You can use Custom Install to upgrade vCenter Single Sign-On, vCenter Inventory Service, and vCenter Server separately to customize the location and configuration of the components.

These instructions upgrade vCenter Inventory Service only. You must install or upgrade vCenter Single Sign-On before upgrading Inventory Service and vCenter Server.

Note: vCenter Server 5.5 supports connection between vCenter Server and vCenter Server components by IP address only if the IP address is IPv4-compliant. To connect to a vCenter Server system in an IPv6 environment, you must use the fully qualified domain name (FQDN) or host name of the vCenter Server. The best practice is to use the FQDN, which works in all cases, instead of the IP address, which can change if assigned by DHCP.



  1. In the software installer directory, double-click the autorun.exe file to start the installer.
  2. Select vCenter Inventory Service and click Install.
  3. Follow the prompts in the installation wizard to choose the installer language, and agree to the end user patent and license agreements.
  4. If you are upgrading or reinstalling an existing instance of Inventory Service, choose whether to keep the existing database or replace it with a new empty database.
  5. Click Install.


Inventory Service is upgraded.