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The licenses for files are: 1) 7z.dll: - The "GNU LGPL" as main license for most of the code. - The "GNU LGPL" with "unRAR license restriction" for some code. - The "BSD 3-clause License" for some code. 2) All other files: the "GNU LGPL".
Licenses for files are: 7z.dll: GNU LGPL + unRAR restriction. All other files: GNU LGPL. The GNU LGPL + unRAR restriction means that you must follow both GNU LGPL rules and unRAR restriction rules. Note: You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip.
Licenses for files are: 7z.dll: GNU LGPL + unRAR restriction. All other files: GNU LGPL. The GNU LGPL + unRAR restriction means that you must follow both GNU LGPL rules and unRAR restriction rules. Note: You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip.
For instance, you can change the code from 7-Zip or write a wrapper for some code from 7-Zip and compile it into a DLL; but, the source code of that DLL (including your modifications / additions / wrapper) must be licensed under the LGPL or GPL.
The relevant license for your use case is the LGPL license. The BSD license and the unRAR restriction only apply when you take the relevant portions of code out of the 7Zip sources.
The "BSD 3-clause License" is used for the code in 7z.dll that implements LZFSE data decompression.
License. 7-Zip Copyright (C) 1999-2010 Igor Pavlov. Licenses for files are: 7z.dll: GNU LGPL + unRAR restriction All other files: GNU LGPL The GNU LGPL + unRAR restriction means that you must follow both GNU LGPL rules and unRAR restriction rules. Note: You can use 7-Zip on any computer, including a computer in a commercial organization.
