Found Old game

[BuzzBazz]

Hello, Merry Christmas and Happy New Years!
I'm currently digging through storage so my wife and I can have space for a little one coming in a few days, and I stumbled upon a copy of Alpha Protocol.
Trying to add the activation to Steam didn't work, and trying to force the forums to let me post in the archived forums didn't work, so I'm here.
How would I go about to activate such an "Ancient" serial, or did it get patched out? Is there a thread with info I missed or am I just out of luck and can't use the copy I "rediscovered"?

[Gfted1]

Hi BuzzBazz,

Your best option is probably to contact Obsidian directly at: Obsidian Entertainment Support