Microsoft Windows Spy (SPY.EXE) is a tool for the Microsoft Windows operating system. Spy makes it possible for you to monitor messages sent to one or more windows and to examine the values of message parameters.
Note:
If you are using the Microsoft CodeView for Windows (CVW) debugger to debug your application, you can use CVW instead of Spy to trace messages.
This chapter describes how to use the Options!, Window, and Spy menus to specify how Spy is to operate.