The VMware Enhanced Authentication Plug-in provides Integrated Windows Authentication and Windows-based smart card functionality.
In the vSphere 6.5 release, the VMware Enhanced Authentication Plug-in replaced the Client Integration Plug-in from vSphere 6.0 releases and earlier. The Enhanced Authentication Plug-in provides Integrated Windows Authentication and Windows-based smart card functionality. These are the only two features carried over from the previous Client Integration Plug-in. The Enhanced Authentication Plug-in can function seamlessly if you already have the Client Integration Plug-in installed on your system from vSphere 6.0 or earlier. There are no conflicts if both plug-ins are installed.
Install the plug-in only once to enable all the functionality the plug-in delivers.
For information about supported browsers and operating systems, see the vCenter Server Installation and Setup documentation.