EXHIBIT 10.19

GUARANTY

As of April 20, 2000, the undersigned, for value received, unconditionally and absolutely guarantee(s) to Comerica Bank ("Bank"), a Michigan banking corporation, payment when due, whether by stated maturity, demand, acceleration or otherwise, of all
existing and future indebtedness ("Indebtedness") to the Bank of Manatron, Inc. ("Borrower"). Indebtedness includes without limit any and all obligations or liabilities of the Borrower to the Bank, whether absolute or contingent, direct or indirect, voluntary or involuntary, liquidated or unliquidated, joint or
several, known or unknown, any and all indebtedness, obligations or liabilities for which Borrower would otherwise be liable to the Bank were it not for the invalidity, irregularity or unenforceability of them by reason of any bankruptcy, insolvency or
other law or order of any kind, or for any other reason; any and all amendments, modifications, renewals and/or extensions of any of the above; and all costs of collecting Indebtedness, including, without limit, attorney fees. Any reference in this
Guaranty to attorney fees shall be deemed a reference to reasonable fees, charges, costs and expenses of both in-house and outside counsel and paralegals, whether or not a suit or action is instituted, and to court costs if a suit or action is instituted,
and whether attorney fees or court costs are incurred at the trial court level, on appeal, in a bankruptcy, administrative or probate proceeding or otherwise. All costs shall be payable immediately by the undersigned when incurred by the Bank, without
demand, and until paid shall bear interest at the highest per annum rate applicable to any of the Indebtedness, but not in excess of the maximum rate permitted by law.

|1. | LIMITATION: The total obligation of the undersigned under this Guaranty is UNLIMITED unless specifically limited in the Additional Provisions of this Guaranty, and this obligation (whether unlimited or limited to the extent specified in
the Additional Provisions) shall include, IN ADDITION TO any limited amount of principal guaranteed, all interest on that limited amount, and all costs incurred by the Bank in collection efforts against the Borrower and/or the undersigned or otherwise
incurred by the Bank in any way relating to the Indebtedness, or this Guaranty, including without limit attorney fees. The undersigned agree(s) that (a) this limitation shall not be a limitation on the amount of Borrower's Indebtedness to the Bank; (b)
any payments by the undersigned shall not reduce the maximum liability of the undersigned under this Guaranty unless written notice to that effect is actually received by the Bank at, or prior to, the time of the payment; and (c) the liability of the
undersigned to the Bank shall at all times be deemed to be the aggregate liability of the undersigned under this Guaranty and any other guaranties previously or subsequently given to the Bank by the undersigned and not expressly revoked, modified or
invalidated in writing.                                                                                                                                                                                                                                                                                                                                                                          
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|2. | NATURE OF GUARANTY: This is a continuing Guaranty of payment and not of collection and remains effective whether the Indebtedness is from time to time reduced and later increased or entirely extinguished and later reincurred. The undersigned
deliver(s) this Guaranty based solely on the undersigned's independent investigation of (or decision not to investigate) the financial condition of Borrower and is (are) not relying on any information furnished by the Bank. The undersigned assume(s) full
responsibility for obtaining any further information concerning the Borrower's financial condition, the status of the Indebtedness or any other matter which the undersigned may deem necessary or appropriate now or later. The undersigned knowingly
accept(s) the full range of risk encompassed in this Guaranty, which risk includes, without limit, the possibility that Borrower may incur Indebtedness to the Bank after the financial condition of the Borrower, or the Borrower's ability to pay debts as
they mature, has deteriorated.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|3. | APPLICATION OF PAYMENTS: The undersigned authorize(s) the Bank, either before or after termination of this Guaranty, without notice to or demand on the undersigned and without affecting the undersigned's liability under this Guaranty, from time
to time to: (a) apply any security and direct the order or manner of sale; and (b) apply payments received by the Bank from the Borrower to any indebtedness of the Borrower to the Bank, in such order as the Bank shall determine in its sole
discretion, whether or not this indebtedness is covered by this Guaranty, and the undersigned waive(s) any provision of law regarding application of payments which specifies otherwise. The undersigned agree(s) to provide to the Bank copies of the
undersigned's financial statements upon request.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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|4. | SECURITY: The undersigned grant(s) to the Bank a security interest in and the right of setoff as to any and all property of the undersigned now or later in the possession of the Bank. The undersigned further assign(s) to the Bank as collateral
for the obligations of the undersigned under this Guaranty all claims of any nature that the undersigned now or later has (have) against the Borrower (other than any claim under a deed of trust or mortgage covering California real property) with full
right on the part of the Bank, in its own name or in the name of the undersigned, to collect and enforce these claims. The undersigned agree(s) that no security now or later held by the Bank for the payment of any Indebtedness, whether from the Borrower,
any guarantor, or otherwise, and whether in the nature of a security interest, pledge, lien, assignment, setoff, suretyship, guaranty, indemnity, insurance or otherwise, shall affect in any manner the unconditional obligation of the undersigned under this
Guaranty, and the Bank, in its sole discretion, without notice to the undersigned, may release, exchange, enforce and otherwise deal with any security without affecting in any manner the unconditional obligation of the undersigned under this Guaranty. The
undersigned acknowledge(s) and agree(s) that the Bank has no obligation to acquire or perfect any lien on or security interest in any asset(s), whether realty or personally, to secure payment of the Indebtedness, and the undersigned is (are) not relying
upon any asset(s) in which the Bank has or may have a lien or security interest for payment of the Indebtedness.

