You can define USB policy settings for both Horizon Agent and Horizon Client. On connection, Horizon Client downloads the USB policy settings from Horizon Agent and uses them in conjunction with the Horizon Client USB policy settings to decide which devices it will allow to be available for redirection from the client computer.

The Horizon Agent Configuration ADMX template file or ADM template file contains policy settings related to the authentication and environmental components of Horizon Agent, including USB redirection. The ADMX template file is named (vdm_agent.admx). The ADM template file is named (vdm_agent.adm). The settings apply at the computer level. Horizon Agent preferentially reads the settings from the GPO at the computer level, and otherwise from the registry at HKLM\Software\Policies\VMware, Inc.\VMware VDM\Agent\USB

Note:

In Horizon 7 version 7.1, the ADM template files are deprecated and the ADMX template files are added.

Settings for Configuring USB Device Splitting

The following table describes each policy setting for splitting composite USB devices in the Horizon Agent Configuration ADMX or ADM template file. All of these settings are in the VMware View Agent Configuration > View USB Configuration > Client Downloadable only Settings folder in the Group Policy Management Editor. Horizon Agent does not enforce these settings. Horizon Agent passes the settings to Horizon Client for interpretation and enforcement according to whether you specify the merge (m) or override (o) modifier. Horizon Client uses the settings to decide whether to split composite USB devices into their component devices, and whether to exclude the component devices from being available for redirection. For a description of how Horizon applies the policies for splitting composite USB devices, see Configuring Device Splitting Policy Settings for Composite USB Devices.

Table 1. Horizon Agent Configuration Template: Device-Splitting Settings

Setting

Properties

Allow Auto Device Splitting

Property: AllowAutoDeviceSplitting

Allows the automatic splitting of composite USB devices.

The default value is undefined, which equates to false.

Exclude Vid/Pid Device from Split

Property: SplitExcludeVidPid

Excludes a composite USB device specified by vendor and product IDs from splitting. The format of the setting is {m|o}:vid-xxx1_pid-yyy2[;vid-xxx2_pid-yyy2]...

You must specify ID numbers in hexadecimal. You can use the wildcard character (*) in place of individual digits in an ID.

For example: o:vid-0781_pid-55**

The default value is undefined.

Split Vid/Pid Device

Property: SplitVidPid

Treats the components of a composite USB device specified by vendor and product IDs as separate devices. The format of the setting is

{m|o}:vid-xxxx_pid-yyyy(exintf:zz[;exintf:ww])

or

{m|o}:vid-xxxx_pid-yyyy(exintf:zz[;exintf:ww])

You can use the exintf keyword to exclude components from redirection by specifying their interface number. You must specify ID numbers in hexadecimal, and interface numbers in decimal including any leading zero. You can use the wildcard character (*) in place of individual digits in an ID.

For example: o:vid-0781_pid-554c(exintf:01;exintf:02)

Note:

View does not automatically include the components that you have not explicitly excluded. You must specify a filter policy such as Include Vid/Pid Device to include those components.

The default value is undefined.

Horizon Agent-Enforced USB Settings

The following table describes each agent-enforced policy setting for USB in the Horizon Agent Configuration ADMX or ADM template file. All of these settings are in the VMware View Agent Configuration > View USB Configuration folder in the Group Policy Management Editor. Horizon Agent uses the settings to decide if a USB device can be forwarded to the host machine. Horizon Agent also passes the settings to Horizon Client for interpretation and enforcement according to whether you specify the merge (m) or override (o) modifier. Horizon Client uses the settings to decide if a USB device is available for redirection. As Horizon Agent always enforces an agent-enforced policy setting that you specify, the effect might be to counteract the policy that you have set for Horizon Client. For a description of how View applies the policies for filtering USB devices, see Configuring Filter Policy Settings for USB Devices.

Table 2. Horizon Agent Configuration Template: Agent-Enforced Settings

Setting

Properties

Exclude All Devices

Property: ExcludeAllDevices

Excludes all USB devices from being forwarded. If set to true, you can use other policy settings to allow specific devices or families of devices to be forwarded. If set to false, you can use other policy settings to prevent specific devices or families of devices from being forwarded.

If set to true and passed to Horizon Client, this setting always overrides the setting on Horizon Client. You cannot use the merge (m) or override (o) modifier with this setting.

The default value is undefined, which equates to false.

Exclude Device Family

Property: ExcludeFamily

Excludes families of devices from being forwarded. The format of the setting is {m|o}:family_name_1[;family_name_2]...

For example: o:bluetooth;smart-card

If you have enabled automatic device splitting, View examines the device family of each interface of a composite USB device to decide which interfaces should be excluded. If you have disabled automatic device splitting, View examines the device family of the whole composite USB device.

The default value is undefined.

Exclude Vid/Pid Device

Property: ExcludeVidPid

Excludes devices with specified vendor and product IDs from being forwarded. The format of the setting is {m|o}:vid-xxx1_pid-yyy2[;vid-xxx2_pid-yyy2]...

You must specify ID numbers in hexadecimal. You can use the wildcard character (*) in place of individual digits in an ID.

For example: m:vid-0781_pid-****;vid-0561_pid-554c

The default value is undefined.

Include Device Family

Property: IncludeFamily

Includes families of devices that can be forwarded. The format of the setting is {m|o}:family_name_1[;family_name_2]...

For example: m:storage

The default value is undefined.

Include Vid/Pid Device

Property: IncludeVidPid

Includes devices with specified vendor and product IDs that can be forwarded. The format of the setting is {m|o}:vid-xxx1_pid-yyy2[;vid-xxx2_pid-yyy2]...

You must specify ID numbers in hexadecimal. You can use the wildcard character (*) in place of individual digits in an ID.

For example: o:vid-0561_pid-554c

The default value is undefined.

Client-Interpreted USB Settings

The following table describes each client-interpreted policy setting in the Horizon Agent Configuration ADMX or ADM template file. All of these settings are in the VMware View Agent Configuration > View USB Configuration > Client Downloadable only Settings folder in the Group Policy Management Editor. Horizon Agent does not enforce these settings. Horizon Agent passes the settings to Horizon Client for interpretation and enforcement. Horizon Client uses the settings to decide if a USB device is available for redirection.

Table 3. Horizon Agent Configuration Template: Client-Interpreted Settings

Setting

Properties

Allow Audio Input Devices

Property: AllowAudioIn

Allows audio input devices to be forwarded.

The default value is undefined, which equates to true.

Allow Audio Output Devices

Property: AllowAudioOut

Allows audio output devices to be forwarded.

The default value is undefined, which equates to false.

Allow HID-Bootable

Property: AllowHIDBootable

Allows input devices other than keyboards or mice that are available at boot time (also known as hid-bootable devices) to be forwarded.

The default value is undefined, which equates to true.

Allow Other Input Devices

Allows input devices other than hid-bootable devices or keyboards with integrated pointing devices to be forwarded.

The default value is undefined.

Allow Keyboard and Mouse Devices

Property: AllowKeyboardMouse

Allows keyboards with integrated pointing devices (such as a mouse, trackball, or touch pad) to be forwarded.

The default value is undefined, which equates to false.

Allow Smart Cards

Property: AllowSmartcard

Allows smart-card devices to be forwarded.

The default value is undefined, which equates to false.

Allow Video Devices

Property: AllowVideo

Allows video devices to be forwarded.

The default value is undefined, which equates to true.