So you use pirated software?
I'm not quite sure. I had office 2003 which I got with my computer (it was installed by the store owner) and something wierd happened and something corrupted all my office programs. I dug up my cd and then I realised some bad news. Cracked down the center.
My uncle had an office cd which he burned for me. I installed it without a hitch but to my suprise, I got no prompt for serial key. I sure hope it's not pirated!