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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.  

	(1)
	120%
of the average of the 5 Closing Prices immediately prior to March 30, 2004. 

        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.    

        (a)   Exercise
of the purchase rights represented by this Warrant may be made at any time or times on or after the Initial Exercise Date and on or before the Termination Date
by delivery to the Company of a duly executed facsimile copy of the Notice of Exercise Form annexed hereto (or such other office or agency of the Company as it may designate by notice in writing to
the registered Holder at the address of such Holder appearing on the books of the Company); provided, however, within 5 Trading Days of the date said Notice of Exercise is delivered to the Company,
the Holder shall have surrendered this Warrant to the Company and the Company shall have received payment of the aggregate Exercise Price of the shares thereby purchased by wire transfer or cashier's
check drawn on a United States bank. Certificates for shares purchased hereunder shall be delivered to the Holder within 5 Trading Days from the delivery to the Company of the Notice of Exercise Form,
surrender of this Warrant and payment of the aggregate Exercise Price as set forth above ("Warrant Share Delivery Date"). This Warrant shall be deemed to have been exercised on the later of the date
the Notice of Exercise is delivered to the Company by facsimile copy and the date the Exercise Price is received by the Company. The Warrant Shares shall be deemed to have been issued, and Holder or
any other person so designated to be named therein shall be deemed to have become a holder of record of such shares for all purposes, as of the date the Warrant has been exercised by payment to the
Company of the Exercise Price and all taxes required to be paid by the Holder, if any, pursuant to Section 5 prior to the issuance of such shares, have been paid. If the Company fails to
deliver to the Holder a certificate or certificates representing the Warrant Shares pursuant to this Section 3(a) by the fifth Trading Day following the Warrant Share Delivery Date, then the
Holder will have the right to rescind such exercise. In addition to any other rights available to the Holder, if the Company fails to deliver to the Holder a certificate or certificates representing
the Warrant Shares pursuant to an exercise by the fifth Trading Day after the Warrant Share Delivery Date, and if after such day the Holder is required by its broker to purchase (in an open market
transaction or otherwise) shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the Holder anticipated receiving upon such exercise (a
"Buy-In"), then the Company shall (1) pay in cash to the Holder the amount by which (x) the Holder's total purchase price (including brokerage commissions, if any) for the
shares of Common Stock so purchased exceeds (y) the amount obtained by multiplying (A) the number of Warrant Shares that the Company was required to deliver to the Holder in connection
with the exercise at issue times (B) the price at which the sell order giving rise to such purchase obligation was executed, and (2) at the option of the Holder, either reinstate the
portion of the Warrant and equivalent number of Warrant Shares for which such exercise was not honored or deliver to the Holder the number of shares of Common Stock that would have been issued had the
Company timely complied with its exercise and delivery obligations hereunder. For example, if the Holder purchases Common Stock having a total purchase price of $11,000 to cover a Buy-In
with respect to an attempted exercise of shares of Common Stock with an aggregate sale price giving rise to such purchase obligation of $10,000, under clause (1) of the immediately preceding
sentence the Company shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice indicating the amounts payable to the Holder in respect of the Buy-In,
together with applicable confirmations and other evidence reasonably requested by the Company. Nothing herein shall limit a Holder's right to pursue any other remedies available to it hereunder, at
law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the Company's failure to timely deliver 

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certificates
representing shares of Common Stock upon exercise of the Warrant as required pursuant to the terms hereof. 

        (b)   If
this Warrant shall have been exercised in part, the Company shall, at the time of delivery of the certificate or certificates representing Warrant Shares, deliver to
Holder a new Warrant evidencing the rights of Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which new Warrant shall in all other respects be identical with this
Warrant. 

