Change Auditor Agent won't start after upgrade from InTrust Plug-in for File Servers.
The FSService.nptlog file may have error, "Service initialization failed: An instance already exists at this altitude on the volume specified.". The ITFA driver may have been unexpectedly left loaded in memory.
1) Ensure the InTrust Plug-in for File Servers is removed from Add\Remove programs and the service no longer exists.
2) Use the command "FLTMC Unload QFAPFLT" (without the quotes) to unload the old driver.
3) The ChangeAuditor Agent should now run successfully.