Document:

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                                                                    EXHIBIT 10.3

                               MAINCONTROL, INC.
                             1996 STOCK OPTION PLAN
                             ----------------------
                         (as amended to July 23, 1999)

                                  ARTICLE ONE

                               GENERAL PROVISIONS
                               ------------------

I.  PURPOSE OF THE PLAN

          This 1996 Stock Option Plan is intended to promote the interests of
MainControl, Inc., a Delaware corporation, by providing eligible persons with
the opportunity to acquire a proprietary interest, or otherwise increase their
proprietary interest, in the Corporation as an incentive for them to remain in
the service of the Corporation.

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

II.  ADMINISTRATION OF THE PLAN

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

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

III.  ELIGIBILITY

          A.  The persons eligible to receive option grants under the Plan are
as follows:

               (i)  Employees,

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

               (iii)  consultants and independent contractors who provide
     services to the Corporation (or any Parent or Subsidiary).
<PAGE>

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

IV.  STOCK SUBJECT TO THE PLAN

          A.  The stock issuable under the Plan shall be shares of authorized
but unissued or reacquired Common Stock.  The maximum number of shares of Common
Stock which may be issued over the term of the Plan shall not exceed 6,000,000
shares.

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

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

                                       2
<PAGE>

                                   ARTICLE TWO

                              OPTION GRANT PROGRAM
                              --------------------

I.  OPTION TERMS

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

          A.  Exercise Price.
              --------------

                1. The exercise price per share shall be fixed by the Plan
     Administrator, but shall not be less than eighty-five percent (85%) of the
     Fair Market Value per share of Common Stock on the option grant date.

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

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

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

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

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

                                       3
<PAGE>

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

               1.  Should the Optionee cease to remain in Service for any reason
     other than Permanent Disability or death, then the Optionee shall have a
     period of three (3) months following the date of such cessation of Service
     during which to exercise each outstanding option held by such Optionee.

               2.  Should such Service terminate by reason of Permanent
     Disability, then the Optionee shall have a period of twelve (12) months
     following the date of such cessation of Service during which to exercise
     each outstanding option held by such Optionee.

               3.  Should the Optionee die while holding one or more outstanding
     options, then the personal representative of the Optionee's estate or the
     person or persons to whom the option is transferred pursuant to the
     Optionee's will or in accordance with the laws of descent and distribution
     shall have a period of twelve (12) months following the date of the
     Optionee's death during which to exercise each such option.

               4.  Under no circumstances, however, shall any such option be
     exercisable after the specified expiration of the option term.

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

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

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

          F.  First Refusal Rights.  Until such time as the Common Stock is
              --------------------
first registered under Section 12(g) of the 1934 Act, the Corporation shall have
the right of first refusal

                                       4
<PAGE>

with respect to any proposed disposition by the Optionee (or any successor in
interest) of any shares of Common Stock issued under the Plan. Such right of
first refusal shall be exercisable in accordance with the terms established by
the Plan Administrator and set forth in the document evidencing such right.

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

          H.  Withholding.  The Corporation's obligation to deliver shares of
              -----------
Common Stock upon the exercise of any options granted under the Plan shall be
subject to the satisfaction of all applicable Federal, state and local income
and employment tax withholding requirements.

     II.  INCENTIVE OPTIONS

          The terms specified below shall be applicable to all Incentive
Options.  Except as modified by the provisions of this Section II, all the
provisions of the Plan shall be applicable to Incentive Options.  Options which
are specifically designated as Non-Statutory Options shall not be subject to the
                                                           ---
terms of Section II.

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

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

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

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

                                       5
<PAGE>

III.   CORPORATE TRANSACTION

A.    Immediately prior to the consummation of any Corporate Transaction, the
outstanding Repurchase Right for fifty percent (50%) of the Purchased Shares
subject to such Repurchase Right shall terminate automatically and the affected
Purchased Shares shall vest in full (and the remaining shares still subject to
such Repurchase Right shall continue to vest over the remaining vesting period
at the same rate provided in the documents evidencing the option), provided,
that this percentage shall increase to one hundred percent (100%) if the
Optionee/employee (or member of the Board of Directors) holding shares subject
to such Repurchase Right is terminated without Cause from employment (or removed
without Cause from the Board) by the successor corporation within one year
following the consummation of the Coporate Transaction and if pooling of
interests accounting treatment for the Corporate Transaction is not precluded by
this increased percentage.

