SharpZipLib (#ziplib, formerly NZipLib) is a compression library that supports Zip files using both stored and deflate compression methods, PKZIP 2.0 style and AES encryption, tar with GNU long filename extensions, GZip, zlib and raw deflate, as well as BZip2.

Zip64 is supported while Deflate64 is not yet supported. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET language).

The creator of SharpZipLib put it this way:

I've ported the zip library over to C# because I needed gzip/zip compression and I didn't want to use libzip.dll or something like this. I want all in pure C#.

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