[11.57b1] Unable to extract the encrypted zip file

[pulbitz]

Version 11.57b1 has an issue where it cannot extract certain encrypted Zip files.
(Not all encrypted zip files are affected. It is unclear under what conditions a file must be created for this problem to occur.)
Even when entering the correct password, it keeps asking for the password(wrong password?).
Below is a sample file. The password is password.
https://www.mediafire.com/file/xezzvrecmrnb6pc/password+is+password.zip/file

[white]

Confirmed when using Unpack all (cm_UnpackFiles).

[Horst.Epp]

No problem using cm_UnpackFiles

[AntonyD]

Confirmed. It can't unpack the first one file "INSTALL.CAB"
Archive itself does not contain any errors.

[petermad]

I cannot unpack the files in the sample archive with Alt+F9 (cm_UnpackFiles) -TC keeps asking for the password.

If I open the archive with Enter or Ctrl+PgDn I can unpack all files with F5.

If I delete all files in the archive except one - it doesn't matter which one I leave - then I can unpack with Alt+F9.
If I unpack the archive and repack it to a new zip file with encryption (AES256) with the internal Zip-packer I get a zip file that is 3405 bytes smaller, that I can unpack with Alt+F9.
If I unpack the archive and repack it to a new zip file with encryption (AES256) with 7-zip I also get a zip file, that I can unpack with Alt+F9.

I can unpack the sample archive with 7zFM.exe and WinRAR.exe

The files in the sample archive appears to be packed as: AES256, stored - whereas the files in my repacked archives are packed as AES256, deflated

[sqa_wizard]

Unpacking works fine with TC 11.56
Unpacking fails with TC 11.57ß1

[ghisler(Author)]

Confirmed, I will fix it.

20.11.25 Fixed: Use new faster ZIP unpacker also for archives where the compressed size is stored after the data (streaming archive), e.g. from Google Takeout (32/64)

I'm now using the compressed file sizes from the central directory, but it wasn't copying them correctly in the cm_UnpackFiles function.

[ghisler(Author)]

This should be fixed in Total Commander 11.57 beta 2, please check!

[white]

Tested OK using TC 11.57b2 32-bit and 64-bit.

[pulbitz]

Fixed in 11.57b2. Thanks!

[ghisler(Author)]

Great, thanks!

Moderator message from: ghisler(Author) » 2026-03-05, 08:29 UTC

Moved to fixed bugs