In jBPM the concept of task is about human tasks, so running an .exe is like a system taks. So you can use a Node that execute that .exe and then use a fork to do it in parallel. You questions sounds like you are trying to do something with a heavy multi threading and not a business process. Can you explain your scenario? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4187910#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...