Hotfix package name: XA650R06W2K8R2X64022.MSP
For: Citrix XenApp 6.5 for Windows Server 2008 R2 with Hotfix Rollup Pack XA650W2K8R2X64R06 installed.
Replaces: XA650R06W2K8R2X64001, XA650R06W2K8R2X64010, XA650R06W2K8R2X64017
Date: May, 2016
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.

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. On systems with Fix #LC2702 (included in Hotfix Rollup Pack 6) applications can fail to save on client mapped drives and generate corrupt files instead.

   [From XA650R06W2K8R2X64022][#LC3976]

Fixes from Replaced Hotfixes

1. The svchost.exe process for Terminal Services might close unexpectedly with an application Event ID 1000 and can cause the Remote Desktop and Receiver connections to the server to fail.

   [From XA650R06W2K8R2X64001][#LC1419]

2. When you attempt to access from the same device and while the session state is active - a published desktop after a client disconnect, the following error can appear:

   "Connection Error: You already have an instance of this application open and are not allowed to run more than one instance. Please contact your System Administrator."

   This can occur when the "Allow only one instance of application for each user" option is enabled in the Published Application Properties of the desktop.

   To enable the fix, set the following registry key:

   HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\Policies
   Name: AllowReconActiveDesktopOnSingleLimitMet
   Type: REG_DWORD
   Value: 0x00000001 (set "1" to enable and "0" to disable)

   [From XA650R06W2K8R2X64010][#LC2614]

3. Removing a smart card from the reader during session logon can prevent the session from properly terminating on the server. As a result, the server can exhibit a state where smart card logons for any future sessions are prevented.

   [From XA650R06W2K8R2X64010][#LC3020]

4. 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.

   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 XA650R06W2K8R2X64010][#LC3167]

5. When opening and saving changes to a file located on a mapped client drive using a published application, the modified time stamp does not update.

   [From XA650R06W2K8R2X64010][#LC3412]

6. In Citrix Receiver for Android published desktop sessions, attempts to open a Microsoft Outlook calendar invitation can fail with the following error message:

   "Cannot open item"

   The issue occurs with calendar invitation created by other users; invitations created by the same user are not affected.

   [From XA650R06W2K8R2X64017][#LC2828]

7. Attempts to append data to files on a mapped client drive might fail when the files are opened by users with write-only permissions. The issue occurs when running the PowerShell command "get-process | out-file -filepath "\\client\c$\temp\proclist.txt" -Append" for the second time.

   [From XA650R06W2K8R2X64017][#LC3895]

8. Printer redirection can intermittently fail.

   [From XA650R06W2K8R2X64017][#LC4584]

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.
2. Highlight the hotfix you want to uninstall and click Uninstall.
3. Follow the directions on-screen.

Files Updated (All Dates/Times UTC)