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I need to extract the ASPNET\Requests Queued performance counter from some IIS servers via WMI.

The WMI class for this sort of thing appears to be contained in Win32_PerfFormattedData_ASPNET_ASPNET. I've queried all available classes in root\cimv2 on my Win 2003/IIS6 servers, and it's not listed.

It is, however, available on an unrelated Win2008/IIS7 box (which is interesting but doesn't really help me much). I can view these counters in PerfMon without any issues.

What gives? Why is this WMI class not available on my Windows 2003 servers?

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2 Answers 2

up vote 0 down vote accepted

Check the following registry keys and ensure "Disable Performance Counters" is either not present, or set to 0:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ASP.NET\Performance\Disable Performance Counters
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ASP.NET_2.0.50727\Performance\Disable Performance Counters
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ASP.NET_64\Performance\Disable Performance Counters
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ASP.NET_64_2.0.50727\Performance\Disable Performance Counters

If you have a 32-bit OS, only the first two keys will be present. If you have a 64-bit OS, all 4 keys will be present.

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Great suggestion but I have tried both zero'ing those keys and deleting them altogether with no result. Also I – Nexus Apr 20 '10 at 23:24
Does the performance counter show up in perfmon? – JohnW Apr 21 '10 at 1:32
Yes, all ASP.NET and ASP.NETv2 counters are available in perfmon. – Nexus Apr 21 '10 at 22:57
I would recommend the wmi diagnosis utility for win2003:… – JohnW Apr 22 '10 at 1:50

I found an excellent msdn blog article which helped me:

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