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

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

     IV.  CANCELLATION AND REGRANT OF OPTIONS

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

                                       6
<PAGE>

                                 ARTICLE THREE

                                 MISCELLANEOUS
                                 -------------

     I.  FINANCING

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

     II.  ADDITIONAL AUTHORITY

          A.  The Plan Administrator shall have the discretion, exercisable
either at the time an option is granted or at any time while the option remains
outstanding, to extend the period of time for which the option is to remain
exercisable following the Optionee's cessation of Service or death from the
limited period otherwise in effect for that option to such greater period of
time as the Plan Administrator shall deem appropriate, but in no event beyond
the expiration of the option term.

     III.  EFFECTIVE DATE AND TERM OF THE PLAN

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

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

     IV.  AMENDMENT OF THE PLAN

          A.  The Board shall have complete and exclusive power and authority to
amend or modify the Plan in any or all respects.  However, no such amendment or
modification shall, without the consent of the Optionees, adversely affect their
rights and obligations under their

                                       7
<PAGE>

outstanding options. In addition, the Board shall not, without the approval of
the Corporation's stockholders, (i) increase the maximum number of shares
issuable under the Plan, except for permissible adjustments in the event of
certain changes in the Corporation's capitalization, (ii) materially modify the
eligibility requirements for Plan participation or (iii) materially increase the
benefits accruing to Plan participants.

          B.  Options may be granted under the Plan to purchase shares of Common
Stock in excess of the number of shares then available for issuance under the
Plan, provided any such options actually granted may not be exercised until
there is obtained stockholder approval of an amendment sufficiently increasing
the number of shares of Common Stock available for issuance under the Plan.  If
such stockholder  approval is not obtained within twelve (12) months after the
date the excess grants are first made, then any options granted on the basis of
such excess shares shall terminate and cease to be outstanding.

     V.  USE OF PROCEEDS

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

     VI.  REGULATORY APPROVALS

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

     VII.  NO EMPLOYMENT OR SERVICE RIGHTS

          Nothing in the Plan shall confer upon the Optionee any right to
continue in Service for any period of specific duration or interfere with or
otherwise restrict in any way the rights of the Corporation (or any Parent or
Subsidiary employing or retaining Optionee) or of the Optionee, which rights are
hereby expressly reserved by each, to terminate the Optionee's Service at any
time for any reason, with or without cause.

                                       8
<PAGE>

                                    APPENDIX
                                    --------

          The following definitions shall be in effect under the Plan:

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

     A1.  Cause shall mean (i) violation by Optionee/employee or member of the
          -----
Board of Directors of any of the terms and provisions of any agreement between
Optionee/employee or member of the Board of Directors and Corporation; (ii)
dishonesty, fraud, embezzlement or willful disloyalty of Optionee/employee or
member of the Board of Directors; (iii) the Optionee/employee or member of the
Board of Directors being convicted of a felony; and (iv) gross negligence by
Optionee/employee or member of the Board of Directors in the performance of any
material responsibility assigned by the Corporation or required by the law or
the Corporation's Bylaws.

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

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

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

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

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

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

     F.  Corporation shall mean MainControl, Inc., a Delaware corporation.
         -----------

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

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

                                      A-i
<PAGE>

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

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

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

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

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

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

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

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

     N.  Optionee shall mean any person to whom an option is granted under the
         --------
Plan.

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

     P.  Permanent Disability shall mean the inability of the Optionee to engage
         --------------------
in any substantial gainful activity by reason of any medically determinable
physical or mental impairment

                                     A-ii
<PAGE>

that is expected to result in death or has lasted or can be expected to last for
a continuous period of twelve (12) months or more.

     Q.  Plan shall mean the Corporation's 1996 Stock Option Plan, as set forth
         ----
in this document.

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

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

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

     U.  Stock Exchange shall mean either the American Stock Exchange or the New
         --------------
York Stock Exchange.

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

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

                                     A-iii<PAGE>

                                                                    Exhibit 10.4

                               MAINCONTROL, INC.

                         EMPLOYEE STOCK PURCHASE PLAN
                         (Effective as of     , 2000)

      The following constitutes the provisions of the MainControl, Inc.
Employee Stock Purchase Plan.

