Using Flash to create content for Flash Player 4

To use Flash to create content for Flash Player 4, specify Flash Player 4 on the Flash tab of the Publish Settings dialog box (File > Publish Settings).

Flash Player 4 ActionScript has only one basic primitive data type, which is used for numeric and string manipulation. When you write an application for Flash Player 4, you must use the deprecated string operators located in the Deprecated > Operators category in the ActionScript toolbox.

You can use the following Flash features when you publish for Flash Player 4:

The array and object access operator ([])
The dot operator (.)
Logical operators, assignment operators, and pre- and post-increment/decrement operators
The modulo operator (%), and all methods and properties of the Math class

The following language elements are not supported natively by Flash Player 4. Flash exports them as series approximations, which creates results that are less numerically accurate. In addition, because of the inclusion of series approximations in the SWF file, these language elements need more space in Flash Player 4 SWF files than they do in Flash Player 5 or later SWF files.

The for, while, do..while, break, and continue actions
The print() and printAsBitmap() actions
The switch action

For additional information, see About targeting earlier versions of Flash Player.

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