I am trying to prevent users 'escaping' using shortcut keys. All OK for win 95 98 etc
SystemParametersInfo(SPI_SETFASTTASKSWITCH,1,@Dummy,0);//Disable Alt-Tab SystemParametersInfo(SPI_SCREENSAVERRUNNING,1,@Dummy,0);//Disable Ctrl-Alt-Del ShowWindow((FindWindowEx(0, 0, PChar('Shell_TrayWnd'), PChar(''))), SW_HIDE);//hide taskbar but with XP, one probably easy question: These work RegisterHotKey(Application.Handle,$BFFF,MOD_ALT,VK_TAB);// Disable alt-tab RegisterHotKey(Application.Handle,$BFFE,MOD_ALT,VK_F4); // Disable Alt-F4 How do I disable Ctrl-Alt-Del ? (3 key combination) Regards Graham --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz To UnSub, send email to: [EMAIL PROTECTED] with body of "unsubscribe delphi" Web Archive at: http://www.mail-archive.com/delphi%40delphi.org.nz/