If you're going to spam the system, why not just use Win32 API's and control their client like a zombie instead of trying to play the cat and mouse game reverse engineering their protocol?
You can send instructions to manipulate the client and have it do what you want almost as easily as you could if you knew their protocol. And that's without all the cat and mouse headaches.
You can send instructions to manipulate the client and have it do what you want almost as easily as you could if you knew their protocol. And that's without all the cat and mouse headaches.