To enable multiple simultaneous downloads in IE 9 (beta)
- Navigate to the following location: HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet Settings
- Right-Click Internet Settings select New then click DWORD (32-bit) Value.
- Name this value MaxConnectionsPerServer and set its value to 4.
- Right-Click Internet Settings select New then click DWORD (32-bit) Value.
- Name this value MaxConnectionsPer1_0Server and set its value to 6. You can set both of these to as many as you want, but settings them to 4 and 6 is a safe number
You should now be able to download more than 2 downloads at the same time. To revert, just remove the 2 values.