Yet another tool that should be working with TFS Msscci Provider is RoboHelp. The reported problem is "Server Busy" error message display over Msscci dialog.

The solution for this (until release of the new provider) is to create registry file (robofix.reg) with the following content:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Microsoft\Team Foundation Server MSSCCI Provider\Settings\RoboHelp]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Team Foundation Server MSSCCI Provider\Settings\RoboHelp\ROBOHTML.EXE]
"issues"=dword:000000D1

Then run it.
Of course this script is provided "as is". If it does not help, please remove this entry from your registry.