Administrator Guide

3. Click Printing > Drivers and set the Universal print driver usage to Use universal printing only from the drop-down

menu available.

4. To enable the printer policy in Citrix Virtual Apps and Desktops 7.5 and later versions, do the following:

a. Go to the Citrix DDC server,

1. Click Citrix studio > policies and add a policy. Enable the Auto-create generic universal printer option.

2. Set the Universal print driver usage to Use universal printing only from the drop-down menu.

b. Check registry and make sure the same driver has been installed.

1. Check the drivers in registry of the server or desktop which you want to connect. The server or desktop must have ps, pcl5,

pcl4 drivers in the registry and the same driver must be installed on the server or desktop.

Go to HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\UniversalPrintDrivers\. ThinOS does not support EMF and

XPS.

NOTE: The supported drivers in the following table are one of the supported drivers for Citrix UPD used in

ThinOS. One of the recommended driver is provided here as an example.

The supported drivers are listed in the following table:

Table 15. Supported drivers

Printer class Printer driver

PS HP Color LaserJet 2800 Series PS

PCL5 HP LaserJet 2200 Series PCL 5

PCL4 HP LaserJet Series II

c. If the server or desktop which you want to connect does not have these drivers, follow the steps mentioned here:

1. For example, in Citrix Virtual Apps 6.5 for Windows Server 2008 R2, add PCL driver in Server. Go to Device and Printers >

Select any printer > Click Printer server properties > Driver tab and then add HP LaserJet 2200 Series PCL 5 driver.

2. Under HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\UniversalPrintDrivers\PCL5c\, change DriverAlias and

DriverName HP LaserJet 2200 Series PCL 5.

Flash Redirection

The Flash Redirection solution is to off-load flash content to the ThinOS client, and locally render and decode the flash playback. The off-

loading is conducted by Citrix HDX Flash Redirection. The local rendering and decoding process are conducted by customized flash player

and other multimedia process that runs locally on ThinOS.

Supported Environment—Supports only Citrix connections with Citrix Apps 6.5 and later versions and Citrix Apps and Desktops 7.0 and

later versions.

Required packages

User must install the FR.i386.pkg package for the feature to work:

Installation of packages

To install the required packages, follow the steps mentioned here:

1. Upload packages to directory \wnos\pkg\.

2. Ensure that the INI autoload is not set to 0. Set INI AutoLoad=1 AddPkg=FR in wnos.ini.

3. Restart the client to read the file server and wait till the auto installation of packages is complete.

You can view the installed packages in the Packages tab in the System Tools dialog box.

4. Server configuration for Flash redirection

a) To ignore the differences in flash player versions, user must add the FlashPlayerVersionComparisonMask and

ClientFlashPlayerVersionMinimum registry key on the desktop.

If it is Citrix Virtual Apps 6.5, IEBrowserMaximumMajorVersion registry key is required to ignore the differences in IE

Browser versions.

For more information, see docs.citrix.com/en-us/xenapp-and-xendesktop/7-9/hdx/flash-redirection.html.

From Citrix Virtual Apps and Desktops 7.9, you must add more entries in registry for HDX FR to work. For information about these

additional entries, refer to Citrix Technical documents.

Configuring the connection brokers