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Thread: how to tell if a file is zipped

  1. #1

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    how to tell if a file is zipped

    is there anyway to programatically (VB6) determine if a file is compressed. I need something that will work for files with and without the *.zip extension.

    Thanks for any help
    Last edited by Muddy; Feb 12th, 2004 at 04:23 PM.

  2. #2
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    muddy,

    the ZIP file format is well known and available and yes, you can figure out by the presence of some internal tags whether a file is in fact a ZIP file (regardless of its extent)

  3. #3

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    Originally posted by phinds
    muddy,

    the ZIP file format is well known and available and yes, you can figure out by the presence of some internal tags whether a file is in fact a ZIP file (regardless of its extent)
    phinds,
    Thanks, Ill continue searching around the web. If you know of a standard that I can use as search term, it would be appreciated.

    Thanks again.

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