I need to manually remove any reference to the Exchange 2003 Management Tools from a Server 2003 box. I have recently moved to Exchange 2010, and my Unity server is not working properly. Cisco keeps telling me that the Exchange 2003 Management Tools are still lingering on the Unity box. They are not listed in Add/Remove programs. I've searched the registry and Windows directories and just cannot find anything. Does anyone know what Registry keys are linked to Exchange 2003 Management tools so I can blow them away?