[Zope] NT Install Problem with Zope 2.0.0

Hello, Sorry if this question has been answered already... I tried a search but to no avail... Trying to install Zope 2 on my NT machine I got the following error message near the end of install (97%) "You do not have access to make the required system configuration modifications. Please rerun this installation from an administrators account". And the install aborts after I okeyed the dialog. Problem is I'm logged in as the administrator for this machine! Any clue as to what the installer is trying to do and how I could work around this problem would be very much appreciated. TIA = tmk =