Controls the maximum request size allowed for a file upload. This setting only applies to the Web Server. This value is represented in kilobytes, and the default is 30,000 KB (30 MB). If users need to upload files larger than 30,000 KB, increase the maxRequestLength.
Note:
The maxRequestLength setting specifies the maximum request size for uploading files, not the maximum file size. Files uploaded through the Web Client are encoded when passed to the Application Server, resulting in a larger request.
For information about accommodating file uploads in IIS, see maxAllowedContentLength.