Problems understanding MSIB UrlBuilder.

"Web site page navigation infrastructure. This physical component consists of the page navigation infrastructure. Site pages use the framework class UrlBuilder to construct links and to redirect to other pages. The UrlBuilder class methods ensure that any cookie information is carried over in the URL when cookies are disabled." http://www.microsoft.com/technet/itsolutions/techguide/mso/msib/msibarch.mspx

What does it mean? Is there a way to configure it?

I'm looking for the way to support Commerce Server's option to have the ticket in the url using the UrlBuilder. I might have a useable hack, but I'm hoping to find a right way.