I'm trying to launch the auto focuser from BackyardEOS 3.1.17 (focuser is Sesto Senso though I think that's irrelevant). Ascom Focuser Chooser pops up, I select the Sesto Senso from the drop down and it gives me a "This is a 64 bit driver only and is not compatible with this 32 bit application." If I launch the ASCOM Diagnostics it comes up in 64bit mode and I'm able to choose and connect with the focuser just fine. So it seems like BYE is launching the ASCOM Focuser Chooser in 32bit mode? If so can I make it do 64bit? I'm running under Windows 10 64bit mode.
Anyone has experience with