CISCO SYSTEMS INC
S-8, 1999-03-11
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>   1
     As filed with the Securities and Exchange Commission on March 11, 1999
                                                 Registration No. 333-         
 ===============================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                 ---------------
                                    FORM S-8
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                                 ---------------
                               CISCO SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)

             CALIFORNIA                                   77-0059951
      (State or other jurisdiction             (IRS Employer Identification No.)
     of incorporation or organization)

             170 WEST TASMAN DRIVE, SAN JOSE, CALIFORNIA 95134-1706
               (Address of principal executive offices) (Zip Code)
                                 ---------------
                     PIPELINKS, INC. 1997 STOCK OPTION PLAN

                             IMANAGE 1997 STOCK PLAN

          CERTAIN OPTION GRANTS TO MR. DIVATIA, MR. SHAH AND MR. KILLER

                              ---------------------
                            (Full title of the Plans)

                                 ---------------
                                JOHN T. CHAMBERS
                 PRESIDENT, CHIEF EXECUTIVE OFFICER AND DIRECTOR
                               CISCO SYSTEMS, INC.
             170 WEST TASMAN DRIVE, SAN JOSE, CALIFORNIA 95134-1706
                     (Name and address of agent for service)
                                 (408) 526-4000
          (Telephone number, including area code, of agent for service)
                                 ---------------
<TABLE>
<CAPTION>
                                     CALCULATION OF REGISTRATION FEE
===========================================================================================================================
                                                                         Proposed          Proposed
               Title of                                                   Maximum           Maximum
              Securities                            Amount               Offering         Aggregate            Amount of
                 to be                               to be                 Price            Offering          Registration
              Registered                        Registered(1)            per Share           Price                 Fee
              ----------                        -------------            ---------           -----             ------------

<S>                                            <C>                      <C>              <C>                     <C>      
PipeLinks,  Inc. 1997 Stock Option Plan
Common Stock                                   242,086 shares           $15.84(2)        $3,834,642.24(2)        $1,066.03

iManage 1997 Stock Plan
Common Stock                                       732 shares            $9.40(2)            $6,880.80(2)            $1.91

Stock  Option  Grant  To  Mr. Divatia
Common Stock                                     1,253 shares           $22.45(3)           $28,129.85(3)            $7.82

Stock Option Grant to Mr. Shah
Common Stock                                     6,516 shares           $22.45(3)          $146,284.20(3)           $40.67

Stock  Option  Grant  to  Mr. Killer
Common Stock                                       801 shares           $22.45(3)           $17,982.45(3)            $5.00

                                                                                   Aggregate Registration Fee $1,121.43

===========================================================================================================================
</TABLE>

(1)     This Registration Statement shall also cover any additional shares of
        Registrant's Common Stock which become issuable under the PipeLinks,
        Inc. 1997 Stock Option Plan, the iManage 1997 Stock Plan, the Stock
        Option Grant to Mr. Divatia, the Stock Option Grant to Mr. Killer, or
        the Stock Option Grant to 

<PAGE>   2


        Mr. Shah by reason of any stock dividend, stock split, recapitalization
        or other similar transaction effected without the Registrant's receipt
        of consideration which results in an increase in the number of the
        Registrant's outstanding shares of Common Stock.

(2)     Calculated solely for purposes of this offering under Rule 457(h) of the
        Securities Act of 1933, as amended, on the basis of the weighted average
        exercise price of the outstanding options.

(3)     Calculated solely for purposes of this offering under Rule 457(h) of the
        Securities Act of 1933, as amended, on the basis of the exercise price
        of the option grant to the listed individual.


<PAGE>   3


                                           PART II

                      INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

               Cisco Systems, Inc. (the "Registrant") hereby incorporates by
reference into this Registration Statement the following documents previously
filed with the Securities and Exchange Commission (the "Commission"):

        (a)    The Registrant's Annual Report on Form 10-K for the fiscal year
               ended July 25, 1998 filed with the Commission on September 25,
               1998, pursuant to Section 13 of the Securities Exchange Act of
               1934, as amended (the "1934 Act");

        (b)    The Registrant's Current Reports on Form 8-K filed with the
               Commission on October 13, 1998, November 20, 1998 (for period
               date November 2, 1998) and November 20, 1998 (for period date
               November 4, 1998);

        (c)    The Registrant's Quarterly Reports on Form 10-Q for the periods
               ending October 24, 1998 and January 23, 1999 filed with the 
               Commission on December 8, 1998 and March 9, 1999, respectively;

        (d)    The Registrant's Registration Statement No. 000-18225 on Form 8-A
               filed with Commission on January 11, 1990, together with
               Amendment No. 1 on Form 8-A/A filed with the Commission on
               February 15, 1990, and including any other amendments or reports
               filed for the purpose of updating such description, in which
               there is described the terms, rights and provisions applicable to
               the Registrant's Common Stock and;

        (e)    The Registrant's Registration Statement No. 000-18225 on Form 8-A
               filed with the Commission on June 11, 1998, including any
               amendments or reports filed for the purpose of updating such
               description, in which there is described the terms, rights and
               provisions applicable to the Registrant's Preferred Stock
               Purchase Rights.

               All reports and definitive proxy or information statements filed
pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after the date of
this Registration Statement and prior to the filing of a post-effective
amendment which indicates that all securities offered hereby have been sold or
which de-registers all securities then remaining unsold shall be deemed to be
incorporated by reference into this Registration Statement and to be a part
hereof from the date of filing of such documents. Any statement contained in a
document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Registration Statement
to the extent that a statement contained herein or in any subsequently filed
document which also is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Registration Statement.

Item 4.  Description of Securities

               Not Applicable.

Item 5.  Interests of Named Experts and Counsel

               Not Applicable.

Item 6.  Indemnification of Directors and Officers

               Section 317 of the California Corporations Code authorizes a
court to award, or a corporation's Board of Directors to grant, indemnity to
directors and officers in terms sufficiently broad to permit indemnification
(including reimbursement of expenses incurred) under certain circumstances for
liabilities arising under the Securities Act of 1933, as amended, (the "1933
Act"). The Registrant's Restated Articles of Incorporation, as amended, and
Amended and Restated Bylaws provide for indemnification of its directors,
officers, employees and 

                                      II-1

<PAGE>   4

other agents to the maximum extent permitted by the California Corporations
Code. In addition, the Registrant has entered into Indemnification Agreements
with each of its directors and officers.

Item 7.  Exemption from Registration Claimed

               Not Applicable.

Item 8.  Exhibits
<TABLE>
<CAPTION>
Exhibit Number Exhibit
- -------------- -------
<S>            <C>
4              Instruments Defining the Rights of Stockholders. Reference is
               made to Registrant's Registration Statements No. 000-18225 on
               Form 8-A, together with the amendments and exhibits thereto,
               which are incorporated herein by reference pursuant to Items 3(d)
               and 3(e).

5              Opinion and consent of Brobeck, Phleger & Harrison LLP.

23.1           Consent of PricewaterhouseCoopers LLP, Independent Accountants.

23.2           Consent of Brobeck, Phleger & Harrison LLP is contained in
               Exhibit 5.

24             Power of Attorney. Reference is made to page II-4 of this
               Registration Statement.

99.1           PipeLinks, Inc. 1997 Stock Option Plan.

99.2           Form of Incentive Stock Option Agreement.

99.3           Form of Nonstatutory Stock Option Agreement.

99.4           iManage 1997 Stock Plan.

99.5           Form of Stock Option Agreement.

99.6           Form of Option Assumption Agreement- Pipelinks Plan.

99.7           Form of Option Assumption Agreement- iManage Plan.

99.8           Form of Option Assumption Agreement- grants outside option plan.

99.9           Form of Stock Option Agreement- grants outside option plan.
</TABLE>

Item 9.  Undertakings

               A. The undersigned Registrant hereby undertakes: (1) 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 1933 Act, (ii) to reflect in the prospectus any facts
or events arising after the effective date of this 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 this
Registration Statement and (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in this
Registration Statement; provided, however, that clauses (1)(i) and (1)(ii) shall
not apply if the information required to be included in a post-effective
amendment by those clauses is contained in periodic reports filed by the
Registrant pursuant to Section 13 or Section 15(d) of the 1934 Act that are
incorporated by reference into this Registration Statement; (2) that for the
purpose of determining any liability under the 1933 Act each such post-effective
amendment shall be deemed to be a new registration statement relating to the
securities offered therein and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof; and (3) 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 PipeLinks, Inc.
1997 Stock Option Plan, iManage 1997 Stock Plan, Stock Option Grant to Mr.
Divatia, Stock Option Grant to Mr. Shah, or the Stock Option Grant to Mr.
Killer.

               B. The undersigned Registrant hereby undertakes that, for
purposes of determining any liability under the 1933 Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
1934 Act that is incorporated by reference into this Registration Statement
shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

               C. Insofar as indemnification for liabilities arising under the
1933 Act may be permitted to directors, officers or controlling persons of the
Registrant pursuant to the indemnification provisions summarized in Item 6 or
otherwise, the Registrant has been advised that, in the opinion of the
Commission, such indemnification is against public policy as expressed in the
1933 Act and is, therefore, unenforceable. In the event that a claim for

                                      II-2


<PAGE>   5

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 1933 Act and
will be governed by the final adjudication of such issue.


                                      II-3
<PAGE>   6





                                   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 San Jose, State of California on this
11th day of March, 1999.

                                   CISCO SYSTEMS, INC.


                                   By:  /s/ John T. Chambers
                                        ---------------------------------------
                                        John T. Chambers
                                        President and Chief Executive Officer

                                POWER OF ATTORNEY

               KNOW ALL PERSONS BY THESE PRESENTS, that each person whose
signature appears below constitutes and appoints John T. Chambers and Larry R.
Carter, and each of them, as such person's true and lawful attorneys-in-fact and
agents, with full power of substitution and resubstitution, for such person and
in such person's 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 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 such person
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 or her
substitutes, may lawfully do or cause to be done by virtue thereof.

               Pursuant to the requirements of the Securities Act of 1933, as
amended, this Registration Statement has been signed below by the following
persons on behalf of the Registrant and in the capacities and on the dates
indicated:

<TABLE>
<CAPTION>
Signature                        Title                                     Date
- ---------                        -----                                     ----
<S>                           <C>                                     <C>
/s/ JOHN T. CHAMBERS          President, Chief Executive              March 11, 1999
- ---------------------------   Office and Director
John T. Chambers              (Principal Executive Officer)



/s/ LARRY R. CARTER           Senior Vice President, Finance          March 11, 1999
- ---------------------------   and Administration, Chief Financial
Larry R. Carter               Officer and Secretary
                              (Principal Financial and Accounting
                              Officer)
                              

                              Chairman of the Board and               March __, 1999
- ---------------------------   Director
John P. Morgridge             


/s/ DONALD T. VALENTINE       Vice Chairman of the Board and          March 11, 1999
- ---------------------------   Director
Donald T. Valentine           
</TABLE>


                                II-4
<PAGE>   7
<TABLE>
<CAPTION>
Signature                        Title                                 Date
- ---------                        -----                                 ----
<S>                           <C>                                 <C>
                              Director                            March __, 1999
- ------------------------
James F. Gibbons




/s/ ROBERT L. PUETTE          Director                            March 11, 1999
- ------------------------
Robert L. Puette




/s/ MASAYOSHI SON             Director                            March 11, 1999
- ------------------------
Masayoshi Son



                              Director                            March __, 1999
- ------------------------
Steven M. West




                              Director                            March __, 1999
- ------------------------
Edward R. Kozel




/s/ CAROL A. BARTZ            Director                            March 11, 1999
- ------------------------
Carol A. Bartz




                              Director                            March __, 1999
- ------------------------
James C. Morgan




/s/ MARY CIRILLO              Director                            March 11, 1999
- ------------------------
Mary Cirillo




/s/ ARUN SARIN                Director                            March 11, 1999
- ------------------------
Arun Sarin
</TABLE>

                                      II-5

<PAGE>   8




                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


                                    EXHIBITS

                                       TO

                                    FORM S-8

                                     UNDER

                             SECURITIES ACT OF 1933


                              CISCO SYSTEMS, INC.



<PAGE>   9




                                  EXHIBIT INDEX
<TABLE>
<CAPTION>
Exhibit Number    Exhibit
- --------------    -------

<S>               <C>
4                 Instruments Defining the Rights of Stockholders. Reference is
                  made to Registrant's Registration Statements No. 000-18225 on
                  Form 8-A, together with the amendments and exhibits thereto,
                  which are incorporated herein by reference pursuant to Items
                  3(d) and 3(e).

5                 Opinion and consent of Brobeck, Phleger & Harrison LLP.

23.1              Consent of PricewaterhouseCoopers LLP, Independent
                  Accountants.

23.2              Consent of Brobeck, Phleger & Harrison LLP is contained in
                  Exhibit 5.

24                Power of Attorney. Reference is made to page II-4 of this
                  Registration Statement.

99.1              PipeLinks, Inc. 1997 Stock Option Plan.

99.2              Form of Incentive Stock Option Agreement.

99.3              Form of Nonstatutory Stock Option Agreement.

99.4              iManage 1997 Stock Plan.

99.5              Form of Stock Option Agreement.

99.6              Form of Option Assumption Agreement- Pipelinks Plan.

99.7              Form of Option Assumption Agreement- iManage Plan.

99.8              Form of Option Assumption Agreement- grants outside option 
                  plan.

99.9              Form of Stock Option Agreement- grants outside option plan.

</TABLE>



<PAGE>   1



                                                                       EXHIBIT 5

             OPINION AND CONSENT OF BROBECK, PHLEGER & HARRISON LLP


                                 March 11, 1999


Cisco Systems, Inc.
170 West Tasman Drive
San Jose, California  95134-1706

             Re:  Cisco Systems, Inc. - Registration Statement for Offering of
                  an Aggregate of 251,388 Shares of Common Stock

Dear Ladies and Gentlemen:

               We have acted as counsel to Cisco Systems, Inc., a California
corporation (the "Company"), in connection with the registration on Form S-8
(the "Registration Statement") under the Securities Act of 1933, as amended, of
an aggregate of 251,388 shares of common stock (the "Shares") and related stock
options under (i) the PipeLinks, Inc. 1997 Stock Option Plan and (ii) the
iManage 1997 Stock Plan (together, the "Plans"); and (iii) the Nonstatutory
Stock Option Agreement between the Company and Mr. Divatia (iv) the Nonstatutory
Stock Option Agreement between the Company and Mr. Killer and (v) the
Nonstatutory Stock Option Agreement between the Company and Mr. Shah (together,
the "Agreements").

               This opinion is being furnished in accordance with the
requirements of Item 8 of Form S-8 and Item 601(b)(5)(i) of Regulation S-K.

               We have reviewed the Company's charter documents and the
corporate proceedings taken by the Company in connection with the assumption of
the Plans and the options outstanding thereunder and the Agreements. Based on
such review, we are of the opinion that if, as and when the Shares are issued
and sold (and the consideration therefor received) pursuant to the provisions of
option agreements duly authorized under the Plans or the Agreements and in
accordance with the Registration Statement, such Shares will be duly authorized,
legally issued, fully paid and nonassessable.

               We consent to the filing of this opinion letter as Exhibit 5 to
the Registration Statement.

               This opinion letter is rendered as of the date first written
above and we disclaim any obligation to advise you of facts, circumstances,
events or developments which hereafter may be brought to our attention and which
may alter, affect or modify the opinion expressed herein. Our opinion is
expressly limited to the matters set forth above and we render no opinion,
whether by implication or otherwise, as to any other matters relating to the
Company, the Plans, the Agreements or the Shares.



                                            Very truly yours,

                                            /S/ BROBECK, PHLEGER & HARRISON LLP
                                            -----------------------------------
                                            BROBECK, PHLEGER & HARRISON LLP



<PAGE>   1




                                                                    EXHIBIT 23.1

                       

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 of Cisco Systems, Inc. for the registration of 251,388 common shares in
connection with the acquisition of PipeLinks, Inc., of our reports dated August
4, 1998, on our audits of the consolidated financial statements and financial
statement schedule of Cisco Systems, Inc. as of July 25, 1998 and July 26, 1997,
and for each of the three years in the period ended July 25, 1998 which reports
are included in Cisco Systems, Inc.'s 1998 Annual Report on Form 10-K, filed
with the Securities and Exchange Commission.




                                              /s/ PricewaterhouseCoopers LLP
                                              

                                              PricewaterhouseCoopers LLP



San Jose, California
March 10, 1999




<PAGE>   1
                                                                    EXHIBIT 99.1


                                 PIPELINKS, INC.

                             1997 STOCK OPTION PLAN


        1. ESTABLISHMENT, PURPOSE AND TERM OF PLAN.

                1.1 ESTABLISHMENt. The PipeLinks, Inc. 1997 Stock Option Plan
(the "PLAN") is hereby established effective as of June 16, 1997 (the "EFFECTIVE
DATE").

                1.2 PURPOSE. The purpose of the Plan is to advance the interests
of the Participating Company Group and its shareholders by providing an
incentive to attract, retain and reward persons performing services for the
Participating Company Group and by motivating such persons to contribute to the
growth and profitability of the Participating Company Group.

                1.3 TERM OF PLAN. The Plan shall continue in effect until the
earlier of its termination by the Board or the date on which all of the shares
of Stock available for issuance under the Plan have been issued and all
restrictions on such shares under the terms of the Plan and the agreements
evidencing Options granted under the Plan have lapsed. However, all Options
shall be granted, if at all, within ten (10) years from the earlier of the date
the Plan is adopted by the Board or the date the Plan is duly approved by the
shareholders of the Company.

        2. DEFINITIONS AND CONSTRUCTION.

                2.1 DEFINITIONS. Whenever used herein, the following terms shall
have their respective meanings set forth below:

                        (a) "BOARD" means the Board of Directors of the Company.
If one or more Committees have been appointed by the Board to administer the
Plan, "BOARD" also means such Committee(s).

                        (b) "CODE" means the Internal Revenue Code of 1986, as
amended, and any applicable regulations promulgated thereunder.

                        (c) "COMMITTEE" means the Compensation Committee or
other committee of the Board duly appointed to administer the Plan and having
such powers as shall be specified by the Board. Unless the powers of the
Committee have been specifically limited, the Committee shall have all of the
powers of the Board granted herein, including, without limitation, the power to
amend or terminate the Plan at any time, subject to the terms of the Plan and
any applicable limitations imposed by law.

                        (d) "COMPANY" means PipeLinks, Inc., a California
corporation, or any successor corporation thereto.


                                       1
<PAGE>   2


                        (e) "CONSULTANT" means any person, including an advisor,
engaged by a Participating Company to render services other than as an Employee
or a Director.

                        (f) "DIRECTOR" means a member of the Board or of the
board of directors of any other Participating Company.

                        (g) "DISABILITY" means the inability of the Optionee, in
the opinion of a qualified physician acceptable to the Company, to perform the
major duties of the Optionee's position with the Participating Company group
because of the sickness or injury of the Optionee.

                        (h) "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company and, with respect to any Incentive Stock
Option granted to such person, who is an employee for purposes of Section 422 of
the Code; provided, however, that neither service as a Director nor payment of a
director's fee shall be sufficient to constitute employment for purposes of the
Plan.

                        (i) "EXCHANGE ACT" means the Securities Exchange Act of
1934, as amended.

                        (j) "FAIR MARKET VALUE" means, as of any date, the value
of a share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                              (i) If, on such date, there is a public market for
the Stock, the Fair Market Value of a share of Stock shall be the closing sale
price of a share of Stock (or the mean of the closing bid and asked prices of a
share of Stock if the Stock is so quoted instead) as quoted on the Nasdaq
National Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                              (ii) If, on such date, there is no public market
for the Stock, the Fair Market Value of a share of Stock shall be as determined
by the Board without regard to any restriction other than a restriction which,
by its terms, will never lapse.

                        (k) "INCENTIVE STOCK OPTION" means an Option intended to
be (as set forth in the Option Agreement) and which qualifies as an incentive
stock option within the meaning of Section 422(b) of the Code.


                                       2

<PAGE>   3

                        (l) "INSIDER" means an officer or a Director of the
Company or any other person whose transactions in Stock are subject to Section
16 of the Exchange Act.

                        (m) "NONSTATUTORY STOCK OPTION" means an Option not
intended to be (as set forth in the Option Agreement) or which does not qualify
as an Incentive Stock Option.

                        (n) "OPTION" means a right to purchase Stock (subject to
adjustment as provided in Section 4.2) pursuant to the terms and conditions of
the Plan. An Option may be either an Incentive Stock Option or a Nonstatutory
Stock Option.

                        (o) "OPTION AGREEMENT" means a written agreement between
the Company and an Optionee setting forth the terms, conditions and restrictions
of the Option granted to the Optionee and any shares acquired upon the exercise
thereof.

                        (p) "OPTIONEE" means a person who has been granted one
or more Options.

                        (q) "PARENT CORPORATION" means any present or future
"parent corporation" of the Company, as defined in Section 424(e) of the Code.

                        (r) "PARTICIPATING COMPANY" means the Company or any
Parent Corporation or Subsidiary Corporation.

                        (s) "PARTICIPATING COMPANY GROUP" means, at any point in
time, all corporations collectively which are then Participating Companies.

                        (t) "RULE 16B-3" means Rule 16b-3 under the Exchange
Act, as amended from time to time, or any successor rule or regulation.

                        (u) "SECURITIES ACT" means the Securities Act of 1933,
as amended.

                        (v) "SERVICE" means an Optionee's employment or service
with the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. Furthermore,
an Optionee's Service with the Participating Company Group shall not be deemed
to have terminated if the Optionee takes any military leave, sick leave, or
other bona fide leave of absence approved by the Company; provided, however,
that if any such leave exceeds ninety (90) days, on the ninety-first (91st) day
of such leave the Optionee's Service shall be deemed to have terminated unless
the Optionee's right to return to Service with the Participating Company Group
is guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company or required by law, a leave of absence shall
not be treated as Service for purposes of determining vesting under the
Optionee's Option Agreement. The Optionee's 

                                       3


<PAGE>   4

Service shall be deemed to have terminated either upon an actual termination of
Service or upon the corporation for which the Optionee performs Service ceasing
to be a Participating Company. Subject to the foregoing, the Company, in its
sole discretion, shall determine whether the Optionee's Service has terminated
and the effective date of such termination.

                        (w) "STOCK" means the common stock of the Company, as
adjusted from time to time in accordance with Section 4.2.

                        (x) "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

                        (y) "TEN PERCENT OWNER OPTIONEE" means an Optionee who,
at the time an Option is granted to the Optionee, owns stock possessing more
than ten percent (10%) of the total combined voting power of all classes of
stock of a Participating Company within the meaning of Section 422(b)(6) of the
Code.

                2.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of the Plan. Except when otherwise indicated by the context, the
singular shall include the plural and the plural shall include the singular. Use
of the term "or" is not intended to be exclusive, unless the context clearly
requires otherwise.

        3. ADMINISTRATION.

                3.1 ADMINISTRATION BY THE BOARD. The Plan shall be administered
by the Board. All questions of interpretation of the Plan or of any Option shall
be determined by the Board, and such determinations shall be final and binding
upon all persons having an interest in the Plan or such Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, determination or election which
is the responsibility of or which is allocated to the Company herein, provided
the officer has apparent authority with respect to such matter, right,
obligation, determination or election.

                3.2 ADMINISTRATION WITH RESPECT TO INSIDERS. With respect to
participation by Insiders in the Plan, at any time that any class of equity
security of the Company is registered pursuant to Section 12 of the Exchange
Act, the Plan shall be administered in compliance with the requirements, if any,
of Rule 16b-3.

                3.3 POWERS OF THE BOARD. In addition to any other powers set
forth in the Plan and subject to the provisions of the Plan, the Board shall
have the full and final power and authority, in its sole discretion:

                        (a) to determine the persons to whom, and the time or
times at which, Options shall be granted and the number of shares of Stock to be
subject to each Option;


                                       4

<PAGE>   5

                        (b) to designate Options as Incentive Stock Options or
Nonstatutory Stock Options;

                        (c) to determine the Fair Market Value of shares of
Stock or other property;

                        (d) to determine the terms, conditions and restrictions
applicable to each Option (which need not be identical) and any shares acquired
upon the exercise thereof, including, without limitation, (i) the exercise price
of the Option, (ii) the method of payment for shares purchased upon the exercise
of the Option, (iii) the method for satisfaction of any tax withholding
obligation arising in connection with the Option or such shares, including by
the withholding or delivery of shares of stock, (iv) the timing, terms and
conditions of the exercisability of the Option or the vesting of any shares
acquired upon the exercise thereof, (v) the time of the expiration of the
Option, (vi) the effect of the Optionee's termination of Service with the
Participating Company Group on any of the foregoing, and (vii) all other terms,
conditions and restrictions applicable to the Option or such shares not
inconsistent with the terms of the Plan;

                        (e) to approve one or more forms of Option Agreement;

                        (f) to amend, modify, extend, cancel, renew, reprice or
otherwise adjust the exercise price of, or grant a new Option in substitution
for, any Option or to waive any restrictions or conditions applicable to any
Option or any shares acquired upon the exercise thereof;

                        (g) to accelerate, continue, extend or defer the
exercisability of any Option or the vesting of any shares acquired upon the
exercise thereof, including with respect to the period following an Optionee's
termination of Service with the Participating Company Group;

                        (h) to prescribe, amend or rescind rules, guidelines and
policies relating to the Plan, or to adopt supplements to, or alternative
versions of, the Plan, including, without limitation, as the Board deems
necessary or desirable to comply with the laws of, or to accommodate the tax
policy or custom of, foreign jurisdictions whose citizens may be granted
Options; and

                        (i) to correct any defect, supply any omission or
reconcile any inconsistency in the Plan or any Option Agreement and to make all
other determinations and take such other actions with respect to the Plan or any
Option as the Board may deem advisable to the extent consistent with the Plan
and applicable law.

        4. SHARES SUBJECT TO PLAN.

                4.1 MAXIMUM NUMBER OF SHARES ISSUABLE. Subject to adjustment as
provided in Section 4.2, the maximum aggregate number of shares of Stock that
may be issued 


                                       5


<PAGE>   6

under the Plan shall be Four Million Nine Hundred Nineteen Thousand Five Hundred
Eighty (4,919,580) and shall consist of authorized but unissued or reacquired
shares of Stock or any combination thereof. If an outstanding Option for any
reason expires or is terminated or canceled or shares of Stock acquired, subject
to repurchase, upon the exercise of an Option are repurchased by the Company,
the shares of Stock allocable to the unexercised portion of such Option, or such
repurchased shares of Stock, shall again be available for issuance under the
Plan. Notwithstanding the foregoing, at any such time as the offer and sale of
securities pursuant to the Plan is subject to compliance with Section 260.140.45
of Title 10 of the California Code of Regulations ("SECTION 260.140.45"), the
total number of shares of Stock issuable upon the exercise of all outstanding
Options (together with options outstanding under any other stock option plan of
the Company) and the total number of shares provided for under any stock bonus
or similar plan of the Company shall not exceed thirty percent (30%) (or such
other higher percentage limitation as may be approved by the shareholders of the
Company pursuant to Section 260.140.45) of the then outstanding shares of the
Company as calculated in accordance with the conditions and exclusions of
Section 260.140.45.

                4.2 ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event
of any stock dividend, stock split, reverse stock split, recapitalization,
combination, reclassification or similar change in the capital structure of the
Company, appropriate adjustments shall be made in the number and class of shares
subject to the Plan and to any outstanding Options and in the exercise price per
share of any outstanding Options. If a majority of the shares which are of the
same class as the shares that are subject to outstanding Options are exchanged
for, converted into, or otherwise become (whether or not pursuant to an
Ownership Change Event, as defined in Section 8.1) shares of another corporation
(the "NEW SHARES"), the Board may unilaterally amend the outstanding Options to
provide that such Options are exercisable for New Shares. In the event of any
such amendment, the number of shares subject to, and the exercise price per
share of, the outstanding Options shall be adjusted in a fair and equitable
manner as determined by the Board, in its sole discretion. Notwithstanding the
foregoing, any fractional share resulting from an adjustment pursuant to this
Section 4.2 shall be rounded up or down to the nearest whole number, as
determined by the Board, and in no event may the exercise price of any Option be
decreased to an amount less than the par value, if any, of the stock subject to
the Option. The adjustments determined by the Board pursuant to this Section 4.2
shall be final, binding and conclusive.

        5. ELIGIBILITY AND OPTION LIMITATIONS.

                5.1 PERSONS ELIGIBLE FOR OPTIONS. Options may be granted only to
Employees, Consultants, and Directors. For purposes of the foregoing sentence,
"EMPLOYEES," "CONSULTANTS" and "DIRECTORS" shall include prospective Employees,
prospective Consultants and prospective Directors to whom Options are granted in
connection with written offers of an employment or other service relationship
with the Participating Company Group. Eligible persons may be granted more than
one (1) Option.

                5.2 OPTION GRANT RESTRICTIONS. Any person who is not an Employee
on the effective date of the grant of an Option to such person may be granted
only a Nonstatutory Stock 

                                       6


<PAGE>   7

Option. An Incentive Stock Option granted to a prospective Employee upon the
condition that such person become an Employee shall be deemed granted effective
on the date such person commences service with a Participating Company, with an
exercise price determined as of such date in accordance with Section 6.1.

                5.3 FAIR MARKET VALUE LIMITATION. To the extent that options
designated as Incentive Stock Options (granted under all stock option plans of
the Participating Company Group, including the Plan) become exercisable by an
Optionee for the first time during any calendar year for stock having a Fair
Market Value greater than One Hundred Thousand Dollars ($100,000), the portion
of such options which exceeds such amount shall be treated as Nonstatutory Stock
Options. For purposes of this Section 5.3, options designated as Incentive Stock
Options shall be taken into account in the order in which they were granted, and
the Fair Market Value of stock shall be determined as of the time the option
with respect to such stock is granted. If the Code is amended to provide for a
different limitation from that set forth in this Section 5.3, such different
limitation shall be deemed incorporated herein effective as of the date and with
respect to such Options as required or permitted by such amendment to the Code.
If an Option is treated as an Incentive Stock Option in part and as a
Nonstatutory Stock Option in part by reason of the limitation set forth in this
Section 5.3, the Optionee may designate which portion of such Option the
Optionee is exercising. In the absence of such designation, the Optionee shall
be deemed to have exercised the Incentive Stock Option portion of the Option
first. Separate certificates representing each such portion shall be issued upon
the exercise of the Option.

        6. TERMS AND CONDITIONS OF OPTIONS.

               Options shall be evidenced by Option Agreements specifying the
number of shares of Stock covered thereby, in such form as the Board shall from
time to time establish. No Option or purported Option shall be a valid and
binding obligation of the Company unless evidenced by a fully executed Option
Agreement. Option Agreements may incorporate all or any of the terms of the Plan
by reference and shall comply with and be subject to the following terms and
conditions:

                6.1 EXERCISE PRICE. The exercise price for each Option shall be
established in the sole discretion of the Board; provided, however, that (a) the
exercise price per share for an Incentive Stock Option shall be not less than
the Fair Market Value of a share of Stock on the effective date of grant of the
Option, (b) the exercise price per share for a Nonstatutory Stock Option shall
be not less than eighty-five percent (85%) of the Fair Market Value of a share
of Stock on the effective date of grant of the Option, and (c) no Option granted
to a Ten Percent Owner Optionee shall have an exercise price per share less than
one hundred ten percent (110%) of the Fair Market Value of a share of Stock on
the effective date of grant of the Option. Notwithstanding the foregoing, an
Option (whether an Incentive Stock Option or a Nonstatutory Stock Option) may be
granted with an exercise price lower than the minimum exercise price set forth
above if such Option is granted pursuant to an assumption or substitution for
another option in a manner qualifying under the provisions of Section 424(a) of
the Code.


                                       7

<PAGE>   8

                6.2 EXERCISE PERIOD. Options shall be exercisable at such time
or times, or upon such event or events, and subject to such terms, conditions,
performance criteria, and restrictions as shall be determined by the Board and
set forth in the Option Agreement evidencing such Option; provided, however,
that (a) no Option shall be exercisable after the expiration of ten (10) years
after the effective date of grant of such Option, (b) no Incentive Stock Option
granted to a Ten Percent Owner Optionee shall be exercisable after the
expiration of five (5) years after the effective date of grant of such Option,
(c) no Option granted to a prospective Employee, prospective Consultant or
prospective Director may become exercisable prior to the date on which such
person commences service with a Participating Company, and (d) with the
exception of an Option granted to an officer, Director or Consultant, no Option
shall become exercisable at a rate less than twenty percent (20%) per year over
a period of five (5) years from the effective date of grant of such Option,
subject to the Optionee's continued Service.

