I'd written a winform C# application. Recently, I was told by an internal customer that the application would occasionally become not responding when it is re-accessed after leaving it idle for a while. When the situation happened, the application needed to be forcefully terminated.
I am not sure whether it was due to a fault inside my application, or other applications that were running at that time, or Windows issue.
What is the best way to diagnose this sort of problem?
Thanks in advance.