HAY!
If you look at the command help texts map -help etc, you will see that the author has a path..... that does not include "program files". Thus... eliminating the problem of program files in the command line.
He runs flightgear off the root drive, not nested in sub-directories. This is a practice I have not seen since the old Dos days. I have followed this not only with Atlas, but with scenery and Fgcom.
Works fine, and if I have to replace Flightgear or what ever, it makes for a cleaner sweep.
FWIW
Prime example of what happens when you put a monkey in a capsule full of buttons and switches...Now, wheres that damn banana?...