Int 21 Fn 68 - DOS 3.3+ - "fflush" - Commit File [D] 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 AH=59h) See Also: AX=5D01h,AH=6Ah,INT 2F/AX=1107h