Microsoft renames and upgrades two Forefront security servers.
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Working with Forms
Forms are how your users talk to your scripts. To get the most out of PHP, you must master forms. The first thing you need to understand is that although PHP makes it easy to access form data, you must be careful of how you work with the data.
PHP Tip: Validating a Credit Card
Learn how to make sure the credit card you're accepting isn't fraudulent.
Computing a MS-CHAPv2 Client Response
Learn about a RFC2759-compliant implementation of the MS-CHAPv2 response calculation algorithm.
Keyboard Spy: Implementation and Counter Measures
Learn to develop hook-based key loggers and hook-safe software.
Security Certificates Treatment with CryptoAPI
How to add security certificates to certificates stores, as well as how to get information from them. This uses CryptoAPI.
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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.

LINQ to Objects Refresher
LINQ is not only for database access; it’s useful in all manner of scenarios. Read this quick refresher to learn more.

Creating Simple Classes and Objects with Visual Basic
Learn how to create your own class and create objects representing that class using 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.