Expiration Date.

               (iv)   Should Optionee's Service be terminated for Misconduct,
then this option shall terminate immediately and cease to remain outstanding.

               (v)    During the limited post-Service exercise period, this
option may not be exercised in the aggregate for more than the number of Option
Shares in which Optionee is, at the time of Optionee's cessation of Service,
vested in accordance with the Vesting Schedule. Upon the expiration of such
limited exercise period or (if earlier) upon the Expiration Date, this option
shall terminate and cease to be outstanding for any vested Option Shares for
which the option has not been exercised. To the extent Optionee is not vested in
the Option Shares at the time of Optionee's cessation of Service, this option
shall immediately terminate and cease to be outstanding with respect to those
shares.

               (vi)   In the event of a Corporate Transaction, the provisions of
Paragraph 6 shall govern the period for which this option is to remain
exercisable following Optionee's cessation of Service and shall supersede any
provisions to the contrary in this paragraph.

                                       4.
<PAGE>

     6.   Special Termination of Option.

          (a)  All the Option Shares subject to this option at the time of a
Corporate Transaction but not otherwise vested shall automatically vest and the
Corporation's repurchase rights with respect to those Option Shares shall
immediately terminate so that this option shall, immediately prior to the
effective date of the Corporate Transaction, become exercisable for all of the
Option Shares as fully-vested shares of common Stock and may be exercised for
any or all of those Option Shares. No such accelerated vesting of the Option
Shares, however, shall occur if and to the extent: (i) this option is, in
connection with the Corporate Transaction, either to be assumed by the successor
corporation (or parent thereof) or to be replaced with a comparable option to
purchase shares of the capital stock of the successor corporation (or parent
thereof), and the Corporation's repurchase rights with respect to the unvested
Option Shares are to be assigned to such successor corporation (or parent
thereof) or (ii) this option is to be replaced with a cash incentive program of
the successor corporation which preserves the spread existing on the unvested
Option Shares at the time of the Corporate Transaction (the excess of the Fair
Market Value of those Option Shares over the Exercise Price payable for such
shares) and provides for subsequent payout in accordance with the Vesting
Schedule.

          (b)  Immediately following the Corporate Transaction, this option
shall terminate and cease to be outstanding, except to the extent assumed by the
successor corporation (or parent thereof) in connection with the Corporate
Transaction.

          (c)  If this option is assumed in connection with a Corporate
Transaction, then this option shall be appropriately adjusted, immediately after
such Corporate Transaction, to apply to the number and class of securities which
would have been issuable to Optionee in consummation of such Corporate
Transaction had the option been exercised immediately prior to such Corporate
Transaction, and appropriate adjustments shall also be made to the Exercise
Price, provided the aggregate Exercise Price shall remain the same.
       --------

          (d)  Should there occur an Involuntary Termination of Optionee's
Service within eighteen (18) months following a Corporate Transaction in which
this option is assumed or replaced and the Corporation's repurchase rights with
respect to the unvested Option Shares are assigned, all the Option Shares at the
time subject to this option but not otherwise vested shall automatically vest
and the Corporation's repurchase rights with respect to those Option Shares
shall terminate so that this option shall immediately become exercisable for all
those Option Shares as fully-vested shares of Common Stock and may be exercised
for any or all of those vested Option Shares at any time prior to the earlier of
(i) the Expiration Date or (ii) the expiration of the one (1)-year period
measured from the date of such Involuntary Termination.

          (e)  This Agreement shall not in any way affect the right of the
Corporation to adjust, reclassify, reorganize or otherwise change its capital or
business structure or to merge, consolidate, dissolve, liquidate or sell or
transfer all or any part of its business or assets.

     7.   Adjustment in Option Shares. Should any change be made to the Common
Stock by reason of any stock split, stock dividend, recapitalization,
combination of shares, exchange of shares or other change affecting the
outstanding Common Stock as a class without the Corporation's receipt of
consideration, appropriate adjustments shall be made to (i) the total

                                       5.
<PAGE>

number and/or class of securities subject to this option and (ii) the Exercise
Price in order to reflect such change and thereby preclude a dilution or
enlargement of benefits hereunder.

     8.   Stockholder Rights.  The holder of this option shall not have any
stockholder rights with respect to the Option Shares until such person shall
have exercised the option, paid the Exercise Price and become a holder of record
of the purchased shares.

     9.   Manner of Exercising Option.

          (a)  In order to exercise this option with respect to all or any part
of the Option Shares for which this option is at the time exercisable, Optionee
(or any other person or persons exercising the option) must take the following
actions:

               (i)   Execute and deliver to the Corporation a Purchase Agreement
for the Option Shares for which the option is exercised.

               (ii)  Pay the aggregate Exercise Price for the purchased shares
in one or more of the following forms:

                     (a)  cash or check made payable to the Corporation; or

                     (b)  a promissory note payable to the Corporation, but only
to the extent authorized by the Plan Administrator in accordance with Paragraph
14.

     Should the Common Stock be registered under Section 12(g) of the 1934 Act
at the time the option is exercised, then the Exercise Price may also be paid as
follows:

                     (c)  in shares of Common Stock held by Optionee (or any
other person or persons exercising the option) for the requisite period
necessary to avoid a charge to the Corporation's earnings for financial
reporting purposes and valued at Fair Market Value on the Exercise Date; or

                     (d)  to the extent the option is exercised for vested
Option Shares, through a special sale and remittance procedure pursuant to which
Optionee (or any other person or persons exercising the option) shall
concurrently provide irrevocable written instructions (I) to a Corporation-
designated brokerage firm to effect the immediate sale of the purchased shares
and remit to the Corporation, out of the sale proceeds available on the
settlement date, sufficient funds to cover the aggregate Exercise Price payable
for the purchased shares plus all applicable Federal, state and local income and
employment taxes required to be withheld by the Corporation by reason of such
exercise and (II) to the Corporation to deliver the certificates for the
purchased shares directly to such brokerage firm in order to complete the sale.

               Except to the extent the sale and remittance procedure is
utilized in connection with the option exercise, payment of the Exercise Price
must accompany the Purchase Agreement delivered to the Corporation in connection
with the option exercise.

                                       6.
<PAGE>

               (iii)  Furnish to the Corporation appropriate documentation that
the person or persons exercising the option (if other than Optionee) have the
right to exercise this option.

               (iv)   Execute and deliver to the Corporation such written
representations as may be requested by the Corporation in order for it to comply
with the applicable requirements of Federal and state securities laws.

               (v)    Make appropriate arrangements with the Corporation (or
Parent or Subsidiary employing or retaining Optionee) for the satisfaction of
all Federal, state and local' income and employment tax withholding requirements
applicable to the option exercise.

          (b)  As soon as practical after the Exercise Date, the Corporation
shall i, sue to or on behalf of Optionee (or any other person or persons
exercising this option) a certificate for the purchased Option Shares, with the
appropriate legends affixed thereto. To the extent any such Option Shares are
unvested, the certificates for those Option Shares shall be endorsed With an
appropriate legend evidencing the Corporation's repurchase rights and may be
held in escrow with the Corporation until such shares vest.

