|I'm a bit shocked here. You have been waiting something like four years to go from Radmin 2.2 to Radmin 3.0 ... Radmin 3.0 is really still not out since the keys are not yet available... and you are talking about Radmin 4.0?
Lets be a bit realistic.
In my case, I'm rapidly getting anxious about not having the key for Radmin 3.0. I had a chance to put Radmin 3.0 on it on Friday, but I had to give up that chance because no key was available even though Radmin 3.0 final is out. Close but no cigar. Now I'm going to have to tell a pack of lies to try and get access to that computer again.. which I would easily had access to 3 days ago.
BTW, if you cannot physically access the server computer in order to register it, you may try to use "license code transfer' feature in Radmin Viewer. Right click on the connection icon in the phonebook and you will see the item in the context menu. The feature lets you activate Radmin Server remotely from Radmin Viewer.
Let me know if that suits your situation.