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                                                                     EXHIBIT 4.2



                                     ISOCOR

                             1999 STOCK OPTION PLAN


         1. PURPOSES OF THE PLAN. The purposes of this Stock Option Plan are to
attract and retain the best available personnel for positions of substantial
responsibility, to provide additional incentive to the Employees and Consultants
of the Company and to promote the success of the Company's business.

            Options granted hereunder may be either Incentive Stock Options (as
defined under Section 422 of the Code) or Nonstatutory Stock Options, at the
discretion of the Board and as reflected in the terms of the written option
agreement.

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

            (a) "Administrator" shall mean the Board or any of its Committees
appointed pursuant to Section 4 of the Plan.

            (b) "Affiliate" shall mean an entity other than a Subsidiary (as
defined below) in which the Company owns an equity interest.

            (c) "Applicable Laws" shall mean the legal requirements relating to
the administration of stock option and restricted stock purchase plans under
applicable U.S. state corporate laws, U.S. federal and applicable state
securities laws, the Code, any Stock Exchange rules or regulations and the
applicable laws of any other country or jurisdiction where Options are granted
under the Plan, as such laws, rules, regulations and requirements shall be in
place from time to time.

            (d) "Board" shall mean the Board of Directors of the Company.

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

            (f) "Committee" shall mean the Committee appointed by the Board of
Directors in accordance with Section 4(a) of the Plan, if one is appointed.

            (g) "Common Stock" shall mean the Common Stock of the Company.

            (h) "Company" shall mean Isocor, a California corporation.

            (i) "Consultant" means any person, including an advisor, who is
engaged by the Company or any Parent or Subsidiary to render services and is
compensated for such services, and any director of the Company whether
compensated for such services or not.

            (j) "Continuous Status as an Employee or Consultant" shall mean the
absence of any interruption or termination of service as an Employee or
Consultant. Continuous Status as an Employee or Consultant shall not be
considered interrupted in the case of sick leave, military leave, or any other
leave of absence approved by the Administrator; provided that such leave is for
a period of not more than 90 days or reemployment upon the expiration of such
leave is guaranteed by contract or statute. For purposes of this Plan, a change
in status from an Employee to a Consultant or from a Consultant to an Employee
will not constitute a termination of employment.

            (k) "Director" shall mean a member of the Board.


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            (l) "Employee" shall mean any person (including any Named Executive,
Officer or Director) employed by the Company or any Parent, Subsidiary or
Affiliate of the Company. The payment by the Company of a director's fee to a
Director shall not be sufficient to constitute "employment" of such Director by
the Company.

            (m) "Exchange Act" shall mean the Securities Exchange Act of 1934,
as amended.

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

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

                (ii) If the Common Stock is quoted on the Nasdaq System (but not
on the National Market thereof) or regularly quoted by a recognized securities
dealer but selling prices are not reported, its Fair Market Value shall be the
mean between the bid and asked prices for the Common Stock for the last market
trading day prior to the date of determination (or if no bids occurred on the
date of determination, on the last trading day prior to the date of
determination), as such prices are reported in the Wall Street Journal or such
other sources as the Administrator deems reliable; or

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

            (o) "Incentive Stock Option" shall mean an Option intended to
qualify as an incentive stock option within the meaning of Section 422 of the
Code, as designated in the applicable written option agreement.

            (p) "Named Executive" shall mean any individual who, on the last day
of the Company's fiscal year, is the chief executive officer of the Company (or
is acting in such capacity) or among the four highest compensated officers of
the Company (other than the chief executive officer). Such officer status shall
be determined pursuant to the executive compensation disclosure rules under the
Exchange Act.

            (q) "Nonstatutory Stock Option" shall mean an Option not intended to
qualify as an Incentive Stock Option, as designated in the applicable written
option agreement.

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

            (s) "Option" shall mean a stock option granted pursuant to the Plan.

