Invoke notifier's ShowContextMenu on left click

WpkgNotifier/TrayNotifier.cs

 using System;
 using System.Diagnostics;
+using System.Reflection;
 using System.ServiceModel;
 using System.Windows.Forms;
 
@@ -42,6 +43,19 @@ namespace WpkgNotifier
             notifyIcon.ContextMenu = new ContextMenu(new MenuItem[]
                 { syncMenuItem, queryMenuItem, exitMenuItem });
             notifyIcon.Visible = true;
+
+            // reflectively call our ShowContextMenu method upon left-click
+            notifyIcon.MouseDown += (sender, e) =>
+            {
+                if (e.Button == MouseButtons.Left)
+                {
+                    MethodInfo mi = typeof(NotifyIcon).GetMethod("ShowContextMenu", BindingFlags.Instance | BindingFlags.NonPublic);
+                    if (mi != null)
+                    {
+                        mi.Invoke(notifyIcon, null);
+                    }
+                }
+            };
         }
 
         private void OpenMessageChannel()