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Accepted
Ronnie Overby
Asked: 2009-08-06 10:43:04 +0800 CST

How to serve unknown file types from IIS 7

  • 772

Is there a way to serve unknown file types in IIS 7?

I only want to do this for a single directory where execution is turned off and everything will be served as a static file.

As it is now, I have to add each file extension that I want to serve as a MIME type. I want to serve everything. How can this be done?

windows-server-2008 iis-7 mime

3 Answers

  1. Best Answer

    You can add an universal MIME type by using the extension "*" and the type "application/octet-stream": http://support.microsoft.com/kb/326965

    • 15

  2. Instead of going through the MMC like the kb article suggests, you can also just create a Web.config file in the directory, with the following content:

    <?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <staticContent>
            <mimeMap fileExtension=".*" mimeType="application/octet-stream" />
        </staticContent>
    </system.webServer>
</configuration>
    • 6

  3. Just in case pictures help. This is for IIS v10 installed on a windows 10 box:

    1. Go to MIME Types feature of the virtual directory of your website:

    enter image description here

    1. Set up the asterisk based mime type to support unknown file types:

    enter image description here

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