Invoke .Net Assembly using SSIS:Email Framework

using System;
using System.Collections.Generic;
using System.Collections;
using System.Text;
using System.Xml;
namespace EmailFramework
{
    public class NotificationManager
    {
        private static IDictionary<string, string> configSettings = new Dictionary<string, string>(); 
        static NotificationManager()
        {                 
            XmlDocument xmlDocument = new XmlDocument();
            xmlDocument.Load("D:/EmailFramework/EmailFramework/EmailFramework/app.config"); 
            XmlNodeList nodeList = xmlDocument.SelectNodes("configuration/appSettings/add"); 
            int index = 0;

            foreach (XmlNode node in nodeList)
            {
                string key = node.Attributes.GetNamedItem("key").Value;
                string value = node.Attributes.GetNamedItem("value").Value;
                configSettings.Add(key, value);
                index += 1;
            }
        }
        public static void NotifyDueForCreditPayment()
        {
            MailContent mailContent=new MailContent();
            try
            {
                mailContent.MailTo = "santosh.poojari@accenture.com";
                mailContent.MailFrom = "santosh.poojari@accenture.com";
                mailContent.Subject = "THIS TEST MAILER";
                //Body Content 
                Hashtable templatePlaceHolder = new Hashtable();
                templatePlaceHolder.Add("To", "santosh Poojari");
                templatePlaceHolder.Add("Credit_Card_Number",104562321373263 );
                templatePlaceHolder.Add("Due_Date", DateTime.Now);
                mailContent.IsBodyHTML = true;
                mailContent.MessagePriority = 1;
                mailContent.MessageText = string.Empty;
                EmailServices.SendRegisterNotification(mailContent, templatePlaceHolder, configSettings["ET_DueForCreditPayment"]);
            } 
            catch
            {
            }
        }
        public static void NotifyCreditCardExpiry()
        {

        }
        public static void NotifyApplicationForAddOnCard()
        {

        }
    }
}