System Lock 1.2.1 for Win9x/Mill (194 kb) 
 From NonagsPLUS (Members) (194 kb) 
 Updated: Sep 23, 2001 
 Homepage 
 Author: r2 studios 
 Description: System Lock allows you to lock your desktop so that no other users may use your computer. Windows NT/2000 already comes with this capability, but what about Windows 95, 98 & ME? System Lock contains numerous Options for security and appearance. It also has a unique protection system in that, if your computer is restarted or a power failure causes your machine to reboot, System Lock will automatically lock the system on restarting, so that you computer will remain locked. This option is of course only an option, and every user may not need this option. Upon System Lock Launching it will automatically minimize into the System Tray, ready for activation. If you simply double click on the icon, it will lock the system for you. Right clicking on it will bring up a context menu allowing you to open the prefrences Dialog, or Unload it from memory. If you add the paramater '/QUICKLOCK' without the quotes to the end of your shortcut, System Lock will lock straight away and when the correct password is entered it will unload itself from memory. 

http://www.r2.com.au/downloads/index.html?id=syslock