String Key of the password to be updated.

WmSecureString New password value for the key.

String "true" if this is an internal password; "false" if it is public. By default, this is "false". If you specify incorrectly whether the password is internal or public, the update operation will fail. (For more information about internal and public passwords, see Internal and Public Passwords.)

String "true" if the password value was successfully changed; "false" otherwise.

String "successful" or reason for failure.