That means something is not working as expected. And since the window automatically closes, we don't get to see any error messages. But, there is a way to keep the window open. And that is to manually run the authserver.exe or worldserver.exe. This can be done from the command line. So click start, type in: cmd to find it, and open it. Now cd to the drive/folder where DrePack is located, and from there start the server by typing worldserver.exe.
