>Can I use VFP6?

You can, but its not as simple as it would be in VFP7. Since SOAP is an open standard, you can use it from any langauge.

Another interesting point is that you can do this without the use of SOAP. XML Web Services, at their simplest, is just XML and HTTP. For example, if you write a VFP/ASP app that returns HTML, you can easily change that return just XML, so isntead of getting Data inside of UI from the server, you're just getting the data. SOAP however simplifies and standardizes this process, but if thats not important to you, no one said you have to use it :-)

In either case, I suggest you take a look at some of the West-wind.com articles that show you how to do this with VFP6.

>Can I run it on Win2k professional.

You bet.