Nuhi - posted this in an older thread - the nlite under vista problem - don't know if the event log entry any use:- I'm getting this problem too. When trying to insert a patch - select one from where they're stored and get message nlite has stopped working. Event log shows:- Faulting application nLite.exe, version 1.3.9.0, time stamp 0x466fbce4, faulting module ntdll.dll, version 6.0.6000.16386, time stamp 0x4549bdc9, exception code 0xc0000374, fault offset 0x000af1c9, process id 0x670, application start time 0x01c7f6b1e78d2c38. Running nlite 1.4 beta on Vista Ultimate. Have tried running nlite as Administrator too - same.