Disable venet0 interface

Hi,

I don't found thread which resolve my problem.

In Proxmox 1.9 and 2.1, I use the follow link for disable venet interface on my system : http://wiki.openvz.org/Disable_venet_interface
But since Proxmox 2.2, /etc/init.d/vz have change and when I modify it by the indication of the wiki, my system crash :

I must use an rescue CD for restore /etc/init.d/vz and all it's working (but venet is not disabled).

If you can help me.. thanks in advance.
Best regards,