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I am trying to decompress a NSIS executable. With the GUI version of 7zip I am able to do this and the exe is listed as:
Type = Nsis
Method = LZMA:25
Solid = +
With the command line version 7za I am unable to do this, but it is strange, since it is possible to compress with 7za using -m1=LZMA:d=25
Any idea to decompress or any alternative to 7za?
@Karan As far as I know, there's no legal issue since 7zip is basically LGPL. (Source: 7-Zip License for use and distribution ) If the executable goes to a third party they can request the source code, but you are probably in the case where it is enough to add a notice text file telling them where you got the executable, since the source will be available there, too. See details in ref esp. section 6. Disclaimer: I am not a lawyer.
– Stéphane Gourichon – 2016-01-12T21:43:02.477"With the GUI version of 7zip I am able to do this" - So what's the problem? Are you specifically looking to do this from the command-line only? Isn't using the GUI 7z.exe from the command-line an option? – Karan – 2013-01-13T18:18:54.447
1@Karan: yes I need to automate the task and execute it on a PC where I cannot assume 7zip is installed. – antonio – 2013-01-13T18:32:39.820
I'm not sure about the legality, but perhaps 7z.exe might work without even being installed? – Karan – 2013-01-13T18:35:14.657