Document:

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                                  SENTO CORPORATION

                          1999 OMNIBUS STOCK INCENTIVE PLAN

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                                  TABLE OF CONTENTS

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

2.   DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
          (a)  "AWARD AGREEMENT" . . . . . . . . . . . . . . . . . . . . . . . . . .1
          (b)  "BOARD OF DIRECTORS". . . . . . . . . . . . . . . . . . . . . . . . .1
          (c)  "CAUSE,"  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
          (d)  "CHANGE IN CONTROL" . . . . . . . . . . . . . . . . . . . . . . . . .1
          (e)  "CODE". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (f)  "COMMITTEE" . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (g)  "COMPANY" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (h)  "COMMON STOCK". . . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (i)  "DIRECTOR". . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (j)  "DISABILITY". . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (k)  "EFFECTIVE DATE". . . . . . . . . . . . . . . . . . . . . . . . . . .2
          (l)  "EXCHANGE ACT". . . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (m)  "EXECUTIVE OFFICER" . . . . . . . . . . . . . . . . . . . . . . . . .3
          (n)  "EXERCISE DATE" . . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (o)  "FAIR MARKET VALUE" . . . . . . . . . . . . . . . . . . . . . . . . .3
          (p)  "INCENTIVE AWARD" . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (q)  "INCENTIVE STOCK OPTION". . . . . . . . . . . . . . . . . . . . . . .3
          (r)  "ISSUE DATE". . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (s)  "NON-EMPLOYEE DIRECTOR" . . . . . . . . . . . . . . . . . . . . . . .3
          (t)  "NON-QUALIFIED STOCK OPTION". . . . . . . . . . . . . . . . . . . . .3
          (u)  "OPTION". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (v)  "PARTICIPANT" . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (w)  "PHANTOM STOCK. . . . . . . . . . . . . . . . . . . . . . . . . . . .3
          (x)  "PLAN". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
          (y)  "REFERENCE VALUE" . . . . . . . . . . . . . . . . . . . . . . . . . .4
          (z)  "RESTRICTED STOCK". . . . . . . . . . . . . . . . . . . . . . . . . .4
          (aa) "RULE 16b-3". . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
               (ab) "SECURITIES ACT" . . . . . . . . . . . . . . . . . . . . . . . .4
               (ac) "STAND-ALONE SAR". . . . . . . . . . . . . . . . . . . . . . . .4
               (ad) "STOCK BONUS". . . . . . . . . . . . . . . . . . . . . . . . . .4
               (ae) "SUBSIDIARY. . . . . . . . . . . . . . . . . . . . . . . . . . .4
               (af) "TANDEM SAR. . . . . . . . . . . . . . . . . . . . . . . . . . .4
          (ag) "VESTING DATE . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.   STOCK SUBJECT TO THE PLAN.. . . . . . . . . . . . . . . . . . . . . . . . . . .4
          (a)  SHARES AVAILABLE FOR AWARDS . . . . . . . . . . . . . . . . . . . . .4
          (b)  ADJUSTMENT FOR CHANGE IN CAPITALIZATION.. . . . . . . . . . . . . . .4
          (c)  RE-USE OF SHARES. . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.   ADMINISTRATION OF THE PLAN. . . . . . . . . . . . . . . . . . . . . . . . . . .5

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5.   ELIGIBILITY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

6.   AWARDS UNDER THE PLAN; AWARD AGREEMENT. . . . . . . . . . . . . . . . . . . . .6

     7.   OPTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
          (a)  IDENTIFICATION OF OPTIONS . . . . . . . . . . . . . . . . . . . . . .6
          (b)  EXERCISE PRICE. . . . . . . . . . . . . . . . . . . . . . . . . . . .6
          (c)  TERM AND EXERCISE OF OPTIONS. . . . . . . . . . . . . . . . . . . . .6
          (d)  LIMITATIONS ON INCENTIVE STOCK OPTIONS. . . . . . . . . . . . . . . .7
          (e)  EFFECT OF TERMINATION OF EMPLOYMENT . . . . . . . . . . . . . . . . .7
          (g)  ACCELERATION OF EXERCISE DATE UPON CHANGE IN CONTROL. . . . . . . . .8

8.   TANDEM SARS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
          (a)  BENEFIT UPON EXERCISE . . . . . . . . . . . . . . . . . . . . . . . .9
          (b)  TERM AND EXERCISE OF TANDEM SAR.. . . . . . . . . . . . . . . . . . .9

9.   STAND-ALONE SARS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
          (a)  BENEFIT UPON EXERCISE . . . . . . . . . . . . . . . . . . . . . . . 10
          (b)  TERM AND EXERCISE OF STAND-ALONE SARS . . . . . . . . . . . . . . . 10
          (c)  EFFECT OF TERMINATION OF EMPLOYMENT OR REMOVAL FROM BOARD OF
               DIRECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
          (d)  ACCELERATION OF EXERCISE DATE UPON CHANGE IN CONTROL. . . . . . . . 11

10.  RESTRICTED STOCK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
          (a)  ISSUE DATE AND VESTING DATE.. . . . . . . . . . . . . . . . . . . . 11
          (b)  CONDITIONS TO VESTING . . . . . . . . . . . . . . . . . . . . . . . 11
          (c)  RESTRICTIONS ON TRANSFER PRIOR TO VESTING.. . . . . . . . . . . . . 11
          (d)  DIVIDENDS ON RESTRICTED STOCK . . . . . . . . . . . . . . . . . . . 12
          (e)  ISSUANCE OF CERTIFICATES. . . . . . . . . . . . . . . . . . . . . . 12
          (f)  CONSEQUENCES OF VESTING . . . . . . . . . . . . . . . . . . . . . . 12
          (g)  EFFECT OF TERMINATION OF EMPLOYMENT OR REMOVAL FROM BOARD OF
               DIRECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
          (h)  EFFECT OF CHANGE IN CONTROL . . . . . . . . . . . . . . . . . . . . 13
          (i)  SPECIAL PROVISIONS REGARDING RESTRICTED STOCK AWARDS. . . . . . . . 13

11.  PHANTOM STOCK.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
          (a)  VESTING DATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
          (b)  BENEFIT UPON VESTING. . . . . . . . . . . . . . . . . . . . . . . . 14
          (c)  CONDITIONS TO VESTING . . . . . . . . . . . . . . . . . . . . . . . 14
          (d)  EFFECT OF TERMINATION OF EMPLOYMENT OR REMOVAL FROM BOARD OF
               DIRECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
          (e)  EFFECT OF CHANGE IN CONTROL . . . . . . . . . . . . . . . . . . . . 15
          (f)  SPECIAL PROVISIONS REGARDING PHANTOM STOCK AWARDS . . . . . . . . . 15

     12.  STOCK BONUSES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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13.  RIGHTS AS A STOCKHOLDER. . . . . . . . . . . . . . . . . . . . . . . . . .  . 15

14.  NO SPECIAL EMPLOYMENT RIGHTS; NO RIGHT TO INCENTIVE AWARD. . . . . . . . . . .16

15.  SECURITIES MATTERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

16.  WITHHOLDING TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

17.  NOTIFICATION OF ELECTION UNDER SECTION 83(B) OF THE CODE. . . . . . . . . . . 17

18.  NOTIFICATION UPON DISQUALIFYING DISPOSITION UNDER SECTION 421(B) OF
     THE CODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

19.  AMENDMENT OR TERMINATION OF THE PLAN. . . . . . . . . . . . . . . . . . . . . 17

20.  TRANSFERS UPON DEATH; NONASSIGNABILITY. . . . . . . . . . . . . . . . . . . . 17

21.  EXPENSES AND RECEIPTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

22.  FAILURE TO COMPLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

23.  EFFECTIVE DATE AND TERM OF PLAN.. . . . . . . . . . . . . . . . . . . . . . . 18

24.  APPLICABLE LAW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

25.  PARTICIPANT RIGHTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

26.  UNFUNDED STATUS OF AWARDS. . . . . . . . . . . . . . . . . . . . . . . . . . .19

27.  NO FRACTIONAL SHARES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

28.  BENEFICIARY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

29.  INTERPRETATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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                                  SENTO CORPORATION

                          1999 OMNIBUS STOCK INCENTIVE PLAN

1.   ESTABLISHMENT AND PURPOSE.

     There is hereby adopted the Sento Corporation 1999 Omnibus Stock Incentive
Plan (the "PLAN").  The Plan shall be the successor to the Stock Incentive Plan,
as amended and restated on August 11, 1998 (the "PREDECESSOR PLAN").  Upon
adoption of the Plan by the Board of Directors and approval of the Plan by
stockholders of Sento Corporation (the "COMPANY"), no further awards shall be
made under the Predecessor Plan.  If the Plan is not approved by the
stockholders of the Company, the Predecessor Plan shall remain in full force and
effect.  The Plan is intended to promote the interests of the Company and the
stockholders of the Company by providing officers and other employees of the
Company (including directors who are also employees of the Company) and persons
who are expected to make a long-term contribution to the success of the Company
with appropriate incentives and rewards to encourage them to enter into and
continue in the employ of the Company and/or to acquire a proprietary interest
in the long-term success of the Company, thereby aligning their interest more
closely to the interest of stockholders.

2.   DEFINITIONS.

     As used in the Plan, the following definitions apply to the terms indicated
below:

     (a)  "AWARD AGREEMENT" shall mean the written agreement between the Company
          and a Participant evidencing an Incentive Award.

     (b)  "BOARD OF DIRECTORS" shall mean the Board of Directors of the Company
          or any Subsidiary of the Company as the case may be.

     (c)  "CAUSE," when used in connection with the termination of a
          Participant's employment by the Company, shall mean (i) the willful
          and continued failure by the Participant substantially to perform his
          duties and obligations to the Company (other than any such failure
          resulting from his incapacity due to physical or mental illness) or
          (ii) the willful engaging by the Participant in misconduct which is
          materially injurious to the Company.  For purposes of this Section
          2(c), no act, or failure to act, on a Participant's part shall be
          considered "willful" unless done, or omitted to be done, by the
          Participant in bad faith and without reasonable belief that his action
          or omission was in the best interest of the Company.  The Committee
          shall determine whether a termination of employment is for Cause.

