Horizon Client features have specific hardware and software requirements. Smart Card Authentication RequirementsClient devices that use a smart card for user authentication must meet certain requirements. Client Device Certificate Authentication RequirementsWith the client device certificate authentication feature, you can set up certificate authentication for client devices. Unified Access Gateway authenticates the client devices. Microsoft Certificate Services, with Active Directory, manages the creation and distribution of certificates to the client devices. After successful device authentication, the user must still perform user authentication. OPSWAT Integration RequirementsAt some companies, an administrator might integrate Unified Access Gateway with the third-party OPSWAT MetaAccess application. This integration, which is typically used on unmanaged devices in corporate bring-your-own-device (BYOD) environments, enables organizations to define device acceptance policies for Horizon Client devices. System Requirements for Real-Time Audio-VideoReal-Time Audio-Video works with standard webcam, USB audio, and analog audio devices. The feature also works with standard conferencing applications. To support Real-Time Audio-Video, your Horizon deployment must meet certain software and hardware requirements. System Requirements for Scanner RedirectionEnd users can scan information into their remote desktops and applications with scanners that are connected to their local client systems. To use this feature, the remote desktops and client computers must meet certain system requirements. System Requirements for Serial Port RedirectionWith the serial port redirection feature, end users can redirect locally connected serial (COM) ports, such as built-in RS232 ports or USB to Serial adapters, to their remote desktops and published applications. To support serial port redirection, your VMware Horizon deployment must meet certain software and hardware requirements. Requirements for Using URL Content RedirectionWith the URL Content Redirection feature, URL content can be redirected from the client machine to a remote desktop or published application (client-to-agent redirection), or from a remote desktop or published application to the client machine (agent-to-client redirection). System Requirements for HTML5 Multimedia RedirectionHorizon Agent and Horizon Client, and the remote desktops and client systems on which you install the agent and client software, must meet certain requirements to support the HTML5 Multimedia Redirection feature. System Requirements for Browser RedirectionThe remote desktops and client systems on which you install the agent and client software must meet certain requirements to support the Browser Redirection feature. System Requirements for Multimedia Redirection (MMR)With multimedia redirection (MMR), the multimedia stream is decoded on the client system. The client system plays the media content so that the load on the ESXi host is reduced. System Requirements for Geolocation RedirectionHorizon Agent and Horizon Client, and the virtual desktop or RDS host and client machine on which you install the agent and client software, must meet certain requirements to support the Geolocation Redirection feature. Requirements for the Session Collaboration FeatureWith the Session Collaboration feature, users can invite other users to join an existing remote desktop session. To support the Session Collaboration feature, your Horizon deployment must meet certain requirements. Parent topic: System Requirements and Setup for Windows-Based Clients