For those who don't have the desire or time to become experts on Windows security, follow this demonstration of using various .NET classes to test for a user's inclusion in one or more security groups.
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COM Security Primer, Part I
In the first of a two-part series, Jeff Prosise covers the all-important issues of COM security in terms of activation security and access security.
COM Security Primer, Part II
In the second of a two-part series Jeff Prosise focuses on remote server process identity and authentication.
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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.

Parsing HTML the Easy Way
Use the IE web broswer and CsQuery for easy HTML parsing in a WinForms app.

Persisting Colors and Other Settings with Visual Basic
Discover two ways that you can use Visual Basic to save colors.
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.