Once you have SWF Studio installed, download flashkit_copyfolder.zip and enjoy

You'll find a copy of the new CopyFolder plugin (instructions for installing it are in the ZIP file) and a working demo application that shows you how to use it. You get a notification when the copy is complete, you are told whether the copy operation completed or if the user aborted it and you get a Win32 system error code if anything else happens.

The plugin is called asynchronously so your Flash app won't time out and show you that annoying "script is running slowly" dialog (like Zinc will) and there's no artificial limit on the number of files and folders you can copy (like Zinc imposes).

Let me know if you have any problems getting this to work.

Be sure to stop by http://www.northcode.com/forums too.