Download 7-Zip 4.57Visit 7-Zip 4.57
A very good file archiver with highest compression ratio
7-Zip is a file archiver with a high compression ratio.
Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.
7-Zip works in Windows 98/ME/NT/2000/XP. Command line version of 7-Zip can be used in Linux via Wine program.7-Zip is the free file archiver with the highest compression ratio.
Usually 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than other zip compatible programs.
My Comment: Small and powerfull freeware, but take large amount of memory when processing.
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