            (t) "Optioned Stock" shall mean the Common Stock subject to an
Option.

            (u) "Optionee" shall mean an Employee or Consultant who receives an
Option.



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

            (w) "Plan" shall mean this 1999 Stock Option Plan.

            (x) "Rule 16b-3" shall mean Rule 16b-3 promulgated under the
Exchange Act as the same may be amended from time to time, or any successor
provision.

            (y) "Share" shall mean a share of the Common Stock, as adjusted in
accordance with Section 14 of the Plan.

            (z) "Subsidiary" shall mean a "subsidiary corporation," whether now
or hereafter existing, as defined in Section 424(f) of the Code.

         3. STOCK SUBJECT TO THE PLAN. Subject to the provisions of Section 14
of the Plan, the maximum aggregate number of shares that may be sold under the
Plan is 350,000 shares of Common Stock, plus an automatic annual increase on the
first day of each fiscal year over the ten (10) year term of the Plan starting
in 2000 equal to 300,000 Shares of Common Stock. The Shares may be authorized,
but unissued, or reacquired Common Stock.

         If an Option should expire or become unexercisable for any reason
without having been exercised in full, the unpurchased Shares that were subject
thereto shall, unless the Plan shall have been terminated, become available for
future grant under the Plan. Notwithstanding any other provision of the Plan,
shares issued under the Plan and later repurchased by the Company shall not
become available for future grant under the Plan.

         4. ADMINISTRATION OF THE PLAN.

            (a) COMPOSITION OF ADMINISTRATOR.

                (i) MULTIPLE ADMINISTRATIVE BODIES. If permitted by the
Applicable Laws, grants under the Plan may (but need not) be made by different
administrative bodies with respect to Directors, Officers who are not directors
and Employees who are neither Directors nor Officers.

                (ii) ADMINISTRATION WITH RESPECT TO DIRECTORS AND OFFICERS. With
respect to grants of Options to Employees or Consultants who are also Officers
or Directors of the Company, grants under the Plan shall be made by (A) the
Board, if the Board may make grants under the Plan in compliance with Rule 16b-3
and Section 162(m) of the Code as it applies so as to qualify grants of Options
to Named Executives as performance-based compensation, or (B) a Committee
designated by the Board to make grants under the Plan, which Committee shall be
constituted in such a manner as to permit grants under the Plan to comply with
Rule 16b-3, to qualify grants of Options to Named Executives as
performance-based compensation under Section 162(m) of the Code and otherwise so
as to satisfy the Applicable Laws.

                (iii) ADMINISTRATION WITH RESPECT TO OTHER PERSONS. With respect
to grants of Options to Employees or Consultants who are neither Directors nor
Officers of the Company, the Plan shall be administered by (A) the Board or (B)
a Committee designated by the Board, which Committee shall be constituted in
such a manner as to satisfy the Applicable Laws.



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                (iv) GENERAL. If a Committee has been appointed pursuant to
subsection (ii) or (iii) of this Section 4(a), such Committee shall continue to
serve in its designated capacity until otherwise directed by the Board. From
time to time the Board may increase the size of any Committee and appoint
additional members thereof, remove members (with or without cause) and appoint
new members in substitution therefor, fill vacancies (however caused) and remove
all members of a Committee and thereafter directly administer the Plan, all to
the extent permitted by the Applicable Laws and, in the case of a Committee
appointed under subsection (ii), to the extent permitted by Rule 16b-3 and to
the extent required under Section 162(m) of the Code to qualify grants of
Options to Named Executives as performance-based compensation.

