It takes me around one hour to find out how to integrate my component help (DLL) into VS7 IDE. It's really painful and erroneous to apply. You can read msdn: Help Systems in Windows Applications to lean how to add help for an application. But: how about the component help?
Here you can find that: read msdn: Adding Custom Links to the Dynamic Help Window to find out how to apply. I think that's really a task for ndoc and I will suggest a change/new feature to handle that stuff.