How to extract data from archive with signature 789C?

Question

Google say what is this zip archive, but I cannot its extract by ICSharpCode.SharpZipLib and Zlib.net libraries.

That is a zlib header. What did you try with zlib that resulted in "I cannot its extract"? — Mark Adler, Feb 16 '14 at 15:27
var t = new ICSharpCode.SharpZipLib.Zip.ZipInputStream(input); and ZOutputStream outZStream = new ZOutputStream(output, zlibConst.Z_DEFAULT_COMPRESSION); — christo, Feb 16 '14 at 15:36
That's not zlib, that's SharpZipLib. What did you try with zlib that resulted in "I cannot its extract"? — Mark Adler, Feb 16 '14 at 16:05
Second sanmple is Zlib (ZOutputStream outZStream = new ZOutputStream(output, zlibConst.Z_DEFAULT_COMPRESSION)) — christo, Feb 16 '14 at 17:02
Also consider using [DotNetZip](http://dotnetzip.codeplex.com/) instead, which has a better interface to zlib. — Mark Adler, Feb 16 '14 at 18:18
Bellissimo)) DotNetZip for Zlib worked) Very thanks for you!) — christo, Feb 16 '14 at 18:49

score 3 · Accepted Answer · edited Oct 07 '21 at 05:59

3

That is a zlib (RFC 1950) header. You can use the zlib library to decompress it.

edited Oct 07 '21 at 05:59

Community

answered Feb 16 '14 at 15:26

Mark Adler

score 2 · Answer 2 · answered Feb 10 '17 at 18:30

2

I found offzip.exe at http://aluigi.altervista.org/mytoolz.htm to be super helpful to expand RFC 1950s.

answered Feb 10 '17 at 18:30

infoone

2 Answers2