DirectX is installed incorrectly on your computer

Applies to: Microsoft Flight Simulator X Deluxe EditionMicrosoft Flight Simulator X Standard EditionMicrosoft Age of Empires III


When you start one of the games that are listed in the "Applies to" section, you may receive an error message that states one of the following things:
  • The game requires a later version of Microsoft DirectX.
  • One of the DirectX files was not found.
  • You receive the following error message:
    Game cannot run because the version of Microsoft DirectX installed on your computer is incompatible. Please reinstall DirectX 9.0 by running Game Setup, or download the current version from


To resolve this issue, download and install the latest version of DirectX. For more information about how to obtain the latest version of DirectX, click the following article number to view the article in the Microsoft Knowledge Base:
179113 How to download and install DirectX