Exhibit 10.19

EXHIBIT B

NEITHER
THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE
UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE
STATE SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE
COMPANY. THIS SECURITY MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT WITH A REGISTERED BROKER-DEALER OR OTHER LOAN WITH A FINANCIAL INSTITUTION THAT IS AN "ACCREDITED INVESTOR" AS
DEFINED IN RULE 501(a) UNDER THE SECURITIES ACT.

COMMON STOCK PURCHASE WARRANT

To Purchase ____________ Shares of Common Stock of

Sento Corporation

THIS COMMON STOCK PURCHASE WARRANT (the "Warrant") CERTIFIES that, for value received, ____________ (the
"Holder"), is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the
day beginning six months after the date of the Purchase Agreement (the "Initial Exercise Date") and on or prior to the 42 month anniversary of
the Initial Exercise Date (the "Termination Date") but not thereafter, to subscribe for and purchase from Sento Corporation, a Utah corporation (the
"Company"), up to ____________ shares (the "Warrant Shares") of Common Stock, par value $0.25 per share,
of the Company (the "Common Stock"). The purchase price of one share of Common Stock (the "Exercise
Price") under this Warrant shall be$12.67(1), subject to adjustment hereunder. The Exercise Price and the number of Warrant
Shares for which the Warrant is exercisable shall be subject to adjustment as provided herein.Capitalized terms used and not otherwise defined herein shall have the meanings
set forth in that certain Securities Purchase Agreement (the "Purchase Agreement"), dated March 30, 2004 among the Company and the purchasers
signatory thereto.

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1.Title to Warrant.Prior to the Termination Date and subject to compliance with applicable laws and
Section 7 of this Warrant, this Warrant and all rights hereunder are transferable, in whole or in part, at the office or agency of the Company by the Holder in person or by duly authorized
attorney, upon surrender of this Warrant together with the Assignment Form annexed hereto properly endorsed. The transferee shall sign an investment letter in form and substance reasonably
satisfactory to the Company.

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2.Authorization of Shares.The Company covenants that all Warrant Shares which may be issued upon the exercise
of the purchase rights represented by this Warrant will, upon exercise of the purchase rights represented by this Warrant and payment of the Exercise Price, be duly authorized, validly issued, fully
paid and nonassessable and free from all taxes, liens and charges in respect of the issue thereof (other than taxes in respect of any transfer occurring contemporaneously with such issue).

3.Exercise of Warrant.



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|(A) |  | = |  | the Closing Price on the Trading Day immediately preceding the date of such election;                                                                                        
|--- |  | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(B) |  | = |  | the Exercise Price of this Warrant, as adjusted; and                                                                                                                         
|(X) |  | = |  | the number of Warrant Shares issuable upon exercise of this Warrant in accordance with the terms of this Warrant by means of a cash exercise rather than a cashless exercise.



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4.No Fractional Shares or Scrip.No fractional shares or scrip representing fractional
shares shall be issued upon the exercise of this Warrant. As to any fraction of a share which Holder would otherwise be entitled to purchase upon such exercise, the Company shall pay a cash adjustment
in respect of such final fraction in an amount equal to such fraction multiplied by the Exercise Price.

5.Charges, Taxes and Expenses.Issuance of certificates for Warrant Shares shall be made without charge to the
Holder for any issue or transfer tax or other incidental expense in respect of the issuance of such certificate, all of which taxes and expenses shall be paid by the Company, and such certificates
shall be issued in the name of the Holder or in such name or names as may be directed by the Holder; provided, however, that in the event certificates for Warrant Shares are to be issued in a name
other than the name of the Holder, this Warrant when surrendered for exercise shall be accompanied by the Assignment Form attached hereto duly executed by the Holder; and the Company may require, as a
condition thereto, the payment of a sum sufficient to reimburse it for any transfer tax incidental thereto.

6.Closing of Books.The Company will not close its stockholder books or records in any manner which prevents
the timely exercise of this Warrant, pursuant to the terms hereof.

7.Transfer, Division and Combination.



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8.No Rights as Shareholder until Exercise.This Warrant does not entitle the Holder to any voting rights or
other rights as a shareholder of the Company prior to the exercise hereof. Upon the surrender of this Warrant and the payment of the aggregate Exercise Price (or by means of a cashless exercise), the
Warrant Shares so purchased shall be and be deemed to be issued to such Holder as the record owner of such shares as of the close of business on the later of the date of such surrender or payment.

