When you trying to upload a file that more than 200KB, you will never ever able to upload it or you will get a blank result instead.
The reason behind this is happened is because IIS 6 set the ASP upload limit to 200KB as default. To get this fix, you will need to change your setting from the IIS metabase setting.
First of all, please make sure that you do allow the IIS metabase to be able to edit during IIS6 is running.
1. Open your IIS6.
2. Select on your hostname.
3. Right click the properties and tick the “Enable Direct Metabase Edit”.
4. Next, Edit the file named metabase.xml in C:\Windows\System32\inetsrv.
5. Now, search the value of “AspMaxRequestEntityAllowed” and change it to your desired value. **If you wish to change to 20MB, please input 20480000