                6.3 PAYMENT OF EXERCISE PRICE.

                        (a) FORMS OF CONSIDERATION AUTHORIZED. Except as
otherwise provided below, payment of the exercise price for the number of shares
of Stock being purchased pursuant to any Option shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of shares of Stock
owned by the Optionee having a Fair Market Value (as determined by the Company
without regard to any restrictions on transferability applicable to such stock
by reason of federal or state securities laws or agreements with an underwriter
for the Company) not less than the exercise price, (iii) by the assignment of
the proceeds of a sale or loan with respect to some or all of the shares being
acquired upon the exercise of the Option (including, without limitation, through
an exercise complying with the provisions of Regulation T as promulgated from
time to time by the Board of Governors of the Federal Reserve System) (a
"CASHLESS Exercise"), (iv) by the Optionee's promissory note in a form approved
by the Company, (v) by such other consideration as may be approved by the Board
from time to time to the extent permitted by applicable law, or (vi) by any
combination thereof. The Board may at any time or from time to time, by adoption
of or by amendment to the standard forms of Option Agreement described in
Section 7, or by other means, grant Options which do not permit all of the
foregoing forms of consideration to be used in payment of the exercise price or
which otherwise restrict one or more forms of consideration.

                        (b) TENDER OF STOCK. Notwithstanding the foregoing, an
Option may not be exercised by tender to the Company of shares of Stock to the
extent such tender of Stock would constitute a violation of the provisions of
any law, regulation or agreement restricting the redemption of the Company's
stock. Unless otherwise provided by the Board, an Option may not be exercised by
tender to the Company of shares of Stock unless such shares either have been
owned by the Optionee for more than six (6) months or were not acquired,
directly or indirectly, from the Company.

                        (c) CASHLESS EXERCISE. The Company reserves, at any and
all times, the right, in the Company's sole and absolute discretion, to
establish, decline to approve or 

                                       8


<PAGE>   9

terminate any program or procedures for the exercise of Options by means of a
Cashless Exercise.

                        (d) PAYMENT BY PROMISSORY NOTE. No promissory note shall
be permitted if the exercise of an Option using a promissory note would be a
violation of any law. Any permitted promissory note shall be on such terms as
the Board shall determine at the time the Option is granted. The Board shall
have the authority to permit or require the Optionee to secure any promissory
note used to exercise an Option with the shares of Stock acquired upon the
exercise of the Option or with other collateral acceptable to the Company.
Unless otherwise provided by the Board, if the Company at any time is subject to
the regulations promulgated by the Board of Governors of the Federal Reserve
System or any other governmental entity affecting the extension of credit in
connection with the Company's securities, any promissory note shall comply with
such applicable regulations, and the Optionee shall pay the unpaid principal and
accrued interest, if any, to the extent necessary to comply with such applicable
regulations.

                6.4 TAX WITHHOLDING. The Company shall have the right, but not
the obligation, to deduct from the shares of Stock issuable upon the exercise of
an Option, or to accept from the Optionee the tender of, a number of whole
shares of Stock having a Fair Market Value, as determined by the Company, equal
to all or any part of the federal, state, local and foreign taxes, if any,
required by law to be withheld by the Participating Company Group with respect
to such Option or the shares acquired upon the exercise thereof. Alternatively
or in addition, in its sole discretion, the Company shall have the right to
require the Optionee, through payroll withholding, cash payment or otherwise,
including by means of a Cashless Exercise, to make adequate provision for any
such tax withholding obligations of the Participating Company Group arising in
connection with the Option or the shares acquired upon the exercise thereof. The
Company shall have no obligation to deliver shares of Stock or to release shares
of Stock from an escrow established pursuant to the Option Agreement until the
Participating Company Group's tax withholding obligations have been satisfied by
the Optionee.

                6.5 REPURCHASE RIGHTS. Shares issued under the Plan may be
subject to a right of first refusal, one or more repurchase options, or other
conditions and restrictions as determined by the Board in its sole discretion at
the time the Option is granted. The Company shall have the right to assign at
any time any repurchase right it may have, whether or not such right is then
exercisable, to one or more persons as may be selected by the Company. Upon
request by the Company, each Optionee shall execute any agreement evidencing
such transfer restrictions prior to the receipt of shares of Stock hereunder and
shall promptly present to the Company any and all certificates representing
shares of Stock acquired hereunder for the placement on such certificates of
appropriate legends evidencing any such transfer restrictions.

                6.6 EFFECT OF TERMINATION OF SERVICE.

                        (a) OPTION EXERCISABILITY. Subject to earlier
termination of the Option as otherwise provided herein, an Option shall be
exercisable after an Optionee's termination of Service as follows:



                                       9

<PAGE>   10

                                (i) Disability. If the Optionee's Service with
the Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of six (6) months (or such longer period of time as determined by the
Board, in its sole discretion) after the date on which the Optionee's Service
terminated, but in any event no later than the date of expiration of the
Option's term as set forth in the Option Agreement evidencing such Option (the
"OPTION EXPIRATION DATE").

                                (ii) Death. If the Optionee's Service with the
Participating Company Group is terminated because of the death of the Optionee,
the Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee's legal
representative or other person who acquired the right to exercise the Option by
reason of the Optionee's death at any time prior to the expiration of six (6)
months (or such longer period of time as determined by the Board, in its sole
discretion) after the date on which the Optionee's Service terminated, but in
any event no later than the Option Expiration Date. The Optionee's Service shall
be deemed to have terminated on account of death if the Optionee dies within one
(1) month after the Optionee's termination of Service.

                                (iii) Other Termination of Service. If the
Optionee's Service with the Participating Company Group terminates for any
reason, except Disability or death, the Option, to the extent unexercised and
exercisable by the Optionee on the date on which the Optionee's Service
terminated, may be exercised by the Optionee within one (1) month (or such
longer period of time as determined by the Board, in its sole discretion) after
the date on which the Optionee's Service terminated, but in any event no later
than the Option Expiration Date.

                        (b) EXTENSION IF EXERCISE PREVENTED BY LAW.
Notwithstanding the foregoing, if the exercise of an Option within the
applicable time periods set forth in Section 6.6(a) is prevented by the
provisions of Section 12 below, the Option shall remain exercisable until one
(1) month after the date the Optionee is notified by the Company that the Option
is exercisable, but in any event no later than the Option Expiration Date.

                        (c) EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 6.6(a) of shares acquired upon the exercise of the Option would
subject the Optionee to suit under Section 16(b) of the Exchange Act, the Option
shall remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date.

        7. STANDARD FORMS OF OPTION AGREEMENT.

                7.1 INCENTIVE STOCK OPTIONS. Unless otherwise provided by the
Board at the time the Option is granted, an Option designated as an "INCENTIVE
STOCK OPTION" shall comply 

                                       10


<PAGE>   11

with and be subject to the terms and conditions set forth in the form of
Immediately Exercisable Incentive Stock Option Agreement adopted by the Board
concurrently with its adoption of the Plan and as amended from time to time.

                7.2 NONSTATUTORY STOCK OPTIONS. Unless otherwise provided by the
Board at the time the Option is granted, an Option designated as a "NONSTATUTORY
STOCK OPTION" shall comply with and be subject to the terms and conditions set
forth in the form of Immediately Exercisable Nonstatutory Stock Option Agreement
adopted by the Board concurrently with its adoption of the Plan and as amended
from time to time.

                7.3 STANDARD TERM OF OPTIONS. Except as otherwise provided in
Section 6.2 or by the Board in the grant of an Option, any Option granted
hereunder shall have a term of ten (10) years from the effective date of grant
of the Option.

                7.4 AUTHORITY TO VARY TERMS. The Board shall have the authority
from time to time to vary the terms of any of the standard forms of Option
Agreement described in this Section 7 either in connection with the grant or
amendment of an individual Option or in connection with the authorization of a
new standard form or forms; provided, however, that the terms and conditions of
any such new, revised or amended standard form or forms of Option Agreement
shall be in accordance with the terms of the Plan. Such authority shall include,
but not by way of limitation, the authority to grant Options which are not
immediately exercisable.

        8. CHANGE IN CONTROL.

                8.1 DEFINITIONS.

                        (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have
occurred if any of the following occurs with respect to the Company:

                                (i) the direct or indirect sale or exchange in a
single or series of related transactions by the shareholders of the Company of
more than fifty percent (50%) of the voting stock of the Company;

                                (ii) a merger or consolidation in which the
Company is a party;

                                (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                                (iv) a liquidation or dissolution of the
Company.

                        (b) A "CHANGE IN CONTROL" shall mean an Ownership Change
Event or a series of related Ownership Change Events (collectively, the
"TRANSACTION") wherein the shareholders of the Company immediately before the
Transaction do not retain immediately after the Transaction, in substantially
the same proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial 


                                       11



<PAGE>   12

ownership of more than fifty percent (50%) of the total combined voting power of
the outstanding voting stock of the Company or the corporation or corporations
to which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

                8.2 EFFECT OF CHANGE IN CONTROL ON OPTIONS. In the event of a
Change in Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under
outstanding Options or substitute for outstanding Options substantially
equivalent options for the Acquiring Corporation's stock. For purposes of this
Section 8.2, an Option shall be deemed assumed if, following the Change in
Control, the Option confers the right to purchase in accordance with its terms
and conditions, for each share of Stock subject to the Option immediately prior
to the Change in Control, the consideration (whether stock, cash or other
securities or property) to which a holder of a share of Stock on the effective
date of the Change in Control was entitled. Any Options which are neither
assumed or substituted for by the Acquiring Corporation in connection with the
Change in Control nor exercised as of the date of the Change in Control shall
terminate and cease to be outstanding effective as of the date of the Change in
Control. Notwithstanding the foregoing, shares acquired upon exercise of an
Option prior to the Change in Control and any consideration received pursuant to
the Change in Control with respect to such shares shall continue to be subject
to all applicable provisions of the Option Agreement evidencing such Option
except as otherwise provided in such Option Agreement. Furthermore,
notwithstanding the foregoing, if the corporation the stock of which is subject
to the outstanding Options immediately prior to an Ownership Change Event
described in Section 8.1(a)(i) constituting a Change in Control is the surviving
or continuing corporation and immediately after such Ownership Change Event less
than fifty percent (50%) of the total combined voting power of its voting stock
is held by another corporation or by other corporations that are members of an
affiliated group within the meaning of Section 1504(a) of the Code without
regard to the provisions of Section 1504(b) of the Code, the outstanding Options
shall not terminate unless the Board otherwise provides in its sole discretion.

        9. PROVISION OF INFORMATION.

               At least annually, copies of the Company's balance sheet and
income statement for the just completed fiscal year shall be made available to
each Optionee and purchaser of shares of Stock upon the exercise of an Option.
The Company shall not be required to provide such information to persons whose
duties in connection with the Company assure them access to equivalent
information.


                                       12

<PAGE>   13

        10. NONTRANSFERABILITY OF OPTIONS.

               During the lifetime of the Optionee, an Option shall be
exercisable only by the Optionee or the Optionee's guardian or legal
representative. No Option shall be assignable or transferable by the Optionee,
except by will or by the laws of descent and distribution.

        11. COMPLIANCE WITH SECURITIES LAW.

               The grant of Options and the issuance of shares of Stock upon
exercise of Options shall be subject to compliance with all applicable
requirements of federal, state or foreign law with respect to such securities.
Options may not be exercised if the issuance of shares of Stock upon exercise
would constitute a violation of any applicable federal, state or foreign
securities laws or other law or regulations or the requirements of any stock
exchange or market system upon which the Stock may then be listed. In addition,
no Option may be exercised unless (a) a registration statement under the
Securities Act shall at the time of exercise of the Option be in effect with
respect to the shares issuable upon exercise of the Option or (b) in the opinion
of legal counsel to the Company, the shares issuable upon exercise of the Option
may be issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. The inability of the Company to
obtain from any regulatory body having jurisdiction the authority, if any,
deemed by the Company's legal counsel to be necessary to the lawful issuance and
sale of any shares hereunder shall relieve the Company of any liability in
respect of the failure to issue or sell such shares as to which such requisite
authority shall not have been obtained. As a condition to the exercise of any
Option, the Company may require the Optionee to satisfy any qualifications that
may be necessary or appropriate, to evidence compliance with any applicable law
or regulation and to make any representation or warranty with respect thereto as
may be requested by the Company.

        12. INDEMNIFICATION.

               In addition to such other rights of indemnification as they may
have as members of the Board or officers or employees of the Participating
Company Group, members of the Board and any officers or employees of the
Participating Company Group to whom authority to act for the Board or the
Company is delegated shall be indemnified by the Company against all reasonable
expenses, including attorneys' fees, actually and necessarily incurred in
connection with the defense of any action, suit or proceeding, or in connection
with any appeal therein, to which they or any of them may be a party by reason
of any action taken or failure to act under or in connection with the Plan, or
any right granted hereunder, and against all amounts paid by them in settlement
thereof (provided such settlement is approved by independent legal counsel
selected by the Company) or paid by them in satisfaction of a judgment in any
such action, suit or proceeding, except in relation to matters as to which it
shall be adjudged in such action, suit or proceeding that such person is liable
for gross negligence, bad faith or intentional misconduct in duties; provided,
however, that within sixty (60) days after the institution of such action, suit
or proceeding, such person shall offer to the Company, in writing, the
opportunity at its own expense to handle and defend the same.


                                       13

<PAGE>   14

        13. TERMINATION OR AMENDMENT OF PLAN.

               The Board may terminate or amend the Plan at any time. However,
subject to changes in applicable law, regulations or rules that would permit
otherwise, without the approval of the Company's shareholders, there shall be
(a) no increase in the maximum aggregate number of shares of Stock that may be
issued under the Plan (except by operation of the provisions of Section 4.2),
(b) no change in the class of persons eligible to receive Incentive Stock
Options, and (c) no other amendment of the Plan that would require approval of
the Company's shareholders under any applicable law, regulation or rule. In any
event, no termination or amendment of the Plan may adversely affect any then
outstanding Option or any unexercised portion thereof, without the consent of
the Optionee, unless such termination or amendment is required to enable an
Option designated as an Incentive Stock Option to qualify as an Incentive Stock
Option or is necessary to comply with any applicable law, regulation or rule.

        14. SHAREHOLDER APPROVAL.

               The Plan or any increase in the maximum number of shares of Stock
issuable thereunder as provided in Section 4.1 (the "MAXIMUM SHARES") shall be
approved by the shareholders of the Company within twelve (12) months of the
date of adoption thereof by the Board. Options granted prior to shareholder
approval of the Plan or in excess of the Maximum Shares previously approved by
the shareholders shall become exercisable no earlier than the date of
shareholder approval of the Plan or such increase in the Maximum Shares, as the
case may be.

        IN WITNESS WHEREOF, the undersigned Secretary of the Company certifies
that the foregoing PipeLinks, Inc. 1997 Stock Option Plan was duly adopted by
the Board on June 16, 1997 and amended by the Board on March 6, 1998.



                                    -------------------------------------
                                    Secretary

                                       14
<PAGE>   15




                                  PLAN HISTORY

<TABLE>

<S>                          <C> 
June 16, 1997                Board adopts Plan, with an initial reserve of 3,528,000 shares.

June 16, 1997                Shareholders approve Plan, with an initial reserve of 3,528,000 shares.
                             Shareholders representing no less than 2/3 of the outstanding shares entitled
                             to vote approve Plan, with an initial reserve of 3,528,000 shares and a
                             percentage limitation (exceeding 30%) for purposes of Section 260.140.45
                             determined by such initial reserve.

July 16, 1997                Board decreases share reserve by 658,000 shares, from 3,528,000 shares to
                             2,870,000 shares reserved for issuance.

March 6, 1998                Board increases shares reserve by 757,000 shares, from 2,870,000 shares to
                             3,627,000 shares reserved for issuance.

March 24, 1998               Shareholders approve share reserve increase by 757,000 shares from 2,870,000 shares
                             to 3,627,000 shares.  Shareholders representing no less than 2/3 of the outstanding 
                             shares entitled to vote approve Plan, with a new reserve of 3,627,000 shares and a percentage
                             limitation (exceeding 30%) for purposes of Section 260.140.45 determined by
                             such share reserve increase.

October 2, 1998              Board increases shares reserve by 295,000 shares, from 3,627,000 shares to
                             3,922,000 shares reserved for issuance.

October 30, 1998             Shareholders approve share reserve increase by 295,000 shares from 3,627,000
                             shares to 3,922,000 shares.  Shareholders representing no less than 2/3 of the
                             outstanding shares entitled to vote approve Plan, with a new reserve of
                             3,922,000 shares.

November 20, 1998            Board increases share reserve by 997,580 shares, from 3,922,000 to 4,919,580
                             shares reserved for issuance.

December 1, 1998             Shareholders approve share reserve increase by 997,580 shares from 3,922,000
                             shares.  Shareholders representing a majority of the outstanding shares
                             entitled to vote approve Plan, with a new reserve of 4,191,580 shares.

</TABLE>



<PAGE>   1
                                                                    EXHIBIT 99.2


THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE NOT BEEN QUALIFIED
WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE
ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE
CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE
OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF
THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT
ARE EXPRESSLY CONDITIONED UPON SUCH QUALIFICATION BEING OBTAINED, UNLESS THE
SALE IS SO EXEMPT.

THE SECURITY REPRESENTED BY THIS CERTIFICATE HAS BEEN ACQUIRED FOR INVESTMENT
AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF.
NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION
STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933


                                 PIPELINKS, INC.
                             1997 STOCK OPTION PLAN
                             IMMEDIATELY EXERCISABLE
                        INCENTIVE STOCK OPTION AGREEMENT


        THIS IMMEDIATELY EXERCISABLE INCENTIVE STOCK OPTION AGREEMENT (the
"OPTION AGREEMENT") is made and entered into as of                   , 19 , by 
and between PipeLinks, Inc. and                       (the "OPTIONEE").

        The Company has granted to the Optionee pursuant to the PipeLinks, Inc.
1997 Stock Option Plan (the "PLAN") an option to purchase certain shares of
Stock, upon the terms and conditions set forth in this Option Agreement (the
"OPTION"). The Option shall in all respects be subject to the terms and
conditions of the Plan, the provisions of which are incorporated herein by
reference.

        1. DEFINITIONS AND CONSTRUCTION.

                1.1 DEFINITIONS. Unless otherwise defined herein, capitalized
terms shall have the meanings assigned to such terms in the Plan. Whenever used
herein, the following terms shall have their respective meanings set forth
below:

                        (a) "DATE OF OPTION GRANT" means                , 19 .

                        (b) "NUMBER OF OPTION SHARES" means                     
shares of Stock, as adjusted from time to time pursuant to Section 9.



                                       1
<PAGE>   2
                        (c) "EXERCISE PRICE" means $      per share of Stock, as
adjusted from time to time pursuant to Section 9.

                        (d) "INITIAL EXERCISE DATE" means the Date of Option
Grant.

                        (e) "INITIAL VESTING DATE" means the date occurring one
(1) year after (check one):

                               [ ] the Date of Option Grant.

                               [ ]               , 19      .

                        (f) "VESTED RATIO" means, on any relevant date, the
ratio determined as follows:
<TABLE>
<CAPTION>

                                                                                Vested Ratio
                                                                                ------------
<S>                                                                             <C>
               Prior to Initial Vesting Date                                           0

               On Initial Vesting Date, provided the Optionee's                      1/4
               Service has not terminated prior to such date

               Plus

               For each full month of the Optionee's continuous Service             1/48 
               from the Initial Vesting Date until the Vested Ratio equals 
               1/1, an additional
</TABLE>

                        (g) "OPTION EXPIRATION DATE" means the date ten (10)
years after the Date of Option Grant.

                        (h) "COMPANY" means PipeLinks, Inc., a California
corporation, or any successor corporation thereto.

                        (i) "SERVICE" means the Optionee's employment or service
with the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. Furthermore,
the Optionee's Service with the Participating Company Group shall not be deemed
to have 

                                       2


<PAGE>   3

terminated if the Optionee takes any military leave, sick leave, or other bona
fide leave of absence approved by the Company; provided, however, that if any
such leave exceeds ninety (90) days, on the ninety-first (91st) day of such
leave the Optionee's Service shall be deemed to have terminated unless the
Optionee's right to return to Service with the Participating Company Group is
guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company or required by law, a leave of absence shall
not be treated as Service for purposes of determining the Optionee's Vested
Ratio. The Optionee's Service shall be deemed to have terminated either upon an
actual termination of Service or upon the corporation for which the Optionee
performs Service ceasing to be a Participating Company. Subject to the
foregoing, the Company, in its sole discretion, shall determine whether the
Optionee's Service has terminated and the effective date of such termination.
(NOTE: If the Option is exercised more than three (3) months after the date on
which the Optionee ceased to be an Employee (other than by reason of death or a
permanent and total disability as defined in Section 22(e)(3) of the Code), the
Option will be treated as a Nonstatutory Stock Option and not as an Incentive
Stock Option to the extent required by Section 422 of the Code.)

                1.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement. Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular. Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

        2. TAX CONSEQUENCES.

                2.1 STATUS TAX OF OPTION. This Option is intended to be an
Incentive Stock Option within the meaning of Section 422(b) of the Code, but the
Company does not represent or warrant that this Option qualifies as such. The
Optionee should consult with the Optionee's own tax advisor regarding the tax
effects of this Option and the requirements necessary to obtain favorable income
tax treatment under Section 422 of the Code, including, but not limited to,
holding period requirements. (NOTE: If the aggregate Exercise Price of the
Option (that is, the Exercise Price multiplied by the Number of Option Shares)
plus the aggregate exercise price of any other Incentive Stock Options held by
the Optionee (whether granted pursuant to the Plan or any other stock option
plan of the Participating Company Group) is greater than One Hundred Thousand
Dollars ($100,000), the Optionee should contact the Chief Financial Officer of
the Company to ascertain whether the entire Option qualifies as an Incentive
Stock Option.)

                2.2 ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, (b) the Optionee is an Insider and, 


                                       3


<PAGE>   4

under certain circumstances, exercises the Option within six (6) months of the
Date of Option Grant (if a class of equity security of the Company is registered
under Section 12 of the Exchange Act), or (c) the Optionee is subject to a
restriction on transfer to comply with "Pooling-of-Interests Accounting" rules.
Failure to file an election under Section 83(b), if appropriate, may result in
adverse tax consequences to the Optionee. The Optionee acknowledges that the
Optionee has been advised to consult with a tax advisor prior to the exercise of
the Option regarding the tax consequences to the Optionee of the exercise of the
Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE
DATE ON WHICH THE OPTIONEE PURCHASES SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. THE OPTIONEE ACKNOWLEDGES THAT TIMELY FILING OF A SECTION 83(b)
ELECTION IS THE OPTIONEE'S SOLE RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS
THE COMPANY OR ITS REPRESENTATIVE TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

        3. ADMINISTRATION.

               All questions of interpretation concerning this Option Agreement
shall be determined by the Board. All determinations by the Board shall be final
and binding upon all persons having an interest in the Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

        4. EXERCISE OF THE OPTION.

                4.1 RIGHT TO EXERCISE.

                        (a) Except as otherwise provided herein, the Option
shall be exercisable on and after the Initial Exercise Date and prior to the
termination of the Option (as provided in Section 6) in an amount not to exceed
the Number of Option Shares less the number of shares previously acquired upon
exercise of the Option, subject to the Optionee's agreement that any shares
purchased upon exercise are subject to the Company's repurchase rights set forth
in Section 11 and Section 12. Notwithstanding the foregoing, except as provided
in Section 4.1(b), the aggregate Fair Market Value of the shares of Stock with
respect to which the Optionee may exercise the Option for the first time during
any calendar year, when added to the aggregate Fair Market Value of the shares
subject to any other options designated as Incentive Stock Options granted to
the Optionee under all stock option plans of the Participating Company Group
prior to the Date of Option Grant with respect to which such options are
exercisable for the first time during the same calendar year, shall not exceed
One Hundred Thousand Dollars ($100,000). For purposes of the preceding sentence,
options designated as Incentive Stock Options shall be taken into account in the
order in which they were granted, and the Fair Market Value of shares of stock
shall be determined as of the time the option with respect to such shares is
granted. Such limitation on exercise shall be referred to in this Option
Agreement as the "ISO EXERCISE LIMITATION." If Section 422 of the Code is
amended to provide for a different limitation from that set forth in this
Section 4.1(a), the ISO Exercise Limitation shall be deemed 


                                       4


<PAGE>   5

amended effective as of the date required or permitted by such amendment to the
Code. The ISO Exercise Limitation shall terminate upon the earlier of (i) the
Optionee's termination of Service, (ii) the day immediately prior to the
effective date of a Change in Control in which the Option is not assumed or
substituted for by the Acquiring Corporation as provided in Section 8, or (iii)
the day ten (10) days prior to the Option Expiration Date. Upon such termination
of the ISO Exercise Limitation, the Option shall be deemed a Nonstatutory Stock
Option to the extent of the number of shares subject to the Option which would
otherwise exceed the ISO Exercise Limitation.

                        (b) Notwithstanding any other provision of this Option
Agreement, if compliance with the ISO Exercise Limitation as set forth in
Section 4.1(a) will result in the exercisability of any Vested Shares (as
defined in Section 11.2) being delayed more than thirty (30) days beyond the
date such shares become Vested Shares (the "VESTING DATE"), the Option shall be
deemed to be two (2) options. The first option shall be for the maximum portion
of the Number of Option Shares that can comply with the ISO Exercise Limitation
without causing the Option to be unexercisable in the aggregate as to Vested
Shares on the Vesting Date for such shares. The second option, which shall not
be treated as an Incentive Stock Option as described in section 422(b) of the
Code, shall be for the balance of the Number of Option Shares; that is, those
such shares which, on the respective Vesting Date for such shares, would be
unexercisable if included in the first option and thereby made subject to the
ISO Exercise Limitation. Shares treated as subject to the second option shall be
exercisable on the same terms and at the same time as set forth in this Option
Agreement; provided, however, that (i) the second sentence of Section 4.1(a)
shall not apply to the second option and (ii) each such share shall become a
Vested Share on the Vesting Date such share must first be allocated to the
second option pursuant to the preceding sentence. Unless the Optionee
specifically elects to the contrary in the Optionee's written notice of
exercise, the first option shall be deemed to be exercised first to the maximum
possible extent and then the second option shall be deemed to be exercised.

                4.2 METHOD OF EXERCISE. Exercise of the Option shall be by
written notice to the Company which must state the election to exercise the
Option, the number of whole shares of Stock for which the Option is being
exercised and such other representations and agreements as to the Optionee's
investment intent with respect to such shares as may be required pursuant to the
provisions of this Option Agreement. The written notice must be signed by the
Optionee and must be delivered in person, by certified or registered mail,
return receipt requested, by confirmed facsimile transmission, or by such other
means as the Company may permit, to the Chief Financial Officer of the Company,
or other authorized representative of the Participating Company Group, prior to
the termination of the Option as set forth in Section 6, accompanied by (i) full
payment of the aggregate Exercise Price for the number of shares of Stock being
purchased and (ii) an executed copy, if required herein, of the then current
form of escrow agreement referenced below. The Option shall be deemed to be
exercised upon receipt by the Company of such written notice, the aggregate
Exercise Price, and, if required by the Company, such executed agreement.

                4.3 PAYMENT OF EXERCISE PRICE.

                                       5

<PAGE>   6

                        (a) FORMS OF CONSIDERATION AUTHORIZED. Except as
otherwise provided below, payment of the aggregate Exercise Price for the number
of shares of Stock for which the Option is being exercised shall be made (i) in
cash, by check, or cash equivalent, (ii) by tender to the Company of whole
shares of Stock owned by the Optionee having a Fair Market Value (as determined
by the Company without regard to any restrictions on transferability applicable
to such stock by reason of federal or state securities laws or agreements with
an underwriter for the Company) not less than the aggregate Exercise Price,
(iii) by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by
any combination of the foregoing.

                        (b) TENDER OF STOCK. Notwithstanding the foregoing, the
Option may not be exercised by tender to the Company of shares of Stock to the
extent such tender of Stock would constitute a violation of the provisions of
any law, regulation or agreement restricting the redemption of the Company's
stock. The Option may not be exercised by tender to the Company of shares of
Stock unless such shares either have been owned by the Optionee for more than
six (6) months or were not acquired, directly or indirectly, from the Company.

                        (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

                4.4 TAX WITHHOLDING. At the time the Option is exercised, in
whole or in part, or at any time thereafter as requested by the Company, the
Optionee hereby authorizes withholding from payroll and any other amounts
payable to the Optionee, and otherwise agrees to make adequate provision for
(including by means of a Cashless Exercise to the extent permitted by the
Company), any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Participating Company Group, if any, which arise
in connection with the Option, including, without limitation, obligations
arising upon (i) the exercise, in whole or in part, of the Option, (ii) the
transfer, in whole or in part, of any shares acquired upon exercise of the
Option, (iii) the operation of any law or regulation providing for the
imputation of interest, or (iv) the lapsing of any restriction with respect to
any shares acquired upon exercise of the Option. The Optionee is cautioned that
the Option is not exercisable unless the tax withholding obligations of the
Participating Company Group are satisfied. Accordingly, the Optionee may not be
able to exercise the Option when desired even though the Option is vested, and
the Company shall have no obligation to issue a certificate for such shares or
release such shares from any escrow provided for herein.

                4.5 CERTIFICATE REGISTRATION. Except in the event the Exercise
Price is paid by means of a Cashless Exercise, the certificate for the shares as
to which the Option is exercised shall be registered in the name of the
Optionee, or, if applicable, in the names of the heirs of the Optionee.


                                       6

<PAGE>   7

                4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES.
The grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED
EVEN THOUGH THE OPTION IS VESTED. The inability of the Company to obtain from
any regulatory body having jurisdiction the authority, if any, deemed by the
Company's legal counsel to be necessary to the lawful issuance and sale of any
shares subject to the Option shall relieve the Company of any liability in
respect of the failure to issue or sell such shares as to which such requisite
authority shall not have been obtained. As a condition to the exercise of the
Option, the Company may require the Optionee to satisfy any qualifications that
may be necessary or appropriate, to evidence compliance with any applicable law
or regulation and to make any representation or warranty with respect thereto as
may be requested by the Company.

                4.7 FRACTIONAL SHARES. The Company shall not be required to
issue fractional shares upon the exercise of the Option.

        5. NONTRANSFERABILITY OF THE OPTION.

               The Option may be exercised during the lifetime of the Optionee
only by the Optionee or the Optionee's guardian or legal representative and may
not be assigned or transferred in any manner except by will or by the laws of
descent and distribution. Following the death of the Optionee, the Option, to
the extent provided in Section 7, may be exercised by the Optionee's legal
representative or by any person empowered to do so under the deceased Optionee's
will or under the then applicable laws of descent and distribution.

        6. TERMINATION OF THE OPTION.

               The Option shall terminate and may no longer be exercised on the
first to occur of (a) the Option Expiration Date, (b) the last date for
exercising the Option following termination of the Optionee's Service as
described in Section 7, or (c) a Change in Control to the extent provided in
Section 8.


                                       7
<PAGE>   8




                6.1 OPTION EXERCISABILITY.

                        (a) DISABILITY. If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of six (6) months after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date. (NOTE: If
the Option is exercised more than three (3) months after the date on which the
Optionee's Service as an Employee terminated as a result of a Disability other
than a permanent and total disability as defined in Section 22(e)(3) of the
Code, the Option will be treated as a Nonstatutory Stock Option and not as an
Incentive Stock Option to the extent required by Section 422 of the Code.)

                        (b) DEATH. If the Optionee's Service with the
Participating Company Group is terminated because of the death of the Optionee,
the Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee's legal
representative or other person who acquired the right to exercise the Option by
reason of the Optionee's death at any time prior to the expiration of six (6)
months after the date on which the Optionee's Service terminated, but in any
event no later than the Option Expiration Date. The Optionee's Service shall be
deemed to have terminated on account of death if the Optionee dies within one
(1) month after the Optionee's termination of Service.

                        (c) OTHER TERMINATION OF SERVICE. If the Optionee's
Service with the Participating Company Group terminates for any reason, except
Disability or death, the Option, to the extent unexercised and exercisable by
the Optionee on the date on which the Optionee's Service terminated, may be
exercised by the Optionee within one (1) month (or such other longer period of
time as determined by the Board, in its sole discretion) after the date on which
the Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

                6.2 ADDITIONAL LIMITATIONS ON OPTION EXERCISE. Notwithstanding
the provisions of Section 7.1, the Option may not be exercised after the
Optionee's termination of Service to the extent that the shares to be acquired
upon exercise of the Option would be subject to the Unvested Share Repurchase
Option as provided in Section 11.

                6.3 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until one (1) month after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date. The Company makes no representation as to
the tax consequences of any such delayed exercise. The Optionee should consult
with the Optionee's own tax advisor as to the tax consequences of any such
delayed exercise.

