“Access Denied” while Activating Custom Timer Job

Question

When i tried to Activate Feature of Timer Job It returns error : Access Denied

Scope of Feature is "Site"..

private static void CreateJob(SPSite site)       
 {          
  try        
    {
     SPSecurity.RunWithElevatedPrivileges(delegate()
     {               
     TenderTimerJob job = new TenderTimerJob(JobName, site.WebApplication);
     job.Properties.Add("SiteCollectionUrl", site.Url);
     SPMinuteSchedule minutes = new SPMinuteSchedule();
     minutes.BeginSecond = 0;
     minutes.Interval = 30;
     minutes.EndSecond = 30;
     job.Schedule = minutes;
     job.Update(); //Error Generates here
     });
    }
    catch (Exception ex){
     string str = ex.Message.ToString();
   }
}

Answer 1

When a timer job instance is created, it is persisted to the farm configuration database. Accessing this database for write purposes is a privileged operation; as a rule of thumb, only the farm service account (that is, the account under which OWSTIMER.EXE executes) or accounts that explicitly have the rights. So application pool account wouldn't work, as this this task requires farm level permissions. However, if you're developing in Visual Studio 2010 you can avoid automatic activation of features using Project-> Properties -> In the Active Deployment Configuration section select "No Activation"