          (c)  In no event may this option be exercised for any fractional
shares.

     10.  Repurchase Rights. ALL OPTION SHARES ACQUIRED UPON THE EXERCISE OF
THIS OPTION SHALL BE SUBJECT TO CERTAIN RIGHTS OF THE CORPORATION AND ITS
ASSIGNS TO REPURCHASE THOSE SHARES IN ACCORDANCE WITH THE TERMS SPECIFIED IN THE
PURCHASE AGREEMENT.

     11.  Compliance with Laws and Regulations.

          (a)  The exercise of this option and the issuance of the Option Shares
upon such exercise shall be subject to compliance by the Corporation and
Optionee with all applicable requirements of law relating thereto and with all
applicable regulations of any stock exchange (or the Nasdaq National Market, if
applicable) on which the Common Stock may be listed for trading at the time of
such exercise and issuance.

          (b) The inability of the Corporation to obtain approval from any
regulatory body having authority deemed by the Corporation to be necessary to
the lawful issuance and sale of any Common Stock pursuant to this option shall
relieve the Corporation of any liability with respect to the non-issuance or
sale of the Common Stock as to which such approval shall not have been obtained.
The Corporation, however, shall use its best efforts to obtain all such
approvals.

     12.  Successors and Assigns.  Except to the extent otherwise provided in
Paragraphs 3 and 6, the provisions of this Agreement shall inure to the benefit
of, and be binding upon, the Corporation and its successors and assigns and
Optionee, Optionee's assigns and the legal representatives, heirs and legatees
of Optionee's estate,

     13.  Notices.  Any notice required to be given or delivered to the
Corporation under the terms of this Agreement shall be in writing and addressed
to the Corporation at its principal

                                       7.
<PAGE>

corporate offices. Any notice required to be given or delivered to Optionee
shall be in writing and addressed to Optionee at the address indicated below
Optionee's signature line on the Grant Notice. All notices shall be deemed
effective upon personal delivery or upon deposit in the U.S. mail, postage
prepaid and properly addressed to the party to be notified.

     14.  Financing.  The Plan Administrator may, in its absolute discretion and
without any obligation to do so, permit Optionee to pay the Exercise Price for
the purchased Option Shares by delivering a promissory note.  The terms of any
such promissory note (including the interest rate, the requirements for
collateral and the terms of repayment) shall be established by the Plan
Administrator in its sole discretion./1/

     15.  Construction.  This Agreement and the option evidenced hereby are made
and granted pursuant to the Plan and are in all respects limited by and subject
to the terms of the Plan.  All decisions of the Plan Administrator with respect
to any question or issue arising under the Plan or this Agreement shall be
conclusive and binding on all persons having an interest in this option.

     16.  Governing Law.  The interpretation, performance and enforcement of
this Agreement shall be governed by the laws of the State of Texas without
resort to that State's conflict-of-laws rules.

     17.  Stockholder Approval.

          (a)  The grant of this option is subject to approval of the Plan by
the Corporation's stockholders within twelve (12) months after the adoption of
the Plan by the Board. Notwithstanding any provision of this Agreement to the
contrary, this option, may not be exercised in whole or in part until such
stockbroker approval, is obtained. In the event that such stockholder approval
is not obtained, then this option shall terminate in its entirety and Optionee
shall have no further rights to acquire any Option Shares hereunder.

          (b)  If the Option Shares covered by this Agreement exceed, as of the
Grant Date, the number of shares of Common Stock which may without stockholder
approval be issued under the Plan, then this option shall be void with respect
to such excess shares, unless stockholder approval of an amendment sufficiently
increasing the number of shares of Common Stock issuable under the Plan is
obtained in accordance with the provisions of the Plan.

     18.  Additional Terms Applicable to an Incentive Option.  In the event this
option is designated an Incentive Option in the Grant Notice, the following
terms and conditions shall also apply to the grant:

               (i)   This option shall cease to qualify for favorable tax
treatment as an Incentive Option if (and to the extent) this option is exercised
for one or more Option Shares: (A) more than three (3) months after the date
Optionee ceases to be an Employee for any reason

_________________

/1/  Authorization of payment of the Exercise Price by a promissory note may,
under currently proposed Treasury Regulations, result in the loss of incentive
stock option treatment under the Federal tax laws.

                                       8.
<PAGE>

other than death or Permanent Disability or (B) more than twelve (12) months
after the date Optionee ceases to be an Employee by reason of Permanent
Disability.

               (ii)   This option shall not become exercisable in the calendar
year in which granted if (and to the extent) the aggregate Fair Market Value
(determined at the Grant Date) of the Common Stock for which this option would
otherwise first become exercisable in such calendar year would, when added to
the aggregate value (determined as of the respective date or dates of grant) of
the Common Stock and any other securities for which one or more other Incentive
Options granted to Optionee prior to the Grant Date (whether under the Plan or
any other option plan of the Corporation or any Parent or Subsidiary) first
become exercisable during the same calendar year, exceed One Hundred Thousand
Dollars ($100,000) in the aggregate. To the extent the exercisability of this
option is deferred by reason of the foregoing limitation, the deferred portion
shall become exercisable in the first calendar year or years thereafter in which
the One Hundred Thousand Dollar ($100,000) limitation of this Paragraph 18(ii)
would not be contravened, but such deferral shall in all events end immediately
prior to the effective date of a Corporate Transaction in which this option is
not to be assumed or the Optionee's Involuntary Termination in connection with a
Corporate Transaction, whereupon the option shall become immediately exercisable
as a Non-Statutory Option for the deferred portion of the Option Shares.

               (iii)  Should Optionee hold, in addition to this option, one or
more other options to purchase Common Stock which become exercisable for the
first time in the same calendar year as this option, then the foregoing
limitations on the exercisability of such options as Incentive Options shall be
applied on the basis of the order in which such options are granted.

                                       9.
<PAGE>

                                   APPENDIX

     The following definitions shall be in effect under the Agreement:

     A.   Agreement shall mean this Stock Option Agreement.

     B.   Board shall mean the Corporation's Board of Directors.

     C.   Code shall mean the Internal Revenue Code of 1986, as amended.

     D.   Common Stock shall mean the Corporation's common stock.

     E.   Corporate Transaction shall mean either of the following stockholder
approved transactions to which the Corporation is a party:

               (i)  a merger or consolidation in which securities possessing
more than fifty percent (50%) of the total combined voting power of the
Corporation's outstanding securities are transferred to a person or persons
different from the persons holding those securities immediately prior to such
transaction, or

               (ii) the sale, transfer or other disposition of all or
substantially all of the Corporation's assets in complete liquidation or
dissolution of the Corporation.

     F.   Corporation shall mean Progressive System Technologies, loc., a Texas
corporation.

     G.   Domestic Relations Order shall mean any judgment, decree or order
(including approval of a property settlement agreement) which provides or
otherwise conveys, pursuant to applicable State domestic relations laws
(including community property laws), mantel property rights to any spouse or
former spouse of the Optionee.

     H.   Employee shall mean an individual who is in the employ of the
Corporation (or any Parent or Subsidiary), subject to the control and direction
of the employer entity as to both the work to be performed and the mariner and
method of performance.

