struct _DEVICE_HANDLER_OBJECT {
short Type;/* 0x0 2 */
unsigned short Size;/* 0x2 2 */
unsigned long SlotNumber;/* 0x8 4 */
unsigned long InstanceOrdinal;/* 0x14 4 */
};
/* source: Windows 2000 RC2 DDK Alpha libcntpr.lib CodeView type records; build 2128 per the DDK's ntverp.h */