Kiosk Shell

I need a shell/OS built for a kiosk application.? The final system must be locked down, ie no one or nothing should access the hard drive other than the shell.? The shell must have a secret 'hotkey' to exit the application. Abackground application will update the kiosk data through teh internet. The shell application and the background update application have both been created.? All that is required is the OS/Shell. Even the hardware profile was created using Embedded Xp. ## Deliverables I'm using Embedded Xp