How do I make an application show up in full screen immediately after windows logs on.

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IE7

C#

Windows

HTML

IE

Flash

Win7

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Hi guys, I have deigned a web based quiz application reporting to a local server. I created a windows form with c# that has a web browser embedded in it as well, so it can display the quiz once the application is opened. i also made it full screen.

my problems are:
1.How do i make it totally block all other interactions on the desktop. so that the user must take the quiz before proceeding to use windows.
2.What is the best way to package it so it can run at start up?
3.How do i link a command that would close the win form application from the webpage part that it is displaying after the quiz.

I'd be very grateful if any one can assist me on this.
Thanks