DOCUMENT:Q216035 16-MAY-2002 [winnt] TITLE :Invalid FPNW Parameters May Cause AV in Lsass.exe and Usrmgr.exe PRODUCT :Microsoft Windows NT PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS:kbWinNT400sp5fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Lsass.exe and Usrmgr.exe may fail if one or more of the user parameters for the File and Print Services for NetWare (FPNW) service are invalid or corrupted. CAUSE ===== When FPNW is installed on a domain controller and the "Maintain NetWare Compatible Login" option is selected in a user's profile, various parameters are enabled such as Grace Login Limit, Concurrent Connections, among others, for the user. If any of the parameters become corrupted, both Lsass.exe and Usrmgr.exe may fail. Lsass.exe is the service responsible for all domain related functions, such as user logon validation and user account management. If Lsass.exe fails, all domain related requests to the server will fail. When an account with corrupted or invalid data is processed, Lsass.exe may have an access violation or it may enter an invalid state and be unable to process any requests. A Drwtsn32.log file will be generated if Lsass.exe has an access violation. When Usrmgr.exe fails, it will terminate immediately and generate a Drwtsn32.log file. RESOLUTION ========== To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to: - http://www.microsoft.com/Windows/ServicePacks/ -or- - Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS STATUS ====== Microsoft has confirmed this to be a problem in Windows NT Server 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5. Additional query words: 4.00 ====================================================================== Keywords : kbWinNT400sp5fix Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : winnt:4.0 Hardware : ALPHA x86 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.