Short description of Transparent Screen Lock PRO for WinNT/2000/XP/2003 4.50: Password protect your workstation or server with Transparent Screen Lock PRO while viewing programs that are running. Prevent system access via CRTL-ALT-DEL. Log file tracks failed logon attempts, and can initiate shutdown/logoff. Save log file locally, to network or to Event Log. Use quick-launch icon or run as screensaver. Option to grant system access to Administrators and/or other authenticated users without closing current session.