This is obviously an area of Windows Microsoft has allocated very little development resources to. It's not a feature the vast majority of the tens of millions of Windows users are going to take advantage of and therefore isn't a differentiator for the purpose of generating more sales. So support inquiries basically go nowhere and you are asked to submit feedback. Gee, I'm busy, why don't you debug and maintain your own software without me telling you what to do!
With that said. I tried MyPhoneExplorer. The interface is dated but it is impressive for being free. There was only one deal breaker. It appears you can view MMS messages but you can only send SMS messages. I send MMS with image attachments from my PC all the time so that was a deal breaker.
Currently the only thing I've found that does everything well is MightyText Pro, but it costs. It's a small amount though to have excellent, complete, bug-free functionality.