This file is a stub (0 bytes) and Iām not sure it is actually working with the App Compat flags (I tried this one in the past and didnāt see any change). Iāve also tried the full path into WindowsApp but this didnāt seem to make any difference either to me, but this was quite a few months ago already (It might have been during the alpha prior Aug 2020).
UPDATE: Actually you can manually type the path into file explorer and this opens the FS2020 WindowsApps folder nicely.
If you have the MS Store version:
- Open file explorer
- Click on the āPath Barā (where it shows āThis PCā by default)
- Copy/Paste the following:
C:\Program Files\WindowsApps\Microsoft.FlightSimulator_1.12.13.0_x64__8wekyb3d8bbwe
When disabling full screen optimizations it is indeed creating an entry in the registry:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Key:
C:\Program Files\WindowsApps\Microsoft.FlightSimulator_1.12.13.0_x64__8wekyb3d8bbwe\FlightSimulator.exe
Data:
~ DISABLEDXMAXIMIZEDWINDOWEDMODE
see also: Demystifying Fullscreen Optimizations (DirectX Developer Blog)