[I'm posting this here b4 the Collector in case these have been solved in CVS versions. NB I'm using Zope A4 on IE 4 for Windows] Hi, I've found a bug(s) in ZClasses. Try the following: Create a new product Create a Zclass in the Product Delete the Zclass you just made Create a new Zclass in the same place. You will get a traceback error complaining about missing method manage_addzclass. Press the reload button and try again and it works Also, If you make anything items in a Zclass methods folder apart from a DTML Method Zope will throw up random errors. Sometimes it will put it into the root of the zclass (along with the factory DTML docs), sometimes it will insert it and then throw up intermittant tracebacks relating to missing zclass methods. To fix it, delete the zclass and add it again. Finally, If I make a zclass based on DTML Document and then create an instance of it and then VIEW the instance then IE downloads the document instead of displaying it. NB I was using a metatype of "Visual DTML". I haven't have a chance to try it with netscape yet. A few Q's about ZClasses (things I am going to try but want to ask while I'm posting;): If I make some methods in a Zclass can then call them via: Instance_html/mymethod? (where Instance_html is the url of a DTML Document based zclass) Which way does the acquision ('cuse the spelling) work? Through the Instance or through the zclass or both? If I make a zclass in the methods part of a zclass can I inherit the methods of the parent? Can I pinch the tar.py for my Zope for Windows distrib? ;) Cheers, Anthony Pfrunder