The RVM Integrator was created by picking the mind of RyanVM of msfn.org. It allows you to actually slipstream windows hotfixes and third party software directly into a windows install disk. This is unlike any other software out there that claims to do this. It allows advanced users to create simple UpdatePack/Addons for others to use to slipstream things to their disks.
Well, if MS doesn't mind and if its not illegal, setup.exe can be modified with Res-hack to link to wpi.hta in WPI\Install\ folder of uacd. Thatway, you can launch wpi or anything for that matter in the XPCD.
What do you think of adding a tab in the integrator just for the driverpacks? Its great that you can run it through the advanced tab but i find i'm not using it because i have to come back here to find out what to put in the parameter box.
if the DP had its own tab you can point it just to the exe & ini like in powerpacker?