iis7.0+php upload Mega file solution. How to solve it

iis7.0+php upload Mega file solution.
WIN7 under the configuration of the iis7.0+php environment, for the large file upload test, the general file is about 8G, in the php.ini has been set up a variety of upload parameters, you can exclude php.ini problems, I was uploaded with Swfupload+ftp, The error message given by the server is: The filter module is configured to reject requests that exceed the requested content length.
According to the relevant information, I set the maximum request entity principal limit to 10G, but the server prompt can only be between 0-4g, the server can only upload 4G? What should I do if I want to upload about 8G?

------Solution--------------------
The way the web does not meet such a large file upload, because uploading such a large file at the same time, server IIS also need to occupy such a large amount of memory.
Huge files are recommended for FTP, because FTP is the protocol invented for data transmission. The server does not consume memory. Compare scenarios that are suitable for large amounts of data interaction.

Landlord Try this control: http://www.cnblogs.com/xproer/archive/2010/04/17/1714073.html
This control is a file upload feature that is implemented based on the standard FTP protocol. Support for 10G size file breakpoint Continuation, the user experience is very good, especially for large file upload requirements of the project.
Another feature is the support for automatic uploading of specified local files

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