     (d)  "CHANGE IN CONTROL" shall mean any of the following occurrences:

               (i)  any "person," as such term is used in Sections 13(d) and
          14(d) of the Exchange Act (other than the Company, any trustee or
          other fiduciary holding securities under an employee benefit plan of
          the Company or any corporation owned, directly or indirectly, by the
          stockholders of the Company in substantially the same proportions as
          their ownership of stock of the Company), is or becomes the
          "beneficial owner" (as defined in Rule 13d-3

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          under the Exchange Act), directly or indirectly, of securities of the
          Company representing 50% or more of the combined voting power of the
          Company's then out standing securities;

                (ii) during any period of not more than two consecutive years
          (not including any period prior to the adoption of the Plan),
          individuals who at the beginning of such period constitute the Board
          of Directors and any new director (other than a director designated by
          a person who has entered into an agreement with the Company to effect
          a transaction described in clause (i), (iii) or (iv) of this Section)
          whose election by the Board of Directors or nomination for election
          was approved by a vote of at least two-thirds (2/3) of the directors
          then still in office who either were directors at the beginning of the
          period or whose election or nomination for election was previously so
          approved, cease for any reason to constitute at least a majority
          thereof;

               (iii) the stockholders of the Company approve, and the Company
          consummates, a merger or consolidation of the Company with any other
          corporation, other than (A) a merger or consolidation which would
          result in the voting securities of the Company outstanding immediately
          prior thereto continuing to represent (either by remaining outstanding
          or by being converted into voting securities of the surviving entity)
          more than 50% of the  combined voting power of the voting securities
          of the Company or such surviving entity outstanding immediately after
          such merger or consolidation or (B) a merger or consolidation effected
          to implement a recapitalization of the Company (or similar
          transaction) in which no "person" (as herein above defined) acquires
          more than 50% of the combined voting power of the Company's then
          outstanding securities; or

                (iv) the stockholders of the Company approve, and the Company
          consummates, a plan of complete liquidation of the Company or an
          agreement for the sale or disposition by the Company of all or
          substantially all of the Company's assets.

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

     (f)  "COMMITTEE" shall mean the committee of the Board of Directors
          appointed by the Board of Directors to administer the Plan.  The
          Committee shall consist of two or more persons each of whom is an
          "outside director" within the meaning of Section 162(m) of the Code
          and a "Non-Employee Director" within the meaning of Rule 16b-3 under
          the Exchange Act (or who satisfies any other criteria for
          administering employee benefit plans as may be specified by the
          Securities and Exchange Commission in order for transactions under
          such plan to be exempt from the provisions of Section 16(b) of the
          Exchange Act).

     (g)  "COMPANY" shall mean, Sento Corporation, a Utah corporation, or any
          successor corporation.

     (h)  "COMMON STOCK" shall mean the common stock, $.25 par value, of the
          Company.

     (i)  "DIRECTOR" shall mean any member of the Board of Directors.

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     (j)  "DISABILITY" shall mean, when used in connection with the exercise of
          an Incentive Stock Option following termination of employment,
          disability within the meaning of Section 22(e)(3) of the Code.

     (k)  "EFFECTIVE DATE" shall mean the date upon which this Plan is adopted
          by the Board of Directors.

     (l)  "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as
          amended from time to time.

     (m)  "EXECUTIVE OFFICER" shall have the meaning set forth in Rule 3b-7
          promulgated under the Exchange Act.

     (n)  "EXERCISE DATE" shall mean the date on which a Participant may
          exercise an Incentive Award.

     (o)  "FAIR MARKET VALUE" of a share of Common Stock, as of a date of
          determination, shall mean (i) the closing sales price per share of
          Common Stock on the national securities exchange on which such stock
          is principally traded for the last preceding date on which there was a
          sale of such stock on such exchange, or (ii) if the shares of Common
          Stock are not listed or admitted to trading on any such exchange, the
          closing price as reported by the Nasdaq Stock Market for the last
          preceding date on which there was a sale of such stock on such
          exchange, or (iii) if the shares of Common Stock are not then listed
          on the Nasdaq Stock Market, the average of the highest reported bid
          and lowest reported asked prices for the shares of Common Stock as
          reported by the National Association of Securities Dealers, Inc.
          Automated Quotations System for the last preceding date on which there
          was a sale of such stock in such market, or (iv) if the shares of
          Common Stock are not then listed on a national securities exchange or
          traded in an over-the-counter market, such value as determined by the
          Committee in good faith.

     (p)  "INCENTIVE AWARD" shall mean an Option, Tandem SAR, Stand-Alone SAR,
          Restricted Stock grant, Phantom Stock grant or Stock Bonus granted
          pursuant to the terms of the Plan.

     (q)  "INCENTIVE STOCK OPTION" shall mean an Option that is an "incentive
          stock option" within the meaning of Section 422 of the Code.

     (r)  "ISSUE DATE" shall mean the date established by the Company on which
          certificates representing shares of Restricted Stock shall be issued
          by the Company pursuant to the terms of Section 10(e)of the Plan.

     (s)  "NON-EMPLOYEE DIRECTOR" shall mean a Director who is not also an
          employee of the Company or any Subsidiary of the Company.

     (t)  "NON-QUALIFIED STOCK OPTION" shall mean an Option that is not an
          Incentive Stock Option.

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     (u)  "OPTION" shall mean an option to purchase shares of Common Stock
          granted pursuant to Section 7 of the Plan.

     (v)  "PARTICIPANT" shall mean an employee of the Company or a Subsidiary of
          the Company or any Non-Employee Director to whom an Incentive Award is
          granted pursuant to the Plan, and, upon such individual's death, such
          individual's successors, heirs, executors and administrators, as the
          case may be.

     (w)  "PHANTOM STOCK" shall mean the right, granted pursuant to Section 11
          of the Plan, to receive in cash the Fair Market Value of a share of
          Common Stock.

     (x)  "PLAN" shall mean this 1999 Omnibus Stock Incentive Plan, as amended
          from time to time.

     (y)  "REFERENCE VALUE" shall mean, with respect to Stand-Alone SARs, the
          greater of the Fair Market Value or the value given by the Committee
          on the date of the grant.

     (z)  "RESTRICTED STOCK" shall mean a share of Common Stock which is granted
          pursuant to the terms of Section 10 hereof and which is subject to the
          restrictions set forth in Section 10 of the Plan.

     (aa) "RULE 16b-3" shall mean Rule 16b-3 promulgated under the Exchange Act.

     (ab) "SECURITIES ACT" shall mean the Securities Act of 1933, as amended
          from time to time.

     (ac) "STAND-ALONE SAR" shall mean a stock appreciation right granted
          pursuant to Section 9 of the Plan which is not related to any Option.

     (ad) "STOCK BONUS" shall mean a bonus payable in shares of Common Stock
          granted pursuant to Section 12 of the Plan.

     (ae) "SUBSIDIARY" shall mean a "subsidiary corporation" within the meaning
          of Section 424(f) of the Code.

     (af) "TANDEM SAR" shall mean a stock appreciation right granted pursuant to
          Section 8 of the Plan which is related to an Option.

     (ag) "VESTING DATE" shall mean the date established by the Committee on
          which a share of Restricted Stock or Phantom Stock may vest.

3.   STOCK SUBJECT TO THE PLAN.

     (a)  SHARES AVAILABLE FOR AWARDS.

          The maximum number of shares of Common Stock reserved for issuance
          under the Plan shall be 3,500,000 shares (subject to adjustment as
          provided herein), which shall include 2,500,000 shares authorized but
          unissued under the Predecessor Plan.  The total number of

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          shares reserved for issuance hereunder may be authorized but unissued
          Common Stock or authorized and issued Common Stock held in the
          Company's treasury or acquired by the Company for the purposes of the
          Plan.  The Committee may direct that any stock certificate evidencing
          shares issued pursuant to the Plan shall bear a legend setting forth
          such restrictions on transfer ability as may apply to such shares
          pursuant to the Plan.  The grant of a Tandem SAR shall not reduce the
          number of shares of Common Stock with respect to which Incentive
          Awards may be granted pursuant to the Plan.  Upon the exercise of any
          Tandem SAR, the related Option shall be canceled to the extent of the
          number of shares of Common Stock as to which the Tandem SAR is
          exercised and, notwithstanding the foregoing, such number of shares
          shall no longer be available for Incentive Awards under the Plan.

     (b)  ADJUSTMENT FOR CHANGE IN CAPITALIZATION.

          In the event that the Committee shall determine that any dividend or
          other distribution (whether in the form of cash, Common Stock, or
          other property), recapitalization, stock split, reverse stock split,
          reorganization, merger, consolidation, spin-off, combination,
          repurchase, or share exchange, or other similar corporate transaction
          or event, affects the Common Stock such that an adjustment is
          appropriate in order to prevent dilution or enlargement of the rights
          of Participants under the Plan, then the Committee shall make such
          equitable changes or adjustments as it deems necessary or appropriate
          to any or all of (i) the number and kind of shares of stock which may
          thereafter be issued in connection with Incentive Awards, (ii) the
          number and kind of shares of stock issued or issuable in respect of
          outstanding Incentive Awards, and (iii) the exercise price, grant
          price, or purchase price relating to any Incentive Award; provided
          that, with respect to Incentive Stock Options, such adjustment shall
          be made in accordance with Section 424 of the Code.

     (c)  RE-USE OF SHARES.

          Subject to the last sentence of Section 3(a), the following shares of
          Common Stock shall again become available for Incentive Awards:  any
          shares subject to an Incentive Award that remain unissued upon the
          cancellation, surrender, exchange or termination of such award for any
          reason whatsoever; any shares of Restricted Stock forfeited; and any
          shares in respect of which a Stand-Alone SAR.

4.   ADMINISTRATION OF THE PLAN.

     The Plan shall be administered by the Committee.  The Committee shall have
the authority in its sole discretion, subject to and not inconsistent with the
express provisions of the Plan, to administer the Plan and to exercise all the
powers and authorities either specifically granted to it under the Plan or
necessary or advisable in the administration of the Plan, including, without
limitation, the authority to grant Incentive Awards; to determine the persons to
whom and the time or times at which Incentive Awards shall be granted; to
determine the type and number of Incentive Awards to be granted, the number of
shares of Stock to which an Award may relate and the terms, conditions,
restrictions and performance criteria relating to any Incentive Award; to
determine whether, to what extent, and under what circumstances an Incentive
Award may be settled, canceled, forfeited, exchanged, or surrendered; to make
adjustments in the performance goals in

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recogintion of unusual or non-recurring events affecting the Company or the
financial statements of the Company (to the extent in accordance with Section
162(m)of the Code, if applicable), or in response to changes in applicable
laws, regulations, or accounting principles; to construe and interpret the
Plan and any Incentive Award; to prescribe, amend and rescind rules and
regulations relating to the Plan; to determine the terms and provisions of
Award Agreements; and to make all other determinations deemed necessary or
advisable for the administration of the Plan.

