Sitecore Legacy Connector Requirements
Coveo license for the Sitecore Legacy connector
Your Coveo license must include support for the Sitecore Legacy connector to be able to use this connector.
The Sitecore Legacy connector supports Sitecore version 5.3, and 6.0 to 6.5.
Install the Coveo web service on your Sitecore server (see Installing the Coveo Legacy Web Service Plugin for Sitecore).