Filindel

I used Firefox, but I do have WinRAR. Should I try to uninstall it? Edit: Odd, I created a new Windows user and downloaded the Launcher. The launcher itself doesn't work, but I can run the .jar now.

Good instructions, but "Could not find or load main class bla bla". Any ideas?

Can someone post simple instructions on how to run the .jar?

Well, that doesn't help me, since I only got technic-launcher.jar in the .techniclaunher-folder. It hasn't started properly even once.

I'm having this same problem. I use 64-bit W7 and the latest Java. I have tried reinstalling both the Launcher and Java, but I'm still having this issue. My Windows username doesn't have anything but letters in it, so it shouldn't be the cause for this problem.