Int 21 Fn 3303  - Dos 4.0+ - Unused                                        [D]

   AX = 3303h

Return: nothing

Note:  this function and AX=3304h were intended to support a proposed
     code-page switching flag (using two of the ten reserved bytes in
     the DOS directory entry for codepage information); however, this
     function has always been a NOP in public releases of DOS and OS/2.
     See _DOS_Internals_ Chapter 2 for more information

See Also: AX=3304h