Exhibit 10.18



SENTO CORPORATION

WARRANT TO PURCHASE  SHARES OF COMMON STOCK

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This
certifies that, for value received,                        (the "Purchaser") or
registered assigns (the Purchaser or such assignee, as
applicable, being referred to herein as the "Holder"), is entitled, subject to the provisions of that certain Subscription Agreement, dated as of
April 15, 2003 between the Company and Purchaser (the "Subscription Agreement"),
to                        (        ) warrants, each such warrant
entitling the Holder to purchase one (1) share of the common stock, par value $0.25 per share (the "Common Stock"), of Sento Corporation, a Utah
corporation (the "Company"), at a price of Two and 25/100 Dollars ($2.25) per share (the "Exercise
Price") (such warrants and this certificate evidencing such warrants being referred to herein, collectively, as this "Warrant").
The number of shares of Common Stock to be received upon the exercise of this Warrant (the "Warrant Shares") and the Exercise Price may be adjusted from
time to time as hereinafter set forth. This Warrant is issued in connection with an 8% Convertible Subordinated Debenture, dated as of April 15, 2003, issued by the Company to Purchaser in the
original principal amount of $                        (the "Debenture").

1.Exercise of Warrant. Subject to the provisions of Section 2 below, this Warrant may be exercised in whole (but not
in part) at any time or from time to time on or after the date hereof, but in any event no later than 5:00 p.m., Utah time, on the date that is three years from the date hereof, or if such date
is a day on which federal or state-chartered banking institutions in Utah are authorized by law to close, then on the next succeeding day which shall not be such a day. Such exercise shall be
effective upon presentation and surrender to the Company at its principal office or at the office of its stock transfer agent, if any, of this Warrant with the duly executed Notice of Exercise form
set forth on Exhibit A (attached hereto and made a part hereof by this reference) (the "Notice of Exercise") indicating whether such exercise is
being made in accordance with Section 1(a) or 1(b) below and the form of payment necessary to comply with the provisions of such Section. The number of Warrant Shares which may be purchased
upon exercise of this Warrant shall initially be equal to the number of

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warrants
granted by this Warrant as identified above, which number may be adjusted, if at all, in accordance with Section 7 below. The Company may require the purchaser to execute such further
documents and make certain representations and warranties as the Company deems necessary to ensure compliance with exemptions from applicable federal and state securities laws as required by
Section 2 below.



|       |  | X =Y(A-B)
        A
|------ |  | -------------------
|Where: |  | X =                
|       |  | Y =                
|       |  | A =                
|       |  | B =                

2.Compliance with Securities Laws. This Warrant may not be exercised by the Holder unless at the time of exercise
(i) a registration statement registering the Warrant Shares upon such exercise is effective under the Securities Act of 1933, as amended (and together with the rules and regulations promulgated
thereunder, collectively, the "Securities Act"), or the transaction in which such Warrant Shares are to be issued is exempted from the application of
the registration requirements of the Securities Act, and (ii) the Warrant Shares have been registered or qualified under any applicable state securities laws or an exemption from registration
or qualification is available under such laws. The Holder may have certain registration rights with respect to the Warrant Shares under the Registration Rights Agreement dated as of the date hereof,
between the Purchaser and the Company (the "Registration Rights Agreement"), pursuant to which the holder of Warrant Shares may, in certain limited
circumstances, obligate the Company to register or qualify such Warrant Shares under federal or state securities laws. This Warrant may not be exercised so long as Purchaser is in default under the
representations, warranties or covenants of this Warrant, the Debenture or the Subscription Agreement.

3.Stock Fully Paid; Reservation of Shares. All Warrant Shares that may be issued upon the exercise of this Warrant shall,
upon issuance, be duly authorized, validly issued, fully paid and nonassessable, and free from all taxes, liens and charges with respect to the issue thereof. The Company hereby covenants and agrees
that at all times from the date hereof and during the period this Warrant is exercisable it shall reserve from its authorized and unissued Common Stock for issuance and delivery upon exercise of this
Warrant such number of shares of its Common Stock as shall be required for issuance and delivery upon exercise of this Warrant. The Company agrees that its issuance of this

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Warrant
shall constitute full authority to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock upon
the exercise of this Warrant.

