Hello, I'm redcraft31.
Today, during an hour, I tried to launch the forge installer (minecraftforge-universal-1.6.2-9.10.0.800.jar) and it never launch correctly.
The only thing wich appeared is a windows cmd box, and it close immediatly.
I succeeded to read what it says, and it's write: "Could not find or launch the main class: C:\Users\***\AppData\Roaming\.minecraft\Forge.jarc" or something else.
I use a custom file extension for jar files (.jarc), but I have the same problem with the forge.jar. I use windows 7 and java jre7 (installed in the "Programme Files (x86)" folder and I can't change the directory).
What I tried:
-Download the src version --> I don't know how to programm with java.
-Uninstall and reinstall java --> No effect, same problem.
-Google my issue and search on the forum --> nothing on google, some issues closed on the forum and their solutions doesn't work for me.
I hope you can help, best regards, redcraft31.