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Tuesday, 8 January 2013

WinRAR 4.20 (32-bit)

WinRAR is one of the best archiving tools, which supports almost all known formats (RAR and ZIP archives and is able to unpack CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, 7Z, Z archives). The program also works with multi-volume archives (which span on more than one hard disks), offers different levels of compression, can create self-extracting archives, and supports password protection as well.

WinRar has easy to use interface, and a built-in Wizard, which is a great tool for novice users. It is also extremely fast, can work quietly in the background, can be run from the command line, can work with files as big as 8,589 billion gigabytes in size, and offers 128 bit encryption. WinRar 4 has been translated into more than 45 languages!



Latest version:
WinRAR 4.20 (32-bit)
Requirements:
Windows 9x / 2000 / XP / 2003 / Vista / Windows 7
Author / product:
RARLab / WinRAR (32-bit)
File size / license:
1.45 MB / Shareware

Change Log

- Recovery volume creating and processing can use several CPU cores resulting in higher speed. Though, typically hard drive seek speed is a limiting factor for recovery volumes, so this gain is most noticeable when working with solid state drive.
- Now the allowed value for -mt switch is 1 - 32, not 0 - 16 as before.
- "Find files" command can search data in 7-Zip archives. Previously "Find files" did not support .7z archive format.
- Windows 2000 is not supported by WinRAR and WinRAR self-extracting modules anymore.
- RAR general decompression algorithm speed is slightly improved, though not to same extent as RAR compression. RAR decompression is not able to use several processor cores, so its performance does not depend on a number of cores.
- "Save current settings" button in "Advanced SFX options" dialog is now available only when converting an existing archive to SFX. Options saved with this button are applied only to convert to SFX operation. If you create or update SFX archive, only SFX options stored in default compression profile are used. Options saved in "Advanced SFX options" dialog are ignored for these operations.
Changes in ZIP compression:
- now ZIP compression supports several processor cores resulting in noticeably higher performance in multi-core environment. Single CPU ZIP compression is also faster than in 4.11;
- memory use for ZIP compression is increased to about 15 MB.
Changes in RAR compression:
- RAR general compression algorithm is optimized for better utilization of several processor cores. While some speed gain is possible even in single processor mode, best results are achieved in multi-core environment. Speed gain depends on data type and average file size. Several cores are utilized more efficiently when compressing large files.
- we had to increase memory requirements to achieve higher compression speed. General RAR compression algorithm allocates about 120 MB comparing to 40 MB in WinRAR 4.11;
- RAR text compression algorithm cannot utilize several CPU cores efficiently, so its performance in multiprocessor environment is much lower than for general algorithm. Also its decompression speed is much lower than in general algorithm regardless of CPU number. So we decided to disable the text algorithm by default. If you need maximum possible compression ratio for plain text data regardless of speed, you can enable the text compression in "Advanced compression parameter" dialog. Press "Compression..." button on "Advanced" page of archiving dialog to access it. You can also change this option permanently in default compression profile; In the command line mode the text compression can be enabled with -mct switch;
- "Fastest" (-m1) compression mode also supports several processor cores now. In 4.11 it could use only a single processor core.

Note: WinRar is a paid product with 40 day trial version.



Free Software Download for Windows 

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