delphi - IShellLibary を保存する方法

Question

次のコードは、Libaries にフォルダーを追加しますが、保存はしません。

function SHAddFolderPathToLibrary(const plib: IShellLibrary;
  pszFolderPath: LPCWSTR): HResult;
{ Corrected per discussion at StackOverflow }
var
  psiFolder: IShellItem;
begin
  Result := SHCreateItemFromParsingName(pszFolderPath, nil, IID_IShellItem,
    psiFolder);
  if Succeeded(Result) then
  begin
    Result := plib.AddFolder(psiFolder);
  end;
end;

function AddFolderToLibrary(AFolder: string): HRESULT;
{ Add AFolder to Windows 7 library. }
var
  plib: IShellLibrary;
begin
  Result := CoCreateInstance(CLSID_ShellLibrary, nil, CLSCTX_INPROC_SERVER,
    IID_IShellLibrary, plib);
  if SUCCEEDED(Result) then
  begin
    Result := SHAddFolderPathToLibrary(plib, PWideChar(AFolder));
  end;
end;

function RemoveFolderFromLibrary(AFolder: string): HRESULT;
{ Remove AFolder from Windows 7 library. }
var
  plib: IShellLibrary;
begin
  Result := CoCreateInstance(CLSID_ShellLibrary, nil, CLSCTX_INPROC_SERVER,
    IID_IShellLibrary, plib);
  if SUCCEEDED(Result) then
  begin
    Result := SHRemoveFolderPathFromLibrary(plib, PWideChar(AFolder));
  end;
end;