7-Zip是一个开放源码的数据压缩程序，主要用在Microsoft Windows操作系统，Unix-like的操作系统如Linux与 FreeBSD下面有7-zip的移植版本p7zip可以使用。它提供命令行接口的程序或图形用户界面的程序，而且可以与资源管理器结合。7-Zip是自 由软件，由Igor Pavlov于1999年开始发展，并把主体在GNU LGPL下发布，加密部份使用AES的代码，使用BSD license发 布，解压RAR部分使用RAR特定的许可协议。 Changes in version 9.31 Alpha, 2013-11-29: - 7-Zip now can create multivolume SFX archives in 7z format. - ZIP, NSIS, HFS, AR support was improved. - 7-Zip now supports files larger than 4 GiB in ISO archives - Improved compression ratio in 7z format with maximum or ultra level for executable files (EXE and DLL) that are larger than 16 MB (improved BCJ2 filter). - Improved support for file pathnames longer than 260 characters. - CRC and SHA checksum calculation for files can be called via Explorer’s context menu. - 7-Zip File Manager now also takes into account the numbers in filenames for sorting order. - 7-Zip File Manager can open files in “Parser” mode via “Open Archive > #” context menu command. It shows the list of archives inside file. - Command line version: # # new -t# switch to open file in “Parser” mode and show the list of archives inside file. # # new -stx{Type} switch to exclude archive type from using. # # -scs switch now supports UTF-16 encoding. - The BUGs were fixed: # # 7-Zip could work incorrectly in decompression of more than one multi-volume archive in one command. # # 7-Zip 9.24 alpha – 9.30 alpha versions could not extract ZIP archives encrypted with PKWARE-AES method. - New localization: Irish. 下载地址: 7-Zip 9.31 Alpha (32-bit) 7-Zip 9.31 Alpha (64-bit) 7-Zip 9.22 Beta (32-bit) 7-Zip 9.22 Beta (64-bit) 7-Zip 9.20 (32-bit) 7-Zip 9.20 (64-bit)
