Hi, i have one computer and i want to make videos for youtube, i need help, when i try to alt-tab out of the game it auto pauses making fraps record a paused screen while i do the stuff on the other client. can i prevent autopausing.
No, it will pause when you cause Minecraft to lose focus.
You can press [F3]+[P] to toggle this auto-pause on and off. Be careful if you turn it off, though. You don't want to forget you've done it, and then die an untimely death when you thought you were safe after alt-tabbing to a different window.