New Post: Can't Open .dspx File

Dim dlg = New OpenFileDialog()
            dlg.Filter = AppManager1.SerializationManager.OpenDialogFilterText

            If dlg.ShowDialog(Me) <> DialogResult.OK Then

                Return
            End If
            Try
                'use the AppManager.SerializationManager to open the project
                Me.Cursor = Cursors.WaitCursor
                AppManager1.SerializationManager.OpenProject(dlg.FileName)


            Catch generatedExceptionName As IOException
                MessageBox.Show(Me, "Could not open the specified map file" + dlg.FileName, "Error", MessageBoxButtons.OK, MessageBoxIcon.[Error])
            Catch generatedExceptionName As XmlException
                MessageBox.Show(Me, "Failed to read the specified map file" + dlg.FileName, "Error", MessageBoxButtons.OK, MessageBoxIcon.[Error])
            End Try