To kill the Communication Center … in Regedit replace all the (1) with (0) see image.
(you will need to login to Revit Forum)

Then rename WSCommCntr2.exe to AAWSCommCntr2.exe
( C:Program FilesCommon FilesAutodesk SharedWSCommCntrlibAAWSCommCntr2.exe)

via this post
New AUBench (archive) – Page 22

Obviously, you may need to change the Registry location depending on what version of Revit you are using…

If you don’t want to manually edit the Registry, you can use the CAD Manager Control utility as per this post:
Revit 2011 closes right after the splash screen – Autodesk Discussion Groups

If you are having Communication Center issues, it may be due to a corrupted XML file.  Refer to this Revit support page:
Revit 2010 products hang at or before splash screen

This AutoCAD support page is along similar lines:
How to disable the Communication Center in Autocad? 

While using Autodesk Product Manager, or the Autodesk Asset Locator, you may come across an issue where certain remote computers are ‘unreachable’. Assuming you have the correct permissions, the problem here is that the Remote Registry Service is not running.

Simply go to the Client computer that is ‘unreachable’, open Services (Start – Run – Type services.msc), find the service called ‘Remote Registry’ and Start the service.

When you run a search again, this computer will now be reachable by the Autodesk Asset Locator, and you will see the Autodesk products on this PC in the search results.