Product key invalid

I just bought the age if empires collection edition from steam and when I went to activate the product key I got invalid key error, can someone let me know if I contact Microsoft or steam for support.

any help is greatly appreciated

Hi, you mean error 100 bad cd key? You can try clearing out your registry with this script: http://agecommunity.com/downloads/AOE3_Win7_Registry_101.zip

However, it seems Steam may in fact be handing out invalid keys for the past days.

It was the product key when I tried to register the game it was giving me invalid key but with the registry cleaner you provided that did work and I was able to register the game and even get online to play.

Thank you so much I really appreciate it

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