IIS 6.0 with .iso file extension

I was told that my IIS 6.0 denied .iso file download (something like http://www.mysite.com/filename.iso) I tried it and I got HTTP error 404, the request was logged and Urlscan wasn't installed...

After googling for it, I found the solution and I also get a deeper knowledge of IIS .

Every single HTTP request is parsed by http.sys and checked against Mime Map;
if the file extension is not present into the Mime Map, you can add it using application/octet-stream description and restart IIS.

More information about Mime Map are provided here:
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Vittorio Pavesi

1 comments

  1. Thanks for posting that short summary. It was exactly what I was seeking. I added .ISO to the mime types for the site, and now the file can be downloaded.

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