Desktop viewer toolbar doesn’t show up in session

The black Desktop Viewer toolbar does not show up in the user XenApp or XenDesktop ICA session.


The issue is caused by NOT having the ShowDesktopViewer parameter set to On in the WebInterface.conf file on the Web Interface server.


To resolve this issue, complete the following procedure:

  • Logon to the machine hosting the Web Interface as an administrator user.
  • Open the C:InetpubwwwrootCitrixXenAppconf folder for Web Interface connections.
  • Open the C:InetpubwwwrootCitrixPNAgentconf folder for PNAgent connections.
  • Edit the WebInterface.conf file in both these locations.
  • Update the configuration file to remove the ‘#’ and set ShowDesktopViewer=On.

More Information

Desktop Viewer

  • It is officially supported in XenDesktop environments.
  • It is included with the online plug-in and is installed by default on client devices.
  • It is available in Windowed Mode or Full Screen Mode.
  • It integrates easily into single and multiple monitor environments.
  • The toolbar provides easy access to Display and HDX preferences.
  • It provides toolbar shortcuts to switch between multiple Hosted Shared Desktop sessions with ease.

Read the original article here at the Citrix knowledgebase.

XenDesktop 5.x VDA Registry Based Registration – Best Practices

Registry based VDA Registration

List more than one controller on ListOfDDCs registry key separated by a space to prevent registration issues if a controller is not available.

• Example DDC5.xd.local DDC6.xd.local

o HKEY_LOCAL_MACHINE SoftwareCitrixVirtualDesktopAgentListOfDDCs

o 64Bit – HKEY_LOCAL_MACHINESoftware Wow6432CitrixVirtualDesktopAgentListOfDDCs (REG_SZ)

Ensure all values listed under ListOfDDCs map to a valid fully qualified domain name to prevent startup registration delays.

XenDesktop 5.5 and higher supports registration groups by adding parenthesis around each group. This feature addition allows you to create groups of brokers to load balance Virtual Desktop Agent registrations. Once you have defined groups of brokers, registrations attempts are made against Broker 1 in Group 1, then against Broker 2 in Group 1, and so on. If all registration attempts against Group 1 brokers fail, attempts are made against Group 2 brokers, and so on.

• Example (DDC1.local.domain DDC2.local.domain) (DDC3.local.domain DDC4.local.domain)

Note:The VDA (Citrix Desktop Service) will randomly select DDCs from the list (grouped or ungrouped) until a successful connection to a DDC is established.

More Information

CTX130369 – Citrix XenDesktop 5.5 – Issues Fixed in This Release

CTX118976 – How to Configure XenDesktop to Function Without an Organizational Unit in Active Directory

CTX132536 – Worker Unregisters at Session Launch

You can read the entire knowledgebase article here.

Recently released Citrix hotfixes

Here’s an overview of recently released hotfixes from Citrix.


LIMITED RELEASE – Hotfix Rollup Client (Version 13.1.100) for Citrix Receiver for Windows 3.1 – English

LIMITED RELEASE – Hotfix Rollup Client (Version 13.0.100) for Citrix Receiver for Windows 3.0 – English

XenApp 5 on 2003 Continue reading “Recently released Citrix hotfixes”

Installing a XenDesktop 5 PoC

Before we run through a basic proof-of-concept install, let’s talk about some of the key differences between XD4 and XD5.  There are some significant terminology changes from previous releases of XD (this is Citrix, so no surprise, right?!): Continue reading “Installing a XenDesktop 5 PoC”