[wolfran_hack]

Solucionado:

Código Delphi [-]
procedure SaveListViewToFile(AListView: TListView; sFileName: string);
var
  idxItem, idxSub, IdxImage: Integer;
  F: TFileStream;
  pText: PChar;
  sText: string;
  W, ItemCount, SubCount: Word;
  MySignature: array [0..2] of Char;
begin
  // Inicio
  with AListView do
  begin
    ItemCount := 0;
    SubCount  := 0;
    //****
    MySignature := 'LVF';
    //  ListViewFile
    F := TFileStream.Create( ExtractFilePath( Application.ExeName ) + 'NombredelArchivo.XXX', fmCreate or fmOpenWrite);
    F.Write(MySignature, SizeOf(MySignature));

    if Items.Count = 0 then
      // List is empty
      ItemCount := 0
    else
      ItemCount := Items.Count;
    F.Write(ItemCount, SizeOf(ItemCount));

    if Items.Count > 0 then
    begin
      for idxItem := 1 to ItemCount do
      begin
        with Items[idxItem - 1] do
        begin
          // Guardamos los SubItems
          if SubItems.Count = 0 then
            SubCount := 0
          else
            SubCount := Subitems.Count;
          F.Write(SubCount, SizeOf(SubCount));
          // Guardamos el Index
          IdxImage := ImageIndex;
          F.Write(IdxImage, SizeOf(IdxImage));
          // Guardamos la Caption
          sText := Caption;
          w     := Length(sText);
          pText := StrAlloc(Length(sText) + 1);
          StrPLCopy(pText, sText, Length(sText));
          F.Write(w, SizeOf(w));
          F.Write(pText^, w);
          StrDispose(pText);
          if SubCount > 0 then
          begin
            for idxSub := 0 to SubItems.Count - 1 do
            begin
              // Guardamos los Items y SubItems
              sText := SubItems[idxSub];
              w     := Length(sText);
              pText := StrAlloc(Length(sText) + 1);
              StrPLCopy(pText, sText, Length(sText));
              F.Write(w, SizeOf(w));
              F.Write(pText^, w);
              StrDispose(pText);
            end;
          end;
        end;
      end;
    end;
    F.Free;
  end;
end;