RangeEnd value determines if server should send partial content
back to the client, and at which position should partial content
wodWebServer will set this value when
set to Automatic, and client requests partial content. Client
will send such request when he wants to resume file transfer, or
because he uses download managers that split response in several
parts and download them simultaneously. Together with setting
this value, wodWebServer will set
StatusCode to 216 (Partial Content response).
You can of course fill up these properties by yourself before
sending response, thus forcing wodWebServer to send only part of the
file back to the client.