Sims 3

I am just wondering whether a purchased version of Sims 3 Pets (digital) will work when installed with versions of Sims 3 that I downloaded from this website?
The versions and expansions that I downloaded all work fine, I am just curious incase the Pets expansion being legit will mess things up?
Thanks!
Answer #1
Answer #2
No, its won’t work if you buy it from steam.
Answer #3
Shadowic replied: No, its won't work if you buy it from steam.
if he planning ti buy it from here
http://www.direct2drive.com/
then it will work