Filename: ICATS750WX64032.msp
For: XenApp 7.5; XenDesktop 7.1 and 7.5 VDA Core Services for Windows Server OS (64-bit). For operating system requirements, see Citrix Product Documentation.
Replaces: ICATS750WX64007, ICATS750WX64008, ICATS750WX64012, ICATS750WX64020, ICATS750WX64022, ICATS750WX64028, XD710ICATSWX64002, XD710ICATSWX64003, XD710ICATSWX64004
Date: July, 2015
Languages supported: English (US), German (DE), Spanish (ES), French (FR), Japanese (JA), Simplified Chinese (SC)
Readme version: 1.00

Readme Revision History

Important Note(s)

• This release is based on Version 7.1/7.5 of the VDA Core Services for Windows Server (64-bit). It patches only systems where Version 7.1/7.5 of the product is installed. Any known issues in Version 7.1/7.5 of the product, except for the specific issues resolved in this limited release, still apply.
• You can upgrade the VDA from a console session or from an RDP session. Upgrading from within an ICA session is not supported.
• Caution! This release 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, including supported operating systems and system requirements, see Citrix Product Documentation.

Important Disclaimer - Limited Release Hotfix

If the Download link is not available on this page and you wish to obtain this limited distribution release, visit our support site at http://www.citrix.com/support and open a support case using your Citrix account credentials, or contact your reseller at http://www.citrix.com/partners/locator.

Testing of this release was targeted only at the affected functionality, and regression and stress testing were minimal. Introduce this release to a test environment for evaluation before deploying it to a production environment.

TO THE EXTENT PERMITTED BY APPLICABLE LAW, CITRIX AND ITS SUPPLIERS MAKE AND YOU RECEIVE NO WARRANTIES OR CONDITIONS, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AND CITRIX AND ITS SUPPLIERS SPECIFICALLY DISCLAIM WITH RESPECT TO THE HOTFIX ANY CONDITIONS OF QUALITY, AVAILABILITY, RELIABILITY, SECURITY, LACK OF VIRUSES, BUGS OR ERRORS, OR SUPPORT AND ANY IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF TITLE, QUIET ENJOYMENT, QUIET POSSESSION, MERCHANTABILITY, NONINFRINGEMENT, OR FITNESS FOR A PARTICULAR PURPOSE. TO THE EXTENT PERMITTED BY APPLICABLE LAW, NEITHER CITRIX, NOR ITS SUPPLIERS SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL, MULTIPLE, PUNITIVE OR OTHER DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF DATA, LOSS OF INCOME, LOSS OF OPPORTUNITY, LOST PROFITS, COSTS OF RECOVERY OR ANY OTHER DAMAGES), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, AND WHETHER OR NOT FOR BREACH OF CONTRACT, NEGLIGENCE OR OTHERWISE, AND WHETHER OR NOT CITRIX, ITS SUPPLIERS, OR LICENSORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

New Fixes in This Release

1. Servers might experience a fatal exception, displaying a blue screen, on vdtw30.dll.

   [From ICATS750WX64032][#LC0471]

2. Occasionally, user sessions might become unresponsive and can fail to log off. This also occurs if users log off manually from the console.

   [From ICATS750WX64032][#LC0472]

3. The VDA servers experience an error on picadd.sys and a blue screen appears.

   [From ICATS750WX64032][#LC0798]

Fixes from Replaced Hotfixes

1. The Windows Event Viewer occasionally displays the following error message with Event ID 9026. The error is benign and can safely be ignored.

   "Error %1 received while obtaining a license for a Citrix XenApp client connection. A grace license has been granted."

   [From ICATS750WX64007][#LC0011]

2. Mouse pointer movements are not visible in the Lync conversation window if you share your virtual desktop.

   [From ICATS750WX64008][#LA4942]

3. The mouse pointer might not honor the boundaries of the desktop.

   [From ICATS750WX64008][#LC0383]

4. In sessions on VDAs with XD710ICATSWX64003 or XD710ICATSWX64004 installed, the mouse pointer might not honor the boundaries of the desktop.

