With the reconfigure program CPAN installs modules that have no, or small amounts, C++ compiling required. That's not quite true, it installs those modules that only require the libraries that are already installed with the minGW distribution included in Strawberry Perl. So the comliling and linking could be extensive, but has to stay within these 'standard' libraries.
It also has problems with modules that have non-standard Makefile.PL scripts, especially ones that need extra command line arguments or hard coded file locations (eg. XML::Parser looks for eXpat in a version specific location on the C: drive, or requires flags passed to dmake). I also need to figure out if I need to incorporate the libraries from the Windows Platform SDK or Visual Studio (indications say yes).