DataPerfect 2.3 Network and Single Station
Released in 1993 by WordPerfect Corporation
for DOS

DataPerfect, originally written by Lew Bastian, published through
WordPerfect Corp, and later through Novell, was a fast, memory 
efficient, but capable relational database for DOS.  WordPerfect Corp 
sold the product alongside their other DOS based office products, 
such as WordPerfect and PlanPerfect. In 1995 Novel released 
DataPerfect as freeware and development was continued by its original 
author until about 2008.
