Filename: ICATS760WX64048.msp
For: XenApp 7.6; XenDesktop 7.6 VDA Core Services for Windows Server OS (64-bit). For operating system requirements, see System Requirements on the Citrix Product Documentation site. 
Replaces: ICATS760WX64019, ICATS760WX64029, ICATS760WX64037
Date: December, 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 XenApp 7.6/XenDesktop 7.6 VDA Core Services for Windows Server (64-bit). It patches only systems where Version 7.6 of the product 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. The operating system experiences an error on picadm.sys and a blue screen appears with stop code 0x20.

   [From ICATS760WX64048][#LC3473]

2. The WFICA32.exe process might keep a file locked even after the file was closed by the associated published application. As a result, the file cannot be edited for a while.

   [From ICATS760WX64048][#LC3724]

3. A deadlock on picadm.sys can cause published applications to become unresponsive.

   [From ICATS760WX64048][#LC3872]

4. The operating system experiences an error on picadm.sys and a blue screen appears with stop code 0x50.

   [From ICATS760WX64048][#LC3921]

5. If you add a file to a user device folder while the associated published application is running and then try to open the file from within the application, the file might not appear in the application's Open File Dialog - even after clicking the Refresh button.

   [From ICATS760WX64048][#LC4073]

6. In a double hop-scenario, attempts to open a published application that was started by double-clicking a file on a mapped drive might fail and the following error message appears:

   "unable to open the file"

   [From ICATS760WX64048][#LC4114]

7. The VDA might become unresponsive at the "Welcome" screen due to a deadlock on picadm.sys.

   [From ICATS760WX64048][#LC4195]

Fixes from Replaced Hotfixes

1. 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 ICATS760WX64019][#LC1430]

2. Attempts to work on a file that resides on a mapped client drive might result in a deadlock on picadm.sys and can cause the published desktop to become unresponsive.

   [From ICATS760WX64029][#LC2312]

3. When opening a published application file from a mapped client drive and then saving the file after entering text, the modified time stamp does not update.

   [From ICATS760WX64037][#LC2305]

4. Attempts to use the attrib command to change file attributes of files on mapped dclient rives might fail.

   [From ICATS760WX64037][#LC3958]

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)