The Longbow Previewer 2019
The Longbow Previewer allows you to quickly preview, process and print Autodesk® AutoCAD® file types such as .DWG, .DXF, .DWF, .LSP, .CUIX, .MNU, etc. from within your Outlook Email Preview Pane and also your Windows Explorer Preview Pane without the need to open the file in AutoCAD! The Longbow Previewer has no AutoCAD specific functionality, but instead provides extended AutoCAD related user interface functionality to your Microsoft Outlook 2007 (or newer) and/or Windows Explorer running in Windows XP, Vista, Windows (7, 8, 8.1 and 10) both 32bit and 64bit.
Check out http://www.longbowsoftware.com/Previewer.php for a more detailed overview of the product.
NOTE: Windows XP support includes all of the product features listed except for the Windows Explorer Preview Pane Window extensions, which are omitted.
Note: This app uses a custom installer (and not the standard App Store installer).