Besides using a BackgroundWorker, that is…

From reading the documentation, there doesn’t seem to be any difference between Mouse.OverrideCursor and Mouse.SetCursor other than Mouse.SetCursor returns a bool. Is this really the only difference?

I have a database with some information (no more than a few sentences) on each county in a few states. What I am trying to make is a very simple program that allows the user to hover or click on each county in an interactive map, and have the county specific information pop up. My question about this is, is there a free api or package of some kind that would allow me to create or use a simple filled map this way?

I have a WPF application that needs to have a base page. Layered on top of that is the navigation controls, and layered on top of that would be additional controls.