def __init__(self):
        vstruct.VStruct.__init__(self)
        self.ListEntry = LIST_ENTRY()
        self.PacketType = v_uint32()
        self.KeyContext = v_ptr32()
        self.ApcContext = v_ptr32()
        self.IoStatus = v_uint32()
        self.IoStatusInformation = v_uint32()
        self.MiniPacketCallback = v_ptr32()
        self.Context = v_ptr32()
        self.Allocated = v_uint8()
        self._pad0028 = v_bytes(size=3)