Hello I get two missing .dll file errors when trying to launch the DJI Flight Simulator.  I am running Windows 10 64 GB Version.  How can I fix these errors??  X3DAudio1_7.dll and XAPOFO1_5.dll are the files shown missing.  

I have the same problem. Did you get an answer? I've uninstalled and reinstalled several times. My Win10 PC is up-to-date.

Upgrade the Microsoft DirectX to the latest version and Update the graphics driver.

That was from DJI Support. It worked for me. But my laptop with an Intel i-3 processor, 8MB RAM and shared video struggles with the Simulator: Slow and jerky.

Get download x3audio1_7.dll and xapofo1_5.dll and your problem would be resolved. Check this website https://pcpatchedup.com/