Stream define default name (wodWebServer / wodWebServer.NET)
The file is located on the local server where our service (with your component) is running.
Open as a filestream and sent to the client
Dim fs As New System.IO.FileStream(a, System.IO.FileMode.Open)
Args.Response.Stream = fs
On the client side the file is always downloaded as download.pdf (in Microsoft Edge) or pdf.pdf in Firefox