#0 - May 10, 2010, 3:08 a.m.
Prompt reply is greatly appreciated cause Blizzard tech support are lazy people.
Q u o t e:
You do not need the CD key to install the game again - only the CD's.
Incidently, the Wrath DVD has all 3 games on it so if you use the wrath DVD it will install the game from scrath and then you can patch (MUCH quicker than loading them all one by one).