...

BTW, the easiest way would be to create a distribution of your Zope ZClass product. All you need to do is to drop it in the Products directory and it will be added in the ZODB Products Folder. You are completely right. The problem is that we do not talk about *my* product but about products like for instance

http://www.zope.org/Members/Barabbas/EventFolder/

Should I ask the upstream author to change this to let the install procedure become more easy?

This would be my suggestion. Or you create the distro yourself and provide the file. Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development & Technical Project Management