question
 

well i got a friend that has half life 2 installed but he didnt install Counter Strike. he doesnt play CS becuz he doesnt have dsl, so i was wondering if i can install CS without any problems.....

If he has hl2 installed then it uses his cd key so nope you won;t be able to play cs online. If you use his key then it'll either say the key is in use or log him out depending if hes logged into steam at the same time as you. If hes offline though it would probably work.

he uses bart-net(rofl) and he s always on offline mode.....i hope it works i dont want to buy half life 2 just so i can play CS...

wtf be bartnet?

why not? half life 2 rocks