Here is a list of the things YOU seem to be asking other people with a "similar" problem... notice that I said "similar" not "the same" problem...
1)BOTH the "Addon Manager" AND the "Couatl powered products" menus are showing under the Prepar3d 2.4 "Addons" menu bar.
2)I have no Firewall or Anti-Virus software installed... therefore they are NOT running. Not now and not when I installed GSX.
3)I have installed the latest version of GSX from your site last night (09 Dec 14).
4)I purchased a license and I have activated it using the "Addon Manager".
5)No mention of this company under Tools, Internet Options, Content, Publishers, Trusted Publishers or Untrusted Publishers.
6) I have NOT made any changes to the default Key Mappings. I simply opened that menu to make sure the defaults where there.
I have the newest version of the "Migration Tool" and used it to install Traffic 360, EZDok 1.17, Captain Sim (757,777), LevelD 767.
I also have installed the Prepar3D version of... Carenado B1900D, Majestic Q400, FTX Global, FTX Vector, FTX LC, FTX EU, FSGlobal Ultimate (all 3 areas), VOXATC, FS Commander 9.5.1, all FTX Freeware airports for FTX global. Everything mentioned has been upgraded to newest versions - patches.
My system specs are as follows...
Asus Sabertooth p67, Intel 17-2600K@4.7, 8GB (2x4) Kingston Hyper-X 1600 RAM, NVidia Zotac GTX 9700, 2 x Crucial 256GB SSDs (Windows 7 64bit on one and Prepar3D 2.4 on the other) Matrox DTH2GO with second single LCD, Saitek flight gear and panels (with latest version of SPAD driver).
I cannot think of anything else that you may need. Simply ask if you need anything else.
Murray