Is this game CD Keys supported

[Defensivo]

Well i bought the complete edition about 2 years ago, now the CD is lost somewhere in the 3 dimensions of my room, things lost and appear im not kidding :D, well yeah is this key supported on Steam

[luciusvarenus]

i have the same question. i own complete edition, i have the cd, but i want it in my steam library.

[FuzzyLogic]

Note:

Retail CD-Keys for this game cannot be registered through Steam.
https://support.steampowered.com/kb_article.php?ref=2010-IAFZ-6420

:(