ต้องการเขียน VBscript ให้เรียก module ที่อยู่ใน dll ทำยังไงครับ

using System;
using System.Runtime.InteropServices;
namespace MyDLL
{
 [ComVisible(true)]
 public class Operations
 {
 [ComVisible(true)]
 public string getValue1(string sParameter)
 {
 switch (sParameter)
 {
 case "a":
 return "A was chosen";

 case "b":
 return "B was chosen";

 case "c":
 return "C was chosen";

 default:
 return "Other";
 }
 }
 public string getValue2()
 {
 return "From VBS String Function";
 }
 }
}

dim myObj
Dim myClass
Set myObj = CreateObject("MyDLL.Operations")
MsgBox myObj.getValue1("a")
MsgBox myObj.getValue2()