Is it possible to use ZODB to access a non Zope filestore from an external method that is being called from Zope? I'm getting an error when I try to do so? I'm trying to use ZODB to store some data. I've created my own DB and filestore outside of zope and it works find with my external test rig. But when I integrate my code into Zope as external methods, when I try to retreive objects I get errors such as: In the browser window: Zope has encountered an error while publishing this resource. Error Type: AttributeError Error Value: User with the tail of the stack trace reading: File /usr/local/Python/local/lib/ServiceQuery.py, line 36, in __init__ File /usr/local/Python/local/lib/ObjectStore.py, line 47, in getObject File /usr/local/Zope/Zope-2.1.2-src/lib/python/ZODB/Connection.py, line 396, in setstate File /usr/local/Zope/Zope-2.1.2-src/lib/python/ZODB/Connection.py, line 193, in _persistent_load (Info: ('\000\000\000\000\000\000\000\030', ('__main__', 'User'))) File /usr/local/Zope/Zope-2.1.2-src/lib/python/ZODB/Connection.py, line 153, in __getitem__ And the stderr of the server emits: 2000-01-21T09:58:11 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\000\000\000'