[Zope] Webdav to another server

Hi, I am in a situation where I need to access (read) files on a webdav server from my Zope application. There's a lot written about accessing Zope with Webdav but I can't find anything useful about using Zope to access other webdav servers (except for a mention about webdav/client.py - but it's not obvious!). In particular, the webdav/web folder server is Win2000/IIS 5.0 and Zope is installed on a Linux box. Can anyone give me some hints on the best approach? Thanks, Erik Isokangas