Hi: I have Plone 2.5.2 installed on Zope 2.9.5 in two different machines. The first one is my Ubuntu box and the other one is a Windows server. I've created a custom content-type that basically inherits from ATFolder (Products.ATContentTypes.content.folder.ATFolder). After our zope3 training at Chappel Hill with Phillip, I'm trying to do my developments in a "Zope3-style", so I decided to store some data as an annotation of this objects. So, I mark my class with IAttributeAnnotatable, and when I try to adapt my object to IAnnotations to get or set the annotations, it works on my Linux but not on Windows. If I go to the ZMI and check this object's Interfaces tab (www.myserver.com/myobject/manage_interfaces), I can see that IAttributeAnnotatable is in the interface list of the object, but Zope fails to find the adapter. I've added a pdb.set_trace() in my annotation accessing view, and debugged it using runzope.bat but I'm still getting 'Could not adapt' error. I paste the debugging session: (Pdb) l 80 def __call__(self, *args, **kwargs): 81 context = aq_inner(self.context) 82 import pdb; pdb.set_trace() 83 try: 84 adapted = IAnnotations(context) 85 except: 86 from zope.app.annotation.interfaces import IAttributeAnnotatable 87 data = IAttributeAnnotatable.providedBy(context) 88 return str(data) 89 90 return adapted.get(self.ANNOTATION_KEY, '') (Pdb) context <MUSubSite at /mu/subgep> (Pdb) from zope.app.annotation.interfaces import IAttributeAnnotatable as ii (Pdb) from zope.app.annotation.interfaces import IAnnotations (Pdb) ii.providedBy(context) True (Pdb) IAnnotations(context) *** Type Error: ('Could not adapt', <MUSubSite at /mu/subgep>, <InterfaceClass zope.app.annotation.interfaces.IAnnotations>) (Pdb) Firstly, I thought that perhaps there was some nasty Acquisition issue here, so I tried with self.context (without the aq_inner thing), but it also fails: (Pdb) ii.providedBy(self.context) True (Pdb) IAnnotations(self.context) *** Type Error: ('Could not adapt', <MUSubSite at /mu/subgep>, <InterfaceClass zope.app.annotation.interfaces.IAnnotations>) (Pdb) In my Linux box, everything works great: (Pdb) context <MUSubSite at /mu/eps> (Pdb) self.context <MUSubSite at /mu/eps> (Pdb) from zope.app.annotation.interfaces import IAnnotations (Pdb) from zope.app.annotation.interfaces import IAttributeAnnotatable as ii (Pdb) ii.providedBy(context) True (Pdb) ii.providedBy(self.context) True (Pdb) IAnnotations(context) {} (Pdb) IAnnotations(self.context) {} Any hint will be appreciated, Best regards, Mikel Larreategi -- Mikel Larreategi mlarreategi@codesyntax.com CodeSyntax Azitaingo Industrialdea 3 K E-20600 Eibar Tel: (+34) 943 82 17 80