Yes I am hosting on a W2K server. It is running ok, but there are glitches. Such as that I cannot set the administrator password or add new users, no matter what I try. The session folder is writeable, I checked that, but whenever I try to set the admin pw or add a new user, I am confronted with a blank page.
There is also a glitch with importing large quantities of events. I also get a blank page there, but that might be solved by upping the max runtime for CGI scripts, I am told. Looking into that right now.