code: public Map<String, String> readStringValues(HKey hk, String key) throws RegistryException {
  		return readStringValues(hk, key, null);
  	}
docs: Read value(s) and value name(s) form given key
  
  @param hk the HKEY
  @param key the key
  @return the value name(s) plus the value(s)
  @throws RegistryException when something is not right