Basically you need to add the drools-ant on your classpath define your compile task <taskdef name="rulebase" classname="org.drools.contrib.DroolsCompilerAntTask" classpathref="drools.classpath" /> And use the rulebase task as the following example <target name="rules" > <rulebase srcdir="${eclipsepath}src/test/resources/rules" tofile="${eclipsepath}target/cheese.rules" classpathref="cheese.classpath" > <include name="*.drl" /> <include name="*.brl" /> <include name="*.xml" /> <include name="*.dslr" /> </rulebase> </target> you can see my test XML file here http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-ant/src/test/r... On Fri, Mar 7, 2008 at 5:59 PM, Eric Miles <eric.miles(a)kronos.com&gt; wrote: -- Fernando Meyer http://fmeyer.org JBoss Rules Core Developer fernando(a)fmeyer.org