by Sean_TK » Fri Jan 02, 2009 12:23 pm
The root folder is the main FS9 folder. My directory to the root folder looks like this:
D:\Program Files\Microsoft Games\Flight Simulator 9
The folder titled Flight Simulator 9 is the root folder.
Beyond that, if I were you, to make sure that the addon does not unnecessarily overwrite anything, I would just extract it to a temporary folder on your desktop, and manually install the aircraft.