Pure ASP Upload 3 Manual

Advanced: Uploading Large Files on IIS7 (Windows Vista/Windows 2008)

In this article we will show you how to upload large files on IIS7 (Windows Vista/Windows 2008). In order to be able to upload large files you need to change a special option in IIS called maxAllowedContentLength to allow uploading larger files.

How to do it

1. Click Start. In the Start Search box, type Notepad. Right-click Notepad, and then click Run as administrator.
   *Note If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
   
   
2. On the File menu, click Open. In the File name box, type %windir%\system32\inetsrv\config\applicationhost.config, and then click Open.
   
   
3. In the ApplicationHost.config file, locate the <requestLimits> node.
   
   
4. Remove the maxAllowedContentLength property. Or, add a value that matches the size of the Content-Length header that the client sends as part of the request. By default, the value of the maxAllowedContentLength property is 30000000.

For example, modify the following configuration data inside the <requestFiltering> section.
    <requestLimits maxAllowedContentLength ="<length>" />

5. Save the ApplicationHost.config file.  

For more information see: http://support.microsoft.com/kb/942074/

More info about content filtering in IIS:

http://learn.iis.net/page.aspx/143/how-to-use-request-filtering/

http://www.iis.net/ConfigReference/system.webServer/security/requestFiltering/requestLimits