I need to consume a WCF service based on a (preferably single) wsdl file.
The environment is VS-2008 (sp1), and I will be using a customized \"Add Service Reference
Sure - you can copy the path+filename for the WSDL and paste that into the "Add Service Reference" dialog box in Visual Studio (or just type int the full path + WSDL file name).
Alternatively, you can use the svcutil.exe
command line utility to convert the WSDL file to your client proxy class.