fingered that you wanted freeware, maybe you didn't have original software like from the manufacturer and had bought on ebay. the manufacturer price is only a few dollars more. so i was hoping you hadn't spent a bunch of cash without buying from oem. my bad.
this reads as a simple instrument. software should be simple, in the old days, like 5 minutes ago, we used this type of instrument without a program and simply recorded any data to enter by hand into a computer. if you're looking for a more complex program that what you have, ask for what you need. eye am sure that some buddy hear will be glad to let you have it to drive a spread sheet of airborne calculations or watt ever else yew may desire.