From the developer: "The SPSS Component package contains five components: SPSSApplication, SPSS_CS_Application, SPSSServer, SPSSServers and SPSSDatafile. The former four components are SPSS components for accessing the functionality of SPSS (SPSS program required). The latter component -SPSSDatafile- is a complete new solution for accessing SPSS datafiles. Even a novice can use this component by just dragging it on a form and access it using its properties and methods."