Under Windows 95 and Windows NT 3.51, it is possible to right-click on items and get the "What's This?" window to appear. To set this up in Visual Basic, you need to use a pop-up menu.

Example

1. Start Visual Basic 4.0 or, if it is already running, click New Project on the File menu.
2. Set the WhatsThisHelp and WhatsThisButton properties for Form1 to TRUE.
3. Add the following code to reference the Hotspot Editor help file to the Form_Load procedure:Private Sub Form_Load()
   ' This should point to the hc directory 
   'under the VB4 directory 
   App.HelpFile = "c:\vb\hc\shed.hlp"
   End Sub       

4. Add two menu items to Form1 using the following as a guide:

   Menu Property Value
   ----------------------------------------------------
   WhatsThis Caption WhatsThis
   WhatsThis Name mnuWhatsThis
   WhatsThis Visible False
   
   
   What's This? Caption What's This?
   What's This? Name mnuWhatsThisHelp
    

5. Indent "What's This?" to make it a sub-menu of WhatsThis by pressing the right-arrow button on the Menu Editor.
6. Add the following code to the General Declarations section of Form1: Public ThisControl as control

7. Add the following code to the mnuWhatsThisHelp_Click procedure:       Private Sub mnuWhatsThisHelp_Click()
             ThisControl.ShowWhatsThis
          End Sub
             

8. Add a Command Button control to the form and set the following Properties:WhatsThisHelpID = 1
   HelpContextID = 5      

9. Add following code to the Command1_MouseUp event:Private Sub Command1_MouseUp(Button As Integer, Shift As Integer, _
   X As Single, Y As Single)
   If Button = vbRightButton Then
       Set ThisControl = Command1
       PopupMenu mnuWhatsThis 
   End If 
   Set ThisControl = Nothing 
   End Sub       

10. Run the application. Right-click on the Command button and then left-Click on the "What's This?" popup to bring up 
    the Help file.