build/windows/launcher/launch4j/demo/ConsoleApp/build.xml

<project name="ConsoleApp" default="exe" basedir=".">
	<property name="src" location="src" />
	<property name="lib" location="lib" />
	<property name="build" location="build" />
	<property name="launch4j.dir" location="../.." />

	<path id="dist.classpath">
		<pathelement path="${build}" />
		<fileset dir="${lib}">
			<include name="**/*.jar" />
		</fileset>
	</path>

	<target name="init">
		<tstamp />
		<mkdir dir="${build}" />
	</target>

	<target name="compile" depends="init" description="compile the source">
		<javac srcdir="${src}" destdir="${build}" classpathref="dist.classpath" source="1.4" debug="on" />
	</target>

	<target name="jar" depends="compile" description="create the jar">
		<fileset dir="${lib}" id="lib.dist.fileset">
			<include name="**/*.jar" />
		</fileset>
		<pathconvert pathsep=" " property="dist.classpath" refid="lib.dist.fileset">
			<map from="${lib}" to=".\lib" />
		</pathconvert>
		<!-- Put everything in ${build} into a jar file -->
		<jar jarfile="${ant.project.name}.jar">
			<fileset dir="${build}" includes="**/*" />
			<manifest>
				<!-- SET YOUR MAIN CLASS HERE -->
				<attribute name="Main-Class" value="net.sf.launch4j.example.ConsoleApp" />
				<attribute name="Class-Path" value=". ${dist.classpath}" />
			</manifest>
		</jar>
	</target>

	<target name="exe" depends="jar">
		<taskdef name="launch4j" classname="net.sf.launch4j.ant.Launch4jTask" classpath="${launch4j.dir}/launch4j.jar
		    :${launch4j.dir}/lib/xstream.jar" />
		<launch4j>
			<config headerType="console" jar="ConsoleApp.jar" outfile="ConsoleApp.exe" errTitle="ConsoleApp" chdir="." customProcName="true" icon="l4j/ConsoleApp.ico">
				<singleInstance mutexName="net.sf.launch4j.example.ConsoleApp" />
				<jre minVersion="1.4.0" />
			</config>
		</launch4j>
	</target>

	<target name="clean" description="clean up">
		<delete dir="${build}" />
		<delete file="${ant.project.name}.jar" />
		<delete file="${ant.project.name}.exe" />
	</target>
</project>