omni.ja is creating an error while decompressing

[zap369]

I'm using a French win xp SP3 32bit but when I try to decompress mypal-68.14.6b.en-US.win32.zip I get an error for both omni.ja files. I tried 7zip but in winrar the error looks like this:

! D:\Firefox downloads\mypal-68.14.6.en-US.win32.zip: Méthode inconnue dans mypal\browser\omni.ja
! D:\Firefox downloads\mypal-68.14.6.en-US.win32.zip: Méthode inconnue dans mypal\omni.ja

Roughly translates to : Unknown method in Mypal.

I've never had any problems like this with previous versions.

By the way. Thank you very much for the work that you do.

[JimMP68User]

I used "7-Zip" because native Windows Xp unzipping dd not work. I even downloaded the .zip file again, to no avail.

I used 7-Zip Version 9.20 and everything unzipped into directories as normal.

[zap369]

Thanks Jim. 7-Zip version 24.09 worked on my end. Maybe my winrar is too old but that doesn't explain why I've never had decompression errors with previous versions.

[zanud]

Maybe my winrar is too old but that doesn't explain why I've never had decompression errors with previous versions.

In previous releases all files in .zip were compressed with Deflate method:

Archive:  mypal-68.14.5.en-US.win32.zip
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
   18704  Defl:X    10491  44% 21.03.2018 12:24 394938d8  mypal/api-ms-win-core-console-l1-1-0.dll
[...]
  110027  Defl:X    26367  76% 25.11.2024 17:39 6f2661ca  mypal/browser/features/[email protected]
35988973  Defl:X 11114516  69% 25.11.2024 17:39 d65ef686  mypal/browser/omni.ja
  105568  Defl:X   105270   0% 11.11.2024 22:33 0e2fad32  mypal/browser/VisualElements/VisualElements_150.png
[...]
  361472  Defl:X   170902  53% 25.11.2024 17:38 63c20b53  mypal/nssckbi.dll
19087043  Defl:X  6243693  67% 25.11.2024 17:39 5d1a477f  mypal/omni.ja
     102  Defl:X       97   5% 25.11.2024 17:38 392a6b43  mypal/platform.ini
[...]
85255680  Defl:X 35540664  58% 25.11.2024 17:38 3cfa11ef  mypal/xul.dll
--------          -------  ---                            -------
164131023         62965775  62%                            78 files

Deflate is an old compression method (introduced in the first version of PKZIP for MS-DOS).

In 68.14.6b two files are compressed with relatively modern LZMA method:

Archive:  mypal-68.14.6.en-US.win32.zip
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
   18704  Defl:X    10491  44% 21.03.2018 12:24 394938d8  mypal/api-ms-win-core-console-l1-1-0.dll
[...]
  107913  Defl:X    25933  76% 22.01.2025 23:23 273d5766  mypal/browser/features/[email protected]
32398675  LZMA    7614316  77% 24.01.2025 18:31 5524f216  mypal/browser/omni.ja
  105568  Defl:X   105270   0% 22.01.2025 02:20 0e2fad32  mypal/browser/VisualElements/VisualElements_150.png
[...]
  361472  Defl:X   170857  53% 22.01.2025 23:19 86b7427a  mypal/nssckbi.dll
 8171767  LZMA    7651341   6% 24.01.2025 18:50 5b70ee4f  mypal/omni.ja
     102  Defl:X       97   5% 22.01.2025 23:18 465df36f  mypal/platform.ini
[...]
85477888  Defl:X 35626924  58% 22.01.2025 23:19 53328435  mypal/xul.dll
--------          -------  ---                            -------
149851183         60959108  59%                            78 files

I have no information about WinRAR 6 and 7, but WinRAR 5 does not support LZMA.