I seem to recall a previous post stating that Ardi will be working on being able to drop system 7.1 or 7.5 into Executor for better compatibility. I say Ardi should concentrate on only System 7.5 (not 7.1) because I don't see that Sys 7.1 is even available to purchase anymore. 7.5 is all over the place to purchase, it might be the better bet.