1. Purpose. The purpose of the Plan is to provide employees of the Company and
its Designated Subsidiaries with an opportunity to purchase Common Stock of
the Company through payroll deductions. It is believed that employee
participation in ownership of the Company on this basis will be to the mutual
benefit of the employees and the Company. It is the intention of the Company
that the Plan qualify as an "Employee Stock Purchase Plan" under Section 423
of the Code. The provisions of the Plan shall, accordingly, be construed so as
to extend and limit participation in a manner consistent with the requirements
of that section of the Code.

2. Definitions.

      "Board" means the Board of Directors of the Company.

      "Code" means the Internal Revenue Code of 1986, as amended, and the
applicable rulings and regulations (including any proposed regulations)
thereunder.

      "Common Stock" means the Common Stock, par value $0.001 per share, of
the Company.

      "Company" means MainControl, Inc. and its Subsidiaries.

      "Committee" means the committee appointed by and serving at the pleasure
of the Board to administer the Plan pursuant to Section 14.

      "Compensation" means base pay, plus any amounts attributable to
overtime, shift premium, incentive compensation, bonuses and commissions
(exclusive of "spot bonuses" and any other such item specifically directed for
all Employees by the Board or a committee), designated by the Board, but shall
exclude severance pay, pay in lieu of vacations, back pay awards, disability
benefits, deferred compensation, or any other compensation excluded in the
discretion of the Board.

      Compensation shall be determined before giving effect to any salary
reduction agreement pursuant to a qualified cash or deferred arrangement
within the meaning of Section 401(k) of the Code or to any similar reduction
agreement pursuant to any cafeteria plan (within the meaning of Section 125 of
the Code).

      "Continuous Status as an Employee" shall mean the absence of any
interruption or termination of service as an Employee. Continuous Status as an
Employee shall not be considered interrupted in the case of a leave of absence
agreed to in writing by the Company, provided that such leave is for a period
of not more than 90 days or re-employment upon the expiration of such leave is
guaranteed by contract or statute.

      "Designated Subsidiaries" means the Subsidiaries which have been
designated by the Board from time to time in its sole discretion as eligible
to participate in the Plan.

      "Employee" means any person, other than a "highly compensated employee"
as such term is defined in Section 414(q) of the Code, who is customarily
employed for at least twenty (20) hours per week and more than five (5) months
in a calendar year by the Company or one of its Designated Subsidiaries.

      "Exercise Date" means the last business day of each Exercise Period in
an Offering Period.

                                       1
<PAGE>

      "Exercise Period" means a six-month period commencing on an Offering Date
or on the first business day after any Exercise Date in an Offering Period.

      "Offering Date" means the first day of each Offering Period of the Plan.

      "Offering Period" means a period during which options granted pursuant to
the Plan may be exercised as the Board so determines in its sole discretion.

      "Plan" means the MainControl, Inc. Employee Stock Purchase Plan.

      "Subsidiary" means any corporation, domestic or foreign, in which the
Company owns, directly or indirectly, 50% or more of the voting shares.

3. Eligibility.

      (a) Any person who is an Employee, as defined in Section 2, on the
Offering Date of a given Offering Period shall be eligible to participate in
such Offering Period under the Plan, subject to the requirements of Section
5(a) and the limitations imposed by Section 423(b) of the Code.

      (b) Notwithstanding any provisions of the Plan to the contrary, no
Employee shall be granted an option under the Plan if (i) immediately after the
grant, such Employee (or any other person whose stock ownership would be
attributed to such Employee pursuant to Section 424(d) of the Code) would own
shares and/or hold outstanding options to purchase shares possessing five
percent (5%) or more of the total combined voting power or value of all classes
of shares of the Company or of any subsidiary of the Company, or (ii) the rate
of withholding under such option would permit the employee's rights to purchase
shares under all employee stock purchase plans (described in Section 423 of the
Code) of the Company and its subsidiaries to accrue (i.e., become exercisable)
at a rate which exceeds Twenty-Five Thousand Dollars ($25,000) of fair market
value of such shares (determined at the time such option is granted) for each
calendar year in which such option is outstanding at any time.

      (c) Upon reemployment of a former Employee, such former Employee will
again be eligible to participate in the Plan, subject to the requirements of
Section 5(a) and the limitations imposed by Section 423(b) of the Code.

