UTF-8 strings in .NET

Public Function FixUTF8StringForDisplay(ByVal s As String) As String
    Dim b As Byte() = System.Text.Encoding.GetEncoding(28591).GetBytes(s)
    Dim newstr As String = System.Text.Encoding.UTF8.GetString(b)
    Return newstr
End Function

Console.WriteLine(vbLf & "FORM THE PIPESTRING FROM AN XML FILE:")
fname = "Muestra_v2_signed2.xml"
s = Sat.MakePipeStringFromXml(fname)
Console.WriteLine("Sat.MakePipeStringFromXml('{0}')=" & vbLf & "{1}", fname, s)
Debug.Assert(s.Length > 0, "Sat.MakePipeStringFromXml failed")

' Display properly!
Console.WriteLine("FixUTF8StringForDisplay='{0}'", FixUTF8StringForDisplay(s))

public static string FixUTF8StringForDisplay(string s)
{
    byte[] b = System.Text.Encoding.GetEncoding(28591).GetBytes(s);
    string newstr = System.Text.Encoding.UTF8.GetString(b);
    return newstr;
}

Console.WriteLine("\nFORM THE PIPESTRING FROM AN XML FILE:");
fname = "Muestra_v2_signed2.xml";
s = Sat.MakePipeStringFromXml(fname);
Console.WriteLine("Sat.MakePipeStringFromXml('{0}')=\n{1}", fname, s);
Debug.Assert(s.Length > 0, "Sat.MakePipeStringFromXml failed");

// Display properly!
Console.WriteLine("FixUTF8StringForDisplay='{0}'", FixUTF8StringForDisplay(s));