Windows SharePoint Services 3.0 General Reference
The General Reference section of the Windows SharePoint Services 3.0 Software Development Kit (SDK) describes the technologies that Windows SharePoint Services 3.0 provides for developers. It contains overview information and step-by-step, how-to procedures for programming with Windows SharePoint Services, as well as language references that contain information about the XML formats, protocols, and unmanaged APIs that are used within a deployment.
Windows SharePoint Services 3.0 serves as the platform for server applications such as Microsoft Office SharePoint Server 2007 or Microsoft Office Project Server 2007. For developer information about these server applications, see the Microsoft Office SharePoint Server 2007 SDK or the Microsoft Office Project 2007 SDK.