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This is a Live article - updated frequently with the latest info an known issues. Minimum Teams version: 1.2.00.31357 Recommended Teams version: 1.3.00.21759 (or higher) The following article provides guidelines for troubleshooting the HDX optimization for Microsoft Teams in Citrix Virtual Apps and Desktops 1906.2 or higher. The URL to view the log page for Citrix Workspace app 1907 for HTML5 and earlier is changed now. The new URL to view the log page is siteurl/Clients/HTML5Client/src/SessionWindow.html#engineType=log, where siteurl is the URL of the Citrix Receiver for Web site.
During the last couple of weeks I have been helping customers implement Microsoft Teams in their Citrix VAD setups. A common denominator for most of the Teams implementations was Teams consuming a lot of resources, different Teams versions were present in the environment and Teams generating a huge amount of temporary or cached data in the user’s profile.
In this article I’ll share my experiences with Teams in Citrix VAD. This is by no means a best-practices install or configuration guide it’s more of a guide on how to avoid a couple of different pitfalls and hopefully also provide a great user experience with Teams in a Citrix VAD setup.
If you are not familiar with Microsoft Teams, you might want to gather some information before installing or configuring anything with Teams in a Citrix VAD setup. Visit this site, if you want to know more about Microsoft Teams.
First of all I want us to be on common ground before going any further with this article, so we’ll have to cover the different ways of installing Microsoft Teams, as this is an area causing a bit of confusion. In this article I am using the 64-bit version of Teams and the 64-bit version of Office installed in Windows Server 2019 with using FSLogix Profile Container.
Installing Microsoft Teams Per-User:
Today there are 2 different ways of installing Microsoft Teams. You can install it either as a per-user install or a per-machine (machine-wide) install. Microsoft recommends to install Teams as a per-machine install in non-persistent setups.
The per-user install can be installed in a few different ways. Either via the Office 365 click-to-run installer, via an EXE file or via an MSI file, Microsoft isn’t making this easy! Both the EXE installer and MSI installer can be downloaded in either 32-bit or 64-bit, make sure to get to one matching the Windows architecture.
You can get the EXE file here:
https://products.office.com/en-us/microsoft-teams/download-app
You can get the MSI files here:
32-bit – https://teams.microsoft.com/downloads/desktopurl?env=production&plat=windows&managedInstaller=true&download=true
64-bit – https://teams.microsoft.com/downloads/desktopurl?env=production&plat=windows&arch=x64&managedInstaller=true&download=true
So, as you can there are 3 different ways of deploying Microsoft Teams as a per-user install, a bit of a mess if you ask me and I am not surprised if some finds it a bit confusing.
We’ll need to dive a bit deeper in how the per-user install actually works, even though it’s not the recommended way of deploying Microsoft Teams, there is some useful information for when we cover the migration from the per-user install to a per-machine later in this article.
Both the EXE file, MSI file and the Office 365 click-to-run “installs” a Teams.exe file and a setup.json file in C:Program Files (x86)Teams Installer:
In this case I have installed version 1.3.0.4461 of Teams:
The Teams.exe file is the actual installer, which installs Microsoft Teams in AppDataLocalMicrosoft the user’s profile. The installation is triggered by Teams.exe process via registry, which can be found here:
For copy/pasting:
HKEY_LOCAL_MACHINESOFTWAREWOW6432NodeMicrosoftWindowsCurrentVersionRun
So a plain old registry value in Run is used to kick off Teams, not necessarily the best way to start an app in a non-persistent shared environment, but then again this is the per-user install of Teams, which is meant to be installed on a physical Windows 10 machine, not a shared environment.
As mentioned, during logon Teams is installed in the user’s profile and when Teams is started up and the user has logged on, this is how the Teams install folder looks like:
Once this is completed, the Update.exe process, now in the user’s profile, is used to start Teams. This is, again, done via registry:
For copy/pasting:
HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun
As you can see the Update.exe is executed with a few parameters. I have not been able to find any information as to why this procedure is used to start Teams in a per-user install. My guess is that this Update.exe process checks for any new releases of Teams during startup of Teams, and then downloads the latest version at some point.