        (c)   The
Holder shall not have the right to exercise any portion of this Warrant, pursuant to Section 3(a) or otherwise, to the extent that after giving effect to such
issuance after exercise, the Holder (together with the Holder's affiliates), as set forth on the applicable Notice of Exercise, would beneficially own in excess of 4.99% of the number of shares of the
Common Stock outstanding immediately after giving effect to such issuance. For purposes of the foregoing sentence, the number of shares of Common Stock beneficially owned by the Holder and its
affiliates shall include the number of shares of Common Stock issuable upon exercise of this Warrant with respect to which the determination of such sentence is being made, but shall exclude the
number of shares of Common Stock which would be issuable upon (A) exercise of the remaining, nonexercised portion of this Warrant beneficially owned by the Holder or any of its affiliates and
(B) exercise or conversion of the unexercised or nonconverted portion of any other securities of the Company (including, without limitation, any other Warrants) subject to a limitation on
conversion or exercise analogous to the limitation contained herein beneficially owned by the Holder or any of its affiliates. Except as set forth in the preceding sentence, for purposes of this
Section 3(c), beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act, it being acknowledged by Holder that the Company is not representing to
Holder that such calculation is in compliance with Section 13(d) of the Exchange Act and Holder is solely responsible for any schedules required to be filed in accordance therewith. To the
extent that the limitation contained in this Section 3(c) applies, the determination of whether this Warrant is exercisable (in relation to other securities owned by the Holder) and of which a
portion of this Warrant is exercisable shall be in the sole discretion of such Holder, and the submission of a Notice of Exercise shall be deemed to be such Holder's determination of whether this
Warrant is exercisable (in relation to other securities owned by such Holder) and of which portion of this Warrant is exercisable, in each case subject to such aggregate percentage limitation, and the
Company shall have no obligation to verify or confirm the accuracy of such determination. For purposes of this Section 3(c), in determining the number of outstanding shares of Common Stock, the
Holder may rely on the number of outstanding shares of Common Stock as reflected in (x) the Company's most recent Form 10-QSB or Form 10-KSB, as the case
may be, (y) a more recent public announcement by the Company or (z) any other notice by the Company or the Company's Transfer Agent setting forth the number of shares of Common Stock
outstanding. Upon the written or oral request of the Holder, the Company shall within two Trading Days confirm orally and in writing to the Holder the number of shares of Common Stock then
outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including this Warrant,
by the Holder or its affiliates since the date as of which such number of outstanding shares of Common Stock was reported. 

        (d)   If
at any time after one year from the date of issuance of this Warrant there is no effective Registration Statement registering the resale of the Warrant Shares by the
Holder at such time, this Warrant may also be exercised at such time by means of a "cashless exercise" in which 

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the
Holder shall be entitled to receive a certificate for the number of Warrant Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where: 

	(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.

        (e)   Subject
to the provisions of this Section 3, if after the 12 month anniversary of the Effective Date, the Closing Price for each of twenty consecutive
Trading Days (the "Measurement Price", which period shall not have commenced until after such anniversary date) exceeds $19.00 per share (the
"Threshold Price") (subject to adjustment for reverse and forward stock splits, stock dividends, stock combinations and other similar transactions of
the Common Stock that occur after the date of the Purchase Agreement), then the Company may, within two Trading Days of such period, call for cancellation of all or any portion of this Warrant for
which a Notice of Exercise has not yet been delivered (such right, a "Call"). To exercise this right, the Company must deliver to the Holder an
irrevocable written notice (a "Call Notice"), indicating therein the portion of unexercised portion of this Warrant to which such notice applies. If the
conditions set forth below for such Call are satisfied from the period from the date of the Call Notice through and including the Call Date (as defined below), then any portion of this Warrant subject
to such Call Notice for which a Notice of Exercise shall not have been received from and after the date of the Call Notice will be cancelled at 6:30 p.m. (New York City time) on the tenth
Trading Day after the date the Call Notice is received by the Holder (such date, the "Call Date"). Any unexercised portion of this Warrant to which the
Call Notice does not pertain will be unaffected by such Call Notice. In furtherance thereof, the Company covenants and agrees that it will honor all Notices of Exercise with respect to Warrant Shares
subject to a Call Notice that are tendered from the time of delivery of the Call Notice through 6:30 p.m. (New York City time) on the Call Date. The parties agree that any Notice of Exercise
delivered following a Call Notice shall first reduce to zero the number of Warrant Shares subject to such Call Notice prior to reducing the remaining Warrant Shares available for purchase under this
Warrant. For example, if (x) this Warrant then permits the Holder to acquire 100 Warrant Shares, (y) a Call Notice pertains to 75 Warrant Shares, and (z) prior to 6:30 p.m.
(New York City time) on the Call Date the Holder tenders a Notice of Exercise in respect of 50 Warrant Shares, then (1) on the Call Date the right under this Warrant to acquire 25 Warrant
Shares will be automatically cancelled, (2) the Company, in the time and manner required under this Warrant, will have issued and delivered to the Holder 50 Warrant Shares in respect of the
exercises following receipt of the Call Notice, and (3) the Holder may, until the Termination Date, exercise this Warrant for 25 Warrant Shares (subject to adjustment as herein provided and
subject to subsequent Call Notices). Subject again to the provisions of this Section 3(e), the Company may deliver subsequent Call Notices for any portion of this Warrant for which the Holder
shall not have delivered a Notice of Exercise. Notwithstanding anything to the contrary set forth in this Warrant, the Company may not deliver a Call Notice or require the cancellation of this Warrant
(and any Call Notice will be void), unless, from the beginning of the 20th consecutive Trading Days used to determine whether the Common Stock has achieved the Threshold Price through
the Call Date, (i) the Company shall have honored in accordance with the terms of this Warrant all Notices of Exercise delivered by 6:30 p.m. (New York City time) on the Call Date,
(ii) the Registration Statement shall be effective as to all Warrant Shares and the prospectus thereunder available for use by the Holder for the resale of all such Warrant Shares and
(iii) the Common Stock shall be listed or quoted for trading on the Trading Market. The Company's right to Call the Warrant shall be exercised ratably among the Purchasers based on each
Purchaser's initial purchase of Common Stock pursuant to the Purchase Agreement. 

