[Zope] Registering Zope's Python Instance in Win32

Hi all, I'd like to register the Python that comes with Zope as the primary python instance. Last time I did this, i.e., used a python script to update the windows registry, it was someone on this mailing list who was kind enough to point me to the right place/method. I've lost the link, tried finding it on Zope.org without success, and am now hoping someone on can help me out again... Thanks. Samir