public void LoadLayers()
        {
            string[] files = System.IO.Directory.GetFiles(OPUSParams.shapedir, "Rural_Clients.*");
            foreach (string s in files){System.IO.File.Delete(s);}
            files = System.IO.Directory.GetFiles(OPUSParams.shapedir + "\\rural_backup", "Rural_Clients.*");
            foreach (string s in files)
            {
                string filename = System.IO.Path.GetFileName(s);
                string destFile = System.IO.Path.Combine(OPUSParams.shapedir, filename);
                System.IO.File.Copy(s, destFile, true);
            }
            System.Windows.Forms.Application.DoEvents();

            roads =
                new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\OpusTrack-roads.shp", ShapeFileReadWriteMode.ReadWrite);
            roads.ZoomLevelSet.ZoomLevel08.CustomStyles.Add(LineStyles.LocalRoad4);
            roads.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            // Draw a feature based on a value   
            ValueStyle valueStyle = new ValueStyle();
            valueStyle.ColumnName = "PRE_TYPE";
            valueStyle.ValueItems.Add(new ValueItem("HIGHWAY", LineStyles.Interstate4));
            roads.ZoomLevelSet.ZoomLevel08.CustomStyles.Add(valueStyle);
            roads.Open();
            roadextent = roads.GetBoundingBox();
            roads.Close();
            roads.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();
            winformsMap1.CurrentExtent = roadextent;
            winformsMap1.Refresh();

            boundary = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\OpusTrack-boundary.shp");
            boundary.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.SimpleColors.Transparent, GeoColor.SimpleColors.Red);
            boundary.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            boundary.IsVisible = true;
            System.Windows.Forms.Application.DoEvents();

            rms = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\rm.shp");
            rms.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Green, GeoColor.StandardColors.Black);
            rms.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            rms.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            irs = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\ir.shp");
            irs.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Orange, GeoColor.StandardColors.Gray);
            irs.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            irs.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            townships = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\township.shp");
            townships.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Maroon, GeoColor.StandardColors.Gray);
            townships.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            townships.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            sections = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\section.shp");
            sections.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Magenta, GeoColor.StandardColors.Gray);
            sections.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            sections.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            qsections = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\qs.shp");
            qsections.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.StandardColors.Purple, GeoColor.StandardColors.Gray);
            qsections.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            qsections.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            lakes = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\lakes.shp");
            lakes.ZoomLevelSet.ZoomLevel08.DefaultAreaStyle = AreaStyles.Water1;
            lakes.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            lakes.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            rivers = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\rivers.shp");
            rivers.ZoomLevelSet.ZoomLevel08.DefaultLineStyle = LineStyles.Utility3;
            rivers.ZoomLevelSet.ZoomLevel08.DefaultLineStyle.OuterPen = new GeoPen(GeoColor.StandardColors.Blue);
            rivers.ZoomLevelSet.ZoomLevel08.DefaultLineStyle.OuterPen.Width = 1;
            rivers.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            rivers.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            railways = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\railways.shp");
            railways.ZoomLevelSet.ZoomLevel08.DefaultLineStyle = LineStyles.Railway3;
            railways.ZoomLevelSet.ZoomLevel08.DefaultLineStyle.OuterPen = new GeoPen(GeoColor.StandardColors.Brown);
            railways.ZoomLevelSet.ZoomLevel08.DefaultLineStyle.OuterPen.Width = 1;
            railways.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            railways.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            urban = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\um.shp");
            urban.ZoomLevelSet.ZoomLevel08.DefaultPointStyle = PointStyles.Capital3;
            urban.ZoomLevelSet.ZoomLevel08.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.StandardColors.LimeGreen);
            urban.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level13;
            urban.ZoomLevelSet.ZoomLevel14.DefaultPointStyle = PointStyles.Capital3;
            urban.ZoomLevelSet.ZoomLevel14.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.StandardColors.LimeGreen);
            urban.ZoomLevelSet.ZoomLevel14.DefaultTextStyle = TextStyles.City3("PLACENAME");
            urban.ZoomLevelSet.ZoomLevel14.DefaultTextStyle.BestPlacement = true;
            urban.ZoomLevelSet.ZoomLevel14.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            urban.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            privateent = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\pe.shp");
            privateent.ZoomLevelSet.ZoomLevel08.DefaultPointStyle = PointStyles.Capital3;
            privateent.ZoomLevelSet.ZoomLevel08.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.StandardColors.Red);
            privateent.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            privateent.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            rural = new ShapeFileFeatureLayer(OPUSParams.shapedir + "\\Rural_Clients.shp", ShapeFileReadWriteMode.ReadWrite);
            rural.ZoomLevelSet.ZoomLevel08.DefaultPointStyle = PointStyles.City1;
            rural.ZoomLevelSet.ZoomLevel08.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.StandardColors.Brown);
            rural.ZoomLevelSet.ZoomLevel08.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            rural.Open();
            LoadClients();
            rural.Close();
            rural.IsVisible = false;
            System.Windows.Forms.Application.DoEvents();

