Not only do I not know where you get this stuff, but how do you know how to use it? Wait is that the development team laughing at me?
Actually, I'm hesitant about trying to use this, myself. I'm not sure about the actual application of this...
It runs independently of NWN, so you install it, and then any .ahk file will execute on double-click. Generally speaking, you should activate it before you start NWN.