 The software was first developed by Dantz Development Corporation in 1989, initially for the Macintosh platform and continuing later for Windows.With sales split evenly between the two variants and the Macintosh variant claiming 90% of its market, Dantz Development Corporation was acquired by EMC Corporation in 2004.In 2006 version 7.5, the refined first release of the Windows variant under EMC, added performance features needed by SMEs.