I just checked the files on my comp... yeah it seems that "Deepz0ne" is in there... too funny... but what if "Deepz0ne" is the name of who it's registered to and that same guy is now working for MS - wouldn't surprise me as hacking is a pretty common way of learning amongst programmers good and bad...
Let's have someone with SF4.5 confirm this, as it should be easy enough to prove...