There are links to eleventy million pages explaining how to install modules in your home dir here. Of them all, these days I recommend using local::lib. At least, I do on Unix. No idea how well it works on Windows.
in reply to Re^2: Compile portable Perl program on Windows to run on UNIX
in thread Compile portable Perl program on Windows to run on UNIX
To install without internet access you'll need to get the distribution (the Some-Module-1.234.tar.gz) file or its contents onto the machine. Untar it, then ...
Adjust as necessary for other CPAN clients. These days cpanminus is probably the best choice.
Installing dependencies can be a gigantic pain in the arse if you don't have internet access (or you don't have a copy of the CPAN already on the target machine). If you have lots of dependencies, then I suggest that you build another machine similar to the target - same OS, same word length - which could be a virtual machine on your desktop which *does* have internet access, and build all your modules there. Once that's done, copy the results to the target machine and hope for the best.