Visual Studio.Net 2003 doesn't come out of the box with a good way to browse and navigate your code. Solution Explorer is ok for managing files and projects, but what about your classes? Class View works, if you don't mind having to drill down 5 levels each and every time you want to browse a class. SoliNav combines a file-oriented class view with a powerful context-sensitive navigation engine to help keep your mind focused on your object model.