7-Zip is a free software/open source file archiver designed originally for Microsoft Windows. 7-Zip operates primarily with the 7z archive format, as well as being able to read and write to several other archive formats. In operation a user can use the command line, graphical user interface or Windows shell integration. 7-Zip began in 2000 and is actively developed by Igor Pavlov. It is related to a cross-platform port, p7zip.

The main features of 7-Zip

* High compression ratio in new 7z format with LZMA compression
* Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
* For ZIP and GZIP formats, 7-Zip provides a compression ratio that 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 69 languages

Compression ratio

We compared 7-Zip with some of the leading archivers.

– 7-Zip now can update solid .7z archives.
– 7-Zip now supports LZMA2 compression method.
– 7-Zip now supports XZ archives.
– 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
– 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
– 7-Zip now can open/copy/compress disk images (like \\.\c:) from \\.\ folder.
– 7-Zip File Manager now doesn’t use temp files to open nested archives
stored without compression.
– New -scrc switch to calculate total CRC-32 during extracting / testing.
– New -scc{WIN|DOS|UTF-8} switch to specify charset for console input/output (default = DOS).
– Some bugs were fixed.

NOTE:
Microsoft Defender Antivirus now blocks and removes the file 7zFM.exe (32-bit x86) from 7-zip 23.01 by some reason.
It reports about Trojan:Win32/Wacatac.B!ml.
I suppose that it’s false positive.
If you know any ways to fix that problem with Microsoft Defender, please write here.

7-Zip 23.01 was released.

Microsoft Defender Antivirus =)

10-13-2019 – Added ISO7Z plugin support

• CCD/IMG – disc images created with CloneCD
• CDI – disc images created with DiscJuggler
• CHD (v4) – images used by MAME
• CSO
• CUE/BIN
• ECM – disc images compressed with ECM Tool
• GDI – Dreamcast Gigabyte disc images
• ISZ – disc images created with UltraISO
• MDS/MDF – disc images created with Alcohol 120%
• NRG – disc images created with Nero Burning ROM
• Zisofs compressed files

More Info

(Freeware Silent Repack)

x86

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x64

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