     The Committee may, in its absolute discretion, without amendment to the
Plan, (i) accelerate the date on which any Tandem SAR or Stand-Alone SAR or
Incentive Award relating to Phantom Stock granted under the Plan becomes
exercisable, waive or amend the operation of Plan provisions respecting exercise
after termination of employment or otherwise adjust any of the terms of such
Tandem SAR relating to Non-Qualified Stock Options or Stand-Alone SAR or
Incentive Award relating to Phantom Stock, and (ii) accelerate the Exercise Date
or Issue Date, or waive any condition imposed hereunder, with respect to any
share of Restricted Stock or Phantom Stock or otherwise adjust any of the terms
applicable to such share.

     No member of the Committee shall be liable for any action, omission or
determination relating to the Plan, and the Company shall indemnify and hold
harmless each member of the Committee and each other director or employee of the
Company to whom any duty or power relating to the administration or
interpretation of the Plan has been delegated against any cost or expense
(including counsel fees) or liability (including any sum paid in settlement of a
claim with the approval of the Committee) arising out of any action, omission or
determination relating to the Plan, if, in either case, such action, omission or
determination was taken or made by such member, director or employee in good
faith and in a manner such member, director or employee reasonably believed to
be in or not opposed to the best interests of the Company.

5.   ELIGIBILITY.

     The persons who shall be eligible to receive Incentive Awards pursuant to
the Plan shall be such Participants as the Committee shall select from time to
time. Notwithstanding the foregoing, only individuals who are employees of the
Company or any Subsidiary of the Company as of the date of the grant of any
Incentive Stock Option shall be eligible to receive such Incentive Stock
Options.

6.   AWARDS UNDER THE PLAN; AWARD AGREEMENT.

     The Committee may grant Options, Tandem SARs, Stand-Alone SARs, shares of
Restricted Stock, shares of Phantom Stock and Stock Bonuses, in such amounts and
with such terms and conditions as the Committee shall determine, subject to the
provisions of the Plan.

     Each Incentive Award granted under the Plan (except an unconditional Stock
Bonus) shall be evidenced by an Award Agreement which shall contain such
provisions as the Committee may in its sole discretion deem necessary or
desirable.  By accepting an Incentive Award, a Participant thereby agrees that
the award shall be subject to all of the terms and provisions of the Plan and
the applicable Award Agreement.

7.   OPTIONS.

                                       6
<PAGE>

     (a)  IDENTIFICATION OF OPTIONS.

          Each Option shall be clearly identified in the applicable Award
          Agreement as either an Incentive Stock Option or a Non-Qualified Stock
          Option.

     (b)  EXERCISE PRICE.

          Each Award Agreement with respect to an Option shall set forth the
          amount (the "OPTION EXERCISE PRICE") payable by the grantee to the
          Company upon exercise of the Option.  The Option Exercise Price per
          share shall be determined by the Committee; provided, however, that in
          the case of an Incentive Stock Option, the Option Exercise Price shall
          in no event be less than the Fair Market Value of a share of Common
          Stock on the date the Option is granted.

     (c)  TERM AND EXERCISE OF OPTIONS.

               (1)  The Committee shall determine the vesting schedule and
          expiration date of each Option; provided, however, that no Incentive
          Stock Option shall be exercisable more than 10 years after the date of
          grant.

               (2)  An Option may be exercised for all or any portion of the
          shares as to which it is exercisable, provided, that no partial
          exercise of an Option shall be for an aggregate exercise price of less
          than $1,000.  The partial exercise of an Option shall not cause the
          expiration, termination or cancellation of the remaining portion
          thereof.

               (3)  An Option shall be exercised by delivering notice (in the
          form attached to the Award Agreement, if a form of notice is attached)
          to the Company's principal office, to the attention of its Secretary,
          no less than one business day in advance of the effective date of the
          proposed exercise.  Such notice shall specify the number of shares of
          Common Stock with respect to which the Option is being exercised and
          the effective date of the proposed exercise and shall be signed by the
          Participant or other person then having the right to exercise the
          Option.  Such notice may be withdrawn at any time prior to the close
          of business on the business day immediately preceding the effective
          date of the proposed exercise.  Payment for shares of Common Stock
          purchased upon the exercise of an Option shall be made on the
          effective date of such exercise by one or a combination of the
          following means: (i) in cash, by certified check, bank cashier's check
          or wire transfer; (ii) by delivering a properly executed exercise
          notice to the Company together with a copy of irrevocable instructions
          to a broker to deliver promptly to the Company the amount of sale or
          loan proceeds to pay the full amount of the purchase price, (iii) by
          delivering shares of Common Stock owned by the Participant with
          appropriate stock powers, (iv) by electing to have the Company retain
          shares of Common Stock which would otherwise be issued on the exercise
          of the Option, or (v) any combination of the foregoing forms.  In
          determining the number of shares of Common Stock necessary to be
          delivered to or retained by the Company, such shares shall be valued
          at their Fair Market Value as of the exercise date.

                                       7
<PAGE>

               (4)  Certificates for shares of Common Stock purchased upon the
          exercise of an Option shall be issued in the name of the Participant
          or other person entitled to receive such shares, and delivered to the
          Participant or such other person as soon as practicable following the
          effective date on which the Option is exercised.

     (d)  LIMITATIONS ON INCENTIVE STOCK OPTIONS.

               (1)  To the extent that the aggregate Fair Market Value of shares
          of Common Stock with respect to which Incentive Stock Options are
          exercisable for the first time by a Participant during any calendar
          year under the Plan and any other stock option plan of the Company (or
          any Subsidiary of the Company) shall exceed $100,000, such Options
          shall be treated as Non-Qualified Stock Options.  Such Fair Market
          Value shall be determined as of the date on which each such Incentive
          Stock Option is granted.

               (2)  No Incentive Stock Option may be granted to an individual
          if, at the time of the grant, such individual owns stock possessing
          more than 10 percent of the total combined voting power of all classes
          of stock of the Company unless (i) the exercise price per share of
          such Incentive Stock Option is at least 110 percent of the Fair Market
          Value of a share of Common Stock at the time such Incentive Stock
          Option is granted and (ii) such Incentive Stock Option is not
          exercisable after the expiration of 5 years from the date such
          Incentive Stock Option is granted.

     (e)  EFFECT OF TERMINATION OF EMPLOYMENT

               (1)  Unless the applicable Award Agreement provides otherwise and
          except as provided by Sections 7(g) and 9(d) with respect to a Change
          of Control, in the event that the employment of a Participant with the
          Company or a Subsidiary of the Company shall be terminated by the
          employee or by the Company for Cause (i) Options granted to such
          Participant, to the extent that they are exercisable at the time of
          such termination, shall remain exercisable until the date that is 30
          days after such termination, on which date they shall expire, and (ii)
          Options granted to such Participant, to the extent that they were not
          exercisable at the time of such termination, shall expire at the close
          of business on the date of such termination.  Notwithstanding the
          foregoing, no Option shall be exercisable after the expiration of its
          term.

               (2)  Unless the applicable Award Agreement provides otherwise, in
          the event that the employment of a Participant with the Company or a
          Subsidiary of the Company shall  terminate on account of the
          Disability or death of the Participant (i) Options granted to such
          Participant, to the extent that they were exercisable at the time of
          such termination, shall remain exercisable until the first anniversary
          of such termination, on which date they shall expire, and (ii) Options
          granted to such Participant, to the extent that they were not
          exercisable at the time of such termination, shall expire at the close
          of business on the date of such termination. Notwithstanding the
          foregoing, no Option shall be exercisable after the expiration of its
          term.

                                       8
<PAGE>

               (3)  Unless the applicable Award Agreement provides otherwise and
          except as provided by Sections 7(g) and 9(d), in the event that the
          employment of a Participant with the Company or a Subsidiary of the
          Company shall terminated by the Company in connection with a reduction
          in force or for any other reason other than death, Disability or
          Cause, (i) Options granted to such Participant, to the extent that
          they are exercisable at the time of such termination, shall remain
          exercisable until the date that is 90 days after such termination, on
          which date they shall expire, and (ii) Options granted to such
          Participant, to the extent that they were not exercisable at the time
          of such termination, shall expire at the close of business on the date
          of such termination.  Notwithstanding the foregoing, no Option shall
          be exercisable after the expiration of its term.

     (f)  EFFECT OF REMOVAL FROM BOARD OF DIRECTORS

          Unless the applicable Award Agreement provides otherwise, in the event
          a Director ceases to serve on the Board of Directors, the Committee
          shall determine the effect such termination has with respect to
          Options granted to such Director; PROVIDED, that (i) Options granted
          to such Director, to the extent that they were not exercisable at the
          time of such termination, shall expire at the close of business on the
          date of such termination and (ii) no Option shall be exercisable after
          the expiration of its term.  Notwithstanding the foregoing, Options
          granted to a Director while such Director was also an employee of the
          Company or any Subsidiary of the Company shall be governed by the
          provisions set forth in Section 7(e).

     (g)  ACCELERATION OF EXERCISE DATE UPON CHANGE IN CONTROL.

               (1)  Upon the occurrence of a Change in Control described in
          Section 2(d)(i), (ii), or (iii), if, (A) the Company, any Subsidiary
          of the Company or any entity into which the Company or any Subsidiary
          is merged or consolidated requires such Participant to move more than
          50 miles from such Participant's place of residence within 1 year of
          the Change in Control; or (B) notwithstanding Section 7(e)(1)(ii), the
          employment of the Participant with the Company, any Subsidiary of the
          Company or any entity into which the Company or any Subsidiary is
          merged or consolidated is terminated within 1 year of the Change in
          Control; or (C) the Participant is required to change assignments
          within the Company, any Subsidiary of the Company or any entity into
          which the Company or any Subsidiary is merged or consolidated and is
          given lower responsibilities as a result of such change within 1 year
          of the Change in Control, then each Option granted under the Plan and
          outstanding at such time shall become fully and immediately
          exercisable and shall remain exercisable until the later of (Y) 30
          days following the occurrence of said Change in Control, and (Z) 30
          days following the occurrence of the change described in (A), (B), or
          (C) above.  Notwithstanding the foregoing, no Option shall be
          exercisable after the expiration of its term.

