If I understand correctly you have an unattended CD. You would like to add Office to it as well, but you do not want the whole installation folder of Office to be copied to the hard disk first like with $OEM$, before starting the automatic installation. You could add a folder to your unattended CD and use RunOnceEx to install Office silently directly of your unattended CD. For a short guide on RunOnceEx, click here. My english is bad, i speak spanish, but you understand me, well i not understand RunOnceEx, i find more information. Thanks.