One of the issues is that the online version of the book is based on Beta3 or Beta4 (it's been a while so I can't remember exactly which), and things have moved since then. (In fact, things are continuing to move with config setting and files playing an elaborate game of musical chairs). The job of the *.deployer entries in the deployer directory is to deploy applications of their respective types. For example, the jbossweb.deployer is responsible for deploying WAR files. On the other hand, the jbossweb.sar in the deploy directory is a service that contains the embedded JBoss Web Server (based on Tomcat), which is the servlet container for JBossAS. Configuration settings related specifically to running of JBoss Web Server (ex: server.xml) are located in jbossweb.sar, while configuration settings related to deployment of WAR files (ex: the global web.xml) are located in jbossweb.deployer. In earlier versions of 5.0, such as Beta4, all of the above files were located in deployers/jbossweb.deployer. The new locations seems to make better sense. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4191348#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...