cpob, there is an exception but she seems to have no linki with JBPM Reason: org.jboss.deployment.DeploymentException: URL file:/C:/Logiciel/jboss-4.0.2/server/default/deploy/http-invoker.sar/invoker.war/ deployment failed In fact, she is there since the begining before I try to include jbpm in the project. kukeltje (please don't call me count, it had need me a long time to understand you talking to me), i'm sorry not to have mention it, I don't think it was important. I'm pretty sure I use the good jbpm.cfg.xml, because in the console stack, I see it using the datasource I define in my hibernate.cfg, and it's into the jbpm.cfg that I say to take this file. Actually, I don't really know how to debbug so I can't say more. Concerning the key words, when I've got an exceptions or a warning, it's easy to extract the good word too search. But there, I have no warning, nothing, and I don't really know how to target the research. Finally, concerning the web.xml, did you say I must include FileServlet and DeployServlet too? In a faq I read, they speak just about JbpmThreadsServlet. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4000989#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...