SevenZipExtractor

November 26, 2023 · View on GitHub

C# wrapper for 7z.dll (x86 and x64 included). Due to a compatibility issue with "Source Generated" COM Interop, this fork only works with .NET 8.
This fork has been modified to work with NativeAOT and ILTrimming on .NET 8. This fork also adds other features such as:

Cancellable extraction
Progress event
Latest 7z.dll library (Currently: v23.01)

However, all the credits for the initial works have been done by the original creator: Alexander Selishchev

This fork is unfortunately still unavailable on NuGet but if you prefer one, please refer to the original version here:

Every single star makes maintainer happy! ⭐

NuGet

Install-Package SevenZipExtractor

Supported formats:

7Zip
APM
Arj
BZip2
Cab
Chm
Compound
Cpio
CramFS
Deb
Dll
Dmg
Exe
Fat
Flv
GZip
Hfs
Iso
Lzh
Lzma
Lzma86
Mach-O
Mbr
Mub
Nsis
Ntfs
Ppmd
Rar
Rar5
Rpm
Split
SquashFS
Swf
Swfc
Tar
TE
Udf
UEFIc
UEFIs
Vhd (?)
Wim
Xar
XZ
Z
Zip

Examples

Extract all

CancellationTokenSource tokenSource = new CancellationTokenSource();
using (ArchiveFile archiveFile = new ArchiveFile(@"Archive.ARJ"))
{
    archiveFile.Extract("Output", tokenSource.Token); // extract all with cancellable control using token
}

Extract to file or stream

using (ArchiveFile archiveFile = new ArchiveFile(@"Archive.ARJ"))
{
    foreach (Entry entry in archiveFile.Entries)
    {
        Console.WriteLine(entry.FileName);
        
        // extract to file
        entry.Extract(entry.FileName);
        
        // extract to stream
        MemoryStream memoryStream = new MemoryStream();
        entry.Extract(memoryStream);
    }
}

Guess archive format from files without extensions

using (ArchiveFile archiveFile = new ArchiveFile(@"c:\random-archive"))
{
    archiveFile.Extract("Output"); 
}

Guess archive format from streams

WebRequest request = WebRequest.Create ("http://www.contoso.com/file.aspx?id=12345");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();

using (ArchiveFile archiveFile = new ArchiveFile(response.GetResponseStream())
{
    archiveFile.Extract("Output"); 
}

Wiki

7z.dll

7z.dll (x86 and x64) will be added to your BIN folder automatically.

License

Based on code from: http://www.codeproject.com/Articles/27148/C-NET-Interface-for-Zip-Archive-DLLs
Source code in this repo is licensed under The MIT License
7z binaries license http://www.7-zip.org/license.txt

Changelog

1.0.17 / 2022.04.08

#54 4Gb+ archives fixed! 🎉 (Thanks Pyroluk)

1.0.16 / 2021.01.17

7z binaries updated to 21.07.0.0
PR#56 - signature for SquashFS (Thanks mmoosstt)
PR#53 - look for binaries in bin folder (Thanks CupSunshine)

1.0.15 / 2020.01.14

.NETStandard 2.0 support PR#38

1.0.14

Entry.Extrat - preserveTimestamp is true by default #34
Dynamic operations can only be performed in homogenous AppDomain" #36