Dear Vince,
Thank you for reaching out and providing a clear summary of the issue you're encountering with the Remote Desktop (MSI) client and Workspace URL subscription.
You're absolutely right — as of May 27, 2025, the Microsoft Store version of the Remote Desktop app is no longer supported, and many organizations are transitioning to the MSI-based client. However, the MSI version is primarily designed for Azure Virtual Desktop (AVD) scenarios and does not currently support subscription to on-premises RDS Workspaces via a Workspace URL.
Why the MSI Client Fails with On-Prem Workspaces
The error message:
"We couldn't find any Workspaces. Please check that the email or URL provided is correct."
…is expected behavior when using the MSI client with a non-Azure environment. Unlike the Microsoft Store app or RemoteApp and Desktop Connections via Control Panel, the MSI client lacks support for Remote Desktop Web Access (RDWA)-based workspace feeds — which is what traditional RDS farms rely on.
Recommended Alternatives
Since your RDS farm is fully on-premises and not integrated with Azure, here are your best options:
Continue Using RemoteApp and Desktop Connections via Control Panel
This method remains supported and works reliably with RDWA feeds.
Deploy RDP Files via RD Web Access or Group Policy
You can distribute .rdp files directly to users or configure them via GPO for seamless access.
**Consider Third-Party RDP Clients**
If you're looking for a modern UI or additional features, clients like **Remote Desktop Manager by Devolutions** or **FreeRDP-based tools** may offer better compatibility with on-prem RDS.
```3) **Additional Notes**
The logs you referenced (LocalState\Logs) are specific to the Microsoft Store app and won’t reflect MSI client behavior.
There is currently **no workaround** to enable Workspace URL subscription in the MSI client for non-Azure environments.
Microsoft has not announced plans to extend MSI client support to traditional RDWA feeds, but we recommend keeping an eye on future updates.
I hope this helps.
Best regards,
Domic Vo