With a bit more investigation, it was apparent that the time consuming task in this example, retrieving a string from a website, was effectively driving the frequency that the progress bar was updated -- retrieve a string then update the progress bar. My problem is that the task I'm calling does not return for several seconds and it is during this time that I want to be updating the progress bar since the task is a blocking task. How do I call such a task and also be updating the progress bar?