I have a posted example in my blog.. where I use the following line: | builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream("/categorizar.drl")); | Look that I take the drl file from my classpath. Take a look at the post.. is in Spanish but you can translate it with: translate.google.com Here is the link to the post: [url] http://salaboy.wordpress.com/2008/09/01/jugando-con-jbpm-12-jbpm-drools/ [/url] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4186683#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...