DOCUMENT:Q191956 29-APR-1999 [exchange] TITLE :XADM: System Attendant (Mad.exe) Stops in ScSetDeleted PRODUCT :Microsoft Exchange PROD/VER:WinNT:5.0,5.5 OPER/SYS: KEYWORDS:exc55sp2fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.0, 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== The Microsoft Exchange System Attendant (Mad.exe) stops (crashes). If you have Dr. Watson enabled, which it is by default, and you have Exchange symbols installed on the computer, the Drwtsn32.log file contains the following call stack: Function Name ------------- mad!CSecurity::ScSetDeleted mad!ScUpdateExchAdminAccountsOnRegistryKeys mad!CAdminRegTask::Work mad!CTimerTask::DwLoop mad!CTimerTask::DwLoopStatic CAUSE ===== One of the tasks of the Microsoft Exchange System Attendant is to periodically check to see whether any user accounts have been added to the Site and Configuration containers with Administrator-level permissions. If it finds this to be the case, it needs to give or take away rights to the local machine's registry for those user accounts. There was a logic error in this procedure that could cause the Microsoft Exchange System Attendant to stop responding in rare events. RESOLUTION ========== To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For more information, please see the following article in the Microsoft Knowledge Base: Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack STATUS ====== Microsoft has confirmed this to be a problem in Microsoft Exchange Server versions 5.0 and 5.5. A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next service pack that contains this fix. Contact Microsoft Product Support Services for more information. ====================================================================== Keywords : exc55sp2fix Technology : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2 Version : WinNT:5.0,5.5 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 1999.