Hello. HtmlHelp(windows) in Python2.6.2 seems to be broken. I didn't notice this. :-(
This happens because r71380 was not backported. (Documents under Doc/ require Sphinx 0.6.1 now)
I've merged this into release26-maint in r71639. But in order to update Python2.6.2 binary, I think Martin's help is needed. Could you?