This has to be one of the most jaw-dropping threads I've ever seen on Perlmonks. Had the OS been some sort of Linux, and the vendor was some Linux vendor, the response would have been get yourself a C compiler and learn how to use CPAN.
Instead of skimming the thread, may I recommend reading it? This has been repeatedly discussed.
And do you want a job in our support department telling our thousands of Windows users how to install a C compiler, nmake, configure CPAN, and install the necessary modules they need/want? And in the unlikely event they make it past all of that, are you also willing to take all of the support calls you'll get when a module fails to install but the customer thinks it's our fault because we provide the dedicated server, rather than the module author's fault? People who get a *nix server from us generally have a better understanding of technical issues involved but the Windows folks don't.
I can't tell you how many Windows servers we have (not allowed) but we're the largest hosting provider in the United Kingdom and many of our customers aren't programmers and don't want to be programmers. They just want to install a bulletin board, maybe some blog software, or something similar. They're consumers, not developers, and if they choose Windows, they're used to just installing stuff and forgetting about it.