"harperml" wrote : So I will download the jboss-4.0.5.GA.zip file. Will that work OK with the JDK 1.5.0_17 that I currently have? | Yes, should work fine. "harperml" wrote : | I do agree that it must be something like what you suspect. | | Mike Definitely the issue that Peter pointed out, you are using an incorrect JBossAS download (one meant for JDK6) against JDK5. See this http://www.jboss.org/community/docs/DOC-12933 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4204501#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...