"Error creating registry key:
HKEY_CLASSES_ROOT\.rpl

RegCreateKeyEx failed; code 5.
Access is denied."

I see registry key, and I'm thinking the thing that will get me the full version of the game. I bought my registry key like I should, and still have the receipt. What's goin' on, and what should I do about it?

Note: I'm given the option to continue installing, which I will do, 'cause I want me some Toribash.