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7Zip – Zip software

While most people have heard of Winzip compression software, many don’t realise that you are supposed to pay for it.

Compression software allows you to a number of things:

  • package multiple files into a single file to make it easier to send to someone (via email, the web or disc).
  • Chop up a single large file into multiple smaller files for easier transport that can be easily put back together again
  • Compress files so they take up less space (for emailing or archiving)
  • Secure files when used with encryption (most compression software supports some level of encryption)

7Zip is a free open source alternative to commercial compression tools that can read and open most archive formats as well as create “.zip” files and also use its own native open protocol compression format, “.7z” which is more efficient than “.zip”. It supports virtually uncrackable 256bit AES encyption. 7zip can be downloaded from http://www.7-zip.org/ in both 32bit and native 64bit versions. It integrates into the “right click” menu in Windows allowing files to be compressed and uncompressed easily. It can also be accessed programmatically allowing scripts to compress or decompress files automatically (I often use it from a VBScript to compress web server logs and SQL Server backup files to minimise space)

Posted in: Free Software