Firewall Blocks Play

Hi,

I have a friend who's in Uni. He wants to play warcraft but his firewall wont let him and the people in charge wont add warcraft to the exceptions.

Is there anyway for him to play? He said he's been using something called yourfreedom but its now not working any more.

Does anyone here know of a way he can get past his firewall to play warcraft?

Thanks,
Matthew