I'm developing one kiosk software, to run over Windows 7.
I need to block key sequences like alt + tab, alt + F4 etc. How can I block it?
Autohotkey can do this in a single line:
It's useful for blocking all of the common nasty key combinations you wouldn't want used on a kiosk, such as Alt+F4, Ctrl-W (depending on browser used), F11, and so on.
I would suggest reviewing this: http://www.windowsnetworking.com/kbase/WindowsTips/WindowsNT/AdminTips/Miscellaneous/DisableAltTab.html
(Registry entry should do the trick).
Also, I would look into replacing explorer as the default shell app. Then you'll have more control over what people run.