1. A COM gateway would listen for COM events. We use Notifiers to send messages out of the ESB (not listeners). So you'd want to make a COM Notifyer too if I understand your drawings right. 2. I think both Mark and I are assuming you want to talk COM out of performance reasons. Is that right? I would be easier to go across something like WebServices. 3. Maybe you can elaborate a bit more on what it is you want to use this for? --Kurt View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4130930#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...