The application compilers support adding metadata to SWF files. This metadata can be used by search engines and other utilities to gather information about the SWF file. This metadata represents a subset of the Dublin Core schema.

You can set the following values:

• contributor
• creator
• date
• description
• language
• localized-description
• localized-title
• publisher
• title

For the mxmlc command-line compiler, the default metadata settings in the flex-config.xml file are as follows:

<metadata>
    <title>Adobe Flex 2 Application</title>
    <description>http://www.adobe.com/flex</description>
    <publisher>unknown</publisher>
    <creator>unknown</creator>
    <language>EN</language>
</metadata>

You can also set the metadata values as command-line options. The following example sets some of the metadata values:

mxmlc -language+=klingon -title "checkintest!" -localized-description "it r0x0rs" en-us -localized-description "c'est magnifique!" fr-fr -creator "Flexy Frank" -publisher "Franks Beans" flexstore.mxml

In this example, the following values are compiled into the resulting SWF file:

<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
    <rdf:Description rdf:about='' xmlns:dc='http://purl.org/dc/elements/1.1'>
        <dc:format>application/x-shockwave-flash</dc:format>
        <dc:title>checkintest!</dc:title>
        <dc:description>
            <rdf:Alt>
                <rdf:li xml:lang='fr-fr'>c'est magnifique!</rdf:li>
                <rdf:li xml:lang='x-default'>http://www.adobe.com/flex<
                    /rdf:li>
                <rdf:li xml:lang='en-us'>it r0x0rs</rdf:li>
            </rdf:Alt>
        </dc:description>
        <dc:publisher>Franks Beans</dc:publisher>
        <dc:creator>Flexy Frank</dc:creator>
        <dc:language>EN</dc:language>
        <dc:language>klingon</dc:language>
        <dc:date>Dec 16, 2005</dc:date>
    </rdf:Description>
</rdf:RDF>

For information on the SWF file format, see the Flash File Format Specification, which is available through the Player Licensing program.