SMS: The SNMP Extension Agent May Conflict with the Windows NT SNMP Extension Agent (810794)


The information in this article applies to:

  • Microsoft Systems Management Server 2.0
  • Microsoft Systems Management Server 2.0 SP1
  • Microsoft Systems Management Server 2.0 SP2
  • Microsoft Systems Management Server 2.0 SP3
  • Microsoft Systems Management Server 2.0 SP4
  • Microsoft Systems Management Server 2.0 SP5

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SYMPTOMS

If you run both the Systems Management Server (SMS) SNMP extension agent (Snmpelea.dll) and the Microsoft Windows NT SNMP extension agent (Evntagnt.dll) spurious events may be recorded. These events include:
Event 1025 - Unable to load PrimaryModule Application. LoadLibrary returned 126.

Event 6002 - Mutex object could not be released. Reason code is 288. Trap may not be sent.
These events do not affect the operation of either extension agent, but may cause unnecessary alerts to be triggered if monitoring for errors is occurring.

CAUSE

Event 6002 occurs because the SMS SNMP extension agent and the Windows NT SNMP extension agent share a mutex. Both agents use the same named mutex and both agents serve the same purpose.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next SMS 2.0 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. 
   Date         Time   Version        Size     File name         Platform
   ----------------------------------------------------------------------
   11-Dec-2002  12:24  2.0.4.1        243,297  Q810794.exe      
   01-May-2002  18:25                      67  Compversnmpelea.ini  
   01-May-2002  18:25  2.0.1493.4169  245,008  Snmpelea.dll         Alpha
   01-May-2002  18:25  2.0.92.9       800,131  Stsinstl.exe         Alpha
   01-May-2002  18:25                      67  Compversnmpelea.ini
   01-May-2002  17:10  2.0.1493.4154  830,224  Preinst.exe          x86
   01-May-2002  18:25  2.0.1493.4169  158,032  Snmpelea.dll         x86
   01-May-2002  18:25  2.0.92.9       437,854  Stsinstl.exe         x86
Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.

MORE INFORMATION

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk. To prevent the 6002 events, disable one of the extension agents.

To disable the Windows NT SNMP agent, change the following key to refer to Snmpelea.dll (the SMS SNMP extension agent) instead of Evntagnt.dll:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SNMP_EVENTS\CurrentVersion\Pathname

After you make this change, stop and restart the SNMP service to prevent additional 6002 events.

Note You must disable one of the agents to prevent the 6002 events, whether or not you use the hotfix that is described in this article.
Modification Type:MinorLast Reviewed:4/14/2006
Keywords:kbQFE kbHotfixServer kbSMS200preSP6fix KB810794
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