I’ve been having an annoying problem this week when starting AutoCAD Map 3D 2011 from C# to debug. Each time AutoCAD starts it hangs on the communication center. Until I kill the WSCommCtr2.exe task AutoCAD will not finish loading. Disabling the communication center involves a quick registry change the following key value to 0:
You may see a different version (R18.1) or product id (ACAD-9002-409) depending on which AutoCAD flavor you have installed. Tweak that key and you should be good to go!