Printting a file in .NET

Dim psiPrint As New System.Diagnostics.ProcessStartInfo()
psiPrint.Verb = "print"
psiPrint.WindowStyle = ProcessWindowStyle.Hidden
psiPrint.FileName = "C:\MyFile.pdf"
psiPrint.UseShellExecute = True
System.Diagnostics.Process.Start(psiPrint)