sbool standalone_start(S[] args, S programName, File newUserDir, File mainJar, File unpackDir) {
  print(programName + " starting.");
  ret true if javaXStandalone_init(args);
  setUserDir(newUserDir);
  ret true if standalone_activateFrames(osID);
  vm_setResourceLoader(resourceLoaderFromJar(mainJar, unpackDir));
  false;
}