Hello, I have 2 product and each contains a ObjectManager ZClass. The second product is a generic Tab management (ZMultiTab) I just made (and will relase whan this bug is over) and it works fine when instanciate on root (i can create an instance and call her. etc . No problem). First product is Yihaw (folderish objects). Now i want this second functionality incorporated in my first product to allow several tab management (ala ZMI) in each folderish instance. So i've put a ZMultiTab instance in my Yihaw ZClass definition. I can go to the ZMultiTab view method (within the Yihaw definition) and it works fine. Product 1 (Yihaw) |--- ZCLass1 |--- ZClass2 instance A Product 2 (ZMultiTab) |--- ZCLass2 Root |--- ZClass2 instance B (works fine) |--- ZClass1 instance (calling ZClass2 instance A fails) So the problem is : When i call or test or use this ZMultiTab object in a Yihaw instance <dtml-with ztab> <dtml-var index_html> </dtml-with> It fails because it asks for login (even if i'm manager) and fails with an Unauthorized in ZopeSecurityPolicy.py if accessedbase is containerbase: raise 'Unauthorized', ( 'You are not authorized to access <em>%s</em>.' \ % cleanupName(name, value)) I suspect some misunderstanding from my side with how to call an ZClass2 instance (within a ZClass1 definition) from a ZClass1 instance. Strange thing is i've already done that with a NFGnav instance without any problem. Any idea or tip will be more than welcome. Thanks in advance. -- Didier Georgieff Chef de projet technique SIT du Bas-Rhin tél : 03.88.76.78.35 - fax : 03.88.76.78.34 email : didier.georgieff@agriculture.gouv.fr