Horizon Agent Direct-Connection Plug-In (formerly View Agent Direct-Connection Plug-In) supports HTML Access to virtual machine-based desktops and published desktops and applications. What to read next Windows - Set Up the Desktop for HTML AccessTo support HTML Access, you must install Horizon Agent on the Windows virtual machine-based desktop with a special parameter. If the HTML Access client needs to be served by the desktop, you must also set up static content delivery that enables users to point a browser directly at the desktop. Linux - Set Up the Desktop for HTML AccessTo support HTML Access, you must install Apache Tomcat, the nginx package, and the HTML Access warball on the Linux-based desktop. Follow the procedure described in this article for your Linux distribution. Windows - Set Up Trusted CA-Signed TLS Server CertificateYou can set up trusted CA-Signed TLS server certificate to ensure that traffic between clients and desktops is not fraudulent. Windows - Deactivate HTTP/2 Protocol on Windows 10 and Windows 2016 DesktopsWith some web browsers, you might encounter the error ERR_SPDY_PROTOCOL_ERROR when accessing a Windows 10 Horizon Agent Direct-Connection Plug-In (formerly View Agent Direct-Connection Plug-In) or Windows 2016 Horizon Agent Direct-Connection Plug-In desktop. You can prevent this error by deactivating the HTTP/2 protocol on the desktop.