	ro	ActiveYarns (TIdScheduler)
pt	ro	IsDesignTime (TIdBaseComponent)
pt	ro	IsLoading (TIdBaseComponent)
pl		MaxThreads (TIdSchedulerOfThread)
pl		PoolSize (TIdSchedulerOfThreadPool)
		ThreadClass (TIdSchedulerOfThread)
pl		ThreadPriority (TIdSchedulerOfThread)
	ro	Version (TIdBaseComponent)