However, I don't have an add-ons.xml file; I have an add-ons.cfg file. If this is where I should put couatl.exe and bglmanx.dll, could you give me an example of how to enter them into there, as the file itself is empty?
You shouldn't do anything manually, the installers knows what to do.
The FSDT installer I used is the one that can be found on the left-hand-side of your GSX product page, which automatically entered the entries into dll/exe.xml-files.
Then you don't have P3D 3.4, because the current version of our installer, since June 1st, doesn't use the dll/exe.xml files anymore.
I've had issues that may be a sign of me having a wrong Side-by-Side configuration inside of the WinSxS folder (you can see more of that issue here, if it helps you understand the problem I'm having):
It's sure you have a Side-by-side error of some kind, that's precisely what the error message is about. And the version you have a problem with, is exactly the one that is required by our software, and by so many other add-ons, like SODE, which is the SP2/Acceleration Pack, the 61259 build.
Unfortunately, checking files might not be enough, because those libraries have lots of entries in the registry too.
Some users managed to fix Simconnect issues this way:
- Booting Windows in SAFE MODE
- Remove ALL the Simconnect folders from the Windows/SxS folder
- Restarting normally, and reinstall ONLY the 61259 version, which has its installer located here:
C:\Program Files (x86)\Steam\steamapps\common\FSX\SDK\Core Utilities Kit\SimConnect SDK\LegacyInterfaces\FSX-XPACK\SimConnect.msi