Filename: ICAWS760WX86043.msp
For: XenApp 7.6; XenDesktop 7.6 VDA Core Services for Windows Desktop OS (32-bit). For operating system requirements, see System Requirements on the Citrix Product Documentation site.
Replaces: ICAWS760WX86004, ICAWS760WX86005, ICAWS760WX86010, ICAWS760WX86012, ICAWS760WX86013, ICAWS760WX86015, ICAWS760WX86017, ICAWS760WX86019, ICAWS760WX86022, ICAWS760WX86025, ICAWS760WX86026, ICAWS760WX86029, ICAWS760WX86032,
Date: June, 2016
Languages supported: English (US), Japanese (JA), Simplified Chinese (SC)
Readme version: 1.00

Readme Revision History

Important Note(s)

• This release is based on Version 7.6 of the VDA Core Services for Windows Desktop (32-bit). It patches only systems where Version 7.6 of the VDA Core Services for Windows Desktop (32-bit) is installed. Any known issues in Version 7.6 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 XenApp and XenDesktop 7.6 on the Citrix Product Documentation site.

New Fixes in This Release

1. In dual-monitor HDX 3D Pro VDA sessions that are calibrated to to 150% DPI, the mouse pointer and other screen art-effects can appear outside the VDA session and thus be inaccessible.

   [From ICAWS760WX86043][#LC2502]

2. The Citrix policy "View window contents while dragging" does not work correctly.

   [From ICAWS760WX86043][#LC3552]

3. A VDA might stop accepting connections. After enabling the "Legacy graphics mode" policy, the VDA starts accepting connections again.

   [From ICAWS760WX86043][#LC3749]

4. With the Citrix Windows XP Display Driver Model (XPDM) display driver enabled, the mouse shadow setting is always enabled even though it is disabled in the Control Panel.

   [From ICAWS760WX86043][#LC3806]

5. When using Microsoft Internet Explorer on an HDX 3D Pro desktop, the mouse cursor does not revert from the "Horizontal resize" to the "Normal" shape when you move the cursor back inside the window from the left edge position.

   [From ICAWS760WX86043][#LC3849]

6. When using Citrix Receiver for HTML5 to access an Arizona-based VDA during daylight saving time, the session time zone might not properly reflect the local time even though the Citrix policies are set correctly.

   [From ICAWS760WX86043][#LC3858]

7. VDAs can experience a fatal exception on picadd.sys, displaying a blue screen, upon logoff from a Citrix Receiver session.

   [From ICAWS760WX86043][#LC4360]

Fixes from Replaced Hotfixes

1. If the Windows Remote Desktop Session Host Configuration policy setting "Always prompt for password upon connection" is enabled, when users log on to VDA 7.x by using the ICA protocol, users receive a prompt to enter their credentials again.

   To enable this fix, set the following registry key:

   HKEY_LOCAL_MACHINE\Software\Citrix\Portica
   Name: AutoLogon
   Type: DWORD
   Data: 0x00000001 (value must be between 1 and 2147483647)

   Note: The Citrix Display Drive can be marked for deletion if there are multiple attempts to run the MSP file. This causes the installation of the hotfix to fail. In addition, the display resolution of the VDA might not work. To allow this to work, restart the VDA and then install the hotfix again.

   [From ICAWS760WX86004][#LC1180]

2. When Desktop Composition Redirection (DCR) is used on wide area network (WAN) connections, web pages or documents that show text and graphic content might become unresponsive and can also consume high bandwidth.

   [From ICAWS760WX86005][#LC1256]

3. Under certain conditions, desktop sessions connecting through session reliability might experience loss of audio connectivity.

   [From ICAWS760WX86005][#LC1257]

4. The final image quality might degrade if the settings "Build to lossless" and "Allow Visually Lossless Compression" are enabled on the Desktop Delivery Controller (DDC).

   [From ICAWS760WX86005][#LC1271]

5. When users log on for the first time, the screen might appear corrupted in the Receiver session. The issue occurs when you change Visual quality to "Build to lossless" and enable the "Allow visually lossless compression" setting.

