Any hint will be appreciated!

I guess your question is "Installing modules on windows using strawberryperl and CPAN without internet connection?"

Its all about cpan configuration

One option configure cpan to use the internet ...

Another is to carry the CPAN with you ... minicpan ... then tell cpan to use your local minicpan mirror

Also use Portable strawberryperl release ... its like perl on a USB stick, its Portable