>        fwscanf(F, L"%ls", &str);

  Nenaudočiau nei "l", nei "&".
  Seno v6 builderio helpe rašo taip:

Format specifier  printf function  Unicode function
%c                narrow           wide
%C                wide             narrow
%hc               narrow           narrow
%hC               narrow           narrow
%lc               wide             wide
%lC               wide             wide
%s                narrow           wide
%S                wide             narrow
%hs               narrow           narrow
%hS               narrow           narrow
%ls               wide             wide
%lS               wide             wide

-- 
  saimhe