function RunDOS(const CommandLine: String): String;
procedure CheckResult(b: Boolean);
begin
  if not b then
    Raise Exception.Create(SysErrorMessage(GetLastError));
end;
var
  HRead, HWrite: THandle;
  StartInfo: TStartupInfo;
  ProceInfo: TProcessInformation;
  b: Boolean;
  sa: TSecurityAttributes;
  inS: THandleStream;
  sRet: TStrings;
begin
  Result := '';
  FillChar(sa, sizeof(sa), 0);
  // 设置允许继承，否则在NT和2000下无法取得输出结果
  sa.nLength := sizeof(sa);
  sa.bInheritHandle := True;
  sa.lpSecurityDescriptor := nil;
  b := CreatePipe(HRead, HWrite, @sa, 0);
  CheckResult(b);

  FillChar(StartInfo, sizeof(StartInfo), 0);
  StartInfo.cb := sizeof(StartInfo);
  StartInfo.wShowWindow := SW_HIDE;
  // 使用指定的句柄作为标准输入输出的文件句柄,使用指定的显示方式
  StartInfo.dwFlags := STARTF_USESTDHANDLES or STARTF_USESHOWWINDOW;
  StartInfo.hStdError := HWrite;
  StartInfo.hStdInput := GetStdHandle(STD_INPUT_HANDLE); // HRead;
  StartInfo.hStdOutput := HWrite;

  b := CreateProcess(nil, // lpApplicationName: PChar
    PChar(CommandLine), // lpCommandLine: PChar
    nil, // lpProcessAttributes: PSecurityAttributes
    nil, // lpThreadAttributes: PSecurityAttributes
    True, // bInheritHandles: BOOL
    CREATE_NEW_CONSOLE, nil, nil, StartInfo, ProceInfo);

  CheckResult(b);
  WaitForSingleObject(ProceInfo.hProcess, INFINITE);

  inS := THandleStream.Create(HRead);
  if inS.Size > 0 then
  begin
    sRet := TStringList.Create;
    sRet.LoadFromStream(inS);
    Result := sRet.Text;
    sRet.Free;
  end;
  inS.Free;

  CloseHandle(HRead);
  CloseHandle(HWrite);
end;