Ged,
Strage because OS know drivers versions and should tell me directly without hacks like get it from driver IOCL(extra work) or from file metadata the (unreliable). I like simplicity. Like eveone, I think.
The good way for PNP driver: I can just execute WMI query “Select DriverVersion from Win32_PnPSignedDriver where DeviceName =‘xxx’” and bingo I have version from the OS and this is simple and reliable. So I am hoping the someone knows something simular for minifilter(file system driver). It looks reasonable that filter manager could tell minifilter version, but don’t see such api.