Mr.Kirk

I remember when I was crashing too, though after 7 days of random crashing it stopped, Java 7 should decrease atleast the amount of crashes you get.

EDIT: I suggest you getting a clean launcher.bat when youre done whit the link above.

For me it looks like a path problem, Try to add this to the path = ;C:\Program Files\Java\jre7\bin If you run Java 6 writte jre6 instead of jre7 and if you run a 64-Bit system add (x86) after program files, will look like this Program Files(x86) More detailed instruction: http://forums.technicpack.net/threads/how-to-set-up-a-tekkit-server-step-by-step-guide-win-7-images.2299/