WinRAR
It is a shareware file archiver and compressor utility for Windows. It can create archives in RAR or ZIP file formats, and
unpack numerous archive file formats. There is an Android app called "RAR for Android",[3] and command-line versions called "RAR" and "UNRAR"
(widely released since autumn of 1993), available for Mac OS X, Linux, FreeBSD, Windows console mode, and MS-DOS.
Features
·
Pack (create) or
validate (test) RAR or ZIP archive files. Choice of RAR4 or RAR5
file format.
·
Unpack ACE, ARJ, BZ2, CAB, EXE, GZ, ISO, JAR, LHA, RAR, TAR, UUE, XZ, Z, ZIP, ZIPX, 7z archive files.
·
Multiple-core CPU
threading compression and decompression.
When creating RAR archive files:
·
Support for maximum
file size of 16 EB (264 bytes) minus 1.
·
Choice of compression
directory size from 1 MB to 1 GB (256 MB limit on 32-bit Windows). Default size
is 32 MB.
·
Optional 256-bit BLAKE 2 file hash in addition to default 32-bit CRC32 file
checksum.
·
Optional encryption using AES (Advanced
Encryption Standard) with a 256-bit key.
·
Optional data redundancy is
provided in the form of Reed-Solomon recovery
records and recovery volumes, allowing reconstruction of
damaged archives.
·
Optional "Quick
Open Record" to open RAR files faster.
·
Ability to create
multi-volume (split)
archives
·
Ability to create self-extracting files.
·
Support for advanced NTFS file
system options, such as NTFS hard and symbolic
links.
·
Support for maximum
path length for files up to 2048 characters (stored in UTF-8 format).
·
Optional archive
comment (stored in UTF-8 format).
License
The software is distributed as a shareware and anyone may use it
during a test period of 40 days at no charge.
Although archiving with the RAR format is proprietary, Rarlabs
supply as copyrighted freeware the source
code of the UnRAR unpacker, with a license allowing it to be used in any
software, thus enabling others to produce software capable of unpacking, but
not creating, RAR archives.
Languages
As of February 2015, WinRAR is available in 44 languages: Albanian,
Arabic, Armenian, Belarusian, Bulgarian, Catalan, Chinese Simplified, Chinese
Traditional, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish,
French, Galician, Georgian, German, Greek, Hebrew, Hungarian, Indonesian,
Italian, Japanese, Korean, Lithuanian, Norwegian, Persian, Polish, Portuguese,
Portuguese Brazilian, Romanian, Russian, Serbian Cyrillic, Slovak, Slovenian,
Spanish, Swedish, Thai, Turkish, Ukrainian, Uzbek, Vietnamese.
History
Versions
Command line RAR and UNRAR were first released
in autumn 1993.
·
Early development
version WinRAR 1.54b was released in 1995 as 16-bit Windows 3.x application.
·
Version 2.00 was
released on September 6, 1996.
·
Since version 3.00
(May 2002), the new RAR3 archive format is implemented. The new
compressed archives cannot be managed by old versions of WinRAR.
·
Since version 3.41
(December 2004), WinRAR adds support for Linux .Z archives like GZIP and BZIP2.
New options include storing entire file paths and restoring compressed NTFS
files.
·
Since version 3.50
(August 2005), WinRAR adds support for interface skins and themes and support Windows XP x64.
·
Since version 3.60
(August 2006), WinRAR includes a multithreaded version
of the compression algorithm, which improves compression speed on systems with multiple, dual-core, or Hyper-threading-enabled CPUs.
·
Since version 3.70
(circa January 2007), WinRAR features support for Windows Vista.
·
Since version 3.80
(September 2008), support for ZIP archives, which contain Unicode file names in UTF-8.
·
Since version 3.90
(May 2009), WinRAR adds support Windows x64 natively
and support Windows 7. Also it
enhanced support for multithreading
·
Version 3.91 is the
last version that supports Valencian.
·
Version 3.92 is the
last version that supports Serbian Cyrillic and Serbian Latin.
·
Version 4.00 (March
2011) speeds up decompression by up to 30%. Windows 98, Windows Me, and Windows NT are no longer supported; the
minimum Windows version required is Windows 2000.
·
Since version 4.10
(January 2012) WinRAR removes all ZIP limitations now allowing unlimited number
of files and archive size. WinRAR now also allows to create multivolume ZIP
files. ZIP archives now include Unicode file names.
·
Since version 4.20
(June 2012) Compression speed in SMP mode
has been increased significantly, but this improvement was made at the expense
of increased memory usage. ZIP compression now uses SMP as well. The default
SMP mode cannot handle text; text compression is significantly worse unless
additional switches are used. Also, Windows 2000 compatibility was removed.
·
Since version 5.00
(September 2013) the new RAR5 archive format is implemented. The new compressed
archives cannot be managed by old versions of WinRAR. This new format features
a maximum 1 GB dictionary (only in 64-bit version), better multicore support,
it removes multimedia, text and Itanium binaries special compression
algorithms



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