Good morning!
I uninstalled both 2017s, rebooted, then installed the new 2019 (x64) & (x86). The Add-Remove now shows ++2015-2019 Redist (x64) & (x86).
BTW, I've still got ++2005, 2010, 2012 & 2013 in addition to 2015-2019.
No change in P3D, the items aren't in Add-ons. I tried uninstalling GSX & reinstalled v2, reboot, the items still aren't in the list. Maybe I should've installed v1, then v2. I didn't do that.
I don't know what else to try. Shame really, there's other projects I've got that won't work unless I've got GSX working properly.
Doug