7-Zip 4.45 beta

7-Zip is a file archiver with a high compression ratio. The program supports 7z, ZIP, CAB, RAR, ARJ, LZH, CHM, GZIP, BZIP2, Z, TAR, CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format. It also compresses to ZIP 2-10% better than PKZip and WinZip. It has an additional powerful command line version and FAR Manager support.

Now it’s possible to specify the size of solid block and the number of CPU threads in “Add to archive” dialog box.
Default dictionary size was increased: Normal: 16 MB, Max: 32 MB.
Speed optimizations.
Benchmark was improved (new “b” command in command line version).
The number of DLL files was reduced.
Now it’s possible to associate 7-zip with combined types like .tbz2
switch -mhcf=off is not supported now.
If -t{Type} switch is not specified, 7-Zip now uses extension of archive to detect the type of archive.
Some bugs were fixed.
New localization: Welsh.

>> 7-Zip website
>> Download 7-Zip 4.45 beta

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