Hotfix package name: XA650R07W2K8R2X64022.MSP
For: Citrix XenApp 6.5 for Windows Server 2008 R2 with Hotfix Rollup Pack XA650W2K8R2X64R07 installed.
Replaces: XA650R07W2K8R2X64002, XA650R07W2K8R2X64015, XA650R07W2K8R2X64019
Date: January, 2018
Languages supported: English (US), German (DE), Spanish (ES), French (FR), Japanese (JA), Simplified Chinese (SC)
Readme version: 1.00

Readme Revision History

Important Notes about This Release

• Note: As a best practice, Citrix recommends that you install this and other hotfixes only if you are affected by the specific issues they resolve. Otherwise, Citrix recommends that you wait for the next hotfix rollup pack for your product release. Hotfix rollup packs consolidate most previously released hotfixes and allow you to update systems in a convenient, single installation.
• Important: Installing this hotfix over an ICA session is not supported but you can install it through a remote desktop session using an administrator account.
• 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.

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.

Where to Find Documentation

This document describes the issue(s) resolved by this release and includes installation instructions. For additional product information, including system requirements, see XenApp 6.5 on the Citrix Product Documentation site.

New Fixes in This Release

1. Servers might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x22.

   [From XA650R07W2K8R2X64022][#LC6177]

Fixes from Replaced Hotfixes

1. An external USB DVD drive that is mapped into a session as a mapped client drive can cause slow session performance.

   To enable the fix, set the following registry key:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Picadm\Parameters 
   Name: OptimizeUSBSlowRead
   Type: REG_DWORD
   Value: 1

   [From XA650R07W2K8R2X64002][#LC5231]

2. VDAs might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x7E and 0xA.

   [From XA650R07W2K8R2X64002][#LC5438]

3. When publishing a third-party application, a text file with a list of items is created on the user device by using client drive mapping. If the text file to be written is located on the user device that already exists, then the original file is not overwritten and the new data appends to the existing data at the end of the file.

   [From XA650R07W2K8R2X64015][#LC4427]

4. s

   When you modify a text file that is located on a mapped client drive in a session, the ""ate Modified" property is not updated correctly.

   [From XA650R07W2K8R2X64015][#LC5023]

5. With the client drive mapping setting "CacheTimeou"" set to "0" under the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\picadm\Parameters, Microsoft Excel files might get corrupted.

   Note: Installing fix #LC5026 can invalidate fix #LC0288; this is by design.

   [From XA650R07W2K8R2X64015][#LC5026]

6. When reading a file from a mapped client drive, the old, cached file length might be returned if the file length was changed outside of the client session. Additionally, null characters are inserted for any deleted characters.

   To enable the fix, set the following registry value to "0":

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\picadm\Parameters
   Name: CacheTimeout
   Type: REG_DWORD
   Value: Default value is 60 seconds. If CacheTimeOut is set to "0," the file length is reloaded immediately and if not it is loaded after the defined timeout.

   [From XA650R07W2K8R2X64015][#LC6314]

7. On systems with Hotfix Rollup Pack 7 installed, servers might experience a fatal exception, displaying a blue screen, on picadm.sys with bugcheck code 0x00000050 (PAGE_FAULT_IN_NONPAGED_AREA).

   [From XA650R07W2K8R2X64019][#LC6985]

Installing and Uninstalling This Release

Notes:

• This hotfix 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 hotfix successfully, servers must not have registry modification restrictions in place.
• Slipstreaming - installations of the XenApp Server 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 hotfix, you must uninstall the hotfix before reinstalling it according to the installation instructions below.

To install this hotfix:

1. Copy the hotfix package to an empty folder on the hard drive of the server you want to update.
2. Close all applications.
3. Run the executable.
4. Restart the server. This ensures that the installation completes and that the hotfix is added to the AppCenter hotfix inventory list.

To uninstall this hotfix:

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

Files Updated (All Dates/Times UTC)