another question...
in Tomcat you can add –Djava.system.class.loader=com.xxx.xxxClassLoader to catalina.bat to state that the system classloader is xxxClassLoader.
Can this be achieved by adding
set "JAVA_OPTS=%JAVA_OPTS% -Djava.system.class.loader=com.xxx.xxxClassLoader" in run.bat ?
Unless this is Java setting, then no -- MC's CL doesn't handle that.