I am try to do a custom 7 instalation with WPI, bu i don't no why programs .exe work and .msi don't In my XP custom i put the following command in in Runoce, and work great: "%systemroot%\system32\msiexec.exe /i %CDROM%\WPI\Install\AdobeReaderX\AcroRead.msi TRANSFORMS=AcroRead.mst /qb REBOOT=ReallySuppress" /f How to do this with WPI???????? Forget! Now work, i changed the application's path after editing the WPI.