| Platform SDK: Quality of Service | 
The QOS object RSVP_ADSPEC provides a means by which information describing network devices along the data path between sender and receiver, pertaining to RSVP functionality and available services, is provided or retrieved.
typedef struct _RSVP_ADSPEC  {
  QOS_OBJECT_HDR    ObjectHdr;        // object header 
  AD_GENERAL_PARAMS GeneralParams;    // contains general characterization parameters
  ULONG             NumberOfServices; // number of services
  CONTROL_SERVICE   Services[1];      // list of supported services
} RSVP_ADSPEC, *LPRSVP_ADSPEC;
  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 98.
  Header: Declared in Qossp.h.