I am currently building my own slipstreamed Windows XP Pro CD, using this guide on MSFN.org. I have reached the point where you can integrate a silent install of Office XP into the installation of Windows, but I have a problem. It appears you can't silent install and/or slipstream Office XP, you need the Enterprise edition for that and I have the retail version (PRORET.msi). But I am sure there must be some way of doing it? My search on the internet and newsgroups has provided me with no solution or answer so far.