4. Offering Periods.

      The Plan shall be implemented by consecutive Offering Periods with a new
Offering Period commencing on or about each October 1 or April 1. If the
Company cannot make an offer under the Plan on or about any October 1 or April
1 because of restrictions imposed by law, the Company may make an offer as soon
as practical after the expiration of such restrictions. The Board or the
Committee shall have the power to change the duration of Offering Periods with
respect to future offerings without stockholder approval, if such change is
announced at least fifteen (15) days prior to the scheduled beginning of the
first Offering Period to be affected.

5. Participation.

      (a) An eligible Employee may become a participant in the Plan by
completing a subscription agreement authorizing payroll deductions on the form
provided by the Company and filing it with the Company's payroll office not
less than 15 days prior to the Offering Date of the first Offering Period with
respect to which it is to be effective, unless a later time for filing the
subscription agreement is set for all eligible Employees with respect to such
Offering Period. Once enrolled, the Employee remains enrolled in each
subsequent Offering Period of the Plan at the designated payroll deduction
unless the Employee withdraws by providing the Company with a written Notice of
Withdrawal or files a new subscription agreement prior to the

                                       2
<PAGE>

applicable Offering Date changing the Employee's designated payroll deduction.
An eligible Employee may participate in only one Offering Period at a time.

      (b) Payroll deductions for a participant shall commence with the first
payroll period following the Offering Date, or the first payroll following the
date of valid filing of the subscription agreement, whichever is later, and
shall end when terminated by the participant as provided in Section 10.

6. Payroll Deductions.

      (a) At the time a participant files his or her subscription agreement, he
or she shall elect to have payroll deductions made on each payday during all
subsequent Offering Periods at a rate not exceeding ten percent (10%), or such
other rate as may be determined from time to time by the Board, of the
Compensation which he or she would otherwise receive on such payday without
regard to deferral elections, provided that the aggregate of such payroll
deductions during any Offering Period shall not exceed ten percent (10%), or
such other percentage as may be determined from time to time by the Board, of
the aggregate Compensation which he or she would otherwise have received during
said Offering Period. Notwithstanding the foregoing, payroll deduction with
respect to the initial Offering Period will not commence until the Board so
determines in its sole discretion on or after the first payday following the
Company's first trading date on the Nasdaq National Market.

      (b) All payroll deductions authorized by a participant shall be credited
to his or her account under the Plan. A participant may not make any additional
payments into such account.

      (c) A participant may discontinue his or her participation in the Plan as
provided in Section 10, or may change the rate of his or her payroll deductions
during an Offering Period by completing and filing with the Company a new
authorization for payroll deduction, provided that the Board may, in its
discretion, impose reasonable and uniform restrictions on participants' ability
to change the rate of payroll deductions. The change in rate shall be effective
no later than fifteen (15) days following the Company's receipt of the new
authorization. A participant may decrease or increase the amount of his or her
payroll deductions as of the beginning of an Offering Period by completing and
filing with the Company, at least fifteen (15) days prior to the beginning of
such Offering Period, a new payroll deduction authorization.

      (d) Notwithstanding the foregoing, to the extent necessary, but only to
such extent, to comply with Section 423(b)(8) of the Code and Section 3(b)
herein, a participant's payroll deductions may be automatically decreased to 0%
at such time during any Exercise Period which is scheduled to end in the
current calendar year that the aggregate of all payroll deductions accumulated
with respect to the applicable Offering Period and any other Offering Period
ending within the same calendar year equals $25,000. Payroll deductions shall
recommence at the rate provided in such participant's subscription agreement at
the beginning of the next succeeding Exercise Period, unless terminated by the
participant as provided in Section 10.

