DocumentViewer: Dont delete list of tempfiles

Controls.DocumentViewer/DocumentViewer.vb

@@ -46,8 +46,6 @@ Public Class DocumentViewer
     Private _TempFiles As New List(Of String)
 
     Private Sub DocumentViewer_Load(sender As Object, e As EventArgs) Handles Me.Load
-        _TempFiles.Clear()
-
         UpdateMainUi()
     End Sub
 
@@ -134,12 +132,12 @@ Public Class DocumentViewer
     Public Sub DeleteTempFiles()
         For Each oFile In _TempFiles
             Try
-                IO.File.Delete(oFile)
+                _logger.Debug("Deleting temp file [{0}]", oFile)
+                File.Delete(oFile)
             Catch ex As Exception
-                _logger.Warn("Could not delete temp file {0}", oFile)
+                _logger.Warn("Could not delete temp file [{0}]", oFile)
             End Try
         Next
-        _TempFiles.Clear()
     End Sub
 
     Private Sub SetViewerMode(Extension As String)