In PBWin10, CONTROL SEND is not aware if %UNICODE = 1, this resulting in clipped uncode characters if using it with for example WSTRINGZ and messages like %LB_ADDSTRING or %CB_ADDSTRING, and with messages like %CB_GETLBTEXT or %LB_GETTEXT the result becomes a bunch of chinese-looking characters.

If %UNICODE = 1 is set and goal is to get/set text, use SendMessage instead, because then SendMessageW will be used with correct result. See also discussion and example at