New for SideShow Drivers
The Windows Driver Kit (WDK) that is released with Windows 7 includes a more robust mechanism for sending events and more efficient asynchronous command completion for Windows SideShow drivers.
SideShow drivers that use the Windows 7 interface to send events ensure that events are reliably sent to the appropriate gadgets. SideShow drivers for Windows 7 should call ISideShowClassExtension2::PostEvent to raise driver events.
Build date: 12/17/2013