SimpleActivityLogger is a small DLL that hooks into Windows and records the following events: * System Startup & Shutdown * User Logon & Logoff * Console Lock & Unlock * Screen Saver start & stopThere is a also a small GUI application to allow the user to specify what events are logged and to where and is also a simple log viewer.SimpleActivityLogger is most useful for people who need to track their computer usage during the course of a day for billing purposes, where system startup & shutdown and/or logon & logoff times are a good indication of the amount of billable time they have spent using the computer.It is also useful for tracking the usage of a shared computer.