'WIthin the LoadAWMSLayer.aspx sample application 'Comment out these lines of code 'Map1.BackgroundMap.WmsMap.Name = "Wms Layer" 'Map1.BackgroundMap.WmsMap.ServerUri = New Uri("http://wmssamples.thinkgeo.com/WmsServer.aspx") 'Map1.BackgroundMap.WmsMap.Parameters.Add("layers", "Countries02,USStates,USMajorCities") 'Repalce them with this code Dim MyWMSLayer As New WmsImageLayer(New Uri("http://wmssamples.thinkgeo.com/WmsServer.aspx")) MyWMSLayer.ActiveLayerNames.Add("Countries02") MyWMSLayer.ActiveLayerNames.Add("USStates") MyWMSLayer.ActiveLayerNames.Add("USMajorCities") MyWMSLayer.UpperThreshold = Double.MaxValue MyWMSLayer.LowerThreshold = 0