یک منو ایجاد کنید و به نوتیفیکیشن بدید
System.Windows.Forms.NotifyIcon ni = new System.Windows.Forms.NotifyIcon();
ni.Visible = true;
ni.Text = "Text";
//ni.Icon = SystemIcons.Application;
ni.Icon = new Icon(@"favicon.ico");
ni.BalloonTipTitle = "BalloonTipTitle";
ni.BalloonTipText = "BalloonTipText";
ni.ShowBalloonTip(1000);
ToolStripItem exitItem = new ToolStripButton("خروج");
exitItem.Click += delegate(object sender, EventArgs args)
{
Application.Exit();
};
ContextMenuStrip menuStrip = new ContextMenuStrip {RightToLeft = RightToLeft.Yes};
menuStrip.Items.Add(exitItem);
ni.ContextMenuStrip = menuStrip;