WordNet (r) 3.0 (2006):

Internet Explorer
    n 1: a commercial browser [syn: Internet Explorer, Explorer,
         IE]

The Free On-line Dictionary of Computing (30 December 2018):

Internet Explorer
IE
MSIE

    (IE, MSIE) Microsoft's free World-Wide
   Web browser for Microsoft Windows, Windows 95, Windows
   NT, and Macintosh.  Internet Explorer is the main rival to
   Netscape Navigator (which runs on many more platforms).
   Both support the same core features and offer incompatible
   extensions.

   Microsoft combined later versions of IE with their file
   system browser, "Explorer" and bundled it with Windows 95
   in an attempt to use their dominance of the desktop
   operating system market to force users to abandon Netscape's
   browser, which they perceived as a potential threat.  This,
   and other dubious business moves, became the subject of a US
   Department of Justice antitrust trial in late 1998/early 1999.

   (http://microsoft.com/ie/).

   (1999-01-31)