Password Lock Transparent Screensaver Utility 

Password protect access to your computer, while monitoring programs that are running in the background. Perfect for system administrators, retail stores running computer demos, or any user of email, instant messaging or live stock quotes.
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Transparent Screen Lock for WinNT/2000/XP/2003 

Password protect your workstation or server with Transparent Screen Lock while viewing programs that are running. Any attempts to access the system will display a message box to request the password. Includes a log file to track activity.
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Transparent Screen Lock PRO for WinNT/2000/XP/2003 

Password protect your workstation or server with Transparent Screen Lock PRO while viewing programs that are running. Log file tracks invalid logons. Prevent system access via CTRL-ALT-DEL. Grant access to Adminstrators or other authenticated users
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