disabling ALL keys?

I searched for disabling keys, and i found some stuff about hooks. But I never figured out how to catch keys. And I heard somewhere that ctrl+alt+delete can't be stopped with hooks...

I thought there might be an easier way, to disable ALL keys.

Is their a registry key that i can delete or change that would stop the keyboard from working?

Or is there some system fiel that specifies what the currect keyboard is ... and change it to something else?

thanks :)

What legitimate purpose would happen to require that?

shutdown makes a pretty good job of stopping all the keys working :p