DOS ain't dead

Released 2007-10-24.

"Some bugs were fixed."

Home page: http://www.7-zip.org/
Downloads: http://sourceforge.net/project/showfiles.php?group_id=14481

> "Some bugs were fixed."

It's no wonder 7-Zip is so popular with changes like this. Pure genius!

> It's no wonder 7-Zip is so popular with changes like this. Pure genius!

Calculate back how many bugs must have been in 7-ZIP 4.2xx

But it worked for me ...

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This is a LOGITECH mouse driver, but some software expect here
the following string:*** This is Copyright 1983 Microsoft ***

(from Steve):
> Michael Kostylev has a DJGPP compile of p7zip 4.44 (1 April 2007).
>
> Website: http://mik.mkw.ru/dos-stuff/p7z444b.zip

P.S. The file 7ZA.EXE included is packed with UPX 2.03. Well, we all (now) know that later UPX versions (e.g. latest 3.01) support LZMA from 7-Zip. So, a quick upx -d 7za.exe && upx --ultra-brute 7za.exe shrinks it from 753,448 bytes to 610,520 bytes (quite a difference!).

http://rugxulo.googlepages.com/p7z444b.zip (1208k, w/ new LZMA-packed .EXE)

Michael Kostylev has a DJGPP compile of p7zip 4.55 (1 November 2007).

Website: http://mik.mkw.ru/dos-stuff/
Download: http://mik.mkw.ru/dos-stuff/p7z455b.zip
Mirror: http://rugxulo.googlepages.com/p7z455b.zip (1,099k)

Hi,

i've installed the win version of 7zip : this can open and/or compress many kind of archive (.zip ,.arj .rar etc.)
The DOS version can do this ?

Thanks

Roberto iw2evk

> i've installed the win version of 7zip : this can open and/or compress
> many kind of archive (.zip ,.arj .rar etc.)
> The DOS version can do this ?

IIRC, yes, but not RAR or ARJ, only .tar.gz (-tgzip), .tar.bz2 (-tbzip2), .tar (-ttar), .zip (-tzip), and the default 7-Zip (.7z) format.

RAR is shareware, but ARJ (shareware) is free for non-commercial use (I think). UNRAR and UNARJ are free/open source, though.

http://www.rarlabs.com
http://www.arjsoftware.com

> i've installed the win version of 7zip : this can open and/or compress
> many kind of archive (.zip ,.arj .rar etc.)
> The DOS version can do this ?

The DOS version is based on p7zip, which is a port of the standalone 7za.exe, not of 7z.exe. 7za packs and unpacks 7z, ZIP, GZIP, BZIP2 and TAR files, and for Z files it unpacks only.

There a few more notes I should mention:

7-Zip (7ZA.EXE or P7ZIP.EXE) can now choose a filetype based on .ext of the archive being created. So, you don't have to use -tzip or -t7z or -tbzip2 but instead "7za a blah.7z *" or "7za a blah.zip *" or "7za a blah.bz2 blah.tar" instead.

P.S. For .7z format, defaults are (according to 7-zip.chm from Win32 cmdline version) -mx=5 -ms=on -m0=lzma. So, you only need to use "-mx=9" if you want max compression, or "-m0=ppmd" if you'd rather use a different algorithm (but PPMD requires more memory).

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Know your limits.h

> i've installed the win version of 7zip : this can open and/or compress
> many kind of archive (.zip ,.arj .rar etc.)

7-Zip (Win32) can create ("compress") only: 7z, ZIP, GZIP, BZIP2 and TAR.
Free UNRAR for DOS is at http://www.rarlab.com/rar_add.htm.

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Forum admin

Unfortunately, p7zip (or 7ZA + HXRT) refuses to let "-w" (temporary work dir) work b/c of LFN issues (tries to make "blah.zip.tmp" or something dumb like that). Is there a possible way to make HXRT translate filenames like this (which seem fairly common in the Windows world) to 8.3 ?