Includes Service Pack 1 Before installing, please ensure that any older versions of Internet Explorer have been removed from your system first. Internet Explorer 4.0 is an open, integrated suite of Internet software that includes the industry's premier Internet client and basic collaboration solution for end users, IT managers, and developers. Internet Explorer 4.0 expands on the innovation introduced in version 3.0 to achieve Microsoft's vision: complete integration of the Internet and the PC. The end result is a dramatically easier and more personalized way for people to get the most out of the Internet. Benefits: Internet Explorer 4.0 makes finding information on the Internet easy. 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. For further information about Microsoft's Internet Explorer, visit their website located at: http://www.microsoft.com