I have FS9 running under Windows 8, installed as follows:  C:\ Flight sims\FS9.  It's is running smoothly at 60 fps.  I want to make some changes in the FS9 config file, but I don't see the typical path for accessing the config file, ie; Users...(Name)....AppData....Microsoft....FS9.  Honestly, I have forgotten if there are hidden files involved, or other changes needed to get to the FS9 config.  Can someone refresh me on how to get into the config file?

You will more than likely need to go to your files and folders in the Control panel and uncheck Hide system files..or something to that effect.