CSharp System Locker V.1.4

C# System Locker Version 1.4 --- You want to lock you computer, and prevent any one to access it, you making a remote control system and you want to control other users login, you making a net cafe autmation system and you want to lock other computer. --- Its posible now, as the most hard part in this procedure is to cancle all hot keys and SURE TASK MANAGER. In my old post in VB6 i do this in hard way by using API to cancle all hotkeys, but now in C# i find a code that can create a desktop, but that code has a drawback as u need two exe file one to check desktop name, create a new desktop if needed and execute the 2nd exe in new desktop. In my code i do it in only one exe, there is much details in code, also copyrights info and a link to the coder in VB6, I hope you find it useful, and hope for comments and rating :)). --- Version 1.4 solve the problem of switching back to the default desktop, as when switching back to the default desktop, we create a new desktop with name of the default one, so needed handels for switching back. --- Future Works: Add the ability to control the keyboards and prevents the [WINFLAG] + L, for vista users editing the registry values to imitate the welcome screen in win xp, your help is needed, IF ANYONE know how to use the WNDPROC so that we can limit some keys, please inform me, Thanks