ive tried with that too, [CDImage] HKCR,"Folder\shell\MakeBootISO\command",,,"CDIMAGE.EXE -L"%label%" -h -j1 -m -o -B%11%\xpBoot.img %here% %target%" HKCR,"Folder\shell\MakeDataISO\command",,,"CDIMAGE.EXE -LDATA -YD -N -H -X -O -M -D %here% %target%" [Strings] here = """%1""" target = """%1.iso""" label = """%1:~3%""" returns G:\nlite XP~3