* [[DesText]] ([[Sentinel Software]])
* [[Pro-Ext]] (Protext Extensions) ([[Sentinel Software]])
* [[ProtextProPrint]] ([[Arnor]]Protext Print Enhancer) (Campursoft)
* [[Prospell]] ([[Arnor]])
* [[Protext]] ([[Arnor]])
* [[Proword]] ([[Arnor]])
* [[Semword]] (Semaphore)