Citrix Hotfix Rollup Pack 2 BETA for XenApp 6.5

Citrix  has released the Beta release of Hotfix Rollup Pack 2 for Citrix XenApp 6.5 for Microsoft Windows Server 2008 R2. During your evaluation of this product, we invite you to provide feedback, ask questions, and report problems by sending an email to Include any supporting files, such as MSI logs, memory dumps, or screen captures, that may assist us in troubleshooting any issues you may encounter. When testing, we encourage you to mimic your production environment as closely as possible.

Important: While this prerelease version has reached an acceptable level of quality and stability, it is still undergoing testing. Do not apply this prerelease to any live production servers or any servers connected to the production database. The contents of this prerelease are preliminary – Citrix reserves the right to omit fixes contained herein and to include additional fixes in the official, final release.

Uninstalling and upgrading from this prerelease is not supported. Citrix recommends that you rebuild your server before installing the final release and/or before upgrading to the next version of XenApp. This prerelease will not be supported once the official version is released. Continue reading “Citrix Hotfix Rollup Pack 2 BETA for XenApp 6.5”

XenApp 6.5 servers reboot when not part of a reboot policy

XenApp 6.5 servers are rebooting and they are not attached to a reboot policy. Servers may reboot when a reboot policy is created, but there are no servers assigned to the policy. The following entry in the eventlogs are written.

Continue reading “XenApp 6.5 servers reboot when not part of a reboot policy”

Personal vDisk 5.6.13 released

Citrix has released a new version of the Personal vDisk. Version 5.6.13 has the following new features:

Personal vDisk v5.6.13 is the latest release which includes a redesigned filter driver that improves overall application compatibility. PvD no longer requires an assigned drive letter for the app space (currently the V: drive) and offers dynamic free space balance between the apps and profile space on the user’s personal vDisk. This release contains the reduction in the PvD generated CPU overhead by 44%.

Review the Citrix Personal vDisk Administrator’s Guide. This document contains information on the release, system requirements, and install instructions. For more configuration details, please refer to Citrix eDocs.

You can download this new version here at the Citrix downloads section (a valid My CitrixID is required).

XenApp Connector for System Center 2012 Configuration Manager

The XenApp Connector for System Center 2012 Configuration Manager enables administrators to orchestrate the tasks required to deliver applications both to end-users and XenApp Servers seamlessly with Microsoft System Center 2012 (and SP1).

With the XenApp Connector, administrators can:

  • Extend the Configuration Manager 2012 user-centric and rules-based application delivery capabilities to deliver applications to users in the most appropriate manner for the device they are using: MSI, App-V, CAB, or XenApp
  • Enable user self-service of XenApp hosted applications from both Receiver and the System Center Application Catalog
  • Orchestrate the process of deploying applications to XenApp servers, farms, and worker groups from within the Configuration Manager console, both directly, for traditionally managed farms, as well as for streamed farms when used in conjunction with Provisioning Services Continue reading “XenApp Connector for System Center 2012 Configuration Manager”

Overview of often overlooked or misconfigured settings to improve graphics performance

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”

Unable to logoff XA 6.5: ICA session displaying “Waiting for System Event Notification Service”

Users cannot log off from a XenApp 6.5 ICA session and the “Waiting for System Event Notification Service” pop-up is displayed.


  • Windows Server 2008 R2
  • Citrix XenApp 6.5
  • Office Communicator 2007 R2


The screen remains unresponsive with the “Waiting for System Event Notification Service” pop-up. On the server user has a Communicator (OCS) running and one of the instances is pegging an entire core resulting in users unable to log off sessions.


As a workaround you can do the following: To log off successfully from the unresponsive sessions, terminate the pegged OCS process.  For a permanent solution you need to apply this fix from Microsoft Cumulative update package for Office Communicator 2007 R2: December 2012.

Original post at the Citrix knowledgebase.

Printing Fails after Universal Print Server installation

After installing and configuring the Universal Print Server (UPS) on an established, functioning print server, all session and auto-created printers using UPS failed to print. Attempting to print directly to the same print spooler objects outside of Citrix network continue to function normally.

One of the following errors is displayed:

“Error: Page too small to print. Try printing using smaller font.”


“An internal error occurred”

Printing a test page from the printer properties displays the following error: Continue reading “Printing Fails after Universal Print Server installation”

Hotfix XA600R01W2K8R2X64066 for Citrix XenApp 6.0

Citrix has released a new hotfix for XenApp 6.0 for Windows 2008 R2. This fix contains the following fixes.

New Fixes in This Release

  1. When updating a file located on a drive mapped outside of the session, the modified size of the file is not updated while using the GetFileSize () function in the session.

    [From XA600R01W2K8R2X64066]<cat_session_connection>[#LA2067]

  2. Servers can experience a fatal exception on picadm.sys with bugcheck code 0x20.

    [From XA600R01W2K8R2X64066]<cat_system_exceptions>[#LA2118]

  3. Servers might experience a fatal exception, displaying a blue screen, on picadm.sys with stop code 0x7E. Continue reading “Hotfix XA600R01W2K8R2X64066 for Citrix XenApp 6.0”

Differences in Client Drive Mapping between XenApp 6.0 and 6.5, Presentation Server 4.5, and XenApp 5.0

This article describes the difference between earlier versions of Client Drive Mapping (CDM) and the version in Citrix XenApp 6.0 and 6.5.


Versions prior Citrix XenApp 6.0, use the method of network mapping the local drive of the user. This method only mapped local drivers, not network drivers of the user machine. For users to be able to add network driver mappings they require a script to use the net use command and locate the drives from \CLIENT. With this method, the administrator is also required to create a log off script to delete these drives when the session is logged off. On XenApp 6.0, the CDM system uses a completely different mechanism; it uses the concept of redirection; the same concept used with Microsoft Remote Desktop connections.

Simple things to know about the client drive redirection:

  • Mapped drives are classified inside the session as Network Drives; redirected drivers have no specific Windows category so they are classified as Others.

Citrix XenApp Hotfix Log Creator

Citrix has released a new tool to verify what hotfixes are installed on your XenApp server.

The XenApp Hotfix Log Creator is a simple command base executable that can be used to provide a quick log with all the hotfix information of a Citrix XenApp 6.0 or 6.5. Very simple to use and if combine with tools like psexec.exe it can be used to capture the same information remotely. Continue reading “Citrix XenApp Hotfix Log Creator”