FileAttributes
tag in a SWF file. The FileAttributes tag defines characteristics of the SWF file. This tag is required for SWF 8 and later and must be the first tag in the SWF file. Additionally, the FileAttributes tag can optionally be included in all SWF file versions. The HasMetadata flag identifies whether the SWF file contains the Metadata tag. Flash Player does not care about this bit field or the related tag but it is useful for search engines. The UseNetwork flag signifies whether Flash Player should grant the SWF file local or network file access if the SWF file is loaded locally. The default behavior is to allow local SWF files to interact with local files only, and not with the network. However, by setting the UseNetwork flag, the local SWF can forfeit its local file system access in exchange for access to the network. Any version of SWF can use the UseNetwork flag to set the file access for locally loaded SWF files that are running in Flash Player 8 or later.
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