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{{ safesubst:#invoke:Unsubst||$N=Refimprove |date=__DATE__ |$B= {{#invoke:Message box|ambox}} }} Long filename (LFN) support is Microsoft's backward compatible extension of the 8.3 filename (short filename) naming scheme used in Microsoft DOS. Long filenames can be more descriptive, including longer extensions common on other operating systems such as .jpeg, .tiff, .html, and .xhtml rather than specialized shortened names such as .jpg, .tif, .htm, or .xht. The standard has been common with FAT filesystems since its first implementation in Windows NT 3.5 of 1994.

To maintain compatibility with older operating systems, Microsoft formulated a method of generating an 8.3 filename from the long filename (for example, Microsoft.txt to MICROS~1.TXT) and associating it with the file.

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Long filename sections
Intro  Compatibility issues  VFAT LFN drivers  Other implementations   See also   References  External links  

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