Total Commander

Trying to unpack this file

https //www waveshare com/w/upload/6/66/CP2102_EVAL_BOARD-Schematic.7z

fail with method not supported. Using the 7z application can unpack it (this is Deflate method according to 7z).

Confirmed without using a plugin.
With Total7zip plugin no problem of course.

I was able to create an archive with the same method string "LZMA:3m Deflate" using the following command line: It seems that it has two chained methods, and standard TC unpacker doesn't support this.

The LZMA SDK which I'm using doesn't support the Deflate algorithm. DeflateDecoder.cpp is NOT included. However, it is included in the 7zip source code. I wonder why it's missing from the LZMA SDK. Other decoders like for PPMD are included in both.

Here's a quote from current lzma-sdk.txt:

Igor Pavlov wrote:LZMA SDK provides the documentation, samples, header files,
libraries, and tools you need to develop applications that
use 7z / LZMA / LZMA2 / XZ compression.

Now reading Methods.txt file:

PPMD and LZMA are 7z methods so both may be included in LZMA SDK.
Deflate is a zip method, not 7z/LZMA/LZMA2/XZ so it's NOT included.

So it seems that an external Deflate decompressor should be used, e.g. one from TCUNZLIB.DLL.

No, there is a deflate compressor in the full 7zip package! I have included it now:
https://www.totalcommander.ch/win/tc7z.zip
Sources:
https://www.totalcommander.ch/win/tc7z_src.zip

Installation:
1. Close and re-open TC to ensure that tc7zip.dll gets unloaded.
2. Unpack the above archive to the Total Commander directory.

In addition to deflate, it also supports bzip2 now!

Glad I could help to improve your fabulous program, I'm using it since the early 90s when it was WindowsCommander

ghisler(Author) wrote: ↑2018-11-29, 11:38 UTC No, there is a deflate compressor in the full 7zip package!

But there are license issues there.
* LZMA SDK is in public domain and contains only original work of Igor Pavlov, the 7-zip developer. You can do whatever you want with this code.
* The whole 7-zip package includes code developed by other people and licensed on GNU GPL/LGPL (or similar license) so you must follow the license restrictions when reusing this code.

The 7zip files are under LGPL, that's why I have published the sources above! See quote here:
https://sourceforge.net/projects/sevenzip/

Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license with GNU LGPL + unRAR restrictions. Check the license for details.

It would be a problem if the license were GPL. Fortunately, dynamic linking to LGPL code is perfectly fine with the LGPL, only static linking directly into another program would be problematic.

That's what I've expected, but I will repeat "check the licenses for details" for ever