Microsoft has a very short article about the update process here:
https://docs.microsoft.com/en-us/microsoftteams/teams-client-update
According to the article Teams is updated every two weeks, no specific time of day is mentioned, so we’ll have to assume that the update process just kicks in at random. I have had a Teams running in a session for a couple of hours, no update kicked in. I have tried to log on and log off several times with Teams auto launching, nothing. At a customer I have seen 3 different versions of Teams being used at the same time, by different users. This might complicate things a bit in terms of troubleshooting because of the different versions. Some users might have issues that other users don’t have because they user another version of Teams.
For the sake of this article, I have done a manuel update via the “Check for Updates” feature:
This kicks off the update process, where the Teams.exe process and the Updates.exe process both consume a considerable amount of CPU resources, both processes have the priority of “normal” in Windows, which means that it might slow any other applications down for a couple of minutes, especially if you have multiple users where this update kicks in at the same time.
The update process goes out to Microsoft and downloads the latest version of Teams to the AppDataLocalMicrosoftTeamsstage folder in the user’s profile:
Once the source files for the new version of Teams are downloaded, the user will get a notification about a new version being available:
If the user clicks the “Please refresh now” text box, the updater kicks in and is again consuming a considerable amount of CPU resources, still at “normal” process priority, which may once again potentially slow other apps down for a period of time.
Interesting stuff is also going on in the user’s profile. The “stage” folder is now removed, and replaced with a “previous” folder:
So the user now has two versions of Teams in the profile, the current updated version, which is installed in the “current” folder and is the one being actively used in the current folder, and then the previous version of Teams, which is no longer used, essentially now doubling the amount of space used for the Teams install. Considering that I have found no information of how a user might be able to revert to a previous version of Teams, there is nothing in the Teams app that enables the user to roll back to a previously used Teams version, I am having a difficult time understanding why it’s necessary to store the previous version in the user’s profile, why isn’t just deleted?
To wrap this section up, there really isn’t any reason to use a Teams per-user install in a shared environment. In a shared environment we should have a degree of control of the apps installed and update process of the apps, to ensure stability and functionality. With a Teams per-user install, we don’t have any control, from the moment it’s installed it’s out of our control, because we don’t control the update process.
Migrate Teams per-user to Teams per-machine
Now you have come this far and you might have realized that Teams isn’t installed in the correct and recommended way, you can go a few different ways. Leave it be, and hope that Microsoft doesn’t change anything major or add additional features, which might demand even more resources or maybe break existing functionality. Or remove the current Teams per-user install and deploy the Teams per-machine install instead, which is also the recommendation from Microsoft.
If you decide to leave Teams alone in it’s current state, then there is no reason for you to read any further. However if you want to deploy the Teams per-machine instead, then stay with me.
To be honest this isn’t really a migration, it’s really “just” an uninstall of Teams, and an install of Teams suited for non-persistent shared environments.
Switching to a Teams per-machine install is fairly easy, you are probably not expecting that, considering we have to go out to every single user profile and remove a Teams per-user install, but Microsoft has actually done some clever thinking, when it comes to removing Teams per-user.
Uninstall Teams per-user
The first thing we’ll need to do is to remove the Teams per-user install. In Windows Server 2019 we’ll go to Apps and Features select the “Teams Machine-wide installer” and click uninstall. In this case the name is not entirely accurate, or it is, but the “Teams Machine-wide installer” is the machine-wide, or the per-machine installer, but it can also do a Teams per-user install. You might see “Teams” or “Teams Installer” instead, this is because you have used the EXE installer, mentioned earlier.
Back on track. The uninstall should be pretty uneventful, it’s an uninstall like any other uninstall, other than this uninstall only removes the C:Program Files (x86)Teams Installer folder, and not the Teams installed in the user’s profile. So, how to remove Teams from the users profiles? This is where Microsoft has done some clever thinking. During the uninstall of Teams per-user, two registry values are created here:
For copy/pasting:
HKEY_LOCAL_MACHINESOFTWAREWOW6432NodeMicrosoftWindowsCurrentVersionRun
We need the data in the value “TeamsMachineUninstallerLocalAppData”, this string will uninstall Teams per-user, in the user’s profile.