               (2)  Upon the occurrence of a Change in Control to which Section
          7(g)(1) does not apply, each Option granted under the Plan and
          outstanding at such time shall be treated as provided by any written
          plan or agreement approved by the stockholders pursuant to which such
          Change in Control occurs; provided, that if such Change in Control is
          not

                                       9
<PAGE>

          governed by any plan or agreement approved by the stockholders, the
          erms and conditions, including the vesting and expiration, of each
          Option shall not be affected by such Change in Control.

8.   TANDEM SARS.

     The Committee may grant in connection with any Option granted hereunder one
or more Tandem SARs relating to a number of shares of Common Stock less than or
equal to the number of shares of Common Stock subject to the related Option.  A
Tandem SAR may be granted at the same time as, or, in the case of a
Non-Qualified Stock Option, subsequent to the time that, its related Option is
granted.

     (a)  BENEFIT UPON EXERCISE.

          The exercise of a Tandem SAR with respect to any number of shares of
          Common Stock shall entitle the Participant to a cash payment, for each
          such share, equal to the excess of (i) the Fair Market Value of a
          share of Common Stock on the exercise date over (ii) the Option
          Exercise Price per share of the related Option.  Such payment shall be
          made as soon as practicable after the effective date of such exercise.

     (b)  TERM AND EXERCISE OF TANDEM SAR.

               (1)  A Tandem SAR shall be exercisable (i) only if and to the
          extent that its related Option is exercisable and (ii) only if at the
          time of such exercise, the Fair Market Value of a share of Common
          Stock exceeds the Option Exercise Price per share of the related
          Option.

               (2)  The exercise of a Tandem SAR with respect to a number of
          shares of Common Stock shall cause the immediate and automatic
          cancellation of its related Option with respect to an equal number of
          shares.  The exercise of an Option, or the cancellation, termination
          or expiration of an Option (other than pursuant to this Section
          8(b)(2)), with respect to a number of shares of Common Stock shall
          cause the automatic and immediate cancellation of any related Tandem
          SARs to the extent that the number of shares of Common Stock remaining
          subject to such Option is less than the number of shares then subject
          to such Tandem SAR.  Such Tandem SARs shall be canceled in the order
          in which they become exercisable.

               (3)  A Tandem SAR may be exercised for all or any portion of the
          shares as to which the related Option is exercisable; provided, that
          no partial exercise of a Tandem SAR shall be for less than a number of
          shares having an aggregate option exercise price of less than $1,000.
          The partial exercise of a Tandem SAR shall not cause the expiration,
          termination or cancellation of the remaining portion thereof.

               (4)  No Tandem SAR shall be assignable or transferable otherwise
          than together with its related Option, and any such transfer or
          assignment will be subject to the provisions of Section 20 of the
          Plan.

                                       10
<PAGE>

               (5)  A Tandem SAR shall be exercised by delivering notice to the
          Company's principal office, to the attention of its Secretary, no less
          than one business day in advance of the effective date of the proposed
          exercise.  Such notice shall specify the number of shares of Common
          Stock with respect to which the Tandem SAR is being exercised and the
          effective date of the proposed exercise and shall be signed by the
          Participant or other person then having the right to exercise the
          Option to which the Tandem SAR is related.  Such notice may be
          withdrawn at any time prior to the close of business on the business
          day immediately preceding the effective date of the proposed exercise.

9.   STAND-ALONE SARS.

     (a)  BENEFIT UPON EXERCISE.

          The exercise of a Stand-Alone SAR with respect to any number of shares
          of Common Stock shall entitle the Participant to a cash payment, for
          each such share, equal to the excess of (i) the Fair Market Value of a
          share of Common Stock on the exercise date over (ii) the Reference
          Value of the Stand-Alone SAR.  Such payments shall be made as soon as
          practicable after the effective date of such exercise.

     (b)  TERM AND EXERCISE OF STAND-ALONE SARS.

               (1)  Unless the applicable Award Agreement provides otherwise, a
          Stand-Alone SAR shall become cumulatively exercisable as to 25 percent
          of the shares covered thereby on each of the first, second, third and
          fourth anniversaries of the date of grant.   The Committee shall
          determine the expiration date of each Stand-Alone SAR.  Unless the
          applicable Award Agreement provides other wise, no Stand-Alone SAR
          shall be exercisable prior to the date of grant.

               (2)  A Stand-Alone SAR may be exercised for all or any portion of
          the shares as to which it is exercisable; provided, that no partial
          exercise of a Stand-Alone SAR shall be for an aggregate Reference
          Value of less than $1,000.  The partial exercise of a Stand-Alone SAR
          shall not cause the expiration, termination or cancellation of the
          remaining portion thereof.

               (3)  A Stand-Alone SAR shall be exercised by delivering notice to
          the Company's principal office, to the attention of its Secretary, no
          less than one business day in advance of the effective date of the
          proposed exercise.  Such notice shall specify the number of shares of
          Common Stock with respect to which the Stand-Alone SAR is being
          exercised, and the effective date of the proposed exercise, and shall
          be signed by the Participant.  The Participant may withdraw such
          notice at any time prior to the close of business on the business day
          immediately preceding the effective date of the proposed exercise.

                                       11
<PAGE>

     (c)  EFFECT OF TERMINATION OF EMPLOYMENT OR REMOVAL FROM BOARD OF
          DIRECTORS.

          The provisions set forth in Section 7(e) and 7(f) with respect to the
          exercise of Options shall apply as well to the exercise of Stand-Alone
          SARs.

     (d)  ACCELERATION OF EXERCISE DATE UPON CHANGE IN CONTROL.

          The provisions set forth in Section 7(g) with respect to the exercise
          of Options shall apply as well to the exercise of Stand-Alone SARs.

10.  RESTRICTED STOCK.

     (a)  ISSUE DATE AND VESTING DATE.

          At the time of the grant of shares of Restricted Stock, the Committee
          shall establish an Issue Date or Issue Dates and a Vesting Date or
          Vesting Dates with respect to such shares.  The Committee may divide
          such shares into classes and assign a different Issue Date and/or
          Vesting Date for each class.  If the grantee is employed by the
          Company or a Subsidiary of the Company on an Issue Date (which may be
          the date of grant), the specified number of shares of Restricted Stock
          shall be issued in accordance with the provisions of Section 10(e) of
          the Plan.  Provided that all conditions to the vesting of a share of
          Restricted Stock imposed pursuant to Section 10(b) of the plan are
          satisfied, and except as provided in Section 10(g) of the Plan, upon
          the occurrence of the Vesting Date with respect to a share of
          Restricted Stock, such share shall vest and the restrictions of
          Section 10(c) of the Plan shall lapse.

     (b)  CONDITIONS TO VESTING.

          At the time of the grant of shares of Restricted Stock, the Committee
          may impose such restrictions or conditions to the vesting of such
          shares as it, in its absolute discretion, deems appropriate.

     (c)  RESTRICTIONS ON TRANSFER PRIOR TO VESTING.

          Prior to the vesting of a share of Restricted Stock, no transfer of a
          Participant's rights with respect to such share, whether voluntary or
          involuntary, by operation of law or otherwise, shall be permitted.
          Immediately upon any attempt to transfer such rights, such share, and
          all of the rights related thereto, shall be forfeited by the
          Participant.

     (d)  DIVIDENDS ON RESTRICTED STOCK.

          The Committee in its discretion may require that any dividends paid on
          shares of Restricted Stock shall be held in escrow until all
          restrictions on such shares have lapsed.

     (e)  ISSUANCE OF CERTIFICATES.

                                       12
<PAGE>

               (1)  Reasonably promptly after the Issue Date with respect to
          shares of Restricted Stock, the Company shall cause to be issued a
          stock certificate, registered in the name of the Participant to whom
          such shares were granted, evidencing such shares; provided, that the
          Company shall not cause such a stock certificate to be issued unless
          it has received a stock power duly endorsed in blank with respect to
          such shares.  Each such stock certificate shall bear the following
          legend:

               The transferability of this certificate and the
               shares of stock represented hereby are subject to
               the restrictions, terms and conditions (including
               forfeiture provisions and restrictions against
               transfer) contained in the 1999 Omnibus Stock
               Incentive Plan of Sento Corporation (the
               "Company") and an Award Agreement entered into
               between the registered owner of such shares and
               the Company.  A copy of such Plan and Award
               Agreement is on file in the office of the
               Secretary of the Company, 808 East Utah Valley
               Drive, American Fork, Utah 84003.

          Such legend shall not be removed until such shares vest pursuant to
          the terms of the applicable Award Agreement.

               (2)  Each certificate issued pursuant to this Section 10(e),
          together with the stock powers relating to the shares of Restricted
          Stock evidenced by such certificate, shall be held by the Company
          unless the Committee determines otherwise.

     (f)  CONSEQUENCES OF VESTING.

          Upon the vesting of a share of Restricted Stock pursuant to the terms
          of the applicable Award Agreement, the restrictions of Section 10(c)
          of the Plan shall lapse.  Reasonably promptly after a share of
          Restricted Stock vests, the Company shall cause to be delivered to the
          Participant to whom such shares were granted, a certificate evidencing
          such share, free of the legend set forth in Section 10(e) of the Plan.

     (g)  EFFECT OF TERMINATION OF EMPLOYMENT OR REMOVAL FROM BOARD OF
          DIRECTORS.

               (1) Unless the applicable Award Agreement provides otherwise, the
          Committee shall determine, upon the termination of a Participant's
          employment by the Company or any Subsidiary of the Company for any
          reason other than Cause, any and all shares to which restrictions on
          transferability apply shall be immediately forfeited by the
          Participant and transferred to the Company, provided that if the
          Committee, in its sole discretion and within 30 days after such
          termination of employment notifies the Participant in writing of its
          decision not to terminate the Participant's rights in such shares,
          then the Participant shall continue to be the owner of such shares
          subject to such continuing restrictions as the Committee may prescribe
          in such notice.  If shares of Restricted Stock are forfeited in
          accordance with the provision of this Section 10, the Company shall
          also have the right to

                                       13
<PAGE>

          require the return of all dividends paid on such shares, whether by
          termination of any escrow arrangement under which such dividends are
          held or otherwise.