     I.   Exercise Date shall mean the date on which the option shall have been
exercised in accordance with Paragraph 9 of the Agreement.

     J.   Exercise Price shall mean the exercise price per share as specified in
the Grant Notice.

     K.   Expiration Date shall mean the date on which the option expires as
specified in the Grant Notice.

     L.   Fair Market Value per share of Common Stock on any relevant date shall
be determined in accordance with the following provisions:

               (i)  If the Common Stock is at the time traded on the Nasdaq
National Market, then the Fair Market Value shall be the closing selling price
per share of Common Stock

                                      1.
<PAGE>

on the date in question, as the price is reported by the National Association of
Securities Dealers on the Nasdaq National Market or any successor system. If
there is no closing selling price for the Common Stock on the date in question,
then the Fair Market Value shall be the closing selling price on the last
preceding date for which such quotation exists.

               (ii)   If the Common Stock is at the time listed on any Stock
Exchange, then the Fair Market Value shall be the closing selling price per
share of Common Stock on the date in question on the Stock Exchange determined
by the Plan Administrator to be the primary market for the Common Stock, as such
price is officially quoted in the composite tape of transactions on such
exchange. If there is no closing selling price for the Common Stock on the date
in question, then the Fair Market Value shall be the closing selling price on
the last preceding date for which such quotation exist.

               (iii)  If the Common Stock is at the time neither listed on any
Stock Exchange nor traded on the Nasdaq National Market, then the Fair Market
Value shall be determined by the Plan Administrator after taking into account
such factors as the Plan Administrator shall deem appropriate.

     M.   Grant Date shall mean the date of grant of the option as specified in
the Grant Notice.

     N.   Grant Notice shall mean the Notice of Grant of Stock Option
accompanying the Agreement, pursuant to which Optionee has been informed of the
basic terms of the option evidenced hereby.

     O.   Incentive Option shall mean an option which satisfies the requirements
of Code Section 422.

     P.   Involuntary Termination shall mean the termination of Optionee's
Service which occurs by reason of:

               (i)    Optionee's involuntary dismissal or discharge by the
Corporation for reasons other than Misconduct, or

               (ii)   Optionee's voluntary resignation following (A) a change in
Optionee's position with the Corporation (or Parent or Subsidiary employing
Optionee) which materially reduces Optionee's level of responsibility, (B) a
reduction in Optionee's level of compensation (including base salary, fringe
benefits and participation in corporate-performance based bonus or incentive
programs) by more than fifteen percent (15%) or (C) a relocation of Optionee's
place of employment by more than fifty (50) miles, provided and only if such
change, reduction or relocation is effected by the Corporation without
Optionee's consent.

     Q.   Misconduct shall mean the commission of any act of fraud, embezzlement
or dishonesty by Optionee, any unauthorized use or disclosure by Optionee of
confidential information or trade secrets of the Corporation (or any Parent or
Subsidiary), or any other intentional misconduct by Optionee adversely affecting
the business or affairs of the Corporation (or any Parent or Subsidiary) in a
material manner.  The foregoing definition shall not be deemed to be inclusive
of all the acts or omissions which the Corporation (or any Parent or Subsidiary)

                                      2.
<PAGE>

may consider as grounds for the dismissal or discharge of Optionee or any other
individual in the Service of the Corporation (or any Parent or Subsidiary).

     R.   1934 Act shall mean the Securities Exchange Act of 1934, as amended.

     S.   Non-Statutory Option shall mean an option not intended to satisfy the
requirements of Code Section 422.

     T.   Option Shares shall mean the number of shares of Common Stock subject
to the option as specified in the Grant Notice.

     U.   Optionee shall mean the person to whom the option is granted as
specified in the Grant Notice.

     V.   Paint shall mean any corporation (other than the Corporation) in an
unbroken chain of corporations ending with the Corporation, provided each
corporation in the unbroken chain (other than the Corporation) owns, at the rime
of the determination, stock possessing fifty percent (50%) or more of the total
combined voting power of all classes of stock in one of the other corporations
in such chain.

     W.   Permanent Disability shall mean the inability of Optionee to engage in
any substantial gainful activity by reason of any medically determinable
physical or mental impairment which is expected to result in death or has lasted
or can be expected to last for a continuous period of twelve (12) months or
more.

     X.   Plan shall mean the Corporation's 1995 Stock Option/Stock Issuance
Plan.

     Y.   Plan Administrator shall mean either the Board or a committee of Board
members, to the extent the committee is at the time responsible for the
administration of the Plan.

     Z.   Purchase Agreement shall mean the stock purchase agreement in
substantially the form of Exhibit B to the Grant Notice.

     AA.  Qualified Domestic Relations Order shall mean a Domestic Relations
Order which substantially complies with the requirements of Code Section 414(p).
The Plan Administrator shall have the sole discretion to determine whether a
Domestic Relations Order is a Qualified Domestic Relations Order.

     BB.  Service shall mean Optionee's performance of services for the
Corporation (or any Parent or Subsidiary) in the capacity of an Employee, a
non-employee member of the board of directors or a consultant or independent
advisor.

     CC.  Stock Exchange shall mean the American Stock Exchange or the New York
Stock Exchange.

     DD.  Subsidiary shall mean any corporation (other than the Corporation) in
an unbroken chain of corporations beginning with the Corporation, provided each
corporation (other than the last corporation) in the unbroken chain owns, at the
time of the determination, stock

                                      3.
<PAGE>

possessing fifty percent (50%) or more of the total combined voting power of all
classes of stock in one of the other corporations in such chain.

     EE.  Vesting Schedule shall mean the vesting schedule specified in the
Grant Notice, as such vesting schedule is subject to acceleration in the event
of a Corporate Transaction or an Involuntary Termination following a Corporate
Transaction.

                                      4.
<PAGE>

                                   EXHIBIT B

                           STOCK PURCHASE AGREEMENT

                                      1.
<PAGE>

                     PROGRESSIVE SYSTEM TECHNOLOGIES, INC.
                           STOCK PURCHASE AGREEMENT

     Agreement made as of this_____ day of ________ 19__, by and between
Progressive System Technologies,  Inc., a Texas corporation and
______________________, Optionee under the Corporation's 1995 Stock Option/Stock
Issuance Plan.

     All capitalized terms in this Agreement shall have the meaning assigned to
them in this Agreement or in the attached Appendix.

     A.   EXERCISE OF OPTION

          1.   Exercise.  Optionee hereby purchases ___________ shares of Common
Stock (the "Purchased Shares") pursuant to that certain option (the "Option")
granted Optionee on _________________, 199__ (the "Grant Date") to purchase up
to _______________shares of Common Stock under the Plan at the exercise price of
$__________ per share (the "Exercise Price").

          2.   Payment.  Concurrently with the delivery of this Agreement to the
Corporation, Optionee shall pay the Exercise Price for the Purchased Shares in
accordance with the provisions of the Option Agreement and shall deliver
whatever additional documents may be required by the Option Agreement as a
condition for exercise, together with a duly-executed blank Assignment Separate
from Certificate (in the form attached hereto as Exhibit I) with respect to the
Purchased Shares.

