PASSWORD CRACKING TOOL : L0PHTCRACK

L0phtCrack attempts to crack Windows passwords from hashes which it can obtain (given proper access) from stand-alone Windows workstations, networked servers, primary domain controllers, or Active Directory. In some cases it can sniff the hashes off the wire. It also has numerous methods of generating password guesses (dictionary, brute force, etc).

Download here:

http://www.l0phtcrack.com/download.html

PASSWORD CRACKING TOOL : CAIN AND ABEL

This is one of the top password recovery tools for windows. This Windows-only password recovery tool handles an enormous variety of tasks. It can recover passwords by sniffing the network, cracking encrypted passwords using Dictionary, Brute-Force and Cryptanalysis attacks, recording VoIP conversations, decoding scrambled passwords, revealing password boxes, uncovering cached passwords and analyzing routing protocols. 

Download here:

http://www.oxid.it/cain.html