How to login to an expired Windows

http://www.petri.co.il/bypass-windows-server-2008-activation.htm

http://www.thetomorrowtimes.com/2006/12/how-to-login-to-expired-windows.html

http://www.astahost.com/info.php/Login-Expired-Windows-Vista-System_t17422.html

http://keznews.com/1916_How_to_login_to_an_expired_Windows

http://www.youtube.com/watch?v=Ar-VoO9ogHc