Then i reinstalled but wasn't asked the "trust" question. i checked my reg (see screenshot) and found the values okay. Couatl and bglmanx are added to fsx.cfg automatically.
If you really removed all those sections, and after the first FSX start, you found them added automatically in the FSX.CFG, it means that Windows has instructed FSX to auto-trust the files for you. Which doens't happen automatically, but only if you, at least once, said to trust everything that is signed by Virtuali, which is one of the possible options.
In this case, everything is normal, and it's no strange behaviour at all.
By the way: Now i got the "no building" problems in full fury
So, let's start from scratch again:
- do you see the Addon Manager menu AND the Couatl menu under the Addons menu ? Do you see both, only one, of none of them ?
- Have you tried restarting FSX a couple of times, eventually rebooting Windows again ?
You should also allow some time for FSX to properly close. If you don't, and restart it too fast, it might be that the Couatl process is not closed and, if this happens, there will be no buildings. You can check if this is the case, by keeping the Task Manager open, and verifying there's no Couatl.exe process running, before restarting FSX.