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                                                                   Exhibit 10.63

Mr. Greg Myers

                               February 26, 1999

Re: Compensation

     This letter confirms the terms and conditions of your supplemental option
vesting and severance arrangement with Symantec Corporation ("Symantec").

                                    RECITALS

You are currently serving as Symantec's Chief Financial Officer. In the
interest of retaining your services, Symantec is offering the following option
vesting and severance arrangement in addition to the other elements of your
compensation arrangement.

1.)  Employment Termination after Sale of the Company. In the event that your
     employment is terminated without cause within twelve months after the
     consummation of a transaction in which over 50% of the outstanding common
     stock of Symantec is acquired by a person or entity not then under he
     control of Symantec or its shareholders, then (a) all of your unvested
     options will thereupon become immediately exercisable and (b) you will be
     paid severance in an amount equal to twenty four months of your base
     salary at that time, net of tax withholding. For the purposes of this
     agreement, "cause" shall mean (i) any intentional tort (excluding any tort
     relating to a motor vehicle) which causes loss, damage or injury to the
     property or reputation of Symantec or its subsidiaries; (ii) any crime or
     act of fraud or dishonesty against Symantec or its subsidiaries; (iii) the
     commission of a felony; (iv) habitual neglect of duties which is not cured
     within ten (10) days after written notice thereof by the President of
     Symantec to you, (v) the disregard of the written policies of Symantec or
     its subsidiaries which causes loss, damage or injury to the property or
     reputation of Symantec or its subsidiaries which is not cured within ten
     (10) days after written notice of such neglect by the President of
     Symantec to you; (vi) or any material breach of your ongoing obligation
     not to disclose confidential information, and not to assign intellectual
     property developed during employment.

2.)  New Option Grant. You will be given a new grant of 41,973 options (the
     "New Grant") as your promotional grant such that your total number of
     unvested options at the time of this letter is 80,000. The New Grant will
     vest in twenty-four equal monthly installments of 1,748 options starting
     on March 1, 1999. You agree that the New Grant is the only option grant
     that has been given to you during calendar 1999 to the date of this letter.

3.)  Employment Termination without cause. In the event that your employment is
     terminated without cause (a) if such termination takes place on or prior
     to February 26, 2000, then you will be paid severance in an amount equal
     to twenty four months of your base salary at that time, net of tax
     withholding or (b) if such termination takes place after February 26, 2000,

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     then you will be paid severance in an amount equal to eighteen months of
     your base salary at that time, net of tax withholding.

4.)  No Other Changes. Except as set forth herein, all other aspects of your
     compensation and employment, including the terms of your stock option
     agreements, remain unchanged.

5.)  Miscellaneous. This Agreement will bind and inure to the benefit of each
     of the parties hereto and their respective successors and assigns. This
     Agreement shall be governed by and construed in accordance with the laws
     of the State of California. This Agreement constitutes the entire
     agreement between the parties with respect to the subject matter hereof.
     Any waiver, modification or amendment of any provision of this Agreement
     shall be effective only if made in writing and signed by the parties
     hereto.

          IN WITNESS WHEREOF, the parties have executed and delivered this
Agreement effective as of the date first above written.


SYMANTEC CORPORATION                    GREG MYERS

By:  /s/ GORDON EUBANKS                 /s/ GREG MYERS
     ------------------------------     ----------------------------------
     Gordon Eubanks                     Greg Myers
     President and CEO


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