          3.   Stockholder Rights.  Until such time as the Corporation exercises
the Repurchase Right or the First Refusal Right, Optionee (or any successor in
interest) shall have all the rights of a stockholder (including voting, dividend
and liquidation rights) with respect to the Purchased Shares, subject, however,
to the transfer restrictions of Articles B and C.

     B.   SECURITIES LAW COMPLIANCE

          1.   Restricted Securities.  The Purchased Shares have not been
registered under the 1933 Act and are being issued to Optionee in reliance upon
the exemption from such registration provided by SEC Rule 701 for stock
issuances under compensatory benefit plans such as the Plan.  Optionee hereby
confirms that Optionee has been informed that the Purchased Shares are
restricted securities under the 1933 Act and may not be resold or transferred
unless the Purchased Shares are first registered under the Federal securities
laws or unless an exemption from such registration is available.  Accordingly,
Optionee hereby acknowledges that Optionee is prepared to hold the Purchased
Shares for an indefinite period and that Optionee is aware that SEC Rule.  144
issued under the 1933 Act which exempts certain resales of unrestricted
securities is not presently available to exempt the resale of the Purchased
Shares from the registration requirements of the 1933 Act.

          2.   Restriction on Disposition of Purchased Shares.  Optionee shall
make no disposition of the Purchased Shares (other than a Permitted Transfer)
unless and until there is compliance with all of the following requirements:

                                      1.
<PAGE>

               (i)   Optionee shall have provided the Corporation with a written
summary of the terms and conditions of the proposed disposition.

               (ii)  Optionee shall have complied with all requirements of this
 .agreement applicable to the disposition of the Purchased Shares.

               (iii) Optionee shall have provided the Corporation with written
assurances, in form and substance satisfactory to the Corporation, that (a) the
proposed disposition does not require registration of the Purchased Shares under
the 1933 Act or (b) all appropriate action necessary for compliance with the
registration requirements of the 1933 Act or any exemption from registration
available under the 1933 Act (including Rule 144) has been taken.

          The Corporation shall not be required (i) to transfer on its books any
Purchased Shares which have been sold or transferred in violation of the
provisions of this Agreement or (ii) to treat as the owner of the Purchased
Shares, or otherwise to accord voting, dividend or liquidation rights to, any
transferee to whom the Purchased Shares have been transferred in contravention
of this Agreement.

          3.   Restrictive Legends.  The stock certificates for the Purchased
Shares shall be endorsed with the following restrictive legends:

               (i)   "The shares represented by this certificate have not been
registered under the Securities Act of 1933. The shares may not be sold or
offered for sale in the absence of (a) an effective registration statement for
the shares under such Act, (b) a no action letter of the Securities and Exchange
Commission with respect to such sale or offer or (c) satisfactory assurances to
the Corporation that registration under such Act is not required with respect to
such sale or offer."

               (ii)  "The shares represented by this certificate are unvested
and are subject to certain repurchase rights and rights of first refusal granted
to the Corporation and accordingly may not be sold, assigned, transferred,
encumbered, or in any manner disposed of except in conformity with the terms of
a written agreement dated _________, 199___ between the Corporation and the
registered holder of the shares (or the predecessor in interest to the shares).
A copy of such agreement is maintained at the Corporation's principal corporate
offices."

     C.   TRANSFER RESTRICTIONS

          1.   Restriction on Transfer.  Except for any Permitted Transfer,
Optionee shall not transfer, assign, encumber or otherwise dispose of any of the
Purchased Shares which are subject to the Repurchase Right.  In addition,
Purchased Shares which are released from the Repurchase Right shall not be
transferred, assigned, encumbered or otherwise disposed of in contravention of
the First Refusal Right or the Market Stand-Off.

          2.   Transferee Obligations.  Each person (other than the Corporation)
to whom the Purchased Shares are transferred by means of a Permitted Transfer
must, as a condition precedent to the validity of such transfer, acknowledge in
writing to the Corporation

                                      2.
<PAGE>

that such person is bound by the provisions of this Agreement and that the
transferred shares are subject to (i) the Repurchase Right, (ii) the First
Refusal Right and (iii) the Market Stand-Off, to the same extent such shares
would be so subject if retained by Optionee,

          3.   Market Stand-Off.

               a.   In connection with any underwritten public offering by the
Corporation of its equity securities pursuant to an effective registration
statement filed under the 1933 Act, including the Corporation's initial public
offering, Owner shall not sell, make any short sale of, loan, hypothecate,
pledge, grant any option for the purchase of, or otherwise dispose or transfer
for value or otherwise agree to engage in any of the foregoing transactions with
respect to, any Purchased Shares without the prior written consent of the
Corporation or its underwriters.  Such restriction (the "Market Stand-Off')
shall be in effect for such period of time from and after the effective date of
the final prospectus for the offering as may be requested by the Corporation or
such underwriters.  In no event, however, shall such period exceed one hundred
eighty (180) days and the Market Stand-Off shall in all events terminate two (2)
years after the effective date of the Corporation's initial public offering.

               b.   Owner shall be subject to the Market Stand-Off provided and
                                                                   --------
only the officers and directors of the Corporation are also subject to similar
restrictions.

               c.   Any new, substituted or additional securities which are by
reason of any Recapitalization or Reorganization distributed with respect to the
Purchased Shares shall be immediately subject to the Market Stand-Off, to the
same extent the Purchased Shares are at such time covered by such provisions.

               d.   In order to enforce the Market Stand-Off, the Corporation
may impose stop-transfer instructions with respect to the Purchased Shares until
the end of the applicable stand-off period.

     D.   REPURCHASE RIGHT

          1.   Grant.  The Corporation is hereby granted the right (the
"Repurchase Right"), exercisable at any time during the ninety (90)-day period
following the date Optionee ceases for any reason to remain in Service or (if
later) during the ninety (90)-day period following the execution date of this
Agreement, to repurchase at the Exercise Price all or any portion of the
Purchased Shares in which Optionee is not, at the time of his or her cessation
of Service, vested in accordance with the Vesting Schedule (such shares to be
hereinafter referred to as the "Unvested Shares").

          2.   Exercise of the Repurchase Right.  The Repurchase Right shall be
exercisable by written notice delivered to each Owner of the Unvested Shares
prior to the expiration of the ninety (90)-day exercise period.  The notice
shall indicate the number of Unvested Shares to be repurchased and the date on
which the repurchase is to be effected, such date to be not more than thirty
(30) days after the date of such notice.  The certificates representing the
Unvested Shares to be repurchased shall be delivered to the Corporation prior to
the close of business on the date specified for the repurchase.  Concurrently
with the receipt of such stock certificates, the Corporation shall pay to Owner,
in cash or cash equivalents

                                      3.
<PAGE>

(including the cancellation of any purchase-money indebtedness), an amount equal
to the Exercise Price previously paid for the Unvested Shares which are to be
repurchased from Owner.

