The Oracle ATG Web Commerce platform provides preconfigured client stubs for all Oracle ATG Web Commerce Web Services in ATGWS.dll. To use these stubs you need to install ATGWS.dll. See Installing ATGWS.dll for instructions. The client stubs provided here should be sufficient for your Oracle ATG Web Commerce Web Services. Note that simultaneous calls to a Web Service made by different threads will require that a unique client stub instance exist for each thread.