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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-K/A

|                                            |  |                                                                                     
|------------------------------------------- |  | ------------------------------------------------------------------------------------
|[X]                                         |  | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|For the fiscal year ended December 31, 2000 |  |                                                                                     



OR

|                                            |  |                                                                                         
|------------------------------------------- |  | ----------------------------------------------------------------------------------------
|[  ]                                        |  | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|For the transition period from ____ to ____ |  |                                                                                         

Commission File Number 0-23373



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LANDMARK SYSTEMS CORPORATION
(Exact name of Registrant as specified in its charter)

|                                         |  |                                     
|---------------------------------------- |  | ------------------------------------
|Virginia                                 |  | 54-1221302                          
|(State or other jurisdiction             |  | (I.R.S. Employer Identification No.)
|of incorporation or organization)        |  |                                     
|                                        
|12700 Sunrise Valley Drive               |  |                                     
|Reston, Virginia                         |  | 20191-5804                          
|(Address of principal executive offices) |  | (Zip Code)                          

Registrants telephone number, including area code:703-464-1300

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act:

Title of each class

Common Stock, par value $.01 per share

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes [X]   No [  ]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrants knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to
this Form 10-K. [X]

The aggregate market value of registrants voting stock held by non-affiliates
as of March 2, 2001, was $12,162,884 based on a market price of $3.3125 per
share.

The number of shares of the registrants Common Stock outstanding as of March
2, 2001 was 12,365,411 shares.

The following document is hereby incorporated by reference into this Form 10-K:

Portions of the Registrants 2001 Proxy Statement to be filed with the
Securities and Exchange Commission (Part III).

Some of the statements in this Annual Report on Form 10-K are forward-looking
within the meaning of the Private Securities Litigation Reform Act of 1995 and
are related to anticipated future operating results. Future operating results
may be impeded by single or combined events and/or circumstances that have not
been presently anticipated. Forward-looking statements are based on the current expectations and assumptions of the management of Landmark Systems Corporation (the Company), which may be affected by a
number of factors, including, without limitation, the significant percentage of
sales consummated in the last few days of each calendar quarter, changes in the
Companys business strategy and focus, continued softness in the mainframe
enterprise software market, competitive product introductions resulting from
rapid technological advances, price competition, any failure or delay in the
Companys ability to develop and introduce new products, uncertainty of
customer acceptance of new products, seasonal factors affecting the Companys
sales, the Companys ability to attract and retain qualified technical, sales,
managerial and other key personnel, the Companys ability to manage expenses
effectively, foreign currency risk and other factors. Therefore, there can be
no assurance that actual future results will not differ materially from
anticipated results.

This form 10-K/A of the Company amends the
Companys Form 10-K filing for the year ended December 31, 2000 to update the
information contained in Item 14 to include additional exhibits required
pursuant to Item 601 of Regulation S-K and to correct typographical errors.

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PART IV

ITEM 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K.

(a)  Listed below are the documents filed as a part of this report:

1.     Financial Statements and the Independent Accountants Report:

| |                                                           
| | ----------------------------------------------------------
| | Report of Independent Accountants                         
| | Consolidated Statements of Operations                     
| | Consolidated Balance Sheets                               
| | Consolidated Statements of Changes in Stockholders Equity
| | Consolidated Statements of Cash Flows                     
| | Notes to Consolidated Financial Statements                

2.     Financial Statement Schedules:

| |                                                
| | -----------------------------------------------
| | Schedule II  Valuation and Qualifying Accounts

3.     Exhibits:

|        |  |                                                                                                                                                                                                                                                            
|------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit |  |                                                                                                                                                                                                                                                            
|Number  |  | Description of Document                                                                                                                                                                                                                                    
|        |  |                                                                                                                                                                                                                                                            
|       
|3.1     |  | Articles of Incorporation (incorporated by reference to Exhibit 3.1 forming a part of
the Companys registration statement on Form S-1 (File No. 333-35629) filed with the
Securities and Exchange Commission under the Securities Act of 1933, as amended)

