| Platform SDK: Synchronization Manager | 
The QOCINFO structure is returned by the IsDestinationReachable function and provides Quality of Connection information to the caller.
typedef struct tagQOCINFO {
   DWORD     dwSize;
   DWORD     dwFlags;
   DWORD     dwInSpeed;
   DWORD     dwOutSpeed;
} QOCINFO, *LPQOCINFO;
  Windows NT/2000: Requires Windows 2000 (or Windows NT 4.0 with Internet Explorer 5 or later).
  Windows 95/98: Requires Windows 95 or later (with Internet Explorer 5 or later).