I just updated to Minecraft 1.6.4 and I tried to reinstall forge, but when I double clicked the installer, nothing happens. I have tried a full java reinstall, including deleting registry files, and I have done the jar fix thing. I have both java 7 Update 40 for x32 and x64. When I do double click the .jar, a javaw.exe process pops up for half a second in the task manager. What do I do?

Not sure why people have so much issue with running a jar file it's pretty basic.

Basically you need to run java -jar {forge installer jar}

Doesn't seem to be working. I copied the video exactly.

Then you didn't copy the video exactly.

Give us the full logs. And show us exactly what you're doing: http://ohsoft.net/product_ocam.php

http://i.imgur.com/V86PKAV.png

Bam. Not the op but I'm having the same problem. Copied exactly and I get that.

1) Run jarfix, link in eaq

2) NO HIJACKING OF THREADS!!!!

You've somehow screwd up java being in your path, you're gunna have to use the full path, or re-install java.

When I run it in command, it registers java as a legit command, but same thing. javaw.exe pops up in task manager as a process for half a second, then closes with no actual window.

Hey,

  I got it to work after clicking it 100 times, it started popping up. Thanks for the help!