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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.    

        (a)   Subject
to compliance with any applicable securities laws and the conditions set forth in Sections 1 and 7(e) hereof and to the provisions of Section 4.1 of the
Purchase Agreement, this Warrant and all rights hereunder are transferable, in whole or in part, upon surrender of this Warrant at the principal office of the Company, together with a written
assignment of this Warrant substantially in the form attached hereto duly executed by the Holder or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making of such
transfer. Upon such surrender and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants in the name of the assignee or assignees and in the denomination or
denominations specified in such instrument of assignment, and shall issue to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this Warrant shall promptly be
cancelled. A Warrant, if properly assigned, may be exercised by a new holder for the purchase of Warrant Shares without having a new Warrant issued. 

        (b)   This
Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid office of the Company, together with a written notice specifying
the names and denominations in which new Warrants are to be issued, signed by the Holder or its agent or attorney. Subject to compliance with Section 7(a), as to any transfer which may be
involved in such division or combination, the Company shall execute and deliver a new Warrant or Warrants in exchange for the Warrant or Warrants to be divided or combined in accordance with such
notice. 

        (c)   The
Company shall prepare, issue and deliver at its own expense (other than transfer taxes) the new Warrant or Warrants under this Section 7. 

        (d)   The
Company agrees to maintain, at its aforesaid office, books for the registration and the registration of transfer of the Warrants. 

        (e)   If,
at the time of the surrender of this Warrant in connection with any transfer of this Warrant, the transfer of this Warrant shall not be registered pursuant to an
effective registration statement under the Securities Act and under applicable state securities or blue sky laws, the Company may require, as a condition of allowing such transfer (i) that the
Holder or transferee of this Warrant, as the case may be, furnish to the Company a written opinion of counsel (which opinion shall be in form, substance and scope customary for opinions of counsel in
comparable transactions) to the effect that such transfer may be made without registration under the Securities Act and under applicable state securities or blue sky laws, (ii) that the holder
or transferee execute and deliver to the Company an investment letter in form and substance acceptable to the 

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Company
and (iii) that the transferee be an "accredited investor" as defined in Rule 501(a)(1), (a)(2), (a)(3), (a)(7), or (a)(8) promulgated under the Securities Act or a qualified
institutional buyer as defined in Rule 144A(a) under the Securities Act. 

        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.    

