At the risk of asking a stupid question or what must seem obvious ... it no longer is to me. My current project requires that I create different document classes. I need for them to be CatalogAware, editable through the management interface and fully renderable. I have been able to create a structured document ZClass, but I have not been able to create an HTML document ZClass that is both CatalogAware and renderable. If I create a ZClass that is based on CatalogAware and DTMLDocument, use the default manage_main method for the Edit View, the instance is rendered properly but the Catalog is not updated (as I would expect). If I create my own method (to kick-off the reindex_object method) and hook it to the Edit View, I can update the Catalog but the document instance is no longer renderable (I get a file download dialog). My first attempt at the HTML document class was just to use CatalogAware as my base class and hand build my constructors and class methods. I ended up with a document class that was CatalogAware and renderable, however the HTML tags were wrapped in brackets when viewed. So obviously the DTMLDocument class tells the ZPublisher to render it as HTML. This detail is not obvious to me - looking at the code. I know that there is an HTMLDocument product available but it was not designed to allow editing/composing TTW, only file upload. I have read the new Zope Book, all the How-To's, tried to read the code, but nothing that I have seen explains what I am doing wrong. This is a very fundamental aspect of Zope that I need to get past and should be able to get from the available literature. Anyone have any insight - thoughts - experiences - pointers - directions ... Thanks in advance. Eric