The range of services offered by MSN has changed since its initial release in 1995. MSN was once a simple online service for Windows 95, an early experiment at interactive multimedia content on the Internet, and one of the most popular dial-up Internet service providers.

Microsoft used the MSN brand name to promote numerous popular web-based services in the late 1990s, most notably Hotmail and Messenger, before reorganizing many of them in 2005 under another brand name, Windows Live. MSN's Internet portal, MSN.com, still offers a wealth of content and is currently the 9th most visited domain name on the Internet.

The concept for MSN was created by the Advanced Technology Group at Microsoft, headed by Nathan Myhrvold. MSN was originally conceived as a dial-up online content provider like America Online, supplying proprietary content through an artificial folder-like interface integrated into Windows 95's Windows Explorer file management program. Categories on MSN appeared like folders in the file system.

Then officially known as 'The Microsoft Network,' the service launched along with Windows 95 on August 24, 1995. MSN was included with Windows 95 installations and promoted through Windows and other Microsoft software released at the time. Product support and discussion was offered through the MSN service, as well as information such as news and weather, basic e-mail capabilities, chat rooms, and message boards similar to newsgroups.

Open access to the World Wide Web was not originally included in the classic MSN service at the time of its initial launch, but Internet access was quickly offered through Microsoft's Internet Explorer web browser, which was available as a download from the MSN service or as part of the Windows 95 Plus! package.

In 1996, in response to the increasing relevancy and rapid growth of the Internet, Microsoft renamed its existing MSN service to 'MSN Classic' and created a new version, called 'MSN 2.0,' which combined access to the Internet with web-based multimedia content in a new program known as the 'MSN Program Viewer.' The service was promoted to existing MSN subscribers beginning October 10, 1996; the general release followed on December 10, 1996.

Microsoft promoted MSN 2.0 with a series of advertisements and promotional materials describing the service with the phrase, "Every new universe begins with a big bang." The company offered the initial release of the new MSN 2.0 service on a CD-ROM that it sent to MSN subscribers in the fall of 1996. When inserted, the CD-ROM opened to the ambitious and flashy 'MSN Preview,' an interactive video-based experience that introduced current and prospective subscribers to the new version of MSN and described the features of the MSN 2.0 software.

The MSN Preview was formatted as a guided tour of a mock premiere event for the new MSN. It was hosted by a witty and sarcastic character named 'Michael' who welcomed viewers outside of a theatre and then guided them through the theatre to meet several other characters, each of whom represented one of the channels of MSN 2.0's 'On Stage' area, which was designed as the main platform for interactive multimedia content in MSN 2.0.

A handful of uncredited actors appeared in the MSN Preview, including then-unknown actress Anna Faris, who represented 'Channel 5,' which was described as "media, zines, attitude"; it was targeted at college-age members. The preview also included its own jazz and pop music loop that played during the installation process.

Once installed, members accessed MSN content through the MSN Program Viewer, which was essentially an animated, stylized and streamlined interface on top of an Internet Explorer 3.0 web browser. When members signed in, they would be presented with a several different 'Channels,' which were essentially categories for the various types of content available on MSN. These channels included new services such as msnbc.com, a news web site that began as a partnership between Microsoft and NBC; and Slate, an online magazine focused on politics and current events; both were available to all Internet users, and both are still active, many years later.