[Trigonous]

Well, I went ahead and replaced NetfliXBMC_Utility.exe with an AHK script, and it seems to work fine. It moves the mouse to the corner, and maps the mouse to the left thumbstick (depress to click), the volume to the left thumbstick, play/pause to the A button, alt+F4 to the B button, skip to the shoulder buttons, fullscreen to Start and Escape (exit fullscreen) to Back. It also watches for a Window titled "Netflix - Google Chrome" and closes when the window closes, in case something else happens. Downside is this only works if you're using Silverlight, so you'll have to go into your Netflix settings and disable HTML5.

Here's the pastebin (you'll need to download Autohotkey to compile it into an .exe). Replace NetfliXBMC_Utility.exe found at C:\Users\<username>\AppData\Roaming\XBMC\addons\plugin.video.netflixbmc\resources.

If you trust me here's a copy that's already compiled.