the HP Fortify plugin for Visual Studio 2010 is really easy to use

You will end up with an "HP Fortify" menu in Visual Studio and...

1. Analyze Source Code of Solution in the menu will crawl your source code and display results in an "Analysis Results" pane.
2. Generate Report ... will let you make a PDF of what is in the "Analysis Results" pane.

This has proved much easier to use than the standalone tools which we found did not want to crawl C#, and indeed perhaps they could not measure C# gremlins without access to the compiler.