<P> IIS releases new feature modules between major version releases to add new functionality . The following extensions are available for IIS 7.5: </P> <Ul> <Li> FTP Publishing Service: Lets Web content creators publish content securely to IIS 7 Web servers with SSL - based authentication and data transfer . </Li> <Li> Administration Pack: Adds administration UI support for management features in IIS 7, including ASP.NET authorization, custom errors, FastCGI configuration, and request filtering . </Li> <Li> Application Request Routing: Provides a proxy - based routing module that forwards HTTP requests to content servers based on HTTP headers, server variables, and load balance algorithms . </Li> <Li> Database Manager: Allows easy management of local and remote databases from within IIS Manager . </Li> <Li> Media Services: Integrates a media delivery platform with IIS to manage and administer delivery of rich media and other Web content . </Li> <Li> URL Rewrite Module: Provides a rule - based rewriting mechanism for changing request URLs before they are processed by the Web server . </Li> <Li> WebDAV: Lets Web authors publish content securely to IIS 7 Web servers, and lets Web administrators and hosters manage WebDAV settings using IIS 7 management and configuration tools . </Li> <Li> Web Deployment Tool: Synchronizes IIS 6.0 and IIS 7 servers, migrates an IIS 6.0 server to IIS 7, and deploys Web applications to an IIS 7 server . </Li> </Ul> <Li> FTP Publishing Service: Lets Web content creators publish content securely to IIS 7 Web servers with SSL - based authentication and data transfer . </Li> <Li> Administration Pack: Adds administration UI support for management features in IIS 7, including ASP.NET authorization, custom errors, FastCGI configuration, and request filtering . </Li>

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