This Hotfix is no longer available. Please upgrade to 1906.2 or newer version.

Hotfix package name: hotfix-RFWIN-11642.zip
Filename: TwEncode.dll
For: Citrix Virtual Apps and Desktops 7 1906.1 Virtual Desktop Agent
System Requirements
Replaces: None
Date: July, 2019
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 hotfix is for Version 1906.1 of the Citrix Virtual Apps and Desktops 7 Virtual Delivery Agent (VDA). Any known issues in Version 1906 of the VDA, except for the specific issues resolved in this release, still apply.

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/supportand open a support case using your Citrix account credentials, or contact your reseller athttp://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 hotfix and includes installation instructions. For additional product information, including supported operating systems and system requirements, see Citrix Virtual Apps and Desktops 7 1906.1 on the Citrix Product Documentation site.

New Fixes in This Release

1.       Citrix Workspace App and Citrix Receiver for Windows sessions running on Version 1906.1 of the Virtual Delivery Agent can disconnect unexpectedly. The issue is limited to specific scenarios and connections from Windows clients. You can identify the issue in the Windows Event Log on the client device as shown in the following example:

Event Log: Windows – Application
Source: Ica Client (Vanadium)
Message: WindowsVanadium: TW Protocol error: Data rejected
Cmd = CMD_TW2_CACHE_PURGE_MEMORY_CACHE

[RFWIN-11642]

Fixes from Replaced Hotfixes

No hotfixes were replaced by this release.

Installing and Uninstalling this Release

To install this hotfix

Use the following steps to apply this hotfix:

1.       Log off all sessions running on the VDA.

2.       Perform the following steps according to the operating system of the VDA:

·         For 32-bit Desktop OS:

                Rename C:\Program Files\Citrix\ICAService\TwEncode.dll to TwEncode.bak.

                Copy Win32\TwEncode.dll from this package to C:\Program Files\Citrix\ICAService\.

·         For 64-bit Desktop OS:

                Rename C:\Program Files\Citrix\ICAService\TwEncode.dll to TwEncode.bak.

                Copy x64\TwEncode.dll from this package to C:\Program Files\Citrix\ICAService\.

·         For Server OS:

                Rename C:\Program Files (x86)\Citrix\System32\TwEncode.dll to TwEncode.bak.

                Copy x64\TwEncode.dll from this package to C:\Program Files (x86)\Citrix\System32\.

3.       Restart the VDA.

To uninstall this hotfix

Use the following steps to apply this hotfix:

1.       Log off all sessions running on the VDA.

2.       Perform the following steps according to the operating system of the VDA:

·         For 32-bit Desktop OS:

                Remove TwEncode.dll from C:\Program Files\Citrix\ICAService\.

Rename C:\Program Files\Citrix\ICAService\TwEncode.bak to TwEncode.dll.

·         For 64-bit Desktop OS:

                Remove TwEncode.dll from C:\Program Files\Citrix\ICAService\.

Rename C:\Program Files\Citrix\ICAService\TwEncode.bak to TwEncode.dll.

·         For Server OS:

                Remove TwEncode.dll from C:\Program Files (x86)\Citrix\System32\.

Rename C:\Program Files (x86)\Citrix\System32\TwEncode.bak to TwEncode.dll.

3.       Restart the VDA.

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