This enumeration defines if wodWebServer will return response on client's request automatically (immediately after RequestDone event completes), or you will have to manually call Response.Send method. If you plan to serve static HTML pages, it is convenient to use Automatic delivery method. Even if you will create pages on the fly, but still inside RequestDone event (but please!, do it fast!), you can still set it to Automatic.

However, if you plan to create web page that will consume some time, you will choose Manual delivery - so you can create page with ease (such as, through CGI script), and then send it to the client using Response.Send method.