[Zope] Installing PyXML in Windows Zope 2.5.0?

I would like to know more about installing C extension-using modules such as PyXML into Zope's Python Layout. I installed the "PyXML 0.7 (For Python 2.2)" windows binary distribution into my separate Python 2.2 installation, and it used C:\progra~1\Python\Lib\site-packages\ to do its intermediate build operations. That path was found from a known registry key by the installer, but I had the opportunity to choose something else. The built modules were installed under Python\Lib\xml\, as expected. If I were to use "PyXML 0.7 (For Python 2.1)" and install it into my Zope installation on the same machine, would I select a path of C:\progra~1\Zope\bin\lib\site-packages\, where I create \site-packages manually before the install? Thanks.