A code analysis tool that checks for conformance to the .NET Framework Design Guidelines. FxCop inspects assemblies for more than 175 design defects. [Freeware]

Merges the assemblies and XML documentation files produced by csc.exe and creates a compiled HTML Help file enabling browse own libraries just like the .NET Framework Class Library. [Open source, GPL]

Generates a data-access tier and business facade/support tier in C# or VB.NET using an existing database schema set. Product information and support. [Commercial, trial version]

A free editor for C# and VB.NET projects on Microsoft's .NET platform. [GPL]

A .NET based build tool. A replacement for make based on Ant.

Performance and memory optimization tool for Microsoft's .NET framework and Visual Studio .NET environment.

An object-to-relational mapping and code generation tool. Map relational tables to data objects, embed sophisticated SQL in them, and generate code for .NET (C# and VB.NET).

Categorized directory of the existing development tools, libraries and add-ins for .NET.

A Rapid Application Development tool with Visual Studio .NET integration

.NET data provider suite built with 100% managed code, delivering data connectivity for Sybase, Oracle, DB2 and SQL Server.