3.1.5.2.2 CREATE-SESSION Response
The client MUST verify that the message satisfies the requirements in sections 2.2.1 and 2.2.3, discarding the message if not.
If the HTTP status code is 200, the request was successful and BITS session–specific information has been set up for upload on the server.
If the HTTP status code is 200, as specified in section 3.1.5.1.2 the client MUST update the fields in HTTPUploader with the values returned through the response headers. See section 2.2.3.2 for the headers returned. The client MUST update the destination URL as described in BITS-Host-ID in section 2.2.3.2. The client SHOULD send a PING message request to the host, sent through BITS-Host-ID, to validate that the host can be contacted.
For handling other HTTP status codes, see section 3.1.5.2.1.