        (a)    Stock Splits, etc.    The number and kind of securities purchasable upon the exercise of this Warrant and the
Exercise Price shall be subject to adjustment from time to time upon the happening of any of the following. In case the Company shall (i) pay a dividend in shares of Common Stock or make a
distribution in shares of Common Stock to holders of its outstanding Common Stock, (ii) subdivide its
outstanding shares of Common Stock into a greater number of shares, (iii) combine its outstanding shares of Common Stock into a smaller number of shares of Common Stock, or (iv) issue
any shares of its capital stock in a reclassification of the Common Stock, then the number of Warrant Shares purchasable upon exercise of this Warrant immediately prior thereto shall be adjusted so
that the Holder shall be entitled to receive the kind and number of Warrant Shares or other securities of the Company which it would have owned or have been entitled to receive had such Warrant been
exercised in advance thereof. Upon each such adjustment of the kind and number of Warrant Shares or other securities of the Company which are purchasable hereunder, the Holder shall thereafter be
entitled to purchase the number of Warrant Shares or other securities resulting from such adjustment at an Exercise Price per Warrant Share or other security obtained by multiplying the Exercise Price
in effect immediately prior to such adjustment by the number of Warrant Shares purchasable pursuant hereto immediately prior to such adjustment and dividing by the number of Warrant Shares or other
securities of the Company that are purchasable pursuant hereto immediately after such adjustment. An adjustment made pursuant to this paragraph shall become effective immediately after the effective
date of such event retroactive to the record date, if any, for such event. 

        (b)    Anti-Dilution Provisions.    During the Exercise Period, the Exercise Price shall be subject to
adjustment from time to time as provided in this Section 11(b). In the event that any adjustment of the Exercise Price as required herein results in a fraction of a cent, such Exercise Price
shall be rounded up or down to the nearest cent. 

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        (i)    Adjustment of Exercise Price.    If and whenever the Company issues or sells, or in accordance with
Section 11(b)(ii) hereof is deemed to have issued or sold, any shares of Common Stock for an effective consideration per share of less than the then Exercise Price or for no
consideration (such lower price, the "Base Share Price" and such issuances collectively, a "Dilutive
Issuance"), then, from the Initial Exercise Date until the 12 month anniversary of the Effective Date (if the Registration Statement is unavailable for use by the Holder
during such period, such period shall be extended for such number of unavailable days), the Exercise Price shall be reduced to a price equal to the Base Share Price and (b) after the
12 month anniversary of the Effective Date (as extended in clause (a) above), the Exercise Price shall be reduced by multiplying the Exercise Price by a fraction, the numerator of which
is the number of shares of Common Stock issued and outstanding immediately prior to the Dilutive Issuance plus the number of shares of Common Stock which the offering price for such Dilutive Issuance
would purchase at the then Exercise Price, and the denominator of which shall be the sum of the number of shares of Common Stock issued and outstanding immediately prior to the Dilutive Issuance plus
the number of shares of Common Stock so issued or issuable in connection with the Dilutive Issuance; provided;  however, that in no event will the Exercise
Price be less than $______(2), subject to adjustment for reverse and forward stock splits, stock dividends,
stock combinations and other similar transactions of the Common Stock that occur after the date of the Purchase Agreement. Such adjustment shall be made whenever shares of Common Stock or Common Stock
Equivalents are issued. 

	(2)
	The
lesser of (a) the Closing Price on the date before the date of the Purchase Agreement and (b) the average of the 5 consecutive Closing Prices immediately prior to
the date of the Purchase Agreement. 

        (ii)    Effect on Exercise Price of Certain Events.    For purposes of determining the adjusted Exercise Price under
Section 11(b) hereof, the following will be applicable: 

