Hi,

A client has loaded up a flash presentation into their web space.  I created a 'safe' directory where this flash file and all of its resources could be placed.  It has been added as a reserved URL in their Umbraco web.config file:

<add key="umbracoReservedPaths" value="~/umbraco,~/install/,~/custom-content/" />

When they load the HTML page containing the flash file it works fine.  However, the flash file fails to load any of the dynamic resources (images, zip files etc) it needs - they all give 404 errors.  I can see the file paths being loaded using Chrome dev tools and they're legitimate file paths - the files are on the server but when they're called they just redirect to '/login.aspx?ReturnUrl=%2fcustom-content%2fthe-file-path-etc-etc'.  It's almost as if IIS is hijacking the images and zip files and preventing them from being served correctly, instead IIS is defaulting to the page defined in the authentication part of the web.config:

<authentication mode="Forms">
    <forms name="yourAuthCookie" loginUrl="login.aspx" protection="All" path="/" />
</authentication>

Does anyone know why this is happening and how to allow it to serve the resources correctly?

Thanks.