Honestly, don’t bother. I switched from a Pronto to a Harmony Elite 18 months ago and it’s great. A fraction of the effort to get it running and you can use the Windows app or an Android / Apple app to set it up.
Philips were a disgrace not updating the drivers for 64-bit considering how much these remotes cost.
You can actually get Prontoedit working fine on Windows 10 64 bit.
Run the install in compatibility mode as XP service pack 3.
Then once the install completes right click the icon and go to properties.
Untick the compatability box and it runs perfectly. Just did this to add my Panasonic Uhd player to my 960 remote. All works fine.