KDriverManagedQueueEx类未定义问题

 小弟用武安河书上例子定义
class Test9052Device_DriverManagedQueue : public KDriverManagedQueueEx
{
public:
    SAFE_DESTRUCTORS;
    VOID StartIo(KIrp I);
};

Test9052Device_DriverManagedQueue m_DriverManagedQueue;

编译程序时出下面错误
e:\Test9052Device\Test9052Device\driver\Test9052Device.h(60) : error C2504: 'KDriverManagedQueueEx' : base class undefined

那位大侠能指点下啊
小弟用的DriverStudio3.2 +vc.net2003+DDKXP1环境下写的程序。