How to place an icon in system tray and also update the imag(編號:3854)

Firstly, I would like to know how to place an icon on system tray by using VB 6.0 Then,when the icon sit in sysTray, how to update the image and tool tips of the icon without unloading the form. Finally, when we right-clicked, there will be a popup menu appeared. Pls post the answer or email me if anyone knows. Thanks a lot.