AirSnare is a nice, free Windows program, belonging to the category Security software with subcategory Blockers & Access Control.
Advanced Parental Control
Are your kids abusing the computer? Advanced Parental Control enables you to supervise and control how they use the PC and Internet.
ABC Security Protector
ABC Security Protector is a nice free password protected security utility, which enables you to protect your PC by disabling some features like: use of the MS-DOS command prompt in Windows and real mode DOS applications from within the Windows shell, and disable function keys on boot up like the F5, F6 and F8 keys.
1st Disk Drive Protector
Wulfillo Password Recovery Center
This program recovers forgotten Win XP/2003 & Access 97/2000 Passwords.
Windows Security Officer
Windows Security Officer is an autonomous provider of log-on and resource restriction security application integrated with, yet independent of, the Windows 9.
Wefisy: Web Filtering System
Wefisy, short for Web Filtering System, is a web filtering system for parental control.
*WebandAppBlocker allows you to Block Websites.
Unlock Voxx for a lifetime!.
User Time Administrator
User Time Administrator lets you specify when exactly and how long the computer can be used and define users which will be allowed to use the computer without any limits.
Tweaking Toolbox XP 2
The utility for any serious Windows tweaker!.