I got this to work for my radio panel.
I have FS2020 installed, and there I could locate my exe.xml file, I copied it over to the FS2024 folder where I have it here:
C:\Users\Username\AppData\Roaming\Microsoft Flight Simulator 2024\
If you don’t have the file from FS2020, here is the content of the whole file in my case.:
<?xml version="1.0" encoding="Windows-1252"?><SimBase.Document Type=“SimConnect” version=“1,0”>
Auto launch external applications on MSFS start
exe.xml
False
<Launch.Addon>
<Name>AFCBridge</Name>
<Disabled>False</Disabled>
<Path>C:\FS2020\community\AFC_Bridge\bin\AFC_Bridge.exe</Path>
</Launch.Addon>
<Launch.Addon>
<Name>Logitech Microsoft Flight Simulator Plugin Steam</Name>
<Disabled>False</Disabled>
<Path>C:\Program Files\Logitech\Microsoft Flight Simulator Plugin\LogiMicrosoftFlightSimulator.exe</Path>
<CommandLine>-r</CommandLine>
</Launch.Addon>
</SimBase.Document>
So just create a new exe.xml file with notpad (don’t save it as .txt file, make sure it is exe.xml
Hope that helps you that have this issue.