Brian, Do you feel this needs to be a config option, or can we live with a - D setting to disable jboss serialization? I know I originally suggested a proper config elem for this, but since the ObjectSerializationFactory uses a static method, passing in a Configuration object here would be a pita. What do you think? Cheers, -- Manik Surtani Lead, JBoss Cache JBoss, a division of Red Hat Email: manik(a)jboss.org Telephone: +44 7786 702 706 MSN: manik(a)surtani.org Yahoo/AIM/Skype: maniksurtani