I did have some problems installing FSX on the new Windows 8 machine. I installed it for 'this' user only and it never showed on that user's profile, only in the 'admin' profile, so it took some fiddling to make it work. Maybe I'll delete it and do a clean install, if that 'run as admin' doesn't work and if the Weapons pack still doesn't want to work after a re-install.

What location / folder would to recommend installing FSX too ?