Displaying a pop-up notification window

How do you create a window that pops up from system tray notification area vertically upwards and displays a message? for example - In MSN, it displays it when 开发者_如何学Csomeone gets online/offline.

Create a window with the look you want, and call AnimateWindow to get the pop-in effect. AnimateWindow doesn't really like windows with anything except a simple border.

how about this? Customizable Alert Window