Some of the old software before 2010 may not be able to install/run normally on x64 or Windows 10 systems. Be aware of it before purchasing it.
Microsoft Office Live Communications Server 2003 is a manageable and extensible instant messaging server (IMS) that provides a real-time collaboration solution. It enables corporations to reach, collaborate, and respond to information more quickly as compared to telephones and e-mail.
Windows Messenger 5.x is the only client application that is used with Live Communications Server (LCS).
System Requirements• Windows Server 2003, Standard/Enterprise/Datacenter Edition
• Only Support SQL Server 2000
• Active Directory (Windows 2000 or Windows Server 2003)
• Public key infrastructure (PKI)