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Launching an App-V virtualized application on a Remote Desktop Web Access server launches the wrong virtualized application

When users login to a Remote Desktop Session Host server using a Remote Desktop Connection, all of the Microsoft Application Virtualization (App-V) applications work properly, however when users launch the same App-V applications on a Remote Desktop Web Access server the wrong virtualized app is launched. For example, the users receive App-V application B when App-V application A is selected even though the icon and the application names are displayed correctly.

When the RemoteApps are configured using the RemoteApp configuration wizard, an Alias parameter is configured automatically. Since sfttray.exe is the application for all App-V virtualized apps, once the 2nd App-V application is added, the Alias parameter cannot be same name as another application therefore the Wizard increments the file name with a (1), (2) etc. An example of this is below:

App Alias
App1 (Sfttray)
App2 (Sfttray1)
App3 (Sfttray2)
App4 (Sfttray3)
App Alias
App1 (Sfttray1)
App2 (Sfttray2)
App3 (Sfttray3)
App4 (Sfttray)
App Alias
App1 (Sfttray3)
App2 (Sfttray2)
App3 (Sfttray1)
App4 (Sfttray)

You will notice that the Alias is different for each one of the applications on each server. For example, the Alias for App1 on Server 1 is Sfttray, on Server 2 it is Sfttray1, and on Server 3 it is Sftray3. This is the source of the problem as the Aliases need to be identical for each application on each server.
To resolve this issue, edit the RemoteApp parameters for the App-V application so that the Alias parameters are the same for each application across all Remote Desktop Session Host servers. It is recommended that the application name referenced after the /launch switch of the sfttray command be used for the Alias.

Example where the App-V launch commands are:

App1 -sfttray.exe /launch "App1"
App2 -sfttray.exe /launch "App2"
App3 -sfttray.exe /launch "App3"
App4 -sfttray.exe /launch "App4"

Change the App1,2,3,4 RemoteApp configurations as follows:

App                   Alias
App1              (Sfttray)
App2              (Sfttray1)
App3              (Sfttray2)
App4              (Sfttray3)


App1              App1
App2              App2
App3              App3
App4              App4

Make this change on all Remote Desktop Session Host servers.
The most common scenario in which this can happen is when you have multiple Remote Desktop Session Host servers and Remote Desktop Web Access servers that are load balanced. When the App-V applications are manually installed on each Remote Desktop Session Host server, they may or may not have not been installed in exactly the same order. Also, the Applications configured in the RemoteApp Program wizard may or may not have not been configured in exactly the same order on the 3 Remote Desktop Session Host servers, thus the Alias names may not be in sync and in the same order on each server.

Application Virtualization 4.6 for Windows Server 2008 R2 Remote Desktop Services - whitepaper -

jfb RD Session host servers Remote Desktop Connection RD Web Access Server Alias RemoteApps AppV App V App-V Softgrid Applications swapped crossed switched Terminal Servers RDS Remote Desktop Services RemoteApp
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 2638538 - Last Review: 11/28/2011 21:37:00 - Revision: 8.0

Microsoft Application Virtualization 4.5 for Terminal Services, Microsoft Application Virtualization 4.6 for Terminal Services, Microsoft Application Virtualization 4.6 for Terminal Services Service Pack 1

  • KB2638538