diff --git a/Testing/Demo.Clouds/MainForm.cs b/Testing/Demo.Clouds/MainForm.cs
new file mode 100644
--- /dev/null
+++ b/Testing/Demo.Clouds/MainForm.cs
@@ -0,0 +1,65 @@
+using System;
+using System.Windows.Forms;
+using GMap.NET;
+using GMap.NET.WindowsForms;
+using GMap.NET.MapProviders;
+
+namespace CloudsDemo
+{
+   public partial class MainForm : Form
+   {
+      // clouds boundaries
+      readonly PointLatLng gtl = new PointLatLng(50.4066263673011, -127.620375523875);
+      readonly PointLatLng gbr = new PointLatLng(21.652538062803, -66.517937876818);
+
+      readonly GMapOverlay mainOverlay;
+      readonly GMapImage clouds;
+
+      public MainForm()
+      {
+         InitializeComponent();
+
+         if(!DesignMode)
+         {
+            try
+            {
+               System.Net.IPHostEntry e = System.Net.Dns.GetHostEntry("www.bing.com");
+            }
+            catch
+            {
+               mapControl.Manager.Mode = AccessMode.CacheOnly;
+               MessageBox.Show("No internet connection avaible, going to CacheOnly mode.", "GMap.NET - CloudsDemo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+            }
+
+            mapControl.MapProvider = GMapProviders.BingSatelliteMap;
+            mapControl.OnMapZoomChanged += new MapZoomChanged(mapControl_OnMapZoomChanged);
+
+            mainOverlay = new GMapOverlay("top");
+            mapControl.Overlays.Add(mainOverlay);
+
+            clouds = new GMapImage(gtl);
+            clouds.Image = Properties.Resources.USOverlay;
+            mainOverlay.Markers.Add(clouds);
+         }
+      }
+
+      void mapControl_OnMapZoomChanged()
+      {
+         if(clouds != null)
+         {
+            var tl = mapControl.FromLatLngToLocal(gtl);
+            var br = mapControl.FromLatLngToLocal(gbr);
+
+            clouds.Position = gtl;
+            clouds.Size = new System.Drawing.Size((int)(br.X - tl.X), (int)(br.Y - tl.Y));
+         }
+      }
+
+      protected override void OnShown(EventArgs e)
+      {
+         base.OnShown(e);
+
+         mapControl.SetZoomToFitRect(RectLatLng.FromLTRB(gtl.Lng, gtl.Lat, gbr.Lng, gbr.Lat));
+      }
+   }
+}