Nothing special due to Vista. For firewalls, that depends on the firewall you are using and how it is configured. If, when you start the app server, you get a popup from your firewall saying that java.exe wants to act as a server, let it. Approx system usage? Depends on your apps. Typically, around 200-400MB. Also, I hope that this is for development/testing and not production. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4222393#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...