Do Not Press F1 If Requested To Do So By A Website.
Microsoft is investigating a vulnerability in VBscript that occurs when a user presses "F1". The vulnerability makes use of an interaction between VBscript and the help files of Internet Explorer. Once "F1" is pressed malicious code can be executed in the security context of the logged in user. This security issue only applies to users of Windows 2000, Windows 2003 Server, and Windows XP; Windows Vista and Windows 7 users are not affected. There is no word yet from Microsoft on what would occur if malicious code was executed using the vulnerability.