I've got a web site in .net 1.1 that uses a .net 2.0 web service. If any of the methods in the web service return a strongly typed dataSet, I get the following error when trying to instantiate the webService: "Method Service.get_SreetList can not be reflected." Here's an example of one of the methods that causes the exception: <WebMethod( _ Description:="This method gets all the streets ")> _ Public Function get_SreetList() As AddressVerificationDataSet.STREET_MASTER_COWDataTable Return objDAL.GetStreetList() End Function If I replace this function with something more generic, I have no exception when instantiating the web service: <WebMethod( _ Description:="This method gets all the streets ")> _ Public Function get_DataSet() As System.Data.DataSet Dim oDs As New System.Data.DataSet Return oDs End Function Any way to fix this? Tks