7-Zip 15.05 Beta (32-bit)

7-Zip 是一套強大的壓縮軟體，除了支援許多常見的壓縮檔案外，它的操作簡單、快速、支援體中文顯示，在實際使用上，也提供了相當的彈性，讓我們在使用上，非常方便。 我們可以在它的設定畫面中，自定快顯功能的項目，像是在某個檔案上按滑鼠右鍵後，可以直接製作為壓縮檔、解壓縮或是先壓縮後郵寄，這些都是非常方便的功能。

• 支援Unicode。
• 輕量級壓縮軟體，不占空間。
• 可解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等壓縮檔。
• 可將檔案壓縮成GZIP, BZIP2, TAR, ZIP和7z。

- 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.