7-Zip 15.05 Beta (32-bit)

7-Zip.org - ( Open Source)

7-Zip allows for free to compress, decompress and encrypt any file or folder having a high compression ratio.

7-Zip is an archiving tool such as WinZip or IZArc , that can be choose to use because it is free.

The application can compress your files and folders so that they use less space on the hard disk. It is particularly able to compress a file with a high compression ratio, in order to obtain smaller files, easier to store or send. Its handling is very simple and does not require significant hardware resources.
The program is able to create archives in 7z format, TAR, gzip, bzip2 and zip. It supports reading formats like ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, squashfs, UDF, VHD, WIM, XAR and Z but for archive creation, it is limited to 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM.

7-Zip also allows to encrypt the documents, but also can create archives that can be unpacked without using the software.

It allows to create self-extracting files for easy retrieval for users who are sending the files.

The software have an encryption option too, requesting a password to encrypt a file. Only Zip and 7z formats support encryption. The encryption algorithm used is based on AES-256 to a certain robustness attempts to brute force attack encryption.

Title:: 7-Zip 15.05 Beta (32-bit)
File Size:: 1.0 MB
Requirements:: Windows 9x / 2000 / XP / Vista / Windows7 / Windows8
Language:: en-us
License:: Open Source
Date Added:: 15 Jun 2015
Publisher:: 7-Zip.org
Homepage:: http://www.7-Zip.org/
MD5 Checksum:: 2DAF1731A644116D0965C0CA4B51C082

- 7-Zip now uses new installer.
- 7-Zip now can create 7z, xz and zip archives with 1536 MB dictionary for LZMA/LZMA2.
- 7-Zip File Manager now can operate with alternate file streams at NTFS volumes via "File / Alternate Streams" menu command.
- 7-Zip now can extract .zipx (WinZip) archives that use xz compression.
- new optional "section size" parameter for BCJ2 filter for compression ratio improving. Example: -mf=BCJ2:d9M, if largest executable section in files is smaller than 9 MB.
- Speed optimizations for BCJ2 filter and SHA-1 and SHA-256 calculation.
- Console version now uses stderr stream for error messages.
- Console version now shows names of processed files only in progress line by default.
- new -bb[0-3] switch to set output log level. -bb1 shows names of processed files in log.
- new -bs[o|e|p][0|1|2] switch to set stream for output messages;
> o: output, e: error, p: progress line; 0: disable, 1: stdout, 2: stderr.
- new -bt switch to show execution time statistics.
- new -myx[0-9] switch to set level of file analysis.
- new -mmtf- switch to set single thread mode for filters.
- The BUG was fixed:
> 7-Zip didn't restore NTFS permissions for folders during extracting from WIM archives.
- The BUG was fixed:
> The command line version: if the command "rn" (Rename) was called with more than one pair of paths, 7-Zip used only first rename pair.
- The BUG was fixed:
> 7-Zip crashed for ZIP/LZMA/AES/AES-NI.
- The BUG in 15.01-15.02 was fixed:
> 7-Zip created incorrect ZIP archives, if ZipCrypto encryption was used.
> 7-Zip 9.20 can extract such incorrect ZIP archives.
- Some bugs were fixed.