For copy/pasting:
%LOCALAPPDATA%MicrosoftTeamsUpdate.exe –uninstall –msiUninstall –source=default
You HAVE to use this uninstall string, it is not enough to just delete the Teams folder from the user’s profile, Teams will come back if you do and you could end up with a mix of Teams per-user and Teams per-machine, they are able to exist perfectly fine side by side, you don’t want that!.
If you leave both values where they are, Teams will be uninstall during the next logon. In some cases that might be OK, however if you want a more controlled process, let’s say you want to do the uninstall for a specific group of users or when user’s access a test-server, you can bring in something like Citrix Workspace Environment Management, to execute the uninstall string based on AD group membership or anything that would identify the server as a test-server or whether the Teams install is a per-user or per-machine.
If you are going with the WEM approach make sure that both the “TeamsMachineUninstallerLocalAppData” and “TeamsMachineUninstallerProgramData” values are deleted, before going any further.
In WEM we can use an external task to execute the uninstall string:
Instead of using an AD group membership as a filter for the Teams per-user uninstall, we can use a combination of two filter conditions doing File/Folder matches, making sure that Teams per-user is not uninstalled, unless there is a Teams per-machine installed on the Session Host/VDI. We will have to create a filter condition which is checking to see if “%LOCALAPPDATA%MicrosoftTeamscurrentTeams.exe” exists and another filter condition which is checking to see if “C:Program Files (x86)MicrosoftTeamscurrentTeams.exe” exists. The “C:Program Files (x86)MicrosoftTeams” folder is where the Teams per-machine is installed, we’ll cover that in a moment.
The filter conditions look like this:
With these conditions I can create a filter rule which can be assigned to the “Teams per-user uninstall” external task.
The filter rule looks like this:
For this filter rule to apply, both filter conditions have to me met.
The last thing we need is to assign the “Teams per-user uninstall” external task:
Go to Assignments and click the little arrow button
In the drop down box select the filter rule we just created
You should end up with an assignment looking like this.
To summarize – Via WEM we are now uninstalling Teams per-user if the user is logging on to a Session Host/VDI that has Teams per-machine installed and Teams per-user exists in the user’s profile. We now have a controlled way of getting rid of Teams per-user.
Install Teams per-machine (Machine-wide)
There are a lot of different articles and guides on how to install Teams in a non-persistent and/or shared environment, I recommend this article by fellow CTA Manuel Winkel:
https://www.deyda.net/index.php/en/2020/02/25/install-teams-onedrive-in-citrix-machine-based/
Going further, I am assuming that you are going with the WEM approach, if you are not there might be some slight differences in how Teams behaves.
Also be aware that Microsoft is not making things easy for us at the moment. Currently there are two different download links for the Teams per-machine MSI installer, make sure to get the version from the link i Manuels article, as this is the version currently supported by Citrix (CTX253754). Make sure to keep an eye on that CTX253754 article.
The most important thing to remember is to user the correct install parameters during setup, to make sure that Teams is deployed as a per-machine install. Either go to the article by Manuel, refer to the official “Teams for Virtualized Desktop Infrastructure” documentation or use this command:
msiexec /i Teams_windows_x64.msi ALLUSER=1 ALLUSERS=1
To verify that it is a Teams per-machine install, make sure that you have a “C:Program Files (x86)MicrosoftTeams” folder. The folder structure in here should look familiar to you:
Teams is launched from the “current” folder via the Teams.exe process and once again a registry value is used to do the launch.
The registry value can be found here:
For copy/pasting:
HKEY_LOCAL_MACHINESOFTWAREWOW6432NodeMicrosoftWindowsCurrentVersionRun
Personally I delete this registry value, because I don’t want Teams auto starting via registry. There might be situations where you want to have a bit more control over who is running Teams, maybe because of license enforce ment or maybe you are testing Teams, and only want a certain group of users to be able to access Teams. Or perhaps you just don’t want applications auto launching during logon.
