Hello,

I`ve read the documentation and I still can`t run a task in the scheduler (DNN version    4.0.2).

This is the class I`ve made:

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
using DotNetNuke;

namespace SoftGuideJobs
{

    public class EmailJobs : DotNetNuke.Services.Scheduling.SchedulerClient
    {
               public EmailJobs(DotNetNuke.Services.Scheduling.ScheduleHistoryItem  objScheduleHistoryItem): base()
        {
            this.ScheduleHistoryItem = objScheduleHistoryItem;
        }
        public override void DoWork()
        {
            try
            {
                this.Progressing();
                ExpirareBannere();
                this.ScheduleHistoryItem.Succeeded = true;
                this.ScheduleHistoryItem.AddLogNote("ExpirareBannere succes");
            }
            catch (Exception ex)
            {
                this.ScheduleHistoryItem.Succeeded = false;
                this.ScheduleHistoryItem.AddLogNote("EXCEPTION"+ ex.ToString());
                this.Errored(ref ex);
               
            }
           
            //throw new Exception("The method or operation is not implemented.");
        }

        public void ExpirareBannere()
        {
         
            this.Status = "trimis mail-uri";
            this.ScheduleHistoryItem.AddLogNote("ExpirareBannere incheiat cu succes");
            this.ScheduleHistoryItem.Succeeded = true;
        }
    }

    }

Then I`ve compiled the class in a dll (EmailJobBanner.dll) and copyed to the bin directory

I configured the DotNetNuke Scheduler. (Full Class Name and Assembly:
 "SoftGuideJobs.EmailJobs.ExpirareBannere, EmailJobBanner" )

When I run the site I get a pop-up from the Visual Studio just-in-time debuger:

An unhandled exception ('SystemNullReferinceException') occurred in the aspnet_wp.exe [3732].

Thanks