Need a recipe for context sensitive help provided by a wiki

My application needs context-sensitive help. I want the help to point to a wiki, so that with any luck my users will fill in the gaps in my helpfiles.

I’ve looked at the demo but that just shows how to do tooltips. Works great, and in a web app it’s nice, but very 90s in a desktop app.

I’ve looked at HtmlHelpController, but that wants me to set up Microsoft compiled html files, which can produce very nice help, but takes hours of tedious work, and is static, not a community-supported wiki. And no example.

I’ve looked at ExtHelpController, but it has a SetViewer method with a default flags parameter of HELP_NETSCAPE which suggests it is a leftover from the last century. And no example, or indication of what other flags are available, to convince me otherwise.

I’m sure it’s possible, but I need either fuller documentation, or a recipe. It’s not obvious to a beginner how to do it.