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.
.NET Framework: Collections and Generics
The original release of the .NET Framework included collections as .NET was introduced to the Microsoft programming world. The .NET Framework 2.0 introduced generics to complement the System.Collections namespace and provide a more efficient and well performing option. Read on to learn more...

Working with Queues and Stacks
Apart from Hashtables, queues and stacks are probably the most common Collection classes. This article explains the ins and outs of queues and stacks.
Implementing a WCF Message Contract
WCF implementations normally take two different approaches; a Document style or an API style. Document style implementations are more flexible and often easier to extend and version. Also, Document style or rather, Message Contract service implementations, work well between systems with a shared message assembly. Jeffrey Juday guides you through architecting a WCF Message Contract implementation.