ISAPI_Rewrite

ISAPI_Rewrite 3.1.0.112

Flexible URL rewriting for Microsoft IIS

ISAPI_Rewrite is an IIS URL rewriting engine that uses regular expressions to route and reshape incoming web requests. Its syntax and behavior are largely compatible with Apache mod_rewrite, making many existing rules reusable. Administrators can configure rules globally, per website, or in directory-level .htaccess files, with real-time monitoring and user-level isolation for hosting environments.

ISAPI_Rewrite 3.1.0.112 details

Author:
License: Trialware
Price: $99.00
Released:
File size: 3.30 MB
Downloads: 254
Keywords: apache mod_rewrite for iis, Helicon Tech, server-side software, url rewrite engine, ISAPI filter, iis url manipulation, ISAPI_Rewrite, manipulation, iis url rewriting, regular expression url rules, URL rewriting tool, host header based websites, engine, URL manipulation, manipulation engine, URL, x64 software, Windows 10 compatible
Author URL: https://www.helicontech.com/
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ISAPI_RewriteSearch / Lookup ToolsWindows XP, Windows Vista, Windows 7, Windows 8, Windows 10

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ISAPI_Rewrite for Windows 10 - Full description

ISAPI_Rewrite is a URL rewriting and manipulation engine for websites running on Microsoft Internet Information Services (IIS). It lets administrators and web developers define how incoming request URLs are interpreted and routed, using rules built from regular expressions. This makes it useful for creating readable or custom URL schemes, adapting existing site paths, and configuring host-header-based sites on an IIS server.

The rule syntax and behavior are largely compatible with Apache mod_rewrite. Administrators familiar with Apache can reuse many rewrite rules and, in some cases, migrate configurations by copying .htaccess files. Regular expressions allow rules to match patterns in requested URLs rather than only fixed strings. A rule can be used to map a public-facing path to a different resource, or to apply routing logic based on parts of the request. The result is greater control over how a site handles URLs without requiring every URL structure to match IIS defaults.

Configuration can be applied at several levels: globally across the server, to an individual website or virtual host, or within directories through .htaccess files. This layered approach lets server administrators set common policies while allowing individual sites or directories to define more specific behavior. ISAPI_Rewrite monitors distributed configuration files in real time, so changes can be picked up as configurations are edited. User-level isolation keeps a user's rules within that user's local environment, a useful arrangement for hosting providers managing multiple customers on one server.

The software runs as an ISAPI filter and is implemented in C/C++. Its main role is server-side URL handling rather than editing website content or serving pages on its own. Typical uses include migrating rewrite rules from Apache-hosted sites, maintaining custom URL structures, and allowing separate hosted sites to use rules suited to their own domains and directories. Regular-expression-based rules can also help consolidate URL handling policies that would otherwise need to be managed across many individual resources.

ISAPI_Rewrite is commercial trialware for Windows servers using IIS. The supplied system information lists Windows XP through Windows 10; it does not establish support for later Windows releases. Installation and configuration therefore depend on an IIS environment and appropriate server access. Because rewrite rules affect how requests reach site resources, administrators should test rule changes against the intended host and paths before applying them to a live website.

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