Hello, if i want to read, write a key and set a value, does i only need to set KEY_WRITE, or does i need to set KEY_READ, KEY_WRITE and KEY_SET_VALUE? This questions is related to the OpenKey Function. http://docs.python.org/py3k/library/winreg.html <- The other Access modes are missing in the Documentation, or i need new glasses. Kind Regards, Richi