3.1.5.2.1 Without Content Negotiation
The message flow between a client and server on subsequent requests for the XML file containing the resource list, without content negotiation, is shown in the following figure.

Figure 4: Message flow between TSWPP client and TSWPP server on subsequent requests without content negotiation
In the preceding figure, the TSWPP client has already obtained the .ASPXAUTH cookie shown in section 3.1.5.1.1. This cookie is set in the HTTP request header (section 2.2.3) and the XML file containing the resource list is requested. No schema version is requested by the client.
When no schema version is requested, the XML resource list SHOULD conform to the XML schema (XSD) version 1.1 for messages that are sent from a TSWPP server to a TSWPP client as specified in section 2.2.1.1.
If the server provides a cookie authentication mechanism, the server SHOULD authenticate the user's access by using the .ASPXAUTH cookie (section 3.3.1.1) and MUST return the XML file to the client.