How can I bann(block) the Ctrl-Alt-Delete option on my computers.?

Question

Hint: I run an internet cafe program that keeps track of sales, and time, so the matter is that my employees are breaking throught my program by pressing the Ctrl-Alt-Delete option which opens the stations which banns the Server from keeping track of such usage. Thanks!

Answer 1

To Enable or Disable the CTRL+ALT+DELETE Sequence
1.Click Start, click Control Panel, and then click User Accounts.
2.Click the Advanced tab.
3.In the Secure logon section, select or clear the Require users to press Ctrl+Alt+Delete check box.

Or use this registry fix
http://www.kellys-korner-xp.com/xp_tweaks.htm
Scroll down to #198 on the right side