          3.   Termination of the Repurchase Right.  The Repurchase Right shall
terminate with respect to any Unvested Shares for which it is not timely
exercised under Paragraph D.2.  In addition, the Repurchase Right shall
terminate and cease to be exercisable with respect to any and all Purchased
Shares in which Optionee vests in accordance with the Vesting Schedule.  All
Purchased Shares as to which the Repurchase Right lapses shall, however, remain
subject to (i) the First Refusal Right and (ii) the Market Stand-Off.

          4.   Aggregate Vesting Limitation.  If the Option is exercised in more
than one increment so that Optionee is a party to one or more other Stock
Purchase Agreements (the "Prior Purchase Agreements") which are executed prior
to the date of this Agreement, then the total number of Purchased Shares as to
which Optionee shall be deemed to have a fully-vested interest under this
Agreement and all Prior Purchase Agreements shall not exceed in the aggregate
the number of Purchased Shares in which Optionee would otherwise at the time be
vested, in accordance with the Vesting Schedule, had all the Purchased Shares
(including those acquired under the Prior Purchase Agreements) been acquired
exclusively under this Agreement.

          5.   Recapitalization.  Any new, substituted or additional securities
or other property (including cash paid other than as a regular cash dividend)
which is by reason of any Recapitalization distributed with respect to the
Purchased Shares shall be immediately subject to the Repurchase Right, but only
to the extent the Purchased Shares are at the time covered by such right.
Appropriate adjustments to reflect such distribution shall be made to the number
and/or class of Purchased Shares subject to this Agreement and to the price per
share to be paid upon the exercise of the Repurchase Right in order to reflect
the effect of any such Recapitalization upon the Corporation's capital
structure; provided, however, that the aggregate purchase price shall remain the
           --------
same.

          6.   Corporate Transaction.

               a.   Immediately prior to the consummation of any Corporate
Transaction, the Repurchase Right shall automatically lapse in its entirety,
except to the extent the Repurchase Right is to be assigned to the successor
corporation (or parent thereof) in connection with the Corporate Transaction.

               b.   To the extent the Repurchase Right remains in effect
following a corporate Transaction, such right shall apply to the new capital
stock or other property (including any cash payments) received in exchange for
the Purchased Shares in consummation of the Corporate Transaction, but only to
the extent the Purchased Shares are at the time covered by such right.
Appropriate adjustments shall be made to the price per share payable upon
exercise of the Repurchase Right to reflect the effect of the Corporate
Transaction upon the Corporation's capital structure; provided, however, that
                                                      --------
the aggregate purchase price shall remain the same.

               c.   The Repurchase Right shall automatically lapse in its
entirety, and all the Purchased Shares shall immediately vest in full, upon an
Involuntary Termination of

                                      4.
<PAGE>

Optionee's service within eighteen (18) months following the effective date of a
Corporate Transaction in which the Repurchase Right has been assigned.

     E.   RIGHT OF FIRST REFUSAL

          1.   Grant.  The Corporation is hereby granted the right of first
refusal (the "First Refusal Right"), exercisable in connection with any proposed
transfer of the Purchased Shares in which Optionee has vested in accordance with
the Vesting Schedule.  For purposes of this Article E, the term "transfer" shall
include any sale, assignment, pledge, encumbrance or other disposition of the
Purchased Shares intended to be made by Owner, but shall not include any
Permitted Transfer.

          2.   Notice or Intended Disposition.  In the event any Owner of
Purchased Shares in which Optionee has vested desires to accept a bona fide
third-party offer for the transfer of any or all of such shares (the Purchased
Shares subject to such offer to be hereinafter referred to as the "Target
Shares"), Owner shall promptly (i) deliver to the Corporation written notice
(the "Disposition Notice") of the terms of the offer, including the purchase
price and the identity of the third-party offeror, and (ii) provide satisfactory
proof that the disposition of the Target Shares to such third-party offeror
would not be in contravention of the provisions set forth in Articles B and C.

          3.   Exercise of the First Refusal Right.  The Corporation shall, for
a period of forty-five (45) days following receipt of the Disposition Notice,
have the right to repurchase any or all of the Target Shares subject to the
Disposition Notice upon the same terms as those specified therein or upon such
other terms (not materially different from those specified in the Disposition
Notice) to which Owner consents.  Such right shall be exercisable by delivery of
written notice (the "Exercise Notice") to Owner prior to the expiration of the
forty-five (45)-day exercise period.  If such right is exercised with respect to
all the Target Shares, then the Corporation shall effect the repurchase of such
shares, including payment of the purchase price, not more than fifteen (15)
business days after delivery of the Exercise Notice; and at such time the
certificates representing the Target Shares shall be delivered to the
Corporation.

          Should the purchase price specified in the Disposition Notice be
payable in property other than cash or evidences of indebtedness, the
Corporation shall have the right to pay the purchase price in the form of cash
equal in amount to the value of such property.  If Owner and the Corporation
cannot agree on such cash value within thirty (30) days after the Corporation's
receipt of the Disposition Notice, the valuation shall be made by an appraiser
of recognized standing selected by Owner and the Corporation or.  if they cannot
agree on an appraiser within forty-five (45) days after the Corporation's
receipt of the Disposition Notice, each shall select an appraiser of recognized
standing and the two (2) appraisers shall designate a third appraiser of
recognized standing, whose appraisal shall be determinative of such value.  The
cost of such appraisal shall be shared equally by Owner and the Corporation.
The closing shall then be held on the later of (i) the fifteenth (15th) business
day, following delivery of the Exercise Notice or (ii) the fifteenth (15th)
business day after such valuation shall have been made.

                                      5.
<PAGE>

          4.   Non-Exercise of the First Refusal Right.  In the event the
Exercise Notice is not given to Owner prior to the expiration of the forty-five
(45)-day exercise period, Owner shall have a period of thirty (30) days
thereafter in which to sell or otherwise dispose of the Target Shares to the
third-party offeror identified in the Disposition Notice upon terms (including
the purchase price) no more favorable to such third-parry offeror than those
specified in the Disposition Notice; provided, however, that any such sale or
                                     --------
disposition must not be effected in contravention of the provisions of Article B
and Paragraph C.3.  The third-party offeror shall acquire the Target Shares free
and clear of the Repurchase Right and the First Refusal Right, but the acquired
shares shall remain subject to Article B and Paragraph C.3.  In the event Owner
does not effect such sale or disposition of the Target Shares within the
specified thirty (30)-day period, the First Refusal Right shall continue to be
applicable to any subsequent disposition of the Target Shares by Owner until
such right lapses.

          5.   Partial Exercise of the First Refusal Right.  In the event the
Corporation makes a timely exercise of the First Refusal Right with respect to a
portion, but not all, of the Target Shares specified in the Disposition Notice,
Owner shall have the option, exercisable by written notice to the Corporation
delivered within fifteen (15) business days after Owner's receipt of the
Exercise Notice, to effect the sale of the Target Shares pursuant to either of
the following alternatives:

               (i)  sale or other disposition of all the Target Shares to the
third-party offeror identified in the Disposition Notice, but in full compliance
with the requirements of Paragraph E.4, as if the Corporation did not exercise
the First Refusal Right; or

               (ii) sale to the Corporation of the portion of the Target Shares
which the Corporation has elected to purchase, such sale to be effected in
substantial conformity with the provisions of Paragraph E.3. The First Refusal
Right shall continue to be applicable to an), subsequent disposition of the
remaining Target Shares until such right lapses.

