501 error on push to https?

[Andrew Robinson]

Now that I am able to view my repository using HTTP or HTTPS
(self-signed) using hgwebdir.cgi, I am attempting to get hg push
working over https

I followed the guide at:
http://www.selenic.com/mercurial/wiki/index.cgi/PublishingRepositories

I keep getting this:

hg push
pushing to https://computer/hg/my-repo
abort: HTTP Error 501: Not Implemented

If I remove the GET exclusion for the apache directory, I am able to
log into the site to view the repository fine, so at first it does not
seem to be an apache config problem as I can view HTTPS (accepting the
self-signed certificate) and log into it (using digest BTW), but I
cannot use hg push, hg outgoing or any other HG method.

What am I missing?

FYI, apache is running on a windows server

Thanks for any help
-Andrew