I'm using this code in WIHU: ; Sub command 3 description.3=Office 2003 command.3= %SRCDRIVE%\Install\office\SETUP.EXE TRANSFORMS="%SRCDRIVE%\Install\office\Unattended.MST" /qb- helptext.3 = "Tekstverwerking, databases, presentaties etc." And while installing I get an error with code 1603, does anyone knows what this means, or does anyone knows how to fix this?