                6.4 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 7.1 of shares acquired 


                                       8


<PAGE>   9

upon the exercise of the Option would subject the Optionee to suit under Section
16(b) of the Exchange Act, the Option shall remain exercisable until the
earliest to occur of (i) the tenth (10th) day following the date on which a sale
of such shares by the Optionee would no longer be subject to such suit, (ii) the
one hundred and ninetieth (190th) day after the Optionee's termination of
Service, or (iii) the Option Expiration Date. The Company makes no
representation as to the tax consequences of any such delayed exercise. The
Optionee should consult with the Optionee's own tax advisor as to the tax
consequences of any such delayed exercise.

        7. CHANGE IN CONTROL.

                7.1 DEFINITIONS.

                        (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have
occurred if any of the following occurs with respect to the Company:

                                (i) the direct or indirect sale or exchange in a
single or series of related transactions by the shareholders of the Company of
more than fifty percent (50%) of the voting stock of the Company;

                                (ii) a merger or consolidation in which the
Company is a party; or

                                (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                                (iv) a liquidation or dissolution of the
Company.

                        (b) A "CHANGE IN CONTROL" shall mean an Ownership Change
Event or a series of related Ownership Change Events (collectively, the
"TRANSACTION") wherein the shareholders of the Company immediately before the
Transaction do not retain immediately after the Transaction, in substantially
the same proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.


                                       9

<PAGE>   10

                7.2 EFFECT OF CHANGE IN CONTROL ON OPTION. In the event of a
Change in Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent option for the
Acquiring Corporation's stock. For purposes of this Section 8.2, the Option
shall be deemed assumed if, following the Change in Control, the Option confers
the right to purchase in accordance with its terms and conditions, for each
share of Stock subject to the Option immediately prior to the Change in Control,
the consideration (whether stock, cash or other securities or property) to which
a holder of a share of Stock on the effective date of the Change in Control was
entitled. The Option shall terminate and cease to be outstanding effective as of
the date of the Change in Control to the extent that the Option is neither
assumed or substituted for by the Acquiring Corporation in connection with the
Change in Control nor exercised as of the date of the Change in Control.
Notwithstanding the foregoing, shares acquired upon exercise of the Option prior
to the Change in Control and any consideration received pursuant to the Change
in Control with respect to such shares shall continue to be subject to all
applicable provisions of this Option Agreement except as otherwise provided
herein. Furthermore, notwithstanding the foregoing, if the corporation the stock
of which is subject to the Option immediately prior to an Ownership Change Event
described in Section 8.1(a)(i) constituting a Change in Control is the surviving
or continuing corporation and immediately after such Ownership Change Event less
than fifty percent (50%) of the total combined voting power of its voting stock
is held by another corporation or by other corporations that are members of an
affiliated group within the meaning of Section 1504(a) of the Code without
regard to the provisions of Section 1504(b) of the Code, the Option shall not
terminate unless the Board otherwise provides in its sole discretion.

        8. ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.

               In the event of any stock dividend, stock split, reverse stock
split, recapitalization, combination, reclassification, or similar change in the
capital structure of the Company, appropriate adjustments shall be made in the
number, Exercise Price and class of shares of stock subject to the Option. If a
majority of the shares which are of the same class as the shares that are
subject to the Option are exchanged for, converted into, or otherwise become
(whether or not pursuant to an Ownership Change Event) shares of another
corporation (the "NEW SHARES"), the Board may unilaterally amend the Option to
provide that the Option is exercisable for New Shares. In the event of any such
amendment, the Number of Option Shares and the Exercise Price shall be adjusted
in a fair and equitable manner, as determined by the Board, in its sole
discretion. Notwithstanding the foregoing, any fractional share resulting from
an adjustment pursuant to this Section 9 shall be rounded up or down to the
nearest whole number, as determined by the Board, and in no event may the
Exercise Price be decreased to an amount less than the par value, if any, of the
stock subject to the Option. The adjustments determined by the Board pursuant to
this Section 9 shall be final, binding and conclusive.

        9. RIGHTS AS A SHAREHOLDER, EMPLOYEE OR CONSULTANT.

               The Optionee shall have no rights as a shareholder with respect
to any shares covered by the Option until the date of the issuance of a
certificate for the shares for which the 


                                       10


<PAGE>   11

Option has been exercised (as evidenced by the appropriate entry on the books of
the Company or of a duly authorized transfer agent of the Company). No
adjustment shall be made for dividends, distributions or other rights for which
the record date is prior to the date such certificate is issued, except as
provided in Section 9. If the Optionee is an Employee, the Optionee understands
and acknowledges that, except as otherwise provided in a separate, written
employment agreement between a Participating Company and the Optionee, the
Optionee's employment is "at will" and is for no specified term. Nothing in this
Option Agreement shall confer upon the Optionee any right to continue in the
Service of a Participating Company or interfere in any way with any right of the
Participating Company Group to terminate the Optionee's Service as an Employee
or Consultant, as the case may be, at any time.

        10. UNVESTED SHARE REPURCHASE OPTION.

                10.1 GRANT OF UNVESTED SHARE REPURCHASE OPTION. In the event the
Optionee's Service with the Participating Company Group is terminated for any
reason or no reason, with or without cause, or, if the Optionee, the Optionee's
legal representative, or other holder of shares acquired upon exercise of the
Option attempts to sell, exchange, transfer, pledge, or otherwise dispose of
(other than pursuant to an Ownership Change Event) any shares acquired upon
exercise of the Option which exceed the Vested Shares as defined in Section 11.2
below (the "UNVESTED SHARES"), the Company shall have the right to repurchase
the Unvested Shares under the terms and subject to the conditions set forth in
this Section 11 (the "UNVESTED SHARE REPURCHASE OPTION").

                10.2 VESTED SHARES AND UNVESTED SHARES DEFINED. The "VESTED
SHARES" shall mean, on any given date, a number of shares of Stock equal to the
Number of Option Shares multiplied by the Vested Ratio determined as of such
date and rounded down to the nearest whole share. On such given date, the
"UNVESTED SHARES" shall mean the number of shares of Stock acquired upon
exercise of the Option which exceed the Vested Shares determined as of such
date.

                10.3 EXERCISE OF UNVESTED SHARE REPURCHASE OPTION. The Company
may exercise the Unvested Share Repurchase Option by written notice to the
Optionee within sixty (60) days after (a) termination of the Optionee's Service
(or exercise of the Option, if later) or (b) the Company has received notice of
the attempted disposition of Unvested Shares. If the Company fails to give
notice within such sixty (60) day period, the Unvested Share Repurchase Option
shall terminate unless the Company and the Optionee have extended the time for
the exercise of the Unvested Share Repurchase Option. The Unvested Share
Repurchase Option must be exercised, if at all, for all of the Unvested Shares,
except as the Company and the Optionee otherwise agree.

                10.4 PAYMENT FOR SHARES AND RETURN OF SHARES TO COMPANY. The
purchase price per share being repurchased by the Company shall be an amount
equal to the Optionee's original cost per share, as adjusted pursuant to Section
9 (the "REPURCHASE PRICE"). The Company shall pay the aggregate Repurchase Price
to the Optionee in cash within thirty (30) days after the date of the written
notice to the Optionee of the Company's exercise of the


                                       11
<PAGE>   12
Unvested Share Repurchase Option. For purposes of the foregoing, cancellation of
any indebtedness of the Optionee to any Participating Company shall be treated
as payment to the Optionee in cash to the extent of the unpaid principal and any
accrued interest canceled. The shares being repurchased shall be delivered to
the Company by the Optionee at the same time as the delivery of the Repurchase
Price to the Optionee.

                10.5 ASSIGNMENT OF UNVESTED SHARE REPURCHASE OPTION. The Company
shall have the right to assign the Unvested Share Repurchase Option at any time,
whether or not such option is then exercisable, to one or more persons as may be
selected by the Company.

                10.6 OWNERSHIP CHANGE EVENT. Upon the occurrence of an Ownership
Change Event, any and all new, substituted or additional securities or other
property to which the Optionee is entitled by reason of the Optionee's ownership
of Unvested Shares shall be immediately subject to the Unvested Share Repurchase
Option and included in the terms "STOCK" and "UNVESTED SHARES" for all purposes
of the Unvested Share Repurchase Option with the same force and effect as the
Unvested Shares immediately prior to the Ownership Change Event. While the
aggregate Repurchase Price shall remain the same after such Ownership Change
Event, the Repurchase Price per Unvested Share upon exercise of the Unvested
Share Repurchase Option following such Ownership Change Event shall be adjusted
as appropriate. For purposes of determining the Vested Ratio following an
Ownership Change Event, credited Service shall include all Service with any
corporation which is a Participating Company at the time the Service is
rendered, whether or not such corporation is a Participating Company both before
and after the Ownership Change Event.

        11. RIGHT OF FIRST REFUSAL.

                11.1 GRANT OF RIGHT OF FIRST REFUSAL. Except as provided in
Section 12.7 below, in the event the Optionee, the Optionee's legal
representative, or other holder of shares acquired upon exercise of the Option
proposes to sell, exchange, transfer, pledge, or otherwise dispose of any Vested
Shares (the "TRANSFER SHARES") to any person or entity, including, without
limitation, any shareholder of the Participating Company Group, the Company
shall have the right to repurchase the Transfer Shares under the terms and
subject to the conditions set forth in this Section 12 (the "RIGHT OF FIRST
REFUSAL").

                11.2 NOTICE OF PROPOSED TRANSFER. Prior to any proposed transfer
of the Transfer Shares, the Optionee shall deliver written notice (the "TRANSFER
NOTICE") to the Company describing fully the proposed transfer, including the
number of Transfer Shares, the name and address of the proposed transferee (the
"PROPOSED TRANSFEREE") and, if the transfer is voluntary, the proposed transfer
price, and containing such information necessary to show the bona fide nature of
the proposed transfer. In the event of a bona fide gift or involuntary transfer,
the proposed transfer price shall be deemed to be the Fair Market Value of the
Transfer Shares, as determined by the Board in good faith. If the Optionee
proposes to transfer any Transfer Shares to more than one Proposed Transferee,
the Optionee shall provide a separate Transfer Notice for the proposed transfer
to each Proposed Transferee. The Transfer Notice shall be signed by both the
Optionee and the Proposed Transferee and must constitute a binding 

                                       12


<PAGE>   13

commitment of the Optionee and the Proposed Transferee for the transfer of the
Transfer Shares to the Proposed Transferee subject only to the Right of First
Refusal.

                11.3 BONA FIDE TRANSFER. If the Company determines that the
information provided by the Optionee in the Transfer Notice is insufficient to
establish the bona fide nature of a proposed voluntary transfer, the Company
shall give the Optionee written notice of the Optionee's failure to comply with
the procedure described in this Section 12, and the Optionee shall have no right
to transfer the Transfer Shares without first complying with the procedure
described in this Section 12. The Optionee shall not be permitted to transfer
the Transfer Shares if the proposed transfer is not bona fide.

                11.4 EXERCISE OF RIGHT OF FIRST REFUSAL. If the Company
determines the proposed transfer to be bona fide, the Company shall have the
right to purchase all, but not less than all, of the Transfer Shares (except as
the Company and the Optionee otherwise agree) at the purchase price and on the
terms set forth in the Transfer Notice by delivery to the Optionee of a notice
of exercise of the Right of First Refusal within thirty (30) days after the date
the Transfer Notice is delivered to the Company. The Company's exercise or
failure to exercise the Right of First Refusal with respect to any proposed
transfer described in a Transfer Notice shall not affect the Company's right to
exercise the Right of First Refusal with respect to any proposed transfer
described in any other Transfer Notice, whether or not such other Transfer
Notice is issued by the Optionee or issued by a person other than the Optionee
with respect to a proposed transfer to the same Proposed Transferee. If the
Company exercises the Right of First Refusal, the Company and the Optionee shall
thereupon consummate the sale of the Transfer Shares to the Company on the terms
set forth in the Transfer Notice within sixty (60) days after the date the
Transfer Notice is delivered to the Company (unless a longer period is offered
by the Proposed Transferee); provided, however, that in the event the Transfer
Notice provides for the payment for the Transfer Shares other than in cash, the
Company shall have the option of paying for the Transfer Shares by the present
value cash equivalent of the consideration described in the Transfer Notice as
reasonably determined by the Company. For purposes of the foregoing,
cancellation of any indebtedness of the Optionee to any Participating Company
shall be treated as payment to the Optionee in cash to the extent of the unpaid
principal and any accrued interest canceled.

                11.5 FAILURE TO EXERCISE RIGHT OF FIRST REFUSAL. If the Company
fails to exercise the Right of First Refusal in full (or to such lesser extent
as the Company and the Optionee otherwise agree) within the period specified in
Section 12.4 above, the Optionee may conclude a transfer to the Proposed
Transferee of the Transfer Shares on the terms and conditions described in the
Transfer Notice, provided such transfer occurs not later than ninety (90) days
following delivery to the Company of the Transfer Notice. The Company shall have
the right to demand further assurances from the Optionee and the Proposed
Transferee (in a form satisfactory to the Company) that the transfer of the
Transfer Shares was actually carried out on the terms and conditions described
in the Transfer Notice. No Transfer Shares shall be transferred on the books of
the Company until the Company has received such assurances, if so demanded, and
has approved the proposed transfer as bona fide. Any proposed transfer on terms
and conditions different from those described in the Transfer Notice, as well as
any subsequent proposed 

                                       13


<PAGE>   14

transfer by the Optionee, shall again be subject to the Right of First Refusal
and shall require compliance by the Optionee with the procedure described in
this Section 12.

                11.6 TRANSFEREES OF TRANSFER SHARES. All transferees of the
Transfer Shares or any interest therein, other than the Company, shall be
required as a condition of such transfer to agree in writing (in a form
satisfactory to the Company) that such transferee shall receive and hold such
Transfer Shares or interest therein subject to all of the terms and conditions
of this Option Agreement, including this Section 12 providing for the Right of
First Refusal with respect to any subsequent transfer. Any sale or transfer of
any shares acquired upon exercise of the Option shall be void unless the
provisions of this Section 12 are met.

                11.7 TRANSFERS NOT SUBJECT TO RIGHT OF FIRST REFUSAL.. The Right
of First Refusal shall not apply to any transfer or exchange of the shares
acquired upon exercise of the Option if such transfer or exchange is in
connection with an Ownership Change Event. If the consideration received
pursuant to such transfer or exchange consists of stock of a Participating
Company, such consideration shall remain subject to the Right of First Refusal
unless the provisions of Section 12.9 below result in a termination of the Right
of First Refusal.

                11.8 ASSIGNMENT OF RIGHT OF FIRST REFUSAL. The Company shall
have the right to assign the Right of First Refusal at any time, whether or not
there has been an attempted transfer, to one or more persons as may be selected
by the Company.

                11.9 EARLY TERMINATION OF RIGHT OF FIRST REFUSAL. The other
provisions of this Option Agreement notwithstanding, the Right of First Refusal
shall terminate and be of no further force and effect upon (a) the occurrence of
a Change in Control, unless the Acquiring Corporation assumes the Company's
rights and obligations under the Option or substitutes a substantially
equivalent option for the Acquiring Corporation's stock for the Option, or (b)
the existence of a public market for the class of shares subject to the Right of
First Refusal. A "PUBLIC MARKET" shall be deemed to exist if (i) such stock is
listed on a national securities exchange (as that term is used in the Exchange
Act) or (ii) such stock is traded on the over-the-counter market and prices
therefor are published daily on business days in a recognized financial journal.

        12. ESCROW.

                12.1 ESTABLISHMENT OF ESCROW. To ensure that shares subject to
the Unvested Share Repurchase Option will be available for repurchase, the
Company may require the Optionee to deposit the certificate evidencing the
shares which the Optionee purchases upon exercise of the Option with an agent
designated by the Company under the terms and conditions of escrow and security
agreements approved by the Company. If the Company does not require such deposit
as a condition of exercise of the Option, the Company reserves the right at any
time to require the Optionee to so deposit the certificate in escrow. Upon the
occurrence of an Ownership Change Event or a change, as described in Section 9,
in the character or amount of any of the outstanding stock of the corporation
the stock of which is subject to the provisions of this Option Agreement, any
and all new, substituted or additional securities or other property to 

                                       14


<PAGE>   15

which the Optionee is entitled by reason of the Optionee's ownership of shares
of Stock acquired upon exercise of the Option that remain, following such
Ownership Change Event or change described in Section 9, subject to the Unvested
Share Repurchase Option shall be immediately subject to the escrow to the same
extent as such shares of Stock immediately before such event. The Company shall
bear the expenses of the escrow.

                12.2 DELIVERY OF SHARES TO OPTIONEE. As soon as practicable
after the expiration of the Unvested Share Repurchase Option, but not more
frequently than twice each calendar year, the escrow agent shall deliver to the
Optionee the shares and any other property no longer subject to such
restrictions and no longer securing any promissory note.

                12.3 NOTICES AND PAYMENTS. In the event the shares and any other
property held in escrow are subject to the Company's exercise of the Unvested
Share Repurchase Option or the Right of First Refusal, the notices required to
be given to the Optionee shall be given to the escrow agent, and any payment
required to be given to the Optionee shall be given to the escrow agent. Within
thirty (30) days after payment by the Company, the escrow agent shall deliver
the shares and any other property which the Company has purchased to the Company
and shall deliver the payment received from the Company to the Optionee.

        13. STOCK DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT.

               If, from time to time, there is any stock dividend, stock split
or other change, as described in Section 9, in the character or amount of any of
the outstanding stock of the corporation the stock of which is subject to the
provisions of this Option Agreement, then in such event any and all new,
substituted or additional securities to which the Optionee is entitled by reason
of the Optionee's ownership of the shares acquired upon exercise of the Option
shall be immediately subject to the Unvested Share Repurchase Option and the
Right of First Refusal with the same force and effect as the shares subject to
the Unvested Share Repurchase Option and the Right of First Refusal immediately
before such event.

        14. NOTICE OF SALES UPON DISQUALIFYING DISPOSITION.

               The Optionee shall dispose of the shares acquired pursuant to the
Option only in accordance with the provisions of this Option Agreement. In
addition, the Optionee shall promptly notify the Chief Financial Officer of the
Company if the Optionee disposes of any of the shares acquired pursuant to the
Option within one (1) year after the date of the Optionee exercises all or part
of the Option or within two (2) years after the Date of Option Grant. Until such
time as the Optionee disposes of such shares in a manner consistent with the
provisions of this Option Agreement, unless otherwise expressly authorized by
the Company, the Optionee shall hold all shares acquired pursuant to the Option
in the Optionee's name (and not in the name of any nominee) for the one-year
period immediately after the exercise of the Option and the two-year period
immediately after Date of Option Grant. At any time during the one-year or
two-year periods set forth above, the Company may place a legend on any
certificate representing shares acquired pursuant to the Option requesting the
transfer agent for the Company's stock to notify the Company of any such
transfers. The obligation of the Optionee to 


                                       15




<PAGE>   16

notify the Company of any such transfer shall continue notwithstanding that a
legend has been placed on the certificate pursuant to the preceding sentence.

        15. LEGENDS.

               The Company may at any time place legends referencing the
Unvested Share Repurchase Option, the Right of First Refusal, and any applicable
federal, state or foreign securities law restrictions on all certificates
representing shares of stock subject to the provisions of this Option Agreement.
The Optionee shall, at the request of the Company, promptly present to the
Company any and all certificates representing shares acquired pursuant to the
Option in the possession of the Optionee in order to carry out the provisions of
this Section. Unless otherwise specified by the Company, legends placed on such
certificates may include, but shall not be limited to, the following:

                15.1 "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE IS MADE IN
ACCORDANCE WITH RULE 144 OR RULE 701 UNDER THE ACT, OR THE COMPANY RECEIVES AN
OPINION OF COUNSEL FOR THE HOLDER OF THESE SECURITIES REASONABLY SATISFACTORY TO
THE COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT."

                15.2 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
AN UNVESTED SHARE REPURCHASE OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE
SET FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR
SUCH HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE
PRINCIPAL OFFICE OF THIS CORPORATION."

                15.3 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
A RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE SET
FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR SUCH
HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL
OFFICE OF THIS CORPORATION."

                15.4 "THE SHARES EVIDENCED BY THIS CERTIFICATE WERE ISSUED BY
THE CORPORATION TO THE REGISTERED HOLDER UPON EXERCISE OF AN INCENTIVE STOCK
OPTION AS DEFINED IN SECTION 422 OF THE INTERNAL REVENUE CODE OF 1986, AS
AMENDED ("ISO"). IN ORDER TO OBTAIN THE PREFERENTIAL TAX TREATMENT AFFORDED TO
ISOs, THE SHARES SHOULD NOT BE TRANSFERRED PRIOR TO            . SHOULD THE 
REGISTERED HOLDER 


                                       16


<PAGE>   17

ELECT TO TRANSFER ANY OF THE SHARES PRIOR TO THIS DATE AND FOREGO ISO TAX
TREATMENT, THE TRANSFER AGENT FOR THE SHARES SHALL NOTIFY THE CORPORATION
IMMEDIATELY. THE REGISTERED HOLDER SHALL HOLD ALL SHARES PURCHASED UNDER THE
INCENTIVE STOCK OPTION IN THE REGISTERED HOLDER'S NAME (AND NOT IN THE NAME OF
ANY NOMINEE) PRIOR TO THIS DATE OR UNTIL TRANSFERRED AS DESCRIBED ABOVE."

        16. PUBLIC OFFERING.

               The Optionee hereby agrees that in the event of any underwritten
public offering of stock, including an initial public offering of stock, made by
the Company pursuant to an effective registration statement filed under the
Securities Act, the Optionee shall not offer, sell, contract to sell, pledge,
hypothecate, grant any option to purchase or make any short sale of, or
otherwise dispose of any shares of stock of the Company or any rights to acquire
stock of the Company for such period of time from and after the effective date
of such registration statement as may be established by the underwriter for such
public offering; provided, however, that such period of time shall not exceed
one hundred eighty (180) days from the effective date of the registration
statement to be filed in connection with such public offering. The foregoing
limitation shall not apply to shares registered in the public offering under the
Securities Act. The Optionee shall be subject to this Section provided and only
if the officers and directors of the Company are also subject to similar
arrangements.

        17. RESTRICTIONS ON TRANSFER OF SHARES.

               No shares acquired upon exercise of the Option may be sold,
exchanged, transferred (including, without limitation, any transfer to a nominee
or agent of the Optionee), assigned, pledged, hypothecated or otherwise disposed
of, including by operation of law, in any manner which violates any of the
provisions of this Option Agreement and, except pursuant to an Ownership Change
Event, until the date on which such shares become Vested Shares, and any such
attempted disposition shall be void. The Company shall not be required (a) to
transfer on its books any shares which will have been transferred in violation
of any of the provisions set forth in this Option Agreement or (b) to treat as
owner of such shares or to accord the right to vote as such owner or to pay
dividends to any transferee to whom such shares will have been so transferred.

        18. BINDING EFFECT.

               Subject to the restrictions on transfer set forth herein, this
Option Agreement shall inure to the benefit of and be binding upon the parties
hereto and their respective heirs, executors, administrators, successors and
assigns.

        19. TERMINATION OR AMENDMENT.

               The Board may terminate or amend the Plan or the Option at any
time; provided, however, that except as provided in Section 8.2 in connection
with a Change in Control, no such 


                                       17


<PAGE>   18

termination or amendment may adversely affect the Option or any unexercised
portion hereof without the consent of the Optionee unless such termination or
amendment is necessary to comply with any applicable law or government
regulation or is required to enable the Option to qualify as an Incentive Stock
Option. No amendment or addition to this Option Agreement shall be effective
unless in writing.

        20. NOTICES.

               Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given (except to the extent that this
Option Agreement provides for effectiveness only upon actual receipt of such
notice) upon personal delivery or upon deposit in the United States Post Office,
by registered or certified mail, with postage and fees prepaid, addressed to the
other party at the address shown below that party's signature or at such other
address as such party may designate in writing from time to time to the other
party.

        21. INTEGRATED AGREEMENT.

               This Option Agreement and the Plan constitute the entire
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein and therein and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein or therein. To the
extent contemplated herein or therein, the provisions of this Option Agreement
shall survive any exercise of the Option and shall remain in full force and
effect.

        22. APPLICABLE LAW.

               This Option Agreement shall be governed by the laws of the State
of California as such laws are applied to agreements between California
residents entered into and to be performed entirely within the State of
California.

                                     PIPELINKS, INC.



                                     By:
                                         ---------------------------------------
                                     Title:
                                           -------------------------------------

                                     Address:
                                             -----------------------------------

                                             -----------------------------------


                                       18


<PAGE>   19

        The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement, including the Unvested Share Repurchase
Option set forth in Section 11 and the Right of First Refusal set forth in
Section 12, and hereby accepts the Option subject to all of the terms and
provisions thereof. The Optionee hereby agrees to accept as binding, conclusive
and final all decisions or interpretations of the Board upon any questions
arising under this Option Agreement. The undersigned acknowledges receipt of a
copy of the Plan.


                                       OPTIONEE



Date: 
    -----------------------------      ------------------------------------
                                       Optionee Address:

                                       ------------------------------------

                                       ------------------------------------




                                       19
<PAGE>   20




                                    Optionee:
                                              ----------------------------------
                                        Date:
                                              ----------------------------------

                             IMMEDIATELY EXERCISABLE

                             INCENTIVE STOCK OPTION

                                 EXERCISE NOTICE


PipeLinks, Inc.

- ---------------------------

- ---------------------------


Attention: Chief Financial Officer

Ladies and Gentlemen:

        1. Exercise of Option. I was granted an incentive stock option (the
"OPTION") to purchase shares of the common stock of PipeLinks, Inc. (the
"COMPANY") on ___________________, 19___, pursuant to the Company's 1997 Stock
Option Plan (the "PLAN") and pursuant to the Immediately Exercisable Incentive
Stock Option Agreement dated __________________, 19___ (the "OPTION AGREEMENT").
I hereby elect to exercise the Option as to a total of __________________ shares
of the common stock of the Company (the "SHARES"), of which ________________ are
Vested Shares and ______________ are Unvested Shares as determined in accordance
with the Option Agreement.

        2. Payments. Enclosed herewith is full payment in the aggregate amount
of $_____________ (representing $_______ per share) for the Shares in the manner
set forth in the Option Agreement. I authorize payroll withholding and otherwise
will make adequate provision for foreign, federal and state tax withholding
obligations of the Company, if any.

        3. Binding Effect. I agree that the Shares are being acquired in
accordance with and subject to the terms, provisions and conditions of the
Option Agreement, including the Unvested Share Repurchase Option and the Right
of First Refusal set forth therein, to all of which I hereby expressly assent.
This Agreement shall inure to the benefit of and be binding upon the my heirs,
executors, administrators, successors and assigns. I agree to deposit the
certificate or certificates evidencing the Shares, along with a blank stock
assignment separate from certificate executed by me, with an escrow agent
designated by the Company, to be held by such escrow agent pursuant to the
Company's standard Joint Escrow Instructions, an executed copy of which I have
delivered herewith.


                                       1

<PAGE>   21

        4. Transfer. I am aware that Rule 144, promulgated under the Securities
Act, which permits limited public resale of securities acquired in a nonpublic
offering, is not currently available with respect to the Shares and, in any
event, is available only if certain conditions are satisfied. I understand that
any sale of the Shares that might be made in reliance upon Rule 144 may only be
made in limited amounts in accordance with the terms and conditions of such rule
and that a copy of Rule 144 will be delivered to me upon request.

        I agree that I will promptly notify the Chief Financial Officer of the
Company if I transfer any of the Shares acquired pursuant to the Option within
one (1) year from the date I exercise all or part of the Option or within two
(2) years of the date of grant of the Option.

        My address of record is:

          ----------------------------------------------------------------------

          ----------------------------------------------------------------------

        My Social Security Number is:   
                                     -------------------------------------------

        5. Election Under Section 83(b) of the Code. I understand and
acknowledge that if I am exercising the Option to purchase Unvested Shares
(i.e., shares that remain subject to the Company's Unvested Share Repurchase
Option), that I should consult with my tax advisor regarding the advisability of
filing with the Internal Revenue Service an election under Section 83(b) of the
Code, which must be filed no later than thirty (30) days after the date on which
I exercise the Option.

        I acknowledge that I have been advised to consult with a tax advisor
prior to the exercise of the Option regarding the tax consequences to me of
exercising the Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30
DAYS AFTER THE DATE ON WHICH I PURCHASE SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. I ACKNOWLEDGE THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS MY
SOLE RESPONSIBILITY, EVEN IF I REQUEST THE COMPANY OR ITS REPRESENTATIVES TO
FILE SUCH ELECTION ON MY BEHALF.

                                       2

<PAGE>   22

        I understand that I am purchasing the Shares pursuant to the terms of
the PipeLinks, Inc. 1997 Stock Option Plan and my Option Agreement, copies of
which I have received and carefully read and understand.

                                            Very truly yours,



                                            ------------------------------------
                                            (Signature)

                                            ------------------------------------
                                            (Optionee's Name Printed)


Receipt of the above is hereby acknowledged.

PIPELINKS, INC.

By:
   ----------------------------------
Title:
      -------------------------------
Dated:
     --------------------------------



                                       3

<PAGE>   1

                                                                    EXHIBIT 99.3

THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE NOT BEEN QUALIFIED
WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE
ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE
CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE
OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF
THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT
ARE EXPRESSLY CONDITIONED UPON SUCH QUALIFICATION BEING OBTAINED, UNLESS THE
SALE IS SO EXEMPT.

THE SECURITY REPRESENTED BY THIS CERTIFICATE HAS BEEN ACQUIRED FOR INVESTMENT
AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF.
NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION
STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.


                                 PIPELINKS, INC.
                             1997 STOCK OPTION PLAN
                             IMMEDIATELY EXERCISABLE
                       NONSTATUTORY STOCK OPTION AGREEMENT


        THIS IMMEDIATELY EXERCISABLE NONSTATUTORY STOCK OPTION AGREEMENT (the
"OPTION AGREEMENT") is made and entered into as of ____________________ , 19__,
by and between PipeLinks, Inc. and __________________ (the "OPTIONEE").

        The Company has granted to the Optionee pursuant to the PipeLinks, Inc.
1997 Stock Option Plan (the "PLAN") an option to purchase certain shares of
Stock, upon the terms and conditions set forth in this Option Agreement (the
"OPTION"). The Option shall in all respects be subject to the terms and
conditions of the Plan, the provisions of which are incorporated herein by
reference.

        1. DEFINITIONS AND CONSTRUCTION.

               1.1 DEFINITIONS. Unless otherwise defined herein, capitalized
terms shall have the meanings assigned to such terms in the Plan. Whenever used
herein, the following terms shall have their respective meanings set forth
below:

                        (a) "DATE OF OPTION GRANT" means ____________, 19__.

                        (b) "NUMBER OF OPTION SHARES" means ____________ shares
of Stock, as adjusted from time to time pursuant to Section 9.


                                       1

<PAGE>   2

                        (c) "EXERCISE PRICE" means $____ per share of Stock, as
adjusted from time to time pursuant to Section 9.

                        (d) "INITIAL EXERCISE DATE" means the later of the Date
of Option Grant or the date the Optionee's Service commences.

                        (e) "INITIAL VESTING DATE" means the date occurring one
(1) year after (check one):

                                  [ ] the Date of Option Grant.

                                  [ ] _____________ , 19__.

                        (f) "VESTED RATIO" means, on any relevant date, the
ratio determined as follows:
<TABLE>
<CAPTION>

                                                                                Vested Ratio
                                                                                ------------
<S>                                                                             <C>
               Prior to Initial Vesting Date                                           0

               On Initial Vesting Date, provided the Optionee's                      1/4
               Service has not terminated prior to such date

               Plus

               For each full month of the Optionee's continuous Service              1/48
               from the Initial Vesting Date until the Vested Ratio equals 1/1,
               an additional
</TABLE>

                        (g) "OPTION EXPIRATION DATE" means the date ten (10)
years after the Date of Option Grant.

                        (h) "COMPANY" means PipeLinks, Inc., a California
corporation, or any successor corporation thereto.

                        (i) "SERVICE" means the Optionee's employment or service
with the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. Furthermore,
the 


                                       2



<PAGE>   3

Optionee's Service with the Participating Company Group shall not be deemed to
have terminated if the Optionee takes any military leave, sick leave, or other
bona fide leave of absence approved by the Company; provided, however, that if
any such leave exceeds ninety (90) days, on the ninety-first (91st) day of such
leave the Optionee's Service shall be deemed to have terminated unless the
Optionee's right to return to Service with the Participating Company Group is
guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company or required by law, a leave of absence shall
not be treated as Service for purposes of determining the Optionee's Vested
Ratio. The Optionee's Service shall be deemed to have terminated either upon an
actual termination of Service or upon the corporation for which the Optionee
performs Service ceasing to be a Participating Company. Subject to the
foregoing, the Company, in its sole discretion, shall determine whether the
Optionee's Service has terminated and the effective date of such termination.

