[Zope] Beginner question: How to install a product

Hi I'm a new Zope user and I'm facing to a problem. I want a Zope site on a windows NT domain with RemoteUserFolder and IIS as an authentication frontend. After I installed the windows distribution of Zope I put behind an IIS server (I found a howto at www.zope.org : 'Zope2,IIS and PCGI', created by brianh). All of it worked. Now I have to install the RemoteUserFolder product but I don't know how to do that. The Zope Manual has chapter14, but it's only about creating through the web manageable products, nothing about installing external made products. Could you help me? Thanks, Imre.