Deprecated Use of Older User Functions Using the Services API

From InterBase

The API functions isc_add_user(), isc_delete_user(), and isc_modify_user() are made obsolete by the introduction of the InterBase Services API. The new Services API functions are preferred over the older user configuration functions because they provide a consistent services mechanism, interface, and set of messages. It is recommended that you use the Services API functions instead of the obsolete user configuration functions. The isc_xxxx_user() functions are still present in InterBase for backward compatibility, but they are likely to be removed from the product in a future release.