Archivers

7-Zip is an open source Windows utility for manipulating archives.

7-Zip Features:

• High compression ratio in new 7z format with LZMA compression
  
• Supported formats:
  
  
  
  • Packing and unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
    
  • Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS
    
  
  
• For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
  
• Self-extracting capability for 7z format
  
• Integration with Windows Shell
  
• Powerful File Manager
  
• Powerful command line version
  
• Plugin for FAR Manager
  
• Localizations for 63 languages
  

WinZip

WinZip is a quick and easy way to zip, unzip and encrypt files for data back-up and email transmission.

WinRAR

WinRAR is a powerful archive manager. It can backup your data and reduce size of email attachments, decompress RAR, ZIP and other files downloaded from Internet and create new archives in RAR and ZIP file format.