NotifyIcon NI=new NotifyIcon();
NI.Text=<The Tool Tip Text To Be Displayed>;
After setting it, make sure to set NotifyIcon.Visible=true.
Also, can get an Icon via doing: NotifyIcon1.Icon=this.Icon;
Class NotifyIcon has several Events which the user can add EventHandlers, and respond to, such as Click, DoubleClick, MouseDown, MouseMove, & MouseUp.
A Common use to when the NotifyIcon is clicked,
is to open the Application's Main Form.
A Common use to when the NotifyIcon is rightclicked,
is to show a conetxt menu with options relevant for the application, or to what the notifyicon represents.