It seems the solution must be to find some code that can set the security settings on the folder BUT it sounds like you can only do that during application setup i.e. when the UAC prompt has come up during the installation and the installer is running under a higher security level.
So if you don't have an installer say, or a portal is wrapping your game, how can you change the security settings on the folder? You probably can't OR you can but each time they run the game it'll come up with the security prompt or something. You could code your game to check if the sub-folder exists and if not, prompt the user just once to boost the security level then create the folder and then for each subsequent play of the game it would be fine and not need to prompt again. God, I feel like I work in CTU in 24 with all this security level stuff! :-o
So if you don't have an installer say, or a portal is wrapping your game, how can you change the security settings on the folder? You probably can't OR you can but each time they run the game it'll come up with the security prompt or something. You could code your game to check if the sub-folder exists and if not, prompt the user just once to boost the security level then create the folder and then for each subsequent play of the game it would be fine and not need to prompt again. God, I feel like I work in CTU in 24 with all this security level stuff! :-o