It seems every two weeks around the same time my 2003 exchange server "crashes". I disables anti-virus software, and i don't see anything happening at the time the systems goes down. I was able to log on and look at the task manager. inetinfo.exe and store.exe were combining to use 100% of the CPU. Occasionally svchost would pop in and use quite a bit of the CPU as well. My first thought was it has to be something that is scheduled, because it happens around the same time. Early in the moring on Sunday. I just don't see anything.