BTW, if you make profiles with the QTR Windows GUI Curve Creator in Win 8 or 10, there is an annoying bug. When you hit "show curve," it will not show. The way you see the final curve is to right click on the list of profiles in the main GUI. The option to show the curve appears there and works.
The Curve Creator bug affects both the "show curve" button and File>Save method of saving the Quad files. Those files are generated and saved, but then the system hangs and the cursor's spinning circle, indicating it is busy, will not stop. You can ignore it, but it's annoying. To stop it, go to the main GUI and do a File>Open. This turns off the spinning circle. While this stops the annoying "busy" signal, the software is stacking up unfinished business that does not show. If you are making a number of profiles, this will eventually slow the system. To clear it, you need to shut down QTR and re-open it. As you shut it down, you'll see the blank curve boxes flash on the screen.
Aside from this annoying but non-fatal bug, QTR works fine with Windows 10 as far as I could see in my short time experimenting with it on my wife's Win10 Dell. (I have no intention of "upgrading" to Win10 on my Win7 machines.)
Paul
www.PaulRoark.com