               (2)  In the event of the termination of a Participant's
          employment for Cause, all shares of Restricted Stock granted to such
          Participant which have not vested as of the date of such termination
          shall immediately be returned to the Company, together with any
          dividends paid on such shares.

               (3) Unless the applicable Award Agreement provides otherwise, the
          Committee shall determine the effect the removal of a Director from
          the Board of Directors shall have on such Director's Restricted Stock
          award.  Notwithstanding the foregoing, Restricted Stock awards granted
          to a Director while such Director was also an employee of the Company
          or any Subsidiary of the Company shall be governed by the provisions
          set forth in this Section 10(g)(1) and (2).

     (h)  EFFECT OF CHANGE IN CONTROL.

               (1)  Upon the occurrence of a Change in Control described in
          Section 2(d)(i), (ii), or (iii), if, (A) the Company, any Subsidiary
          of the Company or any entity into which the Company or any Subsidiary
          is merged or consolidated requires such Participant to move more than
          50 miles from such Participant's place of residence within 1 year of
          the Change in Control; or (B) notwithstanding Section 10(g), the
          employment of the Participant with the Company, any Subsidiary of the
          Company or any entity into which the Company or any Subsidiary is
          merged or consolidated is terminated within 1 year of the Change in
          Control; or (C) the Participant is required to change assignments
          within the Company, any Subsidiary of the Company or any entity into
          which the Company or any Subsidiary is merged or consolidated and is
          given lower responsibilities as a result of such change within 1 year
          of the Change in Control, then each share of Restricted Stock granted
          under the Plan and outstanding at such time shall immediately vest and
          all restrictions on such shares shall immediately lapse.

               (2)  Upon the occurrence of a Change in Control to which Section
          10(h)(1) does not apply, each share of Restricted Stock granted under
          the Plan and outstanding at such time shall be treated as provided by
          any written plan or agreement approved by the stockholders pursuant to
          which such Change in Control occurs; provided, that if such Change in
          Control is not governed by any plan or agreement approved by the
          stockholders, the terms and conditions, including the vesting and
          expiration, of each share of Restricted Stock shall not be affected by
          such Change in Control.

     (i)  SPECIAL PROVISIONS REGARDING RESTRICTED STOCK AWARDS.

          Notwithstanding anything to the contrary contained herein, Restricted
          Stock granted pursuant to this Section 10 shall be based on the
          attainment by the Company (or a Subsidiary or division of the Company
          if applicable) of performance goals pre-established by the Committee,
          based on one or more of the following criteria: (i) the attainment of
          a specified percentage return on total stockholder equity of the
          Company or any Subsidiary

                                       14
<PAGE>

          of the Company; (ii) the attainment of a specified percentage
          increase in earnings per share of Common Stock; (iii) the attainment
          of a specified percentage increase in net income of the Company or
          any Subsidiary of the Company; and (iv) the attainment of a specified
          percentage increase in profit before taxation of the Company or any
          Subsidiary of the Company.  Attainment of any such performance
          criteria shall be determined in accordance with generally accepted
          accounting principles as in effect from time to time.  Such shares of
          Restricted Stock shall be released from restrictions only after the
          attainment of such performance measures have been certified by the
          Committee.

11.  PHANTOM STOCK.

     (a)  VESTING DATE.

          At the time of the grant of shares of Phantom Stock, the Committee
          shall establish a Vesting Date or Vesting Dates with respect to such
          shares.  The Committee may divide such shares into classes and assign
          a different Vesting Date for each class.  Provided that all conditions
          to the vesting of a share of Phantom Stock imposed pursuant to Section
          11(c) of the Plan are satisfied, and except as provided in Section
          11(d) of the Plan, upon the occurrence of the Vesting Date with
          respect to a share of Phantom Stock, such share shall vest.

     (b)  BENEFIT UPON VESTING.

          Upon the vesting of a share of Phantom Stock, the Participant shall be
          entitled to receive in cash, within 30 days of the date on which such
          share vests, an amount equal to the sum of (i) the Fair Market Value
          of a share of Common Stock on the date on which such share of Phantom
          Stock vests and (ii) the aggregate amount of cash dividends paid with
          respect to a share of Common Stock during the period commencing on the
          date on which the share of Phantom Stock was granted and terminating
          on the date on which such share vests.

     (c)  CONDITIONS TO VESTING.

          At the time of the grant of shares of Phantom Stock, the Committee may
          impose such restrictions or conditions to the vesting of such shares
          as it, in its absolute discretion, deems appropriate.

     (d)  EFFECT OF TERMINATION OF EMPLOYMENT OR REMOVAL FROM BOARD OF
          DIRECTORS.

               (1) Unless the applicable Award Agreement provides otherwise,
          shares of Phantom Stock that have not vested, together with any
          dividends credited on such shares, shall be forfeited upon the
          Participant's termination of employment for any reason.

               (2) Unless the applicable Award Agreement provides otherwise, the
          Committee shall determine the effect the removal of a Director from
          the Board of Directors shall have on such Director's Phantom Stock
          award.  Notwithstanding the foregoing, Phantom Stock awards granted to
          a Director while such Director was also an employee of the Company or

                                       15
<PAGE>

          any Subsidiary of the Company shall be governed by the provisions set
          forth in this Section 11(d)(1).

     (e)  EFFECT OF CHANGE IN CONTROL.

               (1)  Upon the occurrence of a Change in Control described in
          Section 2(d)(i), (ii), or (iii), if, (A) the Company, any Subsidiary
          of the Company or any entity into which the Company or any Subsidiary
          is merged or consolidated requires such Participant to move more than
          50 miles from such Participant's place of residence within 1 year of
          the Change in Control; or (B) notwithstanding Section 11(d), the
          employment of the Participant with the Company, any Subsidiary of the
          Company or any entity into which the Company or any Subsidiary is
          merged or consolidated is terminated within 1 year of the Change in
          Control; or (C) the Participant is required to change assignments
          within the Company, any Subsidiary of the Company or any entity into
          which the Company or any Subsidiary is merged or consolidated and is
          given lower responsibilities as a result of such change within 1 year
          of the Change in Control, then each share of Phantom Stock granted
          under the Plan and outstanding at such time shall immediately vest.

               (2)  Upon the occurrence of a Change in Control to which Section
          11(e)(1) does not apply, each share of Phantom Stock granted under the
          Plan and outstanding at such time shall be treated as provided by any
          written plan or agreement approved by the stockholders pursuant to
          which such Change in Control occurs; provided, that if such Change in
          Control is not governed by any plan or agreement approved by the
          stockholders, the terms and conditions, including the vesting and
          expiration, of each share of Phantom Stock shall not be affected by
          such Change in Control.

     (f)  SPECIAL PROVISIONS REGARDING PHANTOM STOCK AWARDS.

          Notwithstanding anything to the contrary contained herein, Phantom
          Stock granted pursuant to this Section 11 to officers of the Company
          or any Subsidiary of the Company shall be based on the attainment by
          the Company or any Subsidiary of the Company of performance goals
          pre-established by the Committee, based on one or more of the
          following criteria: (i) the attainment of a specified percentage
          return on total stockholder equity of the Company or any Subsidiary of
          the Company; (ii) the attainment of a specified percentage increase in
          earnings per share of Common Stock from continuing operations; (iii)
          the attainment of a specified percentage increase in net income of the
          Company or any Subsidiary of the Company; and (iv) the attainment of a
          specified percentage increase in profit before taxation of the Company
          or any Subsidiary of the Company.  Attainment of any such performance
          criteria shall be determined in accordance with generally accepted
          accounting principles as in effect from time to time.  No cash payment
          in respect of any Phantom Stock award will be paid to any such officer
          until the attainment of the respective performance measures have been
          certified by the Committee.

12.  STOCK BONUSES.

                                       16
<PAGE>

     In the event that the Committee grants a Stock Bonus, a certificate for the
shares of Common Stock comprising such Stock Bonus shall be issued in the name
of the Participant to whom such grant was made and delivered to such Participant
as soon as practicable after the date on which such Stock Bonus is payable.

13.  RIGHTS AS A STOCKHOLDER.

     No person shall have any rights as a stockholder with respect to any shares
of Common Stock covered by or relating to any Incentive Award until the date of
issuance of a stock certificate with respect to such shares.  Except as
otherwise expressly provided in Section 3(b) of the Plan, no adjustment to any
Incentive Award shall be made for dividends or other rights for which the record
date occurs prior to the date such stock certificate is issued.

14.  NO SPECIAL EMPLOYMENT RIGHTS; NO RIGHT TO INCENTIVE AWARD.

     Nothing contained in the Plan or any Award Agreement shall confer upon any
Participant any right with respect to the continuation of employment by the
Company or any Subsidiary of the Company or interfere in any way with the right
of the Company or any Subsidiary of the Company, subject to the terms of any
separate employment agreement to the contrary, at any time to terminate such
employment or to increase or decrease the compensation of the Participant.  No
person shall have any claim or right to receive an Incentive Award hereunder.
The Committee's granting of an Incentive Award to a Participant at any time
shall neither require the Committee to grant any other Incentive Award to such
Participant or other person at any time or preclude the Committee from making
subsequent grants to such Participant or any other person.

15.  SECURITIES MATTERS.

     (a)  The Company shall be under no obligation to effect the registration
          pursuant to the Securities Act of any interests in the Plan or any
          shares of Common Stock to be issued hereunder or to effect similar
          compliance under any state laws.  Notwithstanding anything herein to
          the contrary, the Company shall not be obligated to cause to be issued
          or delivered any certificates evidencing shares of Common Stock
          pursuant to the Plan unless and until the Company is advised by its
          counsel that the issuance and delivery of such certificates is in
          compliance with all applicable laws, regulations of governmental
          authority and the requirements of any securities exchange on which
          shares of Common Stock are traded.  The Committee may require, as a
          condition of the issuance and delivery of certificates evidencing
          shares of Common Stock pursuant to the terms hereof and of the
          applicable Award Agreement, that the recipient of such shares make
          such covenants, agreements and representations, and that such
          certificates bear such legends, as the Committee, in its sole
          discretion, deems necessary or desirable.

