Question

I need to unzip password protected file.

I am asking for library to include to my Windows project, not utility.

Requirements:

• password supported
• C or C++
• not MFC-depended
• wish it not be DLL(as they are usualy compiled in some incompatible mode)

Already searched SO and Google, unfortunately no libraries found yet.

• most recommended “zlib” doesn’t support passwords;
• “Zip Utils” by Lucian Wischick (here) is nice, but there’s a bug – extracted file is cropped at end;
• another library I found is MFC-depended.

I can’t believe there is no solution for this simple task in 2012. Please help.

Answer 1

Ended up using “Zip Utils” by Lucian Wischick.

There was a bug – extracted file is cropped by 12 bytes at end. I found out how to fix it.

To fix this bug, delete line 3657 in file “unzip.cpp”:

pfile_in_zip_read_info->rest_read_uncompressed-=uDoEncHead;