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.

New hotfixes for XenApp Commands for Citrix XenApp 6.0 and 6.5

Citrix has released hotfix DSCXACmd650WX64001 for XenApp 6.5 and DSCXACmd600W2K8R2X64004 gfor XenApp 6.0.

Here you can find the fixes which come with these releases:

DSCXACmd600W2K8R2X64004 for XenApp 6.0

Hotfix DSCXAMx600W005 for Citrix XenApp 6.0 Delivery Services

New Fixes in This Release

Application enumeration fails for applications that use a 32-bit PNG icon for the application shortcut. To address this issue in its entirety, you must install both a XenApp and a Delivery Services Console hotfix that contains Fix #259922.

[From DSCXAMx600W005][#259922]

The Delivery Services Console might become unresponsive while deleting the renamed application.

[From DSCXAMx600W005][#LA1141]

Attempts to publish streamed applications can fail with just-in-time errors. The issue occurs with applications such as Corel PaintShop Pro that use fully transparent icons.

[From DSCXAMx600W005][#LA1468]

Installing and Uninstalling this Release


This release is packaged as a .zip file containing the replacement XenAppMx.msi file. For more information about deploying msi files, see Microsoft article 884016 or visit the Microsoft Web site and search on keyword msiexec.

To install this hotfix successfully, servers must not have registry modification restrictions in place.

This hotfix might or might not prompt you to restart the server when the installation or uninstallation is complete. You must restart the server for the installation to complete.

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:

Copy the file to a shared folder on the network.

Extract the compressed file and save the XenAppMx.msi file on the computer you want to update.

Run the .msi file.

Restart the computer.

To uninstall this hotfix:

From the Start menu, select Settings > Control Panel.

In Control Panel, double-click Add/Remove Programs.

Highlight the hotfix you want to uninstall and click Remove.

Follow the directions on-screen.


You can download this hotfix here.


Hotfix for Citrix XenApp 6.0 (Windows Server 2008 R2)

New Fixes in This Release

  1. When launching an application that is streamed to server and no ICA session exists, the IMA Service creates an extraneous two RAD*.tmp temporary files (for a total of three) at C:ProgramData. One of the files is passed to RadeRun and subsequently deleted by RadeRun. The other two files remain and accumulate over time. Only the one requisite file is created when launching a streamed to server application into an existing ICA session.[From XA600R01W2K8R2X64047][#LA0991]
  2. XenApp servers behind read-only domain controllers (RODCs) might experience slow application launch issues while winlogon.exe spikes CPU usage.[From XA600R01W2K8R2X64047][#LA1617]
  3. Clearing the “Allow connections made through Access Gateway Advanced Edition” option in the “Application Properties” of an application can prevent the Log Off or Disconnect buttons of that application from working. As a result, users cannot disconnect or close the application from the Web Interface.[From XA600R01W2K8R2X64047][#LA1670]
  4. Attempts to reconnect to a disconnected seamless session with LongCommandLine parameters can spawn an additional instance of the published application to be launched.[From XA600R01W2K8R2X64047][#LA1950] Continue reading “Hotfix for Citrix XenApp 6.0 (Windows Server 2008 R2)”

Citrix XenApp shadow failed with error code 120


Typically this would be caused by the end user having multi-monitors: http://support.citrix.com/article/CTX125693/

In this scenario, changes were made to the server, either by a removal of the farm, or a misconfiguration which causes a registry key to be deleted.


Caution: 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. Be sure to back up the registry before you edit it.

Complete the following steps to resolve the error:

  • On the non working server open reg key: HKLMSoftwareWow6432NodeCitrixInstall.
  • Look for a Binary entry called Setting. Note: If this entry is not present, shadowing will not work.
  • On a working server, open reg key: HKLMSoftwareWow6432NodeCitrixInstall.

Hotfix for Citrix Delivery Services Console for XenApp Group Policy Management

New Fixes in This Release

  1. This fix addresses various issues with published icons.

    [From DSCXAGPMx100WX64007][#LA0096, #253875, #259922, #LA1468]

Fixes from Replaced Hotfixes

  1. When HDX MediaStream for Flash (client-side) is enabled, a Flash content URL received by the server might a) not be resolvable by the client device or b) be resolved to the wrong content server. To resolve this issue:

    • On XenApp 5 for Windows Server 2003 and Windows Server 2008:
      Load the included HdxFlash-Server.adm template and configure the client-side content fetching base URL rewriting rules as follows, using PERL regular expression syntax:

    To rewrite

    http://www.content.corp.net/yyy.swf to http://corp.net/yyy.swf (or a similar URLs), use a rule such as:

    value name: http://(.*.)(corp.net.*)
    value: http://2

    [From DSCXAGPMx100WX64001][#233134]

  2. This enhancement reduces delays observed while editing printing policies and modifying their priorities.

Continue reading “Hotfix for Citrix Delivery Services Console for XenApp Group Policy Management”

Hotfix XA600W2K8R2X64114 for Citrix XenApp 6.0 for W2K8R2

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.
  • Caution! Installing this hotfix can inadvertently remove the Citrix Licensing component, if present, from the system. To prevent this issue, make sure to install Hotfix XA600W2K8R2X64060, available as Knowledge Center article CTX129224, before installing this and any subsequent hotfixes on systems running Citrix XenApp 6 for Windows Server 2008 R2. [#245185]
  • 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.
  • Installing this hotfix causes the ICA Session performance monitor counter to be removed. As a result, HDX Monitor for XenApp and some EdgeSight user session monitoring cannot find and report on that counter. To prevent this issue, make sure to install Hotfix XA600W2K8R2X64023 or its replacement before installing this and any subsequent hotfixes on systems running Citrix XenApp 6 for Windows Server 2008 R2. [#248473]
  • 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.

Continue reading “Hotfix XA600W2K8R2X64114 for Citrix XenApp 6.0 for W2K8R2”

LBDiag – XenApp 6 Load Balancing Diagnostic Tool

LBDiag is a utility for diagnosing load balancing in XenApp 6. LBDiag simulates the load balancing process for a user launching a specific application and provides a detailed report of the XenApp load balancing process. This simulation includes calculating load balancing policies, worker groups, server and application load evaluators, application installation, and multiple NIC support.



Continue reading “LBDiag – XenApp 6 Load Balancing Diagnostic Tool”