     (b)  The transfer of any shares of Common Stock hereunder shall be
          effective only at such time as counsel to the Company shall have
          determined that the issuance and delivery of such shares is in
          compliance with all applicable laws, regulations of governmental
          authority and the requirements of any securities exchange on which
          shares of Common Stock are traded. The Committee may, in its sole
          discretion, defer the effectiveness of any transfer of shares of
          Common Stock hereunder in order to allow the issuance of such shares
          to be made

                                       17
<PAGE>

          pursuant to registration or an exemption from registration or other
          methods for compliance available under federal or state securities
          laws.  The Committee shall inform the Participant in writing of its
          decision to defer the effectiveness of a transfer. During the period
          of such deferral in connection with the exercise of an Option, the
          Participant may, by written notice, withdraw such exercise and obtain
          the refund of any amount paid with respect thereto.

16.  WITHHOLDING TAXES.

     Whenever cash is to be paid pursuant to an Incentive Award, the Company
shall have the right to deduct therefrom an amount sufficient to satisfy any
federal, state and local withholding tax requirements related thereto.  Whenever
shares of Common Stock are to be delivered pursuant to an Incentive Award, the
Company shall have the right to require the Participant to remit to the Company
in cash an amount sufficient to satisfy any federal, state and local withholding
tax requirements related thereto.  With the approval of the Committee, a
Participant may satisfy the foregoing requirement by electing to have the
Company withhold from delivery shares of Common Stock having a fair market value
equal to the amount of tax to be withheld.  Such shares shall be valued at their
Fair Market Value on the date on which the amount of tax to be withheld is
determined (the "TAX DATE").  Fractional share amounts shall be settled in cash.
Such a withholding election may be made with respect to all or any portion of
the shares to be delivered pursuant to an Incentive Award.

17.  NOTIFICATION OF ELECTION UNDER SECTION 83(B) OF THE CODE.

     If any Participant shall, in connection with the acquisition of shares of
Common Stock under the Plan, make the election permitted under Section 83(b) of
the Code (i.e., an election to include in gross income in the year of transfer
the amounts specified in Section 83(b)), such Participant shall notify the
Company in writing of such election within 10 days of filing notice of the
election with the Internal Revenue Service, in addition to any filing and a
notification required pursuant to regulation issued under the authority of Code
Section 83(b).

18.  NOTIFICATION UPON DISQUALIFYING DISPOSITION UNDER SECTION 421(B) OF THE
     CODE.

     Each Award Agreement with respect to an Incentive Stock Option shall
require the Participant to notify the Company in writing of any disposition of
shares of Common Stock issued pursuant to the exercise of such Option under the
circumstances described in Section 421(b) of the Code (relating to certain
disqualifying dispositions), within 10 days of such disposition.

19.  AMENDMENT OR TERMINATION OF THE PLAN.

     The Board of Directors may, at any time, suspend or terminate the Plan or
revise or amend it in any respect whatsoever; provided, however, that
stockholder approval shall be required if and to the extent the Board of
Directors determines that such approval is appropriate for purposes of
satisfying Section 162(m) or 422 of the Code or to the extent such approval is
required by the rules of any stock exchange on which the Common Stock is listed.
Nothing herein shall restrict the Committee's ability to exercise its
discretionary authority pursuant to Section 4 of the Plan, which discretion may
be exercised without amendment to the

                                       18
<PAGE>

Plan.  No action hereunder may, without the consent of a Participant, reduce
the Participant's rights under any outstanding Incentive Award.

20.  TRANSFERS UPON DEATH; NONASSIGNABILITY.

     Upon the death of a Participant, outstanding Incentive Awards granted to
such Participant may be exercised only by the executor or administrator of the
Participant's estate or by a person who shall have acquired the right to such
exercise by will or by the laws of descent and distribution.  No transfer of an
Incentive Award by will or the laws of descent and distribution shall be
effective to bind the Company unless the Committee shall have been furnished
with (a) written notice thereof and with a copy of the will and/or such evidence
as the Committee may deem necessary to establish the validity of the transfer
and (b) an agreement by the transferee to comply with all the terms and
conditions of the Incentive Award that are or would have been applicable to the
Participant and to be bound by the acknowledgments made by the Participant in
connection with the grant of the Incentive Award.

     During a Participant's lifetime, the Committee may permit the transfer,
assignment or other encumbrance of an outstanding Option or outstanding shares
of Restricted Stock unless such Option is an Incentive Stock Option and the
Committee and the Participant intend that it shall retain such status.
Notwithstanding the foregoing, subject to any conditions as the Committee may
prescribe, a Participant may, upon providing written notice to the secretary of
the Company, elect to transfer any or all Options granted to such Participant
pursuant to the Plan to members of his or her immediate family, including, but
not limited to, children, grandchildren and spouse or to trusts for the benefit
of such immediate family members or to partnerships in which such family members
are the only partners; provided, however, that no such transfer by any
Participant may be made in exchange for consideration.

21.  EXPENSES AND RECEIPTS.

     The expenses of the Plan shall be paid by the Company.  Any proceeds
received by the Company in connection with any Incentive Award will be used for
general corporate purposes.

22.  FAILURE TO COMPLY.

     In addition to the remedies of the Company elsewhere provided for herein,
failure by a Participant (or beneficiary or transferee) to comply with any of
the terms and conditions of the Plan or the applicable Award Agreement, unless
such failure is remedied by such Participant (or beneficiary or transferee)
within ten days after notice of such failure by the Committee, shall be grounds
for the cancellation and forfeiture of such Incentive Award, in whole or in
part, as the Committee, in its absolute discretion, may determine.

23.  EFFECTIVE DATE AND TERM OF PLAN.

     The Plan became effective on the Effective Date, but the Plan (and any
grants of Incentive Awards made prior to stockholder approval of the Plan) shall
be subject to the requisite approval of the stockholders of the Company.  In the
absence of such approval, such Incentive Awards shall be null and void.  Unless
earlier terminated by the Board of Directors, the right to grant Incentive
Awards under the Plan will terminate on the tenth anniversary of the Effective
Date.  Incentive Awards outstanding at Plan termination will remain in effect
according to their terms and the provisions of the Plan.

                                       19
<PAGE>

24.  APPLICABLE LAW.

     Except to the extent preempted by any applicable federal law, the Plan will
be construed and administered in accordance with the laws of the State of Utah,
without reference to the principles of conflicts of law.

25.  PARTICIPANT RIGHTS.

     No Participant shall have any claim to be granted any Incentive Award under
the Plan, and there is no obligation for uniformity of treatment for
Participants.  Except as provided specifically herein, a Participant or a
transferee of an Incentive Award shall have no rights as a stockholder with
respect to any shares covered by any award until the date of the issuance of a
Common Stock certificate to him for such shares.

26.  UNFUNDED STATUS OF AWARDS.

     The Plan is intended to constitute an "unfunded" plan for incentive and
deferred compensation.  With respect to any payments not yet made to a
Participant pursuant to an Incentive Award, nothing contained in the Plan or any
Award Agreement shall give any such Participant any rights that are greater than
those of a general creditor of the Company.

27.  NO FRACTIONAL SHARES.

     No fractional shares of Common Stock shall be issued or delivered pursuant
to the Plan.  The Committee shall determine whether cash, other Incentive
Awards, or other property shall be issued or paid in lieu of such fractional
shares or whether such fractional shares or any rights thereto shall be
forfeited or otherwise eliminated.

28.  BENEFICIARY.

     A Participant may file with the Committee a written designation of a
beneficiary on such form as may be prescribed by the Committee and may, from
time to time, amend or revoke such designation.  If no designated beneficiary
survives the Participant, the executor or administrator of the Participant's
estate shall be deemed to be the Participant's beneficiary.

29.  INTERPRETATION.

     The Plan is designed and intended to comply with Rule 16b-3 promulgated
under the Exchange Act and, with Section 162(m) and 422 of the Code, and all
provisions hereof shall be construed in a manner to so comply.

                                       20<PAGE>

                             ___________________________

                                  SENTO CORPORATION
                             ___________________________

                                         1996

                             EMPLOYEE STOCK PURCHASE PLAN
                                (AMENDED AND RESTATED)

ARTICLE 1.  THE PLAN

     Sento Corporation, a Utah corporation (the "Company"), hereby amends and
restates its Sento Corporation 1996 Employee Stock Purchase Plan (Amended and
Restated) (the "Plan"), to provide a method whereby employees of the Company and
certain of its subsidiaries will have an opportunity to acquire a proprietary
interest in the Company through the purchase of shares of the $0.25 par value
Common Stock of the Company (the "Common Stock").  The Plan is intended to
qualify as an "employee stock purchase plan" under section 423 of the Internal
Revenue Code of 1986, as amended (the "Code").  The provisions of the Plan shall
be construed so as to meet all of the requirements of such a plan under Code
section 423.

ARTICLE 2.  DEFINITIONS

     2.1  BASE PAY.  "Base Pay" shall mean salary, wages or other regular rate
of pay before reduction for contributions to plans maintained under Code section
401(k) and 125 (such as profit-sharing and cafeteria plans), but excluding
overtime, bonuses, and other extraordinary forms of compensation, provided that
in no event shall Base Pay exceed $125,000 per year.
     2.2  CODE.  "Code" means the Internal Revenue Code of 1986, as amended.

     2.3  COMMITTEE.  "Committee" shall mean the committee described in Article
11.

     2.4  COMMON STOCK.  "Common Stock" means the $0.25 par value Common Stock
of the Company.

     2.5  COMPANY.  "Company" means Sento Corporation, a Utah corporation.

<PAGE>

     2.6  ELIGIBLE EMPLOYEE.  "Eligible Employee" shall have the meaning set
forth in Section 3.1.

     2.7  EMPLOYEE.  "Employee" shall mean any common-law employee of the
Company.

     2.8  FAIR MARKET VALUE.  "Fair Market Value" with respect to a share of
Common Stock shall mean the average of the high and low bid prices as quoted on
the Pink Sheets, the OTC Bulletin Board, or similar service, on the applicable
date (or the nearest prior business day on which such quotes are available if no
quotes are available on the applicable date), or if the Company's Common Stock
is listed on an exchange or automated quotation system, the "Fair Market Value"
shall be the closing sales price as reported on such exchange or automated
quotation system on the applicable date (or the nearest prior business day on
which shares of Common Stock traded if no shares of Common Stock traded on the
applicable date).

     2.9  OFFERING.  "Offering" shall have the meaning set forth in Section 4.1.

     2.10 OFFERING COMMENCEMENT DATE.  "Offering Commencement Date" means the
date on which the particular Offering begins as set forth in Section 4.1.

