ActiveX is the successor to OLE, and it's the technology that facilitates communication
between applications at the object level, enabling you to embed a Word document in an
Excel spreadsheet or to embed any of hundreds of kinds of objects in any ActiveX
application. ActiveX chapters include Chapters 13, "ActiveX Concepts," 14, "Building an
ActiveX Container Application," 15, "Building an ActiveX Server Application," 16,
"Building an Automation Server," and 17, "Building an ActiveX Control."