Exiting windows through a C program.

I would like some help with, as the thread name implies, with exiting windows through a C program. I am quite new to programming, so please try to explain what to do :). I guess that C doesnt have a function that exits windows, but you'd have to call some other function?

#include<stdlib.h> -->system("command");
replace command with the command that makes windows shutdown

cheers

Thanks, i got it to work!

http://msdn2.microsoft.com/en-us/library/aa376871.aspx