This comprehensive and practical four-day course builds skills in .NETs XML processing APIschiefly parsing using XmlReader and the Document Object Model (DOM), writing XML streams using XmlWriter, transformations using XPath and XSLT, and the new LINQ to XML, all using the .NET Framework XML classes and the C# language. It also covers XML serialization according to XML Schema and the tight coupling between XML and ADO.NET. The course is intended for students with a working knowledge of XML who want to build XML applications or components using .NET and the C# language. Everything in the course adheres to W3C and .NET standards for highly portable code. Visual Studio 2010 with .NET 4.0 is used as the development environment. The course includes extensive programming examples, a progressively developed case study, and several tools for manipulating XML documents. All source code is in C# and is provided with the course. A separate Lab Manual provides detailed instructions for laboratory exercises with console and Windows Forms client programs. A parallel course, 4126, XML for Web Applications Using C#, has lab exercises with console and Web Forms client programs.