Disable CTRL+ALT+DELETE, ALT+TAB and other Windows Shortcuts

I need some help with some code to disable Windows shortcuts. I am working on a security program, to lock my computer without using the built in Windows lock. I need to make it so a user cannot close, move, minimise, or hide a form of my window without the password and the easiest way to do this is by disabling all windows shortcuts. If there some code, as I do not want to have to add a .dll file manualy everytime it installs, or could this be automated on launch?

Thanks

Moved From The CodeBank (which is for sharing code rather than asking questions :) )

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Originally Posted by Hack

Moved From The CodeBank (which is for sharing code rather than asking questions :) )

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Sorry, Clicked New Thread above a thread in CodeBank. Did not realizes it would put it there. :)

Sorry guys, it says VB 6, but it is for .NET! I can't work out how to move it. :D