WMI Returns a Generic Event Instead of a Specific Trap

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This article was previously published under Q255161

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SYMPTOMS

Windows Management Instrumentation (WMI) may return a generic Simple Network Management Protocol (SNMP) event instead of a specific event.

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Some SNMP agents may place null values in SNMP variables for a trap, even though the value is out of range as defined for the variable in the SNMP Management Information Base (MIB). For example, the variable may support values from 1 to 255. This is a problem in the agent because it is populating the trap with invalid data. The correct behavior, if one or more properties contain valid data, is to ignore the agent errors and send the specific WMI event. If all of the properties in the trap contain invalid data, a generic event should be sent. Because of a problem in the provider, in some cases (even when some of the data is valid), a generic event is sent instead of the specific WMI event.

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RESOLUTION

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

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

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. The English version of this fix should have the following file attributes or later:

   Date      Time     Version       Size    File name   
   -----------------------------------------------------
   02/25/00  3:50:10  1.50.1085.17  496 KB  Snmpincl.dll

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