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|5. | OTHER GUARANTORS: If any Indebtedness is guaranteed by two or more guarantors, the obligation of the undersigned shall be several and also joint, each with all and also each with any one or more of the others, and may be enforced at the option
of the Bank against each severally, any two or more jointly, or some severally and some jointly. The Bank, in its sole discretion, may release any one or more of the guarantors for any consideration which it deems adequate, and may fail or elect not to
prove a claim against the estate of any bankrupt, insolvent, incompetent or deceased guarantor, and after that, without notice to any guarantor, the Bank may extend or renew any or all Indebtedness and may permit the Borrower to incur additional
Indebtedness, without affecting in any manner the unconditional obligation of the remaining guarantor(s). The undersigned acknowledge(s) that the effectiveness of this Guaranty is not conditioned on any or all of the indebtedness being guaranteed by
anyone else.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|6. | TERMINATION: Any of the undersigned may terminate their obligation under this Guaranty as to future Indebtedness (except as provided below) by (and only by) delivering written notice of termination to an officer of the Bank and receiving from an
officer of the Bank written acknowledgement of delivery; provided, however, the termination shall not be effective until the opening of business on the fifth (5th) day ("effective date") following written acknowledgement of delivery. Any termination shall
not affect in any way the unconditional obligations of the remaining guarantor(s), whether or not the termination is known to the remaining guarantor(s). Any termination shall not affect in any way the unconditional obligations of the terminating
guarantor(s) as to any Indebtedness existing at the effective date of termination or any Indebtedness created after that pursuant to any commitment or agreement of the Bank or pursuant to any Borrower loan with the Bank existing at the effective date of
termination (whether advances or readvances by the Bank after the effective date of termination are optional or obligatory), or any modifications, extensions or renewals of any of this Indebtedness, whether in whole or in part, and as to all of this
Indebtedness and modifications, extensions or renewals of it, this Guaranty shall continue effective until the same shall have been fully paid. The Bank. has no duty to give notice of termination by any guarantor(s) to any remaining guarantor(s). The
undersigned shall indemnify the Bank against all claims, damages, costs and expenses, including, without limit, attorney fees, incurred by the Bank in connection with any suit, claim or action against the Bank arising out of any modification or
termination of a Borrower loan or any refusal by the Bank to extend additional credit in connection with the termination of this Guaranty.
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|7. | REINSTATEMENT: Notwithstanding any prior revocation, termination, surrender or discharge of this Guaranty (or of any lien, pledge or security interest securing this Guaranty) in whole or in part, the effectiveness of this Guaranty, and of all
liens, pledges and security interests securing this Guaranty, shall automatically continue or be reinstated in the event that any payment received or credit given by the Bank in respect of the Indebtedness is returned, disgorged or rescinded under any
applicable state or federal law, including, without limitation, laws pertaining to bankruptcy or insolvency, in which case this Guaranty, and all liens, pledges and security interests securing this Guaranty, shall be enforceable against the undersigned as
if the returned, disgorged or rescinded payment or credit had not been received or given by the Bank, and whether or not the Bank relied upon this payment or credit or changed its position as a consequence of it. In the event of continuation or
reinstatement of this Guaranty and the liens, pledges and security interests securing it, the undersigned agree(s) upon demand by the Bank, to execute and deliver to the Bank those documents which the Bank determines are appropriate to further evidence
(in the public records or otherwise) this continuation or reinstatement, although the failure of the undersigned to do so shall not affect in any way the reinstatement or continuation. If the undersigned do(es) not execute and deliver to the Bank upon
demand such documents, the Bank and each Bank officer is irrevocably appointed (which appointment is coupled with an interest) the true and lawful attorney of the undersigned (with full power of substitution) to execute and deliver such documents in the
name and on behalf of the undersigned.                                                                                              
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|8. | WAIVERS: The undersigned waive(s) any right to require the Bank to: (a) proceed against any person or property; (b) give notice of the terms, time and place of any public or private sale of personal property security held from the Borrower or
any other person, or otherwise comply with the provisions of Section 9-504 of the Michigan or other applicable Uniform Commercial Code; or (c) pursue any other remedy in the Bank's power. The undersigned waive(s) notice of acceptance of this Guaranty and
presentment, demand, protest, notice of protest, dishonor, notice of dishonor, notice of default, notice of intent to accelerate or demand payment of any Indebtedness, any and all other notices to which the undersigned might otherwise be entitled, and
diligence in collecting any Indebtedness, and agree(s) that the Bank may, once or any number of times, modify the terms of any Indebtedness, compromise, extend, increase, accelerate, renew or forbear to enforce payment of any or all Indebtedness, or
permit the Borrower to incur additional Indebtedness, all without notice to the undersigned and without affecting in any manner the unconditional obligation of the undersigned under this Guaranty.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|   | The undersigned unconditionally and irrevocably waive(s) each and every defense and setoff of any nature which, under principles of guaranty or otherwise, would operate to impair or diminish in any way the obligation of the undersigned under this
Guaranty, and acknowledge(s) that each such waiver is by this reference incorporated into each security agreement, collateral assignment, pledge and/or other document from the undersigned now or later securing this Guaranty and/or the Indebtedness, and
acknowledge(s) that as of the date of this Guaranty no such defense or setoff exists.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|9. | WAIVER OF SUBROGATION: The undersigned waive(s) any and all rights (whether by subrogation, indemnity, reimbursement, or otherwise) to recover from the Borrower any amounts paid by the undersigned pursuant to this Guaranty.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

