Yet somehow I managed to get manageable single-page html docs for rabidvwm and lsxcommand. Sure, they're not xlabel, but they're not simple either.

The benefit I've had mentioned was that it's all in one file so you can just open that from the zip. Whatever.

I'm just saying that NLM was there before these chm docs appeared (else it would have supported them from the start), so it's not like it should have been a surprise. The choice to use (or continue using) chm was made with the knowledge that the docs would not be installed by NLM. (or so I assume) ISTM to make more sense to complain about the action that caused the problem rather than the inaction.

But anyway, upgrade and be happy. It all works now.