I have a lower filter driver that I would like to attach
to the DiskDrive device class ({4D36E967-E325-11CE-BFC1-
08002BE10318}). Unfortunately, when I try to load it on
this device class, the system will crash during the boot
process. The stack trace indicates the fault occurs in nt!
IopMarkBootPartition. It does not seem that any code in
the driver itself, even DriverEntry, is ever getting
called. The same drive will load and function if it is
attached to the CDROM device class ({4D36E965-E325-11CE-
BFC1-08002BE10318}). Is there some trick to loading lower
filters on DiskDrive device that I don't know about?