               1.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement. Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular. Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

        2. TAX CONSEQUENCES.

               2.1 TAX STATUS OF OPTION. This Option is intended to be a
Nonstatutory Stock Option and shall not be treated as an Incentive Stock Option
within the meaning of Section 422(b) of the Code.

               2.2 ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, (b) the Optionee is an Insider and, under
certain circumstances, exercises the Option within six (6) months of the Date of
Option Grant (if a class of equity security of the Company is registered under
Section 12 of the Exchange Act), or (c) the Optionee is subject to a restriction
on transfer to comply with "Pooling-of-Interests Accounting" rules. Failure to
file an election under Section 83(b), if appropriate, may result in adverse tax
consequences to the Optionee. The Optionee acknowledges that the Optionee has
been advised to consult with a tax advisor prior to the exercise of the Option
regarding the tax consequences to the Optionee of the exercise of the Option. AN
ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE DATE ON
WHICH THE OPTIONEE PURCHASES SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE
OPTIONEE ACKNOWLEDGES THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE
OPTIONEE'S SOLE RESPONSIBILITY, EVEN IF THE 

                                       3


<PAGE>   4

OPTIONEE REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO FILE SUCH ELECTION ON HIS
OR HER BEHALF.

        3. ADMINISTRATION.

               All questions of interpretation concerning this Option Agreement
shall be determined by the Board. All determinations by the Board shall be final
and binding upon all persons having an interest in the Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

        4. EXERCISE OF THE OPTION.

               4.1 RIGHT TO EXERCISE. Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares less the number of shares previously acquired
upon exercise of the Option, subject to the Optionee's agreement that any shares
purchased upon exercise are subject to the Company's repurchase rights set forth
in Section 11 and Section 12.

               4.2 METHOD OF EXERCISE. Exercise of the Option shall be by
written notice to the Company which must state the election to exercise the
Option, the number of whole shares of Stock for which the Option is being
exercised and such other representations and agreements as to the Optionee's
investment intent with respect to such shares as may be required pursuant to the
provisions of this Option Agreement. The written notice must be signed by the
Optionee and must be delivered in person, by certified or registered mail,
return receipt requested, by confirmed facsimile transmission, or by such other
means as the Company may permit, to the Chief Financial Officer of the Company,
or other authorized representative of the Participating Company Group, prior to
the termination of the Option as set forth in Section 6, accompanied by (i) full
payment of the aggregate Exercise Price for the number of shares of Stock being
purchased and (ii) an executed copy, if required herein, of the then current
form of escrow agreement referenced below. The Option shall be deemed to be
exercised upon receipt by the Company of such written notice, the aggregate
Exercise Price, and, if required by the Company, such executed agreement.

               4.3 PAYMENT OF EXERCISE PRICE.

                        (a) FORMS OF CONSIDERATION AUTHORIZED. Except as
otherwise provided below, payment of the aggregate Exercise Price for the number
of shares of Stock for which the Option is being exercised shall be made (i) in
cash, by check, or cash equivalent, (ii) by tender to the Company of whole
shares of Stock owned by the Optionee having a Fair Market Value (as determined
by the Company without regard to any restrictions on transferability applicable
to such stock by reason of federal or state securities laws or agreements 

                                       4


<PAGE>   5

with an underwriter for the Company) not less than the aggregate Exercise Price,
(iii) by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by
any combination of the foregoing.

                        (b) TENDER OF STOCK. Notwithstanding the foregoing, the
Option may not be exercised by tender to the Company of shares of Stock to the
extent such tender of Stock would constitute a violation of the provisions of
any law, regulation or agreement restricting the redemption of the Company's
stock. The Option may not be exercised by tender to the Company of shares of
Stock unless such shares either have been owned by the Optionee for more than
six (6) months or were not acquired, directly or indirectly, from the Company.

                        (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

               4.4 TAX WITHHOLDING. At the time the Option is exercised, in
whole or in part, or at any time thereafter as requested by the Company, the
Optionee hereby authorizes withholding from payroll and any other amounts
payable to the Optionee, and otherwise agrees to make adequate provision for
(including by means of a Cashless Exercise to the extent permitted by the
Company), any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Participating Company Group, if any, which arise
in connection with the Option, including, without limitation, obligations
arising upon (i) the exercise, in whole or in part, of the Option, (ii) the
transfer, in whole or in part, of any shares acquired upon exercise of the
Option, (iii) the operation of any law or regulation providing for the
imputation of interest, or (iv) the lapsing of any restriction with respect to
any shares acquired upon exercise of the Option. The Optionee is cautioned that
the Option is not exercisable unless the tax withholding obligations of the
Participating Company Group are satisfied. Accordingly, the Optionee may not be
able to exercise the Option when desired even though the Option is vested, and
the Company shall have no obligation to issue a certificate for such shares or
release such shares from any escrow provided for herein.

               4.5 CERTIFICATE REGISTRATION. Except in the event the Exercise
Price is paid by means of a Cashless Exercise, the certificate for the shares as
to which the Option is exercised shall be registered in the name of the
Optionee, or, if applicable, in the names of the heirs of the Optionee.

               4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES.
The grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law 


                                       5

<PAGE>   6

or regulations or the requirements of any stock exchange or market system upon
which the Stock may then be listed. In addition, the Option may not be exercised
unless (i) a registration statement under the Securities Act shall at the time
of exercise of the Option be in effect with respect to the shares issuable upon
exercise of the Option or (ii) in the opinion of legal counsel to the Company,
the shares issuable upon exercise of the Option may be issued in accordance with
the terms of an applicable exemption from the registration requirements of the
Securities Act. THE OPTIONEE IS CAUTIONED THAT THE OPTION MAY NOT BE EXERCISED
UNLESS THE FOREGOING CONDITIONS ARE SATISFIED. ACCORDINGLY, THE OPTIONEE MAY NOT
BE ABLE TO EXERCISE THE OPTION WHEN DESIRED EVEN THOUGH THE OPTION IS VESTED.
The inability of the Company to obtain from any regulatory body having
jurisdiction the authority, if any, deemed by the Company's legal counsel to be
necessary to the lawful issuance and sale of any shares subject to the Option
shall relieve the Company of any liability in respect of the failure to issue or
sell such shares as to which such requisite authority shall not have been
obtained. As a condition to the exercise of the Option, the Company may require
the Optionee to satisfy any qualifications that may be necessary or appropriate,
to evidence compliance with any applicable law or regulation and to make any
representation or warranty with respect thereto as may be requested by the
Company.

               4.7 FRACTIONAL SHARES. The Company shall not be required to issue
fractional shares upon the exercise of the Option.

        5. NONTRANSFERABILITY OF THE OPTION.

               The Option may be exercised during the lifetime of the Optionee
only by the Optionee or the Optionee's guardian or legal representative and may
not be assigned or transferred in any manner except by will or by the laws of
descent and distribution. Following the death of the Optionee, the Option, to
the extent provided in Section 7, may be exercised by the Optionee's legal
representative or by any person empowered to do so under the deceased Optionee's
will or under the then applicable laws of descent and distribution.

         6. TERMINATION OF THE OPTION.

               The Option shall terminate and may no longer be exercised on the
first to occur of (a) the Option Expiration Date, (b) the last date for
exercising the Option following termination of the Optionee's Service as
described in Section 7, or (c) a Change in Control to the extent provided in
Section 8.

         7. EFFECT OF TERMINATION OF SERVICE.

               7.1 OPTION EXERCISABILITY.

                        (a) DISABILITY. If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to 

                                       6


<PAGE>   7

the expiration of six (6) months after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date.

                        (b) DEATH. If the Optionee's Service with the
Participating Company Group is terminated because of the death of the Optionee,
the Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee's legal
representative or other person who acquired the right to exercise the Option by
reason of the Optionee's death at any time prior to the expiration of six (6)
months after the date on which the Optionee's Service terminated, but in any
event no later than the Option Expiration Date. The Optionee's Service shall be
deemed to have terminated on account of death if the Optionee dies within one
(1) month after the Optionee's termination of Service.

                        (c) OTHER TERMINATION OF SERVICE. If the Optionee's
Service with the Participating Company Group terminates for any reason, except
Disability or death, the Option, to the extent unexercised and exercisable by
the Optionee on the date on which the Optionee's Service terminated, may be
exercised by the Optionee within one (1) month (or such other longer period of
time as determined by the Board, in its sole discretion) after the date on which
the Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

               7.2 ADDITIONAL LIMITATIONS ON OPTION EXERCISE. Notwithstanding
the provisions of Section 7.1, the Option may not be exercised after the
Optionee's termination of Service to the extent that the shares to be acquired
upon exercise of the Option would be subject to the Unvested Share Repurchase
Option as provided in Section 11.

               7.3 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until one (1) month after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

               7.4 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 7.1 of shares acquired upon the exercise of the Option would
subject the Optionee to suit under Section 16(b) of the Exchange Act, the Option
shall remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date.

        8. CHANGE IN CONTROL.

               8.1 DEFINITIONS.

                        (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have
occurred if any of the following occurs with respect to the Company:


                                       7


<PAGE>   8

                                (i) the direct or indirect sale or exchange in a
single or series of related transactions by the shareholders of the Company of
more than fifty percent (50%) of the voting stock of the Company;

                                (ii) a merger or consolidation in which the
Company is a party; or

                                (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                                (iv) a liquidation or dissolution of the

Company.

                        (b) A "CHANGE IN CONTROL" shall mean an Ownership Change
Event or a series of related Ownership Change Events (collectively, the
"TRANSACTION") wherein the shareholders of the Company immediately before the
Transaction do not retain immediately after the Transaction, in substantially
the same proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

               8.2 EFFECT OF CHANGE IN CONTROL ON OPTION. In the event of a
Change in Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent option for the
Acquiring Corporation's stock. For purposes of this Section 8.2, the Option
shall be deemed assumed if, following the Change in Control, the Option confers
the right to purchase in accordance with its terms and conditions, for each
share of Stock subject to the Option immediately prior to the Change in Control,
the consideration (whether stock, cash or other securities or property) to which
a holder of a share of Stock on the effective date of the Change in Control was
entitled. The Option shall terminate and cease to be outstanding effective as of
the date of the Change in Control to the extent that the Option is neither
assumed or substituted for by the Acquiring Corporation in connection with the
Change in Control nor exercised as of the date of the Change in Control.
Notwithstanding the foregoing, shares acquired upon exercise of the Option prior
to the Change in Control and any consideration received pursuant to the Change
in Control with respect to such shares shall continue to be subject to all
applicable provisions of this Option Agreement except as otherwise provided
herein. Furthermore, notwithstanding the foregoing, if the corporation the stock
of which is subject to the Option immediately prior to an 


                                       8


<PAGE>   9

Ownership Change Event described in Section 8.1(a)(i) constituting a Change in
Control is the surviving or continuing corporation and immediately after such
Ownership Change Event less than fifty percent (50%) of the total combined
voting power of its voting stock is held by another corporation or by other
corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the Option shall not terminate unless the Board otherwise provides
in its sole discretion.

        9. ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.

               In the event of any stock dividend, stock split, reverse stock
split, recapitalization, combination, reclassification, or similar change in the
capital structure of the Company, appropriate adjustments shall be made in the
number, Exercise Price and class of shares of stock subject to the Option. If a
majority of the shares which are of the same class as the shares that are
subject to the Option are exchanged for, converted into, or otherwise become
(whether or not pursuant to an Ownership Change Event) shares of another
corporation (the "New Shares"), the Board may unilaterally amend the Option to
provide that the Option is exercisable for New Shares. In the event of any such
amendment, the Number of Option Shares and the Exercise Price shall be adjusted
in a fair and equitable manner, as determined by the Board, in its sole
discretion. Notwithstanding the foregoing, any fractional share resulting from
an adjustment pursuant to this Section 9 shall be rounded up or down to the
nearest whole number, as determined by the Board, and in no event may the
Exercise Price be decreased to an amount less than the par value, if any, of the
stock subject to the Option. The adjustments determined by the Board pursuant to
this Section 9 shall be final, binding and conclusive.

        10. RIGHTS AS A SHAREHOLDER, EMPLOYEE OR CONSULTANT.

               The Optionee shall have no rights as a shareholder with respect
to any shares covered by the Option until the date of the issuance of a
certificate for the shares for which the Option has been exercised (as evidenced
by the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company). No adjustment shall be made for dividends,
distributions or other rights for which the record date is prior to the date
such certificate is issued, except as provided in Section 9. If the Optionee is
an Employee, the Optionee understands and acknowledges that, except as otherwise
provided in a separate, written employment agreement between a Participating
Company and the Optionee, the Optionee's employment is "at will" and is for no
specified term. Nothing in this Option Agreement shall confer upon the Optionee
any right to continue in the Service of a Participating Company or interfere in
any way with any right of the Participating Company Group to terminate the
Optionee's Service as an Employee or Consultant, as the case may be, at any
time.

         11. UNVESTED SHARE REPURCHASE OPTION.

               11.1 GRANT OF UNVESTED SHARE REPURCHASE OPTION. In the event the
Optionee's Service with the Participating Company Group is terminated for any
reason or no reason, with or without cause, or, if the Optionee, the Optionee's
legal representative, or other holder of shares acquired upon exercise of the
Option attempts to sell, exchange, transfer, pledge, 

                                       9


<PAGE>   10

or otherwise dispose of (other than pursuant to an Ownership Change Event) any
shares acquired upon exercise of the Option which exceed the Vested Shares as
defined in Section 11.2 below (the "UNVESTED SHARES"), the Company shall have
the right to repurchase the Unvested Shares under the terms and subject to the
conditions set forth in this Section 11 (the "UNVESTED SHARE REPURCHASE
OPTION").

               11.2 VESTED SHARES AND UNVESTED SHARES DEFINED. The "VESTED
SHARES" shall mean, on any given date, a number of shares of Stock equal to the
Number of Option Shares multiplied by the Vested Ratio determined as of such
date and rounded down to the nearest whole share. On such given date, the
"UNVESTED SHARES" shall mean the number of shares of Stock acquired upon
exercise of the Option which exceed the Vested Shares determined as of such
date.

               11.3 EXERCISE OF UNVESTED SHARE REPURCHASE OPTION. The Company
may exercise the Unvested Share Repurchase Option by written notice to the
Optionee within sixty (60) days after (a) termination of the Optionee's Service
(or exercise of the Option, if later) or (b) the Company has received notice of
the attempted disposition of Unvested Shares. If the Company fails to give
notice within such sixty (60) day period, the Unvested Share Repurchase Option
shall terminate unless the Company and the Optionee have extended the time for
the exercise of the Unvested Share Repurchase Option. The Unvested Share
Repurchase Option must be exercised, if at all, for all of the Unvested Shares,
except as the Company and the Optionee otherwise agree.

               11.4 PAYMENT FOR SHARES AND RETURN OF SHARES TO COMPANY. The
purchase price per share being repurchased by the Company shall be an amount
equal to the Optionee's original cost per share, as adjusted pursuant to Section
9 (the "REPURCHASE PRICE"). The Company shall pay the aggregate Repurchase Price
to the Optionee in cash within thirty (30) days after the date of the written
notice to the Optionee of the Company's exercise of the Unvested Share
Repurchase Option. For purposes of the foregoing, cancellation of any
indebtedness of the Optionee to any Participating Company shall be treated as
payment to the Optionee in cash to the extent of the unpaid principal and any
accrued interest canceled. The shares being repurchased shall be delivered to
the Company by the Optionee at the same time as the delivery of the Repurchase
Price to the Optionee.

               11.5 ASSIGNMENT OF UNVESTED SHARE REPURCHASE OPTION. The Company
shall have the right to assign the Unvested Share Repurchase Option at any time,
whether or not such option is then exercisable, to one or more persons as may be
selected by the Company.

               11.6 OWNERSHIP CHANGE EVENT. Upon the occurrence of an Ownership
Change Event, any and all new, substituted or additional securities or other
property to which the Optionee is entitled by reason of the Optionee's ownership
of Unvested Shares shall be immediately subject to the Unvested Share Repurchase
Option and included in the terms "STOCK" and "UNVESTED SHARES" for all purposes
of the Unvested Share Repurchase Option with the same force and effect as the
Unvested Shares immediately prior to the Ownership Change Event. While the
aggregate Repurchase Price shall remain the same after such Ownership Change


                                       10


<PAGE>   11

Event, the Repurchase Price per Unvested Share upon exercise of the Unvested
Share Repurchase Option following such Ownership Change Event shall be adjusted
as appropriate. For purposes of determining the Vested Ratio following an
Ownership Change Event, credited Service shall include all Service with any
corporation which is a Participating Company at the time the Service is
rendered, whether or not such corporation is a Participating Company both before
and after the Ownership Change Event.

        12. RIGHT OF FIRST REFUSAL.

               12.1 GRANT OF RIGHT OF FIRST REFUSAL. Except as provided in
Section 12.7 below, in the event the Optionee, the Optionee's legal
representative, or other holder of shares acquired upon exercise of the Option
proposes to sell, exchange, transfer, pledge, or otherwise dispose of any Vested
Shares (the "TRANSFER SHARES") to any person or entity, including, without
limitation, any shareholder of the Participating Company Group, the Company
shall have the right to repurchase the Transfer Shares under the terms and
subject to the conditions set forth in this Section 12 (the "RIGHT OF FIRST
REFUSAL").

               12.2 NOTICE OF PROPOSED TRANSFER. Prior to any proposed transfer
of the Transfer Shares, the Optionee shall deliver written notice (the "TRANSFER
NOTICE") to the Company describing fully the proposed transfer, including the
number of Transfer Shares, the name and address of the proposed transferee (the
"PROPOSED TRANSFEREE") and, if the transfer is voluntary, the proposed transfer
price, and containing such information necessary to show the bona fide nature of
the proposed transfer. In the event of a bona fide gift or involuntary transfer,
the proposed transfer price shall be deemed to be the Fair Market Value of the
Transfer Shares, as determined by the Board in good faith. If the Optionee
proposes to transfer any Transfer Shares to more than one Proposed Transferee,
the Optionee shall provide a separate Transfer Notice for the proposed transfer
to each Proposed Transferee. The Transfer Notice shall be signed by both the
Optionee and the Proposed Transferee and must constitute a binding commitment of
the Optionee and the Proposed Transferee for the transfer of the Transfer Shares
to the Proposed Transferee subject only to the Right of First Refusal.

               12.3 BONA FIDE TRANSFER. If the Company determines that the
information provided by the Optionee in the Transfer Notice is insufficient to
establish the bona fide nature of a proposed voluntary transfer, the Company
shall give the Optionee written notice of the Optionee's failure to comply with
the procedure described in this Section 12, and the Optionee shall have no right
to transfer the Transfer Shares without first complying with the procedure
described in this Section 12. The Optionee shall not be permitted to transfer
the Transfer Shares if the proposed transfer is not bona fide.

               12.4 EXERCISE OF RIGHT OF FIRST REFUSAL. If the Company
determines the proposed transfer to be bona fide, the Company shall have the
right to purchase all, but not less than all, of the Transfer Shares (except as
the Company and the Optionee otherwise agree) at the purchase price and on the
terms set forth in the Transfer Notice by delivery to the Optionee of a notice
of exercise of the Right of First Refusal within thirty (30) days after the date
the Transfer Notice is delivered to the Company. The Company's exercise or
failure to exercise the Right of 

                                       11


<PAGE>   12

First Refusal with respect to any proposed transfer described in a Transfer
Notice shall not affect the Company's right to exercise the Right of First
Refusal with respect to any proposed transfer described in any other Transfer
Notice, whether or not such other Transfer Notice is issued by the Optionee or
issued by a person other than the Optionee with respect to a proposed transfer
to the same Proposed Transferee. If the Company exercises the Right of First
Refusal, the Company and the Optionee shall thereupon consummate the sale of the
Transfer Shares to the Company on the terms set forth in the Transfer Notice
within sixty (60) days after the date the Transfer Notice is delivered to the
Company (unless a longer period is offered by the Proposed Transferee);
provided, however, that in the event the Transfer Notice provides for the
payment for the Transfer Shares other than in cash, the Company shall have the
option of paying for the Transfer Shares by the present value cash equivalent of
the consideration described in the Transfer Notice as reasonably determined by
the Company. For purposes of the foregoing, cancellation of any indebtedness of
the Optionee to any Participating Company shall be treated as payment to the
Optionee in cash to the extent of the unpaid principal and any accrued interest
canceled.

               12.5 FAILURE TO EXERCISE RIGHT OF FIRST REFUSAL. If the Company
fails to exercise the Right of First Refusal in full (or to such lesser extent
as the Company and the Optionee otherwise agree) within the period specified in
Section 12.4 above, the Optionee may conclude a transfer to the Proposed
Transferee of the Transfer Shares on the terms and conditions described in the
Transfer Notice, provided such transfer occurs not later than ninety (90) days
following delivery to the Company of the Transfer Notice. The Company shall have
the right to demand further assurances from the Optionee and the Proposed
Transferee (in a form satisfactory to the Company) that the transfer of the
Transfer Shares was actually carried out on the terms and conditions described
in the Transfer Notice. No Transfer Shares shall be transferred on the books of
the Company until the Company has received such assurances, if so demanded, and
has approved the proposed transfer as bona fide. Any proposed transfer on terms
and conditions different from those described in the Transfer Notice, as well as
any subsequent proposed transfer by the Optionee, shall again be subject to the
Right of First Refusal and shall require compliance by the Optionee with the
procedure described in this Section 12.

               12.6 TRANSFEREES OF TRANSFER SHARES. All transferees of the
Transfer Shares or any interest therein, other than the Company, shall be
required as a condition of such transfer to agree in writing (in a form
satisfactory to the Company) that such transferee shall receive and hold such
Transfer Shares or interest therein subject to all of the terms and conditions
of this Option Agreement, including this Section 12 providing for the Right of
First Refusal with respect to any subsequent transfer. Any sale or transfer of
any shares acquired upon exercise of the Option shall be void unless the
provisions of this Section 12 are met.

               12.7 TRANSFERS NOT SUBJECT TO RIGHT OF FIRST REFUSAL. The Right
of First Refusal shall not apply to any transfer or exchange of the shares
acquired upon exercise of the Option if such transfer or exchange is in
connection with an Ownership Change Event. If the consideration received
pursuant to such transfer or exchange consists of stock of a Participating
Company, such consideration shall remain subject to the Right of First Refusal
unless the provisions of Section 12.9 below result in a termination of the Right
of First Refusal.


                                       12

<PAGE>   13

               12.8 ASSIGNMENT OF RIGHT OF FIRST REFUSAL. The Company shall have
the right to assign the Right of First Refusal at any time, whether or not there
has been an attempted transfer, to one or more persons as may be selected by the
Company.

               12.9 EARLY TERMINATION OF RIGHT OF FIRST REFUSAL. The other
provisions of this Option Agreement notwithstanding, the Right of First Refusal
shall terminate and be of no further force and effect upon (a) the occurrence of
a Change in Control, unless the Acquiring Corporation assumes the Company's
rights and obligations under the Option or substitutes a substantially
equivalent option for the Acquiring Corporation's stock for the Option, or (b)
the existence of a public market for the class of shares subject to the Right of
First Refusal. A "PUBLIC MARKET" shall be deemed to exist if (i) such stock is
listed on a national securities exchange (as that term is used in the Exchange
Act) or (ii) such stock is traded on the over-the-counter market and prices
therefor are published daily on business days in a recognized financial journal.

        13. ESCROW.

               13.1 ESTABLISHMENT OF ESCROW. To ensure that shares subject to
the Unvested Share Repurchase Option will be available for repurchase, the
Company may require the Optionee to deposit the certificate evidencing the
shares which the Optionee purchases upon exercise of the Option with an agent
designated by the Company under the terms and conditions of escrow and security
agreements approved by the Company. If the Company does not require such deposit
as a condition of exercise of the Option, the Company reserves the right at any
time to require the Optionee to so deposit the certificate in escrow. Upon the
occurrence of an Ownership Change Event or a change, as described in Section 9,
in the character or amount of any of the outstanding stock of the corporation
the stock of which is subject to the provisions of this Option Agreement, any
and all new, substituted or additional securities or other property to which the
Optionee is entitled by reason of the Optionee's ownership of shares of Stock
acquired upon exercise of the Option that remain, following such Ownership
Change Event or change described in Section 9, subject to the Unvested Share
Repurchase Option shall be immediately subject to the escrow to the same extent
as such shares of Stock immediately before such event. The Company shall bear
the expenses of the escrow.

               13.2 DELIVERY OF SHARES TO OPTIONEE. As soon as practicable after
the expiration of the Unvested Share Repurchase Option, but not more frequently
than twice each calendar year, the escrow agent shall deliver to the Optionee
the shares and any other property no longer subject to such restrictions and no
longer securing any promissory note.

               13.3 NOTICES AND PAYMENTS. In the event the shares and any other
property held in escrow are subject to the Company's exercise of the Unvested
Share Repurchase Option or the Right of First Refusal, the notices required to
be given to the Optionee shall be given to the escrow agent, and any payment
required to be given to the Optionee shall be given to the escrow agent. Within
thirty (30) days after payment by the Company, the escrow agent shall deliver
the shares and any other property which the Company has purchased to the Company
and shall deliver the payment received from the Company to the Optionee.


                                       13

<PAGE>   14

         14. STOCK DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT.

               If, from time to time, there is any stock dividend, stock split
or other change, as described in Section 9, in the character or amount of any of
the outstanding stock of the corporation the stock of which is subject to the
provisions of this Option Agreement, then in such event any and all new,
substituted or additional securities to which the Optionee is entitled by reason
of the Optionee's ownership of the shares acquired upon exercise of the Option
shall be immediately subject to the Unvested Share Repurchase Option and the
Right of First Refusal with the same force and effect as the shares subject to
the Unvested Share Repurchase Option and the Right of First Refusal immediately
before such event.

        15. LEGENDS.

               The Company may at any time place legends referencing the
Unvested Share Repurchase Option, the Right of First Refusal, and any applicable
federal, state or foreign securities law restrictions on all certificates
representing shares of stock subject to the provisions of this Option Agreement.
The Optionee shall, at the request of the Company, promptly present to the
Company any and all certificates representing shares acquired pursuant to the
Option in the possession of the Optionee in order to carry out the provisions of
this Section. Unless otherwise specified by the Company, legends placed on such
certificates may include, but shall not be limited to, the following:

               15.1 "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE IS MADE IN
ACCORDANCE WITH RULE 144 OR RULE 701 UNDER THE ACT, OR THE COMPANY RECEIVES AN
OPINION OF COUNSEL FOR THE HOLDER OF THESE SECURITIES REASONABLY SATISFACTORY TO
THE COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT."

               15.2 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
AN UNVESTED SHARE REPURCHASE OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE
SET FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR
SUCH HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE
PRINCIPAL OFFICE OF THIS CORPORATION."

15.3 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A RIGHT OF FIRST
REFUSAL OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE SET FORTH IN AN
AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR SUCH HOLDER'S


                                       14


<PAGE>   15

PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF
THIS CORPORATION."

        16. PUBLIC OFFERING.

               The Optionee hereby agrees that in the event of any underwritten
public offering of stock, including an initial public offering of stock, made by
the Company pursuant to an effective registration statement filed under the
Securities Act, the Optionee shall not offer, sell, contract to sell, pledge,
hypothecate, grant any option to purchase or make any short sale of, or
otherwise dispose of any shares of stock of the Company or any rights to acquire
stock of the Company for such period of time from and after the effective date
of such registration statement as may be established by the underwriter for such
public offering; provided, however, that such period of time shall not exceed
one hundred eighty (180) days from the effective date of the registration
statement to be filed in connection with such public offering. The foregoing
limitation shall not apply to shares registered in the public offering under the
Securities Act. The Optionee shall be subject to this Section provided and only
if the officers and directors of the Company are also subject to similar
arrangements.

        17. RESTRICTIONS ON TRANSFER OF SHARES.

               No shares acquired upon exercise of the Option may be sold,
exchanged, transferred (including, without limitation, any transfer to a nominee
or agent of the Optionee), assigned, pledged, hypothecated or otherwise disposed
of, including by operation of law, in any manner which violates any of the
provisions of this Option Agreement and, except pursuant to an Ownership Change
Event, until the date on which such shares become Vested Shares, and any such
attempted disposition shall be void. The Company shall not be required (a) to
transfer on its books any shares which will have been transferred in violation
of any of the provisions set forth in this Option Agreement or (b) to treat as
owner of such shares or to accord the right to vote as such owner or to pay
dividends to any transferee to whom such shares will have been so transferred.

        18. BINDING EFFECT.

               Subject to the restrictions on transfer set forth herein, this
Option Agreement shall inure to the benefit of and be binding upon the parties
hereto and their respective heirs, executors, administrators, successors and
assigns.

        19. TERMINATION OR AMENDMENT.

               The Board may terminate or amend the Plan or the Option at any
time; provided, however, that except as provided in Section 8.2 in connection
with a Change in Control, no such termination or amendment may adversely affect
the Option or any unexercised portion hereof without the consent of the Optionee
unless such termination or amendment is necessary to comply with any applicable
law or government regulation or is required to enable the Option to 

                                       15


<PAGE>   16

qualify as an Incentive Stock Option. No amendment or addition to this Option
Agreement shall be effective unless in writing.

        20. NOTICES.

               Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given (except to the extent that this
Option Agreement provides for effectiveness only upon actual receipt of such
notice) upon personal delivery or upon deposit in the United States Post Office,
by registered or certified mail, with postage and fees prepaid, addressed to the
other party at the address shown below that party's signature or at such other
address as such party may designate in writing from time to time to the other
party.

        21. INTEGRATED AGREEMENT.

               This Option Agreement and the Plan constitute the entire
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein and therein and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein or therein. To the
extent contemplated herein or therein, the provisions of this Option Agreement
shall survive any exercise of the Option and shall remain in full force and
effect.

        22. APPLICABLE LAW.

               This Option Agreement shall be governed by the laws of the State
of California as such laws are applied to agreements between California
residents entered into and to be performed entirely within the State of
California.

                                    PIPELINKS, INC.



                                    By:
                                         ----------------------------------
                                    Title:
                                          ---------------------------------
                                    Address:
                                             -------------------------------
                                             -------------------------------


                                       16

<PAGE>   17

        The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement, including the Unvested Share Repurchase
Option set forth in Section 11 and the Right of First Refusal set forth in
Section 12, and hereby accepts the Option subject to all of the terms and
provisions thereof. The Optionee hereby agrees to accept as binding, conclusive
and final all decisions or interpretations of the Board upon any questions
arising under this Option Agreement. The undersigned acknowledges receipt of a
copy of the Plan.

                                                   OPTIONEE


Date:
     ------------------------                      -----------------------------

                                                   Optionee Address:

                                                   -----------------------------

                                                   -----------------------------


                                       17

<PAGE>   18




                                                       Optionee:
                                                                ----------------
                                                       Date:
                                                              ------------------


                             IMMEDIATELY EXERCISABLE

                            NONSTATUTORY STOCK OPTION

                                 EXERCISE NOTICE


PipeLinks, Inc.
- -------------------------
- -------------------------

Attention: Chief Financial Officer

Ladies and Gentlemen:

        1. Exercise of Option. I was granted a nonstatutory stock option (the
"OPTION") to purchase shares of the common stock of PipeLinks, Inc. (the
"COMPANY") on ___________________, 19___, pursuant to the Company's 1997 Stock
Option Plan (the "PLAN") and pursuant to the Immediately Exercisable
Nonstatutory Stock Option Agreement dated __________________, 19___ (the "OPTION
AGREEMENT"). I hereby elect to exercise the Option as to a total of
__________________ shares of the common stock of the Company (the "SHARES"), of
which ________________ are Vested Shares and ______________ are Unvested Shares
as determined in accordance with the Option Agreement.

        2. Payments. Enclosed herewith is full payment in the aggregate amount
of $_____________ (representing $_______ per share) for the Shares in the manner
set forth in the Option Agreement. I authorize payroll withholding and otherwise
will make adequate provision for foreign, federal and state tax withholding
obligations of the Company, if any.

        3. Binding Effect. I agree that the Shares are being acquired in
accordance with and subject to the terms, provisions and conditions of the
Option Agreement, including the Unvested Share Repurchase Option and the Right
of First Refusal set forth therein, to all of which I hereby expressly assent.
This Agreement shall inure to the benefit of and be binding upon the my heirs,
executors, administrators, successors and assigns. I agree to deposit the
certificate or certificates evidencing the Shares, along with a blank stock
assignment separate from certificate executed by me, with an escrow agent
designated by the Company, to be held by such escrow agent pursuant to the
Company's standard Joint Escrow Instructions, an executed copy of which I have
delivered herewith.