7. Grant of Option.

      (a) On each Offering Date, each participant shall be granted an option to
purchase on each Exercise Date (at the per share option price) a number of full
shares of Common Stock arrived at by dividing such participant's total payroll
deductions to be accumulated prior to such Exercise Date and retained in the
participant's account as of the Exercise Date by the lower of (i) eighty-five
percent (85%) of the fair market value of a share of Common Stock at the
Offering Date, or (ii) eighty-five percent (85%) of the fair market value of a
share of Common Stock at the Exercise Date; provided, however, that the maximum
number of shares a participant may purchase during each Offering Period shall
be determined by (i) dividing $50,000 by the fair market value of a share of
Common Stock on the Offering Date or (ii) if less, by the "Maximum Cap" set for
such Offering Period; and provided further that such purchase shall be subject
to the limitations set forth in Sections 3(b) and 12 hereof. The "Maximum Cap"
for each Offering Period shall be the number of shares purchasable under the
Plan during that Offering Period with the maximum payroll deductions permitted
by

                                       3
<PAGE>

Section 6(a) hereof, based upon the fair market value of a share of Common
Stock at the beginning of the Offering Period. The fair market value of a share
of Common Stock shall be determined as provided in Section 7(b) herein.

      (b) The option price per share of such shares shall be the lower of: (i)
eighty-five percent (85%) of the fair market value of a share of Common Stock
at the Offering Date; or (ii) eighty-five percent (85%) of the fair market
value of a share of Common Stock at the Exercise Date. The fair market value of
a share of Common Stock on said dates shall be determined by the Board, based
upon such factors as the Board determines relevant; provided, however, that if
there is a public market for the Common Stock, the fair market value of a share
of Common Stock on a given date shall be the reported bid price for the Common
Stock as of such date; or, in the event that the Common Stock is listed on a
national securities exchange, the fair market value of a share of Common Stock
shall be an amount equal to the average of the high and low sales price of a
share of Common Stock on the exchange as of such date.

8. Exercise of Option.

      (a) Unless a participant withdraws from the Offering Period as provided
in Section 10, his or her option for the purchase of shares will be exercised
automatically at each Exercise Date, and the maximum number of full shares
subject to option will be purchased at the applicable option price with the
accumulated payroll deductions in his or her account. The shares purchased upon
exercise of an option hereunder shall be deemed to be transferred to the
participant on the Exercise Date.

      (b) During his or her lifetime, a participant's option to purchase shares
hereunder is exercisable only by the participant.

      (c) The Board may require, as a condition precedent to any purchase under
the Plan, appropriate arrangements with the participant for the withholding of
any applicable Federal, state, local or foreign withholding or other taxes.

9. Delivery.

      As promptly as practicable after the Exercise Date of each Offering
Period, the Company shall arrange for the shares purchased upon exercise of his
or her option to be electronically credited to the participant's designated
brokerage account at one of the securities brokerage firms participating in the
Company's direct deposit program from time to time. Any cash remaining to the
credit of a participant's account under the Plan after a purchase by him or her
of shares at the Exercise Date of each Offering Period which merely represents
a fractional share shall be credited to the participant's account for the next
subsequent Offering Period; any additional cash shall be returned to said
participant.

10. Withdrawal; Termination of Employment.

      (a) A participant may withdraw all, but not less than all, the payroll
deductions credited to his or her account under the Plan at any time prior to
an Exercise Date by giving written notice to the Company on a form provided for
such purpose. If the participant withdraws from the Offering Period, all of the
participant's payroll deductions credited to his or her account will be paid to
the participant as soon as practicable after receipt of the notice of
withdrawal and his or her option for the current Offering Period will be
automatically canceled, and no further payroll deductions for the purchase of
shares will be made during such Offering Period or subsequent Offering Periods,
except pursuant to a new subscription agreement filed in accordance with
Section 6 hereof.

      (b) Upon termination of the participant's Continuous Status as an
Employee prior to an Exercise Date of an Offering Period for any reason,
including retirement or death, the payroll deductions accumulated in his or her
account will be returned to him or her as soon as practicable after such
termination or, in the case of

                                       4
<PAGE>

death, to the person or persons entitled thereto under Section 14, and his or
her option will be automatically canceled.

      (c) In the event an Employee fails to remain in Continuous Status as an
Employee of the Company for at least twenty (20) hours per week during an
Offering Period in which the employee is a participant, he or she will be
deemed to have elected to withdraw from the Plan, and the payroll deductions
credited to his or her account will be returned to the participant and the
option canceled.

      (d) A participant's withdrawal from an Offering Period will not have any
effect upon his or her eligibility to participate in a succeeding Offering
Period by executing and delivering to the Company a new payroll deduction form
or in any similar plan which may hereafter be adopted by the Company.

