Many people have emailed me or asked how to install the attachment viewer into Lotus Notes 8.5.1 and above. The easiest method is to use the My Widgets view in the Lotus Notes client. Starting in Notes 8.5.1 you can actually install Eclipse features and plugins using this method. The video below shows how you can do this, I even show how you can enable Widgets in the Lotus Notes client.

/files/InstallAttachmentViewerWidget.swf