The program works in XP and Vista too, it will install under Vista but not under XP as the SOS installer was built with a version 6.x inno installer compiler so requires NT 6.0 or above to be recognised as a valid win32 executable. To use this under XP just search the web for innoextractor and use that to unpack the installer and place “flister.exe” where ever you want it on your system :-)