Ophcrack is a portable Windows password cracker based on a time-memory trade-off using rainbow tables. This is a variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.
Password Security Scanner is a freeware app that can scan the passwords stored by popular Windows applications Microsoft Outlook, Internet Explorer, Mozilla Firefox, and displays security information about all these passwords.
Dialupass enumerates all dial-up/VPN entries on your computers and displays their login details including User Name, Password, and Domain. You can use Dialupass to recover a lost password of your Internet connection or VPN.