We use Sandcastle to produce the class library though...once you work through the frustrations, it works quite well.

We used to use Document! X by Innovasys, but switched to sandcastle a while back, actually. It's current iteration has it's little quirks and issues, but I like it's output (the fact that it produces that output much, much faster than document x doesn't hurt either .)

Rick Strahl has one on west-wind.com, havent used it much but it looks pretty cool.

What do you all use to produce help files from the XML documentation in your code?

NDOC is dead and the MS Sandcastle stuff in my brief experience with it stinks.

Anyone using anything that is good and either free or cheap ?

Thanks

Keith Chisarik