9.Loss, Theft, Destruction or Mutilation of Warrant.The Company covenants that upon receipt by the Company of
evidence reasonably satisfactory to it of the loss, theft, destruction or mutilation of this Warrant or any stock certificate relating to the Warrant Shares, and in case of loss, theft or destruction,
of indemnity or security reasonably satisfactory to it (which, in the case of the Warrant, shall not include the posting of any bond), and upon surrender and cancellation of such Warrant or stock
certificate, if mutilated, the Company will make and deliver a new Warrant or stock certificate of like tenor and dated as of such cancellation, in lieu of such Warrant or stock certificate.

10.Saturdays, Sundays, Holidays, etc.If the last or appointed day for the taking of any action or the
expiration of any right required or granted herein shall be a Saturday, Sunday or a legal holiday, then such action may be taken or such right may be exercised on the next succeeding day not a
Saturday, Sunday or legal holiday.

11.Adjustments of Exercise Price and Number of Warrant Shares.



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12.Reorganization, Reclassification, Merger, Consolidation or Disposition of Assets.In case the Company shall
reorganize its capital, reclassify its capital stock, consolidate or merge with or into another corporation (where the Company is not the surviving corporation or where there is a change in or
distribution with respect to the Common Stock of the Company), or sell, transfer or otherwise dispose of its property, assets or business to another corporation and, pursuant to the terms of such
reorganization, reclassification, merger, consolidation or disposition of assets, shares of common stock of the successor or acquiring corporation, or any cash, shares of stock or other securities or
property of any nature whatsoever (including warrants or other subscription or purchase rights) in addition to or in lieu of common stock of the successor or acquiring corporation
("Other Property"), are to be received by or distributed to the holders of Common Stock of the Company, then the Holder shall have the right thereafter
to receive, upon exercise of this Warrant, the number of shares of Common Stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and Other Property
receivable upon or as a result of such reorganization, reclassification, merger, consolidation or disposition of assets by a Holder of the number of shares of Common Stock for which this Warrant is
exercisable immediately prior to such event. In case of any such reorganization, reclassification, merger, consolidation or disposition of assets, the successor or acquiring corporation (if other than
the Company) shall expressly assume the due and punctual observance and performance of each and every covenant and condition of this Warrant to be performed and observed by the Company and all the
obligations and liabilities hereunder, subject to such modifications as may be deemed appropriate (as determined in good faith by resolution of the Board of Directors of the Company) in order to
provide for adjustments of Warrant Shares for which this Warrant is exercisable which shall be as nearly equivalent as practicable to the adjustments provided for in this Section 12. For
purposes of this Section 12, "common stock of the successor or acquiring corporation" shall include stock of such corporation of any class which is not preferred as to dividends or assets over
any other class of stock of such corporation and which is not subject to redemption and shall also include any evidences of indebtedness, shares of stock or other securities which are convertible into
or exchangeable for any such stock, either immediately or upon the arrival of a specified date or the happening of a specified event and any warrants or other rights to subscribe for or purchase any
such stock. The foregoing provisions of this Section 12 shall similarly apply to successive reorganizations, reclassifications, mergers, consolidations or disposition of assets.

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13.Voluntary Adjustment by the Company.The Company may at any time during the term of this Warrant reduce the
then current Exercise Price to any amount and for any period of time deemed appropriate by the Board of Directors of the Company.

14.Notice of Adjustment.Whenever the number of Warrant Shares or number or kind of securities or other
property purchasable upon the exercise of this Warrant or the Exercise Price is adjusted, as herein provided, the Company shall give notice thereof to the Holder, which notice shall state the number
of Warrant Shares (and other securities or property) purchasable upon the exercise of this Warrant and the Exercise Price of such Warrant Shares (and other securities or property) after such
adjustment, setting forth a brief statement of the facts requiring such adjustment and setting forth the computation by which such adjustment was made.

