Thanks for the report @svec! That makes two people successfully using Windows 7. I know that WinUSB had some changes along the way, so I am pleasantly surprised.
I’m afraid to have to test Windows 7, Windows 8 and Windows 8.1. However, I think Windows 8.x market share is close to zero. Windows 7 is now out of regular support by Microsoft and extended support ends January 14, 2020 (less than 7 months after Joulescope general availability).
I know it’s only a datapoint of 1, but do you plan on staying on Win7 through 2020?