tool for monitoring the windows messages used by an external application

i am looking a tool for monitoring t开发者_如何转开发he windows messages fired by an external application in real-time.

some time ago i used winsight32 (tool that ships with Delphi), but is very memory expensive and freeze my laptop.

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Winspector is probably what you want. Not only you can look at all the messages, but also at all windows flags.

Does API Monitor do what you need?

Alternately, if you have Visual Studio installed (full, not express), there is a sample called Spy++ which might do what you want.