Live check.

[TippeX]

the memory checks are only if code is altered, ie: exe altered (trainer)
info is taken from the cat file... its not what you need i think

whats the problem in making an offline gfwl account and using that?

if the game uses xlive.dll gfwl is a lot more integrated than just patching out the dll... it goes a hell of a lot deeper, and some of gfwl's capabilities are rarely used due to their counterparts not being available on xbox so devs rarely use them (eg: protected memory areas)

what exactly is it that you are trying to do / achieve?