SWFUpload Error 500 or Request object error ‘ASP 0104 : 80004005′ Operation not Allowed

This error is to do with the maximum file upload size allowed by ASP as global setting. By default the max size is set to 200KB.

To change this setting you need to edit the MetaBase.xml file located under c:\windows\system32\inetsrv\

1. Stop IIS
2. Open c:\windows\system32\inetsrv\MetaBase.xml
3. Search for “AspMaxRequestEntityAllowed”
4. Change the value to 1073741824 (one gigabyte) or some other maximum value that’s valid for your setup
5. Save and close the file
6. Start IIS