I wrote an article back in 2007 that is still around the web, in various discussions including StackOverflow and DotNetSpider , so I have decided to re-publish the article. This article was relevant back then - and it wasn't tested on a Windows 7 environment purely due to the fact that it did not exist and please also note that comments are disabled for this post. Before continue reading please note that this article doesn’t intend to call upon you to create nasty applications. If you use this code it should be for your own fun or for learning purposes. After doing some research on disabling keys or key combinations I found out that there are several ways of achieving the before mentioned key combos. CTRL-ALT-DEL combo is part of the SAS ( Secure Attention Sequence) thus the solution to disable this is to write your own gina.dll ( Graphical Identification and Authentication ). Don’t worry, I’m not looking into that as for now, I’m going to show you the work arou...