INT 21 - DOS 3.3+ - "FFLUSH" - COMMIT FILE AH = 68h BX = file handle Return: CF clear if successful all data still in DOS disk buffers is written to disk immediately, and the file's directory entry is updated CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) SeeAlso: AX=5D01h,AH=6Ah,INT 2F/AX=1107h