Provide URL Rewriting Functionality  By Tali Smith  November 15,
2009   The Microsoft® URL Rewrite Module for Internet
Information Services 7 (IIS 7) and above 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 URLs
with dynamic Web applications.   • Rewriting URLs based on HTTP
headers and server variables.   • Handling Web site content.   •
Controlling access to Web site content based on URL segments or
request metadata.  Features of the URL Rewrite Module  The
Microsoft URL Rewrite Module includes these key features:    •
Rules-based URL rewriting engine. Rewrite rules are used to
express the logic of what to compare/match the request URL with,
and what to do if comparison was successful. Web server and site
administrators can use rewrite rule sets to define URL rewriting
logic.   • Regular expression pattern matching. Rewrite rules
can use ECMA-262 compatibl