REDMOND, Wash. — July 16, 2004 — MSN® today announced that it has acquired Lookout Software LLC, bringing additional technology and expertise to future search efforts by MSN. Lookout offers the critically acclaimed Lookout personal search tool for the Microsoft® Office Outlook® 2003 messaging and collaboration client, which provides fast searching for e-mail, files and desktop data within Outlook. This investment builds on several significant product improvements and milestones reached by the MSN Search team recently, including changes to MSN Search that increase the relevancy of many results by up to 45 percent.