The procedure for registration/authorization is pretty straightforward. Why you buy a legal copy of the software, you get a serial number. When you install the software on your computer, you type in the serial number. The software then gives you a 'site code' which is a long (20-odd character) hex number. You send this code to GE Fanuc by telephone, fax, or email and they run it through their key generator and send you back the corresponding authorization code which allows the software to continue running beyond the four-day trial period.
The preceeding is from my memory, and since I haven't had to register anything with GE Fanuc in the last several months, my recollection may be fuzzy.
Frankly, I don't understand Happeeman's objections to the system. However, someone who wanted to make unlimited bootleg copies of the software would be after the same sort of key generator that he's seeking. Given that, I think Happeeman can understand why I'm sceptical about the purity if his motives.