Different ways of logging in? (Windows 8)

I know about the password, the pin number (4 digits) and for special laptops the finger swipe recognition login. But what i'm interested in, is voice recognition logging in. Is there ANY way I could do this? Thanks.

Not unless the system has support software to do it, I've seen a few laptops that did it, but they had specialised software that came with it.

This may be what you need:

Natural and Effortless Voice Verification

Check that out, let me know, I'm kind of interested too. The regular Speech SDK does NOT have any commands to log in, unless you can "speak" a password into the box.