WSDL location?

[Alexander L.]

Hi people, 

I am wondering where to access the WSDL files which are automatically 
generated during a ?WSDL url request.
There doesnt seem to be a file called "BlahService.wsdl" anywhere, so I'm 
not sure if the wsdl document is simply generated on-the-fly for each 
request.  If so, what files are used for that automatic generation?