Imports System Class C1 Protected Friend a As Integer=20 End Class Class C2 Inherits C1 Public Sub S() Try If a<>20 Then Throw New Exception("#A1-AccessibilityA:Failed-error accessing value of protected friend data member from derived class") End If Catch e As Exception Console.WriteLine(e.Message) End Try End Sub End Class Module Accessibility Sub Main() Dim myC1 As New C1() Try If myC1.a<>20 Then Throw New Exception("#A2-AccessibilityA:Failed-error accessing value of protected friend data member from another module") End If Catch e As Exception Console.WriteLine(e.Message) End Try Dim myC2 As New C2() myC2.S() End Sub End Module