How to force automatic configuration script via GPO in IE10

My GPO that I've used for Windows XP and 7 workstations to force the automatic proxy configuration url (wpad) dont' work in Windows 8 and IE10.

There are any other GPO to do this?

I've done some tests with User Configuration - Preferences - Control Panel Settings - Internet EXplorer 10 and the settings that I setup aren't being applied.

Thanks,

Américo