Nicely done! Just received the Xminilab portable and began setting up for audio gear testing.
Xscopes was installed from xscopes-qt-100.exe on a Windows 7 64 bit laptop after installing WinUSB with the Zadig tool. Xscopes code loaded first time after Xminilab portable was already started and gave me such nice control over Xminilab! I can see our later embedded design will likely work fine with the xprotolab plain board! We look forward to trying the Android Oscilloscope Pro program so that our design will work with either a laptop or a tablet as the host device.
Very well done and immediately usable Xscopes code; excellent for v1+!
The only little bug we found:
- Xscopes Win32 application wouldn't exit if the Xminilab portable is powered off first, and
- Xscopes Win32 application wouldn't connect to the Xminilab portable if Xscopes is started before Xminilab portable is powered on?
A nit, but just in case there are other side effects that we haven't seen, thought it good to report.
Best, Mark
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It is because the libusb library doesn't have hotplug support for Windows yet. Currently it is supported for Linux and some some other platforms, and will come to Windows soon.

On the Oscilloscope tab of Xscopes, the "Save" & "Record" buttons don't seem to do anything. "Play" seems to mimic function of the "Start" button. Is there future plan here, or again limitation on Windoze?

That will be an upcoming feature.