11. Automatic Transfer to Low Price Offering Period.

      In the event that the fair market value of the Common Stock is lower on
the first day of an Exercise Period (the "Subsequent Exercise Period") than it
was on the first Offering Date for that Offering Period (the "Initial Offering
Period"), all participants in the Plan on the first day of the Subsequent
Exercise Period shall be deemed to have withdrawn from the Initial Offering
Period on the first day of the Subsequent Exercise Period and to have enrolled
as participants in a new Offering Period which begins on or about that day. A
participant may elect to remain in the Initial Offering Period by filing a
written statement declaring such election with the Company prior to the time of
the automatic change to the new Offering Period.

12. Interest.

      No interest shall accrue on the payroll deductions of a participant in
the Plan.

13. Stock.

      Subject to adjustment upon changes in capitalization of the Company as
provided in Section 19, the maximum number of shares of Common Stock which
shall be reserved for sale under the Plan shall be 4,000,000. If the total
number of shares which would otherwise be subject to options granted pursuant
to Section 7(a) hereof on the Offering Date of an Offering Period exceeds the
number of shares then available under the Plan (after deduction of all shares
for which options have been exercised or are then outstanding), the Company
shall make a pro rata allocation of the shares remaining available for option
grant in as uniform and equitable a manner as is practicable. In such event,
the Company shall give written notice of such reduction of the number of shares
subject to the option to each participant affected thereby and shall return any
excess funds accumulated in each participant's account as soon as practicable
after the affected Exercise Date of such Offering Period. Common Stock to be
sold to participants in the Plan may be, at the election of the Company, either
treasury shares or shares authorized but unissued.

      (a) Participant will have no interest or voting rights in shares covered
by his or her option until such option has been exercised.

      (b) Shares to be delivered to a participant under the Plan will be
credited electronically to a brokerage account in the name of the participant
at one of the brokerage firms participating from time to time in the Company's
direct deposit program.

14. Administration.

      The Plan shall be administered by the Board or the Committee. The Board
or the Committee shall have the authority to (i) make all factual
determinations in the administration or interpretation of the Plan, (ii)
establish administrative regulations to further the purpose of the Plan, and
(iii) take any other action desirable or necessary to interpret, construe or
implement properly the provisions of the Plan. The administration,

                                       5
<PAGE>

interpretation or application of the Plan by the Board or the Committee shall
be final, conclusive and binding upon all participants. Members of the Board or
the Committee who are eligible Employees are permitted to participate in the
Plan, provided that:

          (a) Members of the Board who participate in the Plan may not vote
    on any matter affecting the administration of the Plan or the grant of
    any option pursuant to the Plan.

          (b) If a Committee is established to administer the Plan, no
    member of the Board who participates in the Plan may be a member of the
    Committee.

15. Designation of Beneficiary.

      (a) A participant may file a written designation of a beneficiary who is
to receive shares and/or cash, if any, from the participant's account under the
Plan in the event of such participant's death at a time when cash or shares are
held for his or her account.

      (b) Such designation of beneficiary may be changed by the participant at
any time by written notice. In the event of the death of a participant in the
absence of a valid designation of a beneficiary who is living at the time of
such participant's death, the Company shall deliver such shares and/or cash to
the executor or administrator of the estate of the participant; or if no such
executor or administrator has been appointed (to the knowledge of the Company),
the Company, in its discretion, may deliver such shares and/or cash to the
spouse or to any one or more dependents or relatives of the participant, or if
no spouse, dependent or relative is known to the Company, then to such other
person as the Company may reasonably designate.

16. Rights Not Transferable.

      Neither payroll deductions credited to a participant's account nor any
rights with regard to the exercise of an option or to receive shares under the
Plan may be assigned, transferred, pledged or otherwise disposed of in any way
(other than by will, the laws of descent and distribution, or as provided in
Section 15 hereof) by the participant. Any such attempt at assignment,
transfer, pledge or other disposition shall be without effect, except that the
Company may treat such act as an election to withdraw funds in accordance with
Section 10.

17. Use of Funds.

      All payroll deductions received or held by the Company under the Plan may
be used by the Company for any corporate purpose, and the Company shall not be
obligated to segregate such payroll deductions.

18. Reports.

      Individual accounts will be maintained for each participant in the Plan.
Statements of account will be given to participating Employees as soon as
practicable following each Exercise Date. Such statements will set forth the
amounts of payroll deductions, the per share purchase price, the number of
shares purchased and the remaining cash balance, if any.

