have you missed the past, i dont know, 10yrs or so? lol.
vdspro will do it from a bootable dos disc and db9 cable or theres a windows based app that will do it using a kkl cable.
heres the windows based app, it only works on certain modules, basically only mk4s.
http://uk-mkvs.net/topic/83463-guide-remote-windows-activation/vdspro will work with any flavor, mk4 or b5.
there should also be a massive thread on tdiclub regarding vds pro and loads of information. its from 2006ish maybe or so i think was when it was started.