        (A)    Issuance of Rights or Options.    If the Company in any manner issues or grants any warrants, rights or
options, whether or not immediately exercisable, to subscribe for or to purchase Common Stock or Common Stock Equivalents (such warrants, rights and options to purchase Common Stock or Common Stock
Equivalents are hereinafter referred to as "Options") and the effective price per share for which Common Stock is issuable upon the exercise of such
Options is less than the Exercise Price ("Below Base Price Options"), then the maximum total number of shares of Common Stock issuable upon the exercise
of all such Below Base Price Options (assuming full exercise, conversion or exchange of Common Stock Equivalents, if applicable) will, as of the date of the issuance or grant of such Below Base Price
Options, be deemed to be outstanding and to have been issued and sold by the Company for such price per share and the maximum consideration payable to the Company upon such exercise (assuming full
exercise, conversion or exchange of Common Stock Equivalents, if applicable) will be deemed to have been received by the Company. For purposes of the preceding sentence, the "effective price per share
for which Common Stock is issuable upon the exercise of such Below Base Price Options" is determined by dividing (i) the total amount, if any, received or receivable by the Company as
consideration for the issuance or granting of all such Below Base Price Options, plus the minimum aggregate amount of additional consideration, if any, payable to the Company upon the exercise of all
such Below Base Price Options, plus, in the case of Common Stock Equivalents issuable upon the exercise of such Below Base Price Options, the minimum aggregate amount of additional consideration
payable upon the exercise, conversion or exchange thereof at the time such Common Stock Equivalents first become exercisable, convertible or exchangeable, by (ii) the maximum total number of
shares of Common Stock issuable upon the exercise of 

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all
such Below Base Price Options (assuming full conversion of Common Stock Equivalents, if applicable). No further adjustment to the Exercise Price will be made upon the actual issuance of such
Common Stock upon the exercise of such Below Base Price Options or upon the exercise, conversion or exchange of Common Stock Equivalents issuable upon exercise of such Below Base Price Options. 

        (B)    Issuance of Common Stock Equivalents.    If the Company in any manner issues or sells any Common Stock
Equivalents, whether or not immediately convertible (other than where the same are issuable upon the exercise of Options) and the effective price per share for which Common Stock is issuable upon such
exercise, conversion or exchange is less than the Exercise Price, then the maximum total number of shares of Common Stock issuable upon the exercise, conversion or exchange of all such Common Stock
Equivalents will, as of the date of the issuance of such Common Stock Equivalents, be deemed to be outstanding and to have been issued and sold by the Company for such price per share and the maximum
consideration payable to the Company upon such exercise (assuming full exercise, conversion or exchange of Common Stock Equivalents, if applicable) will be deemed to have been received by the Company.
For the purposes of the preceding sentence, the "effective price per share for which Common Stock is issuable upon such exercise, conversion or exchange" is determined by dividing (i) the total
amount, if any, received or receivable by the Company as consideration for the issuance or sale of all such Common Stock Equivalents, plus the minimum aggregate amount of additional consideration, if
any, payable to the Company upon the exercise, conversion or exchange thereof at the time such Common Stock Equivalents first become exercisable, convertible or exchangeable, by (ii) the
maximum total number of shares of Common Stock issuable upon the exercise, conversion or exchange of all such Common Stock Equivalents. No further adjustment to the Exercise Price will be made upon
the actual issuance of such Common Stock upon exercise, conversion or exchange of such Common Stock Equivalents. 

        (C)    Change in Option Price or Conversion Rate.    If there is a change at any time in (i) the amount of
additional consideration payable to the Company upon the exercise of any Options; (ii) the amount of additional consideration, if any, payable to the Company upon the exercise, conversion or
exchange of any Common Stock Equivalents; or (iii) the rate at which any Common Stock Equivalents are convertible into or exchangeable for Common Stock (in each such case, other than under or
by reason of provisions designed to protect against dilution), the Exercise Price in effect at the time of such change will be readjusted to the Exercise Price which would have been in effect at such
time had such Options or Common Stock Equivalents still outstanding provided for such changed additional consideration or changed conversion rate, as the case may be, at the time initially granted,
issued or sold. 

        (D)    Calculation of Consideration Received.    If any Common Stock, Options or Common Stock Equivalents are issued,
granted or sold for cash, the consideration received therefor for purposes of this Warrant will be the amount received by the Company therefor, before deduction of reasonable commissions, underwriting
discounts or allowances or other reasonable expenses paid or incurred by the Company in connection with such issuance, grant or sale. In case any Common Stock, Options or Common Stock Equivalents are
issued or sold for a consideration part or all of which shall be other than cash, the amount of the consideration other than cash received by the Company will be the fair market value of such
consideration, except where such consideration consists of securities, in which case the amount of consideration received by the Company will be the fair market value (closing sale price, if traded on
any market) 

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thereof
as of the date of receipt. In case any Common Stock, Options or Common Stock Equivalents are issued in connection with any merger or consolidation in which the Company is the surviving
corporation, the amount of consideration therefor will be deemed to be the fair market value of such portion of the net assets and business of the non-surviving corporation as is
attributable to such Common Stock, Options or Common Stock Equivalents, as the case may be. The fair market value of any consideration other than cash or securities will be determined in good faith by
an investment banker or other appropriate expert of national reputation selected by the Company and reasonably acceptable to the holder hereof, with the costs of such appraisal to be borne by the
Company. 

