The code is mainly 7zip and 7zip LZMA, the former is a platform for the client, which is the SDK. 7-Zip is a known as a high compression ratio of the current compression software, which not only supports the proprietary 7z file format, but also supports a variety of other compressed file formats, including ZIP, RAR, CAB, GZIP, BZIP2 and TAR. This software is compressed ZIP file compression ratio higher than the normal 30-50 . Therefore, it can be compressed by WinZip compressed file and then 2-10 .

7z920-CP
........\Asm
........\...\arm
........\...\...\7zCrcOpt.asm
........\...\x86
........\...\...\7zAsm.asm
........\...\...\7zCrcOpt.asm
........\...\...\AesOpt.asm
........\C
........\CPP
........\...\7zip
........\...\....\Aes.mak
........\...\....\Archive
........\...\....\.......\7z
........\...\....\.......\..\7z.dsp
........\...\....\.......\..\7z.dsw
........\...\....\.......\..\7zCompressionMode.cpp
........\...\....\.......\..\7zCompressionMode.h
........\...\....\.......\..\7zDecode.cpp
........\...\....\.......\..\7zDecode.h
........\...\....\.......\..\7zEncode.cpp
........\...\....\.......\..\7zEncode.h
........\...\....\.......\..\7zExtract.cpp
........\...\....\.......\..\7zFolderInStream.cpp
........\...\....\.......\..\7zFolderInStream.h
........\...\....\.......\..\7zFolderOutStream.cpp
........\...\....\.......\..\7zFolderOutStream.h
........\...\....\.......\..\7zHandler.cpp
........\...\....\.......\..\7zHandler.h
........\...\....\.......\..\7zHandlerOut.cpp
........\...\....\.......\..\7zHeader.cpp
........\...\....\.......\..\7zHeader.h
........\...\....\.......\..\7zIn.cpp
........\...\....\.......\..\7zIn.h
........\...\....\.......\..\7zItem.h
........\...\....\.......\..\7zOut.cpp
........\...\....\.......\..\7zOut.h
........\...\....\.......\..\7zProperties.cpp
........\...\....\.......\..\7zProperties.h
........\...\....\.......\..\7zRegister.cpp
........\...\....\.......\..\7zSpecStream.cpp
........\...\....\.......\..\7zSpecStream.h
........\...\....\.......\..\7zUpdate.cpp
........\...\....\.......\..\7zUpdate.h
........\...\....\.......\..\makefile
........\...\....\.......\..\resource.rc
........\...\....\.......\..\StdAfx.cpp
........\...\....\.......\..\StdAfx.h
........\...\....\.......\ApmHandler.cpp
........\...\....\.......\Archive.def
........\...\....\.......\Archive2.def
........\...\....\.......\ArchiveExports.cpp
........\...\....\.......\ArjHandler.cpp
........\...\....\.......\Bz2Handler.cpp
........\...\....\.......\Cab
........\...\....\.......\...\CabBlockInStream.cpp
........\...\....\.......\...\CabBlockInStream.h
........\...\....\.......\...\CabHandler.cpp
........\...\....\.......\...\CabHandler.h
........\...\....\.......\...\CabHeader.cpp
........\...\....\.......\...\CabHeader.h
........\...\....\.......\...\CabIn.cpp
........\...\....\.......\...\CabIn.h
........\...\....\.......\...\CabItem.h
........\...\....\.......\...\CabRegister.cpp
........\...\....\.......\...\StdAfx.h
........\...\....\.......\Chm
........\...\....\.......\...\ChmHandler.cpp
........\...\....\.......\...\ChmHandler.h
........\...\....\.......\...\ChmHeader.cpp
........\...\....\.......\...\ChmHeader.h
........\...\....\.......\...\ChmIn.cpp
........\...\....\.......\...\ChmIn.h
........\...\....\.......\...\ChmRegister.cpp
........\...\....\.......\...\StdAfx.h
........\...\....\.......\Com
........\...\....\.......\Common
........\...\....\.......\......\CoderMixer.cpp
........\...\....\.......\......\CoderMixer.h
........\...\....\.......\......\CoderMixer2.cpp
........\...\....\.......\......\CoderMixer2.h
........\...\....\.......\......\CoderMixer2MT.cpp
........\...\....\.......\......\CoderMixer2MT.h
........\...\....\.......\......\CoderMixer2ST.cpp
........\...\....\.......\......\CoderMixer2ST.h
........\...\....\.......\......\CoderMixerMT.cpp
........\...\....\.......\......\CoderMixerMT.h
........\...\....\.......\......\CrossThreadProgress.cpp
........\...\....\.......\......\CrossThreadProgress.h
........\...\....\.......\......\DummyOutStream.cpp
........\...\....\.......\......\DummyOutStream.h
........\...\....\.......\......\FindSignature.cpp
........\...\....\.......\......\FindSignature.h
........\...\....\.......\......\HandlerOut.cpp
........\...\....\.......\......\HandlerOut.h
........\...\....\.......\......\InStreamWithCRC.cpp
........\...\....\.......\......\InStreamWithCRC.h
........\...\....\.......\......\ItemNameUtils.cpp
........\...\....\.......\......\ItemNameUtils.h
........\...\....\.......\......\MultiStream.cpp

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