Hi,
Thank you for your reply. Here are some official documents you may need.
Registering an Application to a URI Scheme
https://learn.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/aa767914(v=vs.85)?redirectedfrom=MSDN
Remote desktop URI scheme
https://learn.microsoft.com/de-de/windows-server/remote/remote-desktop-services/clients/remote-desktop-uri
Remote Desktop Client URI Scheme Support
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/dn690096(v=ws.11)
Best Regards,
Grace
---If the suggestions above are helpful, please ACCEPT ANSWER. Really appreciate. This will also help others with similar issue to find this post quickly. ---