To control the Teams startup, we’ll again turn to Citrix WEM. Create an action, in this case it’s just called “Teams”:
Assign the newly created Teams action:
In this case I have created filter rule with a filter condition with an AD group membership check, so my user will have to be a member of a specific AD group for the action to apply.
Configure Teams for automatic start up:
Make sure Auto Start has a green check mark.
This is it! Teams per-machine is now alive and kicking.
Profile Exclusions
Both Teams per-user and Teams per-machine downloads a huge amount of temporary/cache data during first launch just to immediately flush it again, and to be honest I am not entirely sure why or what kind of data is downloaded, especially not with the per-machine install. However if you are not configuring the correct exclusions, you might see your FSLogix Profile Container increase in size, as the temporary/cached Teams is written and flushed.
With a fresh FSLogix profile, I have seen the container expand to around 4-5GB in size when launching Teams, with writes going the the AppDataRoamingMicrosoftTeamsService WorkerCacheStorage folder. If you mount the profile container, when it’s not in use, you’ll find that there’s only around 400-800MB of data in the container, and nothing or very few small files in the AppDataRoamingMicrosoftTeamsService WorkerCacheStorage folder.
As with any other profile exclusions, you should of course do some testing, before implementing in a production environment
UPDATE – 14-07-2020 (july 14, 2020):
If you are using FSLogix Office Container, do not include Teams data in the Office Container, as the exclusions mentioned will no apply to the Office Container, they only apply to the Profile Container.
This means that you should either leave this policy at not configured or configured it as disabled:
UPDATE – 19-05-2020 (may 19, 2020):
The list of exclusions, below, has once again been updated. Via a Citrix discussions forum post, I have been made aware that certain exclusions are breaking things.
Excluding “AppDataLocalMicrosoftTeamscurrentresourceslocales” apparently breaks the system tray menu.
Excluding “AppDataLocalMicrosoftTeamsCurrentLocales” apparently breaks SSO to Teams.
Do not add the folders with a strikethrough. If you do, test, test, test!
Exclusions:
AppDataLocalMicrosoftTeamsPackagesSquirrelTemp
AppDataLocalMicrosoftTeamscurrentresourceslocalesAppDataLocalMicrosoftTeamsCurrentLocales
AppDataRoamingMicrosoftTeamsService WorkerCacheStorage
AppDataRoamingMicrosoftTeamsApplication Cache
AppDataRoamingMicrosoftTeamsCache
AppDataRoamingMicrosoft TeamsLogs
AppDataRoamingMicrosoftTeamsMedia-Stack
AppDataRoamingMicrosoftTeams*.txt (Cannot be implemented with FSLogix Profile Container, as it does not support file exclusion or exclusions based on wildcards)
UPDATE – 03-05-2020 (march 3, 2020):
The list of exclusions, below, has been updated. According to the Microsoft Teams documentation the AppDataRoamingMicrosoftTeamsMedia-Stack should be excluded and the same goes with AppDataRoamingMicrosoftTeams*.txt files
Teams Outlook Add-in
For some reason the Teams per-machine Outlook add-in is not loaded, so when a user launches Outlook and wants to arrange a new Teams meeting, the Teams add-in is simply not there, and it’s nowhere to be found in the list of available add-ins:
I would expect the add-in to be between the Skype add-in and the OneNote add-in, but it’s not. I am not entirely sure what is going on here, but I have found a workaround which should bring the Teams add-in back.
UPDATE – 03-05-2020 (march 3, 2020):
Teams has to be launched at least once to be able to access the Teams plugin. This means that even if you activate the plugin in Outlook,during first logon, it does not work until Teams is launched. For now I haven’t found any solution to that issue.
The workaround is a minor registry change in HKCU, configuring the LoadBehavior value for Microsoft Outlook add-ins:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USERSoftwareMicrosoftOfficeOutlookAddInsTeamsAddin.FastConnect]
“Description”=”Microsoft Teams Meeting Add-in for Microsoft Office”
“LoadBehavior”=dword:00000003
“FriendlyName”=”Microsoft Teams Meeting Add-in for Microsoft Office”
This should bring back the Teams outlook add-in. We can, once again, use our trusted Citrix WEM to do the import where we’ll create a nice little action group, with the Teams shortcut and the registry values like this:
Apply the Teams Auto Start filter rule we created earlier, in this way we have everything around Teams in one single group.
