Today, we had to update out server (Girlfriend and I) and when we downloaded the new server for Magic World, and extracted the files, and when we went to start the server, the CMD window would flash and disappear. Turns out there was something with the .bat file that says MagicWorld0.3.jar. we deleted the 0.3 part, and it seems to have worked. (Just in case anyone else is having this problem.)