I had to install Template-Toolkit on an NT machine a few weeks ago. There's no ppm bundle for it, but I was able to download the tarball from the CPAN, unbundle it, and just put the .pm files in a directory of my choosing.

With a simple use lib "e:/perl/extralib/"; statement, things just worked.

This works on modules that don't have XS components -- that is, they're written in straight Perl that doesn't have C or other code that needs to be compiled. Your mileage may vary.