The string array is not one of the supported schema types so the return type of this method is defined by the service. Hover the GetPractices method and intellisense will tell you what type it is returning, or use Object Browser and have a look at the service proxy class. I'm using VB2008, not sure if that changed from VB2005, but here I have a ServiceReference namespace to the service proxy class that defines the return type as class ArrayOfString, a class that inherits List(Of String). So both these examples mean the same, but you should learn the first, it will help you use other services that similarly defines various return types.

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