4.Fractional Shares. No fractional shares or stock representing fractional shares shall be issued upon the exercise of this
Warrant. In lieu of any fractional shares which would otherwise be issuable, the Company shall, in its sole discretion, either (i) pay cash equal to the product of such fraction multiplied by
the fair market value of one share of Common Stock on the date of exercise, as determined in good faith by the Company's Board of Directors or (ii) issue the next largest whole number of
Warrant Shares.

5.Transfer, Exchange, Assignment or Loss of Warrant or Certificates.



Each
Holder of this Warrant, the Warrant Shares or any other security issued or issuable upon exercise of this Warrant shall indemnify and hold harmless the Company, its directors and
officers, and each person, if any, who controls the Company, against any losses, claims, damages or liabilities, joint or several, to which the Company or any such director, officer or any such person
may become subject under the Securities Act or any statute or common law, insofar as such losses, claims, damages or liabilities, or actions in respect thereof, arise out of or are based upon the
disposition by such Holder of the Warrant, the Warrant Shares or other such securities in violation of the terms of this Warrant.

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6.Rights of the Holder. The Holder shall not, by virtue hereof, be entitled to any rights of a shareholder in the Company,
either at law or equity, and the rights of the Holder by virtue hereof are limited to those expressed in this Warrant and are not enforceable against the Company except to the extent set forth herein.

7.Adjustment of Exercise Price and Number of Shares. The number and kind of securities issuable upon the exercise of this
Warrant and the Exercise Price of such securities shall be subject to adjustment from time to time upon the happening of certain events as follows:



8.Adjustment on Books. Whenever the Exercise Price or the number of Warrant Shares issuable on exercise of this Warrant
shall be adjusted as required by the provisions of Section 7 hereof, the Company shall forthwith make an adjustment on it books and records showing the adjusted Exercise Price and number of
Warrant Shares determined as herein provided and setting forth in reasonable detail the facts requiring such adjustment.

9.Transfer to Comply with the Securities Act.



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10.Governing Law. This Warrant shall be governed by, and construed in accordance with, the laws of the State of Utah
applicable to contracts entered into and to be performed wholly within such State.

11.Modification and Waiver. This Warrant and any provision hereof may be modified, amended, waived or discharged only by an
instrument in writing signed by the party against which enforcement of the same is sought.

12.Notice. Notices and other communications to be given to the Holder shall be delivered by hand or mailed, postage prepaid,
to such address as the Holder shall have designated by written notice to the Company as provided in this Section. Notices or other communications to the Company shall be deemed to have been
sufficiently given if delivered by hand or mailed postage prepaid to the Company at 808 East Utah Valley Drive, American Fork, Utah 84003, or such other address as the Company shall have designated by
written notice to the Holder as provided in this Section. Notice by mail shall be deemed given when deposited in the United States mail, postage prepaid, as herein provided.

13.Construction. The descriptive headings of the several paragraphs and sections of this Warrant are inserted for
convenience only and do not constitute a part of this Warrant. Unless otherwise indicated, references to sections shall be construed as references to the corresponding Sections of this Warrant.

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IN
WITNESS WHEREOF, the Company has executed this Warrant effective as of the            day
of                        , 2000.

| |  | SENTO CORPORATION, a Utah corporation
| |  | -------------------------------------
| |  | By:                                  
| |  |                                      
| |  | Its:                                 
| |  |                                      

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EXHIBIT ANOTICE OF EXERCISE

1.     The
undersigned holder of the attached warrant (the "Warrant") hereby elects to purchase the Warrant Shares (as defined in
the Warrant) pursuant to (Select (a) or (b) below):

|Initial
Here | (a) Section 1(a) of the Warrant and the terms and conditions of the Warrant and tenders herewith payment of the purchase price of such shares in full; or
|------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------
|Initial
Here | (b) Section 1(b) of the Warrant and the terms and conditions of the Warrant.                                                                             

2.     Please
issue a certificate or certificates representing the Warrant Shares in the name of the undersigned.

(Date)

| | (SIGNATURE)         
| | --------------------
| | (PRINT OR TYPE NAME)

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EXHIBIT BASSIGNMENT FORM

Dated:

FOR
VALUE RECEIVED,                        hereby sells, assigns, and transfers
unto                        (please type or print)
                        (address) the right to purchase Common Stock
represented by the warrant attached hereto to the extent of                        shares as to which such right is exercisable
and does hereby irrevocably constitute and appoint the Sento Corporation (the
"Company") and/or its transfer agent as attorney to transfer the same on the books of the Company with full power of substitution in the premises.

| | (SIGNATURE)
| | -----------

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