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ALZip

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ALZip
Developer(s)ESTsoft
Initial release1999
Stable release
12.22[1] Edit this on Wikidata / 7 February 2024
Written inMFC
Operating systemWindows 7 or later
Available inKorean, English, etc.
TypeFile archiver
LicenseShareware/Freeware(only non-commercial use)
Websitealtools.co.kr

ALZip is an archive and compression utility software application developed by ESTsoft for Microsoft Windows that can unzip forty different archive file formats. ALZip can also archive files into eight different archive formats. Introduced in ALZip version 8[citation needed], their own proprietary ALZ and EGG archive formats can be used, which supports Unicode, compression and other features.

History

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ALZip was developed in 1999 as an internal application by the South Korean software company ESTsoft in response to employees' frustration using the English interface in WinZip.

The Korean interface was immediately well received[2] and later that year, ALZip was publicly released[3][4][5] as freeware.[6] In just over a year, ALZip became the most popular archiver program in South Korea[7] and by December 2001, was the top downloaded software[8][9] in the country. By 2004, it had reached a 70% market share in South Korea.[10] The popularity of the software and the ALZ and EGG archive format played a large role in earning ESTsoft a place in the Digital Innovation Awards Top 100 Companies in South Korea[11] with the software taking special mention.

The first English version was released in 2002. Since then, support for over 20 languages has been added.[citation needed]

Version 11.07 is available through Microsoft Store.[12]

Licensing changes

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ALZip was originally released as pure freeware. In October 2001 it changed to free for home use with government usage requiring a software license. In April 2002, a business license was also introduced[5] for commercial usage.[13] Licensing was based on the honor system, and there were no nag screens.

With the version 7 release, the license was changed from freeware to adware, displaying downloaded banner ads. Beginning on December 1, 2008, all new releases are shareware requiring a paid license[14] except in its original Korean language, which requires no licensing fee.

With version 8.51 from 22 August 2012, ALZip changed the license so that it can be licensed freely. On the download page of ALZip is a serial number to copy and paste when you start the program, in order to have the license for the software free of charge.[15]

Naming and mascots

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The name "ALZip" was chosen as the "AL" part is a transliteration from the program's Korean name "aljip" (Hangul: 알집), literally EggZip. Other ALTools feature similar egghead cartoon characters as mascots for each program.

Additionally, ALZip integrates into the "New Folder" function of Windows Explorer, where new folders are created with the option of using custom icons and names.[5]

File format controversy

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In 2003, there was a controversy over ALZip's own compression file format ALZ when a developer of another Korean compression utility, "빵집," insisted that ALZip users were forced to use the ALZip archiver when decompressing ALZ files. He also stated that ESTsoft does not offer decompression libraries, and that third-party archiver developers have had to use reverse engineering to develop their own algorithms.[16]

EGG format and ALZ Algorithm

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The EGG format is used to apply multiple different compression algorithms, choosing the algorithm based on the file extension. For example, it may use Bzip2 to compress .txt files, while using Deflate for files with a .exe extention. For .com or .sys files, ALZip uses the ALZ algorithm.

The ALZ algorithm is slower but has a high compression ratio. It has a faster compression rate than the Deflate algorithm used in the ZIP format, and is comparable to the LZMA algorithm of 7zip.

Reverse engineering revealed similarities between it and LZMA. It has been confirmed that LZ77 is used.[citation needed]

See also

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References

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  1. ^ "알집 v12.22 출시!". 7 February 2024. Archived from the original on 11 February 2024.
  2. ^ Jeong, Jong Oh (November 1999). "HOW: 한글 지원 국산 압축 유틸리티 3종". HowPC (in Korean): 308–311.
  3. ^ Lee, J. N. (23 August 1999). 모든 압축파일 자유자재로 풀어줍니다. Yonhap News (in Korean). Yonhap.
  4. ^ Yoon, H. J. (30 August 1999). 압축유틸리티 '알집' 발표. 전자신문 (in Korean). Chunjashinmun.
  5. ^ a b c Wi, Yoonhee; Ji, Hyunjung (February 2003). "PC 유틸리티는 쉽고 편하게, 알집에서 알툴즈까지". Microsoftware (in Korean) (2): 152–155.
  6. ^ Han, Sujin (November 2002). "CEO of the Month: 국산 소프트웨어의 자존심". Popular Science (in Korean) (11): 90.
  7. ^ "Most used compression program poll". 9 February 2001. Archived from the original on 13 August 2002. Retrieved 27 February 2001.
  8. ^ Maeilkyungjae IT Internet (2001-12-03)
  9. ^ Choi, Yeonjin (19 December 2001). "2001 디지탈 이노베이션 大賞 수상업체". Hankooki (in Korean). Hankook Ilbo.
  10. ^ "Korea Software Industry Association" (in Korean). 1999. Archived from the original on 2 April 2016. Retrieved 30 October 2006.
  11. ^ 디지탈 이노베이션 大賞. Hankook Ilbo (in Korean). 28 November 2001. p. 2.
  12. ^ "Get ALZip". Microsoft Store. Archived from the original on 22 January 2021. Retrieved 15 September 2020.
  13. ^ "Program Deliberation and Mediation Committee" (in Korean). June 2003. Archived from the original on 22 June 2006.
  14. ^ "ALTools Free PC Utilities". Archived from the original on 20 December 2008. Retrieved 24 December 2008.
  15. ^ "ALTools News – New product releases, updates, company info, events, and other points of interest at ALTools". altools.com. Archived from the original on 23 February 2014. Retrieved 12 January 2022.
  16. ^ "중앙대 국문학과 > 칼럼게시판 > 알집 alz 포맷의 비밀". Archived from the original on 3 July 2009. Retrieved 19 September 2009.
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