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After you install the Intel Pentium M (Centrino) driver on a computer that is with equipped with the Intel Pentium M (Centrino) processor, the ProcessorStatus class and the ProcessorPerformance class do not appear in the Windows Management Instrumentation (WMI) namespace.
Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack
To resolve this problem, apply this hotfix to prevent the WMI classes from being deleted when the driver is installed.
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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
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, contact 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:
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 hotfix 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 -------------------------------------------------------------------------- 05-Feb-2004 12:56 5.1.2600.1337 161,280 Repdrvfs.dll x86 05-Feb-2004 12:56 5.1.2600.1331 205,312 Wbemcomn.dll x86 05-Feb-2004 12:56 5.1.2600.1331 479,744 Wbemcore.dll x86 05-Feb-2004 12:56 5.1.2600.1331 259,072 Wbemess.dll x86 05-Feb-2004 12:56 5.1.2600.1337 114,176 Wbemupgd.dll x86 05-Feb-2004 12:56 5.1.2600.1337 125,440 Wmiprov.dll x86 05-Feb-2004 12:56 5.1.2600.1337 104,960 Wmisvc.dll x86 Date Time Version Size File name Platform --------------------------------------------------------------------------- 05-Feb-2004 13:12 5.1.2600.1337 608,256 Repdrvfs.dll IA64 05-Feb-2004 13:12 5.1.2600.1331 672,256 Wbemcomn.dll IA64 05-Feb-2004 13:12 5.1.2600.1331 2,076,160 Wbemcore.dll IA64 05-Feb-2004 13:12 5.1.2600.1331 1,095,680 Wbemess.dll IA64 05-Feb-2004 13:12 5.1.2600.1337 359,424 Wbemupgd.dll IA64 05-Feb-2004 13:12 5.1.2600.1337 459,264 Wmiprov.dll IA64 05-Feb-2004 13:12 5.1.2600.1337 336,896 Wmisvc.dll IA64 05-Feb-2004 12:56 5.1.2600.1331 205,312 Wwbemcomn.dll IA64
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article. This problem was first corrected in Microsoft Windows XP Service Pack 2.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products. This hotfix is intended only to prevent the WMI classes from being deleted when the driver is installed.
If your system is missing the ProcessorStatus class and the ProcessorPerformance class as a result of installing the Intel Pentium M driver before you installed this hotfix, you can run the following commands at a Windows command prompt to recover the lost classes:
Net stop winmgmtRmdir /q/s %systemroot%\system32\wbem\repositoryfor %1 in (%systemroot%\system32\wbem\*.mof %systemroot%\system32\wbem\*.mfl) do mofcomp %1Net start winmgmt
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
332179 Availability of the Windows XP Service Pack 1 driver that supports the mobile processor power management features of Intel Pentium M (Centrino) processors
824684 Description of the standard terminology that is used to describe Microsoft software updates