Unable to load Twitch librairies

(Sorry for my english, I'm french :/)

"Twitch Broadcasting Unavailaible
Unable to load the librairies needed for the integrated Twitch broadcasting service."

I've this error message when I go to ESC > Broadcast Settings...

I've, approximatively the same message started on the first snapshot who integrate the Twitch broadcasting service and finish to the last snapshot (14w02c)... 1.7.3 and 1.7.4 give me the same message..

I've this message on the Launcher:

"If on Windows, make sure to provide all of the necessary dll's as specified in the twitchsdk README. Also, make sure to set the PATH environment variable to point to the directory containing the dll's.
[Client thread/ERROR]: Couldn't initialize twitch stream"

EDIT: As I can see, it's works with JAva 64-bits with 14w06b snapshot, so it's resolved I think