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I am one of those accidental programmer so I don't have that much knowledge regarding programming best practice. I have an application that currently uses 4 Background Worker. So I declare them: private BackgroundWorker bw1; private BackgroundWorker bw2; private BackgroundWorker bw3; private BackgroundWorker bw4; Then configure them: bw1 = new BackgroundWorker(); bw1.WorkerReportsProgress = true; bw1.DoWork += new DoWorkEventHandler(bw1_DoWork); bw1.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw1_RunWorkerCompleted); bw1.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged); bw2 = new BackgroundWorker(); bw2.WorkerReportsProgress = true; bw2.DoWork += new DoWorkEventHandler(bw2_DoWork); bw2.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw2_RunWorkerCompleted); bw2.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged); bw3 = new BackgroundWorker(); bw3.WorkerReportsProgress = true; bw3.DoWork += new DoWorkEventHandler(bw3_DoWork); bw3.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw3_RunWorkerCompleted); bw3.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged); bw4 = new BackgroundWorker(); bw4.WorkerReportsProgress = true; bw4.DoWork += new DoWorkEventHandler(bw4_DoWork); bw4.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw4_RunWorkerCompleted); bw4.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged); And then I use the bw1.RunWorkerAsync(), bw2.RunWorkerAsync(), and so on... The thing is I never call them simultaneously, they are call at different point in a pretty linear way. So my question is, is it better to have many "pre-configured" background workers or to have one and change the DoWork and RunWorkerCompleted events according to what I want it to do?

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