        (E)    Exceptions to Adjustment of Exercise Price.    Notwithstanding the foregoing, no adjustment will be made under
this Section 11(b) in respect of an Exempt Issuance. 

        (iii)    Minimum Adjustment of Exercise Price.    No adjustment of the Exercise Price shall be made in an amount of
less than 1% of the Exercise Price in effect at the time such adjustment is otherwise required to be made, but any such lesser adjustment shall be carried forward and shall be made at the time and
together with the next subsequent adjustment which, together with any adjustments so carried forward, shall amount to not less than 1% of such Exercise Price. 

        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. 

9

 

        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: 

        (a)   the
Company shall take a record of the holders of its Common Stock for the purpose of entitling them to receive a dividend or other distribution, or any right to
subscribe for or purchase any evidences of its indebtedness, any shares of stock of any class or any other securities or property, or to receive any other right, or 

        (b)   there
shall be any capital reorganization of the Company, any reclassification or recapitalization of the capital stock of the Company or any consolidation or merger of
the Company with, or any sale, transfer or other disposition of all or substantially all the property, assets or business of the Company to, another corporation or, 

        (c)   there
shall be a voluntary or involuntary dissolution, liquidation or winding up of the Company; 

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. 

10

 

        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.    

        (a)    Jurisdiction.    All questions concerning the construction, validity, enforcement and interpretation of this
Warrant shall be determined in accordance with the provisions of the Purchase Agreement. 

        (b)    Restrictions.    The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if
not registered, will have restrictions upon resale imposed by state and federal securities laws. 

        (c)    Nonwaiver and Expenses.    No course of dealing or any delay or failure to exercise any right hereunder on the
part of Holder shall operate as a waiver of such right or otherwise prejudice Holder's rights, powers or remedies, notwithstanding all rights hereunder terminate on the Termination Date. If the
Company willfully and knowingly fails to comply with any provision of this Warrant, which results in any material damages to the Holder, the Company shall pay to Holder such amounts as shall be
sufficient to cover any costs and expenses including, but not limited to, reasonable attorneys' fees, including those of appellate proceedings, incurred by Holder in collecting any amounts due
pursuant hereto or in otherwise enforcing any of its rights, powers or remedies hereunder. 

        (d)    Notices.    Any notice, request or other document required or permitted to be given or delivered to the Holder
by the Company shall be delivered in accordance with the notice provisions of the Purchase Agreement. 

        (e)    Limitation of Liability.    No provision hereof, in the absence of any affirmative action by Holder to exercise
this Warrant or purchase Warrant Shares, and no enumeration herein of the rights or privileges of Holder, shall give rise to any liability of Holder for the purchase price of any Common Stock or as a
stockholder of the Company, whether such liability is asserted by the Company or by creditors of the Company. 

        (f)    Remedies.    Holder, in addition to being entitled to exercise all rights granted by law, including recovery of
damages, will be entitled to specific performance of its rights under this Warrant. The Company agrees that monetary damages would not be adequate compensation for any loss incurred by reason of a
breach by it of the provisions of this Warrant and hereby agrees to waive the defense in any action for specific performance that a remedy at law would be adequate. 

11

 

        (g)    Successors and Assigns.    Subject to applicable securities laws, this Warrant and the rights and obligations
evidenced hereby shall inure to the benefit of and be binding upon the successors of the Company and the successors and permitted assigns of Holder. The provisions of this Warrant are intended to be
for the benefit of all Holders from time to time of this Warrant and shall be enforceable by any such Holder or holder of Warrant Shares. 

        (h)    Amendment.    This Warrant may be modified or amended or the provisions hereof waived with the written consent
of the Company and the Holder. 

