Azure Access Control Service

I have a query regarding to to Azure Authentication and Authorization I have a token from azure active directory now i want to send this token to ACS as SWT token any method?

private static string SendSAMLTokenToACS(string accessToken)
{
    try
    {
        WebClient client = new WebClient();
        client.BaseAddress = string.Format("http://ift.tt/1CVejWp");
        NameValueCollection parameters = new NameValueCollection();
        parameters.Add("wrap_assertion_format", "SAML");
        parameters.Add("wrap_assertion", accessToken);
       // client.Headers.Add("","");
        parameters.Add("wrap_scope", "http://localhost:1020/ServiceMessage.svc");
      //  client.Headers. Add("Authorization", "WRAP access_token=\"\"");

        byte[] responseBytes = client.UploadValues("WRAPv0.9", parameters);
        string response = Encoding.UTF8.GetString(responseBytes);

        return response
         .Split('&')
         .Single(value => value.StartsWith("wrap_access_token=", StringComparison.OrdinalIgnoreCase))
         .Split('=')[1];
    }
    catch (WebException wex)
    {
        string value = new StreamReader(wex.Response.GetResponseStream()).ReadToEnd();
        throw;
    }
}