Did you try to install anything like Adobe Acrobat Reader 8 as Allen did and run into the same problem? It looked like a permissions problem to the legacy location for the temp directory where the installer wanted to write to. This was after I turned off UAC so don't know if that made a difference. The workaround I came up with was to open the setup.exe for Acrobat on a non-Vista system, let it write to the temp directory, then before cancelling the install, copy the unpacked files over to Vista and run the *.msi from there.
I tried to change the perms on the legacy temp directory specific to the user profile I was using (with supposedly "admin" perms on the Vista instance) but got prevented from doing so, access was denied. The question I have and I have not taken the time to go back and check, is can you change those perms before disabling UAC and then get crap like Adobe to install w/o the unpacking foolishness?
This might be similar also to as Allen reported with the printer drivers wanting UAC enabled to install. If I get time later today I'll check. I have to do my taxes so will be chained up here for a while.
BTW - I made my wife logon to Vista to try it out and she described it a as bad hallucination, the kind one gets post surgery and are on pain meds. The only thing she liked was the spinning wheel. Hmmm.
mole
_________________________
mole
Who is John Galt?