Can I stop ASP.NET from returning 'The resource cannot be found.'?

Posted by mackenir on Stack Overflow See other posts from Stack Overflow or by mackenir
Published on 2010-03-25T13:17:13Z Indexed on 2010/03/27 0:03 UTC
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Filed under:

ASP.NET

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iis

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httpmodule

I have installed an HttpModule into my web app that will handle all requests with a given file extension.

I want ASP.NET to handle all requests with the extension, regardless of whether there is an underlying file on disk. So, when I added the extension to the 'Application Extension Mappings', I unchecked the 'Verify that file exists' checkbox.

However, this just transfers the file check to ASP.NET rather IIS, so I just get a different error page when requesting URLs with the file extension.

Is there a way to preempt this ASP.NET file checking and intercept the requests?

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