Start > Settings > Control Panel, Administrative Tools, Performance. Go to the System Monitor node in the tree. If there are graphs already showing, you may want to click the New Counter Set button (first in the toolbar). Now click + (add), then in the Add Counters box, select the Process performance object, then Handle Count in the counters list and the process you want to monitor in the Instances list. Click OK. If you want to monitor over a longer time, you can use the logging features instead. Expand 'Performance Logs and Alerts' in the tree, then select Counter Logs. Right-click in the right-hand pane and choose New Log Settings. To view the logged data, use the System Monitor (click the cylinder toolbar button next to the chart button). It's incredible how few people know that Windows has built-in extensible monitoring of performance information. I'm currently looking into adding performance counters for our server application - not very easy in unmanaged code, but the .NET Framework has much simpler support through the System.Diagnostics.PerformanceCounter class. Stability. What an interesting concept. -- Chris Maunder