Very interesting post - thanks for sharing it. Filter drivers and IRPs really are the worst architectural blunder MS made in Windows. They took what really sho

Very interesting post - thanks for sharing it. Filter drivers and IRPs really are the worst architectural blunder MS made in Windows. They took what really should be a corner-case (driver interposition) and put it on the development path of every hardware driver programmer to trip over. We got KMDF eventually, but that took years...