DOCUMENT:Q175647 09-AUG-2001 [winnt] TITLE :Event ID: 1011 Missing Library File Dfsinstr.dll PRODUCT :Microsoft Windows NT PROD/VER::4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== In Windows NT, System Logs generate the following event: Event ID: 1011 Source: Perflib The library file "dfsinstr.dll" specified for the "dfs" service could not be opened. Performance data for this service will not be available. Status code is data DWORD 0. RESOLUTION ========== Upgrade to Directory File System (DFS) version 4.1. When you upgrade, it removes the registry entries that cause this message to show up in the event log. MORE INFORMATION ================ To verify the version of your Windows NT Directory File System (DFS) installation, perform the following steps: 1. In Windows NT Explorer, right-click the Dfsadmin.exe file (or any file located in systemroot\system32\Dfs matching Dfs*.exe, Dfs*.sys, or Dfs*.dll). 2. Click Properties, and then click the Version tab. The file version displayed should be 4.10. Note: The original Directory File System (DFS) Version 4.0 has a file version mask of 5.00.14xx.1. The log entries are informational. For more information about Directory File System (DFS), see the Microsoft Internet web site at: http:/www.microsoft.com/ Additional query words: ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : :4.0 Hardware : x86 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 2001.