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|        |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|       
|3.2     |  | Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 forming a part
of the Companys registration statement on Form S-1 (File No. 333-35629) filed with
the Securities and Exchange Commission under the Securities Act of 1933, as amended)                                                                                                                                                                                                                                                                                            
|       
|4.1     |  | Reference is made to Exhibits 3.1 and 3.2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|       
|4.2     |  | Specimen certificate of Common Stock (incorporated by reference to Exhibit 4.2 forming
a part of the Companys registration statement on Form S-1 (File No. 333-35629) filed
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended)                                                                                                                                                                                                                                                                                   
|       
|10.2*   |  | 1989 Stock Incentive Plan (incorporated by reference to Exhibit 10.2 forming a part of
the Companys registration statement on Form S-1 (File No. 333-35629) filed with the
Securities and Exchange Commission under the Securities Act of 1933, as amended)                                                                                                                                                                                                                                                                                             
|       
|10.3*   |  | 1991 Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.3 forming a
part of the Companys registration statement on Form S-1 (File No. 333-35629) filed
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended)                                                                                                                                                                                                                                                                                     
|       
|10.4*   |  | 1992 Executive Stock Incentive Plan (incorporated by reference to Exhibit 10.4 forming
a part of the Companys registration statement on Form S-1 (File No. 333-35629) filed
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended)                                                                                                                                                                                                                                                                                   
|       
|10.5*   |  | 1994 Stock Incentive Plan (incorporated by reference to Exhibit 10.5 forming a part of
the Companys registration statement on Form S-1 (File No. 333-35629) filed with the
Securities and Exchange Commission under the Securities Act of 1933, as amended)                                                                                                                                                                                                                                                                                             
|       
|10.6*   |  | 1996 Advisory Board and directors Stock Incentive Plan (incorporated by reference to
Exhibit 10.6 forming a part of the Companys registration statement on Form S-1 (File
No. 333-35629) filed with the Securities and Exchange Commission under the Securities
Act of 1933, as amended)                                                                                                                                                                                                                                                                
|       
|10.7*   |  | 1998 Employee Stock Purchase Plan (incorporated by reference to Exhibit 99 forming a
part of the Companys registration statement on Form S-8 (File No. 333-61161) filed
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended)                                                                                                                                                                                                                                                                                       
|       
|10.8    |  | Deed of Lease between Boston Properties Limited Partnership and Landmark Systems
Corporation dated January 30, 1998 as amended by a certain First Amendment to Lease by
and between Boston Properties Limited Partnership and Landmark Systems Corporation
dated as of March 30, 1998 (incorporated by reference to Exhibit 10.8 forming a part
of the Companys Form 10-K annual report for the fiscal year ended December 31, 1999
(File No. 000-23373) filed with the Securities and Exchange Commission under the
Securities Act of 1933, as amended)
|       
|10.9*   |  | Employment agreement between the Company and Frederick S. Rolandi, III dated June 2,
2000 (incorporated by reference to Exhibit 10.9 forming a part of the Companys Form
10-Q quarterly report for the quarter ended June 30, 2000 (File No. 000-23373) filed
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended)                                                                                                                                                                                                 
|       
|10.10*  |  | Registration Rights Agreement among the Company, certain Purchasers, Patrick H.
McGettigan, Katherine K. Clark and Jeffrey H. Bergman dated as of March 7, 1997
(incorporated by reference to Exhibit 10.7 forming a part of the Companys
registration statement on Form S-1 (File No. 333-35629) filed with the Securities and
Exchange Commission under the Securities Act of 1933, as amended)                                                                                                                                                       
|       
|10.11^  |  | Credit Agreement by and between the Company and Crestar Bank dated as of March 30, 1999                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|       
|10.12*^ |  | Employment Letter from the Company to Bruce E. Lovett dated April 6, 1999                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|       
|10.13^  |  | First Amendment to Credit Agreement by and between the Company and Crestar Bank dated
as of June 21, 1999                                                                                                                                                                                                                                                                                                                                                                                                                                                
|       
|10.14*^ |  | Employment Letter from the Company to James R. Bowerman dated February 25, 2000, as
revised on February 29, 2000                                                                                                                                                                                                                                                                                                                                                                                                                                         

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|       |  |                                                                                                                                                  
|------ |  | -------------------------------------------------------------------------------------------------------------------------------------------------
|10.15^ |  | Second Amendment to Credit Agreement by and between the Company and SunTrust Bank,
successor by merger to Crestar Bank, dated as of June 28, 2000
|      
|21.1^  |  | Subsidiaries of the Company                                                                                                                      
|      
|23.1^  |  | Consent of PricewaterhouseCoopers LLP                                                                                                            



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|* |  | Reflects management agreement required to be filed as an exhibit pursuant to Item 14(c) of this Form 10-K.
|- |  | ----------------------------------------------------------------------------------------------------------
| 
|^ |  | Filed herewith.                                                                                           

(b)  Reports on Form 8-K:

On December 4, 2000, the Company filed a Current Report on Form 8-K
containing a press release announcing its decision to discontinue the offering
and sale of its client/server products.

On December 7, 2000, the Company filed a Current Report on Form 8-K
containing a press release announcing a $3.5 million share repurchase program.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the registrant has duly caused this amended report to be signed on
its behalf by the undersigned, thereunto duly authorized.

