The code samples, which demonstrate how to use many of the new "Longhorn" technologies, are provided in Visual Basic, C#, and the Managed Extensions for C++. You can locate and view samples, organized by technology, by choosing the Samples tab in the documentation viewer. For each sample, you can view the source file, read a topic describing the sample, and copy the sample to your local hard drive to build and run the sample. You can build the Visual Basic and C# samples using the commmand line compilers included in "Longhorn" or you can use the PDC edition of the "Whidbey" release of Microsoft Visual Studio® .NET. To compile and run the C++ samples, you must use the PDC edition of the "Whidbey" release of Visual Studio .NET. Samples that ship in the .NET Framework SDK are not included in this release of the "Longhorn" SDK. However, they are available in the "Whidbey" release of Visual Studio .NET.