Consuming Web Services
At the time this book was written, the second beta of Visual Studio .NET had just been released. Publicly available Web Services based upon .NET Beta 2 were not commonplace. Most available Web Services, if they were .NET–based, produced Service Description Language (SDL) instead of Web Service Description Language (WSDL). The non–.NET Web Services that were available, usually created with IBM and Apache tools, were all WSDL 1.0–compliant, whereas .NET Beta 2 expected WSDL 1.1–compliant services. It was difficult to find a true Web Service to present to you!
But this industrious author found one—a simple calculator Web Service based upon Visual Basic .NET. You can't do much: add, subtract, multiply, and divide—and, at that, ...
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