Maybe I expressed myself unclear, but is Cuoatl.exe not part of your product? I can not use Zurich without this protection software, which can not install itself able to run. And did you read, I reinstalled everything, FSX and Zurich. So everything you said was just ignoring my message.
I obviously haven't: this is what you wrote:
I can't start Cuoatl.exe and several other programs anymore. These are rexwxengine2.exe, the rex weather engine and SeasonFileSwitcherV2.exe, a program used by flylogic sceneries to change the plants according to season.
You used the present time so, I must assume you STILL can't start all these programs anymore.
OR, you meant that BEFORE reinstalling you WERE (past time) unable to start these programs and NOW (after the reinstallation) they are all starting up *except* Couatl ?
If yes, then what's the point of posting a log showing that REX can't start because it couldn't find Simconnect ? Since you posted that log, I can only assume this is still your current situation, otherwise there was no use posting it.
So, either there was no use posting the log showing that REX crashes (because it's now fixed after reinstalling everything) OR, if it was relevant to the current situation after reinstalling, than my comment about your problem doesn't have anything to do with any of our product stands, because if REX is STILL crashing, as for your log, it means the problem is affecting other products too, so it's not clearly caused by Couatl, the only relationship with it, is that is just one of the several products affected by the problem.