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  Description:  IOCTL: Check If Block Device Is Remote     DOS 3.1 Only
 
  Checks whether the specified block device is local (attached to the com-
  puter running the program) or remote (redirected to a network server).
 
  Input                                  Output
  ═══════════════════════════            ══════════════════════════════
  AH=44H                                 If function successful
  AL=09H                                 Carry flag=clear
  BL=drive number (0=default,            DX=device attribute word
      1=A, 2=B, etc.)                       bit 12=0 if drive is local
                                                   1 if drive is remote
                                         If function unsuccessful
                                         Carry flag=set
                                         AX=error code
                                    -♦-