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Asked: 2026-06-09T17:21:19+00:00

We are using Windows Azure Web Roles to host our MVC 3 application. From

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We are using Windows Azure Web Roles to host our MVC 3 application. From many of the performance related questions here on SO, I have seen that the URL Rewrite module can have a performance impact on an MVC 3 application, even when not being used.

With that said, is there a way in either the web.config or ServiceDefinition files to disable or remove the URL Rewrite module on Azure? One way that I have thought about is using a .cmd file on startup, similar to what we use to extend the App Pool timeout and recycle periods on the application, but cannot find a command line method of disabling the module.

URL Rewrite on by default on Azure Web Roles

Impact of URL Rewrite on Server

Method of increasing App Pool timeout on Azure

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  1. Editorial Team

    Which version of the SDK are you using? Version 1.3 and higher don’t install it by default. See the documentation here:

    If you wish to use the IIS URL Rewrite module, you must install it and
    configure your rewrite rules. See URL Rewrite Module for more
    information.

    Update:

    I’ve double checked and it seems that URL Rewrite 2 is still installed on the Web Roles (I’m using the 1.7 SDK). To uninstall URL Rewrite, create a startup task (elevated) that executes the following:

    wmic product where name="IIS URL Rewrite Module 2" call uninstall
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