Hi, The following error always cause the clients cannot access the web site database again. How to solve the problem?- System - Provider [ Name] Microsoft-Windows-Perflib [ Guid] {13B197BD-7CEE-4B4E-8DD0-59314CE374CE} [ EventSourceName] Perflib - EventID 1017 [ Qualifiers] 49152 Version 0 Level 2 Task 0 Opcode 0 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2009-12-17T01:34:02.000Z EventRecordID 7321 Correlation - Execution [ ProcessID] 0 [ ThreadID] 0 Channel Application Security - UserData - EventXML param1 BITSThanks a lot!

Hi There,Thank you for posting in windows server forums,Can you please take a look at the below article and let us know if it helped you.http://technet.microsoft.com/en-us/library/dd363722(WS.10).aspx

Thanks Sainath.I have read that article. But actually I don't know how to find out the error that force the performance counter to be disabled. I have tried to reenable the performance counter from regedit, but it disable again.

Hello Deadfishhhhh,Please try to removed the following registry key to see if it helps.HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RemoteAccess\Performance --> the Performance Subkey which might have got corrupted due to very old version of the %SystemRoot%\System32\rasctrs.dll.Note: Please export the registry before you remove it.Best Regards,Wilson JiaThis posting is provided "AS IS" with no warranties, and confers no rights.

Thanks Wilson, I have tried to remove the registry, but the same incident occurs. This error always occurs when I access a .mdb file from a client computer through the share folder. Any other possible solution I can try? Thanks.