std::string CUtils::toUtf8(const std::wstring &str)
{
  std::string ret;
  int len = WideCharToMultiByte(CP_UTF8, 0, str.c_str(), str.length(), NULL, 0, NULL, NULL);
  if (len > 0)
  {
    ret.resize(len);
    WideCharToMultiByte(CP_UTF8, 0, str.c_str(), str.length(), &ret[0], len, NULL, NULL);
  }
  return ret;
}

std::wstring intermediate = CT2W(filepath);
std::string sOtherFilePath = CUtils::toUtf8(intermediate);