The code supplied with the CD version is for activating FSX not FSX:Steam Edition. If you own the boxed edition of Microsoft Flight Simulator X and you need help please contact Microsoft directly.
Their primary support area for FSX is [support.microsoft.com]. Originally posted by thubble9:hi i have brought flight simulator x and put the activation code in and it just says code not vaild please can some one help me After you install the FSX box version there is a file in the root folder named Phone Activation.xml Locate this file and open with notepad. In the list there are 230 Phone Activation Contact Locations so find your Country and call the phone number that is listed. Be at your computer with the FSX activation window open so you can give the activation support group your code. DO NOT call Microsoft Support since they can not access any of the activation records. If by chance you are in Korea the phone number for Korea does not appear correctly in the Activation List.
The Korean product activation number is: Korea: Toll=1577-9700 (Nation wide local toll only); +82 (2) 567-7881 As stated above you bought the FSX box version. The code supplied with the CD version is for activating FSX not FSX:Steam Edition.