Will anobody be able to help me?

I am creating a windows service that connects to a sql database and checks a date in the table and compares it to todays date and updates a field in that database for eg if the date is equal to todays date then the field will be set to true.

The problem I am having is that when i start the service it does not do that but when i do it in a normal form it works perfectly.

My code is below:

```
//System.Timers
Timer timer = new Timer();
protected override void OnStart(string[] args)
{
    timer.Elapsed += new ElapsedEventHandler(OnElapsedTime);
    timer.Interval = 60000;
    timer.Enabled = true;
}

private void OnElapsedTime(object source, ElapsedEventArgs e)
{
    int campid = 0;
    var campRes = new ROS.Process.CampaignServiceController().GetCampainInfo();

    foreach (var s in campRes)
    {
        campid = s.CampaignId;

        if (s.CampEndDate.Date < DateTime.Today.Date)
        {
            //WriteDataToFile("Not Active : " + campid.ToString());
            new ROS.Process.CampaignServiceController().SetCampainStatusFalse(campid);
        }
        else
        {
            //WriteDataToFile("Active : " + campid.ToString());
            new ROS.Process.CampaignServiceController().SetCampainStatusTrue(campid);
        }
    }
}

```