XenApp and XenDesktop support 2 versions of Flash. The native version (v1) and the new version (v2). The newer versions of XenApp and XenDesktop support both but in combination with some type of Citrix ICA client/Receiver versions it can revert back to the older version.
This is an overview of the used version of Flash support each product uses with a certain client. Continue reading “HDX MediaStream for Flash Generations”
Citrix has released a new version of the HDX RealTime Optimization Pack for Microsoft® Lync®. This offers clear, crisp high-definition video calls in conjunction with Microsoft Lync 2010 by leveraging the user device for local media processing. The Optimization Pack consists of the HDX RealTime Connector for Lync which connects to the Microsoft Lync 2010 client on XenDesktop or XenApp or VDI-in-a-Box, and the HDX RealTime Media Engine which runs on the user device as a plug-in to the Citrix Receiver. The HDX RealTime Media Engine is available for Windows, Linux and Mac devices. Version 1.3 of the Optimization Pack adds two additional authentication methods, TLS-DSK and Kerberos, plus Microsoft® Outlook/Office integration.
Throughout the life of XenApp and XenDesktop, the combination of many factors such as the architecture of the base operating system, graphics device drivers and network bandwidth have been a determining factor in the overall end-user experience from a graphics quality standpoint. Citrix’s HDX protocol has made many enhancements in this area using such technologies as advanced compression methods and features such as Progressive Display and Adaptive Display. In addition, many HDX features (for example HDX MediaStream, HDX RichGraphics, HDX Optimization Pack for Google Earth) are provided to enhance the experience with certain types of content by offloading certain processes onto the client endpoint when possible.
However, because of limitations in current technologies, many Citrix environments do hit certain points where customers must make some amount of trade-off between end user-experience and session performance. The most prevalent example of this is improving session performance over lower bandwidth/WAN connections by reducing graphics quality using image compression. As Citrix continues to make further innovations in this area, there are some features added within the existing product versions that are often overlooked or misconfigured that can greatly improve current graphics related performance in certain environments. For example, some settings within an environment can be tweaked to try and avoid screen refresh issues sometimes seen with certain types of applications, or with scrolling issues that have also been reported amongst customers in the past. This article serves to point out some of these overlooked or misconfigured settings. Continue reading “Overview of often overlooked or misconfigured settings to improve graphics performance”
HDX Monitor 3.0 is a helpful monitoring and diagnostic tool for HDX components.
HDX Monitor 3.0 tool provides detailed information about the various HDX technologies, their performance, and diagnostics information. The following are the HDX technologies covered by this tool:
- Thinwire (Graphics)
- Direct 3D (Graphics)
- Media Stream (aka RAVE)
- USB Devices
- Mapped Client Drives (CDM)
- Branch Repeater
- Smart Card
- XenApp 6.5 or greater or XenDesktop 5.5 or greater.
- This tool may be installed on any machine on the same domain as the target system including the XenDesktop VDA or XenApp Server.
Download the tool here.
Internet Explorer becomes unresponsive when accessing a Flash enabled website from a XenDesktop provisioned Virtual Machine on a Windows 7 endpoint. Windows Application Event log on endpoint shows Event 56, ‘Server-side Flash rendering will be used if available’:
Continue reading “Internet Explorer becomes unresponsive on provisioned Virtual Machine”
Citrix has released a new hotfix for HDX Mediastream for XenApp versions 4.5, 5.0 and 6.0 running a 64 bit OS.
Prereqs for installing this patch are:
- XenApp 6 or,
- XenApp 5 with Feature Pack 3 for Windows Server 2008, including HDX User Experience Enhancement or,
- XenApp 5 with Feature Pack 2 for Windows Server 2003, including the HDX MediaStream for Flash feature or,
- Presentation Server 4.5 with Feature Pack 2, including the HDX MediaStream for Flash feature
This hotfix replaces the following hotfixes:
Citrix has released today a hotfix for HDX MediaStream.
New Fixes in This Release
- With HDX Mediastream for Flash enabled, Web sites with Flash content can experience delays of up to 10 seconds to load.
- Microsoft Internet Explorer might exit unexpectedly, referencing pseudoserverinproc2.dll, with certain types of Flash content on Web pages.
- With Adobe Flash Player ActiveX 11.3 installed on the endpoint device, Flash content cannot be redirected to be rendered on the client; instead, the content is rendered on the server.
To enable this fix in its entirety, you must install both a client hotfix that contains Fix #LA2283, and
- For XenApp: an HDX Flash hotfix that contains Fix #LA2283
- For XenDesktop: a Virtual Desktop Agent hotfix that contains Fix #LA2283
- With Adobe Flash Player ActiveX 11.4 installed on the endpoint device, Flash content cannot be redirected to be rendered on the client; instead, the content is rendered on the server.
To enable this fix in its entirety, you must install both a client hotfix that contains Fix #LA2565, and
- For XenApp: an HDX Flash hotfix that contains Fix #LA2565
- For XenDesktop: a Virtual Desktop Agent hotfix that contains Fix #LA2565
You can download the hotfix here.
This article describes how to deploy, configure, and confirm functionality of Server-Side Content Fetching (SSCF) in HDX MediaStream for Flash.
Server Side: Adobe Flash Player 10 or later Internet Explorer 7 or later HDX Capable Virtual Desktop Agent 4 or later, or XenApp Server (HDX MediaStream for Flash 1.1.0+)
Client Side: Adobe Flash Player 10 or later Internet Explorer 7 or later Online Plug-in 11.2.2 or later
HDX MediaStream for Flash provides the ability to fetch and render Flash content on the endpoint, thereby reducing server load, and optimizing the end-user experience. There are some cases when the default client-side content fetching is not desirable, or functional. For example, the content might be referenced by the Flash Player using a network address that is internal to an organization (for example: http://mycorporation/video.swf).
Such a URL can only be resolved on the server, and server-side content fetching must be used. Perhaps the most common use case requiring HDX MediaStream for Flash server-side content fetching is an organization that restricts the network connectivity of their ICA client devices so that they can communicate only with their XenApp or XenDesktop servers. Such an organization would configure HDX MediaStream for Flash to use server-side content fetching for all Web sites.
Server-side content fetching is the exception and can be configured on a per-URL basis using a server-side configuration setting. In addition, server-side content fetching must be enabled on the client. Continue reading “How to enable Server-Side content fetching in HDX MediaStream for Flash”
New Fixes in This Release
HDX MediaStream Flash redirection does not work for any site when the "Flash URL compatibility list" policy is enabled and a site is added to the list – regardless whether it specified to render on the server, on the client, or to be blocked.
Fixes from Replaced Hotfixes
At times of heavy logon/logoff activity, one or more of the following can be observed:
- Applications can exit unexpectedly.
- During logon attempts, an Error 1030 appears on the endpoint.
- During logoff attempts, the Virtual Desktop Agent returns to the Logon screen and the endpoint continues to display the Desktop Viewer.
Accessing certain Web sites with Internet Explorer and HDX MediaStream for Flash enabled can cause the Web page to become unresponsive, displaying only a cyan background.
Continue reading “HDX MediaStream hotfix for Citrix XenApp 6.5”
Here’s a list of the video’s of Citrix Synergy 2012 in San Francisco that I like the most. More videos will follow for sure this week. Watch this post closely the coming week .
What’s new in HDX (Syn121)
Citrix HDX technologies deliver the richest native desktop and application performance for virtual environments. Find out how new HDX capabilities strengthen a virtual infrastructure and address end-user capabilities. They also increase the ways in which an enterprise can use virtualization to meet user needs. Continue reading “Citrix Synergy 2012 San Francisco best vids”