Hi, so are you opening the *.ipr files using the File -> Open dialog in the AdminStudio Author component?
I just ran I couple of tests and was able to do so...
Regarding, your conversion strategy.... are you trying to make all of you setups Windows Installer based? Is this to take advantage of other features in AdminStudio like ConflictSolver and Tuner?
Can you elaborate on your situation a bit?
Thanks,
Mike