Connecting to FSX

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Air Navigation Pro gives the possibility of using all its features with MS Flight Simulator X (FSX).


In order to do this, follow these steps:

  • Make sure to save the “Acceleration” pack installed with FSX (or instead the SP1 and SP2, that you can get from the internet).
  • Download and install the plugin from the Addons tab of our site:

If having issues while installing it, run the icon as “Administrator” (right-click on it)

  • Download and install “Bonjour” application:

  • Make sure to have both PC and iPad/iPhone connected to the SAME wifi network.
  • Run FSX and accept the messages that will be shown related to the plugin.
  • Run Air Navigation Pro on your iPad/iPhone and make sure to ONLY have the “Flight Simulator X” sensor in «Tools» menu (disable all the others, including “iOS Location Services”).
  • Start a flight in FSX and press “ALT” key , then look for the “Add-ons” menu on the top bar and Start Air Navigation bridge.

Note: make sure to have no Firewalls blocking the connection.


  1. Please, check if you have a "AirnavBridgeFSX.dll" file in the \AirnvBridgeFSX directory within your P3D / FSX directory structure.
  1. Check if the installer succeed in modifying the DLL.XML (located in c:\Users\<Your Name>\Appdata\Roaming\Lockheed Martin\Prepar3D v2\). Anyway, edit the DLL.XML to check if this section actually exists :

<Launch.Addon> <Name>Air Nav Bridge FSX</Name> <Disabled>False</Disabled> <Path>AirnavBridgeFSX\AirnavBridgeFSX.dll</Path> </Launch.Addon>

If not, obviously correct/edit DLL.XML to reflect.

Note: There might also be a simple mistake such as an error in a line of the DLL file. Example: Instead of having "Air Nav", you read "Air Mav".

Still having issues:
If you notice a mistake in the file name given on the FSX error message, for example reading "AirmavBridgeFSX...", with an "m" instead of an "n", you should try doing the following: Rename ALL the files related to the FSX Air Nav Pro plugin with the same mistake (put an "m" and remove the "n"). For example: if you have AirnavBridgeFSX.dll, rename the file to AirmavBridgeFSX.dll

Still having issues:
Try removing this key from registry:

[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers] "C:\\Program Files (x86)\\Microsoft Games\\Microsoft Flight Simulator X\\fsx.exe"="$ IgnoreFreeLibrary<AirnavbridgeFSX.dll> HIGHDPIAWARE"

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