ICM v8.5 Upgrade Locked DLLs

Question

I'm trying to upgrade one of my lab ICMs from 8.0.1 to 8.5, and the upgrade fails each time complaining of a running executable.  The install log shows the following DLLs locked:
Locked file: C:\icm\bin\CampaignManagerPerf.dll
Locked file: C:\icm\bin\CTISVRPerfmonObjectDLL.dll
Locked file: C:\icm\bin\DialerPerf.dll
Locked file: C:\icm\bin\EapimPerfCounters.dll
Locked file: C:\icm\bin\ImportPerf.dll
Locked file: C:\icm\bin\LoggerPerf.dll
Locked file: C:\icm\bin\OPCPerfmonObjectDLL.dll
Locked file: C:\icm\bin\RealTimePerf.dll
Locked file: C:\icm\bin\VRUPIMPerfCounterDLL.dll
Found a similar thread here which indicated that the SNMP service was the culprit, but in my case, all efforts to start/stop/manual/disable the SNMP service have no effect on the error.  Is there any other service that can lock these DLLs?  There is no third party software on this box, and I ran an identical upgrade on it's paired server which ran flawlessly.  Attached is a screenshot of all active services on the problem host.

Answer 1

You can also use the process explorer, to find out which process is blocking that dll,
For your reference below the link to download
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
Once you install it in the menu options click find Find handle or Dll enter the dll name
and search it will show you what process is using that dll kill the process and run the
install.