Force Desktops to launch in full screen mode in XenDesktop and XenApp 7.5

In earlier versions of XenApp you could make a desktop full screen in the published application settings. In XenApp/XenDesktop 7.5 this setting is no longer available. It’s a little bit of an annoyance to have to click the top menu of Desktop Viewer to make it full screen, but even then it won’t stretch across both screens in a dual monitor setup.

Lal Mohan at Citrixology has a very good post on how to edit StoreFront to launch a desktop in full screen mode.

On your StoreFront server, open the C:inetpubwwwrootCitrix<StoreName>App_Datadefault.ica file in Notepad, and add the line “DesktopViewer-ForceFullScreenStartup=true” under the [Application] section.

XenApp or XenDesktop applications fail to launch

When accessing my StoreWeb URL, I clicked on an application icon and it would never launch, and at the bottom of the icon the circle would spin continuously. Citrix article CTX128009 fixed the issue.

Use the following registry key that allows you to configure the time-out as follows:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlCitrixwfshellTWI

Name: ApplicationLaunchWaitTimeoutMS
Type: REG_DWORD
Data: <required additional time-out, in milliseconds>

Note: Specifying a value of less than 10000 reverts to 10000 because 10 seconds is the minimum override.

 

Create the following registry key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlCitrixwfshellTWI
Value Name: LogoffCheckerStartupDelayInSeconds
Type: REG_DWORD
Value: An integer that denotes the time to wait for the application to start (10 Hexadecimal recommended)
Note: Setting this value also increases the time it takes for a user to log off the server.It is more useful as a troubleshooting step to confirm that the issue is due to the length of time required for your application to launch.

XenDesktop and XenApp black or frozen screen

This issue affects XenApp 7.5; XenDesktop 7.1 and 7.5 VDA Core Services for Windows Server OS (64-bit). After launching a published desktop or application, the screen may be completely black, or it may freeze.

Since this issues affects the default graphics mode, I’m scratching my head, amazed that Citrix doesn’t include this fix in the ISO download of XenDesktop/XenApp 7.x. To make matters worse, you can’t just visit the Citrix site and download this hotfix, you have to open a support ticket and they must email you a download link.

See CTX139901 for more info.

How to disable Citrix desktop auto launch in StoreFront

I’m not sure why Citrix thought it would be a good idea to automatically launch a published desktop in the Citrix Receiver for Web (StoreWeb) site in StoreFront and assumed that users wouldn’t want to launch an application instead. It seems logical to not auto launch a desktop and have the administrator edit this config file value if they DO want it to auto launch.

To disable desktop auto launch:
Complete the following steps to disable the desktop launch:

  1. Go to C:inetpubwwwrootCitrixStoreWeb directory.
  2. Open the Web.config file with notepad.
  3. Set the autoLaunchDesktop parameter to “false”.
autoLaunchDesktop
  1. Save the web.config file.