All I get is output from java, like if you were just to type 'java' at the prompt and hit enter, it just shows all the switches and parameters. I tried editing the batch file and changing this: java -mx128m -cp JiGLE.jar;. JiGLE %ARG% %ARG2% %1 %2 %3 %4 %5 %6 %7 %8 %9 to this: java -mx128m ...