Text Over Progressbar

Transparent labels don't work in winforms so the text has to be manually drawn. From this article, you can add percents. Based on that code, here is a version with bolded custom text:

        private void UpdateProgressText(string ProgressText)
        {
            using (Graphics gr = prgStatus.CreateGraphics())
            {
                gr.DrawString(ProgressText,
                    new Font(FontFamily.GenericSansSerif, 8, FontStyle.Bold),
                    Brushes.Black,
                    new PointF(prgStatus.Width / 2 - (gr.MeasureString(ProgressText,
                        SystemFonts.DefaultFont).Width / 2.0F),
                    prgStatus.Height / 2 - (gr.MeasureString(ProgressText,
                        SystemFonts.DefaultFont).Height / 2.0F)));
            }
        }

Make sure to call UpdateProgressText() in the ProgressChanged() handler after doing a prgBar.Update();

Unblock Files Recursively

If you run into this scenario:

It happens when executables and msi's are downloaded from a browser. 

To fix it, just run this command in powershell:

dir -Path C:\Temp -Recurse | Unblock-File

It will remove the blocking for all files and subdirectories under the specified path.