IIS download file size limit?

I recently setup an IIS FTP site and everything is working fine, but when trying to download a large file then I am getting a server error. I am logged using the http://localhost/ command and if I am clicking on smaller files a download box appears to save, but when clicked on the larger files then I am getting - This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying.


Can anyone please help? Thanks

To just let you know that it is a website through IIS and the file sizes that I have an issue with are between 4gb and 5gb? Thanks for any information.

I am having the EXACT same problem, but I am on Windows XP. And just to clarify this is IIS 5.1

Actually, the download size in IIS is limited upto 4mb only but it can be changed by editing the AspBufferingLimit property in the metabase.xml that is located under this path - C:\windows\sytem32\inetserv