Thank you so much for responding to my questions! I wasn't sure if you were still monitoring this thread since there haven't been any postings for more than a year.

I understand your comments to my second question. I'll work on that tomorrow.

As for my first question, I would like to provide some specifics. First off, there is no exception (error) when I click the start button. As I mentioned, I single-stepped through the code execution and saw that the ProcessChanged event simply never fires. I worked on this most of the day today and finally gave up trying to get it to work in my initial project. I began this project by creating a new VS2010 project in VB.Net. I added your demo Wunnell.Threading project as a second project to my solution, created a reference to the Wunnell.Threading.dll file, and then *created from scratch* a new form and each of the controls that you have in Form1 of your BackgroundMultiWorker Test project. So, after a lot of time convincing myself that I didn't know what I was doing, I gave up this approach and instead started a new project - but this time I added both your Wunnell.Threading project and your BackgroundMultiWorker Test project to my solution (it now only has those 2 projects). I created the Wunnell.Threading.dll reference. Everything compiled perfectly and your demo application worked in my new project. After I confirmed that the demo worked, then I went about modifying your Form1 and its code to work with my application. My summary...the first crack I took at creating a new project and trying to mimic your Form1 controls and code was not successful because something (or possible may things) weren't exactly duplicated. But I would still like to know what I did wrong (always on a "learning curve' and enjoy the journey). Any of my future projects that use the BackgroundMultiWorker would be nice to not have to go through the steps of adding the BackgroundMultiWorker Test project and then re-working the Form1 controls, code, etc. to fit my application.

One last question: Why is the _ReSharper.Wunnell.Threading folder's included with the files in your demo .zip file? What is this folder and it's files purpose?

John, I really appreciate that you have taken the time to respond to my questions and I've really gained a lot by using your BackgroundMultiWorker. If you'd like to see a screen shot of the application I've built with it, I'd be happy to e-mail it to you.

All the best,

Mark