Got event 2003 in your log files?
Got a 2003 in your event logs:
Event Type: Warning
Event Source: Perflib
Event Category: None
Event ID: 2003
Time: 10:14:02 AM
The configuration information of the performance library “C:\WINDOWS\system32\aspperf.dll” for the “ASP” service does not match the trusted performance library information stored in the registry. The functions in this library will not be treated as trusted.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Event ID: 2003 warning messages that are related to performance counters are logged in the Application log on a Windows Server 2003-based computer: