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  1. 03-23-2006 10:07 AM #1
    Smeaton
    Smeaton is offline
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    Mar 2006
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    Default What the algorithms have been used in Winzip10.0 trial version?

    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.
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  2. 03-23-2006 07:01 PM #2
    locustfurnace
    locustfurnace is offline
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    10.0 appears to be using LZH + LZW + SF + Huff + PPMd, as reported via MaximumCompression

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