Explore COM Interoperability, also known as COM Interop. COM Interop is the means to which COM objects can be used in a .NET application and how .NET objects can be built to appear to be COM objects.
Latest COM Interop Articles
.NET Delegate Event Model vs COM Connection Points
Take a dip into how the Connection Points Event Handling mechanism in Classic COM Components can be used by .NET applications to receive event Notifications via the COM Interop.
Understanding Classic COM Interoperability w/.NET Apps
Aravind, who contributed mightily to the COM interoperability chapter of the Microsoft Press "Inside C#" book, writes this fantastic tutorial on how to use COM components from your .NET C# applications!
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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 the Clipboard in VB.NET and C#
It might be strange to find an entire article dedicated to the Clipboard object but the sad fact is people still do not know what the Clipboard object is, how to differentiate between copied information, and how to use it. Hannes du Preez demonstrates its proper use, to eliminate any remaining confusion.

Learn About Asynchronous HTTP Modules and HTTP Handlers in Asp.Net 4.5
One of the good things about Asp.Net 4.5 is that you can introduce asynchronous processing in web applications that you develop with little effort. This article takes you through the asynchronous HTTP Modules and Handlers in Asp.Net 4.5.