I got chance to get myself introduced to ActiveX Script environment. Actually this is set of COM classes and interfaces through which we can make our C++ code and Script code (be it VBScript or JScript) work together.
Say you want to develop an application where you want your business logic code to be written in C++ and events to be exposed to the script. We can do this using ActiveX scripting. ActiveX scripting host is the application implementing methods and properties.
Good article about ActiveX Scripting is,