copy
//0x28 bytes (sizeof)
struct _DRIVER_EXTENSION
{
    struct _DRIVER_OBJECT* DriverObject;                                    //0x0
    LONG (*AddDevice)(struct _DRIVER_OBJECT* arg1, struct _DEVICE_OBJECT* arg2); //0x8
    ULONG Count;                                                            //0x10
    struct _UNICODE_STRING ServiceKeyName;                                  //0x18
};