Microsoft Multimedia Redirection extension stays in 'The extension is not loaded state' even on MMR supported sites

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Microsoft Multimedia Redirection extension stays in 'The extension is not loaded state' even on MMR supported sites

Samarthya Singh 0

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Hey,

I am trying to implement Multimedia redirection for WebRTC calls in a remote session. To get started here are the details related to my setup:

All pre-requisites described here are completed.

Local machine configuration

   Processor	11th Gen Intel(R) Core(TM) i3-1115G4 @ 3.00GHz   2.19 GHz
   Installed RAM	8.00 GB (7.74 GB usable)
   Device ID	<removed>
   Product ID	<removed>
   System type	64-bit operating system, x64-based processor
   Pen and touch	No pen or touch input is available for this display

VM config

Computer name: <masked VM name>
Operating system: Windows (Windows Server 2025 Datacenter Azure Edition)
VM generation: V2
VM architecture: x64
Agent status: Ready
Agent version: 2.7.41491.1172

Also PFA attached the MMR extension logs. The two set of logs were captured in following way:

Video playback on YT: <removed extn logs>
Call redirection on WebRTC samples: <removed extn logs>

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Answer 1

Jilakara Hemalatha 4,360 Microsoft External Staff Moderator

Hi Samarthya Singh,

Thank you for reaching out regarding the issue where the Microsoft Multimedia Redirection (MMR) extension remains in the “The extension is not loaded” state during your WebRTC calls.

This is a known issue and can happen because the browser extension doesn’t always load correctly on the first tab after you connect to your remote session.

Please follow the steps below to verify and resolve the issue:

Please check Windows Desktop Client: Version 1.2.3573 or later
Make sure the MMR extension is installed and enabled in your browser within the remote session.

If it shows `“The extension is not loaded”

Try refreshing the page once.

If the message still appears, open the same site in a new browser tab — this usually resolves the issue.

(This is a known limitation, and the second tab typically loads correctly.)

User's image

If you disconnect and reconnect to your remote session, please refresh the browser page again for redirection to start working.

Reference: https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-desktop/troubleshoot-multimedia-redirection

Hope this helps! please let me know if you have any queries.

Jilakara Hemalatha 4,360 Reputation points Microsoft External Staff Moderator

2025-10-23T02:03:22.96+00:00

Hi Samarthya Singh,

Could you please confirm, if provided response was helpful. Please let me know if you have any queries.
Samarthya Singh 0 Reputation points

2025-10-23T09:49:59.5166667+00:00
Hey @Jilakara Hemalatha ,

Just wanted to clarify a requirement, the docs (https://learn.microsoft.com/en-us/azure/virtual-desktop/multimedia-redirection-video-playback-calls?tabs=intune&pivots=azure-virtual-desktop) states:

You need to connect to a remote session from one of the following supported apps and platforms: - Windows App on Windows, version 2.0.297.0 or later. - Remote Desktop app on Windows, version 1.2.5709 or later.

I am connecting using the Remote Desktop Connection app, is the Remote Desktop app different from it.

Also when I try opening the RDP file using the Windows App, I get the following screen. How can I get the VM listed over here.
Jilakara Hemalatha 4,360 Reputation points Microsoft External Staff Moderator

2025-10-23T10:19:23.98+00:00

Hi Samarthya Singh,

Yes, the Remote Desktop Connection and Remote Desktop app are different applications.

The “Remote Desktop Connection” app (the classic mstsc.exe built into Windows) is not the same as the “Remote Desktop app” mentioned in the documentation.

The “Remote Desktop app” refers to Microsoft’s newer client (available from the Microsoft Store) that supports advanced features such as Multimedia Redirection (MMR) in Azure Virtual Desktop.

Since your connection is through the Remote Desktop Connection (mstsc.exe) client, it does not meet the requirement listed in the documentation for MMR support.

Additionally, please note that the Remote Desktop app is being deprecated and replaced by the Windows App. Starting May 27, 2025, the Remote Desktop app for Windows will no longer be supported or available for download.

Reference: https://techcommunity.microsoft.com/blog/windows-itpro-blog/windows-app-to-replace-remote-desktop-app-for-windows/4390893
Samarthya Singh 0 Reputation points

2025-10-24T08:50:57.9333333+00:00

Hi @Jilakara Hemalatha ,

That was really helpful. Given that for using Windows App, I need an organizational account and Since I am a individual developer (@gmail.com address), could you help with how I can I configure and share the Virtual Desktop with me such that it is visible in my Windows app.
Jilakara Hemalatha 4,360 Reputation points Microsoft External Staff Moderator

2025-10-25T17:07:57.44+00:00

Hi Samarthya Singh,

Thank you for the update. Could you please confirm whether the Azure Virtual Desktop environment was created under your personal Azure subscription linked to your @gmail.com account or under an organization’s Azure tenant?

This will help us understand where the AVD resources are hosted and guide you with the correct steps to make them visible in the Windows App.
Jilakara Hemalatha 4,360 Reputation points Microsoft External Staff Moderator

2025-11-03T13:16:52.5533333+00:00

Hi Samarthya Singh

If above information was helpful, please take a moment to accept answers and upvote it 👍 to make it helpful to the community.

Also please let me know above ask so I can help further on this.

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Microsoft Multimedia Redirection extension stays in 'The extension is not loaded state' even on MMR supported sites

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