Displays the balloon tip in the taskbar.
There seems to be issues with how long the Balloon tip takes to vanish even if you set a low duration (as show to be 3 seconds in the code below).
notifyIconMain.ShowBalloonTip(3000, "XYZ...", MyVar, ToolTipIcon.Info);
For more information see my blog post on this subject: http://blog.lyalin.com/2007/12/showballoontip-problem-in-notifyicon.html
The default nimum and maximum timeout values are enforced by the operating system and are typically 10 and 30 seconds - i.e you cannot go below 10 or above 30. However, I swear that lot of time it displayed more than 10 sec even the setting was 10.