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|10. | SALE/ASSIGNMENT: The undersigned acknowledge(s) that the Bank has the right to sell, assign, transfer, negotiate, or grant participations in all or any part of the Indebtedness and any related obligations, including, without limit, this
Guaranty, without notice to the undersigned and that the Bank may disclose any documents and information which the Bank now has or later acquires relating to the undersigned or to the Borrower in connection with such sale, assignment, transfer,
negotiation, or grant. The undersigned agree(s) that the Bank may provide information relating to this Guaranty or relating to the undersigned to the Bank's parent, affiliates, subsidiaries and service providers.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|11. | GENERAL: This Guaranty constitutes the entire agreement of the undersigned and the Bank with respect to the subject matter of this Guaranty. No waiver, consent, modification or change of the terms of the Guaranty shall bind any of the
undersigned or the Bank unless in writing and signed by the waiving party or an authorized officer of the waiving party, and then this waiver, consent, modification or change shall be effective only in the specific instance and for the specific purpose
given. This Guaranty shall inure to the benefit of the Bank and its successors and assigns and shall be binding on the undersigned and the undersigned's heirs, legal representatives, successors and assigns including, without limit, any debtor in
possession or trustee in bankruptcy for any of the undersigned. The undersigned has (have) knowingly and voluntarily entered into this Guaranty in good faith for the purpose of inducing the Bank to extend credit or make other financial accommodations to
the Borrower. If any provision of this Guaranty is unenforceable in whole or in part for any reason, the remaining provisions shall continue to be effective. THIS GUARANTY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE
STATE OF MICHIGAN, WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES.
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|12. | HEADINGS: Headings in this Agreement are included for the convenience of reference only and shall not constitute a part of this Agreement for any purpose.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
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|13. | ADDITIONAL PROVISIONS: None.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|14. | JURY TRIAL WAIVER: THE UNDERSIGNED AND BANK ACKNOWLEDGE THAT THE RIGHT TO TRIAL BY JURY IS A CONSTITUTIONAL ONE, BUT THAT IT MAY BE WAIVED. EACH PARTY, AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO CONSULT) WITH COUNSEL OF THEIR CHOICE,
KNOWINGLY AND VOLUNTARILY, AND FOR THEIR MUTUAL BENEFIT WAIVES ANY RIGHT TO TRIAL BY JURY IN THE EVENT OF LITIGATION REGARDING THE PERFORMANCE OR ENFORCEMENT OF, OR IN ANY WAY RELATED TO, THIS GUARANTY OR THE INDEBTEDNESS.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

IN WITNESS WHEREOF, Guarantor(s) has (have) signed and delivered this Guaranty the day and year first written above.

|WITNESSES:              |                                                             | GUARANTOR(S): MANATRON PROVAL CORPORATION
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|                        |                                                             | GUARANTOR NAME TYPED/PRINTED             
|                        |                                                             |                                          
|/s/ Robert W. Carpenter | By:                                                         | /s/ Paul R. Sylvester                    
|Robert W. Carpenter     |                                                             | SIGNATURE OF PAUL R. SYLVESTER           
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|/s/ Joseph Zalewski     | Its:                                                        | Chief Executive Officer                  
|Joseph Zalewski         |                                                             | TITLE (IF APPLICABLE)                    
|                        |                                                             |                                          
|                        | GUARANTOR'S ADDRESS:
2970 South Ninth Street
STREET ADDRESS

| | Kalamazoo | Michigan |  | 49009   
| | --------- | -------- |  | --------
| | CITY      | State    |  | ZIP CODE