Performance Monitor may display some data incorrectly when you use saved chart settings from the .pmc files to view the data logged in the Perfmon log files. If you open the Perfmon log file in Performance Monitor and the saved chart settings are loaded from a .pmc file with the counters from multiple computers (servers), Performance Monitor may show some of the counters with zero data, instead of showing the data that was collected in the log file.

Performance Monitor always shows correct data for all the counters from the computer whose data is first logged in the Perfmon log file. In addition, if you manually add the counters (rather than from the .pmc file), Performance Monitor shows the correct data values and works as expected.

In some cases you may receive a Dr. Watson event message when you try to view the .pmc file. The Dr. Watson Log file may show the following information:

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When you use saved chart settings from .pmc files to view data that is logged in the Perfmon log files, Performance Monitor reads the system name for the counters saved in the .pmc file and tries to retrieve the data from the log file for that system counter. Because Performance Monitor always searches for counter data in the first computer's logged data (rather than the corresponding computer's logged data in the log file), it does not retrieve correct data for counters other than the counters for the system whose data is first logged in the log file.

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A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site: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-language version of this fix should have the following file attributes or later:

   Date        Time        Size       File name     Platform
   ---------------------------------------------------------
   04/25/2000  05:00 PM    186,128    Perfmon.exe   I386
   04/25/2000  04:59 PM    293,648    Perfmon.exe   Alpha
				

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Microsoft has confirmed that this is a problem in Windows NT 4.0.

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