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View Full Version : What the algorithms have been used in Winzip10.0 trial version?


Smeaton
03-23-2006, 10:07 AM
Hi All, just wonder if anyone know the algorithms behind the Winzip 10.0 trial version?

What I know so far is that:

- for maximum data compression is a hybrid of LZ77 and Huffman coding known as 'Deflate'. LZW (Lepmel-Ziv-Welch) coding is patented by Unisys, Deflate is (as far as I know) public domain.

- Also use the repeated character compression algorithm.

Is there anything else?

Thanks a lot.
locustfurnace
03-23-2006, 07:01 PM
10.0 appears to be using LZH + LZW + SF + Huff + PPMd, as reported via MaximumCompression

http://www.maximumcompression.com/programs.php