            (b) POWERS OF THE ADMINISTRATOR. Subject to the provisions of the
Plan and in the case of a Committee, the specific duties delegated by the Board
to such Committee, the Administrator shall have the authority, in its
discretion:

                (i) to determine the Fair Market Value of the Common Stock, in
accordance with Section 2(n) of the Plan;

                (ii) to select the Employees and Consultants to whom Options may
from time to time be granted hereunder;

                (iii) to determine whether and to what extent Options are
granted hereunder;

                (iv) to determine the number of shares of Common Stock to be
covered by each such award granted hereunder;

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

                (vi) to determine the terms and conditions, not inconsistent
with the terms of the Plan, of any award granted hereunder (including, but not
limited to, the share price and any restriction or limitation, or any vesting
acceleration or waiver of forfeiture restrictions regarding any Option and/or
the shares of Common Stock relating thereto, based in each case on such factors
as the Administrator shall determine, in its sole discretion);

                (vii) to determine whether and under what circumstances an
Option may be settled in cash under Section 10(g) instead of Common Stock;

                (viii) to reduce the exercise price of any Option to the then
current Fair Market Value if the Fair Market Value of the Common Stock covered
by such Option shall have declined since the date the Option was granted.

            (c) EFFECT OF ADMINISTRATOR'S DECISION. All decisions,
determinations and interpretations of the Administrator shall be final and
binding on all Optionees and any other holders of any Options.



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         5. ELIGIBILITY.

            (a) RECIPIENTS OF GRANTS. Nonstatutory Stock Options may be granted
to Employees and Consultants. Incentive Stock Options may be granted only to
Employees, provided, however, that Employees of an Affiliate shall not be
eligible to receive Incentive Stock Options. An Employee or Consultant who has
been granted an Option may, if he or she is otherwise eligible, be granted an
additional Option or Options.

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

            (c) NO EMPLOYMENT RIGHTS. The Plan shall not confer upon any
Optionee any right with respect to continuation of employment or consulting
relationship with the Company, nor shall it interfere in any way with his or her
right or the Company's right to terminate his or her employment or consulting
relationship at any time, with or without cause.

         6. TERM OF PLAN. The Plan shall become effective upon its adoption by
the Board. It shall continue in effect for a term of ten (10) years unless
sooner terminated under Section 16 of the Plan.

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

         8. LIMITATION ON GRANTS TO EMPLOYEES. Subject to adjustment as provided
in this Plan, the maximum number of Shares which may be subject to options
granted to any one Employee under this Plan for any fiscal year of the Company
shall be 750,000.

         9. OPTION EXERCISE PRICE AND CONSIDERATION.

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

                (i) In the case of an Incentive Stock Option

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

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

                (ii) In the case of a Nonstatutory Stock Option



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                    (A) granted to a person who, at the time of the grant of
such Option, is a Named Executive of the Company, the per share Exercise Price
shall be no less than 100% of the Fair Market Value on the date of grant; or

                    (B) granted to any person other than a Named Executive, the
per Share exercise price shall be no less than 85% of the Fair Market Value per
Share on the date of grant.

            (b) PERMISSIBLE CONSIDERATION. The consideration to be paid for the
Shares to be issued upon exercise of an Option, including the method of payment,
shall be determined by the Administrator (and, in the case of an Incentive Stock
Option, shall be determined at the time of grant) and may consist entirely of
(1) cash, (2) check, (3) promissory note, (4) other Shares that (x) in the case
of Shares acquired upon exercise of an Option either have been owned by the
Optionee for more than six months on the date of surrender or were not acquired,
directly or indirectly, from the Company, and (y) have a Fair Market Value on
the date of surrender equal to the aggregate exercise price of the Shares as to
which said Option shall be exercised, (5) authorization from the Company to
retain from the total number of Shares as to which the Option is exercised that
number of Shares having a Fair Market Value on the date of exercise equal to the
exercise price for the total number of Shares as to which the Option is
exercised, (6) delivery of a properly executed exercise notice together with
irrevocable instructions to a broker to deliver promptly to the Company the
amount of sale or loan proceeds required to pay the exercise price, (7) any
combination of the foregoing methods of payment, or (8) such other consideration
and method of payment for the issuance of Shares to the extent permitted under
Applicable Laws. In making its determination as to the type of consideration to
accept, the Administrator shall consider if acceptance of such consideration may
be reasonably expected to benefit the Company.

