I have been playing with this for a while and I have read that it won't work with the unattended.mst file from RunOneEx.cmd it you leave the source on the DVD vice having it copied to the %systemdrive% Although, I can get it install this way with several commandlines REG ADD %KEY%\090 /VE /D "Office 2003 Premium w/SP1" /f REG ADD %KEY%\090 /V 1 /D "%cdrom%\APPS\Office2003SP1\PRO11.msi /t unattended.mst /qb" /f [/QUOTE] or [QUOTE] REG ADD %KEY%\090 /VE /D "Office 2003 Premium w/SP1" /f REG ADD %KEY%\090 /V 1 /D "%cdrom%\APPS\Office2003SP1\setup.exe /qb" /f Both of these seem to work for me. This might work for you as well. Just modify the path to your install method.