Nope. My registration is a legitimate one that I purchased in 1998, and if I remember correctly the format on that code doesn't even work on newer versions. I think when I did try a newer version I ...
I used to MUD quite a bit and used zMUD 5.5 up until last year, I've apparently lost my copy of it. Does anyone have a copy of, or know where I can get a copy of zMUD 5.5?