I have not seen CF autogenerate a namespace like that before.
Usually the namespace values that CF generates for my webservices
look something like this:
http://Directory.web_services
The difference may only be due to the version of CF I was
using to create the WSDLs. Practically, I don't think the actual
value of the Namespace matters as long as it is unique inside your
WSDL. Coldfusion may just be trying to generate a namespace that it
knows is unique to prevent any other namespace collision in the
WSDL.