Windows Mail is not a component of Internet Explorer, unlike Outlook Express, which was bundled with Internet Explorer versions 4 to 6. As such, Windows Mail is not available for Windows operating systems prior to Vista, while Windows Internet Explorer 7 was made available for Windows XP. Windows Mail has been succeeded by Windows Live Mail, which was built by the same development team as Windows Mail and also serves as the replacement for Outlook Express for Windows XP. Windows Mail replaced Outlook Express, which came with previous Windows versions.