The FocusFlasher application was developed to be a small utility that will allow you to track down a bug in an ActiveX Document. This tool will continuously track the focus input.
It updates itself every second, displaying information about the window, which currently has focus. In a sense it is very similar to the popular SPY++ utility from the Developer Studio package, but it is easier to operate and may give you faster results. The tool also offers a great way to track a tabbing sequence out of order in a Visual Basic form or document.