IOCTL_COMMON_MQ_CREATE_EXT_V1
sizeof (IOCTL_COMMON_MQ_CREATE_EXT_V1) + IOCTL_HEADER_SZ;
sizeof (IOCTL_COMMON_MQ_CREATE_EXT_V1);
qp1 = (IOCTL_COMMON_MQ_CREATE_EXT_V1 *)
IOCTL_COMMON_MQ_CREATE_EXT_V1 *qp1;
IOCTL_COMMON_MQ_CREATE_EXT_V1 MQCreateExtVar1;