# UNAR6: reconstructing the AR6 archive format

> UNAR6 reconstructs the AR6 archive format used by the Manažer M602 DOS file manager from observed archives. Its format notes specify record headers, directory entries, checksums and PKWARE DCL compression, while C, Pascal and Python implementations list, test and extract archive contents.

- Type: Case study
- Targets: App
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/mariolacko/unar6>
- Primary source: <https://github.com/mariolacko/unar6/blob/b11244f8bdcef20307ab402891fab81b577eaa7f/README.md>
- Catalog page: <https://awesomerea.org/resources/unar6-case/>
- Record JSON: <https://awesomerea.org/resources/unar6-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/unar6-case/index.md)

## Requirements & limits

- **Prerequisites:** AR6 archives are needed as inputs; the repository omits test archives and extracted samples.
- **Prerequisites:** The C and Pascal versions target Turbo C 3.0 and Turbo Pascal 6.0; Python is the modern reference implementation.
- **Testing evidence:** The author reports correct decoding with CRC and size checks for the samples examined.
- **License:** MIT license.

## Primary sources

1. <https://github.com/mariolacko/unar6/blob/b11244f8bdcef20307ab402891fab81b577eaa7f/README.md>
2. <https://github.com/mariolacko/unar6/blob/b11244f8bdcef20307ab402891fab81b577eaa7f/AR6_FORMAT.en.md>
3. <https://github.com/mariolacko/unar6/blob/b11244f8bdcef20307ab402891fab81b577eaa7f/LICENSE>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.