private void GroupListRequest_Click(object sender, EventArgs e)
        {
            //GroupListRequest
            // setup EMsgAPI object - EM
            EMsgAPI_Demo.EMsgAPI_GroupList_201101.GroupListService EM = new EMsgAPI_Demo.EMsgAPI_GroupList_201101.GroupListService();

            // setup Authentication objects
            EMsgAPI_GroupList_201101.RequestAuthentication reqAuth = new EMsgAPI_GroupList_201101.RequestAuthentication();
            EMsgAPI_GroupList_201101.XDDSAuthType XDDSAuth = new EMsgAPI_GroupList_201101.XDDSAuthType();
            EMsgAPI_GroupList_201101.UIDType uid = new EMsgAPI_GroupList_201101.UIDType();

            // init Authentication objects
            XDDSAuth.Password = txtAccessCode.Text;
            //user id = email address for Fax2Mail
            uid.Value = txtUserId.Text;
            //have to set the alias type when not using regular user id
            uid.aliasType = "M2F";
            XDDSAuth.RequesterID = uid;
            reqAuth.Item = XDDSAuth;

            // Setup Request and Group List Request / Group List Result object
            EMsgAPI_Demo.EMsgAPI_GroupList_201101.Request Request = new EMsgAPI_Demo.EMsgAPI_GroupList_201101.Request();
            EMsgAPI_Demo.EMsgAPI_GroupList_201101.Response Response = new EMsgAPI_Demo.EMsgAPI_GroupList_201101.Response();
            EMsgAPI_Demo.EMsgAPI_GroupList_201101.GroupListRequest GList_Request = new EMsgAPI_Demo.EMsgAPI_GroupList_201101.GroupListRequest();
            EMsgAPI_Demo.EMsgAPI_GroupList_201101.GroupListResult GList_Result = new EMsgAPI_Demo.EMsgAPI_GroupList_201101.GroupListResult();

            // Setup Proxy server and EMsgAPIConnect URL for posting data
            Set_Server_and_Proxy(EM);

            // Setup Reqeust Object
            Request.ReceiverKey = EM.Url;
            Request.Authentication = reqAuth;
            //Request.ResultRequired = EMsgAPI_Demo.EMsgAPIADMIN.RequiredType.yes;
            //Request.ResponseRequiredSpecified = true;

            // Set Request / Response values on Premiere Connect Object
            EM.RequestValue = Request;
            EM.ResponseValue = Response;

            // Setup Group List Request
            GList_Request.CustomerAccountNumberSpecified = false;
            GList_Request.IncludeUsers = true;
            GList_Request.IncludeUsersSpecified = true;

            try
            {
                GList_Result = EM.GroupList(GList_Request);
            }
            catch (Exception ex)
            {
                System.Console.WriteLine(ex.Message);
                System.Console.Read();
                return;
            }

            string emfilename = "emresponse.xml";
            string resfilename = "result.xml";
            //string reqfilename = "request.xml";
            try
            {
                //This will output the response, result and request(if uncommented) to XML files in the
                //installed directory. This can be very usefull for debugging or ir help is requested from
                //the EMAPI support team
                if (chkResult)
                {
                    serializeResult(emfilename, EM.ResponseValue);
                    serializeResult(resfilename, GList_Result);
                    //serializeResult(reqfilename, GList_Request);
                }
            }
            catch (IOException io_error)
            {
                MessageBox.Show("Error - " + io_error, "Error", MessageBoxButtons.OK);
            }
            //if (GList_Result.Status.StatusCode.ToString().Equals("0")) 
            //{ // cycle thru results
            //    int i;
            //    for (i,i++,i=GList_Result.Entity.ChildEntity.Length) {
            //        System.Console.WriteLine(GList_Result.Entity.ChildEntity[i].EntityName.Value);
            //    }

            //} // cycle thru results
        }