found something here http://forums.indiegamer.com/showthread.php?t=4248
It seems there's nothing like 'windows register'; you need to manually create some hidden files somewhere like
~/Library/Preferences
~/Library/Application Support
If you have stuff that absolutely has to be global then that can go in
/Library
/Users/Shared
And to make a file hidden just use a 'point' before the name (=~/.yourcompany/yourgame/)
Never tested, but it's something in my long to-do-list
If you find another solution, please post !
[this could be ok for Linux to]
| 
