Change DNS Setting programically

[jminnie]

When I am fixing one of my customers computers, one thing I always do is change their DNS settings to a better (more secure) DNS server. Usually Comodo, Google or Symantec DNS because they offer protection from bad sites. Is there a way to change these settings without having delve into the control panel and change them? I want to try and speed up (and automate) many of my routine tasks while fixing a computer and it would be great if I could automate the DNS settings change.

For example, change the current DNS to "156.154.70.22 and 156.154.71.22" (Comodo)

Thanks,
Jason