Anti-leech files, Stop and prevent hotlink bandwidth theft, hotlinking, file leeching, bandwidth bandits, hot links, bandwidth leeching, hotlinks, external linking, remote linking, deep linking and direct linking are all words and phrases used to describe a single problem faced by many webmasters UISD is an IIS plug-in that will protect your web site from bad people stealing your traffic by directly linking to the resouce on your server. If you have an image collection, video, software or document archives, Flash games or any other downloadable resouce UISD is a right product for you. After installing UISD in your site will continue working as before, all search engines and backward links will still be valid, all user's favorites will remain working. But if someone tries to embed your stuff directly on their site, they will only see an error message or your site's logo. You can save tons of traffic and thus the money. Version 3.16 may include unspecified updates, enhancements, or bug fixes.