Markoz wrote on May 15^th, 2014 at 7:00am:

What operating system are you using? Vista, Windows 7, or Windows 8/8.1? ...

Thanks for your help! actually the 777 is working now on the FSX, it's not working before because of I haven't install the acceleration pack CD, So the the plane is missing in the menu. But seems now the second problem, when I after install the acceleration pack, there's no ways that I can use my product key with the acceleration pack and the game supposed I'm play the trial version, after that when I play with the 777 maybe about 20 mins, then the game text me the time limit has expired and need me to activate it to continue. Do you know what is happening?  :-[

I'm using Window 8 with 64 bit  ;)

Thanks much!