          Failure of Owner to deliver timely notification to the Corporation
shall be deemed to be an election by Owner to sell the Target Shares pursuant to
alternative (i) above.

          6.   Recapitalization/Reorganization.

               a.   Any new, substituted or additional securities or other
property which is by reason of any Recapitalization distributed with respect to
the Purchased Shares shall be immediately subject to the First Refusal Right,
but only to the extent the Purchased Shares are at the time covered by such
right.

               b.   In the event of a Reorganization, the First Refusal Right
shall remain in full force and effect and shall apply to the new capital stock
or other property received in exchange for the Purchased Shares in consummation
of the Reorganization, but only to the extent the Purchased Shares arc at the
time covered by such right.

          7.   Lapse.  The First Refusal Right shall lapse upon the earliest to
                                                                    --------
occur of (i) the first date on which shares of the Common Stock are held of
record by more than five hundred (500) persons, (ii) a determination is made by
the Board that a public market exists for the outstanding shares of Common Stock
or (iii) a firm commitment underwritten public offering,

                                      6.
<PAGE>

pursuant to an effective registration statement under the 1933 Act, covering the
offer and sale of the Common Stock in the aggregate amount of at least ten
million dollars ($10,000,000). However, the Market Stand-Off shall continue to
remain in full force and effect following the lapse of the First Refusal Right.

     F.   SPECIAL TAX ELECTION

          The acquisition of the Purchased Shares may result in adverse tax
consequences which may be avoided or mitigated by filing an election under Code
Section 83(b).  Such election must be filed within thirty (30) days after the
date of this Agreement.  A description of the tax consequences applicable to the
acquisition of the Purchased Shares and the form for making the Code Section
83(b) election are set forth in Exhibit II. OPTIONEE SHOULD CONSULT WITH HIS OR
HER TAX ADVISOR TO DETERMINE THE TAX CONSEQUENCES OF ACQUIRING THE PURCHASED
SHARES AND THE ADVANTAGES AND DISADVANTAGES OF FILING THE CODE SECTION 83(b)
ELECTION, OPTIONEE ACKNOWLEDGES THAT IT IS OPTIONEE'S SOLE RESPONSIBILITY, AND
NOT THE CORPORATION'S, TO FILE A TIMELY ELECTION UNDER CODE SECTION 830)), EVEN
IF OPTIONEE REQUESTS THE CORPORATION OR ITS REPRESENTATIVES TO MAKE THIS FILING
ON HIS OR HER BEHALF.

     G.   GENERAL PROVISIONS

          1.   Assignment.  The Corporation may assign the Repurchase Right
and/or the First Refusal Right to any person or entity selected by the Board,
including (without limitation) one or more stockholders of the Corporation.

          2.   No Employment or Service Contract.  Nothing in this Agreement or
in the 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 al any time for any reason, with or
without cause.

          3.   Notices.  Any notice required to be given under this Agreement
shall be ha writing and shall be deemed effective upon personal delivery or upon
deposit in the U.S. mail, registered or certified, postage prepaid and properly
addressed to the party entitled to such notice at the address indicated below
such party's signature line on this Agreement or at such other address as such
party may designate by ten (10) days advance written notice under this paragraph
to all other parties to this Agreement.

          4.   No Waiver.  The failure of the Corporation in any instance to
exercise the Repurchase Right or the First Refusal Right shall not constitute a
waiver of any other repurchase rights and/or rights of first refusal that may
subsequently arise under the provisions of this Agreement or any other agreement
between the Corporation and Optionee.  No waiver of any breach or condition of
this Agreement shall be deemed to be a waiver of any other or subsequent breach
or condition, whether of like or different nature.

                                      7.
<PAGE>

          5.   Cancellation of Shares. If the Corporation shall make available,
at the time and place and in the amount and form provided in this Agreement, the
consideration for the Purchased Shares to be repurchased in accordance with the
provisions of this Agreement, then from and after such time, the person from
whom such shares are to be repurchased shall no longer have any rights as a
holder of such shares (other than the right to receive payment of such
consideration in accordance with this Agreement).  Such shares shall be deemed
purchased in accordance with the applicable provisions hereof, and the
Corporation shall be deemed the owner and holder of such shares, whether or not
the certificates therefor have been delivered as required by this Agreement.

          6.   Optionee Undertaking.  Optionee hereby agrees to take whatever
additional action and execute whatever additional documents the Corporation may
deem necessary or advisable in order to carry out or effect one or more of the
obligations or restrictions imposed on either Optionee or the Purchased Shares
pursuant to the provisions of this .Agreement.

          7.   Governing Law.  This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Texas without resort to
that State's conflict-of-laws rules.

          8.   Successors and Assigns.  The provisions of this Agreement shall
inure to the benefit of, and be binding upon the Corporation and its successors
and assigns and upon Optionee, Optionee's permitted assigns and the legal
representatives, heirs and legatees of Optionee's estate, whether or not any
such person shall have become a party to this Agreement and have agreed in
writing to join herein and be bound by the terms hereof.

     In Witness Whereof, the parties have executed this Agreement on the day and
year first indicated above.

                                   Progressive System Technologies, Inc.

                                   By:__________________________________________

                                   Title:_______________________________________

                                   Address:_____________________________________

                                           _____________________________________


                                   _____________________________________________
                                   OPTIONEE

                                   Address:_____________________________________

                                           _____________________________________

                                      8.
<PAGE>

                                   EXHIBIT I

                     ASSIGNMENT SEPARATE FROM CERTIFICATE

     FOR VALUE RECEIVED hereby sell(s), assign(s) and transfer(s) unto
Progressive System Technologies, Inc. (the "Corporation"), _________________
(_________) shares of the Common Stock of the Corporation standing in his or her
name on the books of the Corporation represented by Certificate No.___________
herewith and do(es) hereby irrevocably constitute and appoint
_______________________ Attorney to transfer the said stock on the books of the
Corporation with full power of substitution in the premises.

Dated:__________________

                                        Signature_______________________________


Instruction: Please do not fill in any blanks other than the signature line.
Please sign exactly as you would like your name to appear on the issued stock
certificate.  The purpose of this assignment is to enable the Corporation to
exercise the Repurchase Right without requiring additional signatures on the
part of Optionee.

