FourEyes allows network administrators to enforce a four-eyes policy on Windows NT, 2000 and XP by requiring two users to authenticate during a local logon. A user can only use the computer if another user (the observer) also logs on.
Password Policy Enforcer allows network administrators to create and enforce a password security policy. PPE checks every new password for compliance with the password policy. Passwords that do not comply with the password policy are rejected.