eXtensible C# :
Provides attribute-based declarative assertions, partial based code
verification and obfuscation for C#. Free download.
Convert VB.NET code to C# code at the project and code snippet levels.
Description, sample screenshots, and ordering information. By Tangible
Software Solutions Inc.
A C# library for dealing with numerics on the .NET platform. It contains
various mathematical structures such as vectors, matrices, complex numbers
and contains methods for numerical integration, random numbers generation
and other object-oriented numeric functions.
A C# code generator. It produces code from a datasource and add managing
persistance methods (Add/Modify/Remove) and create Visual Studio Project.
It is easy and free.