Code to draw the icon


private void MainForm_Load(object sender, System.EventArgs e)
{
	notifyIcon1.Text = DateTime.Today.DayOfWeek.ToString() + " " + 	DateTime.Now.ToString();

	ArrayList strMon = new ArrayList(); strMon.Add(" ");
	strMon.Add("Jan"); strMon.Add("Feb"); strMon.Add("Mar"); strMon.Add("Apr");
	strMon.Add("May"); strMon.Add("Jun"); strMon.Add("Jul"); strMon.Add("Aug");
	strMon.Add("Sep"); strMon.Add("Oct"); strMon.Add("Nov"); strMon.Add("Dec");
				
	string myDay = DateTime.Today.Day.ToString();
	int thisMonth = (int) DateTime.Today.Month;
	string myMonth = strMon[thisMonth].ToString();

	// here's where the icon gets assigned; see DrawIcon for details
	this.notifyIcon1.Icon = DrawIcon(myMonth, myDay); 
 
	oMenu = new System.Windows.Forms.ContextMenu();
	oMenu.MenuItems.Add("About " + Application.ProductName,	new EventHandler(About_Handler));  
	oMenu.MenuItems.Add("Exit",	new EventHandler(Exit_Handler)); 
	this.notifyIcon1.ContextMenu = oMenu;
} 



// here's where I draw the icon which will appear in the system tray
private Icon DrawIcon(string iconMonth, string iconDay)
{
	int dimension=16;
	Bitmap myBitmap = new Bitmap(dimension,dimension);

	Graphics myGraphics = Graphics.FromImage((Image)myBitmap); 
	myGraphics.SmoothingMode = SmoothingMode.AntiAlias; 

	Font myFont1 = new Font("Verdana",8,FontStyle.Regular,GraphicsUnit.Pixel);
	Font myFont2 = new Font("Verdana",9,FontStyle.Regular,GraphicsUnit.Pixel);

	myGraphics.FillRectangle(Brushes.Transparent, new Rectangle(0, 0, myBitmap.Width, myBitmap.Height));
				
	// create the green square
	Brush myBrush = Brushes.LimeGreen;
	myGraphics.FillRectangle(myBrush,0,0,dimension, dimension);

	// write the text in it
	myGraphics.DrawString(iconMonth,myFont1, new SolidBrush(Color.Black),0,0);
	myGraphics.DrawString(iconDay,myFont2, new SolidBrush(Color.Black),2,6);

	Icon myIcon = Icon.FromHandle(myBitmap.GetHicon());
	return myIcon;
}