No wi-fi (a lot of where we're going is *really* remote) or tethered data.
I have a USB GPS device that works with the above-mentioned s/w (as well as some nautical navigation s/w). There appears to be a driver (turboirc - not free) that converts the data to something the current GPS standard that Windows uses (for security, reportedly) but I don't want to pay for it.
I just like doing this: