{
 "id": "microsoft-kwaj-installation-compression",
 "name": "Microsoft KWAJ installation compression",
 "category": "archive",
 "identifiers": {
  "mime": [
   "application/x-ms-compress-kwaj"
  ],
  "wikidata": [
   "Q105850885"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "4b57414a88f027d1",
    "notes": "File Formats Wiki"
   },
   {
    "offset": 0,
    "hex": "4b57414a88f027"
   }
  ],
  "puid": [
   "fmt/469"
  ],
  "signatures": [
   {
    "name": "MS DOS Compression format (KWAJ)",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "4b57414a88f027d1"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "The MS-DOS compression format uses the LZSS algorithm to compress a single file into another single file, replacing the last character in the filename with an underscore. It is implemented via the MS-DOS commands COMPRESS.EXE and EXPAND.EXE.",
 "projects": [
  {
   "name": "File Formats Wiki",
   "url": "http://fileformats.archiveteam.org/wiki/Microsoft_KWAJ_installation_compression",
   "kind": "wiki"
  },
  {
   "name": "PRONOM fmt/469",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/469",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q105850885",
   "url": "https://www.wikidata.org/wiki/Q105850885",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "ffw",
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-24",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "tools": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}