            layerOverlay.Layers.Add("boundary", boundary);
            layerOverlay.Layers.Add("rms", rms);
            layerOverlay.Layers.Add("irs", irs);
            layerOverlay.Layers.Add("townships", townships);
            layerOverlay.Layers.Add("sections", sections);
            layerOverlay.Layers.Add("qsections", qsections);
            layerOverlay.Layers.Add("lakes", lakes);
            layerOverlay.Layers.Add("rivers", rivers);
            layerOverlay.Layers.Add("railways", railways);
            layerOverlay.Layers.Add("roads", roads);
            layerOverlay.Layers.Add("urban", urban);
            layerOverlay.Layers.Add("privateent", privateent);
            layerOverlay.Layers.Add("rural", rural);
            winformsMap1.Overlays.Add("maps", layerOverlay);
            System.Windows.Forms.Application.DoEvents();

            highlightPolygon = new InMemoryFeatureLayer();
            highlightPolygon.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.SimpleColors.Transparent, GeoColor.SimpleColors.Yellow);
            highlightPolygon.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.OutlinePen.Width = 2;
            highlightPolygon.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;

            highlightLine = new InMemoryFeatureLayer();
            highlightLine.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyles.Utility3;
            highlightLine.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen = new GeoPen(GeoColor.StandardColors.Yellow);
            highlightLine.ZoomLevelSet.ZoomLevel01.DefaultLineStyle.OuterPen.Width = 2;
            highlightLine.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;

            highlightPoint = new InMemoryFeatureLayer();
            highlightPoint.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.City1;
            highlightPoint.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.StandardColors.Yellow);
            highlightPoint.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;

            highlightClient = new InMemoryFeatureLayer();
            highlightClient.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.City1;
            highlightClient.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.StandardColors.Yellow);
            highlightClient.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;

            LayerOverlay highlightOverlay = new LayerOverlay();
            highlightOverlay.Layers.Add("HighlightPolygon", highlightPolygon);
            highlightOverlay.Layers.Add("HighlightLine", highlightLine);
            highlightOverlay.Layers.Add("HighlightPoint", highlightPoint);
            highlightOverlay.Layers.Add("HighlightClient", highlightClient);

            winformsMap1.Overlays.Add("HighlightOverlay", highlightOverlay);
            //winformsMap1.CurrentExtent = roadextent;
            winformsMap1.Refresh();
            System.Windows.Forms.Application.DoEvents();
        }


  452,892KB OpusTrack-boundary.shp
4,201,604KB OpusTrack-roads.shp 
  221,216KB pe.shp
5,828,332KB qs.shp
   36,216KB railways.shp
   85,732KB rivers.shp
  863,024KB rm.shp
      240KB Rural_Clients.shp
2,351,232KB section.shp
  732,568KB township.shp
    5,000KB um.shp