                                      1.
<PAGE>

                                  EXHIBIT II

                      FEDERAL INCOME TAX CONSEQUENCES AND
                          SECTION 83(b) TAX ELECTION

     I.   Federal Income Tax Consequences and Section 83(b) Election For
Exercise of Non-Statutory- Option. If the Purchased Shares are acquired pursuant
to the exercise of a Non-Statutory Option, as specified in the Grant Notice,
then under Code Section 83, the excess of the Fair Market Value of the Purchased
Shares on the date any forfeiture restrictions applicable to such shares lapse
over the Exercise Price paid for such shares will be reportable as ordinary
income on the lapse date. For this purpose, the term "forfeiture restrictions"
includes the right of the Corporation to repurchase the Purchased Shares
pursuant to the Repurchase Right. However, Optionee may elect under Code Section
83(b) to be taxed at the time the Purchased Shares are acquired, rather than
when and as such Purchased Shares cease to be subject to such forfeiture
restrictions. Such election must be filed with the Internal Revenue Service
within thirty (30) days after the date of the Agreement. Even if the Fair Market
Value of the Purchased Shares on the date of the Agreement equals the Exercise
Price paid (and thus no tax is payable), the election must be made to avoid
adverse tax consequences in the future. The form for making this election is
attached as part of this exhibit. FAILURE TO MAKE THIS FILING WITHIN THE
APPLICABLE THIRTY (30)-DAY PERIOD WILL RESULT IN THE RECOGNITION OF ORDINARY
INCOME BY OPTIONEE AS THE FORFEITURE RESTRICTIONS LAPSE.

     II. Federal Income Tax Consequences and Conditional Section.83(b), Election
For Exercise of Incentive Option. If the Purchased Shares are acquired pursuant
to the exercise of ma Incentive Option, as specified in the Grant Notice, then
the following tax principles shall be applicable to the Purchased Shares:

               (i) For regular tax purposes, no taxable income will be
recognized at the time the Opt/on is exercised.

               (ii) The excess of (a) the Fair Market Value of the Purchased
Shares on the date the Option is exercised or (if later) on the date any
forfeiture restrictions applicable to the Purchased Shares lapse over (b) the
Exercise Price paid for the Purchased Shares will be includible in Optionee's
taxable income for alternative minimum tax purposes.

               (iii) If Optionee makes a disqualifying disposition of the
Purchased Shares, then Optionee will recognize ordinary income in the year of
such disposition equal in amount to the excess of (a) the Fair Market Value of
the Purchased Shares on the date the Option is exercised or (if later) on the
date any forfeiture restrictions applicable to the Purchased Shares lapse over
(b) the Exercise Price paid for the Purchased Shares. Any additional gain
recognized upon the disqualifying disposition will be either short-term or long-
term capital gain depending upon the period for which the Purchased Shares are
held prior to the disposition.

               (iv) For purposes of the foregoing, the term "forfeiture
restrictions" will include the right of the Corporation to repurchase the
Purchased Shares pursuant to the Repurchase Right. The term "disqualifying
disposition" means any sale or other disposition(1)

                                      1.
<PAGE>

of the Purchased Shares within two (2) years after the Grant Date or within one
(1) year after the exercise date of the Option.

               (v) In the absence of final Treasury Regulations relating to
Incentive Options, it is not certain whether Optionee may, in connection with
the exercise of the Option for any Purchased Shares at the time subject to
forfeiture restrictions, file a protective election under Code Section 83(b)
which would limit (a) Optionee's alternative minimum taxable income upon
exercise and (b) Optionee's ordinary income upon a disqualifying disposition to
the excess of the Fair Market Value of the Purchased Shares on the date the
Option is exercised over the Exercise Price paid for the Purchased Shares.
Accordingly, such election if properly filed will only be allowed to the extent
the final Treasury Regulations permit such a protective election. Page 2 of the
attached form for making the election should be filed with any election made in
connection with the exercise of an Incentive Option.


/1./Generally, a disposition of shares purchased under an Incentive Option
includes any transfer of legal title, including a transfer by sale, exchange or
gift, but does not include a transfer to the Optionee's spouse, a transfer into
joint ownership with right of survivorship if Optionee remains one of the joint
owners, a pledge, a transfer by bequest or inheritance or certain tax free
exchanges permitted under the Code.

                                      2.
<PAGE>

                            SECTION 83(b) ELECTION

          This statement is being made under Section 83(b) of the Internal
Revenue Code, pursuant to Treas. Reg. Section 1.83-2.

(1)  The taxpayer who performed the services is:

     Name:

     Address:
     Taxpayer Ident. No.:

(2)  The property with respect to which the election is being made is_________
     shares of the common stock of Progressive System Technologies, Inc.

(3)  The property was issued on ___________, 199___.

(4)  The taxable year in which the election is being made is the calendar year
     199___.

(5)  The property is subject to a repurchase right pursuant to which the issuer
     has the right to acquire the property at the original purchase price if for
     any reason taxpayer's employment with the issuer is terminated. The
     issuer's repurchase right lapses in a series of installments over a five
     (5)-year period ending on 199-,

(6)  The fair market value at the time of transfer (determined without regard to
     any restriction other than a restriction which by its terms will never
     lapse) is $ per share.

(7)  The mount paid for such property is $_______ per share,

(8)  A copy of this statement was furnished to Progressive System Technologies,
     Inc. for whom taxpayer rendered the services underlying the transfer of
     property.

(9)  This statement is executed on____________199 ___


___________________________         ____________________________
Spouse (if any)                     Taxpayer

This election must be filed with the Interne! Revenue Service Center with which
taxpayer files his or her Federal income tax returns and must be made within
thirty (30) days after the execution date of the Stock Purchase Agreement. This
filing should be made by registered or certified mail, return receipt requested.
Optionee must retain two (2) copies of the completed form for filing with his or
her Federal and state tax returns for the current tax year and an additional
copy for his or her records.

The property described in the above Section S3(b) election is comprised of
shares of common stock acquired pursuant to the exercise of an incentive stock
option under Section 422 of the Internal Revenue Code (the "Code"). Accordingly.
it is the intent of the Taxpayer to utilize this election to achieve the
following tax results:

                                      3.
<PAGE>

     1.   The purpose of this election is to have the alternative minimum
taxable income attributable to the purchased shares measured by the amount by
which the fair market value of such shares at the time of their transfer to the
Taxpayer exceeds the purchase price paid for the shares. In the absence of this
election, such alternative minimum taxable income would be measured by the
spread between the fair market value of the purchased Shares and the purchase
price which exists on the various lapse dates in effect for the forfeiture
restrictions applicable to such shares. The election is to be effective to the
full extent permitted under the Code.

     2.   Section 421(a)(1) of the Code expressly excludes from income any
excess of the fair market value of the purchased shares over the amount paid for
such shares. Accordingly, this election is also intended to be effective in the
event there is a "disqualifying disposition" of the shares, within the meaning
of Section 421(b) of the Code, which would otherwise render the provisions of
Section 83(a) of the Code applicable at that time. Consequently, the Taxpayer
hereby elects to have the amount of disqualifying disposition income measured by
the excess of the fait market value of the purchased shares on the date of
transfer to the Taxpayer over the amount paid for such shares. Since Section
421(a) presently applies to the shares which are the subject of this Section
83(b) election, no taxable income is actually recognized for regular tax
purposes at this time, and no income taxes are payable, by the Taxpayer as a
result of this election.

THIS PAGE 2 IS TO BE ATTACHED TO ANY SECTION 83(b) ELECTION FILED IN CONNECTION
WITH THE EXERCISE OF AN INCENTIVE STOCK OPTION UNDER THE FEDERAL TAX LAWS.

