I know this is not helpful, but it works perfectly fine for me. Maybe it is because I used my hotmail account as my GFWL account. AoE3 downloaded and installed without a hitch.
Anyways, Dragon Age: Ultimate Edition is on sale for 24.97 on Impulse
ImpulseDriven : Age Gate .
And steam is having a sale with new stuff each day until the 29th
Welcome to Steam. Some highlights are Borderlands for 9.99, Prototype for 14.99 and Shank for 10.04. Also there are some big game packs (multiple copies of the same game). Finally every day 30 people will win the top 5 items in their wishlist so don't forget to add stuff.