WinZip is a straight-forward zipping and unzipping utility that includes built-in support for popular Internet file formats such as TAR, ZIP, UUencode, XXencode, BinHex, MIME and Unix-compressed files. ARJ, LZH and ARC files are supported via external programs. An optional wizard simplifies unzipping and installing software in ZIP files. New features in WinZip 7.0 include the ability to create self-extracting files that span multiple disks; the ability to print a list of files in a ZIP; sizable and sortable columns in the main window; easier configuration using a tabbed dialog box; an improved install feature, optional support for IE 4.0-style "one-click open" and a configurable toolbar with 21 new button graphics.