                                       1

<PAGE>   19

        4. Transfer. I am aware that Rule 144, promulgated under the Securities
Act, which permits limited public resale of securities acquired in a nonpublic
offering, is not currently available with respect to the Shares and, in any
event, is available only if certain conditions are satisfied. I understand that
any sale of the Shares that might be made in reliance upon Rule 144 may only be
made in limited amounts in accordance with the terms and conditions of such rule
and that a copy of Rule 144 will be delivered to me upon request.

        My address of record is:

         -----------------------------------------------------------------------

         -----------------------------------------------------------------------

        My Social Security Number is:               
                                      ------------------------------------------

        5. Election Under Section 83(b) of the Code. I understand and
acknowledge that if I am exercising the Option to purchase Unvested Shares
(i.e., shares that remain subject to the Company's Unvested Share Repurchase
Option), that I should consult with my tax advisor regarding the advisability of
filing with the Internal Revenue Service an election under Section 83(b) of the
Code, which must be filed no later than thirty (30) days after the date on which
I exercise the Option.

        I acknowledge that I have been advised to consult with a tax advisor
prior to the exercise of the Option regarding the tax consequences to me of
exercising the Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30
DAYS AFTER THE DATE ON WHICH I PURCHASE SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. I ACKNOWLEDGE THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS MY
SOLE RESPONSIBILITY, EVEN IF I REQUEST THE COMPANY OR ITS REPRESENTATIVES TO
FILE SUCH ELECTION ON MY BEHALF.


                                       2
<PAGE>   20

        I understand that I am purchasing the Shares pursuant to the terms of
the PipeLinks, Inc. 1997 Stock Option Plan and my Option Agreement, copies of
which I have received and carefully read and understand.

                                           Very truly yours,



                                           ------------------------------------
                                           (Signature)

                                           ------------------------------------
                                           (Optionee's Name Printed)


Receipt of the above is hereby acknowledged.

PIPELINKS, INC.

By:
   --------------------------------
Title:
      -----------------------------
Dated:
      -----------------------------





                                       3

<PAGE>   1

                                                                    Exhibit 99.4
                                  IMANAGE, INC.

                                54, WHITNEY PLACE
                                FREMONT, CA 94539


                                 1997 STOCK PLAN

                          ADOPTED ON NOVEMBER 10, 1997


<PAGE>   2




                                   


<TABLE>

<S>                                                                                        <C>
SECTION 1. ESTABLISHMENT AND PURPOSE.........................................................1


SECTION 2. ADMINISTRATION....................................................................1

        (a)    Committees of the Board of Directors..........................................1
        (b)    Authority of the Board of Directors...........................................1

SECTION 3. ELIGIBILITY.......................................................................1

        (a)    General Rule..................................................................1
        (b)    Ten-Percent Shareholders......................................................1

SECTION 4. STOCK SUBJECT TO PLAN.............................................................1

        (a)    Basic Limitation..............................................................1
        (b)    Additional Shares.............................................................2

SECTION 5. TERMS AND CONDITIONS OF AWARDS OR SALES...........................................2

        (a)    Stock Purchase Agreement......................................................2
        (b)    Duration of Offers and Nontransferability of Rights...........................2
        (c)    Purchase Price................................................................2
        (d)    Withholding Taxes.............................................................2
        (e)    Restrictions on Transfer of Shares and Minimum Vesting........................2
        (f)    Accelerated Vesting...........................................................3

SECTION 6. TERMS AND CONDITIONS OF OPTIONS...................................................3

        (a)    Stock Option Agreement........................................................3
        (b)    Number of Shares..............................................................3
        (c)    Exercise Price................................................................3
        (d)    Withholding Taxes.............................................................3
        (e)    Exercisability................................................................3
        (f)    Accelerated Exercisability....................................................4
        (g)    Basic Term....................................................................4
        (h)    Nontransferability............................................................4
        (i)    Termination of Service (Except by Death)......................................4
        (j)    Leaves of Absence.............................................................5
        (k)    Death of Optionee.............................................................5
        (l)    No Rights as a Shareholder....................................................5
        (m)    Modification, Extension and Assumption of Options.............................5
        (n)    Restrictions on Transfer of Shares and Minimum Vesting........................5
        (o)    Accelerated Vesting...........................................................6
</TABLE>




                                     Page i
<PAGE>   3
                            1997 iManage Stock Plan


<TABLE>

<S>                                                                                        <C>
SECTION 7.  PAYMENT FOR SHARES...............................................................6

        (a)    General Rule..................................................................6
        (b)    Surrender of Stock............................................................6
        (c)    Services Rendered.............................................................6
        (d)    Promissory Note...............................................................6
        (e)    Exercise/Sale.................................................................6
        (f)    Exercise/Pledge...............................................................6

SECTION 8.  ADJUSTMENT OF SHARES.............................................................7

        (a)    General.......................................................................7
        (b)    Mergers and Consolidations....................................................7
        (c)    Reservation of Rights.........................................................7

SECTION 9.  SECURITIES LAW REQUIREMENTS......................................................7

        (a)    General.......................................................................7
        (b)    Financial Reports.............................................................8

SECTION 10. NO RETENTION RIGHTS..............................................................8


SECTION 11. DURATION AND AMENDMENTS..........................................................8

        (a)    Term of the Plan..............................................................8
        (b)    Right to Amend or Terminate the Plan..........................................8
        (c)    Effect of Amendment or Termination............................................8

SECTION 12. DEFINITIONS......................................................................8


SECTION 13. EXECUTION.......................................................................11

</TABLE>


                                    Page ii
<PAGE>   4



                          IMANAGE, INC. 1997 STOCK PLAN


SECTION 1. ESTABLISHMENT AND PURPOSE.

        The purpose of the Plan is to offer selected individuals an opportunity
to acquire a proprietary interest in the success of the Company, or to increase
such interest, by purchasing Shares of the Company's Stock. The Plan provides
both for the direct award or sale of Shares and for the grant of Options to
purchase Shares. Options granted under the Plan may include Nonstatutory Options
as well as ISOs intended to qualify under Section 422 of the Code.

        Capitalized terms are defined in Section 12.

SECTION 2. ADMINISTRATION.

        (a) COMMITTEES OF THE BOARD OF DIRECTORS. The Plan may be administered
by one or more Committees. Each Committee shall consist of two or more members
of the Board of Directors who have been appointed by the Board of Directors.
Each Committee shall have such authority and be responsible for such functions
as the Board of Directors has assigned to it. If no Committee has been
appointed, the entire Board of Directors shall administer the Plan. Any
reference to the Board of Directors in the Plan shall be construed as a
reference to the Committee (if any) to whom the Board of Directors has assigned
a particular function.

        (b) AUTHORITY OF THE BOARD OF DIRECTORS. Subject to the provisions of
the Plan, the Board of Directors shall have full authority and discretion to
take any actions it deems necessary or advisable for the administration of the
Plan. All decisions, interpretations and other actions of the Board of Directors
shall be final and binding on all Purchasers, all Optionees and all persons
deriving their rights from a Purchaser or Optionee.

SECTION 3. ELIGIBILITY.

        (a) GENERAL RULE. Only Employees, Outside Directors and Consultants
shall be eligible for the grant of Options or the direct award or sale of
Shares. Only Employees shall be eligible for the grant of ISOS.

        (b) TEN-PERCENT SHAREHOLDERS. An individual who owns more than 10% of
the total combined voting power of all classes of outstanding stock of the
Company, its Parent or any of its Subsidiaries shall not be eligible for
designation as an Optionee or Purchaser unless (i) the Exercise Price is at
least I 10% of the Fair Market Value of a Share on the date of grant, (ii) the
Purchase Price (if any) is at least 100% of the Fair Market Value of a Share and
(iii) in the case of an ISO, such ISO by its terms is not exercisable after the
expiration of five years from the date of grant. For purposes of this Subsection
(b), in determining stock ownership, the attribution rules of Section 424(d) of
the Code shall be applied.

SECTION 4. STOCK SUBJECT TO PLAN.

        (a) BASIC LIMITATION. The aggregate number of Shares that may be issued
under the Plan (upon exercise of Options or other rights to acquire Shares)
shall not exceed 400,000 


                                     Page 1
<PAGE>   5
                            1997 iManage Stock Plan


Shares, subject to adjustment pursuant to Section 8. The number of Shares that
are subject to Options or other rights outstanding at any time under the Plan
shall not exceed the number of Shares that then remain available for issuance
under the Plan. The Company, during the term of the Plan, shall at all times
reserve and keep available sufficient Shares to satisfy the requirements of the
Plan.

        (b) ADDITIONAL SHARES. In the event that any outstanding Option or other
right for any reason expires or is canceled or otherwise terminated, the Shares
allocable to the unexercised portion of such Option or other right shall again
be available for the purposes of the Plan. In the event that Shares issued under
the Plan are reacquired by the Company pursuant to any forfeiture provision,
right of repurchase or right of first refusal, such Shares shall again be
available for the purposes of the Plan, except that the aggregate number of
Shares which may be issued upon the exercise of ISOs shall in no event exceed
400,000 Shares (subject to adjustment pursuant to Section 8).

SECTION 5. TERMS AND CONDITIONS OF AWARDS OR SALES.

        (a) STOCK PURCHASE AGREEMENT. Each award or sale of Shares under the
Plan (other than upon exercise of an Option) shall be evidenced by a Stock
Purchase Agreement between the Purchaser and the Company. Such award or sale
shall be subject to all applicable terms and conditions of the Plan and may be
subject to any other terms and conditions which are not inconsistent with the
Plan and which the Board of Directors deems appropriate for inclusion in a Stock
Purchase Agreement. The provisions of the various Stock Purchase Agreements
entered into under the Plan need not be identical.

        (b) DURATION OF OFFERS AND NONTRANSFERABILITY OF RIGHTS. Any right to
acquire Shares under the Plan (other than an Option) shall automatically expire
if not exercised by the Purchaser within 30 days after the grant of such right
was communicated to the Purchaser by the Company. Such right shall not, be
transferable and shall be exercisable only by the Purchaser to whom such right
was granted.

        (c) PURCHASE PRICE. The Purchase Price of Shares to be offered under the
Plan shall not be less than 85% of the Fair Market Value of such Shares, and a
higher percentage may be required by Section 3(b). Subject to the preceding
sentence, the Purchase Price shall be determined by the Board of Directors at
its sole discretion. The Purchase Price shall be payable in a form described in
Section 7.

        (d) WITHHOLDING TAXES. As a condition to the purchase of Shares, the
Purchaser shall make such arrangements as the Board of Directors may require for
the satisfaction of any federal, state, local or foreign withholding tax
obligations that may arise in connection with such purchase.

        (e) RESTRICTIONS ON TRANSFER OF SHARES AND MINIMUM VESTING. Any Shares
awarded or sold under the Plan shall be subject to such special forfeiture
conditions, rights of repurchase, rights of first refusal and other transfer
restrictions as the Board of Directors may determine. Such restrictions shall be
set forth in the applicable Stock Purchase Agreement and shall apply in addition
to any restrictions that may apply to holders of Shares generally. In the 



                                     Page 2
<PAGE>   6
                            1997 iManage Stock Plan



case of a Purchaser who is not an officer of the Company, an Outside Director or
a Consultant, any right to repurchase the Purchaser's Shares at the original
Purchase Price (if any) upon termination of the Purchaser's Service shall lapse
at least as rapidly as 20% per year over the five-year period commencing on the
date of the award or sale of the Shares. Any such right may be exercised only
within 90 days after the termination of the Purchaser's Service for cash or for
cancellation of indebtedness incurred in purchasing the Shares.

        (f) ACCELERATED VESTING. Unless the applicable Stock Purchase Agreement
provides otherwise, any right to repurchase a Purchaser's Shares at the original
Purchase Price (if any) upon termination of the Purchaser's Service shall lapse
and all of such Shares shall become vested if (i) the Company is subject to a
Change in Control before the Purchaser's Service terminates and (ii) the
repurchase right is not assigned to the entity that employs the Purchaser
immediately after the Change in Control or to its parent or subsidiary.

SECTION 6. TERMS AND CONDITIONS OF OPTIONS.

        (a) STOCK OPTION AGREEMENT. Each grant of an Option under the Plan shall
be evidenced by a Stock Option Agreement between the Optionee and the Company.
Such Option shall be subject to all applicable terms and conditions of the Plan
and may be subject to any other terms and conditions which are not inconsistent
with the Plan and which the Board of Directors deems appropriate for inclusion
in a Stock Option Agreement. The provisions of the various Stock Option
Agreements entered into under the Plan need not be identical.

        (b) NUMBER OF SHARES. Each Stock Option Agreement shall specify the
number of Shares that are subject to the Option and shall provide for the
adjustment of such number in accordance with Section 8. The Stock Option
Agreement shall also specify whether the Option is an ISO or a Nonstatutory
Option.

        (c) EXERCISE PRICE. Each Stock Option Agreement shall specify the
Exercise Price. The Exercise Price of an ISO shall not be less than 100% of the
Fair Market Value of a Share on the date of grant, and a higher percentage may
be required by Section 3(b). The Exercise Price of a Nonstatutory Option shall
not be less than 85% of the Fair Market Value of a Share on the date of grant,
and a higher percentage may be required by Section 3(b). Subject to the
preceding two sentences, the Exercise Price under any Option shall be determined
by the Board of Directors at its sole discretion. The Exercise Price shall be
payable in a form described in Section 7.

        (d) WITHHOLDING TAXES. As a condition to the exercise of an Option, the
Optionee shall make such arrangements as the Board of Directors may require for
the satisfaction of any federal, state, local or foreign withholding tax
obligations that may arise in connection with such exercise. The Optionee shall
also make such arrangements as the Board of Directors may require for the
satisfaction of any federal, state, local or foreign withholding tax obligations
that may arise in connection with the disposition of Shares acquired by
exercising an Option.

        (e) EXERCISABILITY. Each Stock Option Agreement shall specify the date
when all or any installment of the Option is to become exercisable. In the case
of an Optionee who is not an officer of the Company, an Outside Director or a
Consultant, an Option shall become exercisable 




                                     Page 3
<PAGE>   7
                            1997 iManage Stock Plan

at least as rapidly as 20% per year over the five-year period commencing on the
date of the grant. Subject to the preceding sentence, the exercisability
provisions of any Stock Option Agreement shall be determined by the Board of
Directors at its sole discretion.

        (f) ACCELERATED EXERCISABILITY. Unless the applicable Stock Option
Agreement provides otherwise, all of an Optionee's Options shall become
exercisable in full if (i) the Company is subject to a Change in Control before
the Optionee's Service terminates, (ii) such Options do not remain outstanding,
(iii) such Options are not assumed by the surviving corporation or its parent
and (iv) the surviving corporation or its parent does not substitute options
with substantially the same terms for such Options.

        (g) BASIC TERM. The Stock Option Agreement shall specify the term of the
Option. The term shall not exceed 10 years from the date of grant, and a shorter
term may be required by Section 3(b). Subject to the preceding sentence, the
Board of Directors at its sole discretion shall determine when an Option is to
expire.

        (h) NONTRANSFERABILITY. No Option shall be transferable by the Optionee
other than by beneficiary designation, will or the laws of descent and
distribution. An Option may be exercised during the lifetime of the Optionee
only by the Optionee or by the Optionee's guardian or legal representative. No
Option or interest therein may be transferred, assigned, pledged or hypothecated
by the Optionee during the Optionee's lifetime, whether by operation of law or
otherwise, or be made subject to execution, attachment or similar process.

        (i) TERMINATION OF SERVICE (EXCEPT BY DEATH). If an Optionee's Service
terminates for any reason other than the Optionee's death, then the Optionee's
Options shall expire on the earliest of the following occasions:

                        (i) The expiration date determined pursuant to
                Subsection (g) above;

                        (ii) The date three months after the termination of the
                Optionee's Service for any reason other than Disability, or such
                later date as the Board of Directors may determine; or,

                        (iii) The date six months after the termination of the
                Optionee's Service by reason of Disability, or such later date
                as the Board of Directors may determine.

The Optionee may exercise all or part of the Optionee's Options at any time
before the expiration of such Options under the preceding sentence, but only to
the extent that such Options had become exercisable before the Optionee's
Service terminated (or became exercisable as a result of the termination) and
the underlying Shares had vested before the Optionee's Service terminated (or
vested as a result of the termination). The balance of such Options shall lapse
when the Optionee's Service terminates. In the event that the Optionee dies
after the termination of the Optionee's Service but before the expiration of the
Optionee's Options, all or part of such Options may be exercised (prior to
expiration) by the executors or administrators of the Optionee's estate or by
any person who has acquired such Options directly from the Optionee by
beneficiary designation, bequest or inheritance, but only to the extent that
such Options had become exercisable before the Optionee's Service terminated (or
became exercisable as a result 




                                     Page 4
<PAGE>   8
                            1997 iManage Stock Plan

of the termination) and the underlying Shares had vested before the Optionee's
Service terminated (or vested as a result of the termination).

        (j) LEAVES OF ABSENCE. For purposes of Subsection (i) above, Service
shall be deemed to continue while the Optionee is on a bona fide leave of
absence, if such leave was V/ approved by the Company in writing and if
continued crediting of Service for this purpose is expressly required by the
terms of such leave or by applicable law (as determined by the Company).

        (k) DEATH OF OPTIONEE. If an Optionee dies while the Optionee is in
Service, then the Optionee's Options shall expire on the earlier of the
following dates:

                        (i) The expiration date determined pursuant to
                Subsection (g) above;or

                        (ii) The date 12 months after the Optionee's death.

All or part of the Optionee's Options may be exercised at any time before the
expiration of such Options under the preceding sentence by the executors or
administrators of the Optionee's estate or by any person who has acquired such
Options directly from the Optionee by beneficiary designation, bequest or
inheritance, only to the extent that such Options had become exercisable before
the Optionee's death or became exercisable as a result of the death. The balance
of such Options shall lapse when the Optionee dies.

        (l) NO RIGHTS AS A SHAREHOLDER. An Optionee, or a transferee of an
Optionee, shall have no rights as a shareholder with respect to any Shares
covered by the Optionee's Option until such person becomes entitled to receive
such Shares by filing a notice of exercise and paying the Exercise Price
pursuant to the terms of such Option.

        (m) MODIFICATION, EXTENSION AND ASSUMPTION OF OPTIONS. Within the
limitations of the Plan, the Board of Directors may modify, extend or assume
outstanding Options or may accept the cancellation of outstanding Options
(whether granted by the Company or another issuer) in return for the grant of
new Options for the same or a different number of Shares and at the same or a
different Exercise Price. The foregoing notwithstanding, no modification of an
Option shall, without the consent of the Optionee, impair the Optionee's rights
or increase the Optionee's obligations under such Option.

        (n) RESTRICTIONS ON TRANSFER OF SHARES AND MINIMUM VESTING. Any Shares
issued upon exercise of an Option shall be subject to such special forfeiture
conditions, rights of repurchase, rights of first refusal and other transfer
restrictions as the Board of Directors may determine. Such restrictions shall be
set forth in the applicable Stock Option Agreement and shall apply in addition
to any restrictions that may apply to holders of Shares generally. In the case
of an Optionee who is not an officer of the Company, an Outside Director or a
Consultant, any right to repurchase the Optionee's Shares at the original
Exercise Price upon termination of the Optionee's Service shall lapse at least
as rapidly as 20% per year over the five-year period commencing on the date of
the option grant. Any such repurchase right may be exercised only within 90 days
after the termination of the Optionee's Service for cash or for cancellation of
indebtedness incurred in purchasing the Shares.



                                     Page 5
<PAGE>   9
                            1997 iManage Stock Plan


        (o) ACCELERATED VESTING. Unless the applicable Stock Option Agreement
provides otherwise, any right to repurchase an Optionee's Shares at the original
Exercise Price upon termination of the Optionee's Service shall lapse and all of
such Shares shall become vested if (i) the Company is subject to a Change in
Control before the Optionee's Service terminates and (ii) the repurchase right
is not assigned to the entity that employs the Optionee immediately after the
Change in Control or to its parent or subsidiary.

SECTION 7. PAYMENT FOR SHARES.

        (a) GENERAL RULE. The entire Purchase Price or Exercise Price of Shares
issued under the Plan shall be payable in cash or cash equivalents at the time
when such Shares are purchased, except as otherwise provided in this Section 7.

        (b) SURRENDER OF STOCK. To the extent that a Stock Option Agreement so
provides, all or any part of the Exercise Price may be paid by surrendering, or
attesting to the ownership of, Shares that are already owned by the Optionee.
Such Shares shall be surrendered to the Company in good form for transfer and
shall be valued at their Fair Market Value on the date when the Option is
exercised. The Optionee shall not surrender, or attest to the ownership of,
Shares in payment of the Exercise Price if such action would cause the Company
to recognize compensation expense (or additional compensation expense) with
respect to the Option for financial reporting purposes.

        (c) SERVICES RENDERED. At the discretion of the Board of Directors,
Shares may be awarded under the Plan in consideration of services rendered to
the Company, a Parent or a Subsidiary prior to the award.

        (d) PROMISSORY NOTE. To the extent that a Stock Option Agreement or
Stock Purchase Agreement so provides, all or a portion of the Exercise Price or
Purchase Price (as the case may be) of Shares issued under the Plan may be paid
with a full-recourse promissory note. The Shares shall be pledged as security
for payment of the principal amount of the promissory note and interest thereon.
The interest rate payable under the terms of the promissory note shall not be
less than the minimum rate (if any) required to avoid the imputation of
additional interest under the Code. Subject to the foregoing, the Board of
Directors (at its sole discretion) shall specify the term, interest rate,
amortization requirements (if any) and other provisions of such note.

        (e) EXERCISE/SALE. To the extent that a Stock Option Agreement so
provides, and if Stock is publicly traded, payment may be made all or in part by
the delivery (on a form prescribed by the Company) of an irrevocable direction
to a securities broker approved by the Company to sell Shares and to deliver all
or part of the sales proceeds to the Company in payment of all or part of the
Exercise Price and any withholding taxes.

        (f) EXERCISE/PLEDGE. To the extent that a Stock Option Agreement so
provides, and if Stock is publicly traded, payment may be made all or in part by
the delivery (on a form prescribed by the Company) of an irrevocable direction
to pledge Shares to a securities broker or lender approved by the Company, as
security for a loan, and to deliver all or part of the loan 



                                     Page 6
<PAGE>   10
                            1997 iManage Stock Plan



proceeds to the Company in payment of all or part of the Exercise Price and any
withholding taxes.

SECTION 8. ADJUSTMENT OF SHARES.

        (a) GENERAL. In the event of a subdivision of the outstanding Stock, a
declaration of a dividend payable in Shares, a declaration of an extraordinary
dividend payable in a form other than Shares in an amount that has a material
effect on the Fair Market Value of the Stock, a combination or consolidation of
the outstanding Stock into a lesser number of Shares, a recapitalization, a
spin-off, a reclassification or a similar occurrence, the Board of Directors
shall make appropriate adjustments in one or more of (i) the number of Shares
available for future grants under Section 4, (ii) the number of Shares covered
by each outstanding Option or (iii) the Exercise Price under each outstanding
Option.

        (b) MERGERS AND CONSOLIDATIONS. In the event that the Company is a party
to a merger or consolidation, outstanding Options shall be subject to the
agreement of merger or consolidation. Such agreement, without the Optionees'
consent, may provide for:

                        (i) The continuation of such outstanding Options by the
                Company (if the Company is the surviving corporation);

                        (ii) The assumption of the Plan and such outstanding
                Options by the surviving corporation or its parent;

                        (iii) The substitution by the surviving corporation or
                its parent of options with substantially the same terms for such
                outstanding Options; or

                        (iv) The cancellation of such outstanding Options
                without payment of any consideration.

        (c) RESERVATION OF RIGHTS. Except as provided in this Section 8, an
Optionee or Purchaser shall have no rights by reason of (i) any subdivision or
consolidation of shares of stock of any class, (ii) the payment of any dividend
or (iii) any other increase or decrease in the number of shares of stock of any
class. Any issuance by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall not affect, and
no adjustment by reason thereof shall be made with respect to, the number or
Exercise Price of Shares subject to an

Option. The grant of an Option pursuant to the Plan shall not affect in any way
the right or power of the Company to make adjustments, reclassifications,
reorganizations or changes of its capital or business structure, to merge or
consolidate or to dissolve, liquidate, sell or transfer all or any part of its
business or assets.

SECTION 9. SECURITIES LAW REQUIREMENTS.

        (a) GENERAL. Shares shall not be issued under the Plan unless the
issuance and delivery of such Shares comply with (or are exempt from) all
applicable requirements of law, including (without limitation) the Securities
Act of 1933, as amended, the rules and regulations 


                                     Page 7
<PAGE>   11
                            1997 iManage Stock Plan

promulgated thereunder, state securities laws and regulations, and the
regulations of any stock exchange or other securities market on which the
Company's securities may then be traded.

        (b) FINANCIAL REPORTS. The Company each year shall furnish to Optionees,
Purchasers and shareholders who have received Stock under the Plan its balance
sheet and income statement, unless such Optionees, Purchasers or shareholders
are key Employees whose duties with the Company assure them access to equivalent
information. Such balance sheet and income statement need not be audited.

SECTION 10. NO RETENTION RIGHTS.

        Nothing in the Plan or in any right or Option granted under the Plan
shall confer upon the Purchaser or 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 Company (or any Parent or Subsidiary employing or
retaining the Purchaser or Optionee) or of the Purchaser or Optionee, which
rights are hereby expressly reserved by each, to terminate his or her Service at
any time and for any reason, with or without cause.

SECTION 11. DURATION AND AMENDMENTS.

        (a) TERM OF THE PLAN. The Plan, as set forth herein, shall become
effective on the date of its adoption by the Board of Directors, subject to the
approval of the Company's shareholders. In the event that the shareholders fail
to approve the Plan within 12 months after its adoption by the Board of
Directors, any grants of Options or sales or awards of Shares that have already
occurred shall be rescinded, and no additional grants, sales or awards shall be
made thereafter under the Plan. The Plan shall terminate automatically 10 years
after its adoption by the Board of Directors and may be terminated on any
earlier date pursuant to Subsection (b) below.

        (b) RIGHT TO AMEND OR TERMINATE THE PLAN. The Board of Directors may
amend, suspend or terminate the Plan at any time and for any reason; provided,
however, that any amendment of the Plan which increases the number of Shares
available for issuance under the Plan (except as provided in Section 8), or
which materially changes the class of persons who are eligible for the grant of
ISOS, shall be subject to the approval of the Company's shareholders.
Shareholder approval shall not be required for any other amendment of the Plan.

        (c) EFFECT OF AMENDMENT OR TERMINATION. No Shares shall be issued or
sold under the Plan after the termination thereof, except upon exercise of an
Option granted prior to such termination. The termination of the Plan, or any
amendment thereof, shall not affect any Share previously issued or any Option
previously granted under the Plan.

SECTION 12. DEFINITIONS.

        (a) "BOARD OF DIRECTORS" shall mean the Board of Directors of the
Company, as constituted from time to time.

        (b) "CHANGE IN CONTROL" shall mean:

                                     Page 8
<PAGE>   12
                            1997 iManage Stock Plan


                        (i) The consummation of a merger or consolidation of the
                Company with or into another entity or any other corporate
                reorganization, if more than 50% of the combined voting power of
                the continuing or surviving entity's securities outstanding
                immediately after such merger, consolidation or other
                reorganization is owned by persons who were not shareholders of
                the Company immediately prior to such merger, consolidation or
                other reorganization; or

                        (ii) The sale, transfer or other disposition of all or
                substantially all of the Company's assets.

A transaction shall not constitute a Change in Control if its sole purpose is to
change the state of the Company's incorporation or to create a holding company
that will be owned in substantially the same proportions by the persons who held
the Company's securities immediately before such transaction. 

        (c) "CODE" shall mean the Internal Revenue Code of 1986, as amended.

        (d) "COMMITTEE" shall mean a committee of the Board of Directors, as
described in Section 2(a).

        (e) "COMPANY" shall mean iManage, Inc., a California corporation.

        (f) "CONSULTANT" shall mean a person who performs bona fide services for
the Company, a Parent or a Subsidiary as a consultant or advisor, excluding
Employees and Outside Directors.

        (g) "DISABILITY" shall mean that the Optionee is unable to engage in any
substantial gainful activity by reason of any medically determinable physical or
mental impairment.

        (h) "Employee" shall mean any individual who is a common-law employee of
the Company, a Parent or a Subsidiary.

        (i) "EXERCISE PRICE" shall mean the amount for which one Share may be
purchased upon exercise of an Option, as specified by the Board of Directors in
the applicable Stock Option Agreement.

        (j) "FAIR MARKET VALUE" shall mean the fair market value of a Share, as
determined by the Board of Directors in good faith. Such determination shall be
conclusive and binding on all persons.

        (k) "ISO" shall mean an employee incentive stock option described in
Section 422(b) of the Code.

        (l) "NONSTATUTORY OPTION" shall mean a stock option not described in
Sections 422(b) or 423(b) of the Code.

        (m) "OPTION" shall mean an ISO or Nonstatutory Option granted under the
Plan and entitling the holder to purchase Shares.

                                     Page 9
<PAGE>   13
                            1997 iManage Stock Plan


        (n) "OPTIONEE" shall mean an individual who holds an Option.

        (o) "OUTSIDE DIRECTOR" shall mean a member of the Board of Directors who
is not an Employee.

        (p) "PARENT" shall mean any corporation (other than the Company) in an
unbroken chain of corporations ending with the Company, if each of the
corporations other than the Company owns stock possessing 50% or more of the
total combined voting power of all classes of stock in one of the other
corporations in such chain. A corporation that attains the status of a Parent on
a date after the adoption of the Plan shall be considered a Parent commencing as
of such date.

        (q) "PLAN" shall mean this iManage, Inc. 1997 Stock Plan.

        (r) "PURCHASE PRICE" shall mean the consideration for which one Share
may be acquired under the Plan (other than upon exercise of an Option), as
specified by the Board of Directors.

        (s) "PURCHASER" shall mean an individual to whom the Board of Directors
has offered the right to acquire Shares under the Plan (other than upon exercise
of an Option).

        (t) "SERVICE" shall mean service as an Employee, Outside Director or
Consultant.

        (u) "SHARE" shall mean one share of Stock, as adjusted in accordance
with Section 8 (if applicable).

        (v) "STOCK" shall mean the Common Stock of the Company.

        (w) "STOCK OPTION AGREEMENT" shall mean the agreement between the
Company and an Optionee which contains the terms, conditions and restrictions
pertaining to the Optionee's Option.

        (x) "STOCK PURCHASE AGREEMENT" shall mean the agreement between the
Company and a Purchaser who acquires Shares under the Plan which contains the
terms, conditions and restrictions pertaining to the acquisition of such Shares.

        (y) "SUBSIDIARY" means any corporation (other than the Company) in an
unbroken chain of corporations beginning with the Company, if each of the
corporations other than the last corporation in the unbroken chain owns stock
possessing 50% or more of the total combined voting power of all classes of
stock in one of the other corporations in such chain. A corporation that attains
the status of a Subsidiary on a date. after the adoption of the Plan shall be
considered a Subsidiary commencing as of such date.



                                     Page 10
<PAGE>   14
                            1997 iManage Stock Plan


SECTION 13. EXECUTION.

        To record the adoption of the Plan by the Board of Directors, the
Company has caused its authorized officer to execute the same.

                                            IMANAGE, INC.


                                            By:   
                                               ---------------------------------
                                            Name: 
                                                 -------------------------------
                                            Title:
                                                  ------------------------------




                                     Page 11
<PAGE>   15


                   Resolution For Adoption of 1997 Stock Plan


                                    EXHIBIT B

                             STOCK OPTION AGREEMENT


                                      E-2
<PAGE>   16




[IMANAGE LETTERHEAD]

 
                          IMANAGE, INC. 1997 STOCK PLAN

                          NOTICE OF STOCK OPTION GRANT

You have been granted the following option to purchase Common Stock of iManage,
Inc. (the "Company"):
<TABLE>

<S>                                                         <C> 
                        Name of Optionee:
                                                            --------------------
                        Total Number of Shares Granted:
                                                            --------------------

                        Type of Option:                     ISO/NSO

                        Exercise Price Per Share:
                                                            --------------------

                        Date of Grant:
                                                            --------------------
                        Date Exercisable:                   THIS OPTION MAY BE
                                                            EXERCISED, IN WHOLE
                                                            OR IN PART, FOR 100%
                                                            OF THE SHARES
                                                            SUBJECT TO THIS
                                                            OPTION AT ANY TIME
                                                            AFTER THE DATE OF
                                                            GRANT.

