Ophcrack 2 — The fastest Windows password cracker
The Ophcrack LiveCD is a bootable Linux CD-ROM containing ophcrack 2.2 and a set of tables (SSTIC04-10k). It allows for testing the strength of passwords on a Windows machine without having to install anything on it. Just put it into the CD-ROM drive, reboot and it will try to find a Windows partition, extract its SAM and start auditing the passwords.
I downloaded the iso, burned the CD, and tried it on my son’s PC(W2K Pro), my laptop(XP Home) and my desktop(XP Pro). It was impressively fast at figuring out my local Administrator passwords. Naturally it does not know about the network password since it is not stored locally. I had to run it manually with my desktop since it is a dual boot machine and Ophcrack did not detect the NT partition with windows on it.