{"id":"image-vnd-fst","mimeType":"image/vnd.fst","name":"FAST Search \u0026 Transfer Image","shortName":"FST-Image","category":"Legacy \u0026 Proprietary","extensions":[".fst"],"description":"The image/vnd.fst MIME type represents a proprietary image format developed by FAST Search \u0026 Transfer ASA, a Norwegian technology company founded in 1997 (and later acquired by Microsoft). Registered with IANA in June 2000 by video/image compression researcher Arild Fuldseth, the format was utilized within FAST's early proprietary multimedia streaming and enterprise indexing technologies. Today, the format is entirely obsolete and largely undocumented in the public domain.","seo":{"title":"image/vnd.fst MIME Type | Developer Reference for FAST Image","description":"Complete reference for the image/vnd.fst MIME type: FAST Search \u0026 Transfer history, IANA registration, and legacy media streaming.","faqs":[{"question":"What is an image/vnd.fst file?","answer":"It is a proprietary image file created by FAST Search \u0026 Transfer ASA, a Norwegian tech company from the late 1990s. The format was designed for their early multimedia compression, indexing, and streaming pipelines before the company pivoted entirely to enterprise search."},{"question":"Can I open an image/vnd.fst file today?","answer":"No. The format is completely obsolete and was never widely adopted outside of FAST's internal enterprise ecosystems. Modern web browsers, operating systems, and image viewers do not support decoding it."},{"question":"Who created the FST image format?","answer":"It was developed by researchers at FAST Search \u0026 Transfer ASA (notably Arild Fuldseth) and officially registered with IANA in June 2000. FAST's search technology was later acquired by Microsoft in 2008 to power Microsoft SharePoint's search features."}]},"index":{"compression":["Proprietary"],"browserSupport":{"score":1,"label":"None"},"commonUses":["Historical FAST Enterprise Search Indexing","Legacy Proprietary Multimedia Streaming (late 1990s)","Internal Media Transmission"]},"technical":{"magicBytes":{"hex":"Unknown (Proprietary)","ascii":"Unknown"},"container":"Proprietary FAST Container","compressionAlgorithm":["Unknown (Proprietary FAST encoding)"],"colorDepth":["Unknown"],"transparency":false,"animation":false,"metadata":{"exif":false,"xmp":false,"iccProfile":false},"alphaChannel":false,"progressiveLoading":false,"hdrSupport":false},"history":{"developer":"FAST Search \u0026 Transfer ASA (Arild Fuldseth)","released":"2000","specification":"Proprietary (Registered with IANA on 2000-06-20)"},"browserSupport":{"chrome":false,"chromeVersion":"None","firefox":false,"firefoxVersion":"None","safari":false,"safariVersion":"None","edge":false,"edgeVersion":"None","internetExplorer":false},"softwareSupport":[{"name":"Legacy FAST Search Servers","logo":""}],"conversion":{"convertTo":[],"convertFrom":[]},"developer":{"httpHeaders":[{"header":"Content-Type","value":"image/vnd.fst"}],"htmlAccept":"None","fileDetection":["Due to its obscurity and proprietary closed-source nature, standard file sniffers lack magic byte definitions for this format.","Identification relies entirely on string matching the .fst extension against MIME registries, though .fst is occasionally used by other unrelated software applications."]},"prosCons":{"pros":["Historically served as an optimized, compressed format for FAST's early multimedia and live streaming engines over constrained late-1990s bandwidth"],"cons":["Completely obsolete and non-functional in modern software ecosystems","Undocumented, closed-source binary structure with zero support in modern image processing libraries","Shares its file extension with several other distinct file types (such as FL Studio state files or FAST Search dictionaries), leading to easy misidentification"]},"specifications":{"url":"https://www.iana.org/assignments/media-types/image/vnd.fst","rfc":"","mimeAliases":[]},"developerSnippets":{"python":"import magic\n# Libmagic does not contain definitions for this proprietary streaming format and will likely fall back to 'application/octet-stream'\nprint(magic.from_file('legacy_media.fst', mime=True))","nodejs":"const mime = require('mime');\n// Standard JS MIME libraries map .fst to image/vnd.fst purely based on the historical IANA registry string match\nconsole.log(mime.getType('legacy_media.fst')); // Likely outputs 'image/vnd.fst'","go":"import \"net/http\"\n// The standard net/http library cannot detect FST files internally via byte sniffing. You must rely on extension string matching.","php":"$mime = mime_content_type('legacy_media.fst');\necho $mime; // Standard server environments will map this to application/octet-stream"},"relatedFormats":[]}