DOCUMENT:Q247774 24-FEB-2000 [exchange] TITLE :XADM: MSExchangeIS (306) Error in Event Log with Antivirus Use PRODUCT :Microsoft Exchange PROD/VER:winnt:5.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== When you use an antivirus program on a computer running Microsoft Windows NT Server 4.0 Service Pack 3 and Microsoft Exchange Server 5.5, the following error message may appear in the application log of Event Viewer: Event ID: 0 Source: ESE97 Category: Performance Description: MSExchangeIS (306) Unexpected Windows NT API error. 0xC000000D CAUSE ===== This behavior can be caused by a virus protection program, especially when it is not a program built to recognize Exchange Server processes. The program may install a file system filter that prevents a JET engine from addressing database files. RESOLUTION ========== To work around this behavior, use one of the two following procedures: - Remove the antivirus software, and then restart the server. (Disabling the antivirus program is not sufficient.) -or- - Install a Windows NT hotfix that is part of the roll-up hotfixes recommended in the Readme.doc file for Microsoft Exchange Server 5.5. These hotfixes are available at: ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/hotfixes-postSP3/roll-up/ NOTE: If you later reinstall Windows NT service packs, you must also reinstall the hotfixes, regardless of your responses to the Overwrite Newer Files prompts during the service pack installation. MORE INFORMATION ================ This error can occur when you install Norton NT Tools version 1.0. Disabling the Norton program does not work; you must remove it. Use of Omtool Fax Senior version 2.5 also produces this error, with an internal ID of 2030148. The hotfix noted above also corrects this problem. For additional information, please see the following article in the Microsoft Knowledge Base: Q174746 XADM: Err Msg: Unexpected NT API Error: 0xC000000D Additional query words: ====================================================================== Keywords : Technology : kbExchangeSearch kbExchange550 kbZNotKeyword2 Version : winnt:5.5 Issue type : kbprb ============================================================================= 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 2000.