Internet Explorer 4.0 for Windows 3.1 and NT 3.51 is an open, integrated suite of Internet software that includes the an Internet client and basic collaboration solution for end , IT managers, and developers. Internet Explorer 4.0 expands on version 3.0 to achieve Microsoft's vision: complete integration of the Internet and the PC. Features include built-in webcasting features in Internet Explorer 4.0 give users the content they want--when they want it. Complete Communication and Collaboration. Internet Explorer 4.0 delivers a complete and integrated set of tools for every type of user, from basic services like e-mail to exciting conferencing, broadcasting, and Web-authoring capabilities.