I recently installed the Citation X from Wilco and ran into a problem exporting flight plans into the FMS. The Wilco support page on their website said this can be caused by a missing gps_export.dll file.
It turns out that this file is missing from my FSX installation so my question is how do I get this file back?
Other than the FSX Acceleration enhancement, I had not installed any addon software to FSX until the Citation X.
Any help would be appreciated.