         10. EXERCISE OF OPTION.

             (a) PROCEDURE FOR EXERCISE; RIGHTS AS A SHAREHOLDER. Any Option
granted hereunder shall be exercisable at such times and under such conditions
as determined by the Administrator, including performance criteria with respect
to the Company and/or the Optionee, and as shall be permissible under the terms
of the Plan.

             An Option may not be exercised for a fraction of a Share.

             An Option shall be deemed to be exercised when written notice of
such exercise has been given to the Company in accordance with the terms of the
Option by the person entitled to exercise the Option and full payment for the
Shares with respect to which the Option is exercised has been received by the
Company. Full payment may, as authorized by the Administrator, consist of any
consideration and method of payment allowable under Section 9(b) of the Plan.
Until the issuance (as evidenced by the appropriate entry on the books of the
Company or of a duly authorized transfer agent of the Company) of the stock
certificate evidencing such Shares, no right to vote or receive dividends or any
other rights as a shareholder shall exist with respect to the Optioned Stock,
notwithstanding the exercise of the Option. The Company shall issue (or cause to
be issued) such stock certificate promptly upon exercise of the Option. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the stock certificate is issued, except as provided in
Section 13 of the Plan.

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

             (b) TERMINATION OF STATUS AS AN EMPLOYEE OR CONSULTANT. In the
event of termination of an Optionee's Continuous Status as an Employee or
Consultant, such Optionee may, but only within three (3) months (or such other
period of time, not exceeding three (3) months in the case of an Incentive Stock
Option, as is determined by the Administrator, with such determination in the
case of an Incentive Stock Option being made at the time of grant of the Option)
after the date of such termination (but in no event later than the date of
expiration of



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the term of such Option as set forth in the Option Agreement), exercise his or
her Option to the extent that he or she was entitled to exercise it at the date
of such termination. To the extent that the Optionee was not entitled to
exercise the Option at the date of such termination, or if the optionee does not
exercise such Option (which he or she was entitled to exercise) within the time
specified herein, the Option shall terminate.

             (c) DISABILITY OF OPTIONEE. Notwithstanding Section 10(b) above, in
the event of termination of an Optionee's Continuous Status as an Employee or
Consultant as a result of his or her total and permanent disability (as defined
in Section 22(e)(3) of the Code), he or she may, but only within twelve (12)
months from the date of such termination (but in no event later than the date of
expiration of the term of such Option as set forth in the Option Agreement),
exercise his or her Option to the extent he or she was entitled to exercise it
at the date of such termination. To the extent that he or she was not entitled
to exercise the Option at the date of termination, or if he does not exercise
such Option (which he was entitled to exercise) within the time specified
herein, the Option shall terminate.

             (d) DEATH OF OPTIONEE. In the event of the death of an Optionee
during the term of the Option who is at the time of his death an Employee or
Consultant of the Company and who shall have been in Continuous Status as an
Employee or Consultant since the date of grant of the Option, the Option may be
exercised, at any time within twelve (12) months, following the date of death
(but in no event later than the date of expiration of the term of such Option as
set forth in the Option Agreement), by the Optionee's estate or by a person who
acquired the right to exercise the Option by bequest or inheritance but only to
the extent the Optionee was entitled to exercise the Option at the date of
death.

             (e) EXTENSION OF EXERCISE PERIOD. The Administrator shall have full
power and authority to extend the period of time for which an Option is to
remain exercisable following termination of an Optionee's Continuous Service
Status from the periods set forth in Sections 10(b), 10(c) and 10(d) above or in
the Option Agreement to such greater time as the Administrator shall deem
appropriate, provided that in no event shall such Option be exercisable later
than the date of expiration of the term of such Option as set forth in the
Option Agreement.

