Implementing an ISAPI rewrite for IIS 6


In an effort to clean up the URLs my WordPress-based site generated, I wanted to implement an ISAPI rewrite. You see, because I host my site on IIS 6, turning on WordPress’ Permalinks required an “/index.php/” in all of my URLs. I wanted a way to eliminate the “/index.php/” portion of the URL.  If I were hosting this site on an Apache server, it would be a no-brainer as Apache has the mod_rewrite module available, and would be able to serve URLs without the /index.php/ out of the box.  According to, the mod_rewrite module “uses a rule-based rewriting engine, based on a PCRE regular-expression parser, to rewrite requested URLs on the fly.”  It is this module that allows the intricate URLs created by WordPress to be presented in a friendly, cleaner manner – allowing to be accessed with a URL such as

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