A component of the new Microsoft Windows XP SP2 Security Center that warns you when you run a .exe (executable) file that you have downloaded from the internet. Its purpose is to stop n00b users from getting infected with malicious software, but for us advanced users it's just a royal pain in the ass.
When I downloaded Mozilla Firefox 1.5 Beta 2, Windows XP's Security Warning prompt tried to stop me from installing it.
by Home slice October 25, 2005
Can you define these popular missing words?