ZIP compressed w/password in 4.51 doesn't uncompress anymore

[patrick2]

I moved my hard drive, then updated Total Commander from 4.51 to 6.55, and my zip files with password compressed in 4.51 doesn't uncompress at all in any of the following:

Total Commander 6.55
WinRAR 3.0
Pkunzip 2.50
Pkunzip 2.04
WinACE 2.5

The error is: "Error uncompressing file.zip. Wrong password."

I have more than 100 zip files protected with the same password, so I'm doing everything as always.
I don't remember exactly the setting, but I think I was using the normal default configuration (use internal zip compression and uncompression) under 4.51.

Anyone experienced the same problem? Is there a way to recover my files? Can somebody help me with this?
Thanks in advance

Pat

[Wilhelm M.]

Welcome to the board!

I cannot explain your problem, but if you only want to recover your files the most simple thing to do is to install the old version of TC in parallel to the new one. This is generally no problem.

The only problem that could occur is the location of your ini-files. You can find that out in TC by selecting Help/About TC. At the bottom of the window the ini files are named. If wincmd.ini and wcx_ftp.ini are in the windows directory, they are possibly overwritten by the additionally installed version - but I'm not shure about that. When the installation programme asks about the location of the ini files then simply select the programme folder for the "new" installation (i.e. the re-installed old version). I would also make a backup of the ini files so that you can always revert to present situation.

[karlchen]

I assume the problem may be this:

• Inside T.C. V4.51 the original wcmzip32.dll was replaced by the enhanced wcmzip32.dll which supports encryption/decryption.
• When T.C. 6.55 was installed on a new harddisk, it, of course, came with the original wcmzip32.dll which cannot handle password protected ZIP-files.

The main issue now might be to find a valid download link for the enhanced wcmzip32.dll, because it seems that none of the download addresses given in this thread offer the file any longer. - Hm, I assume Clo's link may still work.

In case the problem is really a forgotten password, hm, then no enhanced version of wcmzip32.dll will be able to fix it.

Karl

[Clo]

2karlchen

Hello Karl !

• I thought so too, but not sure it be the issue…

• Anyway, yes, the link from my download page is valid still !

 VG
Claude
Clo

[Lefteous]

During the TC 7 alpha test I suggested that TC should support a renamed encrypted ZIP library. If the renamed library is found it's used instead of the default one. The problem would be solved once and for all. What do other users think?

[karlchen]

Thanks, Clo,

for confirming you still offer this valuable file.
I could not check because at the moment access to private webspaces is blocked from my current location.

Actually, I am not too sure the problem really is crypto-wcmzip32.dll vs original wcmzip32.dll. Because this will only affect ZIP-archives, not ACE or RAR or did I misunderstand something?

Karl

[patrick2]

I was wrong, the previous version was 6.01, so after installing again this version, the internal zip recognized my password.
Thanks for your help.

Pat

[Hacker]

Well, the question is, why did the decompresison not work in any of the other mentioned programs?

WinRAR 3.0
Pkunzip 2.50
Pkunzip 2.04
WinACE 2.5

Roman

[ghisler(Author)]

He probably had an ecryption dll modified by someone else, who had added non-standard keys...