Which build of Windows 10 is it not compatible with? I've been running Windows 10 for a couple of years and it Verizon desktop message+ just stopped working 2 - 3 weeks ago. A little more detail on the Windows 10 would be helpful.
Also, can Verizon provide access to your last release of Message+? The one prior to this one? I'm leaning toward the problem being with your latest release of Message+ and not so much with Win10.
It would be very helpful, so please forward this along. We'll 'beta' test if for you if you're not willing to test it out yourselves.