             (f) RULE 16b-3. Options granted to persons subject to Section 16(b)
of the Exchange Act must comply with Rule 16b-3 and shall contain such
additional conditions or restrictions as may be required thereunder to qualify
for the maximum exemption from Section 16 of the Exchange Act with respect to
Plan transactions.

             (g) BUY-OUT PROVISIONS. The Administrator may at any time offer to
buy out for a payment in cash or Shares an Option previously granted under the
Plan based on such terms and conditions as the Administrator shall establish and
communicate to the Optionee at the time such offer is made.

         11. TAXES.

             (a) As a condition of the exercise of an Option granted under the
Plan, the Optionee (or in the case of the Optionee's death, the person
exercising the Option) shall make such arrangements as the Administrator may
require for the satisfaction of any applicable federal, state, local or foreign
withholding tax obligations that may arise in connection with the exercise of
the Option and the issuance of Shares. The Company shall not be required to
issue any Shares under the Plan until such obligations are satisfied.

             (b) In the case of an Employee and in the absence of any other
arrangement, the Employee shall be deemed to have directed the Company to
withhold or collect from his or her compensation an amount sufficient to satisfy
such tax obligations from the next payroll payment otherwise payable after the
date of an exercise of the Option.



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             (c) In the case of an Optionee other than an Employee (or in the
case of an Employee where the next payroll payment is not sufficient to satisfy
such tax obligations, with respect to any remaining tax obligations), in the
absence of any other arrangement and to the extent permitted under the
Applicable Laws, the Optionee shall be deemed to have elected to have the
Company withhold from the Shares to be issued upon exercise of the Option that
number of Shares having a Fair Market Value determined as of the applicable Tax
Date (as defined below) equal to the amount required to be withheld. For
purposes of this Section 11, the Fair Market Value of the Shares to be withheld
shall be determined on the date that the amount of tax to be withheld is to be
determined under the Applicable Laws (the "Tax Date").

             (d) If permitted by the Administrator, in its discretion, an
Optionee may satisfy his or her tax withholding obligations upon exercise of an
Option by surrendering to the Company Shares that (i) in the case of Shares
previously acquired from the Company, have been owned by the Optionee for more
than six (6) months on the date of surrender, and (ii) have a Fair Market Value
determined as of the applicable Tax Date equal to the amount required to be
withheld.

             (e) Any election or deemed election by an Optionee to have Shares
withheld to satisfy tax withholding obligations under Section 11(c) or (d) above
shall be irrevocable as to the particular Shares as to which the election is
made and shall be subject to the consent or disapproval of the Administrator.
Any election by an Optionee under Section 11(d) above must be made on or prior
to the applicable Tax Date.

             (f) In the event an election to have Shares withheld is made by an
Optionee and the Tax Date is deferred under Section 83 of the Code because no
election is filed under Section 83(b) of the Code, the Optionee shall receive
the full number of Shares with respect to which the Option is exercised but such
Optionee shall be unconditionally obligated to tender back to the Company the
proper number of Shares on the applicable Tax Date.

         12. NON-TRANSFERABILITY OF OPTIONS. The Option may not be sold,
pledged, assigned, hypothecated, transferred, or disposed of in any manner other
than by will or by the laws of descent or distribution; provided that the
Administrator may in its discretion grant transferable Nonstatutory Stock
Options pursuant to option agreements specifying (i) the manner in which such
Nonstatutory Stock Options are transferable and (ii) that any such transfer
shall be subject to the Applicable Laws. The designation of a beneficiary by an
Optionee will not constitute a transfer. An Option may be exercised, during the
lifetime of the Optionee, only by the Optionee or a transferee permitted by this
Section 12.

         13. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION; CORPORATE TRANSACTIONS.

