I am developing a small application which monitors the users and their logon and log of time.though I have partially implemented the system up to tracing the current user.but still I have no idea how to trace the shutting down time.I have implemented my ptroject using java.so I have created a executable jar file add it up in the windows startup so then I can trace the windows starting time.but how can I trace the windows shutting down time? Please help me I am closing to the deadlines of my projects for the year end exams.