Building help from the source with Sandcastle
As an exercise, I used Sandcastle Help File Builder, which is a nice little GUI to wrap the command-line utility Sandcastle.
To see how it works, download and install those 2 programs and open GeodesiX.shfbproj in the project’s root folder (it will auto-associate with SFHB). The build takes several minutes.
The result is a nice MSDN-style help file, which displays nicely with Internet Explorer but sends Google Chrome into a fit.
This concludes the tutorial, I hope you found it instructive.