Does the new Teams SlimCore client side magic work with MsRdpEx?

[CDSFounder]

Hello,

I am curious to know if you have tested MsRdpEx with the new Teams SlimCore optimization which is replacing the legacy WebRTC for multi media redirection in Teams?

https://learn.microsoft.com/en-us/microsoftteams/vdi-2

The legacy WebRTC worked on Remote Desktop Server and on-prem Windows 10/11, but I cannot get video or screen share feeds to work when using MsRdpEx (audio redirection works fine with SlimCore). I am curious if there is anything you can think of that may prevent the video / screen share logic from working when using MsRdpEx?

:)

[awakecoding]

I don't have an environment to test either the legacy WebRTC or the new Teams SlimCore, but from what I understand, legacy WebRTC works with MsRdpEx + msrdcex.exe, but not the new Teams SlimCore? Does the same copy of the MSRDC launched without MsRdpEx work with it? I'm assuming mstsc.exe doesn't have the required bits for Teams SlimCore.

Off the top of my head, I don't have a clue, so the best would be to capture MsRdpEx tracing logs for a session where you'd expect SlimCore to work but it doesn't. Maybe there's a hint in there about new internal properties, or maybe even new COM interfaces, who knows.

[janscloud]

Hi,

the WebRTC way with audio / video is working sometimes. I am not able to figure out when it will work (better) and when it won't work. I had best luck in one on one ad hoc meetings where video on both sides worked and also screenshare did work. Audio is working all the time perfectly fine.

If it helps and you need a test environment, I can give you access to mine. Will also try to do some logging and provide them.

(I'm not sure about the SlimCore way. I have one Azure Virtual Desktop and some Citrix Virtual Apps & Desktops environments and in none of them the SlimCore AppXPackage made it on my local device yet. But would be nice to have it working with MsRdpEx.)

Best,
Jan

[janscloud]

MsRdpEx-SlimCore.log

SlimCore engine will load and trigger the local "MsTeamsVdi.exe" but Camera does not work. The attached log file should have capture some tries to access local camera.

[GhostlyCrowd]

MsRdpEx-SlimCore.log

SlimCore engine will load and trigger the local "MsTeamsVdi.exe" but Camera does not work. The attached log file should have capture some tries to access local camera.

Same issue I'm experiencing.

Hope for a solution!