Password breaking?

Does any body have any idea about key logger,how do I use it?

Well first off dont ust google them. I wear all the ones you fond with google are viruses of some soert.

If you want passwrd braking consider Brutus

Brutus is just a brute force application that's based on a dictionary attack, and in all fairness is not very good.

Just remember that password breaking is illegal, so is a keylogger as you are infringing on a persons privacy without their permission. Consider using a forensic professional to help you.