So after having the same system/setup (Windows Media Center) and a couple of MX-810 remotes for years, I finally find myself needing to re-program it. We dumped media center and my HdHomeRun/Cable Card in favor of DirecTV. Just too many issue with Mediacom. We also picked up a Roku for netflix.

Having said that, I haven't used prowizard in YEARS. My old laptop is long gone but I do still have the prowizard install file. I've installed it on my Win 7 desktop but it fails to update when I start it up. Since it looks like you've played quite a bit with your MX-810, any tips to getting it to work with a Roku and DirecTV Genie receiver? I don't know if they are even still updating codes for these remotes...