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Before you begin:
Windows XP allows the AltTab to be registered as a hotkey, effectively blocking ALT+TAB and ALT+ESC shortcuts.



See also:
  • How to block the PrintScreen key
  • How to prevent users from accessing the Windows Desktop and from switching to other applications
  • Capturing keyboard activity of another application using the Raw Input API

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    2385 bytes  
    Created: 2004-01-03 13:06:59  
    Modified: 2011-01-06 16:29:17  
    Visits in 7 days: 218  
    Listed functions:
    FindWindow
    GetFocus
    GetLastError
    RegisterHotKey
    ShowWindow
    UnregisterHotKey
    Printer friendly API declarations
    My comment:
    This technique can not be used to block CTRL+ALT+DEL combination of keys.

    See also Microsoft Knowledge Base Article - 161133:
    HOWTO: Block CTRL+ALT+DEL and ALT+TAB in Windows 95 or Windows 98.

    * * *
    I found a discussion on the Expert-Exchange, Interrupt Handler for 0x19 (Ctrl+Alt+Del) in VB6, that you may find interesting.

    Then an article written by Antσnio Feijγo, Lock Windows Desktop seems to answer many if not all questions and even offers some downloads.

    * * *
    Read article Typename, Disabling Keys in Windows XP with TrapKeys by Paul DiLascia.
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