LANDMARK SYSTEMS CORPORATION

|                       |  |     |  |                                           
|---------------------- |  | --- |  | ------------------------------------------
|Date: December 3, 2001 |  | By: |  | /s/ FREDERICK
S. ROLANDI, III             
|                       |  |     |  | Frederick S. Rolandi, III                 
|                       |  |     |  | Vice President and Chief Financial Officer
|                       |  |     |  | (Duly Authorized Officer)                 

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LANDMARK SYSTEMS CORPORATION
Schedule II  Valuation and Qualifying Accounts
for the Years Ended December 31, 1998, 1999 and 2000

|                             |                                        |                     |            |            |            |            |   |           |   |  |                   |            |        |  |   |           | 
|---------------------------- | -------------------------------------- | ------------------- | ---------- | ---------- | ---------- | ---------- | - | --------- | - |  | ----------------- | ---------- | ------ |  | - | --------- | 
|Col. A                       |                                        | Col. B              |            | Col. C     |            | Col. D     |   | Col. E   
|                             |                                        |                     |            |            |            |            |   |          
|                             |                                        |                     | Balance at |            | Charged to |            |   |           |   |  | Balance at End of
|Description                  |                                        | Beginning of Period |            | Operations |            | Deductions |   | Period   
|                             |                                        |                     |            |            |            |            |   |          
|Year Ended December 31, 1998 |                                        |                     |            |            |            |            |   |           |   |  |                   |            |        |  |   |          
|                             | Allowance for uncollectible accounts   |                     | $          | 620,699    |            |            | $ | 1,315,193 |   |  | $                 | (612,673   | )  (A) |  | $ | 1,323,219 | 
|                             | Deferred tax asset valuation allowance |                     |            | 454,000    |            |            |   | (5,000    | ) |  |                   |           |        |  |   | 449,000   | 
|Year Ended December 31, 1999 |                                        |                     |            |            |            |            |   |           |   |  |                   |            |        |  |   |          
|                             | Allowance for uncollectible accounts   |                     |            | 1,323,219  |            |            |   | 727,506   |   |  |                   | (1,255,405 | )  (A) |  |   | 795,320   | 
|                             | Deferred tax asset valuation allowance |                     |            | 449,000    |            |            |   |          |   |  |                   | (116,000   | )  (B) |  |   | 333,000   | 
|Year Ended December 31, 2000 |                                        |                     |            |            |            |            |   |           |   |  |                   |            |        |  |   |          
|                             | Allowance for uncollectible accounts   |                     |            | 795,320    |            |            |   | 1,137,374 |   |  |                   | (1,423,691 | )  (A) |  |   | 509,003   | 
|                             | Deferred tax asset valuation allowance |                     |            | 333,000    |            |            |   | 720,667   |   |  |                   |           | (B)    |  |   | 1,053,667 | 



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|(A) |  | Uncollectible accounts written off and sales returns
|--- |  | ----------------------------------------------------
|    |  |                                                     
|(B) |  | Change in tax valuation allowance                   

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INDEX TO EXHIBITS

|        |  |                                                                                                                                                                                                                                                                                                                                                                                                   
|------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit |  |                                                                                                                                                                                                                                                                                                                                                                                                   
|Number  |  | Exhibits                                                                                                                                                                                                                                                                                                                                                                                          
|        |  |                                                                                                                                                                                                                                                                                                                                                                                                   
|       
|10.10   |  | Registration Rights Agreement among the Company, certain Purchasers, Patrick H.
McGettigan, Katherine K. Clark and Jeffrey H. Bergman dated as of March 7, 1997
(incorporated by reference to Exhibit 10.7 forming a part of the Companys
registration statement on Form S-1 (File No. 333-35629) filed with the Securities and
Exchange Commission under the Securities Act of 1933, as amended)
|       
|10.11   |  | Credit Agreement by and between the Company and Crestar Bank dated as of March 30, 1999                                                                                                                                                                                                                                                                                                           
|       
|10.12   |  | Employment Letter from the Company to Bruce E. Lovett dated April 6, 1999                                                                                                                                                                                                                                                                                                                         
|       
|10.13   |  | First Amendment to Credit Agreement by and between the Company and Crestar Bank dated
as of June 21, 1999                                                                                                                                                                                                                                                                                         
|       
|10.14   |  | Employment Letter from the Company to James R. Bowerman dated February 25, 2000, as
revised on February 29, 2000                                                                                                                                                                                                                                                                                  
|       
|10.15   |  | Second Amendment to Credit Agreement by and between the Company and SunTrust Bank,
successor by merger to Crestar Bank, dated as of June 28, 2000                                                                                                                                                                                                                                                 
|       
|21.1    |  | Subsidiaries of the Company                                                                                                                                                                                                                                                                                                                                                                       
|       
|23.1    |  | Consent of PricewaterhouseCoopers LLP                                                                                                                                                                                                                                                                                                                                                             

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