Possible?
is it possible to get past the FML authenticator for hexxit and get hacks for it?
there done omg so hard.OR you can just use the normal vanilla launcher and it doesnt use the FML check
.

try
{
FMLRelaunchLog.fine("Validating minecraft", new Object[0]);
Class loaderClazz = Class.forName("cpw.mods.fml.common.Loader", true, classLoader);
Method m = loaderClazz.getMethod("injectData", new Class[] { [Ljava.lang.Object.class });
m.invoke(null, new Object[] { FMLInjectionData.data() });
m = loaderClazz.getMethod("instance", new Class[0]);
m.invoke(null, new Object[0]);
FMLRelaunchLog.fine("Minecraft validated, launching...", new Object[0]);
}
catch (Exception e)
{
System.out.println("A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML");
throw new RuntimeException(e);
}

try {
applet = MinecraftLauncher.getMinecraftApplet(pack);
} catch (CorruptedMinecraftJarException corruption) {
corruption.printStackTrace();
} catch (MinecraftVerifyException verify) {
org.spoutcraft.launcher.api.Launcher.getLogger().log(Level.SEVERE, "Minecraft Verification error", verify);
org.spoutcraft.launcher.api.Launcher.clearCache(pack);
JOptionPane.showMessageDialog(getParent(), "Your Minecraft installation is corrupt, but has been cleaned. \nTry to login again.\n\n If that fails, close and restart the application.");
setVisible(false);
dispose();
org.spoutcraft.launcher.api.Launcher.getFrame().enableForm();
return;
}