SQX

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SQX
File extension: .sqx
Developed by: Sven Ritter
Type of format: Data compression

The SQX-format is an open and free archive format. It can be used in one's own applications free of charge (license and royalty free). The homepage provides an SDK, with source and compiled DLLs which are likewise unemcumbered by license costs.

The SQX archiver is a high performance file archiver. It was developed because the specifications for most other archivers are not fully available to third-parties.

  • Main compressor is a LZH variant supporting LZ dictionaries from 32K up to 4096K
  • Ultra compression mode with dictionary up to 32768K
  • Several compressor extensions to handle multimedia data
  • High-speed audio (WAV) compressor
  • Special compressor stage for IA32 executables
  • Solid and non-solid archives support
  • Strong 128/256-bit AES encryption (Rijndael) for file data
  • Independent encryption of archive directories
  • Internal and external data recovery records
  • Full support for 64-bit file systems (the size of archives and archive volumes is limited only by the OS)
  • Support for digitally signed archives (envelope up to 512 bit, encrypted with 2 * 1024 bit)
  • SFX modules for DOS (32-bit PMode), Win32 and x64. All SFX modules support multi-volume archives
  • Archive and file comments

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