var presentation:File = File.documentsDirectory.resolvePath("files/Manual_del_Profesor_moodle.pdf");
presentation.openWithDefaultApplication();
pero me da este error:
ReferenceError: Error #1069: Property openWithDefaultApplication not found on flash.filesystem.File and there is no default value.
at primero/onChangeTree()[C:\Documents and Settings\annier\Adobe Flash Builder Beta 2\primero\src\primero.mxml:112]
at primero/__tree_change()[C:\Documents and Settings\annier\Adobe Flash Builder Beta 2\primero\src\primero.mxml:18]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:11749]
at mx.controls.listClasses::ListBase/mouseUpHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\listClasses\ListBase.as:10156]
at mx.controls::List/mouseUpHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2474]
at mx.controls::Tree/mouseUpHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\Tree.as:3150]
