The Microsoft Outlook family of messaging and collaboration clients is based on the recognition that home and business users have different needs. The Outlook family of clients is optimized for these two distinct market segments: Home users who need easy and reliable Internet, e-mail, and newsgroup functionality & Business users who require reliability and ease of use, but who also need more e-mail functionality and tight integration between e-mail and tools for information management and collaboration.
Outlook Express is the e-mail client that is included with Microsoft Internet Explorer 4.x, Microsoft Internet Explorer 5.x, the Microsoft Windows 98 operating system, the Microsoft Windows Millennium Edition (Me) operating system, the Microsoft Windows 2000 operating systems, and Microsoft Office 98 for the Macintosh. Outlook Express is designed for home users who gain access to their e-mail messages by dialing in to an Internet service provider (ISP).
Outlook is Microsoft’s premier messaging and collaboration client. It is a stand-alone application that is integrated into Microsoft Office and Exchange Server. Outlook also provides performance and integration with Internet Explorer 5.5. Complete integration of e-mail, calendaring, and contact management, makes Outlook the perfect client for many business users.
Choose Outlook Express if:
- You require only Internet e-mail and newsgroup functionality (for versions of Windows later than Microsoft Windows 95, versions of Windows earlier than Microsoft Windows 95, Macintosh, and UNIX platforms).
- You use or plan to use Office 98 for Macintosh, and you want to take advantage of the integration of Outlook Express with this version of the Office suite.
Choose Outlook if:
- You require advanced Internet standards-based e-mail and discussion group functionality.
- You require integrated personal calendars, group scheduling, task, and contact management.
- You require integrated e-mail and calendaring, cross-platform clients for versions of Windows later than Microsoft Windows 95, versions of Windows earlier than Microsoft Windows 95, and Macintosh platforms.
- You use, or plan to use Office 97, Office 2000, Office XP or Exchange Server and want to take advantage of the integration of Outlook with this version of the Office suite, and the integration with Exchange Server.
- You require robust, integrated run-time and design-time collaboration capabilities.
Outlook Express is an email client from Microsoft that shipped with Windows XP and Windows 2000. For Windows XP, Windows Vista and Windows 7, you may want to install Windows Live Mail instead.
Sourced from : Microsoft KB257824.