First, you cannot have both IIS and JBossAS running on port 80 on the same IP. Either One of them will have to use a different port, or you will have to add another ip address to your NIC and then add another domain name for that IP address to your DNS server. For example, if mydomian.com has IP adress 192.168.111.101, then add IP address 192.168.111.102 to the NIC, and set otherdomain.com to that IP address. Second, run jbossas with the -b option, specifying either the host name or ip address (that would be otherdomain.com or 192.168.111.102, from the above example). Then as long as the browser has access to a dns server that can translate the address, you should be all set. Also, I assume that you have seen http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossOnPort80 for changing port 8080 to 80. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4145949#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...