Hi *!

As i didn't get any replies to my second question: I looks like there is no way of building a ZClass with more then on 1 field for binary data, i.e. 2 or more files in one ZClass? That sucks. Maybe if i do it in Python? But i guess there'd be no way to have a dynamically growing number of binary data fields :-(

Why not? This should be easily doable in zclasses, too. Just make a folderish object, i.e use ZFolder as base-class, and you can add as many object as you want. It's even possible to define which classes can be subobjects of your zclass (I think for that you must also use ZObjectManager as a base class). Am I anything missing here? cheers, oliver