Avant Browser which is available in 41 languages runs on Windows 98 and above, including Windows Vista. Internet Explorer version 6 or 7 must be installed. It has some of the most advanced features. It consists of user-customizable tabbed interface; Progress bar on each tab which is optional; an array of tab locking, duplication, and drop-and-drag arrangement. It can automatically save and reopen several numbers of pages and is capable to restore open pages after system crash. You can choose undo menu for last 25 closed tabs. The system of opening pages in single process reduces resource demands. It offers multiple home pages. It is compatible with many IE toolbars and add-ins, including Google toolbar, highlights marker to find keywords on any page. One can add custom-made function buttons. It has built-in RSS feed reader and URL alias facility to create keyboard shortcuts to favorite sites. Page zoom slider ranges from 25% to 500%. Its compact mode saves interface space and there is a boss button to hide browser quickly. The tray icons keep Avant running in system tray for fast access. It is also having customizable mouse gestures, autoscroll facility for hands-free reading; context-activated floating toolbars to save and edit images, text and Flash; customizable right-click menu entries; quick translation menu, the system of automatic page refresh at custom intervals and many other features. Its Push-button helps in quick blocking of unwanted items.