Did you try to call COM directly from VFP?

1. Install VFP8 runtime on web server
2. Install SOAP toolkit
3. I prefer to always compile Web Service as for my development machine, that just edit WSDL file (changing last occurence of LOCALHOST or similar to relevant URL to production web server). For example /soap:address location='http://127.0.0.1/ws/PUBLISHER.WSDL'// to /soap:address location='http://www. myserver.com/ws/PUBLISHER.WSDL'//
4. Copy WSDL files (both) and WSML file to Virtual directory on IIS.
5. Copy DLL (TLB) to web server (for example to Program Files) and register it.
6. Set relevant privilegia to directory.

PetrZ