7-Zip 18.01 – Final

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7-Zip7-Zip 18 is an open source file archiver with the high compression ratio predominantly for the Microsoft Windows operating system. It operates either as a command line program or with a graphical user interface. It also features integration with the Windows shell environment.

7-Zip is free software, developed by Igor Pavlov and distributed under the GNU LGPL license.Compression ratio results are very dependent upon the data used for the tests. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And it compresses to zip format 2-10% better than most of other zip compatible programs. This file archiver works on all Windows operating systems, from Windows NT to Windows 10 (32-bit and 64-bit).

7-Zip main features:

  • High compression ratio in new 7z format with LZMA compression and LZMA2 compression
  • For ZIP and GZIP formats, the provided compression ratio is 2-10 % better than the ratio provided by PKZip and WinZip
  • Strong AES-256 encryption in 7z and ZIP formats
  • Self-extracting capability for 7z format
  • Integration with Windows Shell
  • Powerful File Manager
  • Powerful command line version
  • Plugin for FAR Manager
  • Localizations for 87 languages
  • Supported formats:
    • Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
    • Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.

Changes in 7-Zip 18.01:

  • Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression. Tha app now uses additional memory buffers for multi-block LZMA2 compression. CPU utilization was slightly improved.
  • Now creates multi-block xz archives by default. Block size can be specified with -ms[Size]{m|g} switch.
  • xz decoder now can unpack random block from multi-block xz archives. The File Manager now can open nested multi-block xz archives (for example, image.iso.xz) without full unpacking of xz archive.
  • Now can create zip archives from stdin to stdout.
  • ZIP unpacking code was improved.
  • Now can unpack OBJ/COFF files.
  • Now can unpack DMG archives that use LZFSE compression method.
  • Now doesn’t allow update operation for archives that have read-only attribute.
  • Command line: @listfile now doesn’t work after — switch. Use -i@listfile before — switch instead.
  • new -sse switch to stop archive creating, if 7-Zip can’t open some input file.
  • The app now reserves file space before writing to file (for extraction from archive). It can reduce file fragmentation.
  • Internal changes in code.
  • The BUGs were fixed: 7-Zip could add unrequired alternate file streams to WIM archives, for commands that contain filename wildcards and -sns switch. Extracting from tar with -si switch didn’t set timestamps for directories.
  • Some bugs were fixed. 7-Zip could crash in some cases.

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Size: 1.09 MB

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