• Lookout

Lookout is a free addin to Outlook that provides lightning-fast search for your e-mail, files, and desktop integrated with Microsoft Outlook™.

Built on top of a powerful search engine, Lookout is the only personal search engine that can search all of your e-mail from directly within Outlook - in seconds... Use Lookout to search, e-mail messages, contacts, calendar, notes, tasks, data from exchange, POP, IMAP, PST files, public folders, and files on your computer or other computers.