mit "SWFDecompiler" kannst du alles? aus nem *.swf extrahieren. kannst dann sicherlich einiges bearbeiten oder ersetzen und dann ein neues Flash erzeugen.
berichtigt mich wenn ich falsch liegen sollte.
auszug aus der readme.txt :
DESCRIPTION
Sothink SWF Decompiler is a tool to browse, view and parse
Shockwave Flash movies (.swf files). It can extract sounds,
images, movie clips from a Flash movies. What's more, Sothink
SWF Decompiler can decompile the action scripts in a Flash
movie and turn them into neat and readable code.
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FEATURES
* Provides a user-friendly interface to quickly browse and play
SWF from your hard-drive or network;
* Supports Flash movies in format both *.swf and *.exe;
* Extracts the resources of SWF and sorts them in categories;
* Decompiles and generates neat and readable code of action
scripts;
* Supports to export any selected element or all elements;
* Enables to scan the cache of IE and list all viewed flash
files;
* Supports to browse and preview any parsed resource before
exporting;
* Shows detail properties of elements used in Flash movies;
* Can be invoked from Windows Explorer or MS Internet Explorer
browser.
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UPDATE
Please visit
http://www.sothink.com/ for updates and other
products.