This simple class CTBalloon which is derived from CWnd can be used to show the tray balloon similiar to the one that appears with MSN messenger.
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Tutorial - Write Icon in the Taskbar Window
This simple program code show how to write or remove an icon from the window taskbar and add a tool tip text. It also show how you can define a user message for trap events generate with mouse action (click on the icon).
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MFC Integration with the Windows Transactional File System (TxF)
The Transactional File System (TxF), which allows access to an NTFS file system to be conducted in a transacted manner through extensions to the Windows SDK API. MFC 10, has been extended to support TxF and related technologies. This support allows existing MFC applications to be easily extended to support kernel transactions.

Services Made Easy
Discover how to easily create and add WIN32 Services in .NET. You’ll also discover the Topshelf toolkit.

Working with Configuration Files and Visual Basic
Learn how to store, modify, and retrieve information from a configuration file in Visual Basic.

Working with State Machines in the .NET Framework
Arun Karthick introduces you to the state machine model and shows you how to create a simple working state machine sample using the .NET framework in the C# language.