Excluding classes in ActionScript 3.0 / Flash CS3

[LEFT]I want to exclude classes from the compilation in Flash CS3 / ActionScript 3.0.

I have try it with an *_exclude.xml file like http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00000817.html (AS 2.0 example) but it doesn’t work.

Does anyone have a solution?
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