     2.11 OFFERING TERMINATION DATE.  "Offering Termination Date" means the date
on which the particular Offering terminates as set forth in Section 4.1.

     2.12 OPTIONS.  "Option" or "Options" mean the options that are deemed to be
granted to Eligible Employees pursuant to Section 5.1.

     2.13 PLAN.  "Plan" means the Sento Corporation 1996 Employee Stock Purchase
Plan (Amended and Restated).

     2.14 SUBSIDIARY.  "Subsidiary" shall mean any present or future corporation
which would be a "subsidiary corporation" with respect to the Company as that
term is defined in Code section 424.  A Subsidiary's employees shall participate
in the Plan, however, only if the Subsidiary is designated as a participating
Subsidiary by the Committee.  References in the Plan to employment by, or
periods of employment with, the Company include employment by or with all such
participating Subsidiaries, including during periods of employment prior to such
participation.

ARTICLE 3.  ELIGIBILITY AND PARTICIPATION

     3.1  INITIAL ELIGIBILITY.  Any Employee who has completed 90 days'
employment by the Company and shall be employed by the Company on the applicable
Offering

                                       2

<PAGE>

Commencement Date (an "Eligible Employee") shall be eligible to
participate in such Offering.  Whether or not an Employee participates in any
Offering will not have any effect on eligibility in subsequent Offerings.

     3.2  RESTRICTIONS ON PARTICIPATION.  Notwithstanding any other Plan
provision to the contrary, no Employee shall be granted an Option to purchase
Common Stock under the Plan:

          (a)  if, immediately after the grant, such Employee would own stock,
and/or hold outstanding options to purchase stock, possessing 5% or more of the
total combined voting power or value of all classes of stock of the Company or
of any Subsidiary (for purposes of this paragraph, the rules of section 424(d)
of the Code shall apply in determining stock ownership of any employee); or

          (b)  which permits the Employee's rights to purchase stock under all
employee stock purchase plans of the Company or any of its Subsidiaries to
accrue at a rate which exceeds $25,000 in fair market value of the stock
(determined at the time such option is granted) for each calendar year in which
such option is at any time outstanding.

ARTICLE 4.  OFFERINGS

     4.1  OFFERINGS.  The Plan will be implemented by semi-annual offerings of
Common Stock.  In each year until the termination of the Plan on September 30,
2009, an offering shall commence on April 1st and end on September 30th, and a
second offering shall commence on October 1st and end on the following March
31st.  Each such six-month offering is referred to in the Plan as an "Offering."
As long as the number of shares issued under the Plan does not exceed the
Maximum Number (defined in Section 10.1), there shall be no maximum number of
shares issuable in each respective Offering.

ARTICLE 5.  GRANTING OF OPTIONS

     5.1  NUMBER OF OPTION SHARES.

          (a)  On the applicable Offering Commencement Date, each Eligible
Employee who has filed with the Company an Authorization described in Section
6.1 shall be deemed to have been granted an Option to purchase a maximum number
of shares of Common Stock equal to an amount determined as follows:  an amount
equal to (i) 15% multiplied by (ii) the Eligible Employee's projected Base Pay
for the applicable Offering Period, and (iii) divided by 85% of the Fair Market
Value of the Common Stock on the applicable Offering Commencement Date.  Such
Option shall only be exercisable on the Offering Termination Date.

                                       3

<PAGE>

          (b)  An Eligible Employee's projected Base Pay for an Offering Period
shall be determined by multiplying his or her normal bi-weekly rate of Base Pay
(as in effect on the last day prior to the Commencement Date of the Offering) by
26 or the hourly rate by 1,040; provided that, in the case of a part-time hourly
employee, the Eligible Employee's projected Base Pay during the Offering Period
shall be determined by multiplying such Eligible Employee's hourly rate by the
number of regularly scheduled hours of work for such Eligible Employee during
such Offering. Notwithstanding anything to the contrary in this Plan, Base Pay
shall in no event exceed $125,000 per year.

     5.2  OPTION PRICE.  The exercise price of the Options shall be the lower
of:

          (a)  85% of the Fair Market Value of Common Stock on the applicable
Offering Commencement Date; or

          (b)  85% of the Fair Market Value of Common Stock on the applicable
Offering Termination Date.

ARTICLE 6.  PAYROLL DEDUCTIONS

     6.1  AMOUNT OF DEDUCTION.  In order to participate in any Offering, an
Eligible Employee must file, before the applicable Offering Commencement Date,
an authorization in the form attached hereto as EXHIBIT A, (a) electing to
participate in the respective Offering, (b) designating the amount (on a
percentage basis) of the Employee's Base Pay the Employee desires to have
deducted and applied toward to exercise price of the Option granted to the
Employee under Section 5.1, and (c) authorizing the Company to deduct the
designated amount (on a percentage basis) of the Employee's Base Pay and apply
it toward the exercise price of the Option granted to the Employee under Section
5.1 (an "Authorization").  Such deductions shall be made from an Employee's pay
on each payday during the time the Employee is a participant in an Offering at
the rate designated by the Employee but not more than 15% of the Employee's Base
Pay.

     6.2  EMPLOYEE'S ACCOUNT.  All payroll deductions made for an Employee shall
be credited to an account for the Employee under the Plan.  An Employee may not
make separate cash payments into such account.

     6.3  CHANGES IN PAYROLL DEDUCTIONS.  An Employee may discontinue his or her
payroll deductions during an Offering as provided in Article 8, but no other
changes can be made during an Offering and, specifically, an Employee may not
alter the amount of payroll deductions for that Offering.

     6.4  WITHDRAWAL OF ACCOUNT.  By written notice to the Human Resources
Department of the Company, at any time prior to the Offering Termination Date
applicable to any Offering, an Employee who has elected to pay the exercise
price of the Option through

                                       4

<PAGE>

payroll deduction may elect to terminate his or her
participation in the current Offering and  withdraw all the accumulated payroll
deductions credited to his or her account at such time.

ARTICLE 7.  EXERCISE OF OPTION

     7.1  EXERCISE.  An Employee's Option to purchase Common Stock will be
deemed to have been exercised automatically on the Offering Termination Date
applicable to such Offering unless the Employee gives written notice to the
Company to withdraw such payroll deductions as hereinafter provided.  The Option
will be deemed to have been exercised for the purchase of the number of full
shares of Common Stock which the accumulated payroll deductions in his or her
account at that time will purchase at the applicable exercise price (but not in
excess of the number of shares for which Options have been granted to the
Employee pursuant to Section 5.1), and any excess in his or her account at that
time will be returned to the Employee.

     7.2  FRACTIONAL SHARES.  Fractional shares will not be issued under the
Plan and the Company, at the sole election of the Committee, may elect either
(i) to return any accumulated payroll deductions, contributions or payments
which would have been used to purchase fractional shares to the Employees, or
(ii) to issue the next largest whole number of shares of Common Stock.

     7.3  TRANSFERABILITY OF OPTION.  During an Employee's lifetime, Options
held by such Employee shall be exercisable only by that Employee.

     7.4  DELIVERY OF STOCK.  As promptly as practicable after the Offering
Termination Date of each Offering, the Company shall, subject to the
restrictions described in Section 10.4, at the election of each Employee who has
exercised an Option, (i) cause the Company's transfer agent to electronically
transfer, in such Employee's name, the shares of Common Stock purchased upon
exercise of such Employee's Option to a broker designated by the Company to
facilitate prompt sale of such securities, or (ii) cause the Company's transfer
agent to deliver to such Employee the shares of Common Stock purchased upon
exercise of such Employee's Option.

ARTICLE 8.  WITHDRAWAL

     8.1  IN GENERAL.  As indicated in Section 6.4, an Employee may withdraw
payroll deductions credited to his or her account under the Plan at any time by
giving written notice to the Human Resources Department of the Company.  All of
the Employee's payroll deductions credited to his or her account will be paid to
him or her promptly after receipt of his or her notice of withdrawal, and no
further payroll deductions will be made from his or her pay during such
Offering.  The Company may, at its option, treat any attempt to borrow

                                       5

<PAGE>

by an Employee on the security of his or her accumulated payroll deductions as
an election, under Section 6.4, to withdraw such deductions.

     8.2  NON-EXERCISE OF OPTIONS.  An Employee shall have no obligation to
exercise an Option.  If an Eligible Employee has withdrawn his or her payroll
deductions prior to the Offering Termination Date, then the Eligible Employee
shall be deemed to have elected not to exercise such Option, and the Option
granted to such Eligible Employee for such Offering shall terminate and the
Eligible Employee shall have no further rights with respect to such Option.  If
the amount of payroll deductions credited to an Employee's account are
insufficient to purchase the maximum number of shares issuable upon exercise of
the Option, the Option will be deemed to have been exercised only for such
number of shares as can be purchased with the payroll deductions credited to the
Employee's account, and all other rights to purchase the remaining shares
issuable pursuant to the Option shall terminate.

     8.3  EFFECT ON SUBSEQUENT PARTICIPATION.  An Employee's withdrawal of
payroll deductions (which will be deemed to be an election not to exercise the
Option granting during the applicable Offering) will not have any effect upon
his or her eligibility to participate in any succeeding Offering or in any
similar plan which may hereafter be adopted by the Company.

     8.4  TERMINATION OF EMPLOYMENT.  Upon termination of an Eligible Employee's
employment for any reason including retirement and death, the Option granted to
such Employee shall immediately terminate in its entirety, and the payroll
deductions or other contributions credited to the Employee's account will be
returned to the Employee, or, in the case of the death of the Employee, to the
person or persons entitled thereto under Section 12.1.  An Employee's employment
shall not be considered terminated in the case of a leave of absence agreed to
in writing by the Company, provided that such leave of absence is for a period
of not more than 90 days or reemployment upon the expiration of such leave is
guaranteed by contract or statute.

ARTICLE 9.  INTEREST

     9.1  PAYMENT OF INTEREST.  No interest will be paid or allowed on any money
credited to the account of any Employee.

ARTICLE 10.  STOCK

     10.1 MAXIMUM SHARES.  The maximum number of shares which may be issued in
all Offerings under the Plan, subject to adjustment upon changes in
capitalization of the Company as provided in Section 12.4, shall be 200,000
shares of Common Stock (the "Maximum Number").  If the total number of shares
for which Options are to be granted on

                                       6

<PAGE>

any Offering Commencement Date in accordance with Article 5 exceeds the
maximum number of shares for the applicable Offering, the Company shall make
a pro-rata allocation of the shares available for issuance in as nearly a
uniform manner as shall be practicable and as it shall determine to be
equitable.

