Int 2F Fn AF16  - Windos V2.11 - Get Simple Truename                       [O]

   AX = AF16h
   DS:SI -> path to be canonicalized
   ES:DI -> buffer for canonicalized filename/pathname

Return: CF clear if successful
       AX = 0000h
   CF set on error
       AX = DOS error code (see #1366 at INT 21/AH=59h/BX=0000h)
Desc:  partially canonicalize a path, omitting SUBST, JOIN, ASSIGN, and
     network redirections

See Also: AX=AF00h"WinDOS",INT 21/AH=60h