SCENARIO & USE: While using Outlook, many of us like to click Reply to All and wish all the attachments were included as-is. Or we wish we could click Forward and have all the recipients copied in as well. Here is a combo that helps both. Reply All with Attachment add-in!
See the attached Image that shows the 'Custom Actions' button that has 'Reply All with Attachment' button under it.
Learn more and download it from : http://replyallwithattach.codeplex.com/