Internet Explorer in the Windows 95 Plus! Pack

When Windows 95 launched in August 1995, Microsoft introduced consumers to its very first web browser: Internet Explorer 1.0. Rather than shipping inside the standard retail edition of the operating system, the browser debuted as part of the Microsoft Plus! for Windows 95 companion pack. This article covers the origins of Internet Explorer, its release as part of the add-on pack, and its significance in launching Microsoft's presence on the consumer web.

Microsoft Plus! for Windows 95 was an optional add-on designed to enhance the capabilities of the operating system. Marketed to power users and multimedia enthusiasts, the pack included visual themes, screen savers, system maintenance utilities, and the "Internet Jumpstart Kit." The core of this kit was Internet Explorer 1.0, which gave users out-of-the-box tools to connect to Internet Service Providers and browse the World Wide Web.

Internet Explorer 1.0 was not built entirely from scratch. Microsoft licensed the source code from Spyglass Mosaic, an early commercial derivative of the pioneering NCSA Mosaic browser. Microsoft's team adapted the code to integrate directly with Windows 95 and its built-in TCP/IP networking stack. By modern standards, the software was minimal: it required just over one megabyte of storage space and provided basic text and image rendering, lacking support for tables, style sheets, or advanced web scripting.

Because standard retail copies of Windows 95 lacked a browser, most users at the time relied on third-party software, predominantly Netscape Navigator. Distributing Internet Explorer through the Microsoft Plus! pack allowed Microsoft to quickly deliver web capability to home computers without delaying the main Windows 95 launch.

The launch of Internet Explorer 1.0 set the stage for rapid iteration. Within months, Microsoft released updated versions as free downloads and eventually bundled the browser directly into future Windows 95 OEM service releases. This pivotal distribution strategy in the Plus! pack initiated the First Browser War and transformed how operating systems integrated internet connectivity.