INT 21 - DOS 4.0+ - COMMIT FILE AH = 6Ah BX = file handle Return: CF clear if successful AH = 68h CF set on error AX = error code (06h) (see #01680 at AH=59h/BX=0000h) Note: identical to AH=68h in DOS 5.0-6.0; not known whether this is the case in DOS 4.x SeeAlso: AH=68h