In addition to logging events in the Application Event log, Folder Redirection can provide a detailed log to aid troubleshooting. To create a detailed log file for folder redirection, use the following registry key:
Set: FdeployDebugLevel = Reg_DWORD 0x0f
Note The log file can be found at: %windir%\debug\usermode\fdeploy.log
In pre-Vista versions of Windows, doing this will create the diagnostic log file %windir%\Debug\UserMode\fdeploy.log. For Vista, 2008 and Windows 7 however, doing this simply adds more detailed info to the event log.