How to Load and Unload Performance Counters

Issue:

You receive the following event in event viewer

Source: Perflib

Event ID: 2003

The configuration information of the performance library "C:\WINDOWS\system32\xxxx.dll" for the "ServiceName" service does not match the trusted performance library information stored in the registry. The functions in this library will not be treated as trusted.

Cause:

The performance information on the registry has been corrupted or deleted.

Solution:

You should unload and then load the affected performance counters to update the registry with the correct information.

On the affected computer perform the following

1)      Open Regedit

2)      Goto: HKLM\System\CurrentControlSet\Services\ServiceName\Performance

a.       Where ServiceName is the name given in the Event ID 2003 description.

3)      Locate the PerfIniFile Key and record the setting

a.       Example: tslabels.ini is the TermService PerfIniFile setting.

4)      Open a Command Prompt

a.       Start…Run...CMD

b.      Unload the current counters for the affected ServiceName

                                                               i.      Type: unlodctr ServiceName

c.       Load the correct counters for the affected ServiceName

                                                               i.      Type: lodctr PerfIniFile

                                                             ii.      Where: PerfIniFile is the file name retrieved from the PerfIniFile registry setting earlier.