UrlRewriter.NET is an open-source, light-weight, highly configurable URL rewriting component for ASP.NET 1.1 and 2.0. UrlRewriter.NET provides similar IIS Rewrite capabilities that the Apache web server provides with mod_rewrite and .htaccess. You don’t need to install an ISAPI Rewrite filter to use the component.

UrlRewriter.NET is a great Search Engine Optimization (SEO) tool. Using UrlRewriter.NET, you can create URL’s containing your target keywords, boosting your rankings.

With UrlRewriter.NET, you can:

• Rewrite URL’s from “user and Search Engine” friendly urls to the actual .aspx pages (also known as URL Masking, IIS Rewrite or ASP Rewrite)
• Redirect from old URL patterns to the new ones, ensuring the Search Engine spiders continue to follow your links (also known as URL Replace)
• Block certain visitors based on the User-Agent - very helpful for blocking crawlers that don’t obey the robots.txt protocol
• Ban users based on IP range (provides the capabilities of mod_rewrite on IIS)
• And much more…

UrlRewriter.NET is a pure .NET component written in C#, and does not require any ISAPI rewrite dll’s to be installed in IIS. You configure rules in a very readable XML format, either in your web.config file or an external rewriter configuration file.