The video below shows the issue:
I think that the problem is definitely related to the WSCommCntr. This is the Autodesk Infocenter, and it should be located at:
C:\Program Files\Common Files\Autodesk Shared\WSCommCntr3\lib
As I state in the title, stopping the offending process is only a temporary solution. There may be some issue that you need to correct. For instance, my Task Manager also showed WSCommCntr2.exe and I essentially also had to stop this process to get the Autodesk Infocenter to behave.
Feel free to comment if you would like your experience with the Autodesk Infocenter.
I have previously had other issues with Revit stalling at the splash screen:
SECSplashWnd error - Revit 2010 stalls on loading