private static IEnumerable QueryHistory()
         {
             // Get a reference to our Team Foundation Server. 
             String tfsName = @" http://ps4474:8080 ";
             TeamFoundationServer tfs = new TeamFoundationServer(tfsName);
             // Get a reference to Version Control. 
             VersionControlServer versionControl =
                                 (VersionControlServer)tfs.GetService(typeof(VersionControlServer));
             string path = @"$/TempTeamProject2";
             VersionSpec version = VersionSpec.Latest;
             int deletionId =0;
             RecursionType recursion = RecursionType.Full;
             string user = "mahesh_lambe";
             VersionSpec versionFrom = VersionSpec.ParseSingleSpec("115894", "mahesh_lambe"); //keep it 'null' for first version
             VersionSpec versionTo = VersionSpec.ParseSingleSpec("109014", "mahesh_lambe"); //keep it 'null' for latest version
             int maxCount = Int32.MaxValue;
             bool includeChanges = true;
             bool slotMode = true;
             bool includeDownloadInfo = true;
            IEnumerable enumerable =
                         versionControl.QueryHistory(path,
                                         version,
                                         deletionId,
                                         recursion,
                                         user,
                                         versionFrom,
                                         versionTo,
                                         maxCount,
                                         includeChanges,
                                         slotMode,
                                         includeDownloadInfo);
            return enumerable;
         }

~ Mahesh Lambe
http://mahiways.spaces.live.com/
http://maheshlambe.blogspot.com/