                                      4.
<PAGE>

                                   APPENDIX
                                   --------

            The following definitions shall be in effect under the Agreement:

     A.   Agreement shall mean this Stock Purchase Agreement.

     B.   Board shall mean the Corporation's Board of Directors.

     C.   Code shall mean the Internal Revenue Code of 1986, as amended.

     D.   Common Stock shall mean the Corporation's common stock.

     E.   Corporate Transaction shall mean either of the following stockholder-
approved transactions:

          (i) a merger or consolidation in which securities possessing more than
fifty percent (50%) of the total combined voting power of the Corporation's
outstanding securities are transferred to a person or persons different from the
persons holding those securities immediately prior to such "transaction, or

          (ii) the sale, transfer or other disposition of all or substantially
all of the Corporation's assets in complete liquidation or dissolution of the
Corporation.

     F.   Corporation shall mean Progressive System Technologies, Inc., a Texas
corporation.

     G.   Disposition Notice shall have the meaning assigned to such term in
Paragraph E.2.

     H.   Exercise Notice shall have the meaning assigned to such term in
Paragraph E.3.

     I.   Exercise-Price shall have the meaning assigned to such term in
Paragraph A-1.

     J.   Fair Market Value of a share of Common Stock on any relevant date
prior to the initial public offering of the Common Stock shall be determined by
the Plan Administrator after taking into account such factors as it shall deem
appropriate.

     K.   First Refusal Right shall mean the right granted to the Corporation in
accordance with Article E.

     L.   Grant Date shall have the meaning assigned to such term in Paragraph
A.1.

     M.   Grant Notice shall mean the Notice of Grant of Stock Option pursuant
to which Optionee has been informed of the basic terms of the Option.

     N.   Incentive Option shall mean an option which satisfies the requirements
of Code Section 422.

                                      5.
<PAGE>

     O.   Involuntary Termination shall mean the termination of Optionee's
Service which occurs by reason of:

          (i) Optionee's involuntary dismissal or discharge by the Corporation
for reasons other than Misconduct, or

          (ii) Optionee's voluntary resignation following (A) a change in
Optionee's position with the Corporation which materially reduces Optionee's
level of responsibility, (B) a reduction in Optionee's level of compensation
(including base salary, fringe benefits and participation in corporate-
performance based bonus or incentive programs) by more than fifteen percent
(15%) or (C) a relocation of Optionee's place of employment by more than fifty
(50) miles, provided and only if such change, reduction or relocation is
effected by the Corporation without Optionee's consent.

     P.   Market Stand-Off shall mean the market stand-off restriction specified
in Paragraph C.3.

     Q.   Misconduct shall mean the commission of any act of fraud, embezzlement
or dishonesty by Optionee, any unauthorized use or disclosure by Optionee of
confidential information or trade secrets of the Corporation (or any Parent or
Subsidiary), or any other intentional misconduct by Optionee adversely affecting
the business or affairs of the Corporation (or any Parent or Subsidiary) in a
material manner. The foregoing definition shall not be deemed to be inclusive of
all the acts or omissions which the Corporation (or any Parent or Subsidiary)
may consider as grounds for the dismissal or discharge of Optionee or any other
person in the Service of the Corporation (or any Parent or Subsidiary).

     R.   1933 Act shall mean the Securities Act of 1933, as amended.

     S.   Non-Statutory Option shall mean an option not intended to satisfy the
requirements of Code Section 422.

     T.   Option shall have the meaning assigned to such term in Paragraph A.1.

     U.   Option Agreement shall mean all agreements and other documents
evidencing the Option.

     V.   Optionee shall mean the person to whom the Option is granted under the
Plan.

     W.   Owner shall mean Optionee and all subsequent holders of the Purchased
Shares who derive their chain of ownership through a Permitted Transfer from
Optionee.

     X.   Parent shall mean any corporation (other than the Corporation) in an
unbroken chain of corporations ending with the Corporation, provided each
corporation in the unbroken chain (other than the Corporation) owns, at the time
of the determination, stock possessing fifty percent (5095) or more of the total
combined voting power of all classes of stock in one of the other corporations
in such chain.

                                      6.
<PAGE>

     Y.   Permitted Transfer shall mean (i) a gratuitous transfer of the
Purchased Shares, provided and only if Optionee obtains the Corporation's prior
written consent to such transfer, (ii) a transfer of title to the Purchased
Shares effected pursuant to Optionee's will or the laws of intestate succession
following Optionee's death or (iii) a transfer to the Corporation in pledge as
security for any purchase-money indebtedness incurred by Optionee in connection
with the acquisition of the Purchased Shares.

     Z.  Plan shall mean the Corporation's. 1995 Stock Option/Stock Issuance
Plan.

     AA.  Plan Administrator shall mean either the Board or a committee of Board
members, to the extent the committee is at the time responsible for
administration of the Plan.

     AB.  Prior Purchase Agreement shall have the meaning assigned to such term
in Paragraph D.4.

     AC.  Purchased Shares shall have the meaning assigned to such term in
Paragraph A. 1.

     AD.  Recapitalization shall mean any stock split, stock dividend
recapitalization, combination of shares, exchange of shares or other change
affecting the outstanding Common Stock as a class without the Corporation's
receipt of consideration.

     AE.  Reorganization shall mean any of the following transactions;

          (i)       a merger or consolidation in which the Corporation is not
the surviving entity,

          (ii)      a sale, transfer or other disposition of all or
substantially all of the Corporation's assets,

          (iii)     a reverse merges m which the Corporation is the surviving
entity but in which the Corporation's outstanding voting securities are
transferred in whole or in part To a person or persons different from the
persons holding those securities immediately prior to the merger, or

          (iv)      any transaction effected primarily to change the state in
which the Corporation is incorporated or to create a holding company structure.

     AF.  Repurchase Right shall mean the right granted to the Corporation in
accordance with Article D.

     AG.  SEC shall mean the Securities and Exchange Commission.

     AH.  Service shall mean Optionee's provision of services to the Corporation
(or any Parent or Subsidiary) in the capacity of an employee, subject to the
control and direction of the employer entity as to both the work to be performed
and the manner and method of performance, a non-employee member of the board of
directors or a consultant or independent advisor,

                                      7.
<PAGE>

     AI.  Subsidiary shall mean any corporation (other than the Corporation) in
an unbroken chain of corporations beginning with the Corporation, provided each
corporation (other than the last corporation) in the unbroken chain owns. at the
time of the determination, stock possessing fifty percent (50%) or more of the
total combined voting power of all classes of stock in one of the other
corporations in such chain.

     AJ.  Target Shares shall have the meaning assigned to such term in
Paragraph E.2,

     AK.  Vesting Schedule shall mean the vesting schedule specified in the
Grant Notice, subject to the acceleration provisions upon a Corporate
Transaction or an Involuntary Termination following a Corporate Transaction.

     AL.  Unvested Shares shall have the meaning assigned to such term in
Paragraph D.1.

                                      8.
<PAGE>

                                   EXHIBIT C

                     1995 STOCK-OPTION/STOCK ISSUANCE PLAN

                                      1.


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