If you are implementing FSA but not Exchange Server archiving, you do not need to install Outlook on the Enterprise Vault server. However, if you need to access files that have been archived using a previous version of Enterprise Vault, then Outlook is still required on the Enterprise Vault server.

An Enterprise Vault Storage service is required on the Enterprise Vault server that hosts FSA.

Internet Explorer 6.0 or later is required on the Enterprise Vault server computer that is to host FSA.