>The class from which all other .NET reference types are derived. If you simply declare a class without specifying a base class then it derives from System.Object.

Ok, I tried to incorporate this into the method. For now, it looks like this:

        ' If a method exists in a sub class
        ' expO1 Originator
        ' expC1 Name of the method
        Public Function IsMethodExistInSubClass(ByVal toOriginator As Object, ByVal tcMethod As String) As Boolean
            Dim lcBaseClass As String = ""
            Dim llExist As Boolean = False
            Dim loType As Type = Nothing
            Dim loTypeParent As Type = Nothing
            Dim loMethodInfo As System.Reflection.MethodInfo = Nothing

            ' Get a reference to the originator type
            loType = toOriginator.GetType()

            ' Get a reference to the method
            loMethodInfo = loType.GetMethod(tcMethod, System.Reflection.BindingFlags.Instance Or System.Reflection.BindingFlags.Public)

            ' Get a reference to the same object as well so we can climb up the chain for comparism
            loTypeParent = loType

            ' Loop until we have reached the base class
            While True

                ' If we have reached the base class
                If loTypeParent.BaseType = loType.BaseType Then
                    Exit While
                Else
                    loTypeParent = loTypeParent.BaseType
                End If

            End While

            ' Get the base class name
            lcBaseClass = loTypeParent.Name

            ' If the method exists in the sub class
            If loMethodInfo.DeclaringType.Name <> lcBaseClass Then
                llExist = True
            End If

            Return llExist
        End Function

But, that doesn't work anymore to recognize the overridable method. It is something in the While loop that I need to adjust.