Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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?

share|improve this question
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.

share|improve this answer
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:

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.