Umberto, you will be glad to know that your product woks as expected on Windows 10 Preview Edition. Maybe thanks to the new Couatl 3 Beta.
My problem is here:
http://www.fsdreamteam.com/forum/index.php/topic,11878.0.htmlMy Solution:
1. Removed all traces of previous Couatl and CYVR installations. Used CCleaner Registry clean (I don't trust many other cleaners for this). Rebooted.
2. Downloaded and ran Couatl 3 Public Beta from here:
http://www.fsdreamteam.com/forum/index.php/board,45.0.html as per Umberto's suggestion.
3.FSX Addons showed submenu of ADDON MANAGER but no COUATL menu as yet
4. Used Addon Manager to activate my registered version of GSX. Exited FSX
5. Installed CYVR (cyvr_fsx_setup V1.4.exe). Restarted FSX. confirmed that CYVR (after activation)was showing correctly.Exited FSX
6. Ran the latest current Full GSX Installer. Started FSX. All menus are there and functional.
Win10 comes with an installed Windows Defender (same as Win 8.1) and I knew from previous experience that it doesn't complain about the installation. I would suggest though that other Antivirus should be disabled during installations. Also, when I remembered I ran the installation programs as Administrator. I can't think of anything else that may be relevant at this moment.
All is good. Hope this helps others with the same problem.
BTW, silly, embarrassing question: A couple of times I was told after installation that the backup registration key is in the home folder.I couldn't find it in Documents under my profile. Is it some other place? Maybe Win10 is a little different here.
Charles