code: def _config_win32_search(self, search):
          
          # we call str() on search to convert it from unicode to ascii
          search = str(search)
          split_char = self._determine_split_char(search)
          search_list = search.split(split_char)
          for s in search_list:
              if not s in self.search:
                  self.search.add(dns.name.from_text(s))
docs: Configure a Search registry entry.