heres a quick batch to compress the files and delte the old change the directory you have the files in... @echo off cd\location_of_nlited_windows_files\i386 makecab intl.inf intl.in_ makecab ntprint.inf ntprint.in_ makecab DBGHELP.DLL DBGHELP.DL_ makecab ntdll.dll ntdll.dl_ makecab imagehlp.dll imagehlp.dl_ makecab exts.dll exts.dl_ makecab regedit.exe regedit.ex_ del /Q /F intl.inf del /Q /F ntprint.inf del /Q /F DBGHELP.DLL del /Q /F ntdll.dll del /Q /F regedit.exe del /Q /F exts.dll del /Q /F imagehlp.dll del /Q /F SP2.CAT del /Q /F ntprint.cat exit all you need to do is make 2 blank files one called SP2.CAT (thats if you integrate SP2) and one called ntprint.cat