IIS 7 Worker Processes – Category does not exist
In my last post, I mentioned the Internet Information Services (IIS) Manager feature called Worker Processes, and explained how you can use it to glean information into high cpu utilization for the w3wp.exe process(es) running on your server. If you followed the steps and got the following error: “There was an error while performing this operation. Details: Category does not exist.” Here is what you can do to resolve the issue.
The issue stems from the performance counters on the server being disabled. To verify – run the following at the command line,
lodctr /q:PerfProc
If you see the following,
[PerfProc] Performance Counters (Disabled)
The performance counters are not running. To activate them, run the following command,
lodctr /e:PerfProc
Once done, close any instances of the IIS Manager that you had open. Reopen IIS Manager, and you should now see the Worker Processes feature.
Thanks to the following for information about this issue:
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Pingback by w3wp.exe, welk domein gebruikt de cpu het meest – webhostingtalk.nl on November 19, 2010 4:34 pm
Hi
I got the same problem and when I run the following command:
lodctr /q:PerfProc
I saw that it has disabled so I fired the second command which is :
lodctr /e:PerfProc
I closed all IIS and reopend tham but nothing happened and I got the same error message.
did I do something wrong ?
here is a copy of my command line screen:
C:\Users\fjalali>lodctr /q:PerfProc
Performance Counter ID Queries [PERFLIB]:
Base Index: 0×00000737 (1847)
Last Counter Text ID: 0×00002BB0 (11184)
Last Help Text ID: 0×00002BB1 (11185)
[PerfProc] Performance Counters (Disabled)
DLL Name: perfproc.dll
Open Procedure: OpenSysProcessObject
Collect Procedure: CollectSysProcessObjectData
Close Procedure: CloseSysProcessObject
C:\Users\fjalali>lodctr /e:PerfProc
C:\Users\fjalali>
Comment by Farzad Jalali on September 23, 2011 10:44 am
one more thing when I run the second command , I still see that it is disabled ( so I think the second command doesn’t make it enabled )
Thanks
Farzad
Comment by Farzad Jalali on September 23, 2011 10:45 am