Windows Messenger is a discontinued instant messaging client included in

Windows XP Windows XP is a major release of Microsoft's Windows NT operating system. It was released to manufacturing on August 24, 2001, and later to retail on October 25, 2001. It is a direct successor to Windows 2000 for high-end and business users a ...

. Designed for use by both corporate and home users, it was originally created, in 2001, as a streamlined and integrated version of

MSN Messenger MSN Messenger (also known colloquially simply as MSN), later rebranded as Windows Live Messenger, was a Cross-platform software, cross-platform instant messaging client, instant-messaging client developed by Microsoft. It connected to the now-di ...

. It was upgraded several times when it was made available for

Windows 2000 Windows 2000 is a major release of the Windows NT operating system developed by Microsoft, targeting the server and business markets. It is the direct successor to Windows NT 4.0, and was Software release life cycle#Release to manufacturing (RT ...

and

Windows Server 2003 Windows Server 2003, codenamed "Whistler Server", is the sixth major version of the Windows NT operating system produced by Microsoft and the first server version to be released under the Windows Server brand name. It is part of the Windows NT ...

. Since then, its development stopped. It was superseded by

Windows Live Messenger MSN Messenger (also known colloquially simply as MSN), later rebranded as Windows Live Messenger, was a Cross-platform software, cross-platform instant messaging client, instant-messaging client developed by Microsoft. It connected to the now-di ...

and Microsoft Lync.

Overview

Windows Messenger was introduced in

on October 22, 2001. It is enabled by default. Its features include

instant messaging Instant messaging (IM) technology is a type of synchronous computer-mediated communication involving the immediate ( real-time) transmission of messages between two or more parties over the Internet or another computer network. Originally involv ...

, presence awareness, support for

Session Initiation Protocol The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. SIP is used in Internet telephony, in private IP telepho ...

(SIP), file transfer, application sharing and

whiteboarding Whiteboarding when used in the context of computing, is the placement of shared files on an on-screen shared notebook or whiteboard. Videoconferencing and data conferencing software often lets documents as on a physical whiteboard. In hybri ...

. Later versions added "ink" support and integration with Microsoft Lync Server (formerly Microsoft Office Communications Server). Windows Messenger's user interface is devoid of the clutter seen in

. Winks, nudges, and custom emoticons are unavailable, and the main user interface more closely resembles the standard Windows XP

Luna Luna commonly refers to: * Earth's Moon, named "Luna" in Latin, Spanish and other languages * Luna (goddess) In Sabine and ancient Roman religion and myth, Luna is the divine embodiment of the Moon (Latin ''Lūna'' ). She is often presented as t ...

style. Windows Messenger integrates with

Microsoft Exchange Server Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft. It runs exclusively on Windows Server operating systems. The first version was called Exchange Server 4.0, to position it as the successor to the relat ...

Microsoft Outlook Microsoft Outlook is a personal information manager software system from Microsoft, available as a part of the Microsoft 365 software suites. Primarily popular as an email client for businesses, Outlook also includes functions such as Calendari ...

Outlook Express Outlook Express, formerly known as Microsoft Internet Mail and News, is a discontinued email and news client included with Internet Explorer versions 3.0 to 6.0. As such, it was bundled with several versions of Microsoft Windows, from Windows ...

Remote Assistance Quick Assist is a Microsoft Windows feature that allows a user to view or control a remote Windows computer over a network or the Internet to resolve issues without directly touching the unit. It is based on the Remote Desktop Protocol (RDP). It i ...

and

Windows Media Center Windows Media Center (WMC) is a discontinued digital video recorder and media player created by Microsoft. Media Center was first introduced to Windows in 2002 on Windows XP Media Center Edition (MCE). It was included in Home Premium and U ...

in Windows XP. Windows Messenger can communicate with the Exchange Server 2000's Instant Messaging Service and

Microsoft Messenger Service Messenger (formerly MSN Messenger Service, .NET Messenger Service and Windows Live Messenger Service) was an instant messaging and presence system developed by Microsoft in 1999 for use with its MSN Messenger software. It was used by instant m ...

. Interoperability with third-party software is exposed through a COM API called the ''Real Time Communications (RTC) Client API''. Development of Windows Messenger was halted after version 5.1 in favor of

and Microsoft Lync.

Overview

See also

References

Further reading