After the server component of a plug-in is installed and registered with vCenter Server, its client component is available to vSphere clients. Client component installation and enablement are managed through the Plug-in Manager dialog box.
The Plug-in Manager lets you perform the following actions:
View available plug-ins that are not currently installed on the client.
View installed plug-ins.
Download and install available plug-ins.
Enable and disable installed plug-ins.