VBScript/JScriptから呼び出すCOMをC#で作っていますが、分からないことが有ります。

いちおう、これでいけました。

using System;
using System.Collections.Generic;
using System.Text;

namespace ClassLibrary1
{
    public class Class1
    {
        static Scripting.Dictionary dic = new Scripting.Dictionary();

        static Class1()
        {
            Object[] w_ary = new Object[2];
            Object str1 = "A";
            Object str2 = "B";
            w_ary[0] = str1;
            w_ary[1] = str2;
            Object key = "key";
            Object ary = w_ary; // Object型に代入する
            dic.Add(ref key, ref ary);
        }

        public object test1()
        {
            return dic;
        }

    }
}

----

おまけ。VB.NETでのテストコード

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim cs1 As New ClassLibrary1.Class1
        Dim dic As Object = cs1.test1()
        Dim dat As Object = dic("key")
        Debug.Print(dat(0))
        Debug.Print(dat(1))
    End Sub

End Class