   [From ICAWS760WX86005][#LC1272]

6. This fix addresses a usability issue with Desktop Composition Redirection with Receiver for Windows prior to Version 4.200 when used over LAN connections.

   [From ICAWS760WX86005][#LC1507]

7. This fix allows creation of persistence registry settings for user devices.

   [From ICAWS760WX86010][#LC1827]

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

   [From ICAWS760WX86010][#LC2177]

9. When users log off from XenDesktop, in XenCenter or the vSphere console, the user desktop session appears for several seconds.

   [From ICAWS760WX86012][#LC1782]

10. If users start a Receiver session when there are existing Remote Desktop and console sessions to the same RemotePC VDA, the Receiver session fails with the message "Reconnecting...." This message appears indefinitely until users manually close the Receiver session.

    [From ICAWS760WX86013][#LC0627]

11. When users connect by using single sign-on to StoreFront through NetScaler Gateway where ICA proxy is enabled and then log off and log on again, VDA policies do not work. When users disconnect and then reconnect, the policies work.

    [From ICAWS760WX86013][#LC2577]

12. If legacy graphics are enabled, mouse pointer shadowing is not automatically disabled.

    [From ICAWS760WX86015][#LC2222]

13. The time zone is not correct when users log on with Receiver for Windows. For this hotfix to work correctly, you must install the following:

    1. The same Microsoft time zone update hotfix on the user device and the server. For example, if Microsoft Hotfix KB2998527 is installed on the user device, install this hotfix on the server.
    2. Microsoft Hotfix KB2870165 on the server if the server operating system is Windows Server 2008 R2 Service Pack 1.
    3. Fix #LC1392 is installed on the user device.

    [From ICAWS760WX86017][#LC1061]

14. When reconnecting to a Receiver session, the CPU consumption can be high if many Windows Explorer instances are running on a VDA. Additionally, minimized windows get maximized intermittently before getting minimized into the Windows taskbar again.

    [From ICAWS760WX86019][#LC0315]

15. If the keyboard layout of the user device is different from the keyboard layout of the VDA, the display might become unresponsive for about 60 to 70 seconds while starting a virtual desktop session from Receiver for Windows.

    [From ICAWS760WX86019][#LC1939]

16. If the default Unicode input language of the user device is different from the input language of the VDA, the session might become unresponsive while the session desktop is loading.

    [From ICAWS760WX86019][#LC2287]

17. If the keyboard layout of the user device is different from the keyboard layout of the VDA, the session might become unresponsive while the session desktop is loading.

    [From ICAWS760WX86019][#LC2466]

18. A "Connection Established, Negotiating Capabilities" pop-up window appears from the Receiver when the VDA becomes unresponsive. To start any other sessions successfully, restart the VDA.

    [From ICAWS760WX86022][#LC0909]

19. Users cannot switch from a Remote Desktop (RDP) session to a Receiver session.

    [From ICAWS760WX86022][#LC1383]

20. If the UxPersistence key is enabled in the registry, attempts to move applications to the edge of the screen by using the Windows key and the left or right arrow keys fail after disconnecting and then reconnecting to a session.

    [From ICAWS760WX86022][#LC1684]

21. Playing an audio file from Receiver for HTML5 where SSL is enabled in the ICA session can cause the VDA to experience a fatal exception. displaying a blue screen.

    [From ICAWS760WX86022][#LC1752]

22. If the VDA is installed by using the command switch /servervdi, Virtual Channels do not appear in HDX supported applications, such as Thinwire Advanced, Flash or Media Player.

    [From ICAWS760WX86022][#LC1894]

23. The CPU consumption of the WMI Provider Service can be higher in Windows server and desktop VDA and causes the VDAs to become unresponsive. Also, the Receiver connection fails.

    [From ICAWS760WX86022][#LC2041]

24. Occasionally, window positions are not retained when users reconnect to a VDA and are using multiple monitors.

    [From ICAWS760WX86022][#LC2075]

25. In a XenDesktop session, a message box appears that says a service wants to show a message. When the user clicks "View the message," the XenDesktop session shows a black screen. The issue occurs when the XenDesktop VDA is already using session 0.

