There must be a disconnect between where you placed the file and the classpath. How are you starting the client? Via Eclipse, NetBeans, Ant, command line? Also, exactly where are you placing the properties file and exactly what is the classpath? Are you creating a jar file that contains the client classes? If so, you could place the jndi.properties file in the base directory of the jar file. That should work. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3993884#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...