The PCoIP ADMX template file (pcoip.admx) contains policy settings related to the PCoIP display protocol. You can configure settings to default values that can be overridden by an administrator, or you can configure settings to non-overridable values.

The ADMX files are available in VMware-Horizon-Extras-Bundle-YYMM-x.x.x-yyyyyyyy.zip, which you can download from the VMware Downloads site. Go to https://my.vmware.com/web/vmware/downloads. Look for Desktop & End-User Computing and under this category, select Download Product under VMware Horizon. Then select the appropriate Horizon version and click Go To Downloads. From here you can find the Horizon GPO Bundle that includes the VMware-Horizon-Extras-Bundle-YYMM-x.x.x-yyyyyyyy.zip file.

The PCoIP Session Variables ADMX template file contains two subcategories:

Overridable Administrator Defaults
Specifies PCoIP policy setting default values. These settings can be overridden by an administrator. These settings write registry keys values to HKLM\Software\Policies\Teradici\PCoIP\pcoip_admin_defaults. All of these settings are in the Computer Configuration > Policies > Administrative Templates > PCoIP Session Variables > Overridable Administrator Defaults folder in the Group Policy Management Editor.
Not Overridable Administrator Settings
Contains the same settings as Overridable Administrator Defaults, but these settings cannot be overridden by an administrator. These settings write registry key values to HKLM\Software\Policies\Teradici\PCoIP\pcoip_admin. All of these settings are in the User Configuration > Policies > Administrative Templates > PCoIP Session Variables > Not Overridable Administrator Settings folder in the Group Policy Management Editor.

The template contains both Computer Configuration and User Configuration settings.

Non-Policy Registry Keys

If a local machine setting needs to be applied and cannot be placed under HKLM\Software\Policies\Teradici, local machine settings can be placed in registry keys in HKLM\Software\Teradici. The same registry keys can be placed in HKLM\Software\Teradici as in HKLM\Software\Policies\Teradici. If the same registry key is present in both locations, the setting in HKLM\Software\Policies\Teradici overrides the local machine value.