Timothy Reaves wrote:

>     Is there a utility that I can use to investigate message sends?  
> I'm  trying to figure out  how a few apps work, and this would be useful.
>
>     So for example, I could open the browser, hit a start button,  
> perform some other actions with an app, go back to the browser and  
> click stop.  I would then be presented with a list of all message  
> sends that occurred between the two button sends.
>
MessageTally works like that.
In the WorldMenu select debug, then MessageTally.
Karl