I didn't capture the output, as it was really long. Using ppm install --force PAR
did the trick.
Incidentally, on my older machine, I've had some disk problems, and the PAR/pp wasn't working correctly. I uninstalled all the Perls, and reinstalled the latest AS Perl, then installed PAR there as well, with no problems. (One of the problems that popped up in both places before the fix was MakeMaker [I think] needing a newer version of Win32::Cwd than came with the latest PAR on CPAN.)
Quantum Mechanics: The dreams stuff is made of