If you get an exception with the CCF agent desktop which involves "RegisterListener" then likely you got a little too confident in your deployment and didn't follow the deployment guide like for line. If you had you would have installed
Microsoft WSE 2.0 SP3 Runtime.msi which is in the
Others folder of the deployment on the desktop prior to trying.
So you are also aware, if this fails pretty much a ton of other items (menu's, status updates etc...) will also fail.