Lookeen is a search add-in for Microsoft Outlook that can speed up searches dramatically, allowing you to quickly locate emails, contacts, appointments, attachments and other Outlook items, as well as local files on your PC. The program indexes the selected Outlook folders on a regular schedule, allowing for almost instant results from your keyword searches. Lookeen integrates with your Outlook toolbar and also provides quick access buttons to locate new mail items from the current day or week as well as items that are related to the currently selected email. Other features include support for multiple PST files, customizable background indexing and more.