DOCUMENT:Q148749 09-AUG-2001 [winnt] TITLE :Performance Monitor Error after Installing NT 3.51 SP4 PRODUCT :Microsoft Windows NT PROD/VER:3.51 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation version 3.51 - Microsoft Windows NT Server version 3.51 ------------------------------------------------------------------------------- SYMPTOMS ======== After you upgrade to Windows NT 3.51 Service Pack 4 and run Performance Monitor, the following event is logged in Event Viewer: Event ID: 1008 Source: Perflib Description: The Open Procedure for service "NwlnkSpx" in DLL "perfctrs.dll" failed. Performance data for this service will not be available. Status code returned is DWORD 0. CAUSE ===== When the NWLINK IPX/SPX protocol is installed, an Nwlnkspx.sys key gets created in the registry, and it has a Performance key under it. When Performance Monitor loads, it calls the open SPX performance procedure for Nwlnkspx.sys. The problem is that Nwlnkspx.sys is not started by default and the error above is logged. Nwlnkspx.sys gets loaded when an SPX-based application is started or NET START NWLNKSPX is issued from the command prompt. NWLNKSPX counters do not appear in Performance Monitor until it has started. Changes to Service Pack 4 appear to cause this error. They do not adversely affect the operating system in any way. WORKAROUND ========== To monitor NWLINK IPX/SPX statistics in Windows NT 3.51 Service Pack 4, type the following at a command prompt: "NET START NWLNKSPX" (without the quotation marks) NOTE: This loads the NWLNKSPX.SYS file, which is necessary to monitor the NWLINK IPX/SPX statistics. - or - Go into Control Panel, Devices and set all three of the NWLink devices to startup automatically. This will prevent the errors from being logged as the system is first coming up after a reboot. STATUS ====== Microsoft has confirmed this to be a problem in Windows NT version 3.51 Service Pack 4. This problem was corrected in the latest Windows NT 3.51 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K Additional query words: prodnt sp4 service pack ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS351search Version : 3.51 ============================================================================= 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.