I don't use pmc either, though I DO use compression.  Also, I killed UAC fairly early on both Windows 7 (32-bit Pro and 64-bit Altimate) machines.  I have no use for UAC.

I've never had the problems I've read about here with UAC because I have always hated long path statements, and have always installed Poser of C:.  Seems as I recall that was a problem for one version: the SR didn't work because it couldn't find the program: C:Program Files...current owner of poserPoser ... what a mess.

Best Wishes,
Rªnce