Error message “Assembly must be registered in isolation” when registering Plugins in Microsoft Dynamics CRM 2011
By David Youngquist, Senior Support EngineerTuesday, January 8, 2013
When trying to register a real time plug-in in SmartConnect, receiving an error that says ‘Assembly must be registered in isolation” when registering Plugins in Microsoft Dynamics CRM 2011’
There is a security restriction that enables only privileged users to register plug-ins. For plug-ins that are not registered in isolation, the system user account under which the plug-in is being registered must exist in the Deployment Administrators group of Deployment Manager.