ESRI.ArcGIS.Geoprocessor.Geoprocessor geoprocessor = new Geoprocessor();

                ESRI.ArcGIS.DataManagementTools.Dissolve d = new ESRI.ArcGIS.DataManagementTools.Dissolve();

d.in_features = dissolveTable;

d.out_feature_class = System.IO.Path.Combine(dataset.Workspace.PathName, OutputFeatureClassName);

d.dissolve_field = DissolveAttributesName;

//d.statistics_fields = "";

d.multi_part = "MULTI_PART";

geoprocessor.Execute(d, null);