>Am I going crazy or does this make sense to anyone? My guess is when I compiled the DLL, VFP somehow embedded the relative path (\\machine\c$\TNSData\main.dbc) in the DLL.

Did you change the Web service path in the WSDL? The WSDL has a URL to the Web service (the ASP page if its an asp listener), and if you copy the WSDL from the development to the production without chaging that URL, consuming the WSDL from the production will call the Web Service on the development.