Different versions of the model are opened with the corresponding Creo version

I am using Creo Parametric Release 5.0 and Datecode5.0.5.0

If both creo5.0 and creo9.0 installed, how do configure that when opening Creo models directly, models created by creo5.0 will be opened with creo5.0 and models created by creo9.0 will be opened with creo9.0?