Download the project, they are archived at the bottom of the lesson they pertain to. I have also labelled the files with the program you should use to load the project after it has been unzipped. Some lessons contain many projects while others have none. Make sure you download and save the file rather than opening it directly from the browser.

Extract the zip file, it must be completely extracted. You cannot view the files unless they are are all taken from the archive. It will contain a .sln file. This is a Solution file and contains a list of all of the folders/files that make up the program.

Double clicking the icon may give you the choice shown in the screenshot. This is if you've installed the both the Visual Studio C# 2008 and the Visual Web Developer Express 2008. I will always tell you what you need to use to open all source files on this site. If you find one without let me know!

The project will duly open. You can run the project by clicking the play button on your Visual Studio or by hitting F5.