private void FormQuickView_Shown(object sender, EventArgs e)
		{
			if (Link != null)
			{
				Text = String.Format("Preview - {0}", Link.Name);

				MainController.Instance.ProcessManager.Run("Loading preview...", cancellationToken =>
					Invoke((MethodInvoker)delegate
					{
						try
						{
							_linkViewer = LinkViewerFactory.Create(Link);
						}
						catch
						{
							_linkViewer = new CommonFileViewer(Link);
						}
					}));

				if (_linkViewer != null)
				{
					((Control)_linkViewer).Visible = true;
					pnPreview.Controls.Add(_linkViewer as Control);
				}

				barLargeButtonItemInsert.Visibility = Link is VideoLink ? BarItemVisibility.Always : BarItemVisibility.Never;
				barLargeButtonItemEmail.Visibility =
					(MainController.Instance.Settings.EmailButtons & EmailButtonsDisplayOptionsEnum.DisplayQuickView) == EmailButtonsDisplayOptionsEnum.DisplayQuickView && Link is LibraryFileLink ?
					BarItemVisibility.Always :
					BarItemVisibility.Never;
				barLargeButtonItemPrint.Visibility = Link is ExcelLink || Link is DocumentLink ? BarItemVisibility.Always : BarItemVisibility.Never;
				barLargeButtonItemSave.Visibility = Link is LibraryFileLink ? BarItemVisibility.Always : BarItemVisibility.Never;
			}
			LinkManager.PreviousPreviewHandles.Add(RegistryHelper.SalesDepotHandle.ToInt32());
			RegistryHelper.SalesDepotHandle = Handle;
			RegistryHelper.MaximizeSalesDepot = false;
		}
		private void FormLinkPreview_FormClosed(object sender, FormClosedEventArgs e)
		{
			pnPreview.Controls.Clear();
			_linkViewer.ReleaseResources();
			_linkViewer = null;
		}