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     Interrupt 21h──File Operation Functions (FCB)
 
     You can perform all the functions below more easily with functions
     available in DOS 2.0 and later. The services below are documented
     so you can analyze code written for earlier version of DOS.
 
     Function     Name
 
     0Fh          Open File
     10h          Close File
     11h          Find First File
     12h          Find Next File
     13h          Delete File
     16h          Create File
     17h          Rename File
     23h          Get File Size
     29h          Parse Filename
 
     See also: FCB description
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