There's a new article up over on the MSDN site that discusses various aspects of HTTP security for ASP.NET based web services. It starts by talking about how the simplest approach to protecting data communicated via SOAP is using either SSL 2.0 or 3.0 using client certificates. Then it goes into authentication using various authentication schemes (e.g. NTLM, Digest, Basic). Finally they discuss the use of declaritive code access security to ensure that only a finite set of authenticated principals can access your web methods.

C# Input/Output Classes Simplified

There's a nice little article over on the O'Reilly Network that basically covers all the different methods of working with I/O in .NET. It's a great introduction to the System.IO namespace. My only complaint is the title of the article since really it has nothing to do with C# specifically other than the fact that that's the language the author chose to write the samples in.

Microsoft .NET Framework Service Pack 2 provides the latest updates to the .NET Framework. Service Pack 2 is highly recommended for all users of the .NET Framework, including customers of Visual Studio .NET. [Sam Gentile's Radio Weblog]

This is really cool, but right now the link to the details about what's been fixed/changed is broken. I think I'm going to hold off installing until I can get some more information.