I am trying to setup an E-Product on the E-commerce template. It is a 50MB MP3 file. I am getting the error below when uploading the file. If I add the file to the site tree as a File, it adds fine.

I am running the default web.config and have this tag:
<requestLimits maxAllowedContentLength="2147483648" />

Server: IIS 7.5 on Windows 2008R2.

Has anyone seen this and been able to upload large files for the E-Products?

Error Summary
HTTP Error 404.13 - Not Found
The request filtering module is configured to deny a request that exceeds the request content length.
Detailed Error Information
Module RequestFilteringModule
Notification BeginRequest
Handler PageHandlerFactory-Integrated-4.0
Error Code 0x00000000
Requested URL http://127.0.0.1:80/CMSModules/Ecommerce/Pages/Tools/Products/Product_New.aspx?content=1&classid=3442&parentnodeid=9840&parentculture=en-US
Physical Path C:\websites\Kentico7\CMSModules\Ecommerce\Pages\Tools\Products\Product_New.aspx
Logon Method Not yet determined
Logon User Not yet determined
Most likely causes:

Request filtering is configured on the Web server to deny the request because the content length exceeds the configured value.

Things you can try:

Verify the configuration/system.webServer/security/requestFiltering/requestLimits@maxAllowedContentLength setting in the applicationhost.config or web.config file.