Private Function GetPrefsForUser() As Boolean
    Try
        ' Retrieve an IsolatedStorageFile for the current Domain and Assembly.
        Dim isoFile As IsolatedStorageFile = _
            IsolatedStorageFile.GetStore(IsolatedStorageScope.User _
            Or IsolatedStorageScope.Assembly _
            Or IsolatedStorageScope.Domain, Nothing, Nothing)

        Dim isoStream As New IsolatedStorageFileStream("substituteUsername", System.IO.FileMode.Open, _
            System.IO.FileAccess.Read, System.IO.FileShare.Read)
        ' farThe code executes to this point only if a file corresponding to the username exists.
        ' Though you can perform operations on the stream, you cannot get a handle to the file.
        Try

            Dim aFileHandle As SafeFileHandle = isoStream.SafeFileHandle
            Console.WriteLine(("A pointer to a file handle has been obtained. " & aFileHandle.ToString() & " " & aFileHandle.GetHashCode()))

        Catch ex As Exception
            ' Handle the exception.
            Console.WriteLine("Expected exception")
            Console.WriteLine(ex.ToString())
        End Try

        Dim reader As New StreamReader(isoStream)
        ' Read the data.
        Me.NewsUrl = reader.ReadLine()
        Me.SportsUrl = reader.ReadLine()
        reader.Close()
        isoFile.Close()
        Return False
    Catch ex As System.IO.FileNotFoundException
        ' Expected exception if a file cannot be found. This indicates that we have a new user.
        Return True
    End Try
End Function 'GetPrefsForUser