Yeah, but I don't want to disable them, I just want to select a different one as a default.
It's quite normal for example for a client who was once on Sybase to move on to Oracle during an upgrade. If the registry settings would force them to only select Sybase, that wouldn't work too well...
Also, I disable custom using
BTW, I noticed a small bug in 02.00 with this. Even though I have no custom, all the un-selected sections for each InstType do not show using disabled bitmaps. Therefore, the user thinks he/she can click on them, even though they can't.