Hi there,

i have an Exchange 2013 SP1 CU5 on a Windows 2012 Server in Hyper-V 2012.

i have some errors Perflib ID Event 1023, indicate a problem with the performance's counter MSExchangeIS.

I found some support to check in the registry the DLL. It seems that mdbperf.dll is not present on my systeme. I have te register this file. But i can't find the mdbperf.dll, ini .h... neither on the HDD or in the Exchange DVD.

Can you help me please, to find or extract this file?

Thanks a lot.

I have the same issue. Did you ever get this resolved?

Hello,

same problem here. The MDBPERF.DLL is missing.
It's a fresh installation of Exchange 2013 SP1 on Win 2012 R2, inside of the VM running on Hyper-V, and updated to CU7.

From time to time it generates event log warnings ID 1023:
Windows cannot load the extensible counter DLL MSExchangeIS. The first four bytes (DWORD) of the Data section contains the Windows error code.

Any suggestions?
Regards,
M.

I have the same issue as above, did you get a fix for this?

Thanks