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SUPERSEDED: Citrix XenDesktop Virtual Desktop Agent, Version 4.0.4529 (XDE400VDAWX86001) - For Citrix XenDesktop 4.0

  • CTX124063
  • Created On  Feb 22, 2010
  • Updated On  May 07, 2014
  • 3 found this helpful
  • Software Update
  • Type : Public

Citrix Virtual Desktop Agent, Version 4.0.4529 (XDE400VDAWX86001)



Replaces: None
Date: February, 2010
Language: English (US)
Readme version: 1.00

Readme Revision History

Version Date Change Description
1.00 February, 2010 Initial release

Important Note(s)

Caution! This hotfix may require you to edit the registry. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

Where to Find Documentation

This document describes the issue(s) resolved by this release and includes installation instructions. For additional product information, see Citrix eDocs, the Citrix Product Documentation Library.

New Fixes in This Release

  1. When an image located on a network drive is used as the desktop background, that desktop background is not restored after reconnecting to a disconnected session.

    [From XDE400VDAWX86001][#214342]

  2. The CGPServer Service (CitrixCGPServer.exe) can consume 100% of CPU power.

    [From XDE400VDAWX86001][#215847]

  3. After switching from a virtual desktop session to the local endpoint device, the Wave (volume) level on the endpoint device is set to zero.

    [From XDE400VDAWX86001][#218785]

  4. Changes to client printer mapping policies are applied to new sessions, but do not take effect for reconnected sessions. With this fix, printing policies are refreshed upon reconnect and session printers rebuilt accordingly.

    [From XDE400VDAWX86001][#220509]

  5. Note: This fix is not compatible with SpeedScreen Multimedia Acceleration. If you are affected by the issue and want to install this fix, you must permanently disable SpeedScreen Multimedia Acceleration - either on the Desktop Delivery Controllers or on individual affected endpoint devices - before installing this fix.

    This fix resolves an issue where the audio portion of a video stream fails to resume after reconnecting to a disconnected session on a Virtual Desktop Agent running Windows XP.

    To disable SpeedScreen Multimedia Acceleration on an endpoint device:

    Change the following ICA parameter in the registry or in the ICA file:

    HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Multimedia
    Name: SpeedScreenMMA
    Type: REG_SZ
    Data: False

    To disable SpeedScreen Multimedia Acceleration on Desktop Delivery Controllers:

    1. At a command prompt, cd to C:\Program Files\Citrix\Desktop Delivery Controller.
    2. Execute PorticaSetDefaults.exe /o <filename.xml> to create an editable settings XML file.
    3. Open the xml file created in the previous step and locate the SpeedScreen Multimedia section.
    4. Change the entry for <Enabled>true</Enabled> (default) of the SpeedScreen Multimedia section to <Enabled>false</Enabled>.
    5. Save your changes.
    6. Reimport the settings using Porticasetdefaults /i. The settings will take effect the next time a Virtual Desktop Controller registers against this Desktop Delivery Controller.
    7. Repeat the previous step on every Desktop Delivery Controller that conducts VDA registrations.

    [From XDE400VDAWX86001][#220618]

  6. Connection attempts to blade Virtual Desktop Agents can fail because Thinwire is not allowed to be a local display driver.

    [From XDE400VDAWX86001][#221373]

  7. After upgrading from Virtual Desktop Agent Version 3.1.3236 (XDE310VDA002) to Version 3.1.3242 (XDE310VDA004), ICA counters are missing from Performance Monitor.

    [From XDE400VDAWX86001][#221406]

  8. The KeepAlive feature does not function properly because the KeepAlive timer fails to start.

    [From XDE400VDAWX86001][#221813]

  9. Audio quality in virtual desktop sessions can be poor when persistent cache is enabled.

    [From XDE400VDAWX86001][#224015]

  10. After disconnecting and reconnecting to a Version 4.0.4522 Virtual Desktop Agent running on 64-bit Windows 7, application windows are repositioned to different locations.

    [From XDE400VDAWX86001][#224280]

  11. If the disconnect timer (HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\PortICA\Session DisconnectTimer\MaxDisconnectTime) is set to 0 so that disconnected sessions are logged off immediately, sessions are not logged off for one minute. With this fix, the polling interval is set to 100 milliseconds so that the logoff is triggered almost immediately.

    [From XDE400VDAWX86001][#225578]

  12. When connecting from a multiple monitor endpoint device to a Version 4.0.4522 Virtual Desktop Agent running on Windows 7 with DesktopViewer enabled, resizing the session from being maximized on a single monitor to being maximized across dual monitors causes applications to be displayed behind the taskbar.

    [From XDE400VDAWX86001][#225640]

Fixes from Replaced Hotfixes

No hotfixes were replaced by this release.

Installing This Release


  • This version is packaged as a .zip file containing the replacement XdsAgent.msi file. For more information about deploying msi files, see Microsoft article 884016 or visit the Microsoft Web site and search on keyword msiexec.
  • To install this version successfully, servers must not have registry modification restrictions in place.

To install this version:

  1. Copy the file to a shared folder on the network.
  2. Extract the compressed file and save the XdsAgent.msi file on the computer you want to update.
  3. Run the .msi file.
  4. Restart the computer if prompted to do so.

If it does not exist already, this will add a new entry, Citrix Virtual Desktop Agent, to the Add/Remove Programs list.

Copyright © 2010 Citrix Systems, Inc. All rights reserved.
Citrix is a registered trademarks, and Citrix XenApp, Citrix XenApp for UNIX, Citrix XenServer, and Citrix XenDesktop are trademarks of Citrix Systems, Inc. in the United States and other countries.
All other trademarks and registered trademarks are the property of their respective owners.

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