URL rewrite module provides a rule-based rewriting mechanism for changing requested URL’s before they get processed by web server. Microsoft URL Rewrite Module 1.1 for IIS 7 provides flexible rules-based rewrite engine that can be used to perform broad spectrum of URL manipulation tasks, including, but not limited to: Enabling user friendly and search engine friendly URL with dynamic web applications; Rewriting URL’s based on HTTP headers and server variables; Web site content handling; Controlling access to web site content based on URL segments or request metadata. Installation pack includes several additional components and hotfixes required by URL rewriter. Refer to KB articles for hotfixes to get more details. To apply hotfixes correctly without restarting server, its recommended that WAS service’s stopped before installing URL Rewrite Module. Following hotfixes’ll be installed with URL Rewrite Module: Update for IIS 7.0 FastCGI module (KB 954946); Hotfix for IIS 7.0 SetUri function (KB 949172); Hotfix for ASP.NET System.Web.dll (KB 957660); Microsoft Visual C++ 2008 SP1 Redistributable Package.