Okay! I have finally been able to register the ocx file successfully. And when i start Spawn Editor 2, i get the setup dialog fine. But when i push the ... button next to the "RunUO.EXE" box, to locate the RunUO client, and even the ... next to the Ultima Client i get the following error...
http://starportal.allsoftstudios.com/se2_error.jpg
And since i can't type the path in manually, i am out of options. Is this something you can do anything about, or do i have to wait until Vista gets released before you can figure out whats wrong?
Hoping for the best

I can allways use my dual boot XP install when working with Spawn Editor 2, but would be nice to get it working with Vista.
PS. I have v1.1, 2.0 and 3.0 of the .NET framework installed.
PPS. I have also run the app in all available compatibility modes, with no change.