optional parameters for xml

Hi,

I am having an xml URL like

http://soap.search.msn.com/webservices.asmx?wsdl .Now i would like to know are there any optional parameters that can be used after the '?' mark. I want to see the xml behaviour..If any one have a comment on it, plz let me know.

Thanks in advance.

--Nataraja

[486 byte] By [Nataraja] at [2008-2-15]