View Agent Direct-Connection (VADC) Plug-In is installed on machines where Horizon 7 Agent is already installed. For a list of operating systems that Horizon 7 Agent supports, see "Supported Operating Systems for Horizon Agent" in the Horizon 7 Installation document.
VADC Plug-In has the following additional requirements:
The virtual or physical machine that has VADC Plug-In installed must have a minimum of 128 MB of video RAM for PCoIP to function properly.
For a virtual machine, you must install VMware Tools before you install Horizon 7 Agent.
A virtual machine-based desktop that supports VADC can be joined to a Microsoft Active Directory domain, or it can be a member of a workgroup.