Thank you Martina, thank you Rick great advices. Now please let me tell you about my experience with this, since I couldn't use vfp to connect to the webservice correctly, I started with VS2015 c# a project to do a "bridge" thinking in that vfp was not capable, because my client provide me a soapui project example that was working, after hours with a collegue that has a lot of experience in .net we found that the webservice is not responding accordingly in .Net also, at this moment the piece of code that I shared is working with 3 other soap webservices but not with client's one. Was a nightmare and a new lesson learned. vfp was not the problem..My doubt was because the client was telling me that their ws is fine and responding well, yes it works in the soapui example provided, but now with 2 apps receiving wrong results I'm sure the problem is the ws.
Thank you again and I will use your recomendations to polish my code.

John.