excuse me for the FAQ

[Pasquale di Gaetano]

I've just installed EMACS 21.3.1 under WINDOWS XP and want to change the
mouse configuration: now the middle button acts like "paste" command, and i
usually click on it, not on purpose, therefore I paste a text on my MS
document even though that was not my intention.. You may understand that
this is a problem, especially when i write source code.
How can i disable the middle button? Not the wheel, only the button..

Thank you!