The Battle.net server. It doesn’t work with VOV and SK2. Tragedy and discussion:

X: Blizzard saves the world, the servers are blown up, no way comrades, go with the girl go for a walk or find her for yourself!
Y: It’s more stupid to say that and it’s not possible...I’d like to walk with a girl I’d go for a walk with a girl...and I’d like to fill a rhetoric!!by 1111

c) RRock