Sorry for taking so long to post back. Creating an alert in Windows Server 2008 requires you to first setup a windows scheduled task and also a performance counter. In performance monitor you create a new data collector and add an alert. You can specify different counters in your alert. I added logical disk counters to measure the % free disk space for each of my drives on the server. Then specify any necessary requirements like trigger the alert if the disk space goes below %15. Switch over to the action tab here is where it differs slightly from Windows Server 2003. In 2008 your action is the name of a windows scheduled task. So if you have a powershell script or vbscript you need to add that to a windows scheduled task. This task doesnt need a schedule associated with it. Then in your action you type in the name of the scheduled task and your done. This probabnly should be written up in an article to explain it better. If there is a specific question that you have let me know.