19. Adjustments Upon Changes in Capitalization.

      Subject to any required action by the stockholders of the Company, the
number of shares of Common Stock covered by each option under the Plan which
has not yet been exercised and the number of shares of Common Stock which have
been authorized for issuance under the Plan but have not yet been placed under
option (collectively, the "Reserves"), as well as the price per share of Common
Stock covered by each option under the Plan which has not yet been exercised,
shall be proportionately adjusted for any increase or decrease in the number of
issued shares of Common Stock resulting from a stock split, stock dividend,
combination or reclassification of the Common Stock or any other increase or
decrease in the number of shares of Common Stock effected without receipt of
consideration by the Company; provided, however, that conversion of any

                                       6
<PAGE>

convertible securities of the Company shall not be deemed to have been
"effected without receipt of consideration." Such adjustment shall be made by
the Board, whose determination in that respect shall be final, binding and
conclusive. Except as expressly provided herein, no issue 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 option.

      In the event of the proposed dissolution or liquidation of the Company,
the Offering Period will terminate immediately prior to the consummation of
such proposed action, unless otherwise provided by the Board. 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, each option under the
Plan shall be assumed or an equivalent option shall be substituted by such
successor corporation or a parent or subsidiary of such successor corporation,
unless the Board determines, in the exercise of its sole discretion and in lieu
of such assumption or substitution, that the participant shall have the right
to exercise the option as to all of the optioned stock, including shares as to
which the option would not otherwise be exercisable. If the Board makes an
option fully exercisable in lieu of assumption or substitution in the event of
a merger or sale of assets, the Board shall notify the participant that the
option shall be fully exercisable, and the option will terminate upon the
expiration of such period.

      The Board may, if it so determines in the exercise of its sole
discretion, also make provision for adjusting the Reserves, as well as the
price per share of Common Stock covered by each outstanding option, in the
event that the Company effects one or more reorganizations, recapitalizations,
rights offerings or other increases or reductions of shares of its outstanding
Common Stock, and in the event of the Company being consolidated with or merged
into any other corporation.

20. Amendment or Termination.

      The Board may at any time and for any reason terminate or amend the Plan.
Except as provided in Section 19, no such termination will affect options
previously granted. Except as provided in Section 19, no amendment may make any
change in any option theretofore granted which adversely affects the rights of
any participant. In addition, to the extent necessary, but only to such extent,
to comply with Rule 16b-3 under the Securities Exchange Act of 1934, as
amended, or with Section 423 of the Code (or any successor rule or provision or
any other applicable law or regulation), the Company shall obtain stockholder
approval of an amendment in such a manner and to such a degree as so required.

21. Notices.

      All notices or other communications by a participant to the Company in
connection with the Plan shall be deemed to have been duly given when received
in the form specified by the Company at the location, or by the person,
designated by the Company for the receipt thereof. Notices given by means of
the Company's e.mail system will be deemed to be written notices under the
Plan.

22. Stockholder Approval.

      The Plan was adopted by the Board on May 4, 2000 and approved by the
shareholders of the Company on     , 2000 in accordance with the requirements
of Section 423(b)(2) of the Code.

23. Conditions Upon Issuance of Shares.

      Shares shall not be issued with respect to an option unless the exercise
of such option and the issuance and delivery of such shares pursuant thereto
shall comply with all applicable provisions of law, domestic or foreign,
including, without limitation, the Securities Act of 1933, as amended, the
Securities Exchange Act of 1934, as amended, the rules and regulations
promulgated thereunder, and the requirements of any stock

                                       7
<PAGE>

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, if required by applicable
securities laws, the Company may require the participant for whose account the
option is being exercised to represent and warrant at the time of 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
applicable provisions of law.

24. No Right to Employment.

      Nothing shall confer upon any employee of the Company any right to
continued employment with the Company any right to continued employment with
the Company or interfere in any way with the right of the Company to terminate
the employment of any of its employees at any time, with or without cause.

25. Term of Plan.

      The Plan shall remain in effect until May 4, 2010, unless terminated
earlier in accordance with Section 20.

26. Governing Law.

      All rights and obligations under the Plan shall be construed and
interpreted in accordance with the laws of the State of Delaware, without
giving effect to principles of conflicts of laws.

                                       8

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