Do you want to add another level of security to your login if you are in a workgroup? Every wonder why domain users have to use the CTRL + ALT + DELETE? By having to physically perform a CTRL + ALT + DELETE you make sure a trojan/backdoor program doesn't spoof you. It is just another layer of security if you are interested.
Click and type netplwiz (Advanced User Accounts Control Panel) in the Instant Search Field.
Click on the Advanced tab and tick Require users to press CTRL + ALT + DELETE.
The next time you login, you will have to press CTRL + ALT + DELETE.
Windows Vista Poll