I've done something similar to update Aeon/Aeotec devices. They supply packages to do the updates that use the Zensys tools as the base. I have several "spare" ZSticks and one of them is joined to the Hubitat network as a Secondary. I plug that into my Mac, fire up my virtual Windows PC and run the Aeon software. I've updated Multisenor6's, Minimotes and Wallmotes this way.
I do not have to Exclude the devices before starting the update. I have not run into it, but I can imagine that leaving it as an active device while doing the update could, under just the right circumstance, fail. So far, I haven't run into it and I performed one of these updates as recently as last week.
From March 2018:
I like the Aeon ZStick because it has a battery and a button. The battery means it works when not plugged into USB power. And the button puts it into Include or Exclude mode. For pretty much the same $ you'd pay for any ZWave USB stick, the extra feature is worth it, to me.
