Simulate Ctrl-Alt-Del + BitBlt Screen when locked in vb

I need code that would enable to me simulate the Ctrl-Alt-Del keystroke in NT/2K/XP and I need code that would enable me to BitBlit from the desktop when the computer is locked. I am making a remote control program and I am almost done with it, I just need the code mentioned above. I know that for teh keystroke thing that you need to switch desktops and stuff. I just don't know how to do it in vb. I also know that it has to be running as an NT service, that is fine, that is how I plan to run it as. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows NT, Windows 2000, Windows XP. Visual Basic.