winrar

RAR is being developed by Eugene Roshal. The version 3 compression uses 4 MB sliding window LZ or PPMII (PPMd by Dmitry Shkarin) for general purpose compression with additional data type specific algorithms. [1]

RAR is a powerful tool allowing you to manage and control archive files. Console RAR supports archives only in RAR format, the names of which usually have a ".rar" extension. ZIP and other formats are not supported. Windows users may install GUI RAR version - WinRAR, which is able to process many more archive types.

RAR features include:

• Highly sophisticated, original compression algorithm
• Special compression algorithms optimized for text, audio, graphics data, 32 and 64-bit Intel executables
• Better compression than similar tools, using 'solid' archiving
• Authenticity verification (registered version only)
• Self-extracting archives and volumes (SFX)
• Ability to recover physically damaged archives
• Locking, password, file order list, file security & more ...

[1] UnRAR source code http://rarlabs.com

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