Microsoft Source Code Analysis Utility : StyleCop

StyleCop is a Microsoft Utility used to make the C# Developer(s) to follow a set of consistent rules in the Source Code being developed.

StyleCop analyzes C# source code to enforce a set of style and consistency rules. It can be run from inside of Visual Studio or integrated into an MSBuild project.

StyleCop can be downloaded here.

There is a good article on How to Use StyleCop in CodeProject.

StyleCopCmd
The StyleCopCmd project provides both a command-line interface and custom NAnt task interface for Microsoft's StyleCop.

StyleCopCmd can be downloaded here.