DOCUMENT:Q148846 09-AUG-2001 [winnt] TITLE :RAS Port Instance Names in Performance Monitor Are Corrupted PRODUCT :Microsoft Windows NT PROD/VER::3.51 SP2,4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation versions 3.51 SP2, 4.0 - Microsoft Windows NT Server version 3.51 SP2 ------------------------------------------------------------------------------- SYMPTOMS ======== Normally, the Remote Access Service (RAS) Port Instance names are displayed as COM1 and COM2. However, in Windows NT 3.51, Performance Monitor displays the RAS Port Instance names as "C" (without quotation marks). CAUSE ===== This problem occurs due to a change in Windows NT Service Pack 2 for ANSI formatted performance counters. This change causes a problem in the RAS counter DLL. For more information on a related problem that affects Microsoft SQL Server and Microsoft SNA Server, please see the following article here in the Microsoft Knowledge Base: ARTICLE-ID: Q133757 TITLE : Performance Monitor SQLServer-Log Object Corrupted RESOLUTION ========== To correct this problem, apply the fix mentioned below. STATUS ====== Microsoft has confirmed this to be a problem in Windows NT version 3.51. 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 3.51 perfmon counters instance names ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT400search kbWinNTW351search kbWinNTSsearch kbWinNTS351sp2 kbWinNTW351SP2 Version : :3.51 SP2,4.0 ============================================================================= 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.