I've just updated the Help Builder online demo which can be used, among other things, to document a .Net assembly. You can put in a .Net Assembly that's not huge (less than 20 classes) and Help Builder will try to document it for you and spit out HTML and CHM documentation for it. Now I say try because if your assembly has external dependencies that may cause the assembly to not be accessible.

There have been a number of improvement in the engine in regards to .Net class generation including better support for Interfaces, Enums and Delegates as well as separation of some of the class level generation features.

I'm curious on feedback to see if this actually works well - I know there are a few failures occurring with this but I'm not sure in which part and why as it works for all the assemblies I've thrown at it. If you run into any problems I would really appreciate some feedback here or on the Message Board.

For non .Net folk you can also document COM objects or Web Services.

You can find the generator here: http://www.west-wind.com/wwHelp/wwHelpClassGenerator.wst