When you develop applications inside the Flash IDE you can see all the trace output inside Trace panel of IDE. However, there are lots of cases when you need to test your applications in browser and not as a standalone application. This makes impossible reading trace output and makes debugging your applications hard.
To see trace output outside the Flash IDE you need external application. In this article we will use applications called Vizzy.
Here are some examples why you might experience testing your application outside the Flash IDE: for instance, your application uses FlashVars provided from html, or your application calls Javascript functions on a web page where it's published.
Luckily, there are external programs that can be very helpful in that cases. Vizzy is preferable because it's free and multi-platform. Download it from
http://code.google.com/p/flash-tracer/When you execute it for the first time, Vizzy makes all the necessary configuration for you and if something is missing it will tell you how to resolve that.
Vizzy shows all the trace statements of all flash applications running. It does not depend whether applications is running in standalone mode or inside a browser window.
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