I’ve run into this twice in as many weeks, on Windows 2008 when running the ColdFusion 9.0.1 updater it will fail to complete successfully. Â Each time failing with the same message in the install log:
ANT Script Error:
Additional Notes: ERROR - cfmx-patch-move-files-all.xmlFailed to copy C:ColdFusion9libcfperfmon_9.dll to C:Windowssystem32cfperfmon_9.dll due to C:Windowssystem32cfperfmon_9.dll (The process cannot access the file because it is being used by another process)
Each time, however, I was able to simply rename the dll while ColdFusion was stopped and the upgrade continues successfully.