anonymous wrote : Class-Path: jboss-4.0.4.GA\client\jbossall-client.jar; That's not how the Class-Path entry works in the Manifest.MF file. See this http://java.sun.com/docs/books/tutorial/deployment/jar/downman.html for details. Assuming you have your CS-app-client.jar in C: then copy the jbosall-client.jar to C:. | C: | | | |---- CS-app-client.jar | | | |---- jbossall-client.jar Now in the Manifest.MF add the Class-Path entry as follows: Class-Path: jbossall-client.jar When you add this as the Class-Path entry, the jbossall-client.jar is expected to be in the same folder as the CS-app-client.jar (i.e. this path is relative to where your executable jar file is located). Now run your client application. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4128579#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...