Sorry, I skipped this step in my original post. If I open a new mingw32 GitBash window, carefully pre-pend PATH to include the two perl64 locations and not set PERL5LIB, my results are: 
$ ppm
Can't locate ActivePerl/PPM/limited_inc.pm in @INC (@INC contains: /us
+r/lib/perl5/5.8.8/msys /usr/lib/perl5/5.8.8 /usr/lib/perl5/site_perl/
+5.8.8/msys /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl .)
+ at /c/prog/Perl6/bin/ppm line 4.
BEGIN failed--compilation aborted at /c/prog/Perl64/bin/ppm line 4.

[download]

This is when I started feeling horrified that ppm, installed with 5.12 dist, somehow finding 5.8 libraries that I personally didn't directly install, in useful directories (/usr/lib/). I can't seem to find the rules for how @INC hardcodes(?) library paths?

Thanks for your time. I really appreciate it.
-pamela

In reply to Re^4: 2 perl distributions on Windows 7 by Anonymous Monk
in thread 2 perl distributions on Windows 7 by Anonymous Monk

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