Free Refactoring Tools for C++, C#, VB.NET, and ASP.NET
Free CodeRush xPress, which is a refactoring add-on for Visual Studio These are pretty useful actually and have some nice features that make developing with Visual Studio easier. Note that these won’t work with VS Express, you must have VS Standard or better.
C# / VB (Visual Studio 2008 and 2010 only):
C++ ( Visual Studio 2005, 2008, and 2010):