Microsoft Teams On Citrix Vdi

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  1. Microsoft Teams On Citrix Xendesktop
  2. Teams Citrix Vda
  3. Microsoft Teams For Citrix Vdi Download
  4. Teams And Vdi
  5. Microsoft Teams On Citrix Vdi Download
  6. Microsoft Teams For Vdi
  7. Teams Vdi Download
  1. Citrix delivers optimization for desktop-based Microsoft Teams using Citrix Virtual Apps and Desktops and Citrix Workspace app. By default, we bundle all the necessary components into the Citrix Workspace app and the Virtual Delivery Agent (VDA).
  2. Citrix is the only VDI/virtualization partner certified for Microsoft Teams. Disclaimer: MS Teams is one of the fastest changing Office applications and currently is on a bi-weekly update schedule. This can make any recommendations obsolete without notice from Microsoft. At the time of this article creation Teams is on version 1.3.00.362.
  3. Teams on VDI 2x2 Gallery View feature will enable to view up to four attendees videos in 2x2 Gallery View on VDI clients from Citrix, VMWare when Teams client in VDI optimized mode.
  4. Hello, Im having an issue where Microsoft Teams doesnt appear to be detecting Audio devices. Teams is running on a Server 2019 image running VDA 1912. Teams is version 1.3.00.4461, which the About- version menu displaying Optimized for Citrix. Ive tried deploying both the application and desktop.
Average time to read:4minutes

Microsoft Teams redirection is an efficient method for saving VDI/SBC resources. This however only works for the desktop based (a.k.a. Fat-client) Microsoft Teams 1.2.00.31357 in combination with the Citrix Workspace client on the local user desktop.

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Microsoft Teams On Citrix Xendesktop

How I tricked the HdxBrowserCef.exe (Chrome Browser) process into presenting itself as an Edge Browser enabling the best of both worlds.

This is a guest post, written by Dennis Smith.

We needed to be able to make a Microsoft Teams video call via our VDI. But since the Citrix HDX optimization for Microsoft Teams is still not released, my chances of getting it to work were slim to say the least. But I'm one of those people who won't take ‘no' for an answer.

The situation

Our organization uses, like many production environments do, the Citrix Virtual Workspace 7.15 LTSR CU3. We host a VDI and make the VM's available via a Netscaler.

We thought, maybe we can get it to work usingthe browser (teams.microsoft.com) and Citrix ‘Browser Content Redirection 2.0',using Fernando Klurfan's guide here;

We had set up the environment and contentredirection with YouTube worked.

Vdi

Teams Citrix Vda

Under the hood

A close inspection on how this system really works was needed to find a solution to our problem. Just like flash redirection a few years ago, I know that the URL that has to be displayed is passed on via the ICA client, ahhum, sorry, I mean the Workspace App, of course.

Microsoft Teams For Citrix Vdi Download

On the client side, Citrix uses theHdxBrowserCef.exe to render the pages locally.

This immediately raised some questions, whatdoes CEF stand for?

After setting the necessary policies/reg keysto enable redirection, as shown below;

And installing the Chrome extension;

Vdi

We were able to successfully run teams locally, and everything worked…

Except video calling.

No video calling using Chrome, no Browser redirection using Edge

It seems that browser video calling is notpossible using Chrome, I don't know why, because technically it's not an issue,at all. I know that Microsoft Teams in-browser video conferencing on Edgeworks. Must be a political thing. Apparently, on the server side Microsoftchecks what browser you're using and only allows Edge browsers to do videoconferencing. However, the issue remains, Edge does not support browserredirection.

After some tests, I found that Chrome could befooled into presenting itself as if it was Edge by setting the User Agent to aEdge identifier. Using shift-control i,and select, network conditions, User agent;

Now if I could only fool the local browser inpresenting itself with a Edge user agent. The local browser is in this case isthe ‘HdxBrowserCef.exe', it comes with the Citrix Workspace App (Receiver).

Microsoft Teams On Citrix Vdi

Teams Citrix Vda

Under the hood

A close inspection on how this system really works was needed to find a solution to our problem. Just like flash redirection a few years ago, I know that the URL that has to be displayed is passed on via the ICA client, ahhum, sorry, I mean the Workspace App, of course.

Microsoft Teams For Citrix Vdi Download

On the client side, Citrix uses theHdxBrowserCef.exe to render the pages locally.

This immediately raised some questions, whatdoes CEF stand for?

After setting the necessary policies/reg keysto enable redirection, as shown below;

And installing the Chrome extension;

We were able to successfully run teams locally, and everything worked…

Except video calling.

No video calling using Chrome, no Browser redirection using Edge

It seems that browser video calling is notpossible using Chrome, I don't know why, because technically it's not an issue,at all. I know that Microsoft Teams in-browser video conferencing on Edgeworks. Must be a political thing. Apparently, on the server side Microsoftchecks what browser you're using and only allows Edge browsers to do videoconferencing. However, the issue remains, Edge does not support browserredirection.

After some tests, I found that Chrome could befooled into presenting itself as if it was Edge by setting the User Agent to aEdge identifier. Using shift-control i,and select, network conditions, User agent;

Now if I could only fool the local browser inpresenting itself with a Edge user agent. The local browser is in this case isthe ‘HdxBrowserCef.exe', it comes with the Citrix Workspace App (Receiver).

Teams And Vdi

Further inspection on the HdxBrowserCef.exerevealed that it uses the open source lib called Chromium Embedded Framework(CEF). It does not use the local Google Chrome. Now we know what CEF stands forin HdxBrowserCef.exe.

The question is, is it possible for CEF tochange the user agent, and does CEF support webcam access?

Yes, it is, and here's how!

and;

Microsoft Teams On Citrix Vdi Download

(source https://ourcodeworld.com/articles/read/425/how-to-enable-webrtc-access-camera-and-microphone-for-cefsharp-in-winforms)

But to re-write the whole HdxBrowserCef.exe isa bridge too far, we only needed it to present itself as Edge.

I started searching for User Agent strings in the Citrix Workspace App folder that holds the HdxBrowserCef.exe. And found it in the ‘libcef.dll'. We dove into the file using a hex editor (https://hexed.it/), searched for ‘mozilla', because that's in all User Agent strings;

Changed this into;

Adding an Edge user string to the User Agentstring. Saved the .dll, and tested this using www.whatismybrowser.comto see if we successfully fooled the HdxBrowserCef.exe into presenting itselfas Edge. And it worked! Notice that strings are stored using &h00 as ‘endof string', and &h20 as ‘space'.

The next test was, will in-browser Teams videocalling work?, the icon was there so it looked promising.

After a few video calls, I concluded thiswork-around works. Please keep in mind that using this setup every redirectedweb-page, including youtube, will be requested as Edge.

Microsoft Teams For Vdi

Dennis Smith – Gourami.eu

Disclaimer: this article is intended as atechnical proof of concept. We do not recommend doing this yourself.

Teams Vdi Download

Bas van Kaam
Field CTO EMEA by day, community by night @ Nerdio
Father of three, IT professional, freelance/independent blogger/analyst, Co-author of the book Project Byte-Sized and author of the book: Inside Citrix – The FlexCast Management Architecture, over 400 blog posts and multiple (ultimate) cheat sheets/e-books. Public speaker, sport enthusiast­­­­­­­­: above-average runner (look me up on Strava) 3 x burpee-mile finisher and a former semiprofessional snooker player. IT community participant.




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