The DS_REPL_CURSOR_3W structure defines a replication cursor for a given NC replica. This structure is a concrete representation of a ReplUpToDateVector value; it is a superset of DS_REPL_CURSOR_2.

 typedef struct {
   UUID uuidSourceDsaInvocationID;
   USN usnAttributeFilter;
   FILETIME ftimeLastSyncSuccess;
   [string] LPWSTR pszSourceDsaDN;
 } DS_REPL_CURSOR_3W;

uuidSourceDsaInvocationID: The invocation ID of a DC.

usnAttributeFilter: The USN at which an update was applied on the DC.

ftimeLastSyncSuccess: The time at which the last successful replication occurred from the DC identified by uuidDsa. Used for replication latency reporting only.

pszSourceDsaDN: The DN of the nTDSDSA object with an invocationId of uuidSourceDsaInvocationID.