And here is the highly demanded Teams outlook add-in:
Citrix HDX Optimization
The last thing we need to do is to make sure that Citrix HDX Optimization has kicked in.
The Teams HDX Optimization is supported in Citrix Virtual Apps and Desktops 1906.2 and later and you’ll also have to use Citrix Workspace App 1907, however Citrix strongly recommends using Citrix Workspace App 1912 or 2002. You will also need Teams version 1.2.00.31357, however Citrix recommends version 1.3.00 .4461 or later.
Refer to this article for additional information:
https://support.citrix.com/article/CTX253754
If all of the above mentioned criteria have been met, you should see a “Citrix HDX Optimized” notification in Teams (in about -> version):
The Teams HDX Optimization enables Teams video and audio calls to be offloaded to the local endpoint device, this feature offloads a considerable amount of CPU usage on the Session Host/VDI to the endpoint. Be aware that the Teams HDX Optimization feature is not available on Linux based devices, at the moment it’s only supported on Windows devices.
Thank you for reading. If you have any questions feel free to contact me via Twitter, LinkedIN or in the World of EUC Slack channel.
Citrix Workspace app is the new universal app for all workspace services, that will encompass all Citrix clients and app capabilities over time.
Citrix Virtual Apps and Desktops, formerly XenDesktop, fits the enterprise need to bring both VDI and apps into a user-centric experience.
This article contains information about interoperability of Internet Explorer 11 for Windows 7 Service Pack 1, Windows 2008 R2 Service Pack 1 and Desktop Mode Internet Explorer 11 for Windows 8.1 Windows Server 2012 R2 with Citrix products. It outlines various known reported issues while using Microsoft Internet Explorer 11 in conjunction with the following listed Citrix products and known workarounds for respective issues:
XenApp
| XenApp 7.6 | XenApp 7.5 | XenApp 6.5 |
XenDesktop
| XenDesktop 7.6 | XenDesktop 7.5 | XenDesktop 7.1 | XenDesktop 5.6 |
StoreFront
| StoreFront 2.6 | StoreFront 2.5 | StoreFront 2.1 |
Citrix Receiver
| Citrix Receiver for Windows 4.1 | Citrix Receiver for Windows (Enterprise) 3.4 |
Web Interface
| Web Interface 5.4 |
Notes:
- Citrix Systems supports Microsoft Internet Explorer 11.
- Citrix Systems supports Microsoft Internet Explorer 11 Update KB2929437 for Windows 7 and Windows Server 2008 R2.
Citrix provides reasonable support for Internet Explorer 11 in XenApp and XenDesktop versions currently in mainstream maintenance. Citrix offers feasible workarounds for reported issues for Internet Explorer 11 in XenApp and XenDesktop versions currently in mainstream maintenance. For issues that do not have feasible workarounds, Citrix provides reasonable effort to supply hotfixes to address the issues.
This is a live article, and is updated as and when the new information becomes available.
Known Issues
The following are the known issues along with the respective workarounds:
| HDX Flash Client Side Rendering Feature Does Not Work | Logon on Drop-down Not Available on Web Interface Login Page |
| Security Warning While Connecting to Citrix Web Interface 5.4 | Prompt to Install Citrix Receiver Even After Installing Receiver |
| Server to Client URL Redirection Fails on XenApp | HTML5 based video not playing/rendering or slow performance |
Issue 1 - HDX Flash Client Side Rendering Feature Does Not Work
Description
HDX Flash client side rendering feature does not work until Internet Explorer 11 with HDX Flash redirection enabled on XenApp 6.5, XenDesktop 5.6 and XenDesktop 7.1 VDA. XenApp 6.5, XenDesktop 5.6, XenDesktop/XenApp 7.0/7.1/7.5 In XenDesktop/XenApp 7.6 and later have this registry key is automatically created and set to 11
Workaround
The registry key value IEBrowserMaximumMajorVersion is queried by the HDX Flash service to check for maximum Internet Explorer version that HDX Flash supports. For Flash Redirection to work with Internet Explorer 11, set the registry key value IEBrowserMaximumMajorVersion to 11 (decimal) on the machine where HDX flash service is running. In case of XenApp, it would be the XenApp Server and in case of XenDesktop, it would be the machine where VDA is installed.
