The correct installation procedure for Forge 135 and up is:
Get a fresh minecraft.jar (force update if needed)
Download the recommended build of Forge.
Copy the contents of Forge into the minecraft.jar.
and finally, don't even think about putting Modloader into it. Modloader is no longer required and is incompatible.
Crash, burn, epic fail.
Please refer to the preceding posts, and preferably read them in entirety - the process you outlined does not work for me. At all.
i.e. if Modloader was incompatible - then why does MC refuse to run until Modloader is installed...?
This is 100% completely replicable in Forge builds 135, 152, and 164.