http://minilgos.pers....fr/mse2eth.zip is an alternate solution, for the "light gun" feature.
I've just purchased two "Light Gun Adaptors" (you can see photographs if look for this name on ebay).
Quite comfortable and quite good aim if you keep gun at 3 meters from standard wii IR bar. However much stuff is to be done in menus through A button (top button) and the gun trigger is connected to B of course.
They come from hongkong without any documentation.
I laugh because obviously, package has been opened/examined/closed (there are some red seals on it...). Obviously hard plastic guns toys don't go thru customs without being noticed. Normal.
There is a little thing to know. There is some wires in the hilt to allow you to connect a nunchuk (or any other device) at the bottom of the hilt.
If you connect the wiimote first, then the nunchuk, link doesn't work.
If you connect the nunchuk, then the wiimote, then link works.
There is a little PCB inside. Dunno what's going on in this link. Whatever.
Hard to guess without documentation...
My final judgement is... Great product!
I smell some Time Crisis remake coming!
(And lots of fun with resident evil 4...)