     10.2 EMPLOYEE'S INTEREST IN OPTION STOCK.  An Employee will have no
interest in stock covered by Options until such Options have been exercised.

     10.3 REGISTRATION OF STOCK.  Common Stock to be delivered to an Employee
under the Plan will be registered in the name of the Employee, or, if the
Employee so directs by written notice to the Human Resources Department of
the Company prior to the Offering Termination Date applicable thereto, in the
names of the Employee and one such other person as may be designated by the
Employee, as joint tenants with rights of survivorship.

     10.4 RESTRICTIONS ON EXERCISE.  The Board of Directors may, in its
discretion, require as conditions to the exercise of any Option that the
shares of Common Stock reserved for issuance upon the exercise of the Option
shall have been duly listed, upon official notice of issuance, upon a stock
exchange or automated quotation system, if applicable, and that either:

          (a)  a Registration Statement under the Securities Act of 1933, as
amended, with respect to said shares shall be effective, or

          (b)  the Employee shall have represented at the time of purchase, in
form and substance satisfactory to the Company, that it is his or her intention
to purchase the shares for investment and not for resale or distribution.

ARTICLE 11.  ADMINISTRATION

     11.1 APPOINTMENT OF COMMITTEE.  The Board of Directors shall appoint a
committee (the "Committee") to administer the Plan; provided that during any
period of time a Committee has not been appointed by the Board of Directors, the
Board of Directors shall be deemed to be the Committee.

     11.2 AUTHORITY OF COMMITTEE.  Subject to the express provisions of the
Plan, the Committee shall have plenary authority in its discretion to interpret
and construe any and all provisions of the Plan, to adopt rules and regulations
for administering the Plan, to appoint custodians, accountants and other
advisors, and to make all other determinations deemed necessary or advisable for
administrating the Plan.  The Committee's determination on the foregoing matters
shall be conclusive.

     11.3 RULES GOVERNING THE ADMINISTRATION OF THE COMMITTEE.  The Board of
Directors may from time to time appoint members of the Committee in substitution
for or in addition to members previously appointed and may fill vacancies,
however caused, in the Committee.

                                       7

<PAGE>

The Committee may select one of its members as its Chairman and shall hold
its meetings at such times and places as it shall deem advisable and may hold
telephonic meetings.  A majority of its members shall constitute a quorum.
All determinations of the Committee shall be made by a majority of its
members.  The Committee may correct any defect or omission or reconcile any
inconsistency in the Plan, in the manner and to the extent it shall deem
desirable.  Any decision or determination reduced to writing and signed by a
majority of the members of the Committee shall be as fully effective as if it
had been made by a majority vote at a meeting duly called and held. The
Committee may appoint a secretary and shall make such rules and regulations
for the conduct of its business as it shall deem advisable.

ARTICLE 12. MISCELLANEOUS

     12.1 DESIGNATION OF BENEFICIARY.  An Employee may file with the Human
Resources Department of the Company, a written designation of a beneficiary who
is to receive any cash under the Plan upon the Employee's death.  Such
beneficiary designation may be changed by the Employee at any time by written
notice to the Human Resources Department of the Company.  Upon the death of an
Employee and upon receipt by the Company of proof of the identity and existence
at the Employee's death of a beneficiary validly designated by him or her under
the Plan, the Company shall deliver such cash to such beneficiary as may have
been deducted from the Employee's pay under the Plan which has not been used to
acquire shares of Common Stock under the Plan.  Upon the death of an Employee
and in the absence of a validly designated surviving beneficiary, the Company
shall deliver such cash to the executor or administrator of the deceased
Employee's estate, or if no such executor or administrator has been appointed
(to the knowledge of the Company), the Company, in its discretion, may deliver
such cash to the spouse or to any one or more dependents of the deceased
Employee as the Company may designate.  No beneficiary shall, prior to the death
of the Employee by whom he or she has been designated, acquire any interest in
the cash credited to the Employee's account under the Plan.

     12.2 TRANSFERABILITY.  Neither payroll deductions credited to an Employee's
account nor any rights with regard to the exercise of an Option or to receive
stock under the Plan may be assigned, transferred, pledged, or otherwise
disposed of in any way by the Employee other than by will or the laws of descent
and distribution.  Any such attempted 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 6.4.

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

                                       8

<PAGE>

     12.4 ADJUSTMENT UPON CHANGES IN CAPITALIZATION.

          (a)  If, while any Options are outstanding, the outstanding shares of
Common Stock are increased, decreased, changed into, or exchanged for a
different number or kind of shares or securities of the Company through
reorganization, merger, recapitalization, reclassification, stock split, reverse
stock split or similar transaction, appropriate and proportionate adjustments
may be made by the Committee in the number and/or kind of shares which are
subject to purchase under outstanding Options and in the Option exercise price
or prices applicable to such outstanding Options.  In addition, in any such
event, the Maximum Number of shares subject to the Plan shall be proportionately
adjusted.  No adjustments shall be made, however, for stock dividends.  For
purposes of this paragraph (a), any distribution of shares to shareholders in an
amount aggregating 20% or more of the outstanding shares shall be deemed a stock
split and any distributions of shares aggregating less than 20% of the
outstanding shares shall be deemed a stock dividend.

          (b)  Upon the dissolution or liquidation of the Company, or upon a
reorganization, merger or consolidation of the Company with one or more
corporations as a result of which the Company is not the surviving corporation,
or upon a sale of substantially all of the property or stock of the Company to
another corporation, the holder of each Option then outstanding under the Plan
will thereafter be entitled to receive at the next Offering Termination Date
upon the exercise of such Option for each share as to which such Option shall be
exercised, as nearly as reasonably may be determined, the cash, securities
and/or property which a holder of one share of the Common Stock was entitled to
receive upon and at the time of such transaction.  The Board of Directors shall
take such steps in connection with such transactions as the Board shall deem
necessary to assure that the provisions of this Section 12.4 shall thereafter be
applicable, as nearly as reasonably may be determined, in relation to the said
cash, securities and/or property as to which such holder of such Option might
thereafter be entitled to receive.

     12.5 AMENDMENT AND TERMINATION.  The Board of Directors shall have complete
power and authority to terminate or amend the Plan; provided, however, that the
Board of Directors shall not, without the approval of the stockholders of the
Corporation (a) increase the maximum number of shares which may be issued under
any Offering (except pursuant to Section 12.4); or (b) amend the requirements as
to the class of employees eligible to purchase stock under the Plan or permit
the members of the Committee to purchase stock under the Plan.  No termination,
modification, or amendment of the Plan may, without the consent of an Employee
then having an Option under the Plan to purchase Common Stock, adversely affect
the rights of such Employee under such Option.

     12.6 EFFECTIVE DATE.  The Plan has been approved by the Board of Directors
and adopted by the Company on April 18, 1996, effective as of such date,
subject, however, to approval by the stockholders of the Company or at special
or annual meeting of the

                                       9

<PAGE>

stockholders held within 12 months after the Plan's adoption date.  If the
Plan is not so approved, the Plan shall not become effective.  Offerings may
commence, however, prior to stockholder approval, but no Options may be
exercised until after such approval.

     12.7 NO EMPLOYMENT RIGHTS.  The Plan does not, directly or indirectly,
create any right for the benefit of any Employee or class of Employees to
purchase any shares under the Plan, or create in any Employee or class of
Employees any right with respect to continuation of employment by the Company or
any Subsidiary, and it shall not be deemed to interfere in any way with the
Company's or any Subsidiary's right to terminate, or otherwise modify, an
Employees' employment at any time.

     12.8 EFFECT OF PLAN.  The provisions of the Plan shall, in accordance with
its terms, be binding upon, and inure to the benefit of, all successors of each
Employee in the Plan, including, without limitation, such Employee's estate and
the executors, administrators or trustees thereof, heirs and legatees, and any
receiver, trustee in bankruptcy or representative of creditors of such employee.

ARTICLE 13.  EXECUTION

     The Plan having been adopted on April 18th, 1996, in order to record the
amendments set forth herein to restate the Plan as set forth above, the Company
has caused its duly authorized officer to execute this Plan document as of the
___ of September, 1999.

                                           SENTO CORPORATION.

                                           By:
                                              ---------------------------------
                                             Its:
                                                 ------------------------------

                                       10

<PAGE>

                                      EXHIBIT A

                              AUTHORIZATION AND ELECTION

     Pursuant to  the Sento Corporation 1996 Employ Stock Purchase Plan (Amended
and Restated) (the "Plan), I, the undersigned employee of Sento Corporation (the
"Company"), hereby:

     (a)  elect to participate in the semi-annual Offering under the Plan
commencing on  October 1 / April 1 (CIRCLE THAT WHICH APPLIES), __________
(INSERT YEAR) and continuing for six months until the following March 31st /
September 30th;

     (b)  unless I deliver a notice to the Human Resources Department of the
Company prior to the applicable Offering Termination Date electing to terminate
my participation in such Offering and to withdraw all accumulated payroll
deductions credited to my account at that time, authorize and direct the Company
to deduct from each of my bi-weekly paychecks an amount equal to ________
percent (SPECIFY A PERCENTAGE NO GREATER THAN 15%) of my Base Pay and credit
such amounts to an account in my name under the Plan; and

     (c)  unless I deliver a notice to the Human Resources Department of the
Company prior to the applicable Offering Termination Date electing to terminate
my participation in such Offering and to withdraw all accumulated payroll
deductions credited to my account at that time, hereby authorize and direct the
Company to use such payroll deductions to purchase the number of full shares of
Common Stock which the accumulated payroll deductions on the Offering
Termination Date will purchase at the applicable exercise price (but not in
excess of the number of shares for which Options have been granted to me in
Section 5.1 of the Plan) and to return any excess accumulated payroll deductions
to me.

     (d)  certify that I have read and understood the Plan, agree to be bound by
the terms and conditions of the Plan, and understand that the capitalized terms
used, but not defined, in this Authorization and Election have the meanings set
forth in the Plan.

Dated this ___ day of _________, ______.

                                   -------------------------------------
                                   (PRINT NAME)

                                   -------------------------------------
                                   (SIGN HERE)

                                       11

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