Filename: ICATS750WX64035.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: ICATS750WX64009, ICATS750WX64014, ICATS750WX64023, ICATS750WX64030
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. Attempts to work on a file that resides on a Client Drive Mapping (CDM) drive might result in a deadlock on picadm.sys and can cause the published desktop to become unresponsive.

   [From ICATS750WX64035][#LC2312]

Fixes from Replaced Hotfixes

1. If legacy client drive mapping is enabled as described in Knowledge Center article CTX127968, overwriting a file in the mapped client root folder from the published application might fail.

   [From ICATS750WX64009][#LC0302]

2. A deadlock in picadm.sys can cause servers to become unresponsive.

   [From ICATS750WX64014][#LA2010]

3. The operating system experiences an error on picadm.sys and a blue screen appears with bugcheck code 0x22.

   [From ICATS750WX64014][#LC0227]

4. If the "File redirection bandwidth limit" and "Overall session bandwidth limit" policies are set, the session might exit unexpectedly.

   In order to address the issue, you must install both a server update that contains Fix #LA5925, plus Receiver for Windows 4.1.200 or later , and then set the following registry key on the server:

   • Create the following registry key:
     HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\picadm\Parameters
     Name: DisableHighThroughput 
     Type: REG_DWORD
     Value: 1
   • Change the following registry key:
     HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\picadm\Parameters
     Name: MaxNetCommands 
     Type: REG_DWORD
     Value: <Set to a smaller value>

   [From ICATS750WX64023][#LA5925]

5. When a user who is not assigned permission to delete a given file in a session attempts to delete that file, the file does temporarily disappear from view and then reappears when you refresh the window.

   [From ICATS750WX64023][#LC0542]

6. The operating system experiences an error on picadm.sys and a blue screen appears. The issue occurs when the value of "TrucationResource" becomes null.

   [From ICATS750WX64030][#LC1430]

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)