Dashlaunch is a software that controls the behavior, network and plug in of your jtagged console.... you can enable/disable a few options to make it safe while connecting to wifi.... so that you can play SYSTEM LINK... but if u connect wifi without any protection from dashlaunch, you will get CAUGHT for sure...
Bro, you need your original xbox software containing your original CPU and DVD keys after you remove jtag chip off your console. You can get it from the person whom jtagged your console... and if your DVD rom is patched with LT3 Then u can play 150/- games.