I just formatted and re-installed everything and not one problem, are you running Windows 7?
If so, I would redo everything,
but this time, even the install programs, run as "administrator" even the aircraft and scenerys EXE files.
I know it's a lot of work but I read it somewhere that some installs won't add everything unless it's run as administrator.
and registering an OCX would be one of those problems. I finally got to install FSINN and Copilot, which I have always had problems installing
and getting it to work and no problems at all.
I have checked some of the programs after I installed them before I run them and some won't let me as administrator,
make changes to it, so I change it to allow me and nothing went wrong when I first connected.
So now I have everything the way I want it, evrything works the way it should, now the important part......
Make a disc image of the drive, that way when you add something and this go wrong, and they will
in less than half an hour I can have it up and running again
with everything installed and at a point that it's working good.
The order I installed: checking after each install.
1 FSX (Check that you have full privileges to run before running)
2 Updates to FSX (Check that you have full privileges to run before running)
3 Scenerys (Check that they are visible and in the correct order)
4 Aircraft (Check that they work and are visible)
5 Weather engine (Check that it will go online and works)
6 FSINN and Copilot (Check it will go online and works)
7 Make Disc Image.
8 Enjoy FSX and Online flying.
One more thing I did this time, (I think it helps) is some of the commercial Aircraft you buy have up to 30 liverys and aircraft.
I disabled the ones I dont fly, (Don't delete as some are used as AI)
Change the PANEL folder in each aircraft folder to "Panel.Hidden" or PANEL.CVA08 to "PANELCVA08.Hidden" now they won't show in the menu
back up the aircraft.cfg file in the aircaft folder to aircraft.bak and then edit out any textures you don't use, then save.
With MyTraffic X, I have over 5500 aircraft, yet I have 8 showing in the menu.
Good Luck