Always look for the "caused by" clause on the first exception: anonymous wrote : Caused by: java.io.FileNotFoundException: C:\JavaPrograms\jboss-4.2.3.GA\server\default\.\tmp\deploy\tmp38384MDASWebappDeploy-exp.war (Access is denied) How are you starting the app server? Via the command prompt using run.bat or as a Windows service? What account is being used to run the app server? Does that account have write access to indicated directory? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4179409#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...