anonymous wrote : You're referring to org.jboss.web.comet.CometProcessor, right? Yes. Using JBossWEB 2.1.x jar files could help but that is not a supported configuration. The Comet should be in the AS 5.0.x versions but you can use the standalone version. The developers are still discussing the definitive API we will make a JBossWEB release soon. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4158586#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...