Hi Craig,
Are you looking for the Task Manager? If so:
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, clear the "Require users to press
Ctrl+Alt+Delete" check box.
If the Welcome screen is enabled, the computer can be locked if you press
CTRL+ALT+DELETE (to open Task Manager), and then click Lock Computer or
click Switch User on the Shut Down menu.
Enable or Disable Ctrl/Alt/Delete (Line 198)
http://www.kellys-korner-xp.com/xp_tweaks.htm