As I didn't expect Portal not being compatible to the windows installer version of JBoss, I already had the Windows Exe Binary (jboss-5.0.0.GA-jdk6) installed and working. After I found out that this version is not supported by JBoss Portal, I downloaded the JBoss Portal + AS Bundle (.zip), extracted it, deleted the JBOSS_HOME, and executed run.bat. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4217016#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...