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My WPF application gets a file from the user with Microsoft.Win32.OpenFileDialog()... Private Sub ButtonUpload_Click(...) Dim FileOpenStream As Stream = Nothing Dim FileBox As New Microsoft.Win32.OpenFileDialog() FileBox.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) FileBox.Filter = "Pictures (*.jpg;*.jpeg;*.gif;*.png)|*.jpg;*.jpeg;*.gif;*.png|" & _ "Documents (*.pdf;*.doc;*.docx;)|*.pdf;*.doc;*.docx;|" & _ "All Files (*.*)|*.*" FileBox.FilterIndex = 1 FileBox.Multiselect = False Dim FileSelected As Nullable(Of Boolean) = FileBox.ShowDialog(Me) If FileSelected IsNot Nothing AndAlso FileSelected.Value = True Then Try FileOpenStream = FileBox.OpenFile() If (FileOpenStream IsNot Nothing) Then Dim ByteArray As Byte() Using br As New BinaryReader(FileOpenStream) ByteArray = br.ReadBytes(FileOpenStream.Length) End Using Dim z As New ZackFile z.Id = Guid.NewGuid z.FileData = ByteArray z.FileSize = CInt(ByteArray.Length) z.FileName = FileBox.FileName.Split("\").Last z.DateAdded = Now db.AddToZackFile(z) db.SaveChanges() End If Catch Ex As Exception MessageBox.Show("Cannot read file from disk. " & Ex.Message, "Fail", MessageBoxButton.OK, MessageBoxImage.Error) Finally If (FileOpenStream IsNot Nothing) Then FileOpenStream.Close() End If End Try End If End Sub And my ASP.NET MVC application serves it up for download at a web site with FileStreamResult()... Public Class ZackFileController Inherits System.Web.Mvc.Controller Function Display(ByVal id As Guid) As FileStreamResult

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