The SimConnect Config Tool is very useful for editing the Microsoft Flight Simulator X (FSX) SimConnect settings. You no longer have to figure out where it is stored or know how to edit the INI and XML files. It was written by Jürgen Treml who has a website here.

He also has a related project at CodePlex named FSX Google Earth Tracker (FSXGET). I have not used any of these two but they sure look like something useful having had to edit SimConnect settings manually.