http://blogs.msdn.com/nikhiln/archive/2008/05/22/httphandler-to-authorize-file-downloads-c-code-sample.aspxIts quite a common scenario to have a feature in a web site to check for the credentials of the user before allowing a particular download. For example, there might be some documents which should be visible only to a set of users and not to any others.en-USCommunityServer 2.1 SP1 (Build: 61025.2)