If you attempted to enter a product key from another box, FSX would not install. This is because the Product Key numbers themselves are within the installation program on the CD's. (It's Microsoft's way to prevent illegal pirating & copying)
Buy the dam game.
In the box on a yellow label insert the code in FSX where it asks you to and you're good to go. You need an Internet connection to setup the key.
Its Ctrl+ fullstop (period)
A product key is a key that enables you to "unlock" a demo of a game or other piece of software...If you want to know the code for FSX, buy a copy of it at retailers (Walmart, Best Buy, Target and other big retailers) if you have a copy of it already open the case and look on the bottom of the right side....Your key should be right there.
Fsx in just one game where as FSX Gold is Fsx deluxe with the addon pack Fsx acceleration
it might already be in use else where (pirated copy) it might have been entered incorrectly - it might be for one of the other fsx addon platforms
i think you can use it 3 times
You can get FSX on your PC by having the 2 CD's that install FSX.
you can get the twin towers into fsx by downloading it or setting the settings for fsx to realistic
press and hold the f2 key on your keyboard, to deactivate the reversers add a little throttle.
Easy. Press /. That is the default spoiler key but it won't effect the X-Wing.
to get stairs in fsx you need to press shift+2+3