Code reviews/analysis Tools

1. FxCOP
FxCop is an application that analyzes managed code assemblies (code that targets the .NET Framework common language runtime) and reports information about the assemblies, such as possible design, localization, performance, and security improvements.
FxCop is designed to be fully integrated into the software development cycle and is distributed as both a fully featured application that has a graphical user interface (FxCop.exe) for interactive work, and a command-line tool (FxCopCmd.exe) suited for use as part of automated build processes or integrated with Microsoft Visual Studio® .NET as an external tool.
You can download FxCop: http://www.microsoft.com/downloads/details.aspx?FamilyID=9aeaa970-f281-4fb0-aba1-d59d7ed09772&displaylang=en

2. StyleCOP
StyleCop is a free static code analysis tool from Microsoft that checks C# code for conformance to StyleCop's recommended coding styles and a subset of Microsoft's .NET Framework Design Guidelines. StyleCop analyzes the source code, allowing it to enforce a different set of rules from FxCop. The rules are classified into the following categories:

Documentation
Layout
Maintainability
Naming
Ordering
Readability
Spacing
StyleCop includes both GUI and command line versions of the tool.
You can download StyleCOP:http://code.msdn.microsoft.com/sourceanalysis/Release/ProjectReleases.aspx?ReleaseId=1425