壓縮/解壓縮軟件 7-Zip

7Zip 是一款壓縮/解壓縮的開源軟件。

壓縮：通過LZMA算法將文件壓縮成7z格式的文件。同時它還可以將文件壓縮成ZIP, GZIP, BZIP2 and TAR等格式。

解壓縮：除了解壓7z格式壓縮文件外，它還可以解壓RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS的壓縮文件。

目前支持的操作系統有：Windows, Linux, FreeBSD, Mac OS X, and BeOS.

當前版本為:

7-Zip 9.25 Alpha 改進內容：

- LZMA decompression speed was improved
- "compress and send to email" code was improved to support more email clients
- New command "h" to calculate hash values CRC-32, CRC-64, SHA-256 or SHA-1 for files on disk
- New -spf switch to store full file paths including drive letter to archive. If you use that switch with extract command, please check that file names in archive are correct
- Some bugs were fixed
- NOTE: New -spf switch feature is for testing only! That code is still under development. Please write about any bugs there. It stores full file paths to archive only if you specify these full paths in command

7-Zip for 32-bit Windows:
http://dl.7-zip.org/7z925.exe
or
http://dl.7-zip.org/7z925.msi

7-Zip for 64-bit Windows x64:
http://dl.7-zip.org/7z925-x64.msi