1
                                                                   EXHIBIT 99.4

                                    ADDENDUM
                                       TO
                             STOCK OPTION AGREEMENT


                  The following provisions are hereby incorporated into, and are
hereby made a part of, that certain Stock Option Agreement dated
(the "Option Agreement") by and between Computron Software, Inc. (the
"Corporation") and             ("Optionee") evidencing the non-statutory stock
option granted on such date to Optionee under the terms of the Corporation's
1995 Stock Option Plan, and such provisions shall be effective immediately.
Capitalized terms in this Addendum, to the extent not otherwise defined herein,
shall have the meanings assigned to such terms in the Option Agreement.

                             SPECIAL TAX ELECTIONS

                  1.    STOCK WITHHOLDING. Optionee is hereby granted the
election to have the Corporation withhold, at the time the option is exercised,
a portion of the purchased Option Shares with an aggregate Fair Market Value not
to exceed one hundred percent (100%) of the applicable Federal, state and local
income and employment tax withholding liability (the "Taxes") Optionee incurs in
connection with the option exercise.

                        Any such exercise of the election must be effected in
accordance with the following terms and conditions:

                        a.       The election must be made on or before the date
         the liability for the Taxes is determined (the "Tax Determination
         Date").

                        b.       The election shall be irrevocable.

                        c.       The election shall be subject to the approval
         of the Plan Administrator, and none of the Option Shares shall be
         withheld in satisfaction of the Taxes, except to the extent the
         election is approved by the Plan Administrator.

                        d.       The Option Shares withheld pursuant to the
         election shall be valued at Fair Market Value on the Tax Determination
         Date.

                        e.       In no event may the number of shares of Common
         Stock requested to be withheld exceed in Fair Market Value the dollar
         amount of the Taxes.

                        If the stock withholding election is made by Optionee at
a time when Optionee is an officer or director of the Corporation subject to the
short-swing profit

   2
restrictions of Section 16(b) of the Securities Exchange Act of 1934, as
amended, then the following limitations, in addition to the preceding
provisions, shall also be applicable:

                        a.       The election shall not become effective at any
         time prior to the expiration of the six (6)-month period measured from
         the Effective Date of this Addendum indicated below, and no Option
         Shares shall be withheld in connection with any Tax Determination Date
         which occurs before the expiration of such six (6)-month period.

                        b.       The stock withholding election must be made in
         accordance with the following limitations:

                                 (i)      Such election must be made at least
         six (6) months before the Tax Determination Date, or

                                 (ii)     Both the exercise of such election and
         the exercise of the option must occur concurrently within a quarterly
         "window" period. Quarterly window periods shall begin on the third
         (3rd) business day following the date of public release of each
         quarterly or annual statement of the Corporation's sales and earnings
         and end on the earlier of the twelfth (12th) business day following
         such release date or the Tax Determination Date.

         2. STOCK DELIVERY. Optionee is hereby granted the election to deliver,
at the time the option is exercised, one or more shares of Common Stock
previously acquired by Optionee (other than in connection with the acquisition
triggering the Taxes) with an aggregate Fair Market Value not to exceed one
hundred percent (100%) of the Taxes.

                        Any such exercise of the election must be effected in
accordance with the following terms and conditions:

                        a.       The election must be made on or before the Tax
         Determination Date for the Taxes.

                        b.       The election shall be irrevocable.

                        c.       The election shall be subject to the approval
         of the Plan Administrator, and none of the delivered shares of Common
         Stock shall be accepted in satisfaction of the Taxes, except to the
         extent the election is approved by the Plan Administrator.

                        d.       The shares of Common Stock delivered in
         satisfaction of the Taxes shall be valued at Fair Market Value on the
         Tax Determination Date.


                                       2.

   3
                        e.       In no event may the number of delivered shares
         exceed in Fair Market Value the dollar amount of the Taxes.


              IN WITNESS WHEREOF, Computron Software, Inc. has caused this
Addendum to be executed by its duly-authorized officer, and Optionee has
executed this Addendum, all as of the Effective Date specified below.


                                                     COMPUTRON SOFTWARE, INC.

                                                     By:_____________________

                                                     Title:__________________


                                                     ________________________
                                                     OPTIONEE



EFFECTIVE DATE:________________, 199__


                                       3.