Your Windows Server 2003 Application event log has several Event ID 2003 warning messages related to performance counters, like:
The configuration information of the performance library "C:\WINDOWS\system32\w3ctrs.dll" for the "W3SVC" service does not match the trusted performance library information stored in the registry. The functions in this library will not be treated as trusted.
These warning events are for information purposes and can be safely ignored.
If you wish to prevent some of these warning messages:
1. Open a CMD.EXE window.
2. Type unlodctr <ServiceShortName> and press Enter, where <ServiceShortName> is the service name, like W3SVC.
3. Type lodctr <IniFile> and press Enter, where <IniFile> is the .ini file for the driver that you wish to reload, like C:\WINDOWS\system32\inetsrv\w3ctrs.dll, determined from the Library Value Name at the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W3SVC\Performance key.