                        Vesting Commencement Date:                                        
                                                            --------------------
                        Vesting Schedule:                   THE RIGHT OF
                                                            REPURCHASE SHALL
                                                            LAPSE WITH RESPECT
                                                            TO THE FIRST 25% OF
                                                            THE SHARES SUBJECT
                                                            TO THIS OPTION WHEN
                                                            THE OPTIONEE
                                                            COMPLETES 12 MONTHS
                                                            OF CONTINUOUS
                                                            SERVICE AFTER THE
                                                            VESTING COMMENCEMENT
                                                            DATE. THE RIGHT OF
                                                            REPURCHASE SHALL
                                                            LAPSE WITH RESPECT
                                                            TO AN ADDITIONAL
                                                            1/48TH OF THE SHARES
                                                            SUBJECT TO THIS
                                                            OPTION WHEN THE
                                                            OPTIONEE COMPLETES
                                                            EACH MONTH OF
                                                            CONTINUOUS SERVICE
                                                            THEREAFTER.

                         Expiration Date:                   (TEN YEARS FROM 
                                                            GRANT DATE)
</TABLE>

By your signature and the signature of the Company's representative below, you
and the Company agree that this option is granted under and governed by the
terms and conditions of the 1997 Stock Plan and the Stock Option Agreement, both
of which are attached to and made a part of this document.

OPTIONEE:                                          IMANAGE, INC.

                                                   By
- ------------------------                            ----------------------------

                                                   Title: 
- ------------------------                            ----------------------------
Print Name




<PAGE>   1
                                                                    EXHIBIT 99.5


THE OPTION GRANTED PURSUANT TO THIS AGREEMENT AND THE SHARES ISSUABLE UPON THE
EXERCISE THEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND MAY NOT BE SOLD, PLEDGED,, OR OTHERWISE TRANSFERRED WITHOUT AN
EFFECTIVE REGISTRATION THEREOF UNDER SUCH ACT OR AN OPINION OF COUNSEL,
SATISFACTORY TO THE COMPANY AND ITS COUNSEL, THAT SUCH REGISTRATION IS NOT
REQUIRED.

                         iMANAGE, INC. 1997 STOCK PLAN:
                             STOCK OPTION AGREEMENT

SECTION 1. GRANT OF OPTION.

        (a) OPTION. On the terms and conditions set forth in the Notice of Stock
Option Grant and this Agreement, the Company grants to the Optionee on the Date
of Grant the option to purchase at the Exercise Price the number of Shares set
forth in the Notice of Stock Option Grant. The Exercise Price is agreed to be at
least 100% of the Fair Market Value per Share on the Date of Grant (110% of Fair
Market Value if Section 3(b) of the Plan applies). This option is intended to be
an ISO or a Nonstatutory Option, as provided in the Notice of Stock Option
Grant.

        (b) STOCK PLAN AND DEFINED TERMS. This option is granted pursuant to the
Plan, a copy of which the Optionee acknowledges having received. The provisions
of the Plan are incorporated into this Agreement by this reference. Capitalized
terms are defined in Section 14 of this Agreement.

SECTION 2. RIGHT TO EXERCISE.

        (a) EXERCISABILITY. Subject to Subsections (b) and (c) below and the
other conditions set forth in this Agreement, all or part of this option may be
exercised prior to its expiration at the time or times set forth in the Notice
of Stock Option Grant. Shares purchased by exercising this option may be subject
to the. Right of Repurchase under Section 7.

        (b) $100,000 LIMITATION. If this option is designated as an ISO in the
Notice of Stock Option Grant, then the Optionee's right to exercise this option
shall be deferred to the extent (and only to the extent) that this option
otherwise would not be treated as an ISO by reason of the $100,000 annual
limitation under Section 422(d) of the Code, except that:

                (i) The Optionee's right to exercise this option shall in any
        event become exercisable at least as rapidly as 20% per year over the
        five-year period commencing on the Date of Grant, unless the Optionee is
        an officer of the Company, an Outside Director or a Consultant; and

                (ii) The Optionee's right to exercise this option shall no
        longer be deferred if (A) the Company is subject to a Change in Control
        before the Optionee's Service terminates, (B) this option does not
        remain outstanding, (C) this option is not assumed by the surviving
        corporation or its parent and (D) the surviving corporation or its
        parent does not substitute an option with substantially the same terms
        for this option.
<PAGE>   2

        (c) SHAREHOLDER APPROVAL. Any other provision of this Agreement
notwithstanding, no portion of this option shall be exercisable at any time
prior to the approval of the Plan by the Company's shareholders.

SECTION 3. NO TRANSFER OR ASSIGNMENT OF OPTION.

        Except as otherwise provided in this Agreement, this option and the
rights and privileges conferred hereby shall not be sold, pledged or otherwise
transferred (whether by operation of law or otherwise) and shall not be subject
to sale under execution, attachment, levy or similar process.

SECTION 4. EXERCISE PROCEDURES.

        (a) NOTICE OF EXERCISE. The Optionee or the Optionee's representative
may exercise this option by giving written notice to the Company pursuant to
Section 13(c). The notice shall specify the election to exercise this option,
the number of Shares for which it is being exercised and the form of payment.
The notice shall be signed by the person exercising this option. In the event
that this option is being exercised by the representative of the Optionee, the
notice shall be accompanied by proof (satisfactory to the Company) of the
representative's right to exercise this option. The Optionee or the Optionee's
representative shall deliver to the Company, at the time of giving the notice,
payment in a form permissible under Section 5 for the full amount of the
Purchase Price.

        (b) ISSUANCE OF SHARES. After receiving a proper notice of exercise, the
Company shall cause to be issued a certificate or certificates for the Shares as
to which this option has been exercised, registered in the name of the person
exercising this option (or in the names of such person and his or her spouse as
community property or as joint tenants with right of survivorship). The Company
shall cause such certificate or certificates to be deposited in escrow or
delivered to or upon the order of the person exercising this option.

        (c) WITHHOLDING TAXES. In the event that the Company determines that it
is required to withhold any tax as a result of the exercise of this option, the
Optionee, as a condition to the exercise of this option, shall make arrangements
satisfactory to the Company to enable it to satisfy all withholding
requirements. The Optionee shall also make arrangements satisfactory to the
Company to enable it to satisfy any withholding requirements that may arise in
connection with the vesting or disposition of Shares purchased by exercising
this option.

SECTION 5. PAYMENT FOR STOCK.

        (a) CASH. All or part of the Purchase Price may be paid in cash or cash
equivalents.

        (b) SURRENDER OF STOCK. All or any part of the Purchase Price may be
paid by surrendering, or attesting to the ownership of, Shares that are already
owned by the Optionee. Such Shares shall be surrendered to the Company in good
form for transfer and shall be valued at their Fair Market Value on the date
when this option is exercised. The Optionee shall not surrender, or attest to
the ownership of, Shares in payment of the Purchase Price if such action 


                                       2

<PAGE>   3

would cause the Company to recognize compensation expense (or additional
compensation expense) with respect to this option for financial reporting
purposes.

        (c) EXERCISE/SALE. If Stock is publicly traded, all or part of the
Purchase Price and any withholding taxes may be paid by the delivery (on a form
prescribed by the Company) of an irrevocable direction to a securities broker
approved by the Company to sell Shares and to deliver all or part of the sales
proceeds to the Company.

        (d) EXERCISE/PLEDGE. If Stock is publicly traded, all or part of the
Purchase Price and any withholding taxes may be paid by the delivery (on a form
prescribed by the Company) of an irrevocable direction to pledge Shares to a
securities broker or lender approved by the Company, as security for a loan, and
to deliver all or part of the loan proceeds to the Company.

SECTION 6. TERM AND EXPIRATION.

        (a) BASIC TERM. This option shall in any event expire on the expiration
date set forth in the Notice of Stock Option Grant, which date is 10 years after
the Date of Grant (five years after the Date of Grant if this option is
designated as an ISO in the Notice of Stock Option Grant and Section 3(b) of the
Plan applies).

        (b) TERMINATION OF SERVICE (EXCEPT BY DEATH). If the Optionee's Service
terminates for any reason other than death, then this option shall expire on the
earliest of the following occasions:

                (i) The expiration date determined pursuant to Subsection (a)
        above;

                (ii) The date three months after the termination of the
        Optionee's Service for any reason other than Disability; or

                (iii) The date six months after the termination of the
        Optionee's Service by reason of Disability.

        The Optionee may exercise all or part of this option at any time before
its expiration under the preceding sentence, but only to the extent that this
option had become exercisable before the Optionee's Service terminated. When the
Optionee's Service terminates, this option shall expire immediately with respect
to the number of Shares for which this option is not yet exercisable and with
respect to any Restricted Shares. In the event that the Optionee dies after
termination of Service but before the expiration of this option, 0 or part of
this option may be exercised (prior to expiration) by the executors or
administrators of the Optionee's estate or by any person who has acquired this
option directly from the Optionee by beneficiary designation, bequest or
inheritance, but only to the extent that this option had become exercisable
before the Optionee's Service terminated.

        (c) DEATH OF THE OPTIONEE. If the Optionee dies while in Service, then
this option shall expire on the earlier of the following dates:

                (i) The expiration date determined pursuant to Subsection (a)
        above; or


                                       3

<PAGE>   4

                (ii) The date 12 months after the Optionee's death.

        All or part of this option may be exercised at any time before its
expiration under the preceding sentence by the executors or administrators of
the Optionee's estate or by any person who has acquired this option directly
from the Optionee by beneficiary designation, bequest or inheritance, but only
to the extent that this option had become exercisable before the Optionee's
death. When the Optionee dies, this option shall expire immediately with respect
to the number of Shares for which this option is not yet exercisable and with
respect to any Restricted Shares.

        (d) LEAVES OF ABSENCE. For any purpose under this Agreement, Service
shall be deemed to continue while the Optionee is on a bona fide leave of
absence, if such leave was approved by the Company in writing and if continued
crediting of Service for such purpose is expressly required by the terms of such
leave or by applicable law (as determined by the Company).

        (e) NOTICE CONCERNING ISO TREATMENT. If this option is designated as an
ISO in the Notice of Stock Option Grant, it ceases to qualify for favorable tax
treatment as an ISO to the extent it is exercised (i) more than three months
after the date the Optionee ceases to be an Employee for any reason other than
death or permanent and total disability (as defined in Section 22(e)(3) of the
Code), (ii) more than 12 months after the date the Optionee ceases to be an
Employee by reason of such permanent and total disability or (iii) after the
Optionee has been on a leave of absence for more than 90 days, unless the
Optionee's reemployment rights are guaranteed by statute or by contract.

SECTION 7. RIGHT OF REPURCHASE.

        (a) SCOPE OF REPURCHASE RIGHT. Unless they have become vested in
accordance with the Notice of Stock Option Grant and Subsection (c) below, the
Shares acquired under this Agreement initially shall be Restricted Shares and
shall be subject to a right (but not an obligation) of repurchase by the
Company. The Optionee shall not transfer, assign, encumber or otherwise dispose
of any Restricted Shares, except as provided in the following sentence. The
Optionee may transfer Restricted Shares (i) by beneficiary designation, will or
intestate succession or (ii) to the Optionee's spouse, children or grandchildren
or to a trust established by the Optionee for the benefit of the Optionee or the
Optionee's spouse, children or grandchildren, provided in either case that the
Transferee agrees in writing on a form prescribed by the Company to be bound by
all provisions of this Agreement. If the Optionee transfers any Restricted
Shares, then this Section 7 shall apply to the Transferee to the same extent as
to the Optionee.

        (b) CONDITION PRECEDENT TO EXERCISE. The Right of Repurchase shall be
exercisable with respect to any Restricted Shares only during the 60-day period
next following the later of:

                (i) The date when the Optionee's Service terminates for any
        reason, with or without cause, including (without limitation) death or
        disability; or

                (ii) The date when such Restricted Shares were purchased by the
        Optionee, the executors or administrators of the Optionee's estate or
        any person who has acquired this option directly from the Optionee by
        bequest, inheritance or beneficiary designation.


                                       4

<PAGE>   5

        (c) LAPSE OF REPURCHASE RIGHT. The Right of Repurchase shall lapse with
respect to the Shares subject to this option in accordance with the vesting
schedule set forth in the Notice of Stock Option Grant. In addition, the Right
of Repurchase shall lapse and all of the remaining Restricted Shares shall
become vested if (i) the Company is subject to a Change in Control before the
Optionee's Service terminates and (ii) the Right of Repurchase is not assigned
to the entity that employs the Optionee immediately after the Change in Control
or to its parent or subsidiary.

        (d) REPURCHASE COST. If the Company exercises the Right of Repurchase,
it shall pay the Optionee an amount equal to the Exercise Price for each of the
Restricted Shares being repurchased.

        (e) EXERCISE OF REPURCHASE RIGHT. The Right of Repurchase shall be
exercisable only by written notice delivered to the Optionee prior to the
expiration of the 60-day period specified in Subsection (b) above. The notice
shall set forth the date on which the repurchase is to be effected. Such date
shall not be more ' than 30 days after the date of the notice. The
certificate(s) representing the Restricted Shares to be repurchased shall, prior
to the close of business on the date specified for the repurchase, be delivered
to the Company properly endorsed for transfer. The Company shall, concurrently
with the receipt of such certificate(s), pay to the Optionee the purchase price
determined according to Subsection (d) above. Payment shall be made in cash or
cash equivalents or by canceling indebtedness to the Company incurred by the
Optionee in the purchase of the Restricted Shares. The Right of Repurchase shall
terminate with respect to any Restricted Shares for which it has not been timely
exercised pursuant to this Subsection (e).

        (f) ADDITIONAL SHARES OR SUBSTITUTED SECURITIES. In the event of the
declaration of a stock dividend, the declaration of an extraordinary dividend
payable in a form other than stock, a spin-off, a stock split, an adjustment in
conversion ratio, a recapitalization or a similar transaction affecting the
Company's outstanding securities without receipt of consideration, any new,
substituted or additional securities or other property (including money paid
other than as an ordinary cash dividend) which are by reason of such transaction
distributed with respect to any Restricted Shares or into which such Restricted
Shares thereby become convertible shall immediately be subject to the Right of
Repurchase. Appropriate adjustments to reflect the distribution of such
securities or property shall be made to the number and/or class of the
Restricted Shares. Appropriate adjustments she also, after each such
transaction, be made to the price per share to be paid upon the exercise of the
Right of Repurchase in order to reflect any change in the Company's outstanding
securities effected without receipt of consideration' therefor; provided,
however, that the aggregate purchase price payable for the Restricted Shares
shall remain the same.

        (g) TERMINATION OF RIGHTS AS SHAREHOLDER. If the Company makes
available, at the time and place and in the amount and form provided in this
Agreement, the consideration for the Restricted Shares to be repurchased in
accordance with this Section 7, then after such time the person from whom such
Restricted Shares are to be repurchased shall no longer have any rights as a
holder of such Restricted Shares (other than the right to receive payment of
such consideration in accordance with this Agreement). Such Restricted Shares
shall be deemed to 


                                       5


<PAGE>   6

have been repurchased in accordance with the applicable provisions hereof,
whether or not the certificates) therefor have been delivered as required by
this Agreement.

        (h) ESCROW. Upon issuance, the certificates for Restricted Shares shall
be deposited in escrow with the Company to be held in accordance with the
provisions of this Agreement. Any new, substituted or additional securities or
other property described in Subsection (f) above shall immediately be delivered
to the Company to be held in escrow, but only to the extent the Shares are at
the time Restricted Shares. All regular cash dividends on Restricted Shares (or
other securities at the time held in escrow) shall be paid directly to the
Optionee and shall not be held in escrow. Restricted Shares, together with any
other assets or securities held in escrow hereunder, shall be (i) surrendered to
the Company for repurchase and cancellation upon the Company's exercise of its
Right of Repurchase or Right of First Refusal or (ii) released to the Optionee
upon the Optionee's request to the extent the Shares are no longer Restricted
Shares (but not more frequently than once every six months). In any event, all
Shares which have vested (and any other vested assets and securities
attributable thereto) shall be released within 60 days after the earlier of (i)
the Optionee's cessation of Service or (ii) the lapse of the Right of First
Refusal.

SECTION 8. RIGHT OF FIRST REFUSAL.

        (a) RIGHT OF FIRST REFUSAL. In the event that the Optionee proposes to
sell, pledge or otherwise transfer to a third party any Shares acquired under
this Agreement, or any interest in such Shares, the Company shall have the Right
of First Refusal with respect to all (and not less than all) of such Shares. If
the Optionee desires to transfer Shares acquired under this Agreement, the
Optionee shall give a written Transfer Notice to the Company describing fully
the proposed transfer, including the number of Shares proposed to be
transferred, the proposed transfer price, the name and address of the proposed
Transferee and proof satisfactory to the Company that the proposed sale or
transfer will not violate any applicable federal or state securities laws. The
Transfer Notice shall be signed both by the Optionee and by the proposed
Transferee and must constitute a binding commitment of both parties to the
transfer of the Shares. The Company shah have the right to purchase all, and not
less than all, of the Shares on the terms of the proposal described in the
Transfer Notice (subject, however, to any change in such terms permitted under
Subsection (b) below) by delivery of a notice of exercise of the Right of First
Refusal within 30 days after the date when the Transfer Notice was received by
the Company. The Company's rights under this Subsection (a) shall be freely
assignable, in whole or in part.

        (b) TRANSFER OF SHARES. If the Company fails to exercise its Right of
First Refusal within 30 days after the date when it received the Transfer
Notice, the Optionee may, not later than 90 days following receipt of the
Transfer Notice by the Company, conclude a transfer of the Shares subject to the
Transfer Notice on the terms and conditions described in the Transfer Notice,
provided that any such sale is made in compliance with applicable federal and
state securities laws and not in violation of any other contractual restrictions
to which the Optionee is bound. Any proposed transfer on terms and conditions
different from those described in the Transfer Notice, as well as any subsequent
proposed transfer by the Optionee, shall again be subject to the Right of First
Refusal and shall require compliance with the procedure described in Subsection
(a) above. If the Company exercises its Right of First Refusal, the parties
shall 

                                       6


<PAGE>   7

consummate the sale of the Shares on the terms set forth in the Transfer Notice
within 60 days after the date when the Company received the Transfer Notice (or
within such longer period as may have been specified in the Transfer Notice);
provided, however, that in the event the Transfer Notice provided that payment
for the Shares was to be made in a form other than cash or cash equivalents paid
at the time of transfer, the Company shall have the option of paying for the
Shares with cash or cash equivalents equal to the present value of the
consideration described in the Transfer Notice.

        (c) ADDITIONAL SHARES OR SUBSTITUTED SECURITIES. In the event of the
declaration of a stock dividend, the declaration of an extraordinary dividend
payable in a form other than stock, a spin-off, a stock split, an adjustment in
conversion ratio, a recapitalization or a similar transaction affecting the
Company's outstanding securities without receipt of consideration, any new,
substituted or additional securities or other property (including money paid
other than as an ordinary cash dividend) which are by reason of such transaction
distributed with respect to any Shares subject to this Section 8 or into which
such Shares thereby become convertible shall immediately be subject to this
Section 8. Appropriate adjustments to reflect the distribution of such
securities or property shall be made to the number and/or class of the Shares
subject to this Section 8.

        (d) TERMINATION OF RIGHT OF FIRST REFUSAL. Any other provision of this
Section 8 notwithstanding, in the event that the Stock is readily tradable on an
established securities market when the Optionee desires to transfer Shares, the
Company shall have no Right of First Refusal, and the Optionee shall have no
obligation to comply with the procedures prescribed by Subsections (a) and (b)
above.

        (e) PERMITTED TRANSFERS. This Section 8 shall not apply to (i) a
transfer by beneficiary designation, will or intestate succession or (ii) a
transfer to the Optionee's spouse, children or to a trust established by the
Optionee for the benefit of the Optionee or the Optionee's spouse, children or
grandchildren, provided in either case that the Transferee agrees in writing on
a form prescribed by the Company to be bound by all provisions of this
Agreement. If the Optionee transfers any Shares acquired under this Agreement,
either under this Subsection (e) or after the Company has failed to exercise the
Right of First Refusal, then this Section 8 shall apply to the Transferee to the
same extent as to the Optionee.

        (f) TERMINATION OF RIGHTS AS SHAREHOLDER. If the Company makes
available, at the time and place and in the amount and form provided in this
Agreement, the consideration for the Shares to be purchased in accordance with
this Section 8, then after such time the person from whom such Shares are to be
purchased 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 to have been purchased in accordance
with the applicable provisions hereof, whether or not the certificates) therefor
have been delivered as required by this Agreement.

SECTION 9. LEGALITY OF INITIAL ISSUANCE.

        No Shares shall be issued upon the exercise of this option unless and
until the Company has determined that:


                                       7

<PAGE>   8

        (a) It and the Optionee have taken any actions required to register the
Shares under the Securities Act or to perfect an exemption from the registration
requirements thereof;

        (b) Any applicable listing requirement of any stock exchange or other
securities market on which Stock is listed has been satisfied; and

        (c) Any other applicable provision of state or federal law has been
satisfied.

SECTION 10. NO REGISTRATION RIGHTS.

        The Company may, but shall not be obligated to, register or qualify the
sale of Shares under the Securities Act or any other applicable law. The Company
shall not be obligated to take any affirmative action in order to cause the sale
of Shares under this Agreement to comply with any law.

SECTION 11. RESTRICTIONS ON TRANSFER.

        (a) SECURITIES LAW RESTRICTIONS. Regardless of whether the offering and
sale of Shares under the Plan have been registered under the Securities Act or
have been registered or qualified under the securities laws of any state, the
Company at its discretion may impose restrictions upon the sale, pledge or other
transfer of such Shares (including the placement of appropriate legends on stock
certificates or the imposition of stop-transfer instructions) if, in the
judgment of the Company, such restrictions are necessary or desirable in order
to achieve compliance with the Securities Act, the securities laws of any state
or any other law.

        (b) Market Stand-Off. In connection with any underwritten public
offering by the Company of its equity securities pursuant to an effective
registration statement filed under the Securities Act, including the Company's
initial public offering, the Optionee shall not directly or indirectly sell,
make any short sale of, loan, hypothecate, pledge, offer, grant or sell any
option or other contract for the purchase of, purchase any option or other
contract for the sale of, or otherwise dispose of or transfer, or agree to
engage in any of the foregoing transactions with respect to, any Shares acquired
under this Agreement without the prior written consent of the Company or its
underwriters. Such restriction (the "Market Stand-Off") shall be in effect for
such period of time following the date of the final prospectus for the offering
as may be requested by the Company or such underwriters. In no event, however,
shall such period exceed 180 days. The Market Stand-Off shall in any event
terminate two years after the date of the Company's initial public offering. In
the event of the declaration of a stock dividend, a spin-off, a stock split, an
adjustment in conversion ratio, a recapitalization or a similar transaction
affecting the Company's outstanding securities without receipt of consideration,
any new, substituted or additional securities which are by reason of such
transaction distributed with respect to any Shares subject to the Market
Stand-Off, or into which such Shares thereby become convertible, shall
immediately be subject to the Market Stand-Off. In order to enforce the Market
Stand-Off, the Company may impose stop-transfer instructions with respect to the
Shares acquired under this Agreement until the end of the applicable stand-off
period. The Company's underwriters shall be beneficiaries of the agreement set
forth in this Subsection (b). This Subsection (b) shall not apply to Shares
registered in the public offering under the Securities Act, 


                                       8


<PAGE>   9

and the Optionee shall be subject to this Subsection (b) only if the directors
and officers of the Company are subject to similar arrangements.

        (c) INVESTMENT INTENT AT GRANT. The Optionee represents and agrees that
the Shares to be acquired upon exercising this option will be acquired for
investment, and not with a view to the sale or distribution thereof.

        (d) INVESTMENT INTENT AT EXERCISE. In the event that the sale of Shares
under the Plan is not registered under the Securities Act but an exemption is
available which requires an investment representation or other representation,
the Optionee shall represent and agree at the time of exercise that the Shares
being acquired upon exercising this option are being acquired for investment,
and not with a view to the sale or distribution thereof, and shall make such
other representations as are deemed necessary or appropriate by the Company and
its counsel.

        (e) LEGENDS. All certificates evidencing Shares purchased under this
Agreement shall bear the following legend:

        "THE SHARES REPRESENTED HEREBY MAY NOT BE SOLD, ASSIGNED, TRANSFERRED,
        ENCUMBERED OR IN ANY MANNER DISPOSED OF, EXCEPT IN COMPLIANCE WITH THE
        TERMS OF A WRITTEN AGREEMENT BETWEEN THE COMPANY AND THE REGISTERED
        HOLDER OF THE SHARES (OR THE PREDECESSOR IN INTEREST TO THE SHARES).
        SUCH AGREEMENT GRANTS TO THE COMPANY CERTAIN RIGHTS OF FIRST REFUSAL
        UPON AN ATTEMPTED TRANSFER OF THE SHARES AND CERTAIN REPURCHASE RIGHTS
        UPON TERMINATION OF SERVICE WITH THE COMPANY. THE SECRETARY OF THE
        COMPANY WELL UPON WRITTEN REQUEST FURNISH A COPY OF SUCH AGREEMENT TO
        THE HOLDER HEREOF WITHOUT CHARGE."

        All certificates evidencing Shares purchased under this Agreement in an
unregistered transaction shall bear the following legend (and such other
restrictive legends as are required or deemed advisable under the provisions of
any applicable law):

        "THE SHARES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
        SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED, OR
        OTHERWISE TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION THEREOF UNDER
        SUCH ACT OR AN OPINION OF COUNSEL, SATISFACTORY TO THE COMPANY AND ITS
        COUNSEL, THAT SUCH REGISTRATION IS NOT REQUIRED."

        (f) REMOVAL OF LEGENDS. If, in the opinion of the Company and its
counsel, any legend placed on a stock certificate representing Shares sold under
this Agreement is no longer required, the holder of such certificate shall be
entitled to exchange such certificate for a certificate representing the same
number of Shares but without such legend.


                                       9

<PAGE>   10

        (g) ADMINISTRATION. Any determination by the Company and its counsel in
connection with any of the matters set forth in this Section 11 shall be
conclusive and binding on the Optionee and all other persons.

SECTION 12. ADJUSTMENT OF SHARES.

        In the event of any transaction described in Section 8(a) of the Plan,
the terms of this option (including, without limitation, the number and kind of
Shares subject to this option and the Exercise Price) shall be adjusted as set
forth in Section 8(a) of the Plan. In the event that the Company is a party to a
merger or consolidation, this option shall be subject to the agreement of merger
or consolidation, as provided in Section 8(b) of the Plan.

SECTION 13. MISCELLANEOUS PROVISIONS.

        (a) RIGHTS AS A SHAREHOLDER. Neither the Optionee nor the Optionee's
representative shall have any rights as a shareholder with respect to any Shares
subject to this option until the Optionee or the Optionee's representative
becomes entitled to receive such Shares by filing a notice of exercise and
paying the Purchase Price pursuant to Sections 4 and 5.

        (b) NO RETENTION RIGHTS. Nothing in this option or in the Plan shall
confer upon the 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 Company (or any Parent or Subsidiary employing or retaining the Optionee)
or of the Optionee, which rights are hereby expressly reserved by each, to
terminate his or her Service at any time and for any reason, with or without
cause.

        (c) NOTICE. Any notice required by the terms of this Agreement shall be
given in writing and shall be deemed effective upon personal delivery or upon
deposit with the United States Postal Service, by registered or certified mail,
with postage and fees prepaid. Notice shall be addressed to the Company at its
principal executive office and to the Optionee at the address that he or she
most recently provided to the Company.

        (d) ENTIRE AGREEMENT. The Notice of Stock Option Grant, this Agreement
and the Plan constitute the entire contract between the parties hereto with
regard to the subject matter hereof. They supersede any other agreements,
representations or understandings (whether oral or written and whether express
or implied) which relate to the subject matter hereof.

        (e) CHOICE OF LAW. This Agreement shall be governed by, and construed in
accordance with, the laws of the State of California, as such laws are applied
to contracts entered into and performed in such State.

SECTION 14. DEFINITIONS.

        (a) "AGREEMENT" shall mean this Stock Option Agreement.

        (b) "BOARD OF DIRECTORS" shall mean the Board of Directors of the
Company, as constituted from time to time or, if a Committee has been appointed,
such Committee.

        (c) "CHANGE IN CONTROL" shall mean:


                                       10

<PAGE>   11

                (i) The consummation of a merger or consolidation of the Company
        with or into another entity or any other corporate reorganization, if
        more than 50% of the combined voting power of the continuing or
        surviving entity's securities outstanding immediately after such merger,
        consolidation or other reorganization is owned by persons who were not
        shareholders of the Company immediately prior to such merger,
        consolidation or other reorganization; or

                (ii) The sale, transfer or other disposition of all or
        substantially all of the Company's assets.

        A transaction shall not constitute a Change in Control if its sole
purpose is to change the state of the Company's incorporation or to create a
holding company that will be owned in substantially the same proportions by the
persons who held the Company's securities immediately before such transaction.

        (d) "CODE" shall mean the Internal Revenue Code of 1986, as amended.

        (e) "COMMITTEE" shall mean a committee of the Board of Directors, as
described in Section 2 of the Plan.

        (f) "COMPANY" shall mean iManage, Inc., a California corporation.

        (g) "CONSULTANT" shall mean a person who performs bona fide services for
the Company, a Parent or a Subsidiary as a consultant or advisor, excluding
Employees and Outside Directors.

        (h) "DATE OF GRANT" shall mean the date specified in the Notice of Stock
Option Grant, which date shall be the later of (i) the date on which the Board
of Directors resolved to grant this option or (ii) the first day of the
Optionee's Service.

        (i) "DISABILITY" shall mean that the Optionee is unable to engage in any
substantial gainful activity by reason of any medically determinable physical or
mental impairment

        (j) "EMPLOYEE" shall mean any individual who is a common-law employee of
the Company, a Parent or a Subsidiary.

        (k) "EXERCISE PRICE" shall mean the amount for which one Share may be
purchased upon exercise of this option, as specified in the Notice of Stock
Option Grant.

        (l) "FAIR MARKET VALUE" shall mean the fair market value of a Share, as
determined by the Board of Directors in good faith. Such determination shall be
conclusive and binding on all persons.

        (m) "ISO" shall mean an employee incentive stock option described in
Section 422(b) of the Code.

        (n) "NONSTATUTORY OPTION" shall mean a stock option not described in
Sections 422(b) or 423(b) of the Code.


                                       11

<PAGE>   12

        (o) "NOTICE OF STOCK OPTION GRANT" shall mean the document so entitled
to which this Agreement is attached.

        (p) "OPTIONEE" shall mean the individual named in the Notice of Stock
Option Grant.

        (q) "OUTSIDE DIRECTOR" shall mean a member of the Board of Directors who
is not an Employee.

        (r) "PARENT" shall mean any corporation (other than the Company) in an
unbroken chain of corporations ending with the Company, if each of the
corporations other than the Company owns stock possessing 50% or more of the
total combined voting power of all classes of stock in one of the other
corporations in such chain.

        (s) "PLAN" shall mean the iManage, Inc. 1997 Stock Plan, as in effect on
the Date of Grant.

        (t) "PURCHASE PRICE" shall mean the Exercise Price multiplied by the
number of Shares with respect to which this option is being exercised.

        (u) "RESTRICTED SHARE" shall mean a Share that is subject to the Right
of Repurchase.

        (v) "RIGHT OF FIRST REFUSAL" shall mean the Company's right of first
refusal described in Section 8.

        (w) "RIGHT OF REPURCHASE" shall mean the Company's right of repurchase
described in Section 7.

        (x) "SECURITIES ACT" shall mean the Securities Act of 1933, as amended.

        (y) "SERVICE" shall mean service as an Employee, Outside Director or
Consultant.

        (z) "SHARE" shall mean one share of Stock, as adjusted in accordance
with Section 8 of the Plan (if applicable).

        (aa) "STOCK" shall mean the Common Stock of the Company.

        (bb) "SUBSIDIARY" shall mean any corporation (other than the Company) in
an unbroken chain of corporations beginning with the Company, if each of the
corporations other than the last corporation in the unbroken chain owns stock
possessing 50% or more of the total combined voting power of all classes of
stock in one of the other corporations in such chain.

        (cc) "TRANSFEREE" shall mean any person to whom the Optionee has
directly or indirectly transferred any Share acquired under this Agreement.

        (dd) "TRANSFER NOTICE" shall mean the notice of a proposed transfer of
Shares described in Section 8.


                                       12

<PAGE>   1
                                                                    EXHIBIT 99.6


                               CISCO SYSTEMS, INC.

                        STOCK OPTION ASSUMPTION AGREEMENT
                                 PIPELINKS, INC.
                             1997 STOCK OPTION PLAN


OPTIONEE:  ((Employee))

               STOCK OPTION ASSUMPTION AGREEMENT effective as of the 4th day of
March, 1999 by Cisco Systems, Inc., a California corporation ("Cisco").

               WHEREAS, the undersigned individual ("Optionee") holds one or
more outstanding options to purchase shares of the common stock of Pipelinks,
Inc., a California corporation ("Pipelinks"), which were granted to Optionee
under the Pipelinks, Inc. 1997 Stock Option Plan (the "Plan") and are each
evidenced by the following agreement between Pipelinks and Optionee: a Stock
Option Agreement (the "Option Agreement").

               WHEREAS, Pipelinks has been acquired by Cisco through the merger
of Pipelinks with and into Cisco (the "Merger") pursuant to the Amended and
Restated Agreement and Plan of Reorganization dated March 4, 1999 by and between
Cisco and Pipelinks (the "Reorganization Agreement").

               WHEREAS, the provisions of the Reorganization Agreement require
Cisco to assume all obligations of Pipelinks under all outstanding options under
the Plan at the consummation of the Merger and to issue to the holder of each
outstanding option an agreement evidencing the assumption of such option.

               WHEREAS, pursuant to the provisions of the Reorganization
Agreement, the exchange ratio (the "Exchange Ratio") in effect for the Merger is
0.100248 of a share of Cisco common stock ("Cisco Stock") for each outstanding
share of Pipelinks common stock ("Pipelinks Stock").

               WHEREAS, this Agreement is effective as of the consummation of
the Merger (the "Effective Time") in order to reflect certain adjustments to
Optionee's outstanding options under the Plan which have become necessary by
reason of the assumption of those options by Cisco in connection with the
Merger.

               NOW, THEREFORE, it is hereby agreed as follows:

               1. The number of shares of Pipelinks Stock subject to the options
held by Optionee immediately prior to the Effective Time (the "Pipelinks
Options") and the exercise price payable per share are set forth in Exhibit(s) A
hereto. Cisco hereby assumes, as of the Effective Time, all the duties and
obligations of Pipelinks under each of the Pipelinks Options. In connection with
such assumption, the number of shares of Cisco Stock purchasable under each 


<PAGE>   2



Pipelinks Option hereby assumed and the exercise price payable thereunder have
been adjusted to reflect the Exchange Ratio. Accordingly, the number of shares
of Cisco Stock subject to each Pipelinks Option hereby assumed shall be as
specified for that option in attached Exhibit(s) A, and the adjusted exercise
price payable per share of Cisco Stock under the assumed Pipelinks Option shall
also be as indicated for that option in attached Exhibit(s) A.

               2. The intent of the foregoing adjustments to each assumed
Pipelinks Option is to assure that the spread between the aggregate fair market
value of the shares of Cisco Stock purchasable under each such option and the
aggregate exercise price as adjusted pursuant to this Agreement will,
immediately after the consummation of the Merger, be not less than the spread
which existed, immediately prior to the Merger, between the then aggregate fair
market value of the Pipelinks Stock subject to the Pipelinks Option and the
aggregate exercise price in effect at such time under the Option Agreement. Such
adjustments are also intended to preserve, immediately after the Merger, on a
per share basis, the same ratio of exercise price per option share to fair
market value per share which existed under the Pipelinks Option immediately
prior to the Merger. Such adjustments are also intended to preserve, to the
extent applicable, the Incentive Stock Option status of the assumed Pipelinks
Options.

               3. The following provisions shall govern each Pipelinks Option
hereby assumed by Cisco:

                        (a) Unless the context otherwise requires, all
                references in each Option Agreement and in the Plan (as
                incorporated into such Option Agreement) (i) to the "Company"
                shall mean Cisco, (ii) to "Stock" shall mean shares of Cisco
                Stock, (iii) to the "Board" shall mean the Board of Directors of
                Cisco and (iv) to the "Committee" shall mean the Compensation
                Committee of the Cisco Board of Directors.

                        (b) The grant date and the expiration date of each
                assumed Pipelinks Option and all other provisions which govern
                either the exercise or the termination of the assumed Pipelinks
                Option shall remain the same as set forth in the Option
                Agreement applicable to that option, and the provisions of the
                Option Agreement shall accordingly govern and control Optionee's
                rights under this Agreement to purchase Cisco Stock.

                        (c) Pursuant to the terms of the Option Agreement, none
                of your options assumed by Cisco in connection with the
                transaction will terminate and cease to outstanding upon the
                consummation of the Merger. Each Pipelinks Option shall be
                assumed by Cisco as of the Effective Time. Each such assumed
                Pipelinks Option shall thereafter continue to vest for any
                remaining unvested shares of Cisco Stock subject to that option
                in accordance with the same installment vesting schedule in
                effect under the applicable Option Agreement immediately prior
                to the Effective Time; provided, however, that the number of




                                       2.

<PAGE>   3


                shares subject to each such installment shall be adjusted to
                reflect the Exchange Ratio.

                        (d) For purposes of applying any and all provisions of
                the Option Agreement and the Plan relating to Optionee's status
                as an employee or a consultant of Pipelinks, Optionee shall be
                deemed to continue in such status as an employee or a consultant
                for so long as Optionee renders services as an employee or a
                consultant to Cisco or any present or future Cisco subsidiary.
                Accordingly, the provisions of the Option Agreement governing
                the termination of the assumed Pipelinks Options upon Optionee's
                cessation of service as an employee or a consultant of Pipelinks
                shall hereafter be applied on the basis of Optionee's cessation
                of employee or consultant status with Cisco and its
                subsidiaries, and each assumed Pipelinks Option shall
                accordingly terminate, within the designated time period in
                effect under the Option Agreement for that option, following
                such cessation of service as an employee or a consultant of
                Cisco and its subsidiaries.

                        (e) The adjusted exercise price payable for the Cisco
                Stock subject to each assumed Pipelinks Option shall be payable
                in any of the forms authorized under the Option Agreement
                applicable to that option. For purposes of determining the
                holding period of any shares of Cisco Stock delivered in payment
                of such adjusted exercise price, the period for which such
                shares were held as Pipelinks Stock prior to the Merger shall be
                taken into account.

                        (f) In order to exercise each assumed Pipelinks Option,
                Optionee must deliver to Cisco a written notice of exercise in
                which the number of shares of Cisco Stock to be purchased
                thereunder must be indicated. The exercise notice must be
                accompanied by payment of the adjusted exercise price payable
                for the purchased shares of Cisco Stock and should be delivered
                to Cisco at the following address:

                         Cisco Systems, Inc.
                         255 West Tasman Drive, Building J
                         San Jose, CA 95134
                         Attention: Option Plan Administrator

               4. Except to the extent specifically modified by this Option
Assumption Agreement, all of the terms and conditions of each Option Agreement
as in effect immediately prior to the Merger shall continue in full force and
effect and shall not in any way be amended, revised or otherwise affected by
this Stock Option Assumption Agreement.


                                       3.
<PAGE>   4



               IN WITNESS WHEREOF, Cisco Systems, Inc. has caused this Stock
Option Assumption Agreement to be executed on its behalf by its duly-authorized
officer as of the 9th day of March, 1999.




                                            CISCO SYSTEMS, INC.

                                            By: /s/ LARRY R. CARTER
                                                --------------------------------
                                                    Larry R. Carter
                                                    Corporate Secretary




                                 ACKNOWLEDGMENT


               The undersigned acknowledges receipt of the foregoing Stock
Option Assumption Agreement and understands that all rights and liabilities with
respect to each of his or her Pipelinks Options hereby assumed by Cisco are as
set forth in the Option Agreement, the Plan and such Stock Option Assumption
Agreement.


                                            ------------------------------------
                                            ((EMPLOYEE)), OPTIONEE



DATED:             , 1999
      -------------



                                       4.

<PAGE>   1
                                                                    EXHIBIT 99.7

                               CISCO SYSTEMS, INC.

                        STOCK OPTION ASSUMPTION AGREEMENT
                        1997 PIPELINKS STOCK OPTION PLAN
                            & FORMER IMANAGE OPTIONS


OPTIONEE:  ((Employee))

               STOCK OPTION ASSUMPTION AGREEMENT effective as of the 4th day of
March, 1999 by Cisco Systems, Inc., a California corporation ("Cisco").

               WHEREAS, the undersigned individual ("Optionee") holds one or
more outstanding options to purchase shares of the common stock of Pipelinks,
Inc., a California corporation ("Pipelinks"), which were granted to Optionee
either under the 1997 iManage Stock Option Plan, as assumed by Pipelinks, or
under the Pipelinks 1997 Stock Option Plan (collectively, the "Plans") and are
each evidenced by the following agreements: (i) a Stock Option Agreement between
either iManage, Inc. ("iManage") or Pipelinks and optionee (the "Option
Agreement") and, with respect to an iManage option, (ii) an Assumption Agreement
between Pipelinks and Optionee.

               WHEREAS, Pipelinks has been acquired by Cisco through the merger
of Pipelinks with and into Cisco (the "Merger") pursuant to the Amended and
Restated Agreement and Plan of Reorganization dated March 4, 1999 by and between
Cisco and Pipelinks (the "Reorganization Agreement").

               WHEREAS, the provisions of the Reorganization Agreement require
Cisco to assume all obligations of Pipelinks under all outstanding options under
the Plan at the consummation of the Merger and to issue to the holder of each
outstanding option an agreement evidencing the assumption of such option.

               WHEREAS, pursuant to the provisions of the Reorganization
Agreement, the exchange ratio (the "Exchange Ratio") in effect for the Merger is
0.100248 of a share of Cisco common stock ("Cisco Stock") for each outstanding
share of Pipelinks common stock ("Pipelinks Stock").

               WHEREAS, this Agreement is to become effective immediately upon
the consummation of the Merger (the "Effective Time") in order to reflect
certain adjustments to Optionee's outstanding options under the Plan which have
become necessary by reason of the assumption of those options by Cisco in
connection with the Merger.

               NOW, THEREFORE, it is hereby agreed as follows:

               1. The number of shares of Pipelinks Stock subject to the options
held by Optionee immediately prior to the Effective Time (the "Pipelinks
Options") and the exercise price payable per share are set forth in Exhibit A
hereto. Cisco hereby assumes, as of the 


<PAGE>   2


Effective Time, all the duties and obligations of Pipelinks under each of the
Pipelinks Options. In connection with such assumption, the number of shares of
Cisco Stock purchasable under each Pipelinks Option hereby assumed and the
exercise price payable thereunder have been adjusted to reflect the Exchange
Ratio. Accordingly, the number of shares of Cisco Stock subject to each
Pipelinks Option hereby assumed shall be as specified for that option in
attached Exhibit A, and the adjusted exercise price payable per share of Cisco
Stock under the assumed Pipelinks Option shall also be as indicated for that
option in attached Exhibit A.

               2. The intent of the foregoing adjustments to each assumed
Pipelinks Option is to assure that the spread between the aggregate fair market
value of the shares of Cisco Stock purchasable under each such option and the
aggregate exercise price as adjusted pursuant to this Agreement will,
immediately after the consummation of the Merger, be not less than the spread
which existed, immediately prior to the Merger, between the then aggregate fair
market value of the Pipelinks Stock subject to the Pipelinks Option and the
aggregate exercise price in effect at such time under the Option Agreement. Such
adjustments are also intended to preserve, immediately after the Merger, on a
per share basis, the same ratio of exercise price per option share to fair
market value per share which existed under the Pipelinks Option immediately
prior to the Merger.

               3. The following provisions shall govern each Pipelinks Option
hereby assumed by Cisco:

                        (a) Unless the context otherwise requires, all
                references in each Option Agreement, the Pipelinks Assumption
                Agreement and in the Plan (as incorporated into such Option
                Agreement) (i) to the "Company" shall mean Cisco, (ii) to
                "Stock" shall mean shares of Cisco Stock, (iii) to the "Board"
                shall mean the Board of Directors of Cisco and (iv) to the
                "Committee" shall mean the Compensation Committee of the Cisco
                Board of Directors.

                        (b) The grant date and the expiration date of each
                assumed Pipelinks Option and all other provisions which govern
                either the exercise or the termination of the assumed Pipelinks
                Option shall remain the same as set forth in the Option
                Agreement and the Pipelinks Assumption Agreement applicable to
                that option, and the provisions of the Option Agreement and the
                Pipelinks Assumption Agreement shall accordingly govern and
                control Optionee's rights under this Agreement to purchase Cisco
                Stock.

                        (c) Pursuant to the terms of the Option Agreement, none
                of your options assumed by Cisco in connection with the
                transaction will vest or become exercisable on an accelerated
                basis upon the consummation of the Merger. Each Pipelinks Option
                shall be assumed by Cisco as of the Effective Time. Each such
                assumed Pipelinks Option shall thereafter continue to vest for
                any remaining unvested shares of Cisco Stock subject to that
                option in accordance with the same installment vesting schedule
                in effect under the applicable Option

                                       2.



<PAGE>   3
                Agreement immediately prior to the Effective Time; provided,
                however, that the number of shares subject to each such
                installment shall be adjusted to reflect the Exchange Ratio.

                        (d) For purposes of applying any and all provisions of
                the Option Agreement, the Pipelinks Assumption Agreement and the
                Plan relating to Optionee's status as an employee or a
                consultant of Pipelinks, Optionee shall be deemed to continue in
                such status as an employee or a consultant for so long as
                Optionee renders services as an employee or a consultant to
                Cisco or any present or future Cisco subsidiary. Accordingly,
                the provisions of the Option Agreement and the Pipelinks
                Assumption Agreement governing the termination of the assumed
                Pipelinks Options upon Optionee's cessation of service as an
                employee or a consultant of Pipelinks shall hereafter be applied
                on the basis of Optionee's cessation of employee or consultant
                status with Cisco and its subsidiaries, and each assumed
                Pipelinks Option shall accordingly terminate, within the
                designated time period in effect under the Option Agreement for
                that option, following such cessation of service as an employee
                or a consultant of Cisco and its subsidiaries.

                        (e) The adjusted exercise price payable for the Cisco
                Stock subject to each assumed Pipelinks Option shall be payable
                in any of the forms authorized under the Option Agreement
                applicable to that option. For purposes of determining the
                holding period of any shares of Cisco Stock delivered in payment
                of such adjusted exercise price, the period for which such
                shares were held as Pipelinks Stock and/or as iManage stock
                prior to the Merger shall be taken into account.

                        (f) In order to exercise each assumed Pipelinks Option,
                Optionee must deliver to Cisco a written notice of exercise in
                which the number of shares of Cisco Stock to be purchased
                thereunder must be indicated. The exercise notice must be
                accompanied by payment of the adjusted exercise price payable
                for the purchased shares of Cisco Stock and should be delivered
                to Cisco at the following address:

                             Cisco Systems, Inc.
                        255 West Tasman Drive, Building J
                             San Jose, CA 95134
                      Attention: Option Plan Administrator

               4. Except to the extent specifically modified by this Option
Assumption Agreement, all of the terms and conditions of each Option Agreement
and Pipelinks Assumption Agreement as in effect immediately prior to the Merger
shall continue in full force and effect and shall not in any way be amended,
revised or otherwise affected by this Stock Option Assumption Agreement.


                                       3.
<PAGE>   4



               IN WITNESS WHEREOF, Cisco Systems, Inc. has caused this Stock
Option Assumption Agreement to be executed on its behalf by its duly-authorized
officer as of the __ day of March, 1999.




                                            CISCO SYSTEMS, INC.

                                            By:  /s/ LARRY R. CARTER
                                                 -------------------------------
                                                    Larry R. Carter
                                                    Corporate Secretary





                                 ACKNOWLEDGMENT


               The undersigned acknowledges receipt of the foregoing Stock
Option Assumption Agreement and understands that all rights and liabilities with
respect to each of his or her Pipelinks Options hereby assumed by Cisco are as
set forth in the Option Agreement, the Plan and such Stock Option Assumption
Agreement.


                                            ----------------------------------
                                            ((EMPLOYEE)), OPTIONEE



DATED:            , 1999
      -----------


                                       4.



<PAGE>   5

                                    EXHIBIT A

                Optionee's Outstanding Options to Purchase Shares
                               of Pipelinks, Inc.
                            Common Stock (Pre-Merger)
                                       and
                Optionee's Outstanding Options to Purchase Shares
                             of Cisco Systems, Inc.
                           Common Stock (Post-Merger)




<PAGE>   1

                                                                    EXHIBIT 99.8

                               CISCO SYSTEMS, INC.

                        STOCK OPTION ASSUMPTION AGREEMENT
                        1997 PIPELINKS STOCK OPTION PLAN
                             AND INDEPENDENT OPTIONS


OPTIONEE: Employee

     STOCK OPTION ASSUMPTION AGREEMENT effective as of the 4th day of March,
1999 by Cisco Systems, Inc., a California corporation ("Cisco").

     WHEREAS, the undersigned individual ("Optionee") holds one or more
outstanding options to purchase shares of the common stock of Pipelinks, Inc., a
California corporation ("Pipelinks"), which were granted to Optionee either
directly by Pipelinks independent of an option plan, or under the Pipelinks 1997
Stock Option Plan ( the "Plan") and are each evidenced by a Stock Option
Agreement (the "Option Agreement").

     WHEREAS, Pipelinks has been acquired by Cisco through the merger of
Pipelinks with and into Cisco (the "Merger") pursuant to the Amended and
Restated Agreement and Plan of Reorganization dated March 4, 1999 by and between
Cisco and Pipelinks (the "Reorganization Agreement").

     WHEREAS, the provisions of the Reorganization Agreement require Cisco to
assume all obligations of Pipelinks under all outstanding options under the Plan
at the consummation of the Merger and to issue to the holder of each outstanding
option an agreement evidencing the assumption of such option.

     WHEREAS, pursuant to the provisions of the Reorganization Agreement, the
exchange ratio (the "Exchange Ratio") in effect for the Merger is 0.100248 of a
share of Cisco common stock ("Cisco Stock") for each outstanding share of
Pipelinks common stock ("Pipelinks Stock").

     WHEREAS, this Agreement is to become effective immediately upon the
consummation of the Merger (the "Effective Time") in order to reflect certain
adjustments to Optionee's outstanding options which have become necessary by
reason of the assumption of those options by Cisco in connection with the
Merger.

     NOW, THEREFORE, it is hereby agreed as follows:

     1.   The number of shares of Pipelinks Stock subject to the options held by
Optionee immediately prior to the Effective Time (the "Pipelinks Options") and
the exercise price payable per share are set forth in Exhibit(s) A hereto. Cisco
hereby assumes, as of the Effective Time, all the duties and obligations of
Pipelinks under each of the Pipelinks Options. In connection with such
assumption, the number of shares of Cisco Stock purchasable under each Pipelinks
Option hereby assumed and the exercise price payable thereunder have been
adjusted 


<PAGE>   2

to reflect the Exchange Ratio. Accordingly, the number of shares of Cisco Stock
subject to each Pipelinks Option hereby assumed shall be as specified for that
option in attached Exhibit(s) A, and the adjusted exercise price payable per
share of Cisco Stock under the assumed Pipelinks Option shall also be as
indicated for that option in attached Exhibit(s) A. 

     2.   The intent of the foregoing adjustments to each assumed Pipelinks 
Option is to assure that the spread between the aggregate fair market value of
the shares of Cisco Stock purchasable under each such option and the aggregate
exercise price as adjusted pursuant to this Agreement will, immediately after
the consummation of the Merger, be not less than the spread which existed,
immediately prior to the Merger, between the then aggregate fair market value of
the Pipelinks Stock subject to the Pipelinks Option and the aggregate exercise
price in effect at such time under the Option Agreement. Such adjustments are
also intended to preserve, immediately after the Merger, on a per share basis,
the same ratio of exercise price per option share to fair market value per share
which existed under the Pipelinks Option immediately prior to the Merger. 

     3.   The following provisions shall govern each Pipelinks Option hereby 
assumed by Cisco:

          (a)  Unless the context otherwise requires, all references in each 
Option Agreement and, if applicable, in the Plan (as incorporated into such
Option Agreement) (i) to the "Company" shall mean Cisco, (ii) to "Stock" shall
mean shares of Cisco Stock, (iii) to the "Board" shall mean the Board of
Directors of Cisco and (iv) to the "Committee" shall mean the Compensation
Committee of the Cisco Board of Directors. 

          (b)  The grant date and the expiration date of each assumed Pipelinks 
Option and all other provisions which govern either the exercise or the
termination of the assumed Pipelinks Option shall remain the same as set forth
in the Option Agreement applicable to that option, and the provisions of the
Option Agreement shall accordingly govern and control Optionee's rights under
this Agreement to purchase Cisco Stock. 

          (c)  Pursuant to the terms of the Option Agreement, none of your 
options assumed by Cisco in connection with the transaction will terminate and
cease to outstanding upon the consummation of the Merger. Each Pipelinks Option
shall be assumed by Cisco as of the Effective Time. Each such assumed Pipelinks
Option shall thereafter continue to vest for any remaining unvested shares of
Cisco Stock subject to that option in accordance with the same installment
vesting schedule in effect under the applicable Option Agreement immediately
prior to the Effective Time; provided, however, that the number of shares
subject to each such installment shall be adjusted to reflect the Exchange
Ratio. 


                                       2

<PAGE>   3

          (d)  For purposes of applying any and all provisions of the Option 
Agreement and/or the Plan relating to Optionee's status as an employee or a
consultant of Pipelinks, Optionee shall be deemed to continue in such status as
an employee or a consultant for so long as Optionee renders services as an
employee or a consultant to Cisco or any present or future Cisco subsidiary.
Accordingly, the provisions of the Option Agreement governing the termination of
the assumed Pipelinks Options upon Optionee's cessation of service as an
employee or a consultant of Pipelinks shall hereafter be applied on the basis of
Optionee's cessation of employee or consultant status with Cisco and its
subsidiaries, and each assumed Pipelinks Option shall accordingly terminate,
within the designated time period in effect under the Option Agreement for that
option, following such cessation of service as an employee or a consultant of
Cisco and its subsidiaries. 

          (e)  The adjusted exercise price payable for the Cisco Stock subject 
to each assumed Pipelinks Option shall be payable in any of the forms authorized
under the Option Agreement applicable to that option. For purposes of
determining the holding period of any shares of Cisco Stock delivered in payment
of such adjusted exercise price, the period for which such shares were held as
Pipelinks Stock prior to the Merger shall be taken into account. 

          (f)  In order to exercise each assumed Pipelinks Option, Optionee must
deliver to Cisco a written notice of exercise in which the number of shares of
Cisco Stock to be purchased thereunder must be indicated. The exercise notice
must be accompanied by payment of the adjusted exercise price payable for the
purchased shares of Cisco Stock and should be delivered to Cisco at the
following address: 

               Cisco Systems, Inc. 
               255 West Tasman Drive, Building J 
               San Jose, CA 95134 
               Attention: Option Plan Administrator

     4.   Except to the extent specifically modified by this Option Assumption 
Agreement, all of the terms and conditions of each Option Agreement as in effect
immediately prior to the Merger shall continue in full force and effect and
shall not in any way be amended, revised or otherwise affected by this Stock
Option Assumption Agreement. 


                                       3

<PAGE>   4

     IN WITNESS WHEREOF, Cisco Systems, Inc. has caused this Stock Option 
Assumption Agreement to be executed on its behalf by its duly-authorized officer
as of the 4th day of March, 1999.


                                        CISCO SYSTEMS, INC.

                                        By: /s/ LARRY R. CARTER
                                           -----------------------
                                           Larry R. Carter
                                           Corporate Secretary



                                 ACKNOWLEDGMENT


     The undersigned acknowledges receipt of the foregoing Stock Option
Assumption Agreement and understands that all rights and liabilities with
respect to each of his or her Pipelinks Options hereby assumed by Cisco are as
set forth in the Option Agreement, the Plan, as applicable, and such Stock
Option Assumption Agreement.



                                        --------------------------
                                        EMPLOYEE, OPTIONEE



DATED: __________________, 1999



                                        4

<PAGE>   1

                                                                   EXHIBIT 99.9


THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE NOT BEEN QUALIFIED
WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE
ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE
CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE
OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF
THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT
ARE EXPRESSLY CONDITIONED UPON SUCH QUALIFICATION BEING OBTAINED, UNLESS THE
SALE IS SO EXEMPT.

THE SECURITY REPRESENTED BY THIS CERTIFICATE HAS BEEN ACQUIRED FOR INVESTMENT
AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF.
NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION
STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.


                                 PIPELINKS, INC.
                             IMMEDIATELY EXERCISABLE
                       NONSTATUTORY STOCK OPTION AGREEMENT


        THIS IMMEDIATELY EXERCISABLE NONSTATUTORY STOCK OPTION AGREEMENT (the
"OPTION AGREEMENT") is made and entered into as of the Date of Grant by and
between PipeLinks, Inc. and (the "OPTIONEE").

        The Company has granted to the Optionee an option to purchase certain
shares of Stock, upon the terms and conditions set forth in this Option
Agreement (the "OPTION").

        1. DEFINITIONS AND CONSTRUCTION.

                1.1 DEFINITIONS. Whenever used herein, the following terms shall
have their respective meanings set forth below:

                        (a) "DATE OF OPTION GRANT" means November 20, 1998.

                        (b) "NUMBER OF OPTION SHARES" means           shares of 
Stock, as adjusted from time to time pursuant to Section 9.

                        (c) "EXERCISE PRICE" means $2.25 per share of Stock, as
adjusted from time to time pursuant to Section 9.

                        (d) "INITIAL EXERCISE DATE" means the Date of Option
Grant.


                                       1

<PAGE>   2

                        (e) "INITIAL VESTING DATE" means the date occurring one
(1) year after the Date of Option Grant.

                        (f) "VESTED RATIO" means, on any relevant date, the
ratio determined as follows:
<TABLE>
<CAPTION>

                                                                                Vested Ratio
                                                                                ------------
<S>                                                                             <C>
               Prior to Initial Vesting Date                                           0

               On Initial Vesting Date, provided the Optionee's                      1/4
               Service has not terminated prior to such date

               Plus

               For each full month of the Optionee's continuous Service              1/48
               from the Initial Vesting Date until the Vested Ratio equals 1/1,
               an additional
</TABLE>

                        (g) "OPTION EXPIRATION DATE" means the date ten (10)
years after the Date of Option Grant.

                        (h) "BOARD" means the Board of Directors of the Company.
If one or more Committees have been appointed by the Board to administer the
Plan, "BOARD" also means such Committee(s).

                        (i) "CODE" means the Internal Revenue Code of 1986, as
amended, and any applicable regulations promulgated thereunder.

                        (j) "CONSULTANT" means any person, including an advisor,
engaged by a Participating Company to render services other than as an Employee
or a Director.

                        (k) "DIRECTOR" means a member of the Board or of the
board of directors of any other Participating Company.

                        (l) "DISABILITY" means the inability of the Optionee, in
the opinion of a qualified physician acceptable to the Company, to perform the
major duties of the Optionee's position with the Participating Company group
because of the sickness or injury of the Optionee.

                        (m) "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating Company and who is an employee for purposes of
Section 422 of the Code; provided, however, 


                                       2


<PAGE>   3

that neither service as a Director nor payment of a director's fee shall be
sufficient to constitute employment for purposes of the Option Agreement.

                        (n) "EXCHANGE ACT" means the Securities Exchange Act of
1934, as amended.

                        (o) "FAIR MARKET VALUE" means, as of any date, the value
of a share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                                (i) If, on such date, there is a public market
for the Stock, the Fair Market Value of a share of Stock shall be the closing
sale price of a share of Stock (or the mean of the closing bid and asked price
of a share of Stock if the Stock is so quoted instead) as quoted on the Nasdaq
National Market, the Nasdaq Small-Cap Market or such other national or regional
securities exchange or market system constituting the primary market for the
Stock, as reported in the Wall Street Journal or such other source as the
Company deems reliable. If the relevant date does not fall on a day on which the
Stock has traded on such securities exchange or market system, the date on which
the Fair Market Value shall be established shall be the last day on which the
Stock was so traded prior to the relevant date, or such other appropriate day as
shall be determined by the Board, in its sole discretion.

                                (ii) If, on such date, there is no public market
for the Stock, the Fair Market Value of a share of Stock shall be as determined
by the Board without regard to any restriction other than a restriction which,
by its terms, will never lapse.

                        (p) "INSIDER" means an officer or a Director of the
Company or any other person whose transactions in Stock are subject to Section
16 of the Exchange Act.

                        (q) "PARENT CORPORATION" means any present or future
"parent corporation" of the Company, as defined in Section 424(e) of the Code.

                        (r) "PARTICIPATING COMPANY" means the Company or any
Parent Corporation or Subsidiary Corporation.

                        (s) "PARTICIPATING COMPANY GROUP" means, at any point in
time, all corporations collectively which are then Participating Companies.

                        (t) "SECURITIES ACT" means the Securities Act of 1933,
as amended.

                        (u) "STOCK" means the common stock of the Company, as
adjusted from time to time in accordance with Section 9.

                        (v) "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code. 

                                       3
<PAGE>   4

                        (w) "COMPANY" means PipeLinks, Inc., a California
corporation, or any successor corporation thereto.

                        (x) "SERVICE" means the Optionee's employment or service
with the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. Furthermore,
the Optionee's Service with the Participating Company Group shall not be deemed
to have terminated if the Optionee takes any military leave, sick leave, or
other bona fide leave of absence approved by the Company; provided, however,
that if any such leave exceeds ninety (90) days, on the ninety-first (91st) day
of such leave the Optionee's Service shall be deemed to have terminated unless
the Optionee's right to return to Service with the Participating Company Group
is guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company or required by law, a leave of absence shall
not be treated as Service for purposes of determining the Optionee's Vested
Ratio. The Optionee's Service shall be deemed to have terminated either upon an
actual termination of Service or upon the corporation for which the Optionee
performs Service ceasing to be a Participating Company. Subject to the
foregoing, the Company, in its sole discretion, shall determine whether the
Optionee's Service has terminated and the effective date of such termination.

                1.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement. Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular. Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

        2. TAX CONSEQUENCES.

                2.1 TAX STATUS OF OPTION. This Option is intended to be a
nonstatutory stock option and shall not be treated as an incentive stock option
within the meaning of Section 422(b) of the Code.

                2.2 ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, (b) the Optionee is an Insider and, under
certain circumstances, exercises the Option within six (6) months of the Date of
Option Grant (if a class of equity security of the Company is registered under
Section 12 of the 


                                       4


<PAGE>   5

Exchange Act), or (c) the Optionee is subject to a restriction on transfer to
comply with "Pooling-of-Interests Accounting" rules. Failure to file an election
under Section 83(b), if appropriate, may result in adverse tax consequences to
the Optionee. The Optionee acknowledges that the Optionee has been advised to
consult with a tax advisor prior to the exercise of the Option regarding the tax
consequences to the Optionee of the exercise of the Option. AN ELECTION UNDER
SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE DATE ON WHICH THE OPTIONEE
PURCHASES SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE OPTIONEE ACKNOWLEDGES
THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE OPTIONEE'S SOLE
RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS THE COMPANY OR ITS REPRESENTATIVE
TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

        3. ADMINISTRATION.

               All questions of interpretation concerning this Option Agreement
shall be determined by the Board. All determinations by the Board shall be final
and binding upon all persons having an interest in the Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.
 
        4. EXERCISE OF THE OPTION.

                4.1 RIGHT TO EXERCISE. Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares less the number of shares previously acquired
upon exercise of the Option, subject to the Optionee's agreement that any shares
purchased upon exercise are subject to the Company's repurchase rights set forth
in Section 11 and Section 12.

                4.2 METHOD OF EXERCISE. Exercise of the Option shall be by
written notice to the Company which must state the election to exercise the
Option, the number of whole shares of Stock for which the Option is being
exercised and such other representations and agreements as to the Optionee's
investment intent with respect to such shares as may be required pursuant to the
provisions of this Option Agreement. The written notice must be signed by the
Optionee and must be delivered in person, by certified or registered mail,
return receipt requested, by confirmed facsimile transmission, or by such other
means as the Company may permit, to the Chief Financial Officer of the Company,
or other authorized representative of the Participating Company Group, prior to
the termination of the Option as set forth in Section 6, accompanied by (i) full
payment of the aggregate Exercise Price for the number of shares of Stock being
purchased and (ii) an executed copy, if required herein, of the then current
form of escrow agreement referenced below. The Option shall be deemed to be
exercised upon receipt by the Company of such written notice, the aggregate
Exercise Price, and, if required by the Company, such executed agreement.


                                       5

<PAGE>   6

                4.3 PAYMENT OF EXERCISE PRICE.

                        (a) FORMS OF CONSIDERATION AUTHORIZED. Except as
otherwise provided below, payment of the aggregate Exercise Price for the number
of shares of Stock for which the Option is being exercised shall be made (i) in
cash, by check, or cash equivalent, (ii) by tender to the Company of whole
shares of Stock owned by the Optionee having a Fair Market Value (as determined
by the Company without regard to any restrictions on transferability applicable
to such stock by reason of federal or state securities laws or agreements with
an underwriter for the Company) not less than the aggregate Exercise Price,
(iii) by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by
any combination of the foregoing.

