Sorry to steal your thunder, but there's a universal guide on how to slipstream MSPs into MSIs. But what is good is that your guide is more specific to act robat, filenames etc. Btw, not msiexec /p Acro7XX.msp /a C:\Acrobat 7\AcroPro.msi /qb! but msiexec /p "<Path_to_patch>\Acro7XX.msp" /a "C:\Acrobat 7\AcroPro.msi" /qb! W/out quotes, it won't work if there are spaces in the path to AcroPro.msi. For ppl who are wondering, if you can make an admin install w/standard edition, you can slipstream patches into it.