I had success installing eManager onto the early release of Windows 10 with the v5.20BW10 but on recent installs it does not work.
You have to add the WMI app and WMI SNMP app manually as they are not part of Windows add/remove components anymore.
I still was unable to get the eManager to work but as you said it does connect but doesn't communicate properly.

I just run the software on a virtual Windows 7 installation and it work fine.


Regards
Carl