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Instant Messaging (IM) Clients for Exchange 2000 Server Instant Messaging Service and Live Communications Server

Updated: March 15, 2005

Depending on the operating system version and instant messaging (IM) server software that is used, there are a number of IM clients available to choose from. Please see below for a list of available clients.

Review the tables on this page to determine which instant messaging (IM) client is right for you based on your operating system and specific IM needs.

Client Computers Running

Windows 2000, Windows XP, and Windows Server 2003

If you need Instant Messaging…	You should deploy…
Within your corporation	Live Communications Server 2005 with Microsoft Office Communicator 2005 or Windows Messenger 5.1. Please note: Windows Messenger 5.1 can be used with Exchange 2000 Server Instant Messenger Service
Both within your corporation and with customers and partners outside your corporation	Live Communications Server 2005 with Microsoft Office Communicator 2005 or Windows Messenger 5.1, plus enterprise-to-enterprise federation and/or Public IM Connectivity service.

Windows 95, Windows 98, or Windows Millennium Edition

If you need Instant Messaging…	You should deploy…
Within your corporation	Live Communications Server 2005 with a partner Web Client solution, such as eDial or Exchange 2000 Server Instant Messaging Service with Exchange Instant Messaging Client 4.6 Note: Microsoft Office Communicator 2005 and Windows Messenger 5.1 are not available for operating systems prior to Windows 2000.
Both within your corporation and with customers and partners outside your corporation	Live Communications Server 2005 with a partner Web Client solution such as eDial, plus enterprise-to-enterprise federation and/or Public IM Connectivity service.

For More Information

To learn more about Microsoft's Real-Time Collaboration services, see:

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