These are the steps I took:
(Edit: I forgot to add that all these steps are laid out here.)
When I run http://localhost/cgi-bin/hgwebdir.cgi/ I can see my repository. If I try browse that repository, I'm told "DLL load failed: The specified module could not be found.". The last line of the walkback says "c:\program files\apache group\apache\cgi-bin\mercurial\osutil.pyc in __load()".
I've read about people having problems with pywintypes25.dll; this lives in "c:\program files\tortoisehg" and is already in my PATH.
What DLL couldn't be found?
you missed the c libs of mercurial
there are 3 ways to get out of this