[Zope] put_factory

[Arenz, Ralph]

Hi all,

i've developed and registed a own python-class as ZClass and ZBaseClass
in Zope.
Now i want to create a new (pure) ZClass with the ZBaseClass as subclass
and force ftp/webdav to use this ZClass for uploading. 

If i write the put_factory for the python-class it works well, if i try
to use the put_factory for the pure ZClass i run in trouble.
Is it possible to use put_factory in the context of pure ZClass anyway,
and how do i have to call the ZClass constructor?

ralph