Follow-up....
Talk about a red herring...
My stub had a function called 'PerformService(DataSet DsRemoteInfo)'
My 'actual' service had a function called 'PerformService(DataSet DsIn)'
Apparently, the parameters for the 'stub/proxy' need to be spelled the same. Once I did that, and just did a simple 'myservice.url =
' before calling the service, it worked fine.
Go figure!