Thank you Ashok Kumar 

Thank you , I will try these.

Hi Eduard,

I have a scheduler task and associated class that works.

Class Sample.Util.CreateTask Extends (%SYS.Task.Definition, %Persistent)
{

Parameter PROPERTYVALIDATION = 1;

Parameter TaskName = "Sample.Util.CreateTask";

Method OnTask() As %Status
{
// Perform the logic
}

}

Is there a way to Enable or Disable the abbove task "CreateTask()" from an external function/Method/class ?