I've opened each zip file using the WinZip detailed diagnostics feature and I can see lots of differences in the files produced but I don't understand which ones may be causing the issue. I have no control over the target application that's loading the zip so all I can do is make my file look like the WinZip-generated version. However, if I unzip the zip file that's being generated and use WinZip to zip it back up again, the file can be used. The problem I'm having is that the zip file generated by me cannot be read by the application I'm loading it into. June 19, 2012.I have a class that is zipping a directory's contents into a zip file.

^ 'WinZip® Android App Now Available: WinZip Multi-platform Product Line Extends Mobile Support with Free Android App'.

^ New Free WinZip® App for iPhone® and iPad® - Open and Browse Zipped Files on the Go.

^ WinZip Compression, Encryption and Email Attachment Optimization Coming to New Platforms - The World's Most Trusted Zip Utility Now Available for the Mac.

^ 'When does support end for WinZip applications? - WinZip Computing :: Knowledgebase'.

^ Computing Encyclopedia - Article about WinZip.

^ See Brian Gladman's AES code page and the official list of validated AES implementations.

(272 KB), AES Encryption Information: Encryption Specification AE-1 and AE-2

^ 'FIPS PUB 197: The Advanced Encryption Standard' (PDF).^ 'Corel to return to public life merged with WinZip'.Archived from the original on March 12, 2007.

^ a b 'Corel Corporation Acquires WinZip Computing World's Leading Aftermarket Compression Utility Joins Award-Winning Software Portfolio'.^ 'Why is my registration code not working in WinZip 12?'.Hartford, Connecticut: Tribune Publishing. ^ Table of file formats supported by WinZip, WinZip Computing Knowledge base.^ Error: Unable to display the reference properly.Table: History of WinZip Windows releases

What is winzip used for