We have a game that writes and reads external files to a sub-folder of the game folder. This works perfectly under XP, however some vista systems don't like us using this sub folder, even with admin rights. We get the E1514 error which means it didn't get a file handle when try to write to the file.

What are the rules with Vista and where you can and can't write files to?

What is the safest way to do this so it will work on all systems.

I'm thinking write them to the game folder in the published version.

Thanks in advance.