             (a) ADJUSTMENT. Subject to any required action by the shareholders
of the Company, the number of shares of Common Stock covered by each outstanding
Option, the number of shares of Common Stock that have been authorized for
issuance under the Plan but as to which no Options have yet been granted or
which have been returned to the Plan upon cancellation or expiration of an
Option, the maximum number of shares of Common Stock for which Options may be
granted to any employee under Section 8 of the Plan, and the price per share of
Common Stock covered by each such outstanding Option, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the
Administrator, whose determination in that respect shall be final, binding and
conclusive. Except as expressly provided herein, no issuance by the Company of
shares of stock of any class, or securities convertible into shares of stock of
any class, shall affect, and no adjustment by reason thereof shall be made with
respect to, the number or price of shares of Common Stock subject to an Option.

             (b) CORPORATE TRANSACTIONS. In the event of the proposed
dissolution or liquidation of the Company, the Option will terminate immediately
prior to the consummation of such proposed action, unless



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otherwise provided by the Administrator. The Administrator may, in the exercise
of its sole discretion in such instances, declare that any Option shall
terminate as of a date fixed by the Administrator and give each Optionee the
right to exercise his or her Option as to all or any part of the Optioned Stock,
including Shares as to which the Option would not otherwise be exercisable. In
the event of a proposed sale of all or substantially all of the assets of the
Company, or the merger of the Company with or into another corporation, the
Option may be assumed or an equivalent option may be substituted by such
successor corporation or a parent or subsidiary of such successor corporation.
If the successor corporation does not agree to assume the Option or substitute
an equivalent option, the Administrator shall notify the Optionee at least
fifteen (15) prior to the consummation of the transaction. To the extent it has
not been previously exercised, the Option will terminate immediately prior to
the consummation of such transaction.

         14. TIME OF GRANTING OPTIONS. The date of grant of an Option shall, for
all purposes, be the date on which the Administrator makes the determination
granting such Option or such other date as is determined by the Administrator;
provided however that in the case of any Incentive Stock Option, the grant date
shall be the later of the date on which the Administrator makes the
determination granting such Incentive Stock Option or the date of commencement
of the Optionee's employment relationship with the Company. Notice of the
determination shall be given to each Employee or Consultant to whom an Option is
so granted within a reasonable time after the date of such grant.

         15. AMENDMENT AND TERMINATION OF THE PLAN.

             (a) AMENDMENT AND TERMINATION. The Board may at any time amend,
alter, suspend, discontinue or terminate the Plan, but no amendment, alteration,
suspension, discontinuance or termination (other than an adjustment made
pursuant to Section 13 above) shall be made that would materially and adversely
affect the rights of any Optionee under any outstanding grant, without his or
her consent. In addition, to the extent necessary and desirable to comply with
the Applicable Laws, the Company shall obtain stockholder approval of any Plan
amendment in such a manner and to such as degree as required.

             (b) EFFECT OF AMENDMENT OR TERMINATION. No amendment or termination
of the Plan shall materially and adversely affect Options already granted,
unless mutually agreed otherwise between the Optionee and the Administrator,
which agreement must be in writing and signed by such Optionee and the Company.

         16. CONDITIONS UPON ISSUANCE OF SHARES. Shares shall not be issued
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance and delivery of such Shares pursuant thereto shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933, as amended, the Exchange Act, the rules and regulations promulgated
thereunder, and the requirements of any stock exchange upon which the Shares may
then be listed, and shall be further subject to the approval of counsel for the
Company with respect to such compliance.

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

         17. RESERVATION OF SHARES. The Company, during the term of this Plan,
will at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan. The inability of the Company
to obtain authority from any regulatory body having jurisdiction, which
authority is deemed by the Company's 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.

         18. OPTION AGREEMENT. Options shall be evidenced by written option
agreements in such form as the Board shall approve.

         19. SHAREHOLDER APPROVAL. If required by the Applicable Laws,
continuance of the Plan shall be subject to approval by the shareholders of the
Company within twelve (12) months before or after the date the Plan is adopted.
Such shareholder approval shall be obtained in the manner and to the degree
required under the Applicable Laws.



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