7-Zip 9.20

7-Zip is a file archiver with a high compression ratio.

The main features of 7-Zip are:

  • High compression ratio in new 7z format with LZMA compression
  • Supported packing / unpacking formats: 7z, ZIP, GZIP, BZIP2 and TAR
  • Supported formats for unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.
  • Compression ratio for ZIP and GZIP formats: 2-10 % better than the ratio provided by PKZip and WinZip
  • Strong AES-256 encryption in 7z and ZIP formats
  • Self-extracting capability for 7z format
  • Integration with Windows Shell
  • Powerful File Manager
  • Powerful command line version
  • Plugin for FAR Manager
  • Localizations for 74 languages

Download: 7-Zip 9.20 | 1 MB (Freeware)

Thanks to Copernic for this submission in Back Page News.

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18 Comments

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The last time I tried this, the installer didn't even bother associating .7z files with the software which seemed like a really lame thing to overlook. Have they fixed that yet?

TCLN Ryster said,
The last time I tried this, the installer didn't even bother associating .7z files with the software which seemed like a really lame thing to overlook. Have they fixed that yet?

you can make it associate files with it by doing this...

Run 7-zip as administrator and then goto 'Tools > Options > System' tab. the rest should be pretty straight forward

p.s. i got it associated with .7z .rar and .zip myself.

ThaCrip said,

you can make it associate files with it by doing this...

Run 7-zip as administrator and then goto 'Tools > Options > System' tab. the rest should be pretty straight forward

p.s. i got it associated with .7z .rar and .zip myself.


I never said I couldn't associate files myself. As it happens I just used the windows file association feature and chose the file manager exe from the 7zip folder.

But why on Earth doesn't it associate .7z files with itself? That just seems lazy, pointless and self-defeating. Surely if you double click on a .7z file, you want it to open in 7-Zip. This oversight/illogical omission alone puts me off using this product.

TCLN Ryster said,

I never said I couldn't associate files myself. As it happens I just used the windows file association feature and chose the file manager exe from the 7zip folder.

But why on Earth doesn't it associate .7z files with itself? That just seems lazy, pointless and self-defeating. Surely if you double click on a .7z file, you want it to open in 7-Zip. This oversight/illogical omission alone puts me off using this product.

you make a good point as it makes perfect sense for a program that's primarily affiliated with the 7-zip format to associate with the .7z extension.

but overall something like that is surely not enough to detract from a otherwise solid/simple application

Updated but I still have an annoying bug, I can't view pics files without extracting them, no problem at at all with other programs such as winrar or winzip. Plus 7zip needs a total restyle (although i know there are already programs which aim at changing 7zip appearence)IMO, not to mention that the setup should be a little bit more advanced while installing, giving the possibility to set file associations right away without executing as administrator the program later and change that. =) I'll probably go back to Winrar 4 anyway.

SuperZod said,
Updated but I still have an annoying bug, I can't view pics files without extracting them, no problem at at all with other programs such as winrar or winzip. Plus 7zip needs a total restyle (although i know there are already programs which aim at changing 7zip appearence)IMO, not to mention that the setup should be a little bit more advanced while installing, giving the possibility to set file associations right away without executing as administrator the program later and change that. =) I'll probably go back to Winrar 4 anyway.

who actually views picture in a compressed file anyways? ... especially considering most .jpg type files are not worth compressing to begin with because of the very little space saved.

ThaCrip said,

who actually views picture in a compressed file anyways? ... especially considering most .jpg type files are not worth compressing to begin with because of the very little space saved.

Who actually cares about edge cases anyway? God forbid you should ever download an email attachment full of pictures that was zipped into a single file for convenience. No biggie.

ryushan said,

Who actually cares about edge cases anyway? God forbid you should ever download an email attachment full of pictures that was zipped into a single file for convenience. No biggie.

simply extract the files to the PC and view?

because it can't take more than a handful of seconds to do that.

eilegz said,
a HUGE number version change... next version should 14 or 15 lol

a quote from there site...

Now there are two main versions of 7-Zip:

* 7-Zip 9.20 - it's revision 20 of 7-Zip 9 (started in 2009)
* 7-Zip 4.65 - it's revision 65 of 7-Zip 4 (started in 2004)

eilegz said,
a HUGE number version change... next version should 14 or 15 lol

Actually next version will be 10 or 11 depending on when he starts to work on it (2010 or 2011).
Work on version 4.xx had started in 2004 and continued until 2009 when work on version 9.xx started.

ill be damned. finally a final version after well over a year which was previously v4.65 as the last stable version which no longer appears on the website from the looks of things. but i am going to update to this and see what happens as i would not be surprised if certain things compress better with the newer version