Hello,
I experienced the same problem, and I think it has something to do with administrator rights und user access control - at least in my case.
Running FSX on a Win7/64 machine with UAC on (second notch from top), I'm using two accounts on this PC: an administrator account for installing and sometimes for testing, and an restricted account for normal flying.
I experienced exactly the same problems as described when running FSX in the administrator account (reinstalling of the Visual C++ 2005 libraries didn't help). When running FSX in the restricted account everything seems to be O.K.
Normally that's the other way round: No problems when logged in as admin, but problems when restricted …
I've solved the problem by giving explicite admin rights to <FSX-folder>\fsdreamteam\couatl\couatl.exe - since then I never had the problem again under the admin account, and there are no additional issues under the restricted account, as far as I can see in the moment.
You
may try to solve it by right-clicking on the .exe-file and open the properties, then switch on "run program as admin" in the compatibility tab.
But I prefer the Microsoft Application Compatibility Toolkit, which is a much more powerful tool to solve problems caused by the UAC or restricted accounts.
You can download it here:
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=7352Some helpful instructions you can find here, but they're in German - but I'm sure you can find something like this in English in the net, if you can't read German …
http://www.winfaq.de/faq_html/Content/tip2500/onlinefaq.php?h=tip2534.htmI used the RunAsAdmin- and the RunAsInvoker-option (which turns UAC off for an individual application) for couatl.exe
Maybe this could help you.
Regards