To launch an external app try WshShell.Run or WshShell.Exec and supply it with the exact same command line that you put into the Run key. You can find more info on the WshShell.Run command here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/wsmthrun.asp RageInTheMachine9532

Windows sends a (rather, a few) WM_DEVICECHANGE message to all top level windows when *anything* in the device list changes. You can also register for notifications for a specific device class, usign RegisterDeviceNotification() Note: There's a bug in Win98 that makes UnregisterDeviceNotification crash. "Der Geist des Kriegers ist erwacht / Ich hab die Macht" StS sighist | Agile Programming | doxygen