If you were looking for an application that would generate documentation automatically from your code, for your application or API what features would you like to see, need, or desire it have. Or is software like this even useful anymore?

In the days of NDoc most people just wanted to produce compiled help files to ship with their products.

The reason I ask is that I am working on an open source project (https://livedocumenter.barryjones.me.uk ) that I have released after it has sat around for a while and I would like to make it more useful and bring it up to date.