Event ID number 2003 is logged in the Application log after you install Windows Server 2003 Service Pack 2

The solution was found in the following article: http://support.microsoft.com/kb/932813

After installing server 2003 sp2 I got the following warning in the eventlog on a citrix server:

ERROR
Event Source: PerflibEvent Type: WarningEvent ID: 2003Description: The configuration information of the performance library "C:\WINDOWS\system32\perfts.dll" for the "TermService" 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
This problem occurs because the size and the date of the Perfts.dll file in Windows Server 2003 SP2 do not match the size and the date that were stored earlier in the registry for the Perfts.dll file .

RESOLUTION
To resolve this problem, follow these steps after you install Windows Server 2003 SP2:
1. Click Start, click Run, type cmd, and then click OK.
2. At the command prompt, type the following command, and then press ENTER.
lodctr /T:TermServiceNote
This command will modify the size and the date that are stored in the registry for the Perfts.dll file.

MORE INFORMATION
You can safely ignore event 2003. However, when this event is logged, the performance collection of Terminal Services performance counters is slightly slower than before Windows Server 2003 SP2 was installed.