I applied this to a laptop running Windows 7 Enterprise 32 bit. We have a GPO in use, but I didn't see any reference to this area in the policy editor. When a new user logged in, the UseRasCredentials was set back to 1. I went in an manually edited the file back to 0. Next time the VPN software was activated, it reverted to 1 again. I'm going back through the GPO, but can't find any reference to RAS in any of the network sections.
We have smart card credentials that authenticate us to both the wired domain and then back in through the VPN concentrator. My biggest problem is trying to figure out why the file reverts back to '1' when starting the VPN (Windows VPN) connection again...