我的_NDIS_OPEN_BLOCK怎么没有MacBindingHandle？？？

下了个NDIS的过滤驱动来学习，可是编译的时候说： 'MacBindingHandle' : is not a member of '_NDIS_OPEN_BLOCK'，于是我找到NDIS.H一看，还真没有它，在网上找了一下_NDIS_OPEN_BLOCK，发现这个，但我的NDIS.H里为什么没有这个(我用的是XP的)：
struct _NDIS_OPEN_BLOCK
　　{
　　PNDIS_MAC_BLOCK MacHandle; // pointer to our MAC
　　NDIS_HANDLE MacBindingHandle; // context when calling MacXX funcs
　　PNDIS_ADAPTER_BLOCK AdapterHandle; // pointer to our adapter
　　PNDIS_PROTOCOL_BLOCK ProtocolHandle; // pointer to our protocol
　　NDIS_HANDLE ProtocolBindingContext;// context when calling ProtXX funcs
　　PNDIS_OPEN_BLOCK AdapterNextOpen; // used by adapter\''''s OpenQueue
　　PNDIS_OPEN_BLOCK ProtocolNextOpen; // used by protocol\''''s OpenQueue
　　PFILE_OBJECT FileObject; // created by operating system
　　BOOLEAN Closing; // TRUE when removing this struct
　　BOOLEAN Unloading; // TRUE when processing unload
　　BOOLEAN NoProtRsvdOnRcvPkt; // Reflect the protocol_options
　　NDIS_HANDLE CloseRequestHandle; // 0 indicates an internal close
　　KSPIN_LOCK SpinLock; // guards Closing
　　PNDIS_OPEN_BLOCK NextGlobalOpen;
　　//
　　// These are optimizations for getting to MAC routines. They are not
　　// necessary, but are here to save a dereference through the MAC block.
　　//
　　SEND_HANDLER SendHandler;
　　TRANSFER_DATA_HANDLER TransferDataHandler;
　　//
　　// These are optimizations for getting to PROTOCOL routines. They are not
　　// necessary, but are here to save a dereference through the PROTOCOL block.
　　//
　　SEND_COMPLETE_HANDLER SendCompleteHandler;
　　TRANSFER_DATA_COMPLETE_HANDLER TransferDataCompleteHandler;
　　RECEIVE_HANDLER ReceiveHandler;
　　RECEIVE_COMPLETE_HANDLER ReceiveCompleteHandler;
　　//
　　// Extentions to the OPEN_BLOCK since Product 1.
　　//
　　RECEIVE_HANDLER PostNt31ReceiveHandler;
　　RECEIVE_COMPLETE_HANDLER PostNt31ReceiveCompleteHandler;
　　//
　　// NDIS 4.0 extensions
　　//
　　RECEIVE_PACKET_HANDLER ReceivePacketHandler;
　　SEND_PACKETS_HANDLER SendPacketsHandler;
　　//
　　// More NDIS 3.0 Cached Handlers
　　//
　　RESET_HANDLER ResetHandler;
　　REQUEST_HANDLER RequestHandler;
　　//
　　// Needed for PnP
　　//
　　UNICODE_STRING AdapterName; // Upcased name of the adapter we are bound to
　　};

你找一下你的DDK库里自带的NDIS.H，我的只找到MacHandle，把MacBindingHandle换成MacHandle，编译也通过了，且实现的功能和其他人编译成功具备的功能一样 不知道是不是MacHandle是MacBindingHandle之前的实现版本？