Caution! Refer to the Disclaimer at the end of this article before using Registry Editor.
For a 32-bit operating system
HKEY_LOCAL_MACHINESOFTWARECitrixHdxMediaStreamForFlashServerPseudoServer
Add the entry named IEBrowserMaximumMajorVersion with a DWORD value = 11 (decimal). The hexadecimal equivalent is 0x0000000b.For a 64-bit operating system
HKEY_LOCAL_MACHINESOFTWAREWow6432NodeCitrixHdxMediaStreamForFlashServerPseudoServer
Add the entry named IEBrowserMaximumMajorVersion with a DWORD value = 11 (decimal). The hexadecimal equivalent is 0x0000000b
Note: The preceding mentioned workaround is applicable for XenApp 6.5 and XenDesktop 5.6 and 7.1.
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Issue 2 - Security Warning While Connecting to Citrix Web Interface 5.4
Description
After installing Internet Explorer 11 or upgrading Internet Explorer 9 or 10 to 11 an Internet Explorer security warning message might be noticed while connecting to Citrix Web Interface 5.4.
Workaround
In Internet Explorer Options > Security tab, add the Web Interface site to Trusted Sites to resolve this issue.
Note: The preceding mentioned issue and workaround is applicable for Windows 7 Service Pack1, Windows 8.1, Windows Server 2008 R2 and Windows Server 2012 R2.
Issue 3 - Server to Client URL Redirection Fails on XenApp
Description
Server to Client URL redirection feature of XenApp fails after upgrading to Internet Explorer 11.
Workaround
After installing Internet Explorer 11 on your XenApp server, the 64-bit version of Internet Explorer is set as default in some cases and URL redirection does not work with 64-bit version of Internet Explorer. Complete the following steps to resolve this issue:
On your XenApp server, open 32-bit Internet Explorer located at C:Program Files (x86)Internet Exploreriexplore.exe.
Go to Tools > Internet Options > Programs and click Make Internet Explorer the default browser.
Note: The issue reported is applicable for Windows 2008 R2 Service Pack 1 running XenApp 6.0 or XenApp 6.5.
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Issue 4 - Logon on Drop-down Not Available on Web Interface Login Page
Issue
A Log on Type drop-down option on the main Web Interface Login page, which allows users to pick the log on method is is not available.
Workaround
To resolve this issue:
In Internet Explorer Options > Security tab, add the Web Interface site to Trusted Sites.
Enable compatibility view for the site under Internet Options > Tools > Compatibility View Settings and add the Web Interface site to Compatibility View.
Restart Internet Explorer.
Note: Customer is using the Medium-High for security level.
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Issue 5 - Prompt to Install Citrix Receiver Even After Installing Receiver
Description
Users are getting prompted to install Citrix Receiver even after it was previously installed or Users might get Open Save Cancel dialog when attempting to launch published application or Desktop even after adding the Web Interface site to trusted sites in Internet Explorer > Tools > Security > Trusted Sites.
Workaround
To resolve this issue:
In Internet Explorer Options > Security tab, add the Web Interface site to Trusted Sites.
Enable compatibility view for the site under Internet Options > Tools > Compatibility View Settings add the Web Interface site to Compatibility View.
Restart Internet Explorer.
Note: When Medium-High security level is configured within Internet Explorer 11, Smart Screen Filter must be disabled.
The preceding mentioned issue is not observed with StoreFront 2.1.
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Issue 6 - HTML5 based video not playing/rendering or slow performance
Description
HTML5 based video doesn't play or plays with slow performance.
Workaround
Citrix Workspace Earlier Version
To resolve this issue:
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In Internet Explorer Options > Advanced tab, select Use software rendering instead of GPU rendering.
Restart Internet Explorer
Citrix 1907 For Windows
Disclaimer
Citrix Workspace 1907 Issues