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Live Communications Server 2005 Service Pack 1 for Standard and Enterprise Editions

Microsoft Office Live Communications Server 2005 with SP1 further improves business efficiencies by enabling information workers to communicate and share presence information with contacts in real time, through a security enhanced, enterprise-grade, integrated environment.

Overview

Live Communications Server 2005 SP1 improves on the features of Live Communications Server 2005 by extending the federation model, enhancing functionality, increasing security, and improving performance and infrastructure support. These improvements include:

• Tools to enable Public IM Connectivity; the ability to add contacts, send instant messages, and share presence information with users of the three main public IM service providers MSN, AOL and Yahoo!.
• Enhanced federation, which uses DNS-SRV resolution to simplify connecting to federation partners.
• New optional spim filters for better control of unsolicited instant messages.
• Support Microsoft Office Communicator 2005.
• Support for multiple tree Active Directory forests.
• Improved server API performance.

You can get specific information about this update in the Microsoft Knowledge Base article (897690): Description of Live Communications Server 2005 Service Pack 1.

Live Communications Server 2005 SP1 is available in two editions: Standard Edition and Enterprise Edition.

Live Communications Server 2005 SP1 for Standard Edition
Downloadable file name: LCS2005_SE_SP1_Upgrade.exe.

Consists of single, stand alone IM and presence server together on the same computer with an MSDE (Microsoft Desktop Engine) database for storing user data. It supports up to 15,000 concurrent users and is the appropriate choice in small deployments where enterprise-level capacity, availability and performance are not required.

Live Communications Server 2005 SP1 for Enterprise Edition
Downloadable file name: LCS2005_EE_SP1_Upgrade.exe.

Consists of a pool of servers connected to a separate, shared SQL Server database that supports up to 100,000 users. This two-tier architecture, delivers substantial improvements in availability, scalability, and performance than the Standard Edition.


Note:

• This upgrade is only for the English version of Live Communications Server 2005 Enterprise or Standard Editions.
• This service pack will not support the upgrading of MSDN versions of Live Communications Server 2005 Enterprise or Standard Editions.
• In order to update to Live Communications Server 2005 with SP1, you must update all servers within your Live Communications Server 2005 topology.
• Public IM Connectivity requires a per-user; per-month subscription license that is in addition to the Live Communication Server Client Access License (CAL).

System Requirements

·         Supported Operating Systems: Windows Server 2003

• This service pack requires the following program:
  Fully licensed version of Microsoft Office Live Communications Server 2005 Enterprise or Standard Edition.
• Client Software Requirements:
  While Windows Messenger 5.1 supports basic presence and IM scenarios, the recommended client for Live Communications Server 2005 and public IM connectivity is Microsoft Office Communicator 2005. For more information, visit http://www.microsoft.com/office/livecomm/prodinfo/default.mspx