So, I have still the problem that I get the errorcode 5, when I want to start the game.
But another problem is that when I click on start-http-xmpp.bat or start-udp.bat the cmd closes instantly. Otherwise, when I put the start-udp.bat into the cmd-window and press enter, it says "Unable to access jar-file". Anyone know how to fix that?
Edit: Yes, I have Skype, if you want to join me.