RPN software protection

[ebrionez]

Hello all,
I've read thru the posts dealing with RPN strings to create copy protection/device id and am still a little confused. could someone submit a program or example that everyone could implement in our games to prevent spreading of unathourized copies. i looked at the RPN module and tried to combine it with one of my games. everytime i clicked on the Exit function of my game, my pda would lock up. The GetUnlockKey function doesn't appear in my copy of GameEditor's built in functions. Is it a function specially built into the RPN Module? Help!
Thanks