We don't have Windows and we can't use GSAK, but we don't need it with Project-GC! We are discovering new things it does every day! Two of the most brilliant things are Virtual GPS and Live Map which we have now used together to plan several routes, make bookmark lists, export the lists, and (what is really great) sorted the lists in many different ways. And that just scratches the surface of why anyone should become a paying member of Project-GC! It is our first year as a paying member, but we won't be slow in renewing!