                        (b) TENDER OF STOCK. Notwithstanding the foregoing, the
Option may not be exercised by tender to the Company of shares of Stock to the
extent such tender of Stock would constitute a violation of the provisions of
any law, regulation or agreement restricting the redemption of the Company's
stock. The Option may not be exercised by tender to the Company of shares of
Stock unless such shares either have been owned by the Optionee for more than
six (6) months or were not acquired, directly or indirectly, from the Company.

                        (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

                4.4 TAX WITHHOLDING. At the time the Option is exercised, in
whole or in part, or at any time thereafter as requested by the Company, the
Optionee hereby authorizes withholding from payroll and any other amounts
payable to the Optionee, and otherwise agrees to make adequate provision for
(including by means of a Cashless Exercise to the extent permitted by the
Company), any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Participating Company Group, if any, which arise
in connection with the Option, including, without limitation, obligations
arising upon (i) the exercise, in whole or in part, of the Option, (ii) the
transfer, in whole or in part, of any shares acquired upon exercise of the
Option, (iii) the operation of any law or regulation providing for the
imputation of interest, or (iv) the lapsing of any restriction with respect to
any shares acquired upon exercise of the Option. The Optionee is cautioned that
the Option is not exercisable unless the tax withholding obligations of the
Participating Company Group are satisfied. Accordingly, the Optionee may not be
able to exercise the Option when desired even though the Option is vested, and
the Company shall have no obligation to issue a certificate for such shares or
release such shares from any escrow provided for herein.

                                       6
<PAGE>   7




                4.5 CERTIFICATE REGISTRATION. Except in the event the Exercise
Price is paid by means of a Cashless Exercise, the certificate for the shares as
to which the Option is exercised shall be registered in the name of the
Optionee, or, if applicable, in the names of the heirs of the Optionee.

                4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES.
The grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED
EVEN THOUGH THE OPTION IS VESTED. The inability of the Company to obtain from
any regulatory body having jurisdiction the authority, if any, deemed by the
Company's legal counsel to be necessary to the lawful issuance and sale of any
shares subject to the Option shall relieve the Company of any liability in
respect of the failure to issue or sell such shares as to which such requisite
authority shall not have been obtained. As a condition to the exercise of the
Option, the Company may require the Optionee to satisfy any qualifications that
may be necessary or appropriate, to evidence compliance with any applicable law
or regulation and to make any representation or warranty with respect thereto as
may be requested by the Company.

                4.7 FRACTIONAL SHARES. The Company shall not be required to
issue fractional shares upon the exercise of the Option.

        5. NONTRANSFERABILITY OF THE OPTION.

               The Option may be exercised during the lifetime of the Optionee
only by the Optionee or the Optionee's guardian or legal representative and may
not be assigned or transferred in any manner except by will or by the laws of
descent and distribution. Following the death of the Optionee, the Option, to
the extent provided in Section 7, may be exercised by the Optionee's legal
representative or by any person empowered to do so under the deceased Optionee's
will or under the then applicable laws of descent and distribution.

        6. TERMINATION OF THE OPTION.

               The Option shall terminate and may no longer be exercised on the
first to occur of (a) the Option Expiration Date, (b) the last date for
exercising the Option following termination 

                                       7



<PAGE>   8

of the Optionee's Service as described in Section 7, or (c) a Change in Control
to the extent provided in Section 8.

        7. EFFECT OF TERMINATION OF SERVICE.

                7.1 OPTION EXERCISABILITY.

                        (a) DISABILITY. If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of six (6) months after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date.

                        (b) DEATH. If the Optionee's Service with the
Participating Company Group is terminated because of the death of the Optionee,
the Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee's legal
representative or other person who acquired the right to exercise the Option by
reason of the Optionee's death at any time prior to the expiration of six (6)
months after the date on which the Optionee's Service terminated, but in any
event no later than the Option Expiration Date. The Optionee's Service shall be
deemed to have terminated on account of death if the Optionee dies within one
(1) month after the Optionee's termination of Service.

                        (c) OTHER TERMINATION OF SERVICE. If the Optionee's
Service with the Participating Company Group terminates for any reason, except
Disability or death, the Option, to the extent unexercised and exercisable by
the Optionee on the date on which the Optionee's Service terminated, may be
exercised by the Optionee within one (1) month (or such other longer period of
time as determined by the Board, in its sole discretion) after the date on which
the Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

                7.2 ADDITIONAL LIMITATION ON OPTION EXERCISE. Notwithstanding
the provisions of Section 7.1, the Option may not be exercised after the
Optionee's termination of Service to the extent that the shares to be acquired
upon exercise of the Option would be subject to the Unvested Share Repurchase
Option as provided in Section 11.

                7.3 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until one (1) month after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

                7.4 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 7.1 of shares acquired upon the exercise of the Option would
subject the Optionee to suit under Section 16(b) of the Exchange Act, the Option
shall remain exercisable until the earliest to occur of (i) the tenth 

                                       8


<PAGE>   9

(10th) day following the date on which a sale of such shares by the Optionee
would no longer be subject to such suit, (ii) the one hundred and ninetieth
(190th) day after the Optionee's termination of Service, or (iii) the Option
Expiration Date.

        8. CHANGE IN CONTROL.

                8.1 DEFINITIONS.

                        (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have
occurred if any of the following occurs with respect to the Company:

                                (i) the direct or indirect sale or exchange in a
single or series of related transactions by the shareholders of the Company of
more than fifty percent (50%) of the voting stock of the Company;

                                (ii) a merger or consolidation in which the
Company is a party;

                                (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                                (iv) a liquidation or dissolution of the
Company.

                        (b) A "CHANGE IN CONTROL" shall mean an Ownership Change
Event or a series of related Ownership Change Events (collectively, the
"TRANSACTION") wherein the shareholders of the Company immediately before the
Transaction do not retain immediately after the Transaction, in substantially
the same proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

                8.2 EFFECT OF CHANGE IN CONTROL ON OPTION. In the event of a
Change in Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent option for the
Acquiring Corporation's stock. For purposes of this Section 8.2, the Option
shall be deemed assumed if, following the Change in Control, the Option confers
the right to purchase in accordance with its terms and conditions, for each
share of Stock subject to the Option

                                       9









































immediately prior to the Change in Control, the consideration (whether stock,
cash or other securities or property) to which a holder of a share of Stock on
the effective date of the Change in Control was entitled. The Option shall
terminate and cease to be outstanding effective as of the date of the Change in
Control to the extent that the Option is neither assumed or substituted for by
the Acquiring Corporation in connection with the Change in Control nor exercised
as of the date of the Change in Control. Notwithstanding the foregoing, shares
acquired upon exercise of the Option prior to the Change in Control and any
consideration received pursuant to the Change in Control with respect to such
shares shall continue to be subject to all applicable provisions of this Option
Agreement except as otherwise provided herein. Furthermore, notwithstanding the
foregoing, if the corporation the stock of which is subject to the Option
immediately prior to an Ownership Change Event described in Section 8.1(a)(i)
constituting a Change in Control is the surviving or continuing corporation and
immediately after such Ownership Change Event less than fifty percent (50%) of
the total combined voting power of its voting stock is held by another
corporation or by other corporations that are members of an affiliated group
within the meaning of Section 1504(a) of the Code without regard to the
provisions of Section 1504(b) of the Code, the Option shall not terminate unless
the Board otherwise provides in its sole discretion.
 
        9. ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.

               In the event of any stock dividend, stock split, reverse stock
split, recapitalization, combination, reclassification, or similar change in the
capital structure of the Company, appropriate adjustments shall be made in the
number, Exercise Price and class of shares of stock subject to the Option. If a
majority of the shares which are of the same class as the shares that are
subject to the Option are exchanged for, converted into, or otherwise become
(whether or not pursuant to an Ownership Change Event) shares of another
corporation (the "NEW SHARES"), the Board may unilaterally amend the Option to
provide that the Option is exercisable for New Shares. In the event of any such
amendment, the Number of Option Shares and the Exercise Price shall be adjusted
in a fair and equitable manner, as determined by the Board, in its sole
discretion. Notwithstanding the foregoing, any fractional share resulting from
an adjustment pursuant to this Section 9 shall be rounded up or down to the
nearest whole number, as determined by the Board, and in no event may the
Exercise Price be decreased to an amount less than the par value, if any, of the
stock subject to the Option. The adjustments determined by the Board pursuant to
this Section 9 shall be final, binding and conclusive.

        10. RIGHTS AS A SHAREHOLDER, EMPLOYEE OR CONSULTANT.

               The Optionee shall have no rights as a shareholder with respect
to any shares covered by the Option until the date of the issuance of a
certificate for the shares for which the Option has been exercised (as evidenced
by the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company). No adjustment shall be made for dividends,
distributions or other rights for which the record date is prior to the date
such certificate is issued, except as provided in Section 9. If the Optionee is
an Employee, the Optionee understands and acknowledges that, except as otherwise
provided in a separate, written employment agreement between a Participating
Company and the Optionee, the Optionee's employment is "at will" and is for no
specified term. Nothing in this Option Agreement shall 


                                       10


<PAGE>   10

confer upon the Optionee any right to continue in the Service of a Participating
Company or interfere in any way with any right of the Participating Company
Group to terminate the Optionee's Service as an Employee or Consultant, as the
case may be, at any time.

         11. UNVESTED SHARE REPURCHASE OPTION.

                11.1 GRANT OF UNVESTED SHARE REPURCHASE OPTION. In the event the
Optionee's Service with the Participating Company Group is terminated for any
reason or no reason, with or without cause, or, if the Optionee, the Optionee's
legal representative, or other holder of shares acquired upon exercise of the
Option attempts to sell, exchange, transfer, pledge, or otherwise dispose of
(other than pursuant to an Ownership Change Event) any shares acquired upon
exercise of the Option which exceed the Vested Shares as defined in Section 11.2
below (the "UNVESTED SHARES"), the Company shall have the right to repurchase
the Unvested Shares under the terms and subject to the conditions set forth in
this Section 11 (the "UNVESTED SHARE REPURCHASE OPTION").

                11.2 VESTED SHARES AND UNVESTED SHARES DEFINED. The "VESTED
SHARES" shall mean, on any given date, a number of shares of Stock equal to the
Number of Option Shares multiplied by the Vested Ratio determined as of such
date and rounded down to the nearest whole share. On such given date, the
"UNVESTED SHARES" shall mean the number of shares of Stock acquired upon
exercise of the Option which exceed the Vested Shares determined as of such
date.

                11.3 EXERCISE OF UNVESTED SHARE REPURCHASE OPTION. The Company
may exercise the Unvested Share Repurchase Option by written notice to the
Optionee within sixty (60) days after (a) termination of the Optionee's Service
(or exercise of the Option, if later) or (b) the Company has received notice of
the attempted disposition of Unvested Shares. If the Company fails to give
notice within such sixty (60) day period, the Unvested Share Repurchase Option
shall terminate unless the Company and the Optionee have extended the time for
the exercise of the Unvested Share Repurchase Option. The Unvested Share
Repurchase Option must be exercised, if at all, for all of the Unvested Shares,
except as the Company and the Optionee otherwise agree.

                11.4 PAYMENT FOR SHARES AND RETURN OF SHARES TO COMPANY. The
purchase price per share being repurchased by the Company shall be an amount
equal to the Optionee's original cost per share, as adjusted pursuant to Section
9 (the "REPURCHASE PRICE"). The Company shall pay the aggregate Repurchase Price
to the Optionee in cash within thirty (30) days after the date of the written
notice to the Optionee of the Company's exercise of the Unvested Share
Repurchase Option. For purposes of the foregoing, cancellation of any
indebtedness of the Optionee to any Participating Company shall be treated as
payment to the Optionee in cash to the extent of the unpaid principal and any
accrued interest canceled. The shares being repurchased shall be delivered to
the Company by the Optionee at the same time as the delivery of the Repurchase
Price to the Optionee.

                                       11
<PAGE>   11

                11.5 ASSIGNMENT OF UNVESTED SHARE REPURCHASE OPTION. The Company
shall have the right to assign the Unvested Share Repurchase Option at any time,
whether or not such option is then exercisable, to one or more persons as may be
selected by the Company.

                11.6 OWNERSHIP CHANGE EVENT. Upon the occurrence of an Ownership
Change Event, any and all new, substituted or additional securities or other
property to which the Optionee is entitled by reason of the Optionee's ownership
of Unvested Shares shall be immediately subject to the Unvested Share Repurchase
Option and included in the terms "STOCK" and "UNVESTED SHARES" for all purposes
of the Unvested Share Repurchase Option with the same force and effect as the
Unvested Shares immediately prior to the Ownership Change Event. While the
aggregate Repurchase Price shall remain the same after such Ownership Change
Event, the Repurchase Price per Unvested Share upon exercise of the Unvested
Share Repurchase Option following such Ownership Change Event shall be adjusted
as appropriate. For purposes of determining the Vested Ratio following an
Ownership Change Event, credited Service shall include all Service with any
corporation which is a Participating Company at the time the Service is
rendered, whether or not such corporation is a Participating Company both before
and after the Ownership Change Event.

         12. RIGHT OF FIRST REFUSAL.

                12.1 GRANT OF RIGHT OF FIRST REFUSAL. Except as provided in
Section 12.7 below, in the event the Optionee, the Optionee's legal
representative, or other holder of shares acquired upon exercise of the Option
proposes to sell, exchange, transfer, pledge, or otherwise dispose of any Vested
Shares (the "TRANSFER SHARES") to any person or entity, including, without
limitation, any shareholder of the Participating Company Group, the Company
shall have the right to repurchase the Transfer Shares under the terms and
subject to the conditions set forth in this Section 12 (the "RIGHT OF FIRST
REFUSAL").

                12.2 NOTICE OF PROPOSED TRANSFER. Prior to any proposed transfer
of the Transfer Shares, the Optionee shall deliver written notice (the "TRANSFER
NOTICE") to the Company describing fully the proposed transfer, including the
number of Transfer Shares, the name and address of the proposed transferee (the
"PROPOSED TRANSFEREE") and, if the transfer is voluntary, the proposed transfer
price, and containing such information necessary to show the bona fide nature of
the proposed transfer. In the event of a bona fide gift or involuntary transfer,
the proposed transfer price shall be deemed to be the Fair Market Value of the
Transfer Shares, as determined by the Board in good faith. If the Optionee
proposes to transfer any Transfer Shares to more than one Proposed Transferee,
the Optionee shall provide a separate Transfer Notice for the proposed transfer
to each Proposed Transferee. The Transfer Notice shall be signed by both the
Optionee and the Proposed Transferee and must constitute a binding commitment of
the Optionee and the Proposed Transferee for the transfer of the Transfer Shares
to the Proposed Transferee subject only to the Right of First Refusal.

                12.3 BONA FIDE TRANSFER. If the Company determines that the
information provided by the Optionee in the Transfer Notice is insufficient to
establish the bona fide nature of a proposed voluntary transfer, the Company
shall give the Optionee written notice of the 

                                       12


<PAGE>   12

Optionee's failure to comply with the procedure described in this Section 12,
and the Optionee shall have no right to transfer the Transfer Shares without
first complying with the procedure described in this Section 12. The Optionee
shall not be permitted to transfer the Transfer Shares if the proposed transfer
is not bona fide.

                12.4 EXERCISE OF RIGHT OF FIRST REFUSAL. If the Company
determines the proposed transfer to be bona fide, the Company shall have the
right to purchase all, but not less than all, of the Transfer Shares (except as
the Company and the Optionee otherwise agree) at the purchase price and on the
terms set forth in the Transfer Notice by delivery to the Optionee of a notice
of exercise of the Right of First Refusal within thirty (30) days after the date
the Transfer Notice is delivered to the Company. The Company's exercise or
failure to exercise the Right of First Refusal with respect to any proposed
transfer described in a Transfer Notice shall not affect the Company's right to
exercise the Right of First Refusal with respect to any proposed transfer
described in any other Transfer Notice, whether or not such other Transfer
Notice is issued by the Optionee or issued by a person other than the Optionee
with respect to a proposed transfer to the same Proposed Transferee. If the
Company exercises the Right of First Refusal, the Company and the Optionee shall
thereupon consummate the sale of the Transfer Shares to the Company on the terms
set forth in the Transfer Notice within sixty (60) days after the date the
Transfer Notice is delivered to the Company (unless a longer period is offered
by the Proposed Transferee); provided, however, that in the event the Transfer
Notice provides for the payment for the Transfer Shares other than in cash, the
Company shall have the option of paying for the Transfer Shares by the present
value cash equivalent of the consideration described in the Transfer Notice as
reasonably determined by the Company. For purposes of the foregoing,
cancellation of any indebtedness of the Optionee to any Participating Company
shall be treated as payment to the Optionee in cash to the extent of the unpaid
principal and any accrued interest canceled.

                12.5 FAILURE TO EXERCISE RIGHT OF FIRST REFUSAL. If the Company
fails to exercise the Right of First Refusal in full (or to such lesser extent
as the Company and the Optionee otherwise agree) within the period specified in
Section 12.4 above, the Optionee may conclude a transfer to the Proposed
Transferee of the Transfer Shares on the terms and conditions described in the
Transfer Notice, provided such transfer occurs not later than ninety (90) days
following delivery to the Company of the Transfer Notice. The Company shall have
the right to demand further assurances from the Optionee and the Proposed
Transferee (in a form satisfactory to the Company) that the transfer of the
Transfer Shares was actually carried out on the terms and conditions described
in the Transfer Notice. No Transfer Shares shall be transferred on the books of
the Company until the Company has received such assurances, if so demanded, and
has approved the proposed transfer as bona fide. Any proposed transfer on terms
and conditions different from those described in the Transfer Notice, as well as
any subsequent proposed transfer by the Optionee, shall again be subject to the
Right of First Refusal and shall require compliance by the Optionee with the
procedure described in this Section 12.

                12.6 TRANSFEREES OF TRANSFER SHARES. All transferees of the
Transfer Shares or any interest therein, other than the Company, shall be
required as a condition of such transfer to agree in writing (in a form
satisfactory to the Company) that such transferee shall receive and hold such
Transfer Shares or interest therein subject to all of the terms and conditions
of this 

                                       13


<PAGE>   13

Option Agreement, including this Section 12 providing for the Right of First
Refusal with respect to any subsequent transfer. Any sale or transfer of any
shares acquired upon exercise of the Option shall be void unless the provisions
of this Section 12 are met.

                12.7 TRANSFERS NOT SUBJECT TO RIGHT OF FIRST REFUSAL. The Right
of First Refusal shall not apply to any transfer or exchange of the shares
acquired upon exercise of the Option if such transfer or exchange is in
connection with an Ownership Change Event. If the consideration received
pursuant to such transfer or exchange consists of stock of a Participating
Company, such consideration shall remain subject to the Right of First Refusal
unless the provisions of Section 12.9 below result in a termination of the Right
of First Refusal.

                12.8 ASSIGNMENT OF RIGHT OF FIRST REFUSAL. The Company shall
have the right to assign the Right of First Refusal at any time, whether or not
there has been an attempted transfer, to one or more persons as may be selected
by the Company.

                12.9 EARLY TERMINATION OF RIGHT OF FIRST REFUSAL. The other
provisions of this Option Agreement notwithstanding, the Right of First Refusal
shall terminate and be of no further force and effect upon (a) the occurrence of
a Change in Control, unless the Acquiring Corporation assumes the Company's
rights and obligations under the Option or substitutes a substantially
equivalent option for the Acquiring Corporation's stock for the Option, or (b)
the existence of a public market for the class of shares subject to the Right of
First Refusal. A "PUBLIC MARKET" shall be deemed to exist if (i) such stock is
listed on a national securities exchange (as that term is used in the Exchange
Act) or (ii) such stock is traded on the over-the-counter market and prices
therefor are published daily on business days in a recognized financial journal.

        13. ESCROW.

                13.1 ESTABLISHMENT OF ESCROW. To ensure that shares subject to
the Unvested Share Repurchase Option will be available for repurchase, the
Company may require the Optionee to deposit the certificate evidencing the
shares which the Optionee purchases upon exercise of the Option with an agent
designated by the Company under the terms and conditions of escrow and security
agreements approved by the Company. If the Company does not require such deposit
as a condition of exercise of the Option, the Company reserves the right at any
time to require the Optionee to so deposit the certificate in escrow. Upon the
occurrence of an Ownership Change Event or a change, as described in Section 9,
in the character or amount of any of the outstanding stock of the corporation
the stock of which is subject to the provisions of this Option Agreement, any
and all new, substituted or additional securities or other property to which the
Optionee is entitled by reason of the Optionee's ownership of shares of Stock
acquired upon exercise of the Option that remain, following such Ownership
Change Event or change described in Section 9, subject to the Unvested Share
Repurchase Option shall be immediately subject to the escrow to the same extent
as such shares of Stock immediately before such event. The Company shall bear
the expenses of the escrow.


                                       14

<PAGE>   14

                13.2 DELIVERY OF SHARES TO OPTIONEE. As soon as practicable
after the expiration of the Unvested Share Repurchase Option, but not more
frequently than twice each calendar year, the escrow agent shall deliver to the
Optionee the shares and any other property no longer subject to such
restriction.

                13.3 NOTICES AND PAYMENTS. In the event the shares and any other
property held in escrow are subject to the Company's exercise of the Unvested
Share Repurchase Option or the Right of First Refusal, the notices required to
be given to the Optionee shall be given to the escrow agent, and any payment
required to be given to the Optionee shall be given to the escrow agent. Within
thirty (30) days after payment by the Company, the escrow agent shall deliver
the shares and any other property which the Company has purchased to the Company
and shall deliver the payment received from the Company to the Optionee.

        14. STOCK DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT.

               If, from time to time, there is any stock dividend, stock split
or other change, as described in Section 9, in the character or amount of any of
the outstanding stock of the corporation the stock of which is subject to the
provisions of this Option Agreement, then in such event any and all new,
substituted or additional securities to which the Optionee is entitled by reason
of the Optionee's ownership of the shares acquired upon exercise of the Option
shall be immediately subject to the Unvested Share Repurchase Option and the
Right of First Refusal with the same force and effect as the shares subject to
the Unvested Share Repurchase Option and the Right of First Refusal immediately
before such event.

        15. REPRESENTATIONS AND WARRANTIES.

               In connection with the receipt of the Option and any acquisition
of shares upon the exercise thereof, the Optionee hereby agrees, represents and
warrants as follows:

                15.1 The Optionee is acquiring the Option and will acquire any
shares of Stock upon exercise of the Option for the Optionee's own account, and
not on behalf of any other person or as a nominee, for investment and not with a
view to, or sale in connection with, any distribution of the Option or such
shares.

                15.2 The Optionee was not presented with or solicited by any
form of general solicitation or general advertising, including, but not limited
to, any advertisement, article, notice, or other communication published in any
newspaper, magazine, or similar media, or broadcast over television, radio or
similar communications media, or presented at any seminar or meeting whose
attendees have been invited by any general solicitation or general advertising.

                15.3 The Optionee has either (a) a preexisting personal or
business relationship with the Company or any of its officers, directors, or
controlling persons, consisting of personal or business contacts of a nature and
duration to enable the Optionee to be aware of the character, business acumen
and general business and financial circumstances of the person with whom such
relationship exists, or (b) such knowledge and experience in financial and
business matters (or 


                                       15


<PAGE>   15

has relied on the financial and business knowledge and experience of the
Optionee's professional advisor who is unaffiliated with and who is not,
directly or indirectly, compensated by the Company or any affiliate or selling
agent of the Company) as to make the Optionee capable of evaluating the merits
and risks of the Option and any investment in shares acquired pursuant to the
Option and to protect the Optionee's own interests in the transaction, or (c)
both such relationship and such knowledge and experience.

                15.4 The Optionee understands that the Option and any shares
acquired upon exercise of the Option have not been qualified under the Corporate
Securities Law of 1968, as amended, of the State of California by reason of a
specific exemption therefrom, which exemption depends upon, among other things,
the bona fide nature of the Optionee's representations as expressed herein. The
Optionee understands that the Company is relying on the Optionee's
representations and that such reliance is reasonable.

        16. LEGENDS.

               The Company may at any time place legends referencing the
Unvested Share Repurchase Option, the Right of First Refusal, and any applicable
federal, state or foreign securities law restrictions on all certificates
representing shares of stock subject to the provisions of this Option Agreement.
The Optionee shall, at the request of the Company, promptly present to the
Company any and all certificates representing shares acquired pursuant to the
Option in the possession of the Optionee in order to carry out the provisions of
this Section. Unless otherwise specified by the Company, legends placed on such
certificates may include, but shall not be limited to, the following:

                16.1 "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE IS MADE IN
ACCORDANCE WITH RULE 144 OR RULE 701 UNDER THE ACT, OR THE COMPANY RECEIVES AN
OPINION OF COUNSEL FOR THE HOLDER OF THESE SECURITIES REASONABLY SATISFACTORY TO
THE COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT."

                16.2 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
AN UNVESTED SHARE REPURCHASE OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE
SET FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR
SUCH HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE
PRINCIPAL OFFICE OF THIS CORPORATION."

                16.3 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
A RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE 


                                       16


<PAGE>   16

CORPORATION OR ITS ASSIGNEE SET FORTH IN AN AGREEMENT BETWEEN THE CORPORATION
AND THE REGISTERED HOLDER, OR SUCH HOLDER'S PREDECESSOR IN INTEREST, A COPY OF
WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THIS CORPORATION."

        17. PUBLIC OFFERING.

               The Optionee hereby agrees that in the event of any underwritten
public offering of stock, including an initial public offering of stock, made by
the Company pursuant to an effective registration statement filed under the
Securities Act, the Optionee shall not offer, sell, contract to sell, pledge,
hypothecate, grant any option to purchase or make any short sale of, or
otherwise dispose of any shares of stock of the Company or any rights to acquire
stock of the Company for such period of time from and after the effective date
of such registration statement as may be established by the underwriter for such
public offering; provided, however, that such period of time shall not exceed
one hundred eighty (180) days from the effective date of the registration
statement to be filed in connection with such public offering. The foregoing
limitation shall not apply to shares registered in the public offering under the
Securities Act. The Optionee shall be subject to this Section provided and only
if the officers and directors of the Company are also subject to similar
arrangements.

       18. RESTRICTIONS ON TRANSFER OF SHARES.

               No shares acquired upon exercise of the Option may be sold,
exchanged, transferred (including, without limitation, any transfer to a nominee
or agent of the Optionee), assigned, pledged, hypothecated or otherwise disposed
of, including by operation of law, in any manner which violates any of the
provisions of this Option Agreement and, except pursuant to an Ownership Change
Event, until the date on which such shares become Vested Shares, and any such
attempted disposition shall be void. The Company shall not be required (a) to
transfer on its books any shares which will have been transferred in violation
of any of the provisions set forth in this Option Agreement or (b) to treat as
owner of such shares or to accord the right to vote as such owner or to pay
dividends to any transferee to whom such shares will have been so transferred.

        19. BINDING EFFECT.

               Subject to the restrictions on transfer set forth herein, this
Option Agreement shall inure to the benefit of and be binding upon the parties
hereto and their respective heirs, executors, administrators, successors and
assigns.

        20. TERMINATION OR AMENDMENT.

               The Board may terminate or amend the Option at any time;
provided, however, that except as provided in Section 8.2 in connection with a
Change in Control, no such termination or amendment may adversely affect the
Option or any unexercised portion hereof without the consent of the Optionee
unless such termination or amendment is necessary to 

                                       17


<PAGE>   17

comply with any applicable law or government regulation. No amendment or
addition to this Option Agreement shall be effective unless in writing.

        21. NOTICES.

               Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given (except to the extent that this
Option Agreement provides for effectiveness only upon actual receipt of such
notice) upon personal delivery or upon deposit in the United States Post Office,
by registered or certified mail, with postage and fees prepaid, addressed to the
other party at the address shown below that party's signature or at such other
address as such party may designate in writing from time to time to the other
party.


        22. INTEGRATED AGREEMENT.

               This Option Agreement constitute the entire understanding and
agreement of the Optionee and the Participating Company Group with respect to
the subject matter contained herein and there are no agreements, understandings,
restrictions, representations, or warranties among the Optionee and the
Participating Company Group with respect to such subject matter other than those
as set forth or provided for herein. To the extent contemplated herein, the
provisions of this Option Agreement shall survive any exercise of the Option and
shall remain in full force and effect.

         23. APPLICABLE LAW.

               This Option Agreement shall be governed by the laws of the State
of California as such laws are applied to agreements between California
residents entered into and to be performed entirely within the State of
California.

                                   PIPELINKS, INC.



                                   By: 
                                       ---------------------------------------
                                   Title:
                                       ---------------------------------------

                                   Address:
                                            ----------------------------------

                                            ----------------------------------
                                       18
<PAGE>   18

        The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement, including the Unvested Share Repurchase
Option set forth in Section 11 and the Right of First Refusal set forth in
Section 12, and hereby accepts the Option subject to all of the terms and
provisions thereof. The Optionee hereby agrees to accept as binding, conclusive
and final all decisions or interpretations of the Board upon any questions
arising under this Option Agreement.

                                                   OPTIONEE


Date:
      --------------------------                   -----------------------------
                                                   Optionee Address:


                                                   -----------------------------

                                                   -----------------------------




                                       19
<PAGE>   19




                                                  Optionee:
                                                            --------------------
                                                      Date:
                                                            --------------------


                             IMMEDIATELY EXERCISABLE

                            NONSTATUTORY STOCK OPTION

                                 EXERCISE NOTICE


PipeLinks, Inc.

- ---------------------
- ---------------------


Attention: Chief Financial Officer

Ladies and Gentlemen:

        1. Exercise of Option. I was granted a nonstatutory stock option (the
"OPTION") to purchase shares of the common stock of PipeLinks, Inc. (the
"COMPANY") on ___________________, 19___, pursuant to the Immediately
Exercisable Nonstatutory Stock Option Agreement dated __________________, 19___
(the "OPTION AGREEMENT"). I hereby elect to exercise the Option as to a total of
__________________ shares of the common stock of the Company (the "SHARES"), of
which ________________ are Vested Shares and ______________ are Unvested Shares
as determined in accordance with the Option Agreement.

        2. Payments. Enclosed herewith is full payment in the aggregate amount
of $_____________ (representing $_______ per share) for the Shares in the manner
set forth in the Option Agreement. I authorize payroll withholding and otherwise
will make adequate provision for foreign, federal and state tax withholding
obligations of the Company, if any.

        3. Binding Effect. I agree that the Shares are being acquired in
accordance with and subject to the terms, provisions and conditions of the
Option Agreement, including the Unvested Share Repurchase Option and the Right
of First Refusal set forth therein, to all of which I hereby expressly assent.
This Agreement shall inure to the benefit of and be binding upon the my heirs,
executors, administrators, successors and assigns. I agree to deposit the
certificate or certificates evidencing the Shares, along with a blank stock
assignment separate from certificate executed by me, with an escrow agent
designated by the Company, to be held by such escrow agent pursuant to the
Company's standard Joint Escrow Instructions, an executed copy of which I have
delivered herewith.


                                       1

<PAGE>   20

        4. Transfer. I am aware that Rule 144, promulgated under the Securities
Act, which permits limited public resale of securities acquired in a nonpublic
offering, is not currently available with respect to the Shares and, in any
event, is available only if certain conditions are satisfied. I understand that
any sale of the Shares that might be made in reliance upon Rule 144 may only be
made in limited amounts in accordance with the terms and conditions of such rule
and that a copy of Rule 144 will be delivered to me upon request.

        My address of record is:

        ------------------------------------------------------------------------

        ------------------------------------------------------------------------

        My Social Security Number is:
                                     -------------------------------------------

        5. Election Under Section 83(b) of the Code. I understand and
acknowledge that if I am exercising the Option to purchase Unvested Shares
(i.e., shares that remain subject to the Company's Unvested Share Repurchase
Option), that I should consult with my tax advisor regarding the advisability of
filing with the Internal Revenue Service an election under Section 83(b) of the
Code, which must be filed no later than thirty (30) days after the date on which
I exercise the Option.

        I acknowledge that I have been advised to consult with a tax advisor
prior to the exercise of the Option regarding the tax consequences to me of
exercising the Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30
DAYS AFTER THE DATE ON WHICH I PURCHASE SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. I ACKNOWLEDGE THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS MY
SOLE RESPONSIBILITY, EVEN IF I REQUEST THE COMPANY OR ITS REPRESENTATIVES TO
FILE SUCH ELECTION ON MY BEHALF.


                                       2

<PAGE>   21

        I understand that I am purchasing the Shares pursuant to the terms of my
Option Agreement, a copy of which I have received and carefully read and
understand.

                                      Very truly yours,



                                      ------------------------------------
                                      (Signature)

                                      ------------------------------------
                                      (Optionee's Name Printed)


Receipt of the above is hereby acknowledged.

PIPELINKS, INC.

By:
   ---------------------------------
Title:
      ------------------------------
Dated:
      ------------------------------




                                       3


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