Just found the Dubbelbock tool.
It implements a feature, that tools like Subversion offers today and we dind’t have. The possibility to do all source control action just right away out of the Windows Explorer. This means CheckOut, CheckIn, Version compare… is available from Windows Explorer Right Click menu. Excactly this features are now also available for TFS:
In the picture above you can see the whole functionality and it is really super easy to use. Commands like CheckIn use normal Dialogs with all TFS funcionality.