NDoc is an open source application for creating class library documentation for .NET Framework 1.0 and 1.1 projects written C#.
Documentation is created in a range of formats, including HTML Help, HTML Help 2, Microsoft Word and Adobe Acrobat (PDF).
Note: NDoc only supports the C# programming language, although an add-on for VB.NET is available. NDoc is no longer in active development, and there is very limited support for version 2.0 or above of the .NET Framework 2.0.