Consuming An Array From A Webservice?

I am trying to consume an array of strings from a webservice that I wrote. I keep getting the error: "System.NullReferenceException: Object reference not set to an instance of an object."

I know I am doing some thing wrong at an extremely basic level, but it's not coming to me.

I have tried adding New but get the error that you can't declare arrays with New

Here is the dummed down webservice method:<WebMethod( _
Description:="Testing ")> _
Public Function TestArray(ByVal Address1 As String, ByVal zip As String) As String()
Dim strTest(4) As String
strTest(0) = "It's"
strTest(1) = "a"
strTest(2) = "great"
strTest(3) = "day"
Return strTest
End Function
<--Here is the call that generates the null reference error-->

Private Sub FindAddress()
Dim svc As ws.Service
Dim strAddresses() As String
strAddresses = svc.TestArray(txtAddress.Text, txtZip.Text)
End Sub