15.Notice of Corporate Action.If at any time:



then,
in any one or more of such cases, the Company shall give to Holder (i) at least 20 days' prior written notice of the date on which a record date shall be selected for such
dividend, distribution or right or for determining rights to vote in respect of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, liquidation or winding
up, and (ii) in the case of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up, at least 20 days' prior
written notice of the date when the same shall take place. Such notice in accordance with the foregoing clause also shall specify (i) the date on which any such record is to be taken for the
purpose of such dividend, distribution or right, the date on which the holders of Common Stock shall be entitled to any such dividend, distribution or right, and the amount and character thereof, and
(ii) the date on which any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up is to take place and the time, if
any such time is to be fixed, as of which the holders of Common Stock shall be entitled to exchange their Warrant Shares for securities or other property deliverable upon such disposition,
dissolution, liquidation or winding up. Each such written notice shall be sufficiently given if addressed to Holder at the last address of Holder appearing on the books of the Company and delivered in
accordance with Section 17(d).

16.Authorized Shares.The Company covenants that during the period the Warrant is outstanding, it will reserve
from its authorized and unissued Common Stock a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of any purchase rights under this Warrant. The Company
further covenants that its issuance of this 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 the Warrant Shares upon the exercise of the purchase rights under this Warrant. The Company will take all such reasonable action as may be necessary to assure that such Warrant Shares
may be issued as provided herein without violation of any applicable law or regulation, or of any requirements of the Principal Market upon which the Common Stock may be listed.

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Except
and to the extent as waived or consented to by the Holder, the Company shall not by any action, including, without limitation, amending its certificate of incorporation or through
any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of
the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such actions as may be necessary or appropriate to protect the
rights of Holder as set forth in this Warrant against impairment. Without limiting the generality of the foregoing, the Company will (a) not increase the par value of any Warrant Shares above
the amount payable therefor upon such exercise immediately prior to such increase in par value, (b) take all such action as may be necessary or appropriate in order that the Company may validly
and legally issue fully paid and nonassessable Warrant Shares upon the exercise of this Warrant, and (c) use commercially reasonable efforts to obtain all such authorizations, exemptions or
consents from any public regulatory body having jurisdiction thereof as may be necessary to enable the Company to perform its obligations under this Warrant.

Before
taking any action which would result in an adjustment in the number of Warrant Shares for which this Warrant is exercisable or in the Exercise Price, the Company shall obtain all
such authorizations or exemptions thereof, or consents thereto, as may be necessary from any public regulatory body or bodies having jurisdiction thereof.

17.Miscellaneous.



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IN
WITNESS WHEREOF, the Company has caused this Warrant to be executed by its officer thereunto duly authorized.

Dated:
March 30, 2004

| |  | SENTO CORPORATION
| |  | -----------------
| |  | By:              
| |  |                  

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NOTICE OF EXERCISE

To:
Sento Corporation

(1)   The
undersigned hereby elects to purchase ______ Warrant Shares of the Company pursuant to the terms of the attached Warrant (only if exercised in full), and tenders
herewith payment of the exercise price in full, together with all applicable transfer taxes, if any.

(2)   Payment
shall take the form of (check applicable box):



(3)   Please
issue a certificate or certificates representing said Warrant Shares in the name of the undersigned or in such other name as is specified below:




The Warrant Shares shall be delivered to the following:




(4)Accredited Investor.The undersigned is an "accredited investor" as defined in
Regulation D under the Securities Act of 1933, as amended.

| |  | [PURCHASER] 
| |  | ------------
| |  | By:         
| |  |             
| |  | Name:
Title:

| |  | Dated:
| |  | ------
| |  |       

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ASSIGNMENT FORM

(To assign the foregoing warrant, execute
this form and supply required information.
Do not use this form to exercise the warrant.)

FOR
VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby are hereby assigned to

| |  | whose address is | 
| |  | ---------------- | 
| | 
| | 

| |  | Dated: |  |  |  | , |  |  |  | 
| |  | ------ |  |  |  | - |  |  |  | 
| |  |        |  |  |  |   |  |  |  | 

| |  | Holder's Signature: |  |  |  | 
| |  | ------------------- |  |  |  | 
| |  |                     |  |  |  | 
| |  | Holder's Address:   |  |  |  | 
| |  |                     |  |  |  | 
| |  |                     |  |  |  | 

|Signature Guaranteed: |  |  |  | 
|--------------------- |  |  |  | 

NOTE: The signature to this Assignment Form must correspond with the name as it appears on the face of the Warrant, without alteration or enlargement or any change whatsoever,
and must be guaranteed by a bank or trust company. Officers of corporations and those acting in a fiduciary or other representative capacity should file proper evidence of authority to assign the
foregoing Warrant.

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