_ADAPTER_EVENT

struct _ADAPTER_EVENT
{
	HANDLE		hAdapterHandle;
	HANDLE		hEvent;
};

hAdapterHandle
The adapters handle value.

hEvent
Win32 event handle or NULL if you want to release the previously loaded event object. For Windows 9x/ME it should be Ring0 handle. To convert Ring3 handle use OpenVxDHandle call from kernel32.dll. Refer ndisapi.dll source code for the details.