    [From ICAWS760WX86022][#LC2160]

26. If users log on to the Web Interface from within a VDA desktop session and attempt to start the same desktop, the session might disconnect and the VDA becomes unresponsive. As a result, users might not be able to start the desktop and the VDA must be restarted.

    [From ICAWS760WX86022][#LC2267]

27. Users cannot start applications after updating cipher registry keys. To apply this fix, install the new version of the SSL SDK.

    [From ICAWS760WX86022][#LC2729]

28. When users reconnect to a VDA, if "User Experience Persistence" is enabled, application windows can be in an incorrect state, such as maximized instead of restored.

    [From ICAWS760WX86022][#LC2769]

29. With this fix, the bandwidth cap for HDX network traffic is 20 megabits per second (Mbps).

    [From ICAWS760WX86022][#LC2780]

30. This release includes support for the Framehawk Virtual Channel, a new ICA virtual channel that extends Citrix HDX technologies to improve user experience on broadband wireless connections where packet loss and latency are common issues. For more information, see New in XenApp 7.6 and XenDesktop 7.6.

    [From ICAWS760WX86022][#LC2782]

31. This release includes an enhancement that allows users that log on with Receiver for HTML5 or Receiver for Chrome to transfer files through remote sessions and local devices. For more information, see Receiver for Chrome or Receiver for HTML5.

    [From ICAWS760WX86022][#LC3014]

32. The VDA might become unresponsive if a VDA session is maximized when using graphic applications.

    [From ICAWS760WX86025][#LC0908]

33. In rare cases, installing or reinstalling the MSP hotfix package can cause the Citrix Display Driver (Citrix Systems – WDDM) to be marked for deletion. This causes the installation to fail, which leaves the VDA’s display resolution unusable.

    [From ICAWS760WX86025][#LC3312]

34. Windows Server 2008 R2 and Windows Server 2012 R2 might experience a fatal exception when users connect with Receiver for Windows.

    [From ICAWS760WX86026][#LC2179]

35. Graphics can appear blurred in VDA sessions in HDX 3D Pro environments with an NVidia Grid K1 graphics board and if the VDA is connected to a high latency WAN network.

    [From ICAWS760WX86029][#LC2877]

36. The mouse cursor might disappear after the user locks or unlocks a session for a few times on an HDX 3D Pro desktop.

    [From ICAWS760WX86029][#LC3188]

37. When the Desktop Viewer switches from full-screen mode to window mode, the HDX 3D Pro session might become unresponsive for a few minutes.

    [From ICAWS760WX86029][#LC3193]

38. The VDA might become unresponsive if a VDA session is maximized when using graphic applications.

    [From ICAWS760WX86029][#LC3279]

39. When switching a Receiver connection to a Remote Desktop (RDP) session for a VDI, if the user answers "No" in the transfer logon dialog box for the RDP connection, reconnecting with Receiver fails with a status 1030.

    [From ICAWS760WX86032][#LC1696]

40. When a Citrix Receiver session is viewed in the HDX area of Director, priority warnings might incorrectly appear for most of the virtual channels.

    [From ICAWS760WX86032][#LC2247]

41. When a Citrix Receiver session is viewed in the HDX area of Director, priority warnings might incorrectly appear for most of the virtual channels.

    [From ICAWS760WX86032][#LC2370]

42. This fix addresses a memory issue in an underlying component caused by vd3dvc.dll.

    [From ICAWS760WX86032][#LC3234]

43. After applying Fix #LC0898 and configuring Session Roaming, creating printers in client printers and session printers fail.

    [From ICAWS760WX86032][#LC3419]

44. Attempts to start VM hosted apps might fail if users indirectly belong to a nested group that is set to limit visibility.

    [From ICAWS760WX86032][#LC3589]

45. If an endpoint loses network connectivity for several minutes, reconnection attempts can fail until the VDA is restarted.

    [From ICAWS760WX86032][#LC3700]

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 Desktop 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)