How do I disable Ctrl+Alt+Delete sequence without modifying GINA or just blocking out Task manager?
+2
A:
There is no way to disable Ctrl-Alt-Del, called the "Secure Attention Sequence". This is by design of Microsoft for security purposes.
William Leara
2009-12-16 20:58:12
Indeed. If you feel your application needs to override CAD, then either your design sucks, or you're building malware.
Anon.
2009-12-16 21:00:43
What about a program which limits users abilities which would be used at work?
2009-12-16 21:04:23
If you're a system administrator, the correct way to do this is with Group Policy.
Anon.
2009-12-16 21:06:14
The combination would still work though
2009-12-16 21:10:16
There's a reason for that. If you can't understand those reasons, then I would question whether you should be writing software for businesses at all.
Anon.
2009-12-16 21:15:11
If you were not able to disable Ctrl-Alt-Del, then THAT would be a security problem -- for example, think of a kiosk. The security issue is that Windows won't allow a program to take over (to respond to) a Ctrl-Alt-Del.
jdigital
2009-12-16 21:26:19
@jdigital: There's a difference between allowing Ctrl+Alt+Del, and doing something with it. Under XP for example, let's say the key sequence is enabled, but all the buttons in the dialog that comes up are disabled. There's no security risk in that.
Jon Seigel
2009-12-17 19:55:36
A:
http://www.codeproject.com/KB/system/preventclose.aspx
This tells you how to hook the Ctrl+Alt+Del combination thus blocking it.
Nick Brooks
2009-12-16 21:08:16