I just scanned the Joulescope Windows build machine with both Windows Defender and Malwarebytes. Both say all clean.
On an old Win 10x64 laptop, I uninstalled the Joulescope UI, then installed VIPRE Antivirus Plus. It was also all clean. After a reboot, I downloaded a fresh copy of the Joulescope UI 0.9.3. VIPRE raised no warnings on the Joulescope UI installation.
I think that we also updated the InnoSetup version between 0.9.2 and 0.9.3. Antivirus software often mistakenly flags installers since they can be used both by the malware and legitimate software. At this point, I think your version of VIPRE is raising a false positive. Are your virus definitions up to date?
I do see that a new version of InnoSetup is now available, which we will use for the next Joulescope UI build. I created an unofficial 0.9.4 development release with the new InnoSetup if you want to see if it makes any difference:
We definitely take computer security and malware seriously. In this case, your machine really seems to be reporting a false positive.