Multiple RDP sessions on Windows 10 RDP Wrapper and problem solved

Enable Remote Desktop Host support with multiple concurrent RDP sessions. 

RDP Wrapper works as a layer between Service Control Manager and Terminal Services, so the original termsrv.dll file remains untouched. Also this method is very strong against Windows Update unlike modifying the registry when needs to be done everytime there is an update.

After installation check that you have allowed the port through the firewall. Also check that the port on the config is the same one that Windows expects such as 3389.

A problem was found in 2022 with Windows 10 version 20H1 onwards. It shows in RDP Wrapper config as not supported in red top right. Run a version found here. https://github.com/sebaxakerhtc/rdpwrap/releases/

It will continually come up as a virus, but it isn't. Maybe Microsoft doesn't like it? 

Download and run it. Then hey presto! It works.