> Loading a kernel mode binary doesn't require a WHQL cross-signature, > but WHQL will disable some yellow warnings otherwise shown to the > user. WHQL is very expensive, depends on the type of driver, for what > I was doing it was in the order of $2k/test. Every new version of the > binary required a new test. Other types of drivers are cheaper or more > expensive, we never bothered with WHQL, it was too expensive for us. > There was no WHQL option for file system and I believe that stands > true today as well.
i have no explaination for the differences you see, but this is even more pointless than a bike shed argument. since in the end, the ms machinery painted the shed whatever color it wanted and now even it itself is locked in for eternity. :-) - erik