If you observe there is a help button before close button. To get help on options of “Print on Both Sides” you would need to click on help button first and then click on the area on which you want to see the help. above picture shows help text for the options of “Print on Both Sides”. If you would like to get the help using keyboard you can use F1 key.

Help button can be displayed only if minimize button and maximize button both are not shown unless you want go with custom buttons. below is the way if you want to get Help button for windows forms.

 
In this sample demo I want to have a checkbox and need to show help when I click on F1 on check box. So I created a form which country check box and help label as show in adjacent picture.

Below is the code for your code bind file.

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial classForm1: Form
   {
        publicForm1()
        {
            InitializeComponent();
        }

        private void Form1_Load(objectsender, EventArgs e)
        {
            this.Text = "Help Button Demo Form";
            lblHelp.Text = "Press F1 on any component to get Instant Help";

            this.HelpButton = true;
            this.MaximizeBox = false;
            this.MinimizeBox = false;

            chkCountry.Tag = "Check or Uncheck Coutry Check Box";
            chkCountry.HelpRequested += newHelpEventHandler(chkCountry_HelpRequested);
            chkCountry.MouseLeave += newEventHandler(chkCountry_MouseLeave);
        }

        void chkCountry_HelpRequested(objectsender, HelpEventArgs hlpevent)
        {
            ControlrequestingControl = (Control)sender;
            lblHelp.Text = (string)requestingControl.Tag;
            hlpevent.Handled = true;
        }

        void chkCountry_MouseLeave(objectsender, EventArgs e)
        {
            lblHelp.Text = "Press F1 on any component to get Instant Help";
        }
    }
}