NDoc generates class libraries documentation from .NET assemblies and the XML documentation files generated by the C# compiler (or an add-on tool for VB.NET).
NDoc uses add-on documenters to generate documentation in several different formats, including the MSDN-style HTML Help format (.chm), the Visual Studio .NET Help format (HTML Help 2), and MSDN-online style web pages.
For more information see the NDoc homepage: