windows 7 welcome screen twicks

http://social.technet.microsoft.com/Forums/en-US/itprovistasecurity/thread/0dd3dd73-f192-4c4e-9f02-5b246c6a9ae4/

http://technet.microsoft.com/en-us/magazine/ff394947.aspx

http://windows7themes.net/enable-classic-logon-screen-in-windows-7.html