vCloud Director plug-ins extend the functions of the Service Provider Admin Portal and the vCloud Director Tenant Portal. You can upload, disable, and delete plug-ins from the Service Provider Admin Portal. You can publish a plug-in to the service provider and individual organizations.

Some plug-ins are installed as part of vCloud Director.

CPOM extension
Provides the capability for viewing and managing SDDCs and SDDC proxies by using the vCloud Director Tenant Portal.
Customize Portal
Provides the capability for customizing the vCloud Director Service Provider Admin Portal and the vCloud Director Tenant Portal.
vCloud Availability
The VMware vCloud ® Availability™ plug-in provides the capability to access vCloud Availability Portal directly from the vCloud Director user interface. For more information, see vCloud Availability Documentation.