Use this one, its kinda free.
1. Create account (if its ended,create new email and again create new one - like this it will be free all the time)
2. Wait for activation (its taking about 5minutes mostly)
3. Install, log in, config everything by your desire (ping servers at first to get best proxy for you)
4. Log in to the game and start playing
If you start feeling lags when u are using this program, just log out and ping proxies again, then choose one with lower ms and play again.
p.s. in web they written that u can/will get discconects after every 20minutes, but for me its not working, so i guess they are lying
p.s.s.If u afraid of keylogers or other shit, type in google wtfast, you will find it in first result of your search