System Monitor Does Not Collect Data for All Instances of a Process When Started with the WMI Command-Line Option

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Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

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If you start System Monitor (Perfmon.exe) using the /wmi command-line option, data is logged only for the first instance of the process. When you try to collect data from a process that has multiple instances, every instance is identified as the first instance, and the same data is logged for every instance.

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

Hotfix information

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.


To install this hotfix for Windows 2000, you must first have installed Windows 2000 Service Pack 2, Service Pack 3 or Service Pack 4.

To install this hotfix for Windows XP, you must first have installed Windows XP Service Pack 1.

Restart requirement

You do not have to restart your computer after you apply this hotfix. However, you must stop Performance Monitor before you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

Windows 2000

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   --------------------------------------------------------------   01-Aug-2003  18:40  5.0.2195.6797     152,336  Pdh.dll             15-Jul-2003  22:08  5.0.2195.6776   4,858,368  Sp3res.dll      
Windows XP

After the hotfix is installed, the following files will have the listed attributes or later:
For x86:   Date         Time   Version            Size    File name   --------------------------------------------------------------   07-Aug-2003  20:01  5.1.2600.1255     255,488  Pdh.dll        For ia64:   Date         Time   Version            Size    File name  Platform   ------------------------------------------------------------------   07-Aug-2003  19:29  5.1.2600.1255     830,464  Pdh.dll    IA64   07-Aug-2003  20:01  5.1.2600.1255     255,488  Wpdh.dll   X86
To work around this issue, start System Monitor without the /wmi command-line option.

Note If you use this workaround, you cannot use a Windows Management Instrumentation (WMI) interface.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.
More information
If you start System Monitor using the /wmi command-line option, System Monitor obtains performance data using WMI instead of the registry.

For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
816915 New Naming Schema for Microsoft Windows Hotfix Packages

Article ID: 825882 - Last Review: 01/12/2015 22:16:18 - Revision: 4.0

Microsoft Windows XP Professional, Microsoft Windows XP Home Edition, Microsoft Windows 2000 Server, Microsoft Windows 2000 Professional Edition, Microsoft Windows 2000 Advanced Server

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