I was illustrating the point that AS don't make it available for certain versions of Perl on 64Bit via PPM, rather than suggesting that it wouldn't work if manually installed via cpan (by manual or automated means). I seem to reall that a first run of cpan detects the lack of dmake/MinGW and attempts to download and install them.
I'm keen to understand why OP can't install from cpan. If they're working "offline" then my suggestion won't be of much help. This is why I travel with Strawberry Perl and a minicpan mirror on my phone :)
Actually if you run the portable version of Strawberry Perl with minicpan, say on a USB drive, you could always ensure that you sync your minicpan whilst connected to a computer which allows you to connect without going through a proxy
I have been successfully doing this in a fully locked down corporate environment and it works a treat!!!