Working with ZIP files

7ziplogo Letter-R ecently my dad contacted me regarding a zip file.  A friend of his emailed him a .zip file, but every time he tried to open the file his trial version of WinZip loaded reporting that the his trial time had expired and he would need to purchase the software if he wanted to open this file.


So, like any good resourceful dad would do… he turned to his technology resourceful son… “What do I do now son?”. 


There are many different compression software utilities out there and my dad not being a technology geek like my self may not know all the options.  There are quite a few…  PK-Zip (the original), WinZip, WinRAR, GZIP and TAR to name a few.  But for this post, we will mention 7-ZIP


7-ZIP is a free and open-source program that can do almost everything the other guys can do.  Here are a few features.


  • High compression ratio in new 7z format with LZMA compression
  • Supported formats:
    • Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
    • Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.
  • For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
  • Strong AES-256 encryption in 7z and ZIP formats
  • Self-extracting capability for 7z format
  • Integration with Windows Shell
  • Powerful File Manager
  • Powerful command line version
  • Plugin for FAR Manager
  • Localizations for 74 languages
  • Command Line interface.


This tool works quite well.  It even has a command line interface that comes in handy for use with backup utilities such as Cobian Backup @


So if you need a free utility to unzip .zip files that you download or get from a friend, or if you want to compress multiple files into one file, like WinZip, but for free… this could be the tool for you.


Download 7-ZIP here.

2 thoughts on “Working with ZIP files

  1. Hello peeps, I have a hasty confusion… I notice u are running blogengine from ms. I’m using a panic and anxiety disorder blog on wordpress and i am willing to switch. Does my server need asp support?? Thanks, Debra Trotter

  2. Yes, BlogEngine.Net requires ASP.NET. Though you can run it with a SQL Server databasel, this is NOT required… it runs quite well with default XML data provider.

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