Microsoft KB Archive/946391

= The Win32_PerfRawData_NTDS_NTDS and the Win32_PerfFormattedData_NTDS_NTDS WMI classes are not available to access the performance counters in Windows Server 2008 =

Article ID: 946391

Article Last Modified on 1/2/2008

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APPLIES TO


 * Windows Server 2008 Datacenter
 * Windows Server 2008 Enterprise
 * Windows Server 2008 Standard

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Beta Information
This article discusses a beta release of a Microsoft product. The information in this article is provided as-is and is subject to change without notice.

No formal product support is available from Microsoft for this beta product. For information about how to obtain support for a beta release, see the documentation that is included with the beta product files, or check the Web location where you downloaded the release.



SYMPTOMS
In Windows Server 2008, you try to access the performance counters through either of the following Windows Management Instrumentation (WMI) classes:
 * Win32_PerfRawData_NTDS_NTDS
 * Win32_PerfFormattedData_NTDS_NTDS

Then, you receive the following error message:

WBEM_E_INVALID_CLASS



CAUSE
This issue occurs because the WMI classes that are mentioned in the &quot;Symptoms&quot; section are not available in Windows Server 2008.



RESOLUTION
To resolve this issue in Windows Server 2008, use the following WMI classes:
 * Win32_PerfRawData_DirectoryServices_DirectoryServices
 * Win32_PerfFormattedData_DirectoryServices_DirectoryServices



STATUS
This behavior is by design.



MORE INFORMATION
For more information, visit the following Microsoft Web site:

Known Issues for Installing and Removing AD DS

Keywords: kbexpertiseinter kbtshoot kbprb KB946391

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