Cheyrl,

   When you make a call to fire an event, you usually do something like
this:

eventHandler(this, new EventArgs());

   Or something similar, where eventHandler is the event declaration for
your event (of course, you check for null as well).

   Instead of that, you would do this:

foreach (EventHandler handler in eventHandler.GetInvocationList())
{
   // Check for the ISynchronizeInvoke implementation.
   ISynchronizeInvoke si = handler.Target as ISynchronizeInvoke;

   // If there is an implementation, call it on that thread.
   if (si != null)
   {
       // Call.
       si.Invoke(handler, new object[2]{this, new EventArgs()});
   }
   else
   {
       // Call normally.
       handler(this, new EventArgs);
   }
}