SharePoint Technologies
Windows SharePoint Services is available as a free download; it helps teams stay connected and productive by providing easy access to the people, documents, and information that they need to make well-informed decisions and get work done.
Miscoroft Office SharePoint Server 2007(MOSS) relies on the Windows SharePoint Services 3.0 technology to provide a consistent, familiar framework for lists and libraries, site administration, and site customization. Any features that are available in Windows SharePoint Services 3.0 are also available in Office SharePoint Server 2007.