Winspector Spy

Have you ever used Spy++ that comes with MSVC? If you have then you know what Winspector is - but take out all of the annoyances of Spy++ and add in a big bag of handy tweaks and features.

Winspector is a Windows application that allows you to look at the messages being sent in the system. When developing your own applications you can see the messages and you can inspect them, but you cant do the same with other running applications. With Winspector you can.