How to write event for unexpected window

HI,

I am getting unepxcted network error...some times, do i wrote a unexpected window event handler as below, but its not working all the time, any improvement in the code?

Sub AssetsOnlineServerError_OnUnexpectedWindow(Sender, Window, LogParams)

aqutils.Delay(2000)
Log.Warning("Application is Going to terminate as Asset Online Server Occured")
Sys.Process("Client*").Terminate
Log.Warning("Application Terminated")
aqutils.Delay(1000)
Call ReturnToBaseState
Log.Warning("Application returned to Base State and ready for Next test case to execute")

End Sub