@return true if the registry file's been successfully found and installed*/
public static boolean _installJMFRegistry(File cpDir) {
JXAenvUtils env = new JXAenvUtils(ExtensionsClassLoader.getInstance().getClassLoader());
env.addEnvFile("jmfRegistry", env.getEnvClassLoader().getResource("jmf.properties"));
env.setJXAenvPath(cpDir.getPath());
env.loadResource();
return env.isResourceLoaded();
}
/** allows a Swing context to be run with a returned value.
it checks if the {@linkplain SwingUtilities#invokeAndWait(Runnable)} can be run (if not,