Perflib error each 15 to 20 seconds

Hi

I have a Compaq proliant server running W2k SP2.

Since a couple of days I’am receiving the followiing error each 15 to 20 secconds.

The error seems not to overload the server. I’ve looked onto Microsoft pages but I couldnt find anything.

What does the “NBF” Service is?
Does anyone can help me?

Regards

Alvaro Cornejo

Event Type: Error
Event Source: Perflib
Event Category: None
Event ID: 1008
Date: 11/07/2001
Time: 18:39:43
User: N/A
Computer: HOMESERVER
Description:
The Open Procedure for service “Nbf” in DLL “C:\WINNT\System32\perfctrs.dll” failed. Performance data for this service will not be available. Status code returned is data DWORD 0.
Data:
0000: 02 00 00 00 ….