Preventing All File Downloads in Folder with Web.config File

If you ever happen to need to prevent files from being downloading from a particular folder, you can add this web.config to that folder:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <handlers>
      <add name="Disable File Downloads" path="*" verb="*" type="System.Web.HttpNotFoundHandler" />
    </handlers>
  </system.webServer>
</configuration>

I have tested this with IIS 10, though I believe it works with most modern versions of IIS (say, IIS 7 and greater).

Much of this was derived from this Stack Overflow post: https://stackoverflow.com/a/27947061/2052963