Zip Component, Email Component, Encryption Component ActiveX Control for Zip Compression .NET Components for ASP.NET
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September 18, 2007

AES Zip Encryption and 7-Zip


I have a new client who I am sending data too in a zip file format. I sent
him a file compressed using WinZip AES encryption (Encryption property = 4).

His un-encryption package (7-Zip) does not seem to support this. I am
forwarding you his request.

I know nothing about encryption and hope you can recommend the necessary
‘Encryption property to use with Chilkat to be compatible with his package.

7-Zip version 4.42 does not support WinZip AES Encryption. You can use
the older (less secure) Zip 2.0 Encryption (also known as Password Protection) by
instead setting the Encryption property = 0, and the PasswordProtect property = true.

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