Login with the account the service is running in, and enter the commands by hand. If that will not work, it will not work from the service. If it does work, it should work from the service, because things like this should depend only on the account permissions. Also, check your syntax, I think you need a space between "taskkill" and "/IM". View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4089746#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...