   [From ICATS750WX64008][#LC0384]

5. This fix modified the enforcement of Always prompt for password upon connection (Computer Configuration > Policies > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Security > Always prompt for password upon connection) on Server OS VDAs.

   [From ICATS750WX64012][#LA5955]

6. Citrix XenApp 7.6 and XenDesktop 7.6 VDA Core Services running on Windows Server 2008 R2 (Server OS) might become unresponsive at the "Welcome" screen. If this occurs, new Receiver and Remote Desktop (RDP) connections to the server fail.

   [From ICATS750WX64012][#LC0405]

7. The VDA servers experience an error on icardd.dll and a blue screen appears.

   [From ICATS750WX64020][#LC1096]

8. The svchost.exe process running on Windows Server 2008 VDAs can exit unexpectedly during RDP connection attempts.

   [From ICATS750WX64022][#LA5868]

9. When establishing a Remote Desktop (RDP) connection to a VDA and then disconnecting from the RDP session, the following error message (Event ID 1048) appears in the event log:

   "The Citrix Desktop Service is re-registering with the DDC:
   "NotificationManager:NotificationServiceThread: WCF failure or rejection by broker (DDC: bruin.newer.ln)""

   [From ICATS750WX64022][#LC0251]

10. This release fixes redundant frames generated by the HDX graphics encoder, resulting in a smoother frame-rate and better interactivity.

    [From ICATS750WX64028][#LC2177]

11. Certain session time limit policies of Remote Desktop Services might fail to work on Windows Server 2012 VDAs.

    [From XD710ICATSWX64002][#LA5197]

12. The Citrix "Server idle timer interval" policy in Citrix Studio does not work for Windows Server 2012 VDAs.

    [From XD710ICATSWX64002][#LC0058]

13. The session graphics of certain applications can fail to update. As a result, the session appears frozen.

    [From XD710ICATSWX64003][#LA5061]

14. With the default graphics mode enabled, certain applications can prevent screen updates. As a result, the session can appear unresponsive.

    [From XD710ICATSWX64003][#LA5550]

15. Attempts to open Microsoft Office files in a virtual desktop session might take a longer time to open. Additionally, when a published application is started and then minimized, it can no longer be restored or maximized from the taskbar.

    [From XD710ICATSWX64004][#LA5342]

Installing and Uninstalling this Release

Notes:

• This release is packaged with Microsoft Windows Installer 3.0 as a .msp file. For more information about deploying .msp files, see Microsoft article 884016 or visit the Microsoft Web site and search on keyword msiexec.
• This installer program complies with Microsoft User Account Control (UAC). If UAC is enabled, you must run the installer program in elevated mode; that is, with administrative privileges enabled. For more information about UAC, see Microsoft TechNet or visit the Microsoft Web site and search on keyword UAC.
• To install this release successfully, computers must not have registry modification restrictions in place.
• Slipstreaming - installations of the VDA for Windows Server OS base product packaged with one or more individual hotfixes - is not supported and might leave servers in an unstable state.
• You must restart the server after the installation of this hotfix completes. However, if you are installing multiple hotfixes at the same time, there is no need to restart the server after the installation of each hotfix. It is sufficient to restart the server after the installation of the final hotfix completes.
• If the need arises to restore the original settings and functionality provided by this release, you must uninstall the release before reinstalling it according to the installation instructions below.

To install this release:

1. Copy the release package to an empty folder on the hard drive of the computer you want to update.
2. Close all applications.
3. Run the executable.
4. Restart the computer.

To uninstall this release:

1. From the Start menu, select Control Panel > Programs and Features.
2. Highlight the release you want to uninstall and click Uninstall.
3. Follow the directions on-screen.

Files Updated (All Dates/Times UTC)