Hi, As you can see, I partially implemented the proposed hook system. Here an overview: XMonadContrib/Hook.hs This quite small file contains all the magic of the Hook system. It is intended to go to xmonad/ directly some day. XMonadContrib/HooksProxy.hs This shows how the hooks should be called from the core one day, and is meant to be called from Config.hs for now. XMonadContrib/WinNameManage.hs (sorry for the bad name) An example of how to implement the name matching functionality currently provided in the core as an extension, using the hook system. I have adjusted two more extensions to the new hooks system. Note that I have not yet added the MessageHook to the HooksProxy, as I haven’t worked with LayoutModifiers yet. I think it should be clear where this is heading, but this should, after due discussion, either be thrown away or moved to the core. In contrast to matching window names, a hook infrastructure should not be in a contrib module, and there should be only one of these around. I hope this will make the discussion a bit more productive and get more people involved. Greetings, Joachim -- Joachim Breitner e-Mail: mail@joachim-breitner.de Homepage: http://www.joachim-breitner.de ICQ#: 74513189