Short description of IISKeeper 2.2: If you would like to restrict access to some files and folders on your web site or make some information inaccessible to the majority of users on the site, Metamatica Software offers a simple and efficient solution: ISAPI protection filter for IIS. With IISKeeper, you can easily protect any resources of your site by a password. A protected resource is a folder containing subfolders and files or a single file.