Take both the JDK and JBossAS out of Program Files. Paths with spaces in them tends to give some Java code fits. I have mine installed at c:\apps\jdk1.5.0_13 and c:\opt\jboss\jboss-4.2.2.GA. You do not have to re-install the JDK - simply move it to the new location and adjust JAVA_HOME accordingly. Please verify that JBossAS is using the 1.5 JVM (and not 1.6); look for a message in the console log similar to the following: 16:56:39,265 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_12-b04,Sun Microsystems Inc. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4115834#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...