UPDATE:

I managed to mutilate someone elses code to do a similar thing to what i was looking for but now i would like to be able to auto join this session too. the code that i am using is below

<%@ WebHandler Language="C#" Class="CreateSession" %>

using System;
using System.Web;

public class CreateSession : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
var sessionCode = context.Request.QueryString["Code"];
var Username= context.Request.QueryString["UserName"];

using (var sessionManager = Elsinore.ScreenConnect.ServerExtensions.SessionManagerChannelFactory.CreateChannel())
{
sessionManager.CreateSession(Elsinore.ScreenConnect.InvitationType.Code, sessionCode, Username);
}

context.Response.Redirect("Host.aspx");
}

public bool IsReusable { get { return false; } }
}