ColdFusion 4.5.1 SP2 and Up: Recommended Settings for Client Variable Storage
ColdFusion Server stores client variables either in the system Registry (the default), a data source, or as persistent cookies in a client's browser. Some websites, however, do not wish to write client variables as persistent cookies. This article explains best practices for client variable storage.
ColdFusion 4.5.1 SP2 and Up: Recommended Settings for Client Variable Storage