I made some samples using web service data windows, and all worked fine.
Just that after making some real life test I found a very slow perfomance.

I have datawindows that have some drop-down data windows inside of them, for
example to edit records. Every retrieve function to those datawindows has a
connect function calls. Can this procedure affects the performance? Is
there a way to avoid it?

Best Regards
Alfredo Santibáñez