Visual Studio .NET

Tools

NUnit. Allows you to write tests in the language of your choice to test a specific function of your application
TestDriven. Makes it easy to run NUnit tests with a single click, anywhere in your Visual Studio solutions.
NDoc. Automatically generates documentation for your code using the XML generated from your C# XML comments, or the XML comments from VB Commentor.
VB Commentor. Gives VB.Net developers the option to create XML documentation, just like C# developers
Nant. Helps you create a build process for your project.

Subversion SCC Plugin for TortoiseSVN : Support Visual C++ 5.0/6.0, Visual Basic 5.0/6.0, Visual Studio .NET, Visual Studio .NET 2002, Visual Studio .NET 2003, Visual Studio .NET 2005