Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_43 (bulletins_to_all_contacts VARCHAR, creator VARCHAR, transport_layer_security VARCHAR, license VARCHAR)
### Question:
Were there Bulletins to all contacts of the proprietary license created by Microsoft with no transport layer of security?
### Answer:
SELECT bulletins_to_all_contacts FROM table_name_43 WHERE transport_layer_security = "no" AND license = "proprietary" AND creator = "microsoft"