Internet Explorer 6

Internet Explorer 6 was introduced alongside Windows XP and was the longest running version of Internet Explorer until IE 7's release nearly 6 years later. IE 6 was notorious for it's assault on Web Standards and was the longtime baseline for the web. IE 6 lacked many common features such as transparent PNG. This version is the last version compatible with Windows NT 4.0, Windows 98, Windows 2000, and Windows ME. This version can also be unofficially installed on Windows 95 as well.