Borislav --
Thanks for responding. I copied your code and ran it. However, it brought up the "Run" dialog box (same as pressing Windows+R) instead of the "Windows Security" screen (this is the screen that pressing Ctrl+Alt+Del pops up to allow you to manually lock the computer). I think you are on the right track though. Is it possible that one of those hex numbers might be a little off? Because, it looks like you've got the nuts of the code right. Thank you so much for helping me!!!