Looking for a way to protect your Web servers from unauthorized access? Microsoft has a utility called URLScan that can be used to filter out suspicious requests such as those that are very long or use an alternate character set. You can download this utility by going to http://www.microsoft.com/technet/security/tools/urlscan
.mspx. Before you use this utility, though, keep in mind that you’ll need to have installed the latest Service Pack and any subsequent hotfixes on your server.