It's working fine on our Windows 7, 64-bit machines here.
Plug in, boot editor, switch to Standalone, turn off EL in settings, save settings, download scenes — BAM, lights are off and I can unplug and replug as many times as I want, no lights. Doesn't matter if the editor is open or not — same results. They light up for a second or two right when it's plugged in, but promptly turn off on their own, as they should.
2, 3, 5, 13, 89, 233, 1597, 28657, 514229, 433494437, 2971215073