The scanner redirection group policy settings control the options that are available in the VMware Horizon Scanner Redirection Preferences dialog box on users' desktops and applications.
The scanner redirection ADMX template file contains both Computer Configuration and User Configuration policies. The User Configuration policies allow you to set different configurations for users of virtual desktops, published desktops, and published applications. Different User Configuration policies can take effect even when users' desktop sessions and applications are running on the same RDS hosts. All of the settings are in the folder in the Group Policy Management Editor.
| Setting | Computer | User | Description |
|---|---|---|---|
| BandwidthLimit | X | Specifies the maximum allowed bandwidth, in kilobytes per second, for transferring scanned data to a user session. If you specify 0 or no value, the bandwidth is unlimited. |
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| Compression | X | Specifies the image compression rate to use during the image transfer to a remote desktop or published application. You can select one of the following compression modes:
When you enable this setting, the selected compression mode is set for all users affected by this policy. Users can change the Compression option in the VMware Horizon Scanner Redirection Preferences dialog box, overriding the policy setting. When you disable this policy setting or do not configure it, JPEG compression mode is used. |
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| Default Color Mode | When this setting is enabled, you can configure the default color mode: black and white, grayscale, or color. This setting is supported on Windows XP Professional or Windows Server 2003 or later. | ||
| Default Duplex | When this setting is enabled, you can configure the default scanning mode: simplex or duplex. In duplex mode, the scanning application must support duplex scanning and request two pages from the scanner. This setting is supported on Windows XP Professional or Windows Server 2003 or later. | ||
| Default Scanner | X | X | Provides centralized management of scanner autoselection. You select scanner autoselection options separately for TWAIN and WIA scanners. You can select one of the following autoselection options:
When you enable this setting as a Computer Configuration policy, the setting determines the scanner autoselection mode for all users of the affected computers. Users cannot change the Default Scanner option in the VMware Horizon Scanner Redirection Preferences dialog box. When you enable this setting as a User Configuration policy, the setting determines the scanner autoselection mode for all affected users. However, users can change the Default Scanner option in the VMware Horizon Scanner Redirection Preferences dialog box. When you enable this setting in both Computer Configuration and User Configuration, the scanner autoselection mode in Computer Configuration overrides the corresponding policy setting in User Configuration for all users of the affected computers. When you disable this setting or do not configure it in either policy configuration, the scanner autoselection mode is determined by the corresponding policy setting (either User Configuration or Computer Configuration) or by user selection in the VMware Horizon Scanner Redirection Preferences dialog box. |
| Disable functionality | X | Disables the scanner redirection feature. When you enable this setting, scanners cannot be redirected and do not appear in the scanner menu on users' desktops and applications. When you disable this setting or do not configure it, scanner redirection works and scanners appear in the scanner menu. |
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| Force the TWAIN Scanning Properties dialog | X | When this setting is enabled, the TWAIN Scanning Properties dialog box is always displayed, even if a scanning application does not display the scanning dialog box. | |
| Hide Webcam | X | X | Prevents webcams from appearing in the scanner selection menu in the VMware Horizon Scanner Redirection Preferences dialog box. By default, webcams can be redirected to desktops and applications. Users can select webcams and use them as virtual scanners to capture images. When you enable this setting as a Computer Configuration policy, webcams are hidden from all users of the affected computers. Users cannot change the Hide Webcam option in the VMware Horizon Scanner Redirection Preferences dialog box. When you enable this setting as a User Configuration policy, webcams are hidden from all affected users. However, users can change the Hide Webcam option in the VMware Horizon Scanner Redirection Preferences dialog box. When you enable this setting in both Computer Configuration and User Configuration, the Hide Webcam setting in Computer Configuration overrides the corresponding policy setting in User Configuration for all users of the affected computers. When you disable this setting or do not configure it in either policy configuration, the Hide Webcam setting is determined by the corresponding policy setting (either User Configuration or Computer Configuration) or by user selection in the VMware Horizon Scanner Redirection Preferences dialog box. |
| Lock config | X | Locks the scanner redirection user interface and prevents users from changing configuration options on their desktops and applications. When you enable this setting, users cannot configure the options that are available from the tray menu on their desktops and applications. Users can display the VMware Horizon Scanner Redirection Preferences dialog box, but the options are inactive and cannot be changed. When you disable this setting or do not configure it, users can configure the options in the VMware Horizon Scanner Redirection Preferences dialog box. |
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| TWAIN Scanner Properties dialog location | X | Specifies where the TWAIN Scanning Properties dialog box appears. You can select one of the following options:
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