        (i)    Severability.    Wherever possible, each provision of this Warrant shall be interpreted in such manner as to be
effective and valid under applicable law, but if any provision of this Warrant shall be prohibited
by or invalid under applicable law, such provision shall be ineffective to the extent of such prohibition or invalidity, without invalidating the remainder of such provisions or the remaining
provisions of this Warrant. 

        (j)    Headings.    The headings used in this Warrant are for the convenience of reference only and shall not, for any
purpose, be deemed a part of this Warrant. 

        ********************

12

 

        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:	

 
	 	 	 	
 Name:

Title:

13

 
 

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): 

[    ]
in lawful money of the United States; or 

[    ]
the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in subsection 3(d), to exercise this Warrant with
respect to the maximum number of Warrant Shares purchasable pursuant to the cashless exercise procedure set forth in subsection 3(d). 

        (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:
	 	 	 	

 
 

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. 

QuickLinks

EXHIBIT B

COMMON STOCK PURCHASE WARRANT

To Purchase ____________ Shares of Common Stock of

Sento Corporation

NOTICE OF EXERCISE

ASSIGNMENT FORMQuickLinks
 -- Click here to rapidly navigate through this document
  

Exhibit 10.20  

Silicon Valley Bank  

 
 

Amendment to Loan Documents    
    

Borrower:    Sento Corporation

                      Sento Technical Services Corporation  

 Date:            May            , 2004

        THIS AMENDMENT TO LOAN DOCUMENTS is entered into between Silicon Valley Bank ("Silicon") and the borrower named above ("Borrower"). 

        The
Parties agree to amend the Loan and Security Agreement between them, dated April 15, 2003 (as otherwise amended, if at all, the "Loan Agreement"), as follows, effective as of
the date hereof. (Capitalized terms used but not defined in this Amendment shall have the meanings set forth in the Loan Agreement.) 

        1.    Amended Schedule.    The Schedule to the Loan Agreement is
hereby amended in its entirety to read as set forth in the Amended and Restated Schedule to Loan and Security Agreement of even date herewith. 

        2.    Certain Provisions Only Applicable on Event of Default.    The
provisions of Sections 4.3, 4.4 and 4.5 of the Loan Agreement shall only be applicable after the occurrence and during the continuance of an Event of Default. 

        3.    Modification re Audits.    The first sentence of
Section 5.4 of the Loan Agreement is hereby amended to read as follows: 

At
reasonable times, and on one Business Day's notice, Silicon, or its agents, shall have the right to inspect the Collateral, and the right to audit and copy Borrower's books and records;  provided,
however, the parties contemplate that such audits will be performed no more frequently than
annually, but nothing herein restricts Silicon's right to conduct such audits more frequently if (i) Silicon believes that it is advisable to do so in Silicon's good faith business judgment, or
(ii) Silicon believes in good faith that a Default or Event of Default has occurred and is continuing. 

        4.    Delete Termination Fee.    The second and third sentences of
Section 6.2 of the Loan Agreement, which provide for a termination fee, are hereby deleted from the Loan Agreement. 

        5.    Modified Provision re Interest Computation.    The first
sentence of Section 9.1 of the Loan Agreement is hereby amended to read as follows: 

In
computing interest on the Obligations, all checks, wire transfers and other items of payment received by Silicon (including proceeds of Accounts and payment of the Obligations in full) shall be
deemed applied by Silicon on account of the Obligations on the same Business Day after receipt by Silicon of immediately available funds, and, for purposes of the foregoing, any such funds received
after 12:00 Noon on any day shall be deemed received on the next Business Day. 

        6.    Additional Definitions.    The definitions on Exhibit A
hereto are hereby added to Section 8 of the Loan Agreement in alphabetical order. 

        7.    Fee.    In consideration for Silicon entering into this
Amendment, Borrower shall pay Silicon the fees set forth in the Amended and Restated Schedule to Loan and Security Agreement of even 

1

 

date
herewith. Such fees shall be non-refundable and in addition to all interest and other fees payable to Silicon under the Loan Documents. Silicon is authorized to charge said such fees
to Borrower's loan account. 

        8.    Representations True.    Borrower represents and warrants to
Silicon that all representations and warranties set forth in the Loan Agreement, as amended hereby, are true and correct. 

        9.    General Provisions.    This Amendment, the Loan Agreement, the
Schedule, any prior written amendments to the Loan Agreement or the Schedule signed by Silicon and Borrower, and the other written documents and agreements between Silicon and Borrower set forth in
full all of the representations and agreements of the parties with respect to the subject matter hereof and supersede all prior discussions, representations, agreements and understandings between the
parties with respect to the subject hereof. Except as herein expressly amended, all of the terms and provisions of the Loan Agreement, and all other documents and agreements between Silicon and
Borrower shall continue in full force and effect and the same are hereby ratified and confirmed. 

	Borrower:	 	Silicon:
	SENTO CORPORATION	 	SILICON VALLEY BANK
	

By	
 	

 President or Vice President	
 	

By	

	

By	
 	

 Secretary or Ass't Secretary	
 	

Title	

	
Borrower:	
 	

 	

 
	SENTO TECHNICAL SERVICES CORPORATION	 
	

By	
 	

 President or Vice President	
 	

 	

 
	

By	
 	

 Secretary or Ass't Secretary	
 	

 	

 

2

 
 
 

Exhibit A
  Additional Definitions    
    

        "Closing Date" is the date of this Amendment. 

        "Contingent Obligation" is, for any Person, any direct or indirect liability, contingent or not, of that Person for (i) any
indebtedness, lease, dividend, letter of credit or other obligation of another such as an obligation directly or indirectly guaranteed, endorsed, co-made, discounted or sold with recourse
by that Person, or for which that Person is directly or indirectly liable; (ii) any obligations for undrawn letters of credit for the account of that Person; and (iii) all obligations
from any interest rate, currency or commodity swap agreement, interest rate cap or collar agreement, or other agreement or arrangement designated to protect a Person against fluctuation in interest
rates, currency exchange rates or commodity prices; but "Contingent Obligation" does not include endorsements in the ordinary course of business. The amount of a Contingent Obligation is the stated or
determined amount of the primary obligation for which the Contingent Obligation is made or, if not determinable, the maximum reasonably anticipated liability for it determined by the Person in good
faith; but the amount may not exceed the maximum of the obligations under the guarantee or other support arrangement. 

        "Indebtedness" is (a) indebtedness for borrowed money or the deferred price of property or services, such as reimbursement and
other obligations for surety bonds and letters of credit, (b) obligations evidenced by notes, bonds, debentures or similar instruments, (c) capital lease obligations and
(d) Contingent Obligations. 

        "Investment" is any beneficial ownership of (including stock, partnership interest or other securities) any Person, or any loan, advance
or capital contribution to any Person. 

        "Loan Documents" means, collectively, the Loan Agreement, the Representations, and all other present and future documents, instruments and
agreements between Silicon and Borrower, including, but not limited to those relating to the Loan Agreement, and all amendments and modifications thereto and replacements therefor. 

        "Permitted Indebtedness" is: (a) Borrower's indebtedness to Silicon under this Agreement or any other Loan Document; (b)
Indebtedness existing on the Closing Date and shown on the Schedule; (c) Subordinated Debt; (d) Indebtedness to trade creditors incurred in the ordinary course of business; and (e)
Indebtedness secured by Permitted Liens. 

        "Permitted Investments" are: (a) Investments shown on the Schedule and existing on the Closing Date; and (b) (i) marketable
direct obligations issued or unconditionally guaranteed by the United States or its agency or any State maturing within 1 year from its acquisition, (ii) commercial paper maturing no
more than 1 year after its creation and having the highest rating from either Standard & Poor's Corporation or Moody's Investors Service, Inc., and (iii) Silicon's
certificates of deposit issued maturing no more than 1 year after issue. 

        "Representations" means the written Representations and Warranties provided by Borrower to Silicon referred to in the Schedule. 

        "Subsidiary" is for any Person, or any other business entity of which more than 50% of the voting stock or other equity interests is owned
or controlled, directly or indirectly, by the Person or one or more Affiliates of the Person. 

3

QuickLinks

Amendment to Loan Documents

Exhibit A Additional Definitions

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