problem in tracking program usage

[Bond98535]

I need help on tracking program usage coding, which will keep track of any programs when it startup and ends. Currently i am using
System.Diagnost ics.Process.Get Processes
but this code wasn't effective as it doesn't keep track of program start time and end time and i need a timer to continue looping it.

Anyone knoes anyway like having an event handler etc?

Thank you SO much..~~

[Killer42]

How precise do the start/end times need to be? Perhaps you could just record the time when you noticed the change.