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Is there any simple & freeware program to fix corrupted zip files for windows platform ? I've lot of corrupted zip files and would like to recover some of the files from it

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Have you tried with a variety of unzippers? Maybe 7zip can do it if built in windows can't... –  outsideblasts Oct 10 '09 at 7:08
    
7zip doesn't have the option to fix the corrupted zip –  ukanth Oct 10 '09 at 10:41
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2 Answers 2

up vote 4 down vote accepted

WinRar repairs damaged archives.

WinRar is shareware, but available as an unlimited trial (if you don't register and pay, the program simply "nags", it doesn't stop working).

There's also DiskInternals ZIP Repair

DiskInternals ZIP Repair has built-in extraction features that allow it to extract partially damaged and restored files.

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Ya , This is cool . But does it have batch repair feature ? –  ukanth Oct 10 '09 at 15:47
    
Doesn't look that way. I don't know any such tool. –  harrymc Oct 10 '09 at 17:12
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I have no idea if it is available on windows, but you did ask for an open source answer (that's probably available under cygwin though).

You might use the zip command itself (at least under linux):

If only some bits are missing (incomplete download):

zip -F your_corrupted_zip_file.zip

If the archive's data is damaged (wrong data) (this command is less reliable):

zip -FF your_corrupted_zip_file.zip
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Info-Zip' zip command also has a Windows version, no need to use cygwin. They even have an Amiga binary... –  sleske Jan 6 '10 at 11:41
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