Hello
i uninstall (put outside) Geneve, also addon manager, i remove exe.xml ( application data:fsx:roaning:)
i take again in your site Geneve for fsx, i reinstall again, and before running fsx i reinstall the stand alone addon manager ( before i configure the antivirus same you want)

and...............non bulding

for error you see in the EXE.XML i do bad copy

And, there's another error: you have TWO sections for Couatl.exe
Where

some other product you have installed might have corrupted the EXE.XML,
I don't have REX, i have PARIS CDG from AEROSOFT and some place from FRANCE VFR
no engine for weither, no engine like REX
But i disabled antivirus but and i stop also everything inside but when i install your scene, i have 2 alert about virus. It tall me only
but it dont stop; he tall me only
you should also see the "Couatl powered plugin" menu as well. Do you see this one as well
i dont loOk something like that, where it is

the new EXE.XML
<?xml version="1.0" encoding="Windows-1252"?>
<SimBase.Document Type="Launch" version="1,0">
<Descr>Launch</Descr>
<Filename>exe.xml</Filename>
<Disabled>False</Disabled>
<Launch.ManualLoad>False</Launch.ManualLoad>
<Launch.Addon>
<Name>Couatl</Name>
<Disabled>False</Disabled>
<ManualLoF:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\fsdreamteam\couatl\couatl.exe.ililhwlbqkwqwhzzbqquwnieukrqcnlokhlbctah=1
F:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X\bglmanx.dll.unuhnwtbzcworcoakunwattiibkzlltbzknicnrz=1
ad>False</ManualLoad>
<Path>fsdreamteam\couatl\couatl.exe</Path>
</Launch.Addon>
</SimBase.Document>
ALSO INDISE fsx.CFG