Long-awaited kitProtector version with support USB keyboard blocking has been released. Now you don't have to attach PS/2 keyboards only to your computers. Lock/unlock system key feature works well with any keyboard type for Windows XP, Vista or 7.
kitProtector can blocks system key combinations (Ctrl+Alt+Del, Ctrl+Esc, Alt+Tab, Ctrl+Shft+Esc, Win+..., Toggles keys, etc). Early it was possible only if you have PS/2 keyboards. Now you can attach USB keyboards to your computers.