Can't access event log for tasks

Question

I am trying to access the log file at "Microsoft-Windows-TaskScheduler/Operational" but get an exception

string logName = "Microsoft-Windows-TaskScheduler/Operational";
EventLog log1 = new EventLog(logName, "myMachine");

foreach( EventLogEntry entry in log1.Entries )
{

}

// threw exception: System.InvalidOperationException: The event log 'Microsoft-Windows-TaskScheduler/Operational' on computer 'myMachine' does not exist..

Does anyone know what I need to do?