Windows Server-2019 RDS HTML Webclient without Domain

Hi Folks,

i like to install RDS with HTML Web client on a standalone server.

So i don't have a domain to config the RDS Server.

I can not find the corresponding feature.

The documentation explain only the installation with a domain:

https://docs.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/remote-desktop-web-client-admin

Thanks for any help :-)