I have reinstalled from zero and made some changes so it works along with other instance I need to be started. It started up again, but now when trying to access the page it throws an error right away java.lang.NoClassDefFoundError: org/eclipse/jdt/internal/compiler/parser/Scanner The installation is on Win XP Is a JBoss 4.2.2 Java jdk 1.5 View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4241745#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...