VB.NET - RDLC / ReportViewer Export Filename; HTML encoding

Hello..

I have the export to only PDF working properly.  I have the filename being saved properly using the ReportViewer1.LocalReport.DisplayName = String.Format property.

But, I would like to add a hypen to the filename, but when the save as dialog box opens, it shows the hyphen as %2D.

Any ideas on how to turn off the HTML encoding so the filename can have a hyphen and other characters?

Thanks..