Internet Explorer will be officially launched as of Monday, March 14. With Internet Explorer 9, Microsoft has shifted the focus of the Web browser. The browser treats the Web like an extension of the PC desktop, and treats websites more like applications. With IE9, you can drag a tab out of Internet Explorer to view as a separate browser window. The Download Manager tracks the files you download from the Internet with your browser, and helps alert you when a file might be malicious. It requires Windows Vista (SP2 or later) or Windows 7–it will not work with